JP7770531B2 - air conditioning equipment - Google Patents

Description

This disclosure relates to an air conditioning device equipped with a filter in the air intake section.

Conventionally, air conditioners have a housing that forms the outer shell of the air conditioner, and a heat exchanger and blower disposed inside the housing. The housing is formed with an intake section through which air flows from the outside of the housing into the inside when the blower is driven, and an outlet section through which air flows from the inside of the housing to the outside. Air conditioners have a filter disposed in the air intake section, which filters the air drawn into the housing (see, for example, Patent Document 1). By providing a filter in the intake section, the air conditioner can prevent dirt from accumulating inside the housing.

Japanese Patent Application Laid-Open No. 2014-227946

Air conditioners equipped with filters, such as those described in Patent Document 1, are provided with filter guides for securing the filters to the heat exchanger or the intake panel that covers the intake section from the outside of the filter, and the filters are secured to these. Furthermore, air conditioners equipped with filters secure each filter to the housing using fixing parts such as screws. Washing and cleaning the interior of an air conditioner is often time-consuming, and if filters are difficult to install and remove, it is difficult to clean the heat exchanger located inside the air conditioner. Therefore, there is a demand for an air conditioner that allows filters to be easily installed and removed from the housing, and that allows the heat exchanger to be easily washed and cleaned.

The present disclosure aims to solve the above-mentioned problems and provide an air conditioning device that allows the filter to be easily attached to and removed from the housing.

The air conditioning apparatus according to the present disclosure includes a blower, a heat exchanger that exchanges heat between a refrigerant flowing inside and air supplied by the blower, a housing that has an intake section into which air is drawn and an outlet section from which air is blown out and that houses the blower and heat exchanger, and at least one filter panel that has a filter and is disposed in the intake section to filter air flowing into the housing, the intake section having a filter fixing section that fixes the at least one filter panel, the filter fixing section having a filter support section formed in a plate shape and a shaft section that passes through the filter support section and supports the filter support section so that it can be hung and rotated freely, The filter support part has an upper part of the filter support part supported by an axis part so that it can rotate freely, and when at least one filter panel is placed in the suction part, it is suspended from the axis part by its own weight and faces all of the at least one filter panel from the outside of the housing, the lower part of the filter support part is formed with a wider plate width than the upper part of the filter support part, the suction part is part of the wall that makes up the suction part and has an open tip part that is formed in a cylindrical shape with a raised edge around the hole, the open tip part is inserted into an opening formed in the filter support part, and the axis part is inserted into and fixed in the hole at the tip of the open tip part .

According to the present disclosure, an air conditioning apparatus includes at least one filter panel that has a filter and is disposed in an intake section to filter air flowing into the housing. The intake section also includes a filter fixing section that fixes at least one filter panel. The filter support section of the filter fixing section is suspended by a shaft, and the upper portion of the filter support section is rotatably supported by the shaft. When at least one filter panel is disposed in the intake section, the filter support section of the filter fixing section faces all of the at least one filter panel from the outside of the housing. The lower portion of the filter support section is formed with a wider plate width than the upper portion of the filter support section. In the air conditioning apparatus, the lower portion of the filter support section is heavy, and the filter support section is positioned facing the filter panel due to its own weight. When disposing the filter panel in the intake section, the user does not need to fix the filter panel to the intake section of the housing with fasteners such as screws. Furthermore, the user can attach and remove the filter panel simply by rotating the filter support section. This allows the user to easily attach and remove the filter to and from the housing.

1 is an external perspective view of an air conditioning apparatus according to an embodiment, as viewed from the front side. 1 is an external perspective view of an air conditioning apparatus according to an embodiment with an intake panel removed. 1 is a perspective view showing a part of the interior of an air conditioning apparatus according to an embodiment. 1 is a side view showing the inside of an air conditioning apparatus according to an embodiment. 1 is an external perspective view of an air conditioning apparatus according to an embodiment with a filter panel removed. FIG. 2 is a schematic diagram conceptually showing a vertical cross section of an upper frame portion. FIG. 2 is a partial enlarged view of a lower frame portion of the housing. FIG. 2 is a schematic side view of a lower frame portion of the housing. FIG. 2 is a schematic diagram conceptually showing a cross section of the left frame portion. FIG. 10 is a schematic diagram conceptually showing a cross section of the right frame portion. FIG. 2 is a perspective view of a filter fixing portion of the air conditioning apparatus according to the embodiment. 10A and 10B are plan views showing other examples of the shape of the filter fixing portion as viewed in the axial direction of the shaft portion. FIG. 5 is an enlarged schematic view of part A of the air conditioning apparatus shown in FIG. 4. 14 is a schematic view of the filter fixing portion shown in FIG. 13 as viewed in the axial direction of the shaft portion. FIG. 14 is another schematic view of the filter fixing portion shown in FIG. 13 as viewed in the axial direction of the shaft portion. FIG. FIG. 2 is a perspective view of an extension portion of the air conditioning apparatus according to the embodiment. 5 is an enlarged schematic view of part A in FIG. 4 when an extension portion is provided in the air conditioning apparatus according to the embodiment. FIG. 18 is a schematic view of the filter fixing portion shown in FIG. 17 as viewed in the axial direction of the shaft portion. FIG. 4 is an enlarged schematic view of a connection portion between a filter fixing portion and an opening frame portion of an air conditioning apparatus according to an embodiment. FIG. 10 is a schematic diagram showing the rotation angle of a filter fixing part when a filter panel is attached or detached in an air conditioning apparatus according to an embodiment. FIG. 10 is a schematic diagram showing the rotation angle of a filter fixing part when a filter panel is attached or detached in an air conditioning apparatus according to a comparative example. FIG. 10 is a schematic diagram showing the rotation angle of a filter fixing part when a filter panel is attached or detached in an air conditioning apparatus according to a comparative example. FIG. 10 is a schematic diagram showing the rotation angle of a filter fixing part when attaching or detaching a filter panel in an air conditioning apparatus according to an embodiment. FIG. 10 is a schematic diagram showing the rotation angle of a filter fixing part when a filter panel is attached or detached in an air conditioning apparatus according to a comparative example. FIG. FIG. 2 is a plan view of a support pole of the air conditioning apparatus according to the embodiment. FIG. 2 is a side view of a support pole of the air conditioning apparatus according to the embodiment. FIG. 2 is an enlarged schematic view of the upper frame portion where the support column is installed. FIG. 2 is an enlarged schematic view of the lower frame portion where the support column is installed. FIG. 2 is a perspective view showing a mounting manner of a support part of the air conditioning apparatus according to the embodiment. FIG. 2 is a perspective view showing a state in which a support part of the air conditioning apparatus according to the embodiment is attached. FIG. 2 is a plan view of the support column attached to the upper and lower frame sections. FIG. 10 is a perspective view of the support column attached to the upper frame portion. FIG. 10 is a side view of the support column attached to the upper frame portion. FIG. 2 is a perspective view of the support column attached to the lower frame portion. FIG. 10 is a side view of the support column attached to the lower frame. 10 is an enlarged schematic view of an air conditioning apparatus according to an embodiment in which an extension portion is provided on a support pole. FIG. 37 is a schematic view of the filter fixing portion shown in FIG. 36 as viewed in the axial direction of the shaft portion. FIG. 1 is a perspective view schematically showing a filter panel attached to a housing of an air conditioning apparatus according to an embodiment. FIG.

The air conditioning device according to the embodiment will be described below with reference to the drawings. Note that the configurations of the components shown in the specification are merely examples and are not limited to these descriptions. Furthermore, in the following drawings, including Figure 1, the relative dimensional relationships and shapes of each component may differ from the actual ones. Furthermore, in the following drawings, items with the same reference numerals are the same or equivalent, and this applies throughout the entire specification. Furthermore, to facilitate understanding, terms or orientations indicating directions will be used as appropriate, but these notations are used for the convenience of explanation and do not limit the placement, direction, or orientation of devices, appliances, or parts, etc. Terms indicating directions or orientations include, for example, up, down, right, left, front, back, front, or back.

Embodiment
[Overall configuration of air conditioning device 100]
Fig. 1 is an external perspective view of an air conditioning apparatus 100 according to an embodiment, as seen from the front side. Fig. 2 is an external perspective view of the air conditioning apparatus 100 according to an embodiment, with an intake panel 17 removed. The configuration of the air conditioning apparatus 100 will be described with reference to Figs. 1 and 2. Note that, in Figs. 1 and 2, the X-axis direction is defined as the left-right direction, the Y-axis direction as the front-rear direction, and the Z-axis direction as the up-down direction. Furthermore, the left-right direction indicates the left and right of the housing 10 when a user views the housing 10 from the front side of the housing 10.

The air conditioning unit 100 is a device that conditions the air by adjusting the temperature and humidity of the air in the indoor space to be conditioned. The air conditioning unit 100 is a refrigeration cycle device that forms a refrigerant circuit in which a compressor, condenser, expansion valve, evaporator, etc. are connected by piping. The air conditioning unit 100 houses a heat exchanger 50 (see Figure 3) that functions as a condenser or evaporator, and a blower 60 (see Figure 3) inside the housing 10, and constitutes an indoor unit that is installed indoors.

1 and 2 show the air conditioning unit 100 as a floor-standing unit, but it is not limited to being a floor-standing unit and may be a ceiling-mounted unit, wall-mounted unit, or other installation configuration. Furthermore, the air conditioning unit 100 is not limited to being an indoor unit in a refrigeration cycle device, but may also be an outdoor unit installed outdoors, housing a heat exchanger 50 that functions as a condenser or evaporator, and a blower 60 inside the housing 10.

The air conditioning unit 100 comprises a blower 60, a heat exchanger 50, a housing 10 that houses the blower 60 and the heat exchanger 50, and at least one filter panel 70 that is disposed in the intake section 20 of the housing 10 and filters the air flowing into the housing 10.

(Housing 10)
As shown in Figures 1 and 2, the air conditioning device 100 has a housing 10. The housing 10 is formed in a box shape, and a space is formed inside. As shown in Figures 1 and 2, the housing 10 is formed in a rectangular parallelepiped shape. Note that the housing 10 is not limited to a rectangular parallelepiped shape, and may be formed in other shapes, such as a polygonal prism or a cylinder, as long as it is formed in a box shape with a space inside.

The housing 10 has an intake section 20 through which air is drawn in and an outlet section 30 through which air is blown out, and houses a blower device 60 (see Figure 3) and a heat exchanger 50, which will be described later, inside. The housing 10 has a front panel 11 that forms the front side wall, a rear panel 12 that forms the rear side wall, a right side panel 13 that forms the right side wall, and a left side panel 14 that forms the left side wall. The housing 10 also has a top panel 16 that forms the ceiling wall, and a bottom panel 15 that forms the bottom wall.

The front panel 11 and the back panel 12 are arranged to face each other in the front-to-back direction (Y-axis direction) of the housing 10. The right side panel 13 and the left side panel 14 are arranged to face each other in the left-to-right direction (X-axis direction) of the housing 10. The top panel 16 and the bottom panel 15 are arranged to face each other in the up-down direction (Z-axis direction) of the housing 10.

The front panel 11 is formed with an intake section 20. The intake section 20 forms an opening formed in the front panel 11 of the housing 10, and forms a through-hole that connects the inside of the housing 10 with the outside of the housing 10. The intake section 20 is a section through which air passes that is sucked from the outside of the housing 10 into the inside of the housing 10 by the air flow formed by the blower device 60.

A filter panel 70 is disposed in the intake section 20. The detailed structures of the intake section 20 and the filter panel 70 will be described later. An intake panel 17 is attached to the intake section 20 from the outside of the housing 10 so as to cover the filter panel 70. The intake panel 17 has multiple through holes 17a formed therein to allow air to pass through when it is drawn into the housing 10 from the outside.

A blow-out section 30 is formed on the top panel 16. The blow-out section 30 is an opening formed in the top panel 16 of the housing 10, and forms a through-hole that connects the inside of the housing 10 to the outside of the housing 10. The blow-out section 30 is a section through which air blown from the inside of the housing 10 to the outside of the housing 10 passes by the air flow formed by the blower device 60. The air blown out from the blow-out section 30 has had its temperature and humidity adjusted by the heat exchanger 50.

In the housing 10 shown in Figures 1 and 2, two blow-out sections 30 are formed on the top panel 16. Note that the number of blow-out sections 30 formed on the top panel 16 is not limited to two, and may be one, three or more. Furthermore, the location where the blow-out section 30 is formed is not limited to the top panel 16. The blow-out section 30 may be formed on the front panel 11, rear panel 12, right side panel 13, left side panel 14, bottom panel 15, etc., as long as it is in a position where air drawn in through the intake section 20 and heat exchanged in the heat exchanger 50 can be discharged.

Figure 3 is a perspective view showing a portion of the interior of the air conditioning device 100 according to the embodiment. Figure 4 is a side view showing the interior of the air conditioning device 100 according to the embodiment. Figure 3 shows the interior of the left side of the air conditioning device 100. The interior of the right side of the air conditioning device 100 is substantially similar to the interior of the left side. The internal configuration of the air conditioning device 100 will be explained using Figures 3 and 4.

The air conditioning unit 100 houses a heat exchanger 50 and a blower 60 inside the housing 10. The heat exchanger 50 is a device that exchanges heat between the refrigerant flowing inside and the air supplied by the blower 60. The heat exchanger 50 functions as a condenser or evaporator, and adjusts the temperature and humidity of the air drawn into the housing 10 from the intake section 20.

(Heat exchanger 50)
The heat exchanger 50 is, for example, a fin-and-tube heat exchanger, and is disposed at an angle inside the housing 10. The heat exchanger 50 is disposed at an angle in order to ensure an effective area for the heat exchange portion and to reduce the external dimensions of the housing 10, but at the same time, it also serves as a partition plate that guides air to always pass through the heat exchanger 50. A bottom panel 15 is provided below the heat exchanger 50. The bottom panel 15 serves as a drain pan to receive condensation water that drips from the heat exchanger 50.

(Blower device 60)
The blower 60 forms an air flow and supplies the air to the heat exchanger 50. The blower 60 is, for example, a centrifugal sirocco fan. The blower 60 has a plurality of blades 61 arranged in a cylindrical shape and a fan casing 62 formed in a spiral shape and covering the plurality of blades 61. The discharge section 62a of the fan casing 62 is connected to the blowing section 30 of the housing 10. The blower 60 draws air into the interior from the side of the fan casing 62, releases the drawn air to the outside by the action of centrifugal force of the plurality of blades 61, and discharges the air flowing inside the fan casing 62 from the discharge section 62a.

The air conditioning unit 100 is installed, for example, on the floor of a room in the air-conditioned space, and the blow-out unit 30 is connected to a blow-out duct (not shown) located on the ceiling of the room in the air-conditioned space. By driving the blower 60, the air conditioning unit 100 draws air from the air-conditioned space through the intake unit 20, passes it through the heat exchanger 50, and exchanges heat between the refrigerant inside the heat exchanger 50 and the air, and supplies the air to the air-conditioned space via the blow-out unit 30 and the blow-out duct. The air conditioning unit 100 conditions the air in the air-conditioned space by circulating the air within the air-conditioned space. Note that the air conditioning unit 100 may also use a blow-out duct to condition a space in which the air conditioning unit 100 is not installed.

(Detailed structure of suction section 20)
Fig. 5 is an external perspective view of the air conditioning apparatus 100 according to the embodiment with the filter panel 70 removed. The configuration of the suction unit 20 will be described using Fig. 5 and Fig. 3. The suction unit 20 includes an opening frame 21 as shown in Fig. 5. The opening frame 21 of the suction unit 20 is the portion to which the filter panel 70 is attached.

The opening frame 21 is a frame member provided within the opening of the suction section 20. When viewed from the front panel 11 side of the housing 10, the opening frame 21 is formed in a rectangular frame shape. The opening frame 21 is provided within the housing 10. The opening frame 21 is provided within the housing 10 relative to the suction panel 17. As shown in Figures 5 and 3, the opening frame 21 includes an upper frame 22 located at the upper edge of the suction section 20, a lower frame 23 located at the lower edge of the suction section 20, a left frame 24 located at the left edge of the suction section 20, and a right frame 25 located at the right edge of the suction section 20. The opening frame 21 may also include a support portion 90 and an extension portion 40 (see Figure 17), which will be described later.

Figure 6 is a schematic diagram conceptually showing a vertical cross section of the upper frame portion 22. The upper frame portion 22 will be explained using Figures 6 and 3. The upper frame portion 22 is a member that is elongated in the left-right direction (X-axis direction) of the housing 10. The upper frame portion 22 is a member that forms the upper part of the opening frame portion 21. The upper frame portion 22 has an upper frame front surface portion 22a, an upper frame top surface portion 22b, an upper frame bottom surface portion 22c, and an upper frame protruding wall portion 22d.

The upper frame front surface portion 22a is a wall portion that forms a wall facing the front-to-back direction (Y-axis direction) of the housing 10. The upper frame front surface portion 22a is a wall portion located on the front side of the housing 10, and is a wall portion that faces the suction panel 17 when the suction panel 17 is attached to the housing 10. The upper frame front surface portion 22a is a wall portion that extends in the left-to-right direction (X-axis direction) of the housing 10, and also extends in the up-and-down direction (Z-axis direction) of the housing 10.

The upper frame top surface portion 22b is a wall portion extending in the left-right direction (X-axis direction) of the housing 10 along the upper edge of the upper frame front surface portion 22a, and is also a wall portion formed to extend in the front-to-back direction (Y-axis direction) of the housing 10 from the upper frame front surface portion 22a toward the interior of the housing 10.

The upper frame bottom surface 22c is a wall portion provided so as to extend in the left-right direction (X-axis direction) of the housing 10 along the lower edge of the upper frame front surface 22a, and is also a wall portion formed so as to extend in the front-rear direction (Y-axis direction) of the housing 10 from the upper frame front surface 22a toward the interior of the housing 10. When the filter panel 70 is attached to the housing 10, the upper frame bottom surface 22c faces the panel upper wall portion 70b (see Figure 38) of the filter panel 70, which will be described later. The upper frame bottom surface 22c is a wall portion provided between the upper frame protruding wall portion 22d and the upper frame front surface 22a, and forms a step between the upper frame protruding wall portion 22d and the upper frame front surface 22a.

The upper frame bottom surface 22c and the upper frame top surface 22b are formed to face each other in the vertical direction (Z-axis direction) of the housing 10. As shown in Figure 6, the vertical cross-sectional shape of the upper frame front surface 22a, the upper frame bottom surface 22c, and the upper frame top surface 22b is formed into a U-shape tilted at 90 degrees.

The upper frame protruding wall portion 22d is a wall portion that protrudes downward from the upper frame bottom surface portion 22c. The upper frame protruding wall portion 22d is a wall portion that forms a wall facing the front-to-rear direction of the housing 10, and is a wall portion that faces the filter panel 70 in the front-to-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10. More specifically, the upper frame protruding wall portion 22d is a wall portion that faces the filter frame 71 of the filter panel 70 in the front-to-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10.

The upper frame protruding wall portion 22d is provided on the upper frame bottom surface portion 22c along the end of the upper frame bottom surface portion 22c located on the opposite side of the upper frame front surface portion 22a. The upper frame protruding wall portion 22d is a wall portion that extends in the left-right direction (X-axis direction) of the housing 10, and also in the up-down direction (Z-axis direction) of the housing 10. The upper frame protruding wall portion 22d is located on the inner side of the housing 10 relative to the upper frame front surface portion 22a.

Figure 7 is a partially enlarged view of the lower frame portion 23 of the housing 10. Figure 8 is a schematic side view of the lower frame portion 23 of the housing 10. The lower frame portion 23 will be explained using Figures 7, 8, and 3. The lower frame portion 23 is a member that is elongated in the left-right direction (X-axis direction) of the housing 10. The lower frame portion 23 is a member that forms the lower part of the opening frame portion 21. The lower frame portion 23 has a lower frame bottom surface portion 23a, a lower frame front wall portion 23b, and a lower frame protruding wall portion 23c.

The lower frame bottom portion 23a is a plate-shaped member that extends in the left-right direction (X-axis direction) of the housing 10, and also in the front-to-back direction (Y-axis direction) of the housing 10.

The lower frame bottom surface portion 23a is the portion on which the filter panel 70 is placed when the filter panel 70 is attached to the housing 10. When the filter panel 70 is attached to the housing 10, the lower frame bottom surface portion 23a abuts against the panel bottom wall portion 70e (see Figure 38) of the filter panel 70, which will be described later.

The lower frame front wall portion 23b is a wall portion that protrudes upward from the lower frame bottom surface portion 23a. The lower frame front wall portion 23b is a wall portion that rises from the end portion on the front side of the lower frame bottom surface portion 23a. The lower frame front wall portion 23b is inclined with respect to the lower frame bottom surface portion 23a, with one surface facing the outside of the housing 10 and downward of the housing 10, and the other surface facing the inside of the housing 10 and upward of the housing 10.

The lower frame front wall portion 23b is provided on the lower frame bottom portion 23a along the end of the lower frame bottom portion 23a located opposite the lower frame protruding wall portion 23c. The lower frame front wall portion 23b is a wall portion that extends in the left-right direction (X-axis direction) of the housing 10, as well as in the up-down direction (Z-axis direction) and the front-to-back direction (Y-axis direction) of the housing 10. The lower frame front wall portion 23b is located on the outer side of the housing 10 relative to the lower frame protruding wall portion 23c.

The lower frame front wall portion 23b is a wall portion located in front of the filter panel 70 in the fore-and-aft direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10. Because the lower frame front wall portion 23b is inclined relative to the lower frame bottom surface portion 23a, it is easier for the user to place the filter panel 70 on the lower frame bottom surface portion 23a compared to when the filter panel 70 is perpendicular to the lower frame bottom surface portion 23a.

The lower frame protruding wall portion 23c is a wall portion that protrudes upward from the lower frame bottom surface portion 23a. The lower frame protruding wall portion 23c is a wall portion that forms a wall facing the front-to-rear direction of the housing 10, and is a wall portion that faces the filter panel 70 in the front-to-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10. More specifically, the lower frame protruding wall portion 23c is a wall portion that faces the filter frame 71 of the filter panel 70 in the front-to-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10.

The lower frame protruding wall portion 23c is provided on the lower frame bottom surface portion 23a along the end of the lower frame bottom surface portion 23a located opposite the lower frame front wall portion 23b. The lower frame protruding wall portion 23c is a wall portion that extends in the left-right direction (X-axis direction) of the housing 10, and also in the up-down direction (Z-axis direction) of the housing 10. The lower frame protruding wall portion 23c is located on the inner side of the housing 10 relative to the lower frame front wall portion 23b.

Figure 9 is a schematic diagram conceptually showing a cross section of the left frame portion 24. The left frame portion 24 will be explained using Figures 9 and 3. The left frame portion 24 is a member that is elongated in the vertical direction (Z-axis direction) of the housing 10. The left frame portion 24 is a member that forms the left side portion of the opening frame portion 21. The left frame portion 24 has a left frame front portion 24a, a left frame side wall portion 24b, and a left frame protruding wall portion 24c.

The left frame front surface portion 24a is a wall portion that forms a wall facing the front-to-back direction (Y-axis direction) of the housing 10. The left frame front surface portion 24a is a wall portion located on the front side of the housing 10, and is a wall portion that faces the suction panel 17 when the suction panel 17 is attached to the housing 10. The left frame front surface portion 24a is a wall portion that extends in the left-to-right direction (X-axis direction) of the housing 10, and also extends in the up-and-down direction (Z-axis direction) of the housing 10.

The left frame side wall 24b is a wall that extends in the vertical direction (Z-axis direction) of the housing 10 along the right side edge of the left frame front surface 24a, and is a wall that is formed to extend in the front-to-rear direction (Y-axis direction) of the housing 10 from the left frame front surface 24a toward the interior of the housing 10. The cross-sectional shape of the left frame front surface 24a and the left frame side wall 24b is L-shaped when viewed from the top of the housing 10 with the left side of the housing 10 facing upward.

The left frame side wall 24b is a wall that forms a wall facing the left-right direction (X-axis direction) of the housing 10, and is a wall that faces the filter panel 70 in the left-right direction (X-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10. More specifically, the left frame side wall 24b is a wall that faces the filter frame 71 of the filter panel 70 in the left-right direction (X-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10. When the filter panel 70 is attached to the housing 10, the left frame side wall 24b faces the panel left wall 70c (see Figure 38) of the filter panel 70, which will be described later.

The left frame protruding wall 24c is a wall that protrudes laterally to the right from the left frame side wall 24b. The left frame protruding wall 24c is a wall that forms a wall facing the front-to-rear direction (Y-axis direction) of the housing 10, and is a wall that faces the filter panel 70 in the front-to-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10. More specifically, the left frame protruding wall 24c is a wall that faces the filter frame 71 of the filter panel 70 in the front-to-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10.

The left frame protruding wall portion 24c is provided on the left frame side wall portion 24b along the end of the left frame side wall portion 24b located opposite the left frame front surface portion 24a. The left frame protruding wall portion 24c is a wall portion that extends in the left-right direction (X-axis direction) of the housing 10, and also in the up-down direction (Z-axis direction) of the housing 10.

The left frame protruding wall portion 24c is located on the interior side of the housing 10 relative to the left frame front surface portion 24a. The left frame side wall portion 24b is a wall portion provided between the left frame front surface portion 24a and the left frame protruding wall portion 24c, and forms a step between the left frame front surface portion 24a and the left frame protruding wall portion 24c. The cross-sectional shapes of the left frame protruding wall portion 24c and the left frame side wall portion 24b are L-shaped when viewed from the top of the housing 10 with the right side of the housing 10 facing upward.

Figure 10 is a schematic diagram conceptually showing a cross section of the right frame portion 25. The right frame portion 25 will be explained using Figure 10. The right frame portion 25 is a member that is elongated in the vertical direction (Z-axis direction) of the housing 10. The right frame portion 25 is a member that forms the right side portion of the opening frame portion 21. The right frame portion 25 has a right frame front surface portion 25a, a right frame side wall portion 25b, and a right frame protruding wall portion 25c.

The right frame front surface portion 25a is a wall portion that forms a wall facing the front-to-back direction (Y-axis direction) of the housing 10. The right frame front surface portion 25a is a wall portion located on the front side of the housing 10, and is a wall portion that faces the suction panel 17 when the suction panel 17 is attached to the housing 10. The right frame front surface portion 25a is a wall portion that extends in the left-to-right direction (X-axis direction) of the housing 10, and also extends in the up-and-down direction (Z-axis direction) of the housing 10.

The right frame side wall 25b is a wall that extends in the vertical direction (Z-axis direction) of the housing 10 along the left side edge of the right frame front surface 25a, and is a wall that is formed to extend in the front-to-rear direction (Y-axis direction) of the housing 10 from the right frame front surface 25a toward the interior of the housing 10. The cross-sectional shapes of the right frame front surface 25a and the right frame side wall 25b are formed into an inverted L-shape when viewed from the top of the housing 10 with the right side of the housing 10 facing upward.

The right frame side wall 25b is a wall that forms a wall facing the left-right direction (X-axis direction) of the housing 10, and is a wall that faces the filter panel 70 in the left-right direction (X-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10. More specifically, the right frame side wall 25b is a wall that faces the filter frame 71 of the filter panel 70 in the left-right direction (X-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10. When the filter panel 70 is attached to the housing 10, the right frame side wall 25b faces the panel right wall 70d (see Figure 38) of the filter panel 70, which will be described later.

The right frame protruding wall portion 25c is a wall portion that protrudes laterally to the left from the right frame side wall portion 25b. The right frame protruding wall portion 25c is a wall portion that forms a wall facing the front-to-rear direction (Y-axis direction) of the housing 10, and is a wall portion that faces the filter panel 70 in the front-to-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10. More specifically, the right frame protruding wall portion 25c is a wall portion that faces the filter frame 71 of the filter panel 70 in the front-to-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10.

The right frame protruding wall portion 25c is provided on the right frame side wall portion 25b along the end of the right frame side wall portion 25b located opposite the right frame front surface portion 25a. The right frame protruding wall portion 25c is a wall portion that extends in the left-right direction (X-axis direction) of the housing 10, and also in the up-down direction (Z-axis direction) of the housing 10.

The right frame protruding wall portion 25c is located on the inner side of the housing 10 relative to the right frame front surface portion 25a. The right frame side wall portion 25b is a wall portion provided between the right frame front surface portion 25a and the right frame protruding wall portion 25c, and forms a step between the right frame front surface portion 25a and the right frame protruding wall portion 25c. The cross-sectional shapes of the right frame protruding wall portion 25c and the right frame side wall portion 25b are formed into an inverted L-shape when viewed from the top of the housing 10 with the left side of the housing 10 facing upward.

Figure 11 is a perspective view of the filter fixing portion 80 of the air conditioning apparatus 100 according to the embodiment. Figure 12 is a plan view of another example shape of the filter fixing portion 80, viewed in the axial direction of the shaft portion 86. As shown in Figures 2 to 5, the intake section 20 of the air conditioning apparatus 100 has a filter fixing portion 80 that fixes the filter panel 70. The air conditioning apparatus 100 has the filter fixing portion 80 as a movable part for fixing the filter panel 70. The filter fixing portion 80 will be explained using Figures 11 and 12.

The filter fixing portion 80 supports the filter panel 70 from the outside of the housing 10 to prevent the filter panel 70 from falling outside the housing 10 when the filter panel 70 is installed in the opening frame portion 21 of the suction portion 20. The filter panel 70 is fixed to the opening frame portion 21 of the suction portion 20 by the filter fixing portion 80.

The filter fixing portion 80 has a plate-shaped filter support portion 81 and a shaft portion 86 that passes through the filter support portion 81 and supports the filter support portion 81 so that it can rotate freely. The filter support portion 81 is a portion of the filter fixing portion 80 that supports the filter panel 70 from the outside of the housing 10 to prevent the filter panel 70 from falling outside the housing 10 when the filter panel 70 is installed in the opening frame portion 21 of the suction portion 20. When at least one filter panel 70 is installed in the suction portion 20, the filter support portion 81 faces all of the installed filter panels 70 from the outside of the housing 10.

The filter support part 81 is formed in a plate shape. The filter support part 81 is, for example, sheet metal. Note that the filter support part 81 is not limited to sheet metal and may be formed from other materials. An opening 84 is formed in the filter support part 81. The opening 84 is a hole that passes through the filter support part 81. A shaft part 86 is inserted into the opening 84. The filter support part 81 is supported at its upper part by the shaft part 86 so that it can rotate freely. The filter support part 81 is suspended by the shaft part 86.

When viewed in the axial direction of the shaft 86, the filter support part 81 is formed in a triangular shape. The filter support part 81 has an opening 84 formed at one vertex of the triangle. The shaft 86 passes through the vertex of the triangular filter support part 81. Note that the filter support part 81 is not limited to being formed in a triangular shape and may be formed in other shapes. For example, as shown in Figure 12, the filter support part 81 may be formed in an upside-down T-shape. As shown in Figures 11 and 12, the filter support part 81 is formed so that the lower end portion is larger than the upper end portion.

As shown in FIG. 11 , the width in the left-right direction (X-axis direction) at the lower end 81a of the filter support part 81 is referred to as lower end width W1, and the width in the left-right direction (X-axis direction) at the opening 84 of the filter support part 81 is referred to as shaft width W2. Furthermore, the width in the left-right direction (X-axis direction) at the upper end 81b of the filter support part 81 is referred to as upper end width W3. The filter support part 81 is formed so that the lower end width W1 is larger than the shaft width W2 (lower end width W1 > shaft width W2). Furthermore, the filter support part 81 is formed so that the lower end width W1 is larger than the upper end width W3 (lower end width W1 > upper end width W3). The filter support part 81 is formed so that the lower part of the filter support part 81 has a larger plate width than the upper part of the filter support part 81.

The opening 84 is formed at the apex of the triangle, and the filter support part 81 is formed so that its lower end is larger than its upper end. Therefore, the weight of the lower part of the filter support part 81 relative to the shaft 86 is heavier than the weight of the upper part, and so the filter support part 81 is supported by the shaft 86 so that the lower end 81a is always positioned lower than the upper end 81b due to gravity. The filter support part 81 can be rotated around the shaft 86, but if, for example, the user releases the rotated filter support part 81, the filter support part 81 will stop with the lower end 81a positioned below the shaft 86.

The filter support portion 81 has a support plate portion 82 and a protrusion portion 83. The support plate portion 82 is formed in a plate shape. The support plate portion 82 is formed, for example, in a flat plate shape, but may have uneven portions. The support plate portion 82 is the portion that faces the filter panel 70 from the outside when the filter panel 70 is installed in the opening frame portion 21 of the suction portion 20 and the user is not rotating the filter support portion 81. The support plate portion 82 is the portion that supports the filter panel 70 from the outside when the filter support portion 81 is suspended from the shaft portion 86.

The protrusion 83 is a portion that protrudes from the support plate portion 82 in the axial direction of the shaft portion 86. The protrusion 83 is provided so as to extend along the lower end portion 81a. The protrusion 83 is provided so as to protrude toward the outside of the housing 10. The protrusion 83 is provided on the surface opposite to the surface that faces the filter panel 70 when the filter panel 70 is installed in the opening frame portion 21 of the suction portion 20. The protrusion 83 is formed, for example, by being bent relative to the support plate portion 82. Note that the protrusion 83 is not an essential component of the filter support portion 81. The filter support portion 81 may be composed of only the support plate portion 82, without the protrusion 83.

By having the protrusion 83, the filter support part 81 can be grasped by the user, making it easier for the user to rotate the filter support part 81 compared to when the filter support part 81 does not have the protrusion 83. Furthermore, by having the protrusion 83, the weight of the lower end part 81a of the filter support part 81 is heavier compared to when the filter support part 81 does not have the protrusion 83, so even when the filter support part 81 is rotated, the lower end part 81a is more likely to return to a position below the shaft part 86. Furthermore, by having the protrusion 83, the strength of the filter support part 81 can be ensured compared to when the filter support part 81 does not have the protrusion 83.

The shaft portion 86 supports the filter support portion 81 so that it can rotate freely. The shaft portion 86 fixes the filter support portion 81 to the opening frame portion 21 of the suction portion 20. The shaft portion 86 is, for example, a screw. Note that the shaft portion 86 is not limited to a screw, and can be, for example, a bolt and nut, or any other device that can support the filter support portion 81 so that it can rotate freely. The shaft portion 86 may also be a shoulder screw.

The shaft portion 86 has a head portion 87 and a threaded portion 88. The head portion 87 is formed so that its diameter is larger than the opening diameter of the opening 84 to prevent the filter support portion 81 from coming off the shaft portion 86. The threaded portion 88 has a threaded portion and a spiral groove. The threaded portion 88 is screwed into the opening frame portion 21 and fixed. The diameter of the threaded portion 88 is smaller than the opening diameter of the opening 84.

Figure 13 is an enlarged schematic diagram of part A of the air conditioning device 100 shown in Figure 4. Figure 14 is a schematic diagram of the filter fixing part 80 shown in Figure 13 viewed in the axial direction of the shaft part 86. As shown in Figures 13 and 14, the filter fixing part 80 is attached to the opening frame part 21. For example, the filter fixing part 80 is attached to the upper frame part 22. More specifically, the shaft part 86 of the filter fixing part 80 is attached to the upper frame front part 22a of the upper frame part 22. Note that the attachment position of the shaft part 86 is not limited to the upper frame front part 22a, and it may be attached, for example, to the extension part 40 (see Figure 17) described below.

The filter fixing portion 80 is formed to be large enough to cover a portion of the filter panel 70 when the filter support portion 81 is suspended from the shaft portion 86. As shown in Figures 13 and 14, the filter support portion 81 of the filter fixing portion 80 supports the filter panel 70 from the outside of the housing 10 to prevent the filter panel 70 from falling outside the housing 10 when the filter panel 70 is installed in the opening frame portion 21 of the suction portion 20. The filter support portion 81 of the filter fixing portion 80 covers the filter panel 70 from the outside of the housing 10 (see Figure 4).

As shown in Figures 13 and 14, the top of the filter panel 70 is fixed by a filter support part 81. In the example shown in Figure 14, two filter panels 70 are installed in the opening frame part 21. When two filter panels 70 are installed in the opening frame part 21, the filter fixing part 80 fixes the top corner parts of each filter panel 70. The lower and both side parts of the filter fixing part 80 fix the top corner parts of each filter panel 70.

Even when two filter panels 70 are installed in the opening frame portion 21, the air conditioning unit 100 does not need to have two filter fixing portions 80; the two filter panels 70 can be fixed to the opening frame portion 21 using a single filter fixing portion 80.

15 is another schematic view of the filter fixing part 80 shown in FIG. 13 as viewed in the axial direction of the shaft part 86. In the example shown in FIG. 15, one filter panel 70 is installed in the opening frame part 21.
When one filter panel 70 is installed in the opening frame 21, the filter fixing part 80 fixes the upper part of the filter panel 70. In the filter fixing part 80, the lower part of the filter support part 81 fixes the upper part of the filter panel 70.

Figure 16 is a perspective view of the extension portion 40 of the air conditioning apparatus 100 according to the embodiment. Figure 17 is an enlarged schematic diagram of part A in Figure 4 when the extension portion 40 is provided in the air conditioning apparatus 100 according to the embodiment. Figure 18 is a schematic diagram of the filter fixing portion 80 shown in Figure 17 viewed in the axial direction of the shaft portion 86. The opening frame portion 21 may include the extension portion 40.

The air conditioning device 100 may have an extension portion 40 to which the filter fixing portion 80 is attached. The extension portion 40 is a component that is attached to the upper frame portion 22 or the support portion 90 described below. As shown in FIG. 16 , the extension portion 40 has a bridging portion 41, an inner wall portion 42, an outer wall portion 43, and a fixing member 45. The cross section of the extension portion 40 along the axial direction of the shaft portion 86 is formed in a U-shape.

The bridge portion 41 is formed in a flat plate shape. The bridge portion 41 is formed to extend in the front-to-rear direction (Y-axis direction) of the housing 10, i.e., in the axial direction of the shaft portion 86. The bridge portion 41 is not limited to a flat plate shape as long as it is a member that extends in the front-to-rear direction (Y-axis direction) of the housing 10, and may be, for example, a shape with uneven portions, a rod shape, or other shapes.

The inner wall portion 42 is a wall portion that rises from the edge portion of the bridge portion 41 and is located inside the housing 10 in the front-to-rear direction (Y-axis direction) of the housing 10. The inner wall portion 42 is formed to extend upward or downward relative to the bridge portion 41. As shown in Figures 17 and 18, the inner wall portion 42 is fixed to the upper frame protruding wall portion 22d of the upper frame portion 22 by a fixing member 45. A through hole 42a is formed in the inner wall portion 42, through which the fixing member 45 is inserted. Note that the fixing position of the inner wall portion 42 is not limited to the upper frame protruding wall portion 22d, and it may be fixed, for example, to a support portion 90 (see Figure 36) described below.

The outer wall portion 43 is a wall portion that rises from the edge portion of the bridge portion 41 and is a wall portion that is located on the exterior side of the housing 10 in the front-to-rear direction (Y-axis direction) of the housing 10. The outer wall portion 43 is formed on the opposite side of the inner wall portion 42 across the bridge portion 41 in the front-to-rear direction (Y-axis direction) of the housing 10. The outer wall portion 43 is formed to extend upward or downward relative to the bridge portion 41. A filter fixing portion 80 is attached to the outer wall portion 43. More specifically, a through-hole 43a is formed in the outer wall portion 43, and the shaft portion 86 of the filter fixing portion 80 is fixed therein.

The fixing member 45 is a component that fixes the extension portion 40 to the upper frame portion 22 or the support portion 90 described below. The fixing member 45 is, for example, a screw, but is not limited to a screw and may be other components such as a bolt and nut. Furthermore, the method of fixing the extension portion 40 to the upper frame portion 22 or the support portion 90 described below may be welding or magnetic force. Note that while Figures 16 to 18 illustrate a method of fixing the inner wall portion 42 of the extension portion 40 to the upper frame portion 22, other methods may also be used to fix the extension portion 40 to the upper frame portion 22. For example, the extension portion 40 may be fixed to the upper frame portion 22 by fixing the bridge portion 41 to the upper frame bottom surface portion 22c using the fixing member 45. The extension portion 40 may be fixed to the upper frame portion 22 by fixing the bridge portion 41 to the upper frame top surface portion 22b using the fixing member 45. In these cases, the extension portion 40 does not need to have the inner wall portion 42.

Figure 19 is an enlarged schematic diagram of the connection portion between the filter fixing portion 80 and the opening frame portion 21 of the air conditioning apparatus 100 according to the embodiment. Figure 19 is an enlarged schematic diagram of part B in Figure 13 or part C in Figure 17. The opening frame portion 21 has an opening tip portion 27. As shown in Figure 13, when the filter fixing portion 80 is attached to the upper frame front surface portion 22a of the opening frame portion 21, the opening tip portion 27 is formed on the upper frame front surface portion 22a. Also, as shown in Figure 17, when the filter fixing portion 80 is attached to the extension portion 40 of the opening frame portion 21, the opening tip portion 27 is formed on the outer wall portion 43 of the extension portion 40.

The open tip 27 is the portion to which the shaft 86 is screwed. The open tip 27 has been burred to form a flange. The open tip 27 is part of the wall that makes up the suction section 20, and is formed into a cylindrical shape with a raised edge around the hole. At least a portion of the open tip 27 is formed so that the opening diameter decreases toward the tip of the opening.

As shown in Figure 19, when the shaft portion 86 is screwed to the open tip portion 27, the open tip portion 27 is inserted into the opening 84 formed in the filter support portion 81 and is positioned inside the opening 84. The open tip portion 27 passes through the opening 84 and penetrates the filter support portion 81. The filter support portion 81 is supported by the shaft portion 86 via the open tip portion 27. In other words, the open tip portion 27 is positioned between the filter support portion 81 and the shaft portion 86. The shaft portion 86 is inserted into and fixed in the hole 27a at the tip of the open tip portion 27. The shaft portion 86 is screwed to the open tip portion 27, which has been subjected to burring.

(Rotational Operation of Filter Fixing Portion 80)
Fig. 20 is a schematic diagram showing the rotation angle of the filter fixing portion 80 when the filter panel 70 is attached or detached in the air conditioning apparatus 100 according to the embodiment. Fig. 21 is a schematic diagram showing the rotation angle of the filter fixing portion 80L when the filter panel 70 is attached or detached in the air conditioning apparatus according to the comparative example. Fig. 22 is a schematic diagram showing the rotation angle of the filter fixing portion 80L when the filter panel 70 is attached or detached in the air conditioning apparatus according to the comparative example. Figs. 20 to 22 show an embodiment in which the air conditioning apparatus 100 has two filter panels 70.

As shown in Figures 20 to 22, when a user attaches two filter panels 70 to the opening frame portion 21, the user attaches the filter panels 70 one by one. Also, when a user removes two filter panels 70 from the opening frame portion 21, the user removes the filter panels 70 one by one. The following explanation uses Figures 20 to 22 to explain the rotation of the filter fixing portion 80, etc. when removing the filter panel 70, but the same applies to the rotation of the filter fixing portion 80, etc. when attaching the filter panel 70.

As shown in Figure 20, if the filter support portion 81 of the filter fixing portion 80 is formed in a triangular shape, such that the lower end portion is larger than the upper end portion, the user can rotate the filter support portion 81 as follows. First, when removing the left filter panel 70, the user can rotate the filter support portion 81 counterclockwise by an angle α from the state in which the filter support portion 81 is hanging from the shaft portion 86 under its own weight. Next, when removing the right filter panel 70, the user can rotate the filter support portion 81 clockwise by an angle α from the state in which the filter support portion 81 is hanging from the shaft portion 86 under its own weight. The angle α is approximately 30 degrees, as shown in Figure 20.

As shown in FIG. 21 , when the filter support portion 81L of the filter fixing portion 80L according to the comparative example is formed in a square shape, such that the lower and upper portions are the same size, the user simply rotates the filter support portion 81L as follows. First, when removing the left filter panel 70, the user simply rotates the filter support portion 81 counterclockwise an angle β1 from the state in which the filter support portion 81 is suspended by its own weight from the shaft portion 86. Next, when removing the right filter panel 70, the user simply rotates the filter support portion 81 clockwise an angle β1 from the state in which the filter support portion 81 is suspended by its own weight from the shaft portion 86. The angle β1 is an angle of 90 degrees or more, as shown in FIG. 21 .

As shown in FIG. 22 , when the filter support portion 81L of the filter fixing portion 80L according to the comparative example is formed in a shape such that the lower end portion and the upper end portion are the same size, such as a vertically elongated rectangle, the user can rotate the filter support portion 81L as follows: First, when removing the left filter panel 70, the user can rotate the filter support portion 81 counterclockwise by an angle β2 from the state in which the filter support portion 81 is suspended by its own weight from the shaft portion 86. Next, when removing the right filter panel 70, the user can rotate the filter support portion 81 clockwise by an angle β2 from the state in which the filter support portion 81 is suspended by its own weight from the shaft portion 86. The angle β2 is equal to or greater than 90 degrees, as shown in FIG. 22 .

As shown in Figure 20, when removing the filter panel 70, the user rotates the filter support portion 81 by angle α. As shown in Figures 21 and 22, when removing the filter panel 70, the user rotates the filter support portion 81L by angle β1 or angle β2. As shown in Figures 20 to 22, angle α is smaller than angles β1 and β2.

A filter support part 81, whose lower end portion is larger than its upper end portion, rotates by a smaller angle when attaching or detaching the filter panel 70 compared to a filter support part 81L, whose lower end portion and upper end portion are the same size. The filter fixing part 80 according to the embodiment requires less movement of the filter support part 81 when attaching or detaching the filter panel 70 compared to the filter fixing part 80L according to the comparative example. Therefore, the air conditioning unit 100 can easily remove the filter panel 70 from the housing 10 and attach the filter panel 70 to the housing 10.

Figure 23 is a schematic diagram showing the rotation angle of the filter fixing portion 80 when the filter panel 70 is attached or detached in the air conditioning apparatus 100 according to the embodiment. Figure 24 is a schematic diagram showing the rotation angle of the filter fixing portion 80L when the filter panel 70 is attached or detached in the air conditioning apparatus 100 according to the comparative example. Figures 23 to 24 show an embodiment in which the air conditioning apparatus 100 has one filter panel 70.

As shown in Figure 23, the filter fixing part 80 requires the user to rotate the filter support part 81 by angle α1 when attaching or removing the filter panel 70. As shown in Figure 24, the filter fixing part 80L shown in the comparative example requires the user to rotate the filter support part 81L by angle β3 when attaching or removing the filter panel 70. As shown in Figures 23 and 24, angle α1 is close to 90 degrees, and angle β3 is close to 180 degrees. In other words, angle α1 is smaller than angle β3.

Even when the filter fixing part 80 fixes only one filter panel 70, the filter fixing part 80 according to the embodiment requires less movement of the filter support part 81 when attaching or detaching the filter panel 70 compared to the filter fixing part 80L according to the comparative example. Therefore, the air conditioning device 100 can easily remove the filter panel 70 from the housing 10 and attach the filter panel 70 to the housing 10.

Figure 25 is a plan view of the support pillar 90 of the air conditioning apparatus 100 according to the embodiment. Figure 26 is a side view of the support pillar 90 of the air conditioning apparatus 100 according to the embodiment. Figure 25 is a plan view of the support pillar 90 as viewed in the front-to-back direction (Y-axis direction) of the housing 10, and Figure 26 is a side view of the support pillar 90 as viewed in the left-to-right direction (X-axis direction) of the housing 10. The opening frame 21 may include the support pillar 90.

The support pillar 90 is a component attached to the upper frame 22 and the lower frame 23. The support pillar 90 is formed in the shape of a long pillar, spans between the upper frame 22 and the lower frame 23, and is detachably attached to the upper frame 22 and the lower frame 23. The support pillar 90 is a component that supports the filter panel 70 from inside the housing 10. The filter panel 70 is positioned between the filter fixing portion 80 and the support pillar 90 in the direction of flow of air drawn into the suction portion 20.

When two filter panels 70 are placed in the suction section 20, the support section 90 covers the space between the two filter panels 70 from inside the housing 10 when the suction section 20 is viewed from outside the housing 10, and supports the two filter panels 70 from inside the housing 10.

When the size of the housing 10 increases, the intake section 20 may use multiple filter panels 70 instead of a single large filter panel 70. When multiple filter panels 70 are arranged in the opening frame section 21 of the housing 10, the support section 90 covers the spaces between the filter panels 70 from the inside of the housing 10. When the air conditioning device 100 has the support section 90, the intake section 20 is arranged in the following order from the inside to the outside of the housing 10, with the support section 90, filter panel 70, and filter fixing section 80 arranged so that each component faces each other in the front-to-back direction of the housing 10.

The support pillar 90 is a long member extending in the vertical direction (Z-axis direction) of the housing 10, and has a U-shaped cross section perpendicular to the longitudinal direction. The support pillar 90 has a plate-shaped front surface 91, and left and right side surfaces 92 and 93 that extend from both sides of the front surface 91 toward the interior of the housing 10, face each other, and are longer than the front surface 91 along the longitudinal direction (Z-axis direction) of the support pillar 90. Note that the cross section perpendicular to the longitudinal direction of the support pillar 90 is U-shaped, but is not limited to this shape. For example, the support pillar 90 may be formed in a cylindrical shape with at least a hollow portion.

The front surface portion 91 is a wall portion that forms a wall facing the front-to-rear direction (Y-axis direction) of the housing 10. The front surface portion 91 is a wall portion located on the front side of the housing 10 and faces the filter panel 70 when the filter panel 70 is attached to the housing 10. The front surface portion 91 is a wall portion that extends in the up-down direction (Z-axis direction) of the housing 10 and also in the left-to-right direction (X-axis direction) of the housing 10. The length of the front surface portion 91 in the longitudinal direction (Z-axis direction) is shorter than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c in the up-down direction (Z-axis direction) of the housing 10. The front surface portion 91 is formed in a flat plate shape, but may also be formed in a curved plate shape. For example, the front surface portion 91 may include an arc-shaped portion in a cross section perpendicular to the longitudinal direction (Z-axis direction).

The right side surface 93 is a wall portion that extends in the vertical direction (Z-axis direction) of the housing 10 along the right side edge of the front surface 91, and is also a wall portion that is formed to extend in the front-to-rear direction (Y-axis direction) of the housing 10 from the front surface 91 toward the interior of the housing 10. The left side surface 92 and the right side surface 93 are formed to face each other in the left-to-right direction (X-axis direction) of the housing 10.

25 and 26, the right side surface portion 93 has a right-wall upper claw portion 95 and a right-wall lower claw portion 97. The right-wall upper claw portion 95 is provided on the upper end portion 90a of the support portion 90. The right-wall upper claw portion 95 is a portion that protrudes upward compared to the upper edge portion 91a of the front surface portion 91. The right-wall upper claw portion 95 is provided on the right side surface portion 93 so as to be biased toward the opposite side of the front surface portion 91. Therefore, in the front-to-rear direction (Y-axis direction) of the housing 10, a step is formed between the side edge of the right-wall upper claw portion 95 on the front surface portion 91 side and the plate surface of the front surface portion 91. In addition, in the up-down direction (Z-axis direction) of the housing 10, a step is formed between the upper end of the right-wall upper claw portion 95 and the upper edge portion 91a of the front surface portion 91.

The right-wall lower claw portion 97 is provided on the lower end 90b of the support portion 90. The right-wall lower claw portion 97 is a portion that protrudes downward compared to the lower edge 91b of the front surface portion 91. The right-wall lower claw portion 97 is provided on the right side surface portion 93 so as to be biased toward the opposite side of the front surface portion 91. Therefore, in the front-to-rear direction (Y-axis direction) of the housing 10, a step is formed between the side edge of the right-wall lower claw portion 97 on the front surface portion 91 side of the right side surface portion 93 and the plate surface of the front surface portion 91. In addition, in the up-and-down direction (Z-axis direction) of the housing 10, a step is formed between the lower end of the right-wall lower claw portion 97 and the lower edge 91b of the front surface portion 91.

The left side surface portion 92 has a bilaterally symmetrical structure to the right side surface portion 93 shown in Figure 26. The left side surface portion 92 is a wall portion that extends in the vertical direction (Z-axis direction) of the housing 10 along the left side edge of the front surface portion 91, and is also a wall portion that is formed to extend in the front-to-rear direction (Y-axis direction) of the housing 10 from the front surface portion 91 toward the interior of the housing 10.

25, the left side surface portion 92 has a left wall upper claw portion 94 and a left wall lower claw portion 96. The left wall upper claw portion 94 is provided on the upper end portion 90a of the support portion 90. The left wall upper claw portion 94 is a portion that protrudes upward compared to the upper edge portion 91a of the front surface portion 91. The left wall upper claw portion 94 is provided on the left side surface portion 92 so as to be biased toward the opposite side of the front surface portion 91. Therefore, in the front-to-rear direction (Y-axis direction) of the housing 10, a step is formed between the side edge of the left wall upper claw portion 94 on the front surface portion 91 side and the plate surface of the front surface portion 91. In addition, in the up-down direction (Z-axis direction) of the housing 10, a step is formed between the upper end of the left wall upper claw portion 94 and the upper edge portion 91a of the front surface portion 91.

The left-hand side claw portion 96 is provided on the lower end 90b of the support portion 90. The left-hand side claw portion 96 is a portion that protrudes downward compared to the lower edge 91b of the front surface portion 91. The left-hand side claw portion 96 is provided on the left side surface portion 92 so as to be biased toward the opposite side of the front surface portion 91. Therefore, in the front-to-rear direction (Y-axis direction) of the housing 10, a step is formed between the side edge of the left-hand side claw portion 96 on the front surface portion 91 side and the plate surface of the front surface portion 91. In addition, in the up-and-down direction (Z-axis direction) of the housing 10, a step is formed between the lower end of the left-hand side claw portion 96 and the lower edge 91b of the front surface portion 91.

As shown in Figure 25, upper claw portions 95a consisting of left wall upper claw portions 94 and right wall upper claw portions 95 are formed on the upper parts of the left side surface portion 92 and right side surface portion 93, and protrude upward beyond the upper edge portion 91a of the front surface portion 91. In addition, lower claw portions 97a consisting of left wall lower claw portions 96 and right wall lower claw portions 97 are formed on the lower parts of the left side surface portion 92 and right side surface portion 93, and protrude downward beyond the lower edge portion 91b of the front surface portion 91.

As shown in Figure 26, in the longitudinal direction (Z-axis direction) of the support portion 90, the upper claw length T1, which is the length of the right wall upper claw portion 95, is longer than the lower claw length T2, which is the length of the right wall lower claw portion 97. The upper claw length T1 is the protruding length of the right wall upper claw portion 95, and is the length between the position of the upper edge 91a of the front surface portion 91 in the longitudinal direction (Z-axis direction) of the support portion 90 and the position of the upper end of the right wall upper claw portion 95. The lower claw length T2 is the protruding length of the right wall lower claw portion 97, and is the length between the position of the lower edge 91b of the front surface portion 91 in the longitudinal direction (Z-axis direction) of the support portion 90 and the position of the lower end of the right wall lower claw portion 97.

Similarly, in the longitudinal direction (Z-axis direction) of the support portion 90, the upper claw length T1, which is the length of the left-wall upper claw portion 94, is longer than the lower claw length T2, which is the length of the left-wall lower claw portion 96 (not shown). The upper claw length T1 is also the protruding length of the left-wall upper claw portion 94, and is the length between the position of the upper edge 91a of the front surface portion 91 in the longitudinal direction (Z-axis direction) of the support portion 90 and the position of the upper end of the left-wall upper claw portion 94. The lower claw length T2 is the protruding length of the left-wall lower claw portion 96, and is the length between the position of the lower edge 91b of the front surface portion 91 in the longitudinal direction (Z-axis direction) of the support portion 90 and the position of the lower end of the left-wall lower claw portion 96. The support portion 90 is formed so that the length of the upper claw portion 95a in the longitudinal direction (Z-axis direction) is longer than the length of the lower claw portion 97a.

The length between the upper end of the left-wall upper claw portion 94 and the lower end of the left-wall lower claw portion 96 in the longitudinal direction (Z-axis direction) of the support portion 90 is longer than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c in the vertical direction (Z-axis direction) of the housing 10. Similarly, the length between the upper end of the left-wall upper claw portion 94 and the lower end of the left-wall lower claw portion 96 in the longitudinal direction (Z-axis direction) of the housing 10 is longer than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c.

Figure 27 is an enlarged schematic diagram of the upper frame portion 22 at the portion where the support portion 90 is installed. When the opening frame portion 21 includes the support portion 90, as shown in Figure 27, the upper frame protruding wall portion 22d of the upper frame portion 22 has an upper frame claw portion 28. The upper frame portion 22 has an upper frame claw portion 28 that protrudes downward. The upper frame claw portion 28 engages with the upper end portion 90a of the support portion 90.

The upper frame claw portion 28 is arranged to protrude downward from the upper frame protruding wall portion 22d. The upper frame claw portion 28 is formed in a plate shape. The upper frame claw portion 28 is arranged on the inner wall surface of the upper frame protruding wall portion 22d. The upper frame claw portion 28 is arranged further inward of the housing 10 than the upper frame protruding wall portion 22d in the front-to-rear direction (Y-axis direction) of the housing 10. Therefore, a step is formed in the opening frame portion 21 between the plate surface on the front side of the upper frame claw portion 28 and the plate surface on the front side of the upper frame protruding wall portion 22d. The width of the upper frame claw portion 28 in the left-to-right direction (X-axis direction) is shorter than the length between the left side surface portion 92 and the right side surface portion 93 in the left-to-right direction (X-axis direction) of the housing 10.

Figure 28 is an enlarged schematic diagram of the lower frame portion 23 at the portion where the support portion 90 is installed. When the opening frame portion 21 includes the support portion 90, as shown in Figure 28, the lower frame protruding wall portion 23c of the lower frame portion 23 has a lower frame claw portion 29. The lower frame portion 23 has a lower frame claw portion 29 that protrudes upward. The lower frame claw portion 29 engages with the lower end portion 90b of the support portion 90.

The lower frame claw portion 29 is arranged to protrude upward from the lower frame protruding wall portion 23c. The lower frame claw portion 29 is formed in a plate shape. The lower frame claw portion 29 is arranged on the inner wall surface of the lower frame protruding wall portion 23c. The lower frame claw portion 29 is arranged further inward of the housing 10 than the lower frame protruding wall portion 23c in the front-to-rear direction (Y-axis direction) of the housing 10. Therefore, a step is formed in the opening frame portion 21 between the plate surface on the front side of the lower frame claw portion 29 and the plate surface on the front side of the lower frame protruding wall portion 23c. The width of the lower frame claw portion 29 in the left-to-right direction (X-axis direction) is shorter than the length between the left side surface portion 92 and the right side surface portion 93 in the left-to-right direction (X-axis direction) of the housing 10.

27 and 28, the length of the upper frame claw portion 28 protruding downward from the lower edge 22d1 of the upper frame protruding wall portion 22d is defined as upper frame claw length H1, and the length of the lower frame claw portion 29 protruding upward from the upper edge 23c1 of the lower frame protruding wall portion 23c is defined as lower frame claw length H2. The upper frame claw length H1 of the upper frame claw portion 28 may be any length that allows the upper frame claw portion 28 to face the inner wall surface of the front surface portion 91 when the support portion 90 is attached to the upper frame portion 22 and the lower frame portion 23. The lower frame claw length H2 of the lower frame claw portion 29 may be any length that allows the lower frame claw portion 29 to face the inner wall surface of the front surface portion 91 when the support portion 90 is attached to the upper frame portion 22 and the lower frame portion 23.

Figure 29 is a perspective view showing the installation state of the support column 90 of the air conditioning apparatus 100 according to the embodiment. Figure 30 is a perspective view showing the installation state of the support column 90 of the air conditioning apparatus 100 according to the embodiment. As shown in Figure 29, when installing the support column 90 in the housing 10, the user first inserts the upper end portion 90a of the support column 90 into the housing 10, engages the upper end portion 90a with the upper frame claw portion 28 (see Figure 27), and installs the upper end portion 90a in the upper frame portion 22. At this time, the user places the left wall upper claw portion 94 and the right wall upper claw portion 95 on the inner surface side of the upper frame protruding wall portion 22d, and places the upper frame claw portion 28 in the space surrounded by the left side portion 92, the front portion 91, and the right side portion 93.

Next, as shown in Figure 30, the user inserts the lower end 90b of the support column 90 into the housing 10, engages the lower end 90b with the lower frame claw 29 (see Figure 28), and attaches the lower end 90b to the lower frame 23. At this time, the user places the left wall lower claw 96 and the right wall lower claw 97 on the inner surface of the lower frame protruding wall 23c, and places the lower frame claw 29 in the space surrounded by the left side surface 92, front surface 91, and right side surface 93. Thereafter, the user uses the weight of the support column 90 to hook the lower end 90b of the support column 90 onto the lower frame claw 29.

The support pillars 90 are attached to the upper frame portion 22 and the lower frame portion 23 and hooked onto them. Because the support pillars 90 are hooked onto the upper frame portion 22 and the lower frame portion 23, they are easy to attach to the upper frame portion 22 and the lower frame portion 23, and easy to remove from the upper frame portion 22 and the lower frame portion 23.

Figures 29 and 30 explain how to attach the support column 90. To remove the support column 90, simply reverse the steps. The user lifts the support column 90 and pulls the lower end 90b toward the user to remove the left-wall lower claw portion 96 and the right-wall lower claw portion 97 from the lower frame protruding wall portion 23c. Next, the user removes the left-wall upper claw portion 94 and the right-wall upper claw portion 95 from the upper frame protruding wall portion 22d.

Figure 31 is a plan view of the support column 90 attached to the upper frame section 22 and the lower frame section 23. Figure 32 is an oblique view of the support column 90 attached to the upper frame section 22. Figure 33 is a side view of the support column 90 attached to the upper frame section 22. As shown in Figures 31 to 33, when the support column 90 is attached to the upper frame section 22, the upper end 90a of the support column 90 engages with the upper frame claw section 28.

32 and 33, when the support column 90 is attached to the upper frame 22, the left-wall upper claw portion 94 and the right-wall upper claw portion 95 are positioned on the inner surface of the upper frame protruding wall portion 22d. When the support column 90 is moved in the front-to-rear direction (Y-axis direction), the left-wall upper claw portion 94 and the right-wall upper claw portion 95 abut against the upper frame protruding wall portion 22d from the inner surface side of the upper frame protruding wall portion 22d. The left-wall upper claw portion 94 and the right-wall upper claw portion 95 abut against the upper frame protruding wall portion 22d from the inner surface side of the upper frame protruding wall portion 22d due to the following configuration: In the up-down direction (Z-axis direction) of the housing 10, the length between the upper end of the left-wall upper claw portion 94 and the lower end of the left-wall lower claw portion 96 is longer than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c. Similarly, in the vertical direction (Z-axis direction) of the housing 10, the length between the upper end of the left wall upper claw portion 94 and the lower end of the left wall lower claw portion 96 of the support portion 90 is longer than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c.

As shown in Figures 32 and 33, when the support column 90 is attached to the upper frame 22, the upper frame claws 28 are positioned on the inner surface of the front surface 91, and the front surface 91 is positioned on the outer surface of the upper frame claws 28. The upper frame claws 28 and the front surface 91 face each other in the front-to-back direction (Y-axis direction) of the housing 10. When the support column 90 is moved in the front-to-back direction (Y-axis direction), the upper frame claws 28 abut against the front surface 91 from the inner surface side of the front surface 91. When the support column 90 is moved in the front-to-back direction (Y-axis direction), the front surface 91 abuts against the upper frame claws 28 from the outer surface side of the upper frame claws 28.

As shown in Figures 32 and 33, when the support column 90 is attached to the upper frame 22, a gap S1 is formed between the lower edge 22d1 of the upper frame protruding wall 22d and the upper edge 91a of the front surface 91. Due to the gap S1, the air conditioning apparatus 100 allows the user to lift the support column 90 when attaching or removing it, and position the left-wall lower claw 96 and the right-wall lower claw 97 on the inner surface of the lower frame protruding wall 23c. Note that when the support column 90 is attached to the upper frame 22, the gap S1 is covered and closed by the upper frame claw 28 from the inner surfaces of the upper frame protruding wall 22d and the front surface 91.

Figure 34 is an oblique view of the support column 90 attached to the lower frame section 23. Figure 35 is a side view of the support column 90 attached to the lower frame section 23. As shown in Figures 34 and 35, when the support column 90 is attached to the lower frame section 23, the lower end 90b of the support column 90 engages with the lower frame claw section 29.

34 and 35, when the support column 90 is attached to the lower frame 23, the left-wall lower claw portion 96 and the right-wall lower claw portion 97 are positioned on the inner surface of the lower frame protruding wall portion 23c. When the support column 90 is moved in the front-to-rear direction (Y-axis direction), the left-wall lower claw portion 96 and the right-wall lower claw portion 97 abut against the lower frame protruding wall portion 23c from the inner surface of the lower frame protruding wall portion 23c. The left-wall lower claw portion 96 and the right-wall lower claw portion 97 abut against the lower frame protruding wall portion 23c from the inner surface of the lower frame protruding wall portion 23c due to the following configuration: In the up-down direction (Z-axis direction) of the housing 10, the length between the upper end of the left-wall upper claw portion 94 and the lower end of the left-wall lower claw portion 96 is longer than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c. Similarly, in the vertical direction (Z-axis direction) of the housing 10, the length between the upper end of the left wall upper claw portion 94 and the lower end of the left wall lower claw portion 96 of the support portion 90 is longer than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c.

As shown in Figures 34 and 35, when the support column 90 is attached to the lower frame 23, the lower frame claws 29 are positioned on the inner surface of the front surface 91, and the front surface 91 is positioned on the outer surface of the lower frame claws 29. The lower frame claws 29 and the front surface 91 face each other in the front-to-back direction (Y-axis direction) of the housing 10. When the support column 90 is moved in the front-to-back direction (Y-axis direction), the lower frame claws 29 abut against the front surface 91 from the inner surface of the front surface 91. When the support column 90 is moved in the front-to-back direction (Y-axis direction), the front surface 91 abuts against the lower frame claws 29 from the outer surface of the lower frame claws 29.

As shown in Figures 34 and 35, when the support column 90 is attached to the lower frame 23, no gap is formed between the upper edge 23c1 of the lower frame protruding wall 23c and the lower edge 91b of the front surface 91. This is because the weight of the support column 90 causes the lower edge 91b of the front surface 91 to rest on the upper edge 23c1 of the lower frame protruding wall 23c.

When the support pillar 90 is attached to the upper frame portion 22 and the lower frame portion 23, the front surface 91 of the upper end portion 90a of the support pillar 90 faces the upper frame claw portion 28 from the outside of the housing 10, and the front surface 91 of the lower end portion 90b of the support pillar 90 faces the lower frame claw portion 29 from the outside of the housing 10. Furthermore, when the support pillar 90 is attached to the upper frame portion 22 and the lower frame portion 23, the upper claw portion 95a formed on the upper end portion 90a of the support pillar 90 faces the upper frame protruding wall portion 22d of the upper frame portion 22 from the inside of the housing 10. Furthermore, when the support pillar 90 is attached to the upper frame portion 22 and the lower frame portion 23, the lower claw portion 97a formed on the lower end portion 90b of the support pillar 90 faces the lower frame protruding wall portion 23c of the lower frame portion 23 from the inside of the housing 10.

Figure 36 is an enlarged schematic diagram of an air conditioning device 100 according to an embodiment in which an extension portion 40 is provided on a support portion 90. Figure 37 is a schematic diagram of the filter fixing portion 80 shown in Figure 36 viewed in the axial direction of the shaft portion 86.

The support pillar 90 includes an extension portion 40, which may be attached to the front surface 91 of the support pillar 90 as shown in Figures 36 and 37. That is, the support pillar 90 may be formed integrally with the extension portion 40. The inner wall portion 42 of the extension portion 40 is fixed to the front surface 91 of the support pillar 90 by a fixing member 45. The filter fixing portion 80 is attached to the extension portion 40 of the support pillar 90. The shaft portion 86 is attached to the outer wall portion 43 of the extension portion 40. The open tip portion 27 (see Figure 19) is formed in the extension portion 40 of the support pillar 90.

In the embodiment shown in Figure 17, the shaft 86 of the filter fixing part 80 is arranged to be located above the filter panel 70, but the shaft 86 of the filter fixing part 80 may also be arranged to be located to the side of the filter panel 70, as shown in Figures 36 and 37. The shaft 86 may also be arranged to be located in the gap between the filter panels 70. In other words, when two filter panels 70 are arranged in the housing 10, the shaft 86 of the filter fixing part 80 may be arranged between the filter panels 70.

As shown in Figures 36 and 37, the filter panel 70 is fixed at its sides by the filter support parts 81. When two filter panels 70 are installed in the opening frame part 21, the filter fixing parts 80 may fix the sides of each filter panel 70 or the upper corner parts.

(Filter panel 70)
Figure 38 is a perspective view that schematically shows a filter panel 70 attached to the housing 10 of an air conditioning apparatus 100 according to an embodiment. The air conditioning apparatus 100 has at least one filter panel 70. There may be one filter panel 70, or there may be multiple filter panels 70. The number of filter panels 70 is determined by factors such as the size of the housing 10, which is based on the horsepower of the air conditioning apparatus 100. The filter panel 70 removes dust and other particles from the air passing through the suction section 20. The filter panel 70 has a filter frame 71 and a filter 72.

The filter frame 71 is a frame material that supports the filter 72. The filter frame 71 is formed from, for example, aluminum, but the material of the filter frame 71 is not limited to aluminum. The filter frame 71 is formed in a rectangular shape when viewed in the front-to-rear direction (Y-axis direction) of the housing 10. The filter frame 71 is formed in a box shape and has a rectangular panel front wall 70a, a panel top wall 70b that is provided on the four sides of the panel front wall 70a, a panel left wall 70c, a panel right wall 70d, and a panel bottom wall 70e.

The panel front wall portion 70a is a wall portion that forms a wall facing the front-to-rear direction (Y-axis direction) of the housing 10. The panel front wall portion 70a is a wall portion located on the front side of the housing 10, and is a wall portion that faces the suction panel 17 when the suction panel 17 is attached to the housing 10. The panel front wall portion 70a is also a wall portion that faces the filter fixing portion 80. The panel front wall portion 70a is a wall portion that extends in the left-to-right direction (X-axis direction) of the housing 10, and also a wall portion that extends in the up-and-down direction (Z-axis direction) of the housing 10.

The panel upper wall portion 70b is a wall portion provided on the upper edge of the panel front wall portion 70a. The panel left wall portion 70c is a wall portion provided on the left edge of the panel front wall portion 70a. The panel right wall portion 70d is a wall portion provided on the right edge of the panel front wall portion 70a. The panel bottom wall portion 70e is a wall portion provided on the lower edge of the panel front wall portion 70a.

The space enclosed by the panel front wall 70a, panel top wall 70b, panel left wall 70c, panel right wall 70d, and panel bottom wall 70e faces the interior of the housing 10, toward the side where the heat exchanger 50 (Figure 4) is located. A filter 72 is disposed in the space enclosed by the panel front wall 70a, panel top wall 70b, panel left wall 70c, panel right wall 70d, and panel bottom wall 70e. An opening 70f is formed in the panel front wall 70a, and the filter 72 is positioned so that it is exposed through the opening 70f.

The filter 72 is a filtering material that captures dust from the air passing through the filter 72 and separates the dust from the air passing through the filter 72. Note that the filter panel 70 itself, which has the filter 72 mounted on the filter frame 71, may also be referred to as the filter.

[Operation and effect of the air conditioning device 100]
The air conditioning apparatus 100 includes at least one filter panel 70 that has a filter 72 and is disposed in the intake section 20 to filter air flowing into the housing 10. The intake section 20 also has a filter fixing section 80 that fixes the at least one filter panel 70. A filter support section 81 of the filter fixing section 80 is suspended by a shaft section 86, and an upper section of the filter support section 81 is rotatably supported by the shaft section 86. When at least one filter panel 70 is disposed in the intake section 20, the filter support section 81 faces all of the filter panels 70 from the outside of the housing 10.

In the air conditioning unit 100, the lower part of the filter support portion 81 is formed with a wider plate width than the upper part of the filter support portion 81. In the air conditioning unit 100, the lower part of the filter support portion 81 is heavier, and the filter support portion 81 is positioned opposite the filter panel 70 due to its own weight. When placing the filter panel 70 in the intake portion 20, the user does not need to secure the filter panel 70 to the intake portion 20 of the housing 10 with fasteners such as screws, and no tools are required to attach the fasteners. Furthermore, the user can attach and remove the filter panel 70 simply by rotating the filter support portion 81. This allows the user to easily attach and remove the filter 72 to and from the housing 10. Because the user can easily attach and remove the filter 72 to and from the housing 10, the user does not need to take the time to attach and remove the filter 72, and the heat exchanger 50 can be easily washed and cleaned.

When the air conditioning unit 100 is operating, air surrounding the housing 10 is drawn into the housing 10, causing the filter panel 70 to adhere tightly to the wall inside the housing 10. However, if the filter fixing part 80 were not provided, there would be no air being drawn into the housing 10 when the air conditioning unit 100 is stopped, and the filter panel 70 could fall off or collapse outside the housing 10. Because the air conditioning unit 100 has the filter fixing part 80, when the filter panel 70 is installed in the opening frame part 21 of the intake part 20, it is possible to support the filter panel 70 from the outside of the housing 10 to prevent it from collapsing outside the housing 10.

In addition, the air conditioning unit 100 is configured so that the lower part of the filter support part 81 is wider than the upper part of the filter support part 81. This allows the user to reduce the angle at which the filter support part 81 is rotated when attaching the filter panel 70 to the housing 10 or when removing the filter panel 70 from the housing 10. As a result, even when there are constraints such as a lack of space above the filter panel 70, the air conditioning unit 100 can secure the filter panel 70 with the filter fixing part 80 due to the small range of movement of the filter support part 81.

In addition, the air conditioning unit 100 is configured so that the lower part of the filter support part 81 is wider than the upper part of the filter support part 81. Therefore, when two filter panels 70 are installed in the intake part 20, the shaft part 86 of the filter fixing part 80 can be attached between or above the two filter panels 70, thereby fixing the two filter panels 70 at the lower part of a single filter fixing part 80. Even when two filter panels 70 are installed in the intake part 20, the air conditioning unit 100 does not need to provide a filter fixing part 80 for each filter panel 70.

Furthermore, the filter support part 81 is formed in a triangular shape when viewed in the axial direction of the shaft part 86, and the shaft part 86 passes through the vertex of the triangular filter support part 81. Therefore, when a user attaches the filter panel 70 to the housing 10 or removes the filter panel 70 from the housing 10, the angle at which the filter support part 81 is rotated can be made smaller compared to when the filter support part 81 is square. As a result, even when there are constraints such as a lack of space above the filter panel 70, the air conditioning device 100 can fix the filter panel 70 using the filter fixing part 80 due to the small range of movement of the filter support part 81.

The suction section 20 is part of the wall that constitutes the suction section 20 and has an open tip 27 formed in a cylindrical shape with a raised edge around the hole. The open tip 27 is inserted into an opening 84 formed in the filter support section 81, and the shaft 86 is inserted into and fixed to the hole at the tip of the open tip 27. Because the shaft 86 is fixed to the open tip 27, the filter fixing section 80 can reliably and firmly screw the shaft 86 into place. In the air conditioning device 100, the open tip 27 is positioned between the filter support section 81 and the shaft 86. Therefore, even when the shaft 86 is tightened into the open tip 27, the head 87 of the shaft 86 does not tighten the filter support section 81 to the opening frame 21, and rotation of the filter support section 81 is not hindered by friction between the filter support section 81, the head 87, and the opening frame 21.

The air conditioning unit 100 requires the filter panel 70 to be tightly fitted to the opening frame 21 to ensure airtightness, but if the filter support part 81 has any room for movement back and forth, this goal of ensuring airtightness cannot be achieved. If the opening tip 27 is positioned between the filter support part 81 and the shaft 86, the opening tip 27, which has been burred, limits the forward and backward movement of the filter support part 81. Therefore, by having the opening tip 27 and filter fixation part 80 configured in this way, the air conditioning unit 100 can tightly fit the filter panel 70 to the opening frame 21, ensuring the airtightness of the air conditioning unit 100.

The filter fixing portion 80 is also attached to the upper frame portion 22. With this configuration, the filter fixing portion 80 can fix the upper portion of the filter panel 70.

The opening frame portion 21 is formed in the shape of a long column, spans between the upper frame portion 22 and the lower frame portion 23, and includes a support portion 90 that is detachably arranged on the upper frame portion 22 and the lower frame portion 23. At least one filter panel 70 is arranged between the filter fixing portion 80 and the support portion 90 in the flow direction of the air drawn into the suction portion 20.

When the air conditioning unit 100 has two filter panels 70 installed in the intake section 20, for example, if the opening frame 21 does not include the support posts 90, the gap between the filter panels 70 will prevent air from passing through the filter 72 (see Figure 38). By including the support posts 90 in the opening frame 21 of the air conditioning unit 100, the gap between the filter panels 70 is covered from the inside of the housing 10, preventing air from passing through the gap between the filter panels 70. The support posts 90 can prevent so-called air bypass, in which air flows into the housing 10 from outside without passing through the filters 72 of the filter panels 70.

Furthermore, when the air conditioning unit 100 is operating, the air flow generated by the blower 60 applies a suction force to the filter panels 70. If the opening frame 21 did not include the support posts 90, there would be no support members for the filter panels 70 between the filter panels 70, and the filter panels 70 would be subject to deformation due to the suction force. In the air conditioning unit 100, the opening frame 21 includes the support posts 90, which allow the support posts 90 to support the filter panels 70 from inside the housing 10, preventing deformation of the filter panels 70 even when suction force is applied to them.

The filter fixing portion 80 is also attached to the support portion 90. With this configuration, the filter fixing portion 80 can fix the top or side of the filter panel 70.

Furthermore, the support pillars 90 are positioned so that they cover the space between the two filter panels 70 from inside the housing 10 when the intake section 20 is viewed from outside the housing 10, and support the two filter panels 70 from inside the housing 10. This configuration of the air conditioning device 100 prevents air from passing through the gaps between the filter panels 70, preventing so-called air bypass, in which air flows into the housing 10 from outside the housing 10 without passing through the filters 72 of the filter panels 70. This configuration of the air conditioning device 100 also allows the support pillars 90 to support the filter panels 70 from inside the housing 10, preventing deformation of the filter panels 70 even when suction force acts on the filter panels 70.

When the support pillar 90 is attached to the upper frame portion 22 and the lower frame portion 23, the front surface 91 of the upper end portion 90a of the support pillar 90 faces the upper frame claw portion 28 from the outside of the housing 10, and the front surface 91 of the lower end portion 90b of the support pillar 90 faces the lower frame claw portion 29 from the outside of the housing 10. When the support pillar 90 is attached to the upper frame portion 22 and the lower frame portion 23, the upper claw portion 95a formed on the upper end portion 90a of the support pillar 90 faces the upper frame protruding wall portion 22d of the upper frame portion 22 from the inside of the housing 10. When the support pillar 90 is attached to the upper frame portion 22 and the lower frame portion 23, the lower claw portion 97a formed on the lower end portion 90b of the support pillar 90 faces the lower frame protruding wall portion 23c of the lower frame portion 23 from the inside of the housing 10.

Since the upper claw portion 95a of the support column 90 abuts the upper frame protruding wall portion 22d and the lower claw portion 97a abuts the lower frame protruding wall portion 23c, the support column 90 does not move toward the front of the housing 10 after being attached to the upper frame portion 22 and the lower frame portion 23. Furthermore, since the upper frame claw portion 28 abuts the upper end of the front surface portion 91 and the lower frame claw portion 29 abuts the lower end of the front surface portion 91, the support column 90 does not move toward the rear of the housing 10, where the heat exchanger 50 is located, after being attached to the upper frame portion 22 and the lower frame portion 23. Therefore, even if a user grabs the support column 90 and stands up during service, the support column 90 will not come off the housing 10.

Furthermore, because the air conditioning unit 100 has this configuration, when placing the support column 90 in the intake section 20, the user does not need to secure the support column 90 to the housing 10 with fasteners such as screws, and no tools are required to attach the fasteners. Therefore, the user can easily attach and remove the support column 90 to and from the housing 10. Because the user can easily attach and remove the support column 90 to and from the housing 10, there is no need to bother with removing and attaching the support column 90, and the heat exchanger 50 can be easily washed and cleaned.

The configurations shown in the above embodiments are examples of the contents of this disclosure, and may be combined with other known technologies, and parts of the configurations may be omitted or modified without departing from the gist of this disclosure.

10 Housing, 11 Front panel, 12 Rear panel, 13 Right side panel, 14 Left side panel, 15 Bottom panel, 16 Top panel, 17 Intake panel, 17a Through hole, 20 Intake section, 21 Opening frame, 22 Upper frame, 22a Upper frame front section, 22b Upper frame top section, 22c Upper frame bottom section, 22d Upper frame protruding wall section, 22d1 Lower edge section, 23 Lower frame, 23a Lower frame bottom section, 23b Lower frame front wall section, 23c Lower frame protruding wall section, 23c1 Upper edge section, 24 Left frame section, 24a Left frame front section, 24b Left frame side wall section, 24c Left frame protruding wall section, 25 Right frame section, 25a Right frame front section, 25b Right frame side wall section, 25c Right frame protruding wall portion, 27 opening tip portion, 27a hole, 28 upper frame claw portion, 29 lower frame claw portion, 30 blowing portion, 40 extension portion, 41 bridging portion, 42 inner wall portion, 42a through hole, 43 outer wall portion, 43a through hole, 45 fixing member, 50 heat exchanger, 60 blower device, 61 blade, 62 fan casing, 62a discharge portion, 70 filter panel, 70a panel front wall portion, 70b panel upper wall portion, 70c panel left wall portion, 70d panel right wall portion, 70e panel bottom wall portion, 70f opening, 71 filter frame, 72 filter, 80 filter fixing portion, 80L filter fixing portion, 81 filter support portion, 81L filter support portion, 81a lower end portion, 81b upper end portion, 82 support plate portion, 83 Protrusion, 84 Opening, 86 Shaft, 87 Head, 88 Screw, 90 Support, 90a Upper end, 90b Lower end, 91 Front, 91a Upper edge, 91b Lower edge, 92 Left side, 93 Right side, 94 Left wall upper claw, 95 Right wall upper claw, 95a Upper claw, 96 Left wall lower claw, 97 Right wall lower claw, 97a Lower claw, 100 Air conditioning device.

Claims (7)

A blower;
a heat exchanger that exchanges heat between the refrigerant flowing therein and the air supplied by the air blower;
a housing formed with an intake section into which the air is drawn and an outlet section from which the air is blown out, the housing accommodating the blower device and the heat exchanger therein;
At least one filter panel having a filter and disposed in the intake section to filter the air flowing into the housing;
Equipped with
The suction portion is
a filter fixing portion for fixing the at least one filter panel;
The filter fixing portion is
a filter support portion formed in a plate shape;
a shaft portion that passes through the filter support portion and suspends and rotatably supports the filter support portion;
and
The filter support portion is
an upper portion of the filter support portion is rotatably supported by the shaft portion,
When the at least one filter panel is disposed in the suction section,
the filter panel is suspended from the shaft by its own weight and faces all of the filter panels of the at least one filter panel from the outside of the housing;
a lower portion of the filter support portion is formed with a plate width greater than that of an upper portion of the filter support portion,
The suction portion is
a part of the wall constituting the suction section, the part having an opening tip portion formed in a cylindrical shape with a rising edge around the hole;
The opening tip portion is
The filter is inserted into an opening formed in the filter support portion,
The shaft portion is
The air conditioning device is inserted into the hole at the tip of the open tip portion and fixed . A blower;
a heat exchanger that exchanges heat between the refrigerant flowing therein and the air supplied by the air blower;
a housing formed with an intake section into which the air is drawn and an outlet section from which the air is blown out, the housing accommodating the blower device and the heat exchanger therein;
At least one filter panel having a filter and disposed in the intake section to filter the air flowing into the housing;
Equipped with
The suction portion is
a filter fixing portion for fixing the at least one filter panel;
The filter fixing portion is
a filter support portion formed in a plate shape;
a shaft portion that passes through the filter support portion and suspends and rotatably supports the filter support portion;
and
The filter support portion is
an upper portion of the filter support portion is rotatably supported by the shaft portion,
When the at least one filter panel is disposed in the suction section,
the filter panel is suspended from the shaft by its own weight and faces all of the filter panels of the at least one filter panel from the outside of the housing;
a lower portion of the filter support portion is formed with a plate width greater than that of an upper portion of the filter support portion,
The suction portion is
It has an opening frame portion formed in a rectangular frame shape,
The opening frame portion is
an upper frame portion located at an upper edge portion of the suction portion;
a lower frame portion located at a lower edge portion of the suction portion;
Including,
The opening frame portion is
a support portion formed in a long columnar shape, spanning between the upper frame portion and the lower frame portion, and detachably disposed on the upper frame portion and the lower frame portion;
The filter fixing portion is
attached to the support portion,
The at least one filter panel comprises:
The air conditioning apparatus is disposed between the filter fixing portion and the support portion in the direction of flow of the air drawn into the suction portion. The filter support portion is
When viewed in the axial direction of the shaft portion, the shaft portion is formed in a triangular shape,
The shaft portion is
3. The air conditioner according to claim 1, wherein the filter support member is formed in a triangular shape and penetrates an apex of the filter support member. The suction portion is
The opening frame portion is formed in a rectangular frame shape,
The opening frame portion is
an upper frame portion located at an upper edge portion of the suction portion;
a lower frame portion located at a lower edge portion of the suction portion;
Including,
The filter fixing portion is
The air conditioner according to claim 1 , wherein the air conditioner is attached to the upper frame portion. The opening frame portion is
a support portion formed in a long columnar shape, spanning between the upper frame portion and the lower frame portion, and detachably disposed on the upper frame portion and the lower frame portion;
The at least one filter panel comprises:
The air conditioner according to claim 4, wherein the filter is disposed between the filter fixing portion and the support portion in the direction of flow of the air drawn into the suction portion. the at least one filter panel comprises two filter panels;
When the two filter panels are disposed in the suction section,
The support portion is
An air conditioning apparatus as described in claim 2 or 5, wherein the suction section is positioned so as to cover the space between the two filter panels from inside the housing when viewed from outside the housing and to support the two filter panels from inside the housing. The support portion is
a front surface portion formed in a plate shape, and a left side surface portion and a right side surface portion extending from both sides of the front surface portion toward the inside of the housing, facing each other, and formed longer than the front surface portion along the longitudinal direction;
The upper portions of the left side surface and the right side surface are
An upper claw portion is formed to protrude above the upper edge of the front surface,
The left side surface and the right side surface are provided at the lower part thereof with:
A lower claw portion is formed so as to protrude downward from the lower edge portion of the front surface,
The length of the upper claw portion is longer than the length of the lower claw portion in the longitudinal direction,
The upper frame portion is
It has an upper frame claw portion that protrudes downward,
The lower frame portion is
It has a lower frame claw portion that protrudes upward,
When the support portion is attached to the upper frame portion and the lower frame portion,
the front surface of the upper end of the support column faces the upper frame claw from the outside of the housing,
the front surface of the lower end of the support column faces the lower frame claw from the outside of the housing,
the upper claw portion formed on the upper end portion of the support column faces the upper frame portion from the inside of the housing,
The air conditioning apparatus according to claim 2 or 5 , wherein the lower claws formed on the lower ends of the support columns face the lower frame from inside the housing.