JP4230326B2 - Filter holding device and air blower equipped with filter holding device - Google Patents

Description

  The present invention relates to a filter holding device that mainly holds a soft and non-rigid air filter, and a blower device that includes the filter holding device.

  Many air filters have been held by filter frames so far. Some air filters that are soft and not rigid include a lattice-like filter holder attached to the filter frame, and the filter holder holds the air filter against the filter frame. In addition, there exist some which were disclosed by patent document 1 and patent document 2 as this kind of prior art.

JP 11-63598 A JP 2001-341517 A

  The conventional filter holding device presses the filter with a filter holder against the filter frame that houses the filter, and there are many components, and the soft and non-rigid air filter can be loosened in the center and has poor appearance. There is a problem. In a filter provided with a grid-like filter presser, the slack of the filter can be avoided, but the pressure loss becomes large. When applying to a blower or the like, a blower having a large capacity must be selected.

  The present invention has been made in order to solve the above-described problems, and the object of the present invention is to provide a simple low-pressure loss with a configuration that can hold a soft and non-rigid air filter without slack. It is to obtain a filter holding device, and to obtain a blower provided with the filter holding device.

  In order to solve the above-mentioned problems, the present invention comprises a frame structure for mounting a filter, wherein a holding frame supported in a form crossing a plane in the frame of the frame structure is formed by bending a linear material. Thus, a means for holding the air filter on the in-frame plane of the frame structure is adopted.

  In order to solve the above-mentioned problems, another invention is to form a holding frame that is supported in a form crossing a plane in the frame of the frame structure by bending a linear material with respect to the frame structure on which the filter is mounted. A means is provided that includes a filter holding device that holds the air filter on the plane inside the frame of the frame structure by the frame.

  By adopting the above-described means, even a soft and non-rigid air filter can be held with good appearance without slack, and a low pressure loss can be achieved with a simple configuration.

  By adopting the above-described means, even a soft and non-rigid air filter can be held with good appearance without slack, a low pressure loss is achieved with a simple configuration, and the blower does not need to be enlarged.

  Two large and small V-shaped holding frames constructed by bending a linear material into an open leg shape are rotatably supported by pivotal fulcrum portions provided at the ends of the respective legs on opposite sides of the frame structure. Configure the holding device. For the larger holding frame, a fixing portion, which is a connecting portion of each leg, is fitted and attached to a latching hole provided on one side of the frame structure so as to be detachable. The smaller holding frame is supported by the larger holding frame. Each leg of the two holding frames crosses the plane in the frame of the frame structure diagonally. A flexible and non-rigid air filter housed in a frame structure is held with two holding frames in a flat state. The air filter is removed by widening the legs so that the fixed part is pulled out of the retaining hole and pivoted at the pivotal fulcrum to open the two holding frames. This filter holding device is suitable for devices that are mounted with an air filter in a horizontal direction along the ceiling surface and the like, and is suitable for the appearance because the air filter is held without sagging, but is suitable for the vertical and oblique directions. It is also effective for devices equipped with It has a simple structure with a frame structure and a holding frame. Since the holding frame is made by bending a linear material, the occupied area is extremely small and the pressure loss is low.

Embodiment 1 FIG.
FIG. 1 is a perspective view of a ceiling-mounted air purifier as a blower device with a front panel opened, and FIG. 2 is a front view of the same with the front panel removed. This air purifier is suspended and fixed in a space behind the ceiling, sucks room air from the suction port 2 of the front panel 1 provided along the ceiling surface, and returns to the room from the air outlet 3 of the front panel 1 to return to the room. This is cleaned while circulating air. The main body box 4 in which the blower is incorporated is configured as a hexahedron having an open lower surface, and a front panel 1 that is pivotally supported on one side and can be opened and closed is mounted on the opening. The open part of the main body box 4 is divided into two by a partition wall 5. One is substantially square and faces the suction port of the blower, and the other is rectangular and communicates with the discharge port of the blower.

  The open portion of the main body box 4 has a frame structure including a flange portion 6 projecting outward and a wind tunnel 7 entering the inside of a rectangular tube in the center of the flange portion 6. An air filter that cleans the sucked indoor air is attached to the open portion having a substantially square shape. The air filter is composed of two layers of an activated carbon filter (not shown) on the back side and a pre-filter 8 on the near side. Of course, a three-layer configuration or a multi-layer configuration including a high-performance filter may be employed. The activated carbon filter has rigidity capable of maintaining a flat state by itself, and is mounted in the wind tunnel 7 so as to be able to be engaged and disengaged by a locking structure in a state of crossing the wind tunnel 7.

  Since the prefilter 8 is flexible and rigid and cannot hold a flat state by itself, the prefilter 8 is held by the filter holding device 9 along the activated carbon filter. In the filter holding device 9, two large and small V-shaped holding frames 10 formed by bending a linear material into an open leg shape are provided at the ends of the respective legs 11 on opposite sides of the wind tunnel 7 of the frame structure. It is the structure supported by the rotation fulcrum part 12 so that rotation was possible. In the larger holding frame 10, a fixing portion 13, which is a connecting portion of each leg 11, is detachably fitted and attached to a retaining hole 14 provided on one side of the wind tunnel 7. The smaller holding frame 10 is supported and supported by the large holding frame 10, and a surface as a fall prevention member that prevents the pre-filter 8 from falling when the pre-filter 8 is removed is connected to the joint of each leg 11. A fastener 15 is attached. The legs 11 of the two large and small holding frames 10 obliquely cross the in-frame plane of the frame structure. The prefilter 8 housed in the frame structure is held by the two holding frames 10 while maintaining a flat surface. To remove the pre-filter 8, the leg 11 of the larger holding frame 10 is spread out, the fixing part 13 is pulled out of the retaining hole 14, and is rotated at the pivoting fulcrum part 12, and the smaller holding frame 10 is also pivoted. The two holding frames 10 can be opened in the form of double doors by being rotated by the portion 12.

  The filter holding device 9 is suitable for the air blower in which the prefilter 8 is mounted in the horizontal direction along the ceiling surface and the like so that the prefilter 8 can be held well without being loosened by its own weight. However, it is also effective for a blower device in which the prefilter 8 is mounted in a vertical direction or an oblique direction. And it is the simple structure by a frame structure and the holding frame 10, and since the holding frame 10 is made by bending a linear material, an occupation area is very small and a pressure loss is low, and ventilation performance is not reduced. About the linear material which comprises the holding frame 10, the prefilter 8 can be hold | maintained in the state urged | biased with an elastic force so that it may closely_contact | adhere to an activated carbon filter by using elastic materials, such as a spring material.

Embodiment 2. FIG.
This embodiment also relates to a ceiling-mounted air cleaning device, as in the first embodiment. Except for the configuration related to the holding frame of the filter holding device, the configuration is the same as that of the first embodiment. Therefore, the same parts as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof will be omitted.

  FIG. 3 is a perspective view showing the front panel 1 removed from the air purifying apparatus of the present embodiment, and FIG. 4 is a front view showing the front panel 1 similarly removed. As can be seen from the drawing, the filter holding device 9 of this air purifier has a single holding frame 10 formed by bending a linear material in a square shape at one side of the wind tunnel 7 of the frame structure and at two free ends. It is the structure supported by the provided rotation fulcrum part 12 so that rotation was possible. The vertical element 16 on the side of the holding frame 10 opposite to the pivotal fulcrum part 12 is provided with a fixing part 13 at the center, and is fitted in and attached to a retaining hole 14 provided on one side of the wind tunnel 7. ing. In the holding frame 10, two horizontal elements 17 traverse the in-frame plane of the frame structure, and one vertical element 16 cuts the in-frame plane. The prefilter 8 housed in the frame structure is held in a state in which a plane is maintained by the holding frame 10. The prefilter 8 can be removed by expanding the holding frame 10 and pulling out the fixing portion 13 from the retaining hole 14 and rotating it at the rotation fulcrum portion 12. The other configuration is the same as that of the first embodiment. The function is the same as that of the first embodiment except that the holding frame 10 is one and the configuration is simple.

Embodiment 3 FIG.
This embodiment also relates to a ceiling-mounted air cleaning device, as in the first embodiment. Except for the configuration related to the holding frame of the filter holding device, the configuration is the same as that of the first embodiment. Therefore, the same parts as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof will be omitted.

  FIG. 5 is a perspective view showing the front panel 1 of the air purifying apparatus according to the present embodiment with the front panel 1 removed, and FIG. 6 is a front view showing the same with the front panel 1 removed. As can be seen from the drawing, the filter holding device 9 of this air purifier has a single holding frame 10 which is formed in a V shape by bending a linear material, and has two legs on one side of the wind tunnel 7 having a frame structure. 11 is supported by a rotation fulcrum portion 12 provided at a free end of 11 so as to be rotatable. A fixed portion 13, which is a connecting portion of the two legs 11, is detachably fitted to and attached to a retaining hole 14 provided on one side of the wind tunnel 7. The holding frame 10 is configured such that each leg 11 of one holding frame 10 crosses an in-frame plane of the frame structure obliquely. The prefilter 8 housed in the frame structure is held in a state in which a plane is maintained by the holding frame 10. The prefilter 8 can be removed by expanding the holding frame 10 and pulling out the fixing portion 13 from the retaining hole 14 and rotating it at the rotation fulcrum portion 12. The other configuration is the same as that of the first embodiment. The function is the same as that of the first embodiment except that the holding frame 10 is one and the configuration is simple.

Embodiment 4 FIG.
This embodiment also relates to a ceiling-mounted air cleaning device, as in the first embodiment. Except for the configuration related to the holding frame of the filter holding device, the configuration is the same as that of the first embodiment. Therefore, the same parts as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof will be omitted.

  FIG. 7 is a perspective view showing the front panel 1 of the air purifying apparatus according to the present embodiment with the front panel 1 removed, and FIG. 8 is a front view showing the same with the front panel 1 removed. As can be seen from the drawing, the filter holding device 9 of this air purifier has a long holding frame 10 formed in a W shape by bending a linear material on one side of a wind tunnel 7 having a frame structure. It is the structure supported by the rotation fulcrum part 12 provided in the free end of the leg 11 so that rotation was possible. Two joint portions of the long leg 11 and the short leg 18 are fitted and attached to a hooking hole 14 provided on one side of the wind tunnel 7 as a fixing portion 13 so as to be detachable. The holding frame 10 is configured so that four long and short legs 11 and 18 of one holding frame 10 obliquely cross an inner plane of the frame structure. The prefilter 8 housed in the frame structure is held in a state in which a plane is maintained by the holding frame 10. The prefilter 8 can be removed by expanding the holding frame 10 and pulling out the fixing portion 13 from the retaining hole 14 and rotating it at the rotation fulcrum portion 12. The other configuration is the same as that of the first embodiment. The function is the same as that of the first embodiment except that the holding frame 10 has one structure, the structure is simple, and the fixing portion 13 is stable at two places.

Embodiment 5 FIG.
In this embodiment, the filter holding device shown in Embodiments 1 to 4 is applied to a heat exchange ventilator as a blower. The configuration of the filter holding device itself is the same as that shown in the first to fourth embodiments. Therefore, the same parts as those in the first to fourth embodiments are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 9 is a cross-sectional configuration diagram of the heat exchange ventilation apparatus of the present embodiment. In this heat exchange ventilator, a heat exchanger 19 that performs air-to-air heat exchange is incorporated in a casing 20 configured in a hexahedron box shape, and performs indoor ventilation by simultaneous supply and exhaust while performing heat exchange. Therefore, it is possible to carry out ventilation with little fluctuation of the state quantity in the room. In this heat exchange ventilator, a part of the path is constituted by one fluid passage of the heat exchanger 19, a supply air ventilation path through which an air flow from the outside to the room is supplied by the supply air blower 21, and a part of the path Is constituted by the other fluid passage of the heat exchanger 19, and an exhaust ventilation path through which an air flow from the room toward the outside is made independent by the exhaust blower 22 over the entire path.

  The heat exchanger 19 is formed in a stacked hexahedral column shape, and filter holding devices 9 are mounted on the inlet side of the fluid passage on the supply air passage side and on the inlet side of the fluid passage on the exhaust ventilation passage side. It is installed. Since the holding frame 10 is made by bending a linear material, the filter holding device 9 has an extremely small occupied area and low pressure loss, and does not deteriorate the blowing performance.

It is a perspective view which shows an air purifying apparatus. (Embodiment 1) It is a front view which shows an air purifying apparatus. (Embodiment 1) It is a perspective view which shows an air purifying apparatus. (Embodiment 2) It is a front view which shows an air purifying apparatus. (Embodiment 2) It is a perspective view which shows an air purifying apparatus. (Embodiment 3) It is a front view which shows an air purifying apparatus. (Embodiment 3) It is a perspective view which shows an air purifying apparatus. (Embodiment 4) It is a front view which shows an air purifying apparatus. (Embodiment 4) It is a section lineblock diagram of a heat exchange ventilator. (Embodiment 5)

Explanation of symbols

  7 wind tunnel, 8 pre-filter, 9 filter holding device, 10 holding frame, 11 legs, 12 rotating fulcrum, 13 fixing part, 14 retaining hole, 15 hook-and-loop fastener.

Claims (2)

The pivot point with respect to a wind tunnel for attaching the filter to the inside is rotatably supported, is disengageably supported by the fixed portion, the line having a resilient holding frame form across the plane perpendicular to the wind tunnel constructed by bending Jo material, a filter holding device with holding the filter in the air channel by this holding frame,
By supporting rotatably, engaged to detachably fixed to the air channel of the fixed portion of one of the holding frame by a respective pivot part on the inner side surface of the two of the holding frame facing the wind tunnel, The other holding frame is held ,
The two holding frames open and close in the form of double doors toward the open side of the wind tunnel,
A filter holding device in which a holding member is provided on the holding frame to prevent the filter from dropping. A blower comprising the filter holding device according to claim 1 in a blower passage.

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