JP4984646B2 - Air conditioner indoor unit - Google Patents

Description

  The present invention relates to an indoor unit of an air conditioner, and more particularly to an indoor unit of a ceiling suspended type air conditioner that is suspended from a ceiling of a space to be air-conditioned.

In a conventional ceiling-suspended type air conditioner indoor unit, at least one of an air suction port and an air outlet is provided on the lower surface of the indoor unit, and the indoor unit is installed so as to approach the ceiling surface. (For example, refer to Patent Document 1).
JP 2002-89871 A

  However, in the conventional indoor unit, since the installation surface with the ceiling is provided on the top surface of the indoor unit, the modeling of the top surface is limited by the ceiling. Furthermore, the lower surface of the indoor unit is provided with an air inlet or outlet, and the formation of the lower surface that is easy to touch is restricted by the openings of the inlet and outlet.

  On the other hand, interiors have been diversified inside buildings where indoor units are installed, and living spaces with various designs have been realized. In order to adapt to these living spaces, the design is freer than before. There is a demand for an indoor unit of an air conditioner having a high degree.

  The subject of this invention is providing the indoor unit of the air conditioning apparatus which raised the freedom degree of the design in view of the said request.

An indoor unit for an air conditioner according to a first aspect of the present invention is an indoor unit for a ceiling-suspended air conditioner, and includes a main body, a suspension unit, and a control device for operation . The main body has an air inlet and an air outlet, and is disposed away from the ceiling of the air conditioning target space. The suspension part has a rectangular parallelepiped shape, and suspends the main body from the ceiling. The control device is built in the hanging part. The outer shell of the main body is composed of at least a top surface, a lower surface, and side surfaces. The top surface faces the ceiling of the air conditioning target space, and the lower surface faces the floor surface of the air conditioning target space. The side surface is disposed between the top surface and the bottom surface. The air inlet is formed on the top surface. The air outlet is formed at a place other than the lower surface.

In the indoor unit of this air conditioner, since the top surface is separated from the ceiling of the air-conditioning target space, the top surface is hardly limited by the ceiling, and the degree of freedom in the design of the top surface is increased. In addition, the suction port is provided on the top surface, so that it is difficult to touch the human eye and hardly gives design discomfort to the person. Furthermore, since the shaping of the lower surface is hardly restricted by the shapes of the suction port and the air outlet, the degree of freedom in the design of the lower surface is increased. Moreover, in this indoor unit, the unused space which exists between a ceiling surface and a main body is utilized effectively. For this reason, a margin is created in the space inside the main body, and the degree of freedom in design and design increases.

An indoor unit for an air conditioner according to a second aspect of the present invention is an indoor unit for a ceiling-suspended air conditioner, and includes a main body and a suspension part. The main body has an air inlet and an air outlet, and is disposed away from the ceiling of the air conditioning target space. The main body is suspended from the ceiling by the suspension portion. The outer shell of the main body is composed of at least a top surface, a lower surface, and side surfaces. The top surface faces the ceiling of the air conditioning target space, and the lower surface faces the floor surface of the air conditioning target space. The side surface is disposed between the top surface and the bottom surface. Air inlets are formed on the top and bottom surfaces. The air outlet is formed at a place other than the lower surface. And the panel which closes any one inlet of a top | upper surface and a lower surface is further provided.

  In this indoor unit, the user can select the position of the suction port. When the user is concerned about the exposure of the suction port, the user can change the suction port position to the top surface, which is convenient.

An indoor unit for an air conditioner according to a third aspect of the present invention is an indoor unit for a ceiling-suspended air conditioner, and includes a main body and a suspension part. The main body has an air inlet and an air outlet, and is disposed away from the ceiling of the air conditioning target space. The main body is suspended from the ceiling by the suspension portion. The outer shell of the main body is composed of at least a top surface, a lower surface, and side surfaces. The top surface faces the ceiling of the air conditioning target space, and the lower surface faces the floor surface of the air conditioning target space. The side surface is disposed between the top surface and the bottom surface. Air inlets are formed on the top and bottom surfaces. The air outlet is formed at a place other than the lower surface. And the panel which closes any one inlet of a top | upper surface and a lower surface is further provided. And it has further provided the cylindrical casing which covers the main body and closes either the top surface or the lower surface.

  In this indoor unit, the user can select the position of the suction port. When the user is concerned about the exposure of the suction port, the user can change the suction port position to the top surface, which is convenient.

An indoor unit for an air conditioner according to a fourth aspect of the present invention is the indoor unit for an air conditioner according to any one of the first to third aspects , wherein the top surface is convex upward. Is formed.

  Here, the central part of the main body becomes thicker and the outer peripheral part of the main body becomes thinner, so that the main body is felt thin. That is, it is possible to promote a feeling of thinness using the visual effect of the design.

An indoor unit for an air conditioner according to a fifth aspect of the present invention is the indoor unit for an air conditioner according to any one of the first to third aspects, wherein the air outlet is formed on a side surface.

  Here, since it is not necessary to form a blower outlet on the lower surface, the degree of freedom in design of the lower surface is increased. In general, the heat exchanger of the indoor unit is arranged along the side surface, so that the air passage distance from the heat exchanger to the air outlet is shortened by providing the air outlet on the side surface, and the air flow rate loss. Decrease.

An indoor unit for an air conditioner according to a sixth aspect of the present invention is the indoor unit for an air conditioner according to any one of the first to third aspects , wherein the lower surface forms a flat or curved surface without an opening. It is formed as follows.

  Here, since there is no opening on the lower surface, modeling of the lower surface is hardly limited by the opening, and the degree of freedom of the design on the lower surface is increased. Furthermore, a clean appearance is maintained on the design.

An indoor unit for an air conditioner according to a seventh aspect of the present invention is the indoor unit for an air conditioner according to any one of the first to third aspects , wherein a refrigerant pipe and a drain are provided inside the suspension portion. At least one of a tube and an electric wire is accommodated. The refrigerant pipe is a pipe through which refrigerant flows, and the drain pipe is a pipe through which drain water is discharged. The electric wire is for supplying electric power to the main body.

  Here, a tubular or linear member that needs to be routed at the time of construction is covered with the hanging portion, and is invisible to the human eye. For this reason, the external appearance of the indoor unit or the ceiling is hardly damaged by the construction.

An indoor unit for an air conditioner according to an eighth aspect of the present invention is the indoor unit for an air conditioner according to any one of the first to third aspects , wherein the hanging portion is other than the peripheral portion of the top surface. It is provided to extend from there.

  For this reason, the connection position of the main body and the suspension part is difficult to touch the human eye, and the appearance of the indoor unit is less likely to be damaged. Moreover, compared with the indoor unit in which the suspension portion extends from the peripheral portion of the top surface toward the ceiling, the number of suspension portions connected to the main body is reduced, and the suspension bolts are reduced. For this reason, material cost and construction man-hours are reduced.

An indoor unit for an air conditioner according to a ninth aspect is the indoor unit for an air conditioner according to the second aspect or the third aspect , wherein the main body is suspended by a single hanging portion.

  In this indoor unit, a hanging portion is disposed on the center of gravity of the main body, and is symmetric with respect to the hanging portion. For this reason, it is a good-looking design that is balanced.

An indoor unit of an air conditioner according to a tenth aspect of the present invention is the indoor unit of the air conditioner according to the ninth aspect of the present invention, wherein the main body rotates a predetermined angle with the suspension portion as the central axis.

  In this indoor unit, the user can change the air blowing direction by 90 degrees. For this reason, when the user does not want to directly contact the cold air or the warm air, the user does not need to change the position and is convenient.

An indoor unit of an air conditioner according to an eleventh aspect of the invention is the indoor unit of an air conditioner according to the second aspect of the invention, wherein the panel includes a lighting device.

  In this indoor unit, the indoor unit also serves as a lighting device. Conventionally, the lighting is generally installed at the center of the ceiling and the indoor unit is installed at the ceiling end. However, even if the indoor unit is installed at the center of the ceiling, it does not get in the way. For this reason, the freedom degree of the ceiling installation position of an indoor unit increases.

An indoor unit of an air conditioner according to a twelfth aspect of the present invention is the indoor unit of the air conditioner according to the third aspect of the present invention, wherein the casing is attached and detached along the longitudinal direction of the main body.

  In this indoor unit, the user can replace the casing. For this reason, it is easy to repair against fading and dirt due to long-term use, and it is easy to use.

An indoor unit for an air conditioner according to a thirteenth aspect is the indoor unit for an air conditioner according to the third aspect, wherein the casing is custom-made.

  In this indoor unit, the user's preference is reflected in the design. This encourages market appeal.

An indoor unit of an air conditioner according to a fourteenth aspect of the present invention is the indoor unit of the air conditioner according to the third aspect of the present invention, and maintenance and inspection are performed from an end in the longitudinal direction of the casing.

  In this indoor unit, an inspector can maintain and inspect a fan, a filter, and the like from the side surface of the main body. The conventional inspection in the posture of looking up from the bottom may impose a physical burden on the inspector, but here, the inspection work becomes easy.

An air conditioner indoor unit according to a fifteenth aspect of the present invention is the air conditioner indoor unit according to the third aspect of the present invention, and includes a blower and an opening / closing plate. A blower is arrange | positioned in a main body and has two ventilation openings which face the mutually opposite direction. The opening / closing plate opens and closes the two air outlets of the blower. The blowing direction is changed by the combination of opening and closing of the two air outlets.

  In this indoor unit, the user can select one of a type in which air is blown out from both side surfaces of the main body and a type in which air is blown out from one side surface of the main body. For this reason, when the user does not want to directly contact the cold air or the warm air, the user does not need to change the position and is convenient.

An air conditioner indoor unit according to a sixteenth aspect of the present invention is the air conditioner indoor unit according to the fifteenth aspect of the present invention, wherein the blower is a sirocco fan.

  In this indoor unit, the blower can be provided with two air outlets and is small. For this reason, the freedom degree of design improves.

An indoor unit of an air conditioner according to a seventeenth aspect of the present invention is the indoor unit of the air conditioner according to the fifteenth aspect of the present invention, and is connected and installed in the longitudinal direction.

  With this indoor unit, it is possible to cope with one model from small capacity to high capacity by connecting and installing. For this reason, a manufacturing cost falls.

In the indoor unit of the air conditioner according to the first aspect of the invention, since the top surface is separated from the ceiling of the air-conditioning target space, the top surface molding is hardly restricted by the ceiling, and the degree of freedom of design is increased. . In addition, the suction port is less likely to be touched by the human eye, and almost no design discomfort is given to the person. Furthermore, the shaping of the lower surface is not limited to the shapes of the suction port and the air outlet. For this reason, the freedom degree of the design of a lower surface becomes high. In addition, since the unused space existing between the ceiling surface and the main body is effectively used, a space is created in the space inside the main body, and the degree of freedom in design and design increases.

In the indoor unit of the air conditioner according to the second aspect of the present invention, the user can select the position of the suction port. Therefore, when the exposure of the suction port is a concern, the position of the suction port can be changed to the top surface, which is convenient.

In the indoor unit of the air conditioner according to the third aspect of the invention, since the user can select the position of the suction port, if the exposure of the suction port is anxious, the position of the suction port can be changed to the top surface, which is convenient.

In the indoor unit of the air conditioner according to the fourth aspect of the invention, the central part of the main body becomes thick and the outer peripheral part of the main body becomes thin, so that the main body feels thin. That is, it is possible to promote a feeling of thinness by using the visual effect of the design.

Since the indoor unit of the air conditioner according to the fifth aspect of the present invention does not need to form a blowout port on the lower surface, the degree of freedom in design of the lower surface is increased. Furthermore, the air path distance from the heat exchanger to the outlet is shortened, and the air flow rate loss is reduced.

In the indoor unit of the air conditioner according to the sixth aspect of the invention, since there is no opening on the lower surface, the shaping of the lower surface is hardly restricted by the opening, and the degree of freedom in design of the lower surface is increased. Furthermore, a clean appearance is maintained on the design.

In the indoor unit of the air conditioner according to the seventh aspect of the present invention, tubular and linear members that need to be routed at the time of construction are covered with the hanging portions and are not visible to the human eye. For this reason, the external appearance of the indoor unit or the ceiling is hardly damaged by the construction.

In the indoor unit of the air conditioner according to the eighth aspect of the present invention, the connection position between the main body and the hanging portion is difficult to touch the human eye, and the appearance is not easily lost. Moreover, compared with the indoor unit in which the suspension portion extends from the peripheral portion of the top surface toward the ceiling, the number of suspension portions connected to the main body is reduced, and the suspension bolts are reduced. For this reason, material cost and construction man-hours are reduced.

In the indoor unit of the air conditioner according to the ninth aspect of the present invention, the hanging portion is arranged on the center of gravity of the main body, and the front and rear are symmetrical with respect to the hanging portion. Therefore, the design is balanced and has a good appearance.

In the indoor unit of the air conditioner according to the tenth aspect of the invention, since the user can change the air blowing direction by 90 degrees, the user does not need to change the position when he / she does not want to directly hit cold air or warm air, Convenience is good.

  In the indoor unit of the air conditioner according to the eleventh aspect, the indoor unit also serves as a lighting device. Conventionally, the lighting is generally installed at the center of the ceiling and the indoor unit is installed at the ceiling end. However, even if the indoor unit is installed at the center of the ceiling, it does not get in the way. For this reason, the freedom degree of the ceiling installation position of an indoor unit increases.

In the indoor unit of an air conditioner according to the twelfth aspect of the invention, the user can replace the casing, so that it is easy to repair against fading and dirt due to long-term use.

In the indoor unit for an air conditioner according to the thirteenth aspect , the preference of the user is reflected in the design, so that appeal in the market is promoted.

In the indoor unit for an air conditioning apparatus according to the fourteenth aspect of the present invention, maintenance and inspection of the fan, the filter, and the like can be performed from the side surface of the main body. The conventional inspection in the posture of looking up from the bottom may impose a physical burden on the inspector, but here, the inspection work becomes easy.

In the indoor unit of the air conditioner according to the fifteenth aspect, the user can select one of a type in which air is blown from both side surfaces of the main body and a type in which air is blown from one side surface of the main body. For this reason, when the user does not want to directly contact the cold air or the warm air, the user does not need to change the position and is convenient.

In the indoor unit of the air conditioner according to the sixteenth aspect of the present invention, the blower can be provided with two air outlets and is small. For this reason, the freedom degree of design improves.

With the indoor unit for an air conditioner according to the seventeenth aspect of the present invention, it is possible to cope with one model from small capacity to high capacity by connecting and installing. For this reason, a manufacturing cost falls.

[First Embodiment]
<Configuration of indoor unit>
FIG. 1 is an external perspective view when the indoor unit of the air-conditioning apparatus according to the first embodiment of the present invention is viewed from above, and FIG. 2 is an external perspective view when the indoor unit is viewed from below. As shown in FIG. 1, the indoor unit 1 of the air conditioner is a ceiling-suspended type, and includes a main body 2 that houses various components therein and a suspension unit 3 that suspends the main body 2 from the ceiling. Has been. The outer shell of the main body 2 includes a top surface 4, a lower surface 5, two long side surfaces 6, and two short side surfaces 7.

  The shape of the top surface 4 is a rectangle in a plan view, and is a smooth circular arc convex upward in a side view. A suction port 41 is formed at the center of the top surface 4, and the peripheral shape of the suction port 41 is a rectangle in a plan view, and a smooth circular arc convex upward in a side view. A filter 42 is attached to the suction port 41, and the filter 42 removes dust in the air sucked from the suction port 41.

  The shape of the lower surface 5 is a rectangle in a plan view, and is a smooth circular arc convex downward in a side view. The lower surface 5 is not formed with any openings such as suction ports and air outlets, and has a continuous smooth curved surface.

  The shape of the long side surface 6 is a rectangle and is parallel to the longitudinal direction of the main body 2. An air outlet 61 is formed over almost the entire area of the long side surface 6, and the peripheral shape of the air outlet 61 is rectangular. A cover 62 composed of a plurality of slits is attached to the air outlet 61. The cover 62 hardly resists the blown air flow and has a function of shielding the inside of the main body 2 from being visible from the outside. The shape of the short side surface 7 is a substantially elliptical shape and is orthogonal to the longitudinal direction of the main body 2.

  In the conventional air conditioner, dust attached to the periphery of the suction port and the air outlet, dust accumulated on the filter, etc. are easy to touch the human eyes and have a high possibility of giving unpleasant feeling. Since the lower surface has a continuous and smooth curved surface with no opening, the possibility of giving unpleasant feeling as in the prior art is almost eliminated.

<Internal structure of indoor unit>
3 is a cross-sectional view taken along the line III-III in FIG. 1, and FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. As shown in FIG. 3, the two air blowers 12 are arrange | positioned in the main body 2, and the centrifugal air blower is employ | adopted in this embodiment. A motor 13 that drives the blower 12 is disposed below the blower 12, and a bell mouth 14 is disposed above the blower 12. The bell mouth 14 collects the air sucked by the blower 12 at the inlet of the blower 12.

  As shown in FIG. 4, the heat exchanger 15 is disposed between the blower 12 and the long side surface 6 and exchanges heat with the air blown out from the blower 12. Since the heat exchanger 15 and the air outlet 61 are adjacent to each other, the air passage is short and the air passage flow loss is small.

  The drain pan 16 guides and collects drain water that is condensed and dripped onto the heat exchanger 15 during cooling down to the lower side of the drain pump 17. The drain pump 17 discharges drain water to a drain pipe 32 described later.

  Inside the hanging portion 3, a refrigerant pipe 31, a drain pipe 32, a hanging bolt 33, and an electric wire 34 are accommodated. The refrigerant pipe 31 includes a liquid side refrigerant pipe (not shown) and a gas side refrigerant pipe (not shown), and is connected to an outdoor unit (not shown) outside the air-conditioning target space. The drain pipe 32 is a pipe through which drain water discharged from the drain pump 17 passes. The suspension bolt 33 is a metal long bolt, and the head of the suspension bolt 33 is fixed to the inner wall of the short side surface 7. The electric wire 34 supplies power to various devices such as the motor 13 housed in the main body 2.

  In this embodiment, since the refrigerant | coolant piping 31, the drain piping 32, the suspension bolt 33, and the electric wire 34 are accommodated in the inside of the suspension part 3, the exterior appearance of the indoor unit 1 or a ceiling is hardly impaired by construction. .

<Operation of indoor unit>
When the indoor unit 1 of the air conditioner starts operation, the motor 13 rotates the blower 12 and air is sucked from the suction port 41. When the sucked air passes through the filter 42, dust and the like are removed, and the sucked air is sucked into the blower 12 through the bell mouth 14. The blower 12 applies air to the heat exchanger 15 to promote heat exchange. The air that has passed through the heat exchanger 15 is blown out from the air outlet 61.

<Features>
(1)
The indoor unit 1 of the air conditioner includes a main body 2 arranged away from the ceiling and a suspension part 3 for suspending the main body 2 from the ceiling. The outer shell of the main body 2 includes a top surface 4, a lower surface 5, two long side surfaces 6, and two short side surfaces 7. For this reason, the modeling of the top surface 4 is not limited to the ceiling, and the degree of freedom of the design of the top surface 4 is increased. A suction port 41 is formed at the center of the top surface 4, and a filter 42 for removing dust in the air is attached to the suction port 41. For this reason, the dirt of the filter 42 becomes difficult to touch the human eye and hardly causes discomfort to the person. Moreover, since the suction inlet 41 does not touch the human eye, there is hardly any design discomfort to the person. Furthermore, since the shape of the top surface 4 is an upwardly convex smooth circular curved surface, the central portion of the main body 2 is thick and the outer peripheral portion is thin, so that the apparent thinness of the main body 2 is promoted.

(2)
In the indoor unit 1 of this air conditioner, since the suction port 41 is formed on the top surface 4 and the air outlet 61 is formed on the long side surface 6, the lower surface 5 has no openings such as the air inlet and the air outlet, and Only a continuous and smooth curved surface is formed. For this reason, the appearance with a clean feeling is maintained on the design. Moreover, since shaping | molding of the lower surface 5 is hardly restrict | limited by the suction inlet 41 and the blower outlet 61, the freedom degree of the design of the lower surface 5 becomes high. Moreover, since the blower outlet 61 is formed in the long side surface 6, the air passage distance from the heat exchanger 15 to the blower outlet 61 is short, and there are few air passage flow volume losses.

(3)
In the indoor unit 1 of this air conditioner, a refrigerant pipe 31, a drain pipe 32, a suspension bolt 33, and an electric wire 34 are accommodated inside the suspension part 3. For this reason, the tubular and linear members that need to be routed at the time of construction are not touched by human eyes, and the appearance of the indoor unit and the ceiling is hardly damaged by the construction.

(4)
In the indoor unit 1 of this air conditioner, the suspension part 3 is connected at both ends of the top surface 4 so as not to protrude from the peripheral part. For this reason, since the connection position of the main body 2 and the suspension part 3 is hardly touched by human eyes, the beauty of an external appearance becomes difficult to be impaired. Furthermore, compared with the indoor unit in which the suspension bolt extends from the peripheral edge of the top surface toward the ceiling, the number of the suspension portions 3 connected to the main body 2 is reduced, the suspension bolt 33 is reduced, and the material cost and construction are reduced. Man-hours are reduced.

[Second Embodiment]
<Configuration of indoor unit>
Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 5 shows an external perspective view when the indoor unit 101 of the air-conditioning apparatus according to the second embodiment of the present invention is viewed from above. As shown in FIG. 5, the indoor unit 101 of the air conditioner includes a main body 102 that houses various components therein, and a single suspension unit 103 that suspends the main body 102 from the ceiling. The outer shell of the main body 102 includes a top surface 104, a lower surface 105, and one side surface 106.

  The shape of the top surface 104 is a circle in a plan view, and is a smooth circular arc convex upward in a side view. A column-shaped suspension 103 extends from the center of the top surface 104 toward the ceiling. In addition, two suction ports 141 are formed on the top surface 104 so as to surround the connecting portion with the hanging portion 103, and the peripheral shape of the suction port 141 is substantially a fan shape in a plan view, and in a side view. It is a smooth arc that is convex upward. In FIG. 5, only one suction port 141 is visible, but in reality, another suction port 141 is formed at a point-symmetrical position with respect to the center of the top surface 104. A filter 142 is attached to the suction port 141, and the filter 142 removes dust in the air sucked from the suction port 141.

  The shape of the lower surface 105 is a circular shape in a plan view, and a smooth circular arc convex downward in a side view. The lower surface 105 is not formed with any openings such as suction ports and air outlets, and has a continuous smooth curved surface.

  The side surface 106 is cylindrical and has an upper end in contact with the vicinity of the periphery of the top surface 104 and a lower end in contact with the vicinity of the periphery of the lower surface 105. Two air outlets 161 are formed on the side surface 106, and a cover 162 including a plurality of slits is attached to the air outlet 161. In FIG. 5, only one air outlet 161 is visible, but in reality, another air outlet 161 is formed at a point-symmetrical position with respect to the center of the side surface 106. The cover 162 hardly resists the blown air flow and has a function of shielding the inside of the main body 102 from being visible from the outside.

<Internal structure of indoor unit>
6 is a cross-sectional view taken along the line CC of FIG. As shown in FIG. 6, one blower 112 is disposed in the main body 102, and in this embodiment, a centrifugal blower is employed. A motor 113 that drives the blower 112 is disposed below the blower 112, and a bell mouth 114 is disposed above the blower 112. The bell mouth 114 collects the air sucked by the blower 112 at the inlet of the blower 112.

  The heat exchanger 115 has a hollow semi-cylindrical shape, is disposed between the blower 112 and the side surface 106 so as to surround the outer periphery of the blower 112, and performs heat exchange with air blown from the blower 112. Since the heat exchanger 115 and the air outlet 161 are adjacent to each other, the air passage is short and the air passage flow rate loss is small.

  The drain pan 116 guides and collects the drain water that is condensed and dripped onto the heat exchanger 115 during cooling down to a drain pump (not shown). The drain pump discharges drain water to a drain pipe 132 described later.

  Inside the suspension part 3, a refrigerant pipe 131, a drain pipe 132, a suspension bolt 133, and an electric wire 134 are accommodated. The refrigerant pipe 131 exits from the end surface of the heat exchanger 115, is routed to the center along the inner surface of the top surface 104, and is guided to the ceiling through the inside of the hanging portion 103. The drain pipe 132 is a pipe through which drain water discharged from the drain pump passes. The drain pipe 132 exits the drain pan 116, is led to the center along the inner surface of the top surface 104, passes through the inside of the suspension portion 103, and goes to the ceiling. Led. The suspension bolt 133 is a metal bolt, and the head of the suspension bolt 133 is fixed inside the top surface 104. The electric wire 134 supplies power to various devices such as the motor 113 housed in the main body 102. The electric wire 134 is routed in parallel with the refrigerant pipe 131 or the drain pipe 132, and is led to the ceiling through the inside of the hanging portion 103.

  In this embodiment, since the refrigerant | coolant piping 131, the drain piping 132, the suspension bolt 133, and the electric wire 134 are accommodated in the inside of the suspension part 103, the external appearance of an indoor unit or a ceiling is hardly impaired.

<Operation of indoor unit>
When the indoor unit 101 of the air conditioner starts operation, the motor 113 rotates the blower 112 and air is sucked from the suction port 141. When the sucked air passes through the filter 142, dust and the like are removed, and the sucked air is sucked into the blower 112 through the bell mouth 114. The blower 112 applies air to the heat exchanger 115 to promote heat exchange. The air that has passed through the heat exchanger 115 is blown out from the air outlet 161.

<Features>
(1)
The outdoor unit 101 of the air conditioner includes a main body 102 disposed away from the ceiling and a single suspension 103 for suspending the main body 102 from the ceiling. The outer shell of the main body 102 includes a top surface 104, a lower surface 105, and side surfaces 106. For this reason, the modeling of the top surface 104 is not limited to the ceiling, and the degree of freedom of the design of the top surface 104 is increased. In addition, a suction port 141 is formed in the top surface 104, and a filter 142 for removing dust in the air is attached to the suction port 141. For this reason, the dirt of the filter is difficult to touch the human eye and hardly causes discomfort to the human being. Moreover, since the suction inlet 141 does not touch the human eye, there is hardly any design discomfort to the person. Furthermore, since the shape of the top surface 104 is an upward convex smooth circular arc plane, the central portion of the main body 102 is thick and the outer peripheral portion is thin, and the apparent thinness of the main body 102 is promoted, and Since the side surface 106 is cylindrical, a feeling of smallness is also promoted. Moreover, since the blower outlet 161 is formed in the side surface 106, the air passage distance from the heat exchanger 115 to the blower outlet 161 is short, and there is little air passage flow rate loss.

(2)
In the outdoor unit 101 of the air conditioner, the lower surface 105 has no openings such as a suction port and a blowout port, and has a continuous and smoothly curved surface that protrudes downward. For this reason, the appearance with a clean feeling is maintained on the design. In addition, since the shaping of the lower surface 105 is hardly restricted by the suction port 141 and the air outlet 161, the degree of freedom of the design of the lower surface 105 is increased.

(3)
In the indoor unit 101 of this air conditioner, a refrigerant pipe 131, a drain pipe 132, a suspension bolt 133, and an electric wire 134 are housed inside the suspension part 103. For this reason, the tubular and linear members that need to be routed at the time of construction are not touched by human eyes, and the appearance of the indoor unit and the ceiling is hardly damaged by the construction.

(4)
In the indoor unit 101 of the air conditioner, the suspension portion 103 is connected to the center of the top surface 104. For this reason, since the connection position of the main body 102 and the hanging part 103 is hardly touched by human eyes, the beauty of the appearance is not easily lost. Furthermore, since there is one suspension part 103, the suspension bolt 133 is reduced, and material costs and construction man-hours are reduced.

[Third Embodiment]
<Configuration of indoor unit 201>
FIG. 7 shows an external perspective view of the indoor unit of the air conditioner according to the third embodiment of the present invention as viewed from above. In addition, the name of each component is used in correspondence with the first embodiment, and the detailed description is omitted. The indoor unit 201 of the air conditioner includes a main body 202 that houses various components therein, and a single suspension unit 203 that suspends the main body 202 from the ceiling. The outline of the main body 202 is constituted by a top surface 204, a lower surface 205, two long side surfaces 206, and two short side surfaces 207. The hanging portion 203 exits from the center of the top surface 204 and reaches the ceiling.

<Internal structure of indoor unit 201>
Fig.8 (a) is a perspective view showing the inside of a main body, FIG.8 (b) is a perspective view of a suspension bolt. As shown in FIG. 8A, two blowers 212 are arranged in the main body 202, and a sirocco fan is employed in this embodiment. A motor 213 that drives the blower 212 is disposed between the two blowers 212.

  The heat exchanger 215 is disposed between the blower 212 and the long side surface 206, and exchanges heat with the air blown out from the blower 212. Since the heat exchanger 215 and the air outlet 261 are adjacent to each other, the air passage is short and the air passage flow rate loss is small.

  In the indoor unit 201 of the present embodiment, when the user rotates the main body 202 by 90 degrees around the hanging portion 203, the bent portion 231a of the refrigerant pipe 231 and the bent portion 232a of the drain pipe 232 inside the hanging portion 203 are adapted. Twist. At this time, the suspension bolt 233 does not rotate, but the metal fitting 233a shown in FIG.

<Features of Third Embodiment>
The third embodiment has the following features in addition to the features of the first embodiment. In the indoor unit 201 of this air conditioner, the main body 202 rotates 90 degrees around the suspension part 203 as a central axis. For this reason, the user can adjust the direction in which the air is blown out, and is easy to use.

[Fourth Embodiment]
<Configuration of indoor unit 301>
FIG. 9 shows an external perspective view of an indoor unit of an air conditioner according to a fourth embodiment of the present invention as viewed from above. In addition, the name of each component is used in correspondence with the first embodiment, and the detailed description is omitted. The indoor unit 301 of the air conditioner includes a main body 302 and a hanging portion 303 for hanging the main body 302 from the ceiling. The outer shell of the main body 302 includes a top surface 304, a lower surface 305, two long side surfaces 306, and two short side surfaces 307. The hanging portion 303 has a rectangular parallelepiped shape and crosses the center of the top surface 304 in the longitudinal direction.

  In addition to the refrigerant pipe 331, the drain pipe 332, the suspension bolt 333, and the electric wire 334, a control device 308 that controls the operation of the main body 302 is housed inside the hanging portion 303.

<Features of Fourth Embodiment>
The fourth embodiment has the following features in addition to the features of the first embodiment. In the indoor unit 301 of this air conditioner, the shape of the suspension part 303 forms a rectangular parallelepiped. A control device 308 for controlling the operation of the main body 302 is built in the hanging portion 303. For this reason, the unused space existing between the ceiling surface and the main body 302 is effectively used, and a space is created in the space inside the main body 302, thereby increasing the degree of freedom in design and design.

[Fifth Embodiment]
<Configuration of indoor unit 401>
FIG. 10 shows an external perspective view of an indoor unit of an air conditioner according to a fifth embodiment of the present invention as viewed from above. In addition, the name of each component is used in correspondence with the first embodiment, and the detailed description is omitted. The indoor unit 401 of the air conditioner includes a main body 402 and two suspension portions 403 for suspending the main body 402 from the ceiling. The outer shell of the main body 402 includes a top surface 404, a lower surface 405, two long side surfaces 406, and two short side surfaces 407.

  The shape of the lower surface 405 is a rectangle in a plan view, and is a smooth circular arc convex downward in a side view. A suction port (not shown) similar to that of the top surface 404 is formed on the lower surface 405, and is closed by the panel 409. The panel 409 is formed along the curved surface of the lower surface 405, and the four attachment claws 409a are fitted into predetermined holes 405a on the lower surface 405 by snap fit.

  In this embodiment, the suction port 441 is on the top surface 404 side, but if there is a request from the user, the suction port 441 on the top surface 404 is closed and a suction port (not shown) on the bottom surface 405 is used. Also good.

<Features of Fifth Embodiment>
The fifth embodiment has the following features in addition to the features of the first embodiment. The indoor unit 401 of the air conditioner has suction ports 441 formed on both the top surface 404 and the bottom surface 405. Further, a panel 409 that closes the suction port 441 of either the top surface 404 or the bottom surface 405 is further provided. Here, the suction port 441 on the lower surface 405 is blocked by the panel 409, but the suction port 441 on the top surface 404 may be blocked. For this reason, the user can select the position of the suction port 441, and if the exposure of the suction port is anxious, the user can change the suction port position to the top surface, which is convenient.

[Modification of Fifth Embodiment]
<Configuration of modified indoor unit 401>
FIG. 11 shows an external perspective view of a modification of the indoor unit of the air-conditioning apparatus according to the fifth embodiment of the present invention as viewed from above. In addition, the same code | symbol is attached | subjected to the part corresponding to 5th Embodiment, and description is abbreviate | omitted.

  The lower surface 405 is blocked by the lighting device 410. The lighting device 410 is formed along the curved surface of the lower surface 405, and the four attachment claws 410a are fitted into predetermined holes 405a of the lower surface 405 by snap fit.

  Further, the plug 410 c of the power cord 410 b of the lighting device 410 is attached to the plug hole 405 b of the lower surface 405.

<Features of Modification of Fifth Embodiment>
The modification of the fifth embodiment has the following characteristics in addition to the characteristics of the first embodiment. In the indoor unit 401 of this air conditioner, the panel 409 includes a lighting device 410. Here, since the indoor unit 401 also serves as illumination, the degree of freedom in the ceiling installation position of the indoor unit is increased.

[Sixth Embodiment]
<Configuration of indoor unit 501>
FIG. 12 shows an external perspective view of an indoor unit of an air conditioner according to a sixth embodiment of the present invention as viewed from above. In addition, the name of each component is used in correspondence with the first embodiment, and the detailed description is omitted. The indoor unit 501 of the air conditioner includes a main body 502 that houses various components therein, and two suspension portions 503 for suspending the main body 502 from the ceiling. The outline of the main body 502 includes a top surface 504, a lower surface 505, two long side surfaces 506, and one short side surface 507.

  At the center of the top surface 504, a slightly raised protrusion 504a crosses in the longitudinal direction. Two suction ports 541 are formed so as to sandwich the protrusion 504a.

  At the center of the lower surface 505, a slightly raised protrusion 505 a crosses the longitudinal direction in the same manner as the top surface 504. Two suction ports (not shown) are formed so as to sandwich the protrusion 505a.

  The shape of the short side surface 507 is substantially elliptical and is orthogonal to the longitudinal direction of the main body 502. The end opposite to the short side surface 507 is open, and maintenance of the devices inside the main body 502 can be performed from this opening.

(casing)
The casing 509 is a member that covers the main body 502 and is attached along the longitudinal direction of the main body 502. The upper shape of the casing 509 is matched with the top surface 504, is a rectangle in plan view, and is a smooth circular arc convex upward in side view. Further, the lower shape is matched with the lower surface 505, and is a rectangular shape in a plan view, and a smooth circular arc convex downward in a side view.

  The casing 509 is provided with a slit 594 that fits with the protrusion 504a on the top surface 504, and a slit 595 that fits with the protrusion 505a on the lower surface 505. In addition, an opening 591 is provided in a portion of the top surface 504 facing the suction port 541 and a filter 592 is attached. Furthermore, an opening 596 having a size that does not interfere with the air outlet 561 of the long side surface 506 is provided in a portion facing the long side surface 506.

  One end of the casing 509 in the longitudinal direction is open for attachment to the main body 502, and the opposite end is closed as a short side 597.

  FIG. 13 is a perspective view of the casing 509 of FIG. 12 in a state where the casing 509 is inverted 180 degrees around the long axis. By reversing 180 degrees, the opening 591 and the filter 592 are opposed to the suction port (not shown) of the lower surface 505 of the main body 502, and the position of the suction port 541 is changed from the top surface 504 side to the lower surface 505 side. .

  Moreover, the casing 509 is manufactured by custom-made in order to reflect the color and pattern according to a user's preference in a design.

<Internal structure of indoor unit 501>
As shown in FIGS. 12 and 13, two blowers 512 are arranged in the main body 2, and a sirocco fan is employed in this embodiment. A motor 513 that drives the blower 512 is disposed between the two blowers 512.

  FIG. 14 is a schematic side view showing the inside of the main body 502. The blower 512 has two blower ports 512a and 512b, and the blower port 512a and the blower port 512b face in opposite directions. The blower 512 is further provided with an opening / closing plate 564 that opens and closes the blower openings 512a and 512b.

  Since there are two blowers 512 and one blower 512 has two blower openings 512a and 512b, the air blowing method varies depending on the combination of opening and closing of the blower openings 512a and 512b. For example, when the blower 512 on the left side of the front view in FIG. 12 is No. 1 and the blower 512 on the right side of the front view is No. 2, the direction of the blower port 512a is the front and the direction of the blower port 512b is the rear, the combination of the air blowing directions Are four types of air: (front of Unit 1, forward of Unit 2), (front of Unit 1, rear of Unit 2), (back of Unit 1 and front of Unit 2), and (back of Unit 1 and rear of Unit 2). The blowing direction can be realized.

  In the present embodiment, the capacity can be increased by connecting and installing the indoor units 501 in the longitudinal direction as the air-conditioning target space such as an office becomes larger. In addition, by connecting and installing a plurality of indoor units 501, it can be seen as one indoor unit.

<Operation of indoor unit 501>
When the indoor unit 501 of the air conditioner starts operation, the motor 513 rotates the blower 512 and air is sucked from the suction port 541. When the sucked air passes through the filter 592, dust and the like are removed and the air is sucked into the blower 512. The blower 512 applies air to the heat exchanger 515 to promote heat exchange. The air that has passed through the heat exchanger 515 is blown out from the air outlet 561.

  In the present embodiment, by changing the combination of opening and closing of the two air outlets 512a and 512b of the blower 512, the direction blown out from the air outlet 561 can be changed.

<Features of Sixth Embodiment>
The sixth embodiment has the following features in addition to the features of the first embodiment.

(1)
The indoor unit 501 of this air conditioner has a suction port 541 formed on the top surface 504 and the bottom surface 505. Further, the indoor unit 501 is further provided with a casing 509 that closes one of the suction ports 541 of the top surface 504 and the bottom surface 505. For this reason, the user can select the position of the suction port 541, which is convenient. Moreover, the casing 509 is attached and detached along the longitudinal direction of the main body 502, and is further manufactured by order. For this reason, the user can remove and wash the casing 509 when it notices fading and dirt. Or it can replace | exchange for the casing 509 of a new design, and the casing 509 of a favorite design. Moreover, since the maintenance check of the indoor unit 501 can be performed from the longitudinal end of the casing 509, the check work becomes easy.

(2)
The indoor unit 501 of the air conditioner further includes a blower 512 and an opening / closing plate 564. The blower 512 has two blower ports 512a and 512b that face in opposite directions. The opening / closing plate 564 opens and closes the air outlets 512a and 512b. The air blowing direction is changed by the combination of opening and closing of the two air outlets 512a and 512b. For this reason, the user can select any one of a type in which air is blown out from both side surfaces of the main body and a type in which air is blown out from one side surface of the main body. When the user does not want to directly hit the cold air or the warm air, the user does not need to change the position and the usability is improved. The blower 512 is a sirocco fan and is small. For this reason, the freedom degree of design increases.

(3)
The indoor unit 501 of the air conditioner can be connected and installed in the longitudinal direction. For this reason, it is possible to cope with one model from a small capacity to a high capacity, and the manufacturing cost is reduced.

  As described above, according to the present invention, it is useful for an indoor unit of a ceiling-suspended type air conditioner.

The appearance perspective view at the time of seeing the indoor unit of the air harmony device concerning a 1st embodiment of the present invention from the upper part. The external appearance perspective view at the time of seeing the indoor unit of the air conditioning apparatus from the lower side. III-III sectional drawing of FIG. IV-IV sectional drawing of FIG. The external appearance perspective view at the time of seeing the indoor unit of the air conditioning apparatus which concerns on 2nd Embodiment of this invention from upper direction. VI-VI sectional drawing of FIG. The external appearance perspective view at the time of seeing the indoor unit of the air conditioning apparatus which concerns on 3rd Embodiment of this invention from upper direction. (A) The perspective view showing the inside of the main body of the indoor unit. (B) A perspective view of a suspension bolt. The external appearance perspective view at the time of seeing the indoor unit of the air conditioning apparatus which concerns on 4th Embodiment of this invention from upper direction. The external appearance perspective view at the time of seeing the indoor unit of the air conditioning apparatus which concerns on 5th Embodiment of this invention from upper direction. The external appearance perspective view at the time of seeing the modification of the indoor unit from the upper part. The external appearance perspective view at the time of seeing the indoor unit of the air conditioning apparatus which concerns on 6th Embodiment of this invention from upper direction. The perspective view of the state which reversed the casing of FIG. 12 180 degree | times around the major axis. The schematic side view which shows the inside of a main body.

1, 101, 201, 301, 401, 501 Air conditioner 2, 102, 202, 302, 402, 502 Main body 3, 103, 203, 303, 403, 503 Hanging part 4, 104, 204, 304, 404, 503 Top surface 5,105,205,305,405,505 Bottom surface 6,106,206,306,406,506 Long side surface 7,207,307,407,507 Short side surface 31,131,231,331,431,531 Refrigerant Piping 32,132,232,332,432,532 Drain piping 34,134,234,334,434,534 Electric wire 41,141,241,341,441,541 Suction port 61,161,261,361,461,561 Air outlet 308 Control device 409 Panel 410 Lighting equipment 509 Casing 512 Wind machine 512a, 512b blowing port 564 opening and closing plate

Claims (17)

An indoor unit of a ceiling-suspended air conditioner,
A main body (302) having an air inlet (341) and an air outlet (361) and disposed away from the ceiling of the air-conditioning target space;
A hanging part (303) that has a rectangular parallelepiped shape and suspends the main body from the ceiling;
A control device (308) for operation built in the hanging portion (303);
With
The outer shell of the main body has at least a top surface (304) facing the ceiling, a lower surface (305) facing the floor surface of the air-conditioning target space, and a side surface disposed between the top surface and the lower surface ( 306), and
The inlet (341) is formed in the top surface,
The air outlet (361) is formed at a place other than the lower surface (305),
Air conditioner indoor unit (301).   An indoor unit of a ceiling-suspended air conditioner,
  A main body (402) having an air inlet (441) and an air outlet (461), which is disposed away from the ceiling of the air-conditioning target space;
  A suspension part (403) for suspending the main body from the ceiling;
With
  The outer shell of the main body has at least a top surface (404) facing the ceiling, a lower surface (405) facing the floor surface of the air conditioning target space, and a side surface disposed between the top surface and the lower surface ( 406), and
  The suction port (441) is formed in the top surface (404) and the lower surface (405),
  The air outlet (461) is formed at a place other than the lower surface (405),
  A panel (409) for closing the suction port (441) on either the top surface (404) or the bottom surface (405);
Air conditioner indoor unit (401).   An indoor unit of a ceiling-suspended air conditioner,
  A main body (502) having an air inlet (541) and an air outlet (561), which is disposed away from the ceiling of the air-conditioning target space;
  A suspension part (503) for suspending the main body from the ceiling;
With
  The outer shell of the main body includes at least a top surface (504) facing the ceiling, a lower surface (505) facing the floor surface of the air-conditioning target space, and a side surface disposed between the top surface and the lower surface ( 507), and
  The suction port (541) is formed in the top surface (504) and the bottom surface (505),
  The air outlet (561) is formed at a place other than the lower surface (505),
  A cylindrical casing (509) that covers the suction port (541) on either the top surface (504) or the bottom surface (505) is further provided on the main body 502.
Air conditioner indoor unit (501). The top surface is formed in a shape that is convex upward,
The indoor unit of the air conditioning apparatus of any one of Claims 1-3 . The air outlet is formed on the side surface,
The indoor unit of the air conditioning apparatus of any one of Claims 1-3 . The lower surface (305) is formed so as to form a flat surface or a curved surface without an opening.
The indoor unit (301) of the air conditioning apparatus according to claim 1. Inside the suspension part, at least one of a refrigerant pipe for circulating the refrigerant, a drain pipe for discharging drain water, and an electric wire for supplying electric power to the main body is housed.
The indoor unit of the air conditioning apparatus of any one of Claims 1-3 . The hanging portion is provided so as to extend toward the ceiling from a place other than the periphery of the top surface.
The indoor unit of the air conditioning apparatus of any one of Claims 1-3 . The main body is suspended by one of the suspension portions;
The indoor unit of the air conditioning apparatus of Claim 2 or Claim 3 . The main body rotates a predetermined angle about the hanging portion as a central axis;
The indoor unit of the air conditioning apparatus of Claim 9 . The panel (409) includes a lighting device (410);
The indoor unit (401) of the air conditioning apparatus according to claim 2 . The casing (509) is attached and detached along the longitudinal direction of the main body (502).
The indoor unit (501) of the air conditioning apparatus of Claim 3 . The casing (509) is custom made,
The indoor unit (501) of the air conditioning apparatus of Claim 3 . Maintenance inspection is performed from the longitudinal end of the casing (509).
The indoor unit (501) of the air conditioning apparatus of Claim 3 . A blower (512) disposed in the body (502) and having two blower openings (512a, 512b) facing in opposite directions;
An opening and closing plate (564) for opening and closing the two air outlets (512a, 512b) of the blower (512);
Further comprising
The blowing direction is changed by the combination of opening and closing of the two air outlets (512a, 512b).
The indoor unit (501) of the air conditioning apparatus of Claim 3 . The blower (512) is a sirocco fan,
The indoor unit (501) of the air conditioning apparatus according to claim 15 . Connected in the longitudinal direction,
The indoor unit (501) of the air conditioning apparatus according to claim 15 .

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