JP2015121342A - Indoor equipment and air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain indoor equipment which supports wind direction vanes even when deformation of a decorative panel or the like occurs.SOLUTION: Indoor equipment includes: a decorative panel 3 having an air outlet opening in a rectangle shape; and wind direction vanes 4, each of which is formed into a rectangle shape so as to match the shape of the air outlet and rotates around a rotation axis to change a direction of air blown from the air outlet. The wind direction vane 4 includes an intermediate shaft 4a, which rotates with its rotation axis matching the rotation axis, in a rectangular long side intermediate portion. Intermediate support parts 3d, each of which has a bearing hole 3c formed therein and supports the intermediate shaft 4a, are integrally formed with the decorative panel 3. The indoor equipment further includes bearing components 8, each of which is formed by a material different from the wind direction vane 4 and fits in the bearing hole 3c.

Description

  The present invention relates to an indoor unit such as an air conditioner. In particular, the present invention relates to the installation of wind direction vanes (wind direction deflecting plates) disposed at the outlet.

  For example, in an indoor unit such as an air conditioner, a wind direction vane (hereinafter referred to as a vane) that changes the direction of air blown out from an air outlet is often installed as a wind direction deflecting plate in an air outlet portion. A wind direction vane has a plane part which guides the air which blows off from a blower outlet. Moreover, it has the circular axis | shaft for installing a plane part in an indoor unit main body in both ends. On the other hand, a hole for rotatably supporting the inserted circular shaft is formed on the main body side in accordance with the circular shaft. One hole side has a bearing portion in which a drive motor is arranged. Then, the drive motor, for example, on the basis of an instruction from the control device, has a circular shaft (at an arbitrary angle from a state (about 0 °) in which the air outlet is closed in parallel with the decorative panel having the air outlet. Wind direction vanes) can be rotated.

  Here, the blower outlet and the wind direction vane are often formed in a rectangular shape with a long side longer than a short side. Therefore, an intermediate shaft is formed on the wind direction vane, and an intermediate support portion that rotatably supports the intermediate shaft is installed in the intermediate portion of the blowout port formed on the decorative panel or the like, and the wind direction vane is also installed in the intermediate portion. (See, for example, Patent Document 1).

JP 2008-261564 A

  However, in a conventional indoor unit, an intermediate support portion is formed as a separate component from the decorative panel, and is often attached to the decorative panel by fitting or the like. For this reason, for example, even if the decorative panel is slightly deformed due to the installation conditions of the indoor unit etc., the deformation cannot be absorbed, and the intermediate support portion is removed from the decorative panel while the wind direction vane repeats rotation. The intermediate shaft has come off, and the intermediate shaft has come off from the intermediate support portion.

  The present invention has been made to solve the above-described problems. For example, an object of the present invention is to obtain an indoor unit that can support a wind vane even when a decorative panel is deformed.

  The indoor unit according to the present invention has a decorative panel having a blower outlet that opens in a rectangular shape and a rectangular shape that matches the shape of the blower outlet, and the direction of the air that rotates around the rotation shaft and blows out from the blower outlet The wind direction vane has an intermediate shaft that rotates in accordance with the rotation axis in the rectangular long-side intermediate portion, and a bearing hole is formed in the decorative panel. The intermediate support portion that supports the intermediate shaft is integrally formed, is made of a material different from the wind direction vane, and further includes a bearing component that is fitted into the bearing hole.

  Since the intermediate support portion for supporting the intermediate shaft of the wind direction vane of the present invention is formed integrally with the decorative panel, the intermediate shaft of the wind direction vane is prevented from coming off and improved in sliding performance without increasing the number of parts of the intermediate support portion. The effect of can be obtained. Moreover, by having a bearing part, rotation of an intermediate shaft can be made smooth and generation | occurrence | production of a sound can be suppressed.

It is a perspective view which shows the installation state of the indoor unit 1 which concerns on Embodiment 1 of this invention. It is a figure which shows the relationship between the wind direction vane 4 and the intermediate | middle support part 3d of the indoor unit 1 which concerns on Embodiment 1 of this invention. It is a figure when the wind direction vane 4 is fitted by the intermediate support part 3d via the intermediate shaft 4a of the indoor unit 1 which concerns on Embodiment 1 of this invention. It is a figure showing the structural example of the air conditioner which concerns on Embodiment 3 of this invention.

  Hereinafter, an indoor unit and the like according to an embodiment of the present invention will be described with reference to the drawings. In the following drawings, the same reference numerals denote the same or corresponding parts, and are common to all the embodiments described below. And the form of the component represented by the whole specification is an illustration to the last, Comprising: It does not limit to the form described in the specification. In particular, the combination of the components is not limited to the combination in each embodiment, and the components described in the other embodiments can be applied to another embodiment. In addition, the upper side in the figure will be described as “upper side” and the lower side will be described as “lower side”. In the drawings, the relationship between the sizes of the constituent members may be different from the actual one.

Embodiment 1 FIG.
1 is a perspective view showing an installed state of an indoor unit 1 according to Embodiment 1 of the present invention. In the present embodiment, as a typical example of an indoor unit, a four-way cassette type indoor unit 1 having a ceiling-embedded type that can be embedded in a ceiling in a room and having outlets in four directions will be described. The indoor unit 1 is connected to an outdoor unit (not shown) through a refrigerant pipe, and constitutes a refrigerant circuit that circulates the refrigerant and performs refrigeration, air conditioning, and the like.

  As shown in FIG. 1, the indoor unit 1 of this Embodiment is provided with the box-shaped housing | casing 2 which has a top plate and a side plate and opens toward indoor space (space to be air-conditioned). Hanging brackets 5 are attached to the four corners of the housing 2. On the other hand, four suspension bolts 7 are suspended from the ceiling, and the indoor unit 1 is fixed and installed on the ceiling by fastening the suspension fitting 5 at an arbitrary position of the suspension bolt 7.

  Moreover, the housing | casing 2 accommodates the indoor unit heat exchanger etc. which heat-exchange the indoor air blower and room air which are not shown in figure. Below the indoor unit 1, a decorative panel 3 having a substantially rectangular shape in plan view, which is a design surface (exterior surface) of the indoor unit 1, is attached to face the indoor space. In the vicinity of the center of the decorative panel 3, a suction grill 3 a serving as an air inlet into the indoor unit 1 is provided together with a dust removal filter. In addition, air outlets 3 b are formed along each side of the decorative panel 3 on each side of the decorative panel 3. Each outlet 3b is provided with a wind vane 4. Here, in this Embodiment, the blower outlet 3b and the wind direction vane 4 shall be formed in the rectangular shape with a long side long compared with a short side.

  FIG. 2 is a diagram showing the relationship between the wind direction vane 4 and the intermediate support portion 3d of the indoor unit 1 according to Embodiment 1 of the present invention. The wind direction vane 4 has an intermediate shaft 4a. A wind direction vane (flap, louver) 4 serving as a wind direction deflecting plate controls, for example, the blowing direction (wind direction) of air blown from the indoor unit 1. The wind direction vane 4 of the present embodiment has a cylindrical intermediate shaft 4a.

  On the other hand, the decorative panel 3 has an intermediate support portion 3d. The intermediate support portion 3d has a bearing hole 3c and supports the intermediate shaft 4a inserted into the bearing hole 3c. Here, in the indoor unit 1 of the present embodiment, the intermediate support portion 3d is formed integrally with the decorative panel 3. For this reason, the intermediate support portion 3d does not come off from the decorative panel 3.

  Moreover, in this Embodiment, the bearing component 8 is attached to the bearing hole 3c (intermediate support part 3d). For this reason, the intermediate shaft 4a is not inserted directly into the bearing hole 3c, but the intermediate shaft 4a is inserted through the bearing component 8. The bearing component 8 is made of a material different from the wind direction vane 4 such as polyacetal (POM). For example, in order to make the texture and the like look the same from the viewpoint of design and the like, the decorative panel 3 and the wind direction vane 4 often have to be made of the same material. When members of the same material rub against each other, a loud noise is generated. Therefore, by using different materials for the bearing component 8 and the wind direction vane 4, it is possible to suppress the sound generated by the rotation of the intermediate shaft 4a.

  FIG. 3 is a diagram when the wind direction vane 4 is fitted to the intermediate support portion 3d via the intermediate shaft 4a of the indoor unit 1 according to Embodiment 1 of the present invention. The bearing component 8 has claw portions 8a in at least two places, and is inserted into the bearing hole 3c to be fitted. As shown in FIG. 3, the claw portion 8a serves as a stopper, and the bearing component 8 does not come out of the intermediate support portion 3d. Further, since it is not completely fixed to the intermediate support portion 3d, it can rotate with the rotation of the intermediate shaft 4a. For this reason, even if it provides the bearing component 8, the intermediate shaft 4a (wind direction vane 4) can be rotated, without disturbing.

  As described above, according to the indoor unit 1 of the present embodiment, the intermediate support portion 3d that supports the wind direction vane 4 at the central portion of the outlet 3b is integrally formed with the decorative panel 3, so the intermediate support portion The wind direction vane 4 can be supported while preventing 3d from coming off the decorative panel 3. For this reason, the reliability of the indoor unit 1 can be improved. Further, since the bearing part 8 such as POM made of a material different from that of the intermediate shaft 4a is provided between the intermediate support portion 3d and the intermediate shaft 4a, it is possible to suppress the generation of sound due to the rotation of the wind direction vane 4. .

Embodiment 2. FIG.
In the first embodiment described above, one intermediate support portion 3d is formed on the decorative panel 3, and one intermediate shaft 4a is formed on the wind direction vane 4. However, the present invention is not limited to this. A plurality of each may be formed.

Embodiment 3 FIG.
FIG. 4 is a diagram illustrating a configuration example of an air conditioner according to Embodiment 3 of the present invention. Here, FIG. 4 shows an air conditioner as an example of a refrigeration cycle apparatus. In FIG. 4, the same operations as those described in FIG. 1 and the like are performed. The air conditioner of FIG. 4 connects the outdoor unit (outdoor unit) 200 and the indoor unit (indoor unit) 1 described in the first embodiment through the gas refrigerant pipe 300 and the liquid refrigerant pipe 400. The outdoor unit 200 includes a compressor 210, a four-way valve 220, an outdoor heat exchanger 230, and an expansion valve 240.

  The compressor 210 compresses and discharges the sucked refrigerant. Here, although not particularly limited, the compressor 210 can change the capacity of the compressor 210 (the amount of refrigerant sent out per unit time) by arbitrarily changing the operating frequency, for example, by an inverter circuit or the like. You may be able to. The four-way valve 220 is a valve that switches the flow of the refrigerant, for example, between the cooling operation and the heating operation.

  Outdoor heat exchanger 230 in the present embodiment performs heat exchange between the refrigerant and air (outdoor air). For example, it functions as an evaporator during heating operation, evaporating and evaporating the refrigerant. Moreover, it functions as a condenser during the cooling operation, and condenses and liquefies the refrigerant.

  An expansion valve 240 such as a throttle device (flow rate control means) decompresses the refrigerant to expand it. For example, in the case of an electronic expansion valve or the like, the opening degree is adjusted based on an instruction from a control device (not shown) or the like. For example, the indoor heat exchanger 110 performs heat exchange between air to be air-conditioned and a refrigerant. During heating operation, it functions as a condenser and condenses and liquefies the refrigerant. Moreover, it functions as an evaporator during cooling operation, evaporating and evaporating the refrigerant.

  First, the cooling operation in the refrigeration cycle apparatus will be described based on the refrigerant flow. In the cooling operation, the four-way valve 220 is switched so as to have a connection relationship indicated by a solid line. The high-temperature and high-pressure gas refrigerant compressed and discharged by the compressor 210 passes through the four-way valve 220 and flows into the outdoor heat exchanger 230. The refrigerant (liquid refrigerant) condensed and liquefied by passing through the outdoor heat exchanger 230 and exchanging heat with outdoor air flows into the expansion valve 240. The refrigerant that has been decompressed by the expansion valve 240 and is in a gas-liquid two-phase state flows out of the outdoor unit 200.

  The gas-liquid two-phase refrigerant that has flowed out of the outdoor unit 200 passes through the liquid refrigerant pipe 400 and flows into the indoor unit 1. Then, it is distributed by a distributor and a flow rate adjusting capillary (not shown) and flows into the indoor heat exchanger 110. As described above, the refrigerant (gas refrigerant) evaporated and gasified by passing through the indoor heat exchanger 110 and exchanging heat with air to be air-conditioned, for example, flows out of the indoor unit 1.

  The gas refrigerant flowing out from the indoor unit 1 passes through the gas refrigerant pipe 300 and flows into the outdoor unit 200. Then, it passes through the four-way valve 220 and is sucked into the compressor 210 again. As described above, the refrigerant of the air conditioner circulates and performs air conditioning (cooling).

  Next, the heating operation will be described based on the refrigerant flow. In the heating operation, the four-way valve 220 is switched so as to have a connection relationship indicated by a dotted line. The high-temperature and high-pressure gas refrigerant compressed and discharged by the compressor 210 passes through the four-way valve 220 and flows out of the outdoor unit 200. The gas refrigerant that has flowed out of the outdoor unit 200 passes through the gas refrigerant pipe 300 and flows into the indoor unit 1.

  The refrigerant condensed and liquefied by passing through the indoor heat exchanger 110 and exchanging heat with air to be air-conditioned, for example, passes through the distributor and a flow rate adjusting capillary (not shown) and flows out of the indoor unit 1. .

  The refrigerant flowing out of the indoor unit 1 passes through the liquid refrigerant pipe 400 and flows into the outdoor unit 200. Then, the refrigerant that has been decompressed by the expansion valve 240 and is in a gas-liquid two-phase state flows into the outdoor heat exchanger 230. Then, the refrigerant (liquid refrigerant) evaporated and gasified by passing through the outdoor heat exchanger 230 and exchanging heat with outdoor air passes through the four-way valve 220 and is sucked into the compressor 210 again. As described above, the refrigerant of the air conditioner circulates and performs air conditioning (heating).

  In the above-described embodiment, the indoor unit 1 has been described as a four-way cassette type indoor unit that has the wind direction vanes 4 at the four outlets 3b and blows out air in four directions, but the present invention is limited to this. is not. For example, the present invention can also be applied to other ceiling-embedded indoor units corresponding to two-way and three-way air flows. Further, the present invention can be applied not only to the ceiling-embedded indoor unit but also to other types of indoor units. Further, the number of the air outlets 3b and the wind direction vanes 4 is not limited.

  In the above-described embodiment, the air conditioner has been described as an example of the refrigeration cycle apparatus. However, the present invention is not limited to this. For example, the present invention can be applied to other refrigeration cycle apparatuses such as a refrigeration apparatus and a refrigeration apparatus. Moreover, it can be applied not only to the refrigeration cycle apparatus but also to a blower, a ventilator or the like.

  DESCRIPTION OF SYMBOLS 1 Indoor unit, 2 housing | casing, 3 decorative panel, 3a suction grille, 3b blower outlet, 3c bearing hole, 3d intermediate support part, 4 wind direction vane, 4a intermediate shaft, 5 suspension bracket, 7 suspension bolt, 8 bearing component, 8a Claw part, 110 indoor heat exchanger, 200 outdoor unit, 210 compressor, 220 four-way valve, 230 outdoor heat exchanger, 240 expansion valve, 300 gas refrigerant pipe, 400 liquid refrigerant pipe.

Claims (4)

A decorative panel having an air outlet opening in a rectangular shape;
An indoor unit that is formed in a rectangular shape that matches the shape of the air outlet and includes a wind direction vane that rotates around a rotation axis and changes the direction of air blown from the air outlet,
The wind direction vane has an intermediate shaft that rotates in accordance with the rotation shaft in the rectangular long-side intermediate portion,
A bearing hole is formed in the decorative panel, and an intermediate support portion that supports the intermediate shaft is integrally formed.
An indoor unit comprising a bearing component made of a material different from that of the wind direction vane and fitted into the bearing hole.   The indoor unit according to claim 1, wherein the bearing component is made of polyacetal.   The indoor unit according to claim 1 or 2, wherein the bearing part has claws at least in two places and is locked in the bearing hole.   An air conditioner comprising the indoor unit according to any one of claims 1 to 3 and an outdoor unit to perform air conditioning.

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