JP2020148433A - Holding clip of distributing plate - Google Patents

Abstract

To provide a holding clip capable of holding a distributing plate at a prescribed position in a blowout port.SOLUTION: A holding clip 50 for holding a distributing plate disposed inside a cylindrical heat insulating body that defines an air flow path of a blowout port adapter for blowing out temperature-controlled air, includes a fixing part 51 that sandwiches an end wall in a downstream side of an airflow, and a pair of claw parts 52a and 52b that are connected to the fixing part 51 and sandwich both sides of the distributing plate to hold the distributing plate.SELECTED DRAWING: Figure 6

Description

The present disclosure relates to a holding clip of a straightening vane. More specifically, the present invention relates to a holding clip of a straightening vane provided at an outlet of a spot type air conditioner.

Conventionally, spot-type air conditioning that locally or partially blows cold air or hot air to workers and articles has been adopted in factories and workplaces. In an air conditioner or an air conditioner unit that performs such spot-type air conditioning, it is required to efficiently supply cold air or hot air to a place or region to be air-conditioned at a predetermined speed, and for that purpose, for example, a mechanism for rectifying the air flow. Is proposed at the air outlet (see, for example, Patent Document 1).

In the spot type air conditioner described in Patent Document 1, a rectifying portion made of a honeycomb body is arranged on a frame body portion provided at an opening of the blowing device, and the rectifying portion directs the flow of air conditioning air to the opening. It is rectified along the axial direction of the part.

Japanese Unexamined Patent Publication No. 2012-122695

However, the rectifying unit described in Patent Document 1 is simply placed on the frame body unit. Therefore, there is a risk that the rectifying portion will come off from the frame portion due to vibration during transportation. In addition, the rectifying portion may contract due to the heat generated during heating and may come off from the frame portion.

It is an object of the present disclosure to provide a holding clip capable of holding a straightening vane in a predetermined position at an outlet.

The holding clip of the straightening vane of the present disclosure (hereinafter, also simply referred to as “holding clip”) is
(1) A holding clip for holding a straightening vane arranged in a tubular heat insulating body that defines a flow path of the air of an air outlet adapter for blowing out temperature-controlled air.
In the heat insulating body, a fixing portion for sandwiching the end wall on the downstream side of the air flow, and
It is connected to the fixed portion and includes a pair of claw portions that hold both sides of the straightening vane.

In the holding clip of the present disclosure, the straightening vane can be held at a predetermined position of the heat insulating body by sandwiching the end wall of the heat insulating body with the fixing portion in a state where the straightening vane is sandwiched between a pair of claws.

(2) In the holding clip of (1), it is desirable that a cushioning material is provided on the surface of the pair of claws facing the straightening vane. In this case, by disposing a cushioning material between the straightening vane and the claw portion, it is possible to suppress the contact between the straightening vane and the claw portion and generation of sound during transportation or use.

(3) In the holding clip of (1) or (2), it is desirable that the pair of claws have a length that does not protrude into the air flow path. In this case, the holding clip does not disturb the air flow. In addition, the holding clip is not visible when the air outlet adapter is viewed from the front, which is aesthetically pleasing.

(4) In the holding clips (1) to (3), it is desirable that the fixing portion and the pair of claw portions are integrally formed from a single metal plate material. In this case, the holding clip can be obtained easily and at low cost.

It is a figure explaining the refrigerant piping system of the air conditioning system including the air conditioner to which the holding clip of this disclosure can be applied. It is a perspective explanatory view of the air conditioner seen from the front. It is a front view of the air outlet adapter. FIG. 3 is a sectional view taken along line AA of the outlet adapter shown in FIG. It is an exploded perspective view of the outlet adapter shown in FIG. It is a perspective explanatory view which shows one Embodiment of the holding clip of this disclosure. It is a perspective explanatory view which shows the other embodiment of the holding clip of this disclosure.

Hereinafter, the holding clip of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that the present disclosure is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

[Overall configuration of air conditioning system]
FIG. 1 is a diagram illustrating a refrigerant piping system of an air conditioning system A including an air conditioner (indoor unit) 2 to which the holding clip of the present disclosure can be applied, and FIG. 2 is a diagram showing an indoor unit shown in FIG. It is a perspective explanatory view which looked at 2 from the front. The air conditioning system A is a distributed air conditioner of a refrigerant piping system, and heats and cools the inside of a building by performing a steam compression refrigeration cycle operation.

The air conditioning system A is mainly installed in a factory or the like to locally or partially cool or warm the space in an open building such as a factory or a workplace. The air conditioning system A includes a heat source unit 1 installed outside the building, a plurality of indoor units 2 installed inside the building, a liquid refrigerant connecting pipe 3 connecting the heat source unit 1 and the indoor unit 2, and a gas refrigerant connecting pipe. 4 and. In the building, the indoor unit 2 may be installed on the floor surface, may be hung from a beam on the ceiling, or may be supported by a pillar. In FIG. 1, only two indoor units 2 are drawn for the sake of clarity, but three or more indoor units 2 may be provided.

The heat source unit 1 includes a compressor 5, a four-way switching valve 6, a heat source side heat exchanger 7, a heat source side expansion valve 8, a liquid side closing valve 9, and a gas side closing valve 10.

The compressor 5 is a closed-type compressor driven by a motor (not shown) for the compressor, and sucks gas refrigerant from the suction flow path 11.
The four-way switching valve 6 is a mechanism for switching the direction of the refrigerant flow. During the cooling operation, as shown by the solid line in FIG. 1, the four-way switching valve 6 connects the refrigerant pipe 12 on the discharge side of the compressor 5 and one end of the heat exchanger 7 on the heat source side, and also connects the compressor 5. The suction flow path 11 on the suction side and the gas side closing valve 10 are connected. As a result, the heat source side heat exchanger 7 functions as a condenser of the refrigerant compressed by the compressor 5, and the utilization side heat exchanger 13, which will be described later, evaporates the refrigerant condensed in the heat source side heat exchanger 7. Functions as a vessel.

Further, during the heating operation, as shown by the broken line in FIG. 1, the four-way switching valve 6 connects the refrigerant pipe 12 on the discharge side of the compressor 5 and the gas side closing valve 10 and connects with the suction flow path 11. Connect to one end of the heat source side heat exchanger 7. As a result, the utilization side heat exchanger 13 functions as a condenser of the refrigerant compressed by the compressor 5, and the heat source side heat exchanger 7 is an evaporator of the refrigerant cooled in the utilization side heat exchanger 13. Functions as.

The heat source unit 1 includes a heat source side fan 14 for taking in outside air into the heat source unit 1 and discharging the outside air that has been heat exchanged with the refrigerant flowing through the heat source side heat exchanger 7 to the outside.

The indoor unit 2 is connected to the heat source unit 1 via the refrigerant connecting pipes 3 and 4, respectively. The indoor unit 2 has the same outer shape and internal structure. The indoor unit 2 includes a liquid refrigerant pipe 17, a user-side expansion valve 18, a user-side heat exchanger 13, a gas refrigerant pipe 20, and a user-side fan 21. The user-side fan 21 sucks indoor air into the unit, and supplies the air heat-exchanged with the refrigerant flowing through the user-side heat exchanger 19 indoors via an outlet adapter described later.

[Operation of air conditioning system]
The air conditioning system A having the above-described configuration performs a cooling operation or a heating operation as follows.
During the cooling operation, as described above, the four-way switching valve 6 is in the state shown by the solid line in FIG. In this state, the high-pressure gas refrigerant discharged from the compressor 5 is sent to the heat source side heat exchanger 7 functioning as a condenser via the four-way switching valve 6, and the outside air supplied by the heat source side fan 14. It is cooled by exchanging heat with. The high-pressure refrigerant cooled and liquefied in the heat source side heat exchanger 7 is sent to each indoor unit 2 via the liquid refrigerant connecting pipe 3. The refrigerant sent to each indoor unit 2 is decompressed by the utilization side expansion valve 18 to become a low-pressure gas-liquid two-phase state refrigerant, and heat exchanges with indoor air in the utilization side heat exchanger 13 that functions as an evaporator. Then, it evaporates to become a low-pressure gas refrigerant. The low-pressure gas refrigerant heated in the user-side heat exchanger 13 is sent to the heat source unit 1 via the gas refrigerant connecting pipe 4, and is sucked into the compressor 5 again via the four-way switching valve 6.

On the other hand, during the heating operation, as described above, the four-way switching valve 6 is in the state shown by the broken line in FIG. In this state, the high-pressure gas refrigerant discharged from the compressor 5 is sent to each indoor unit 2 via the four-way switching valve 6 and the gas refrigerant connecting pipe 4. The high-pressure gas refrigerant sent to each indoor unit 2 is sent to the utilization side heat exchanger 13 that functions as a condenser, exchanges heat with the outdoor air to cool it, and then passes through the utilization side expansion valve 18. Then, it is sent to the heat source unit 1 via the liquid refrigerant connecting pipe 3. The high-pressure refrigerant sent to the heat source unit 1 is decompressed by the heat source-side expansion valve 8 to become a low-pressure gas-liquid two-phase state refrigerant, and flows into the heat source-side heat exchanger 7 that functions as an evaporator. The low-pressure gas-liquid two-phase refrigerant that has flowed into the heat source-side heat exchanger 7 exchanges heat with the outside air supplied by the heat-source-side fan 14, is heated, and evaporates to become a low-pressure refrigerant. The low-pressure gas refrigerant exiting the heat source side heat exchanger 7 is sucked into the compressor 5 again via the four-way switching valve 6.

[Indoor unit]
As shown in FIG. 2, the indoor unit 2 includes a main body portion 30 and an outlet adapter 40. The main body 30 has a box-shaped casing 31, and devices or elements such as the above-mentioned use-side expansion valve 18, user-side heat exchanger 13, and use-side fan 21 are housed in the casing 31. .. The air outlet adapter 40 is attached to the front surface 31a of the casing 31 of the main body 30. On this surface 31a, a blowout opening 32 for blowing out air whose temperature has been adjusted by the indoor unit 2 is formed.

[Air outlet adapter]
FIG. 3 is a front view of the outlet adapter 40, FIG. 4 is a sectional view taken along line AA of the outlet adapter 40 shown in FIG. 3, and FIG. 5 is an outlet shown in FIGS. 2 to 4. It is a disassembled perspective portion of the adapter 40.
The air outlet adapter 40 is attached to the main body 30 of the indoor unit 2 in order to blow out the temperature-controlled air toward the place or region to be air-conditioned. The air outlet adapter 40 includes a tubular main body 41 and a straightening vane 42 having a honeycomb structure, which is arranged in an air flow path in the main body 41. The main body 41 in the present embodiment has a short tubular shape and is made of a metal such as a zinc steel plate. Inside the main body 41, a cylindrical heat insulating body 44 that defines the air flow path 43 is arranged. The straightening vane 42 is arranged in the flow path 43 defined by the heat insulating body 44. The straightening vane 42 has a substantially circular shape corresponding to the shape of the inner peripheral surface of the heat insulating body 44.

The main body 41 has a rear wall surface 45 (see FIG. 5) provided with a flange 45a on the upstream side (right side in FIG. 4) in the air flow direction. The outlet adapter 40 is attached to the main body 30 using the flange 45a. The rear wall surface 45 has a circular opening 45b, and the heat insulating body 44 is inserted into the opening 45. Further, the main body 41 has a front wall surface 46 having a circular opening formed on the downstream side in the air flow direction. A cylindrical guide 47 is attached to the peripheral edge of the opening of the front wall surface 46. The air that has passed through the straightening vane 42 is guided by the guide 47 along the axial direction of the guide and blown out toward a place or region to be air-conditioned. As a result, cold air or hot air can be efficiently supplied to the place or region.

The heat insulating body 44 is made of a foam of a synthetic resin such as polystyrene. The heat insulating body 44 has a collar portion 44a on one end side in the axial direction (end side on the upstream side in the air flow direction). When the heat insulating body 44 is inserted into the main body 41, the flange portion 44a comes into contact with the peripheral edge of the opening 45b of the rear wall surface 45 (see FIG. 4). In the present embodiment, in addition to the heat insulating body 44, the heat insulating bodies 48 and 49 are also arranged on the back surface 46b of the front wall surface 46 of the main body 41 and the inner peripheral surface 47a of the guide 47, respectively. As a result, it is possible to suppress the occurrence of dew condensation on the outer surface of the metal main body 41 during cooling.

The straightening vane 42 is arranged in the heat insulating body 44 so as to be substantially flush with the end face 44b on the downstream side in the air flow direction of the heat insulating body 44 (see FIG. 4). As shown in FIG. 5, four holding clips 50 are arranged at equal intervals on the peripheral edge of the straightening vane 42. As shown in FIG. 6, the holding clip 50 has a U-shaped fixing portion 51 and a pair of claw portions 52a and 52b connected to the fixing portion 51. The fixing portion 51 has a size capable of sandwiching the end wall 44c on the downstream side in the air flow direction of the heat insulating body 44, and the distance between the pair of claw portions 52a and 52b is a size capable of sandwiching the straightening vane 42. .. As shown in FIG. 5, the peripheral edges of the straightening vane 41 are sandwiched between the pair of claws 52a and 52b at predetermined intervals, and in this state, the straightening vane 41 is sandwiched between the fixing portions 51 and the end wall 44c of the heat insulating body 44. It is arranged in the flow path 43 of the heat insulating body 44. Then, the heat insulating body 44 in which the straightening vane 41 is arranged is inserted into the opening 45b of the rear wall surface 45 of the main body 41. It is easier to insert the straightening vane 42 sandwiched between the holding clips 50 into the heat insulating body 44 than to insert the straightening vane 42 alone into the heat insulating body 44. By using the holding clip 50, the workability of the disposition work of the straightening vane 42 in the heat insulating body 44 can be improved.

The holding clip 50 can be manufactured by processing a plate material made of a metal such as iron, aluminum, or zinc steel plate. The thickness of the plate material is not particularly limited, but may be, for example, 0.4 to 1.2 mm. Since the holding clip 50 according to the present embodiment can be integrally manufactured by processing one metal plate material without going through a process such as adhesion, the holding clip 50 can be easily and inexpensively manufactured. Can be obtained.

In the holding clip 50 according to the present embodiment, the cushioning material 53 is fixed to the surface of the pair of claws 52a and 52b facing the heat insulating body 44. The straightening vane 42 is sandwiched between the pair of claws 52a and 52b via the cushioning material 53. The cushioning material 53 can be made of a synthetic resin such as polystyrene, ethylene propylene diene rubber, or the like. The thickness of the cushioning material 53 is not particularly limited, but is usually about 2 to 10 mm. By using the cushioning material 53, it is possible to prevent the rectifying plate 42 from coming into contact with the pair of claws 52a and 52b to generate sound during transportation or use.

Further, the holding clip 50 according to the present embodiment is set so that the lengths of the pair of claws 52a and 52b do not protrude into the air flow path defined by the heat insulating body 44. Therefore, the air flow is not disturbed by attaching the holding clip 50 to the straightening vane 42. Further, since the holding clip 50 is not visible when the outlet adapter 40 is viewed from the front side, it is aesthetically pleasing.

Further, since both sides of the straightening vane 42 are sandwiched between the pair of claws 52a and 52b, even if the shape and size (thickness and diameter) of the straightening vane 42 are slightly varied when the straightening vane 42 is processed. The straightening vane 42 can be held by absorbing such variations.

FIG. 7 is a perspective explanatory view showing a holding clip 60 according to another embodiment of the present disclosure. Unlike the holding clip 50 shown in FIG. 6, the holding clip 60 has a separately manufactured fixing portion 61 and a claw body 62 having a pair of claw portions 62a and 62b fixed to each other by an adhesive or the like. One end of one claw portion 62a and one end of the other claw portion 62b are connected to each other via an intermediate portion 62c. The fixing portion 61 and the claw body 62 are both substantially U-shaped members.

A receiving portion 63 that is inclined in a direction away from the claw portion 62b is formed on the tip end side of the claw portion 62a. As a result, the holding clip 60 can be easily attached to the straightening vane 41. Further, the claw portion 62a excluding the receiving portion 63 is bent in a direction approaching the claw portion 62b. Therefore, when the claw portion 62 is attached to the straightening vane 41, the claw portion 62a is deformed in a direction slightly separated from the claw portion 62b. As a result, the holding of the straightening vane 41 by the holding clip 60 can be further strengthened by utilizing the elastic force of the claw portion 62a.

By holding the straightening vane 42 using the holding clips 50 and 60 according to the present embodiment, it is possible to prevent the straightening vane 42 from coming off the heat insulating body 44 due to vibration during transportation. Further, it is possible to prevent the rectifying plate 42 from contracting due to the heat during heating and coming off from the heat insulating body 44.

[Other variants]
The present disclosure is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims.
For example, in the above-described embodiment, one straightening vane 42 is held at a predetermined position of the heat insulating body 44 by using four holding clips 50, but the number of holding clips 50 may be 3 or less, or 5 or more. Good.
Further, in the above-described embodiment, the holding clip 50 is manufactured by processing a metal plate, but it can also be manufactured by using a synthetic resin.

1: Heat source unit 2: Indoor unit (air conditioner)
13: User-side heat exchanger 18: User-side expansion valve 21: User-side fan 30: Main body 31: Casing 32: Outlet opening 40: Outlet adapter 41: Main body 42: Straightening plate 43: Flow path 44: Insulation body 44a : Collar 45: Rear wall surface 46: Front wall surface 47: Guide 50: Holding clip 51: Fixing portion 52a: Claw portion 52b: Claw portion 53: Cushioning material 60: Holding clip 61: Fixing portion 62a: Claw portion 62b: Claw portion 62c: Middle part 63: Receiving part A: Air conditioning system

Claims (4)

A holding clip for holding the straightening vane (42) disposed in the tubular heat insulating body (44) defining the air flow path of the air outlet adapter (40) for blowing out the temperature-controlled air. (50)
In the heat insulating body (44), a fixing portion (51) for sandwiching the end wall (44c) on the downstream side of the air flow, and
A holding clip for a straightening vane, which is connected to the fixed portion (51) and includes a pair of claws (52a, 52b) that hold both sides of the straightening vane (42). (50). The holding clip (50) for a straightening vane according to claim 1, wherein a cushioning material (53) is disposed on a surface of the pair of claws (52a, 52b) facing the straightening vane (42). The holding clip (50) for a straightening vane according to claim 1 or 2, wherein the pair of claws (52a, 52b) has a length that does not protrude into the air flow path. The holding clip for a straightening vane according to any one of claims 1 to 3, wherein the fixing portion (51) and the pair of claw portions (52a, 52b) are integrally formed from a single metal plate material. 50).

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