CN115968433A - Outdoor unit of air conditioner - Google Patents
Outdoor unit of air conditioner Download PDFInfo
- Publication number
- CN115968433A CN115968433A CN202080103382.4A CN202080103382A CN115968433A CN 115968433 A CN115968433 A CN 115968433A CN 202080103382 A CN202080103382 A CN 202080103382A CN 115968433 A CN115968433 A CN 115968433A
- Authority
- CN
- China
- Prior art keywords
- plate
- flange
- claw
- closing valve
- outdoor unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 66
- 210000000078 claw Anatomy 0.000 claims abstract description 54
- 239000003507 refrigerant Substances 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 abstract description 30
- 239000002184 metal Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
- F24F1/18—Heat exchangers specially adapted for separate outdoor units characterised by their shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
An outdoor unit of an air conditioner is provided with: a housing that houses a liquid pipe through which a liquid refrigerant flows and a gas pipe through which a gas refrigerant flows, and that has a sealing valve mounting plate on which a liquid sealing valve that seals the liquid pipe and a gas sealing valve that seals the gas pipe are provided; a heat exchanger provided in the casing, for exchanging heat between the refrigerant and the air, and having a side plate extending in a vertical direction and connected to a liquid pipe and a gas pipe, the side plate including: a plate main body having a hole into which a liquid pipe and a gas pipe are inserted, and a flange extending from the plate main body toward the seal valve mounting plate side and having a cutout formed between the flange and an upper end of the plate main body, the seal valve mounting plate including: the flange clamping device comprises a butting main body which is butted with one surface of the flange, a first claw which is arranged at the upper end part of the butting main body and is inserted into the notch part, and a second claw which is arranged at a position lower than the first claw and is butted with the other surface of the flange and clamps the flange together with the butting main body.
Description
Technical Field
The present disclosure relates to an outdoor unit of an air conditioner having a sealing valve mounting plate provided with a liquid sealing valve and a gas sealing valve.
Background
Conventionally, there is known an outdoor unit of an air conditioner including a casing provided with a liquid sealing valve and a gas sealing valve. The liquid closing valve is a valve that is provided in a liquid pipe through which a refrigerant in a liquid state flows, and closes by blocking the flow of the refrigerant. The gas shutoff valve is a valve that is provided in a gas pipe through which a refrigerant in a gas state flows, and shuts off the flow of the refrigerant. Patent document 1 discloses an outdoor unit of an air conditioner in which a liquid sealing valve and a gas sealing valve are provided not on a bottom panel of a casing but on an operation valve bracket attached to a side surface.
Patent document 1: japanese laid-open patent publication No. 7-55194
However, in the outdoor unit disclosed in patent document 1, the operation valve bracket is supported by the liquid pipe and the gas pipe until the operation valve bracket is fixed to the casing. Therefore, the liquid pipe and the gas pipe may be damaged by the stress applied to the liquid pipe and the gas pipe by the vibration of the operation valve bracket before the operation valve bracket is fixed by the screw. Further, since the operation valve bracket is supported by the liquid pipe and the gas pipe until the operation valve bracket is fixed to the housing, the stability of fixing the operation valve bracket by the screw is insufficient. Therefore, when the screw is used for fixing, the screwdriver bit may be mistakenly contacted with a fin, a liquid pipe, a gas pipe, a liquid closing valve, a gas closing valve, or the like of the heat exchanger, and may be damaged. In this way, it is desirable to stabilize the closing valve mounting plate such as the operating valve bracket before the closing valve mounting plate is fixed.
Disclosure of Invention
The present disclosure has been made to solve the above problems, and an object of the present disclosure is to provide an outdoor unit of an air conditioner in which a sealing valve attachment plate is stabilized before the sealing valve attachment plate is fixed.
The outdoor unit of an air conditioner of the present disclosure includes: a housing that houses a liquid pipe through which a liquid refrigerant flows and a gas pipe through which a gas refrigerant flows, and that has a sealing valve mounting plate provided with a liquid sealing valve that seals the liquid pipe and a gas sealing valve that seals the gas pipe; and a heat exchanger provided in the casing, for exchanging heat between the refrigerant and the air, and having a side plate extending in the vertical direction to which a liquid pipe and a gas pipe are connected at a side surface, the side plate having: a plate body having a hole into which a liquid pipe and a gas pipe are inserted; and a flange extending from the plate body toward the closing valve mounting plate side and having a cutout formed between the flange and an upper end portion of the plate body, the closing valve mounting plate including: an abutting body abutting against one surface of the flange; a first claw which is arranged at the upper end part of the abutting main body and is inserted into the notch part; and a second claw provided below the first claw, abutting against the other surface of the flange, and sandwiching the flange together with the abutting body.
According to the present disclosure, the first claw is inserted into the cutout portion of the flange, and the second claw and the abutment body sandwich the flange, whereby the closing valve mounting plate is supported on the side plate of the heat exchanger. Therefore, the closing valve attachment plate can be stabilized until the closing valve attachment plate is finally fixed.
Drawings
Fig. 1 is a circuit diagram showing an air conditioner according to embodiment 1.
Fig. 2 is an assembled perspective view showing an outdoor unit according to embodiment 1.
Fig. 3 is an exploded perspective view showing an outdoor unit according to embodiment 1.
Fig. 4 is an exploded perspective view showing a machine chamber of an outdoor unit according to embodiment 1.
Fig. 5 is an exploded perspective view showing the rear surface of the outdoor unit according to embodiment 1.
Fig. 6 is a perspective view showing a side plate according to embodiment 1.
Fig. 7 is a rear view showing an upper portion of a side flat plate according to embodiment 1.
Fig. 8 is a perspective view showing a closing valve attachment plate according to embodiment 1.
Fig. 9 is a front view showing a closing valve mounting plate according to embodiment 1.
Fig. 10 is a front view showing a first claw of a closing valve attachment plate according to embodiment 1.
Fig. 11 is a perspective view showing a state in which the closing valve attachment plate of embodiment 1 is temporarily fixed to the side flat plate.
Fig. 12 is a front view showing a state in which the closing valve attachment plate of embodiment 1 is temporarily fixed to the side flat plate.
Detailed Description
Hereinafter, an embodiment of an outdoor unit of an air conditioner according to the present disclosure will be described with reference to the drawings. The present disclosure is not limited to the embodiments described below. In the following drawings including fig. 1, the relationship between the sizes of the respective components may be different from the actual one. In the following description, terms indicating directions are used as appropriate in order to facilitate understanding of the present disclosure, but these terms are used for the purpose of describing the present disclosure and do not limit the present disclosure. Examples of the terms indicating the direction include "up", "down", "right", "left", "front", and "rear".
Fig. 1 is a circuit diagram showing an air conditioner 1 according to embodiment 1. As shown in fig. 1, an air conditioner 1 is a device for adjusting air in an indoor space, and includes: an outdoor unit 2, and indoor units 3 connected to the outdoor unit 2 by refrigerant pipes 5. The outdoor unit 2 is provided with a compressor 6, a flow switching device 7, a heat exchanger 8, an outdoor fan 9, an expansion unit 10, a liquid shutoff valve 61, and a gas shutoff valve 71. The indoor unit 3 is provided with an indoor heat exchanger 11 and an indoor fan 12.
The compressor 6, the flow switching device 7, the heat exchanger 8, the expansion unit 10, and the indoor heat exchanger 11 are connected by refrigerant pipes 5 to constitute a refrigerant circuit 4 through which a refrigerant as a working gas flows. The compressor 6 sucks a low-temperature and low-pressure refrigerant, compresses the sucked refrigerant into a high-temperature and high-pressure refrigerant, and discharges the refrigerant. The flow switching device 7 switches the direction in which the refrigerant flows in the refrigerant circuit 4, and is, for example, a four-way valve. The heat exchanger 8 exchanges heat between, for example, outdoor air and refrigerant. The heat exchanger 8 functions as a condenser during the cooling operation and functions as an evaporator during the heating operation.
The outdoor blower 9 is a device that sends outdoor air to the heat exchanger 8. The expansion unit 10 is a decompression valve or an expansion valve that decompresses and expands the refrigerant. The expansion unit 10 is, for example, an electronic expansion valve whose opening degree is adjusted. The indoor heat exchanger 11 exchanges heat between, for example, indoor air and refrigerant. The indoor heat exchanger 11 functions as an evaporator during the cooling operation and functions as a condenser during the heating operation. The indoor fan 12 is a device that sends indoor air to the indoor heat exchanger 11. The liquid closing valve 61 is connected between the expansion unit 10 and the indoor heat exchanger 11, and closes the flow of the liquid refrigerant flowing through the refrigerant pipe 5. The gas shutoff valve 71 is connected between the flow switching device 7 and the indoor heat exchanger 11, and shuts off the flow of the refrigerant in a gas state flowing through the refrigerant pipe 5.
(operation mode, cooling operation)
Next, an operation mode of the air conditioner 1 will be described. First, the cooling operation will be described. In the cooling operation, the refrigerant sucked into the compressor 6 is compressed by the compressor 6 and discharged in a high-temperature and high-pressure gas state. The high-temperature and high-pressure refrigerant in a gas state discharged from the compressor 6 passes through the flow switching device 7, flows into the heat exchanger 8 functioning as a condenser, and is condensed and liquefied in the heat exchanger 8 by heat exchange with outdoor air sent by the outdoor air-sending device 9. The condensed refrigerant in the liquid state flows into the expansion unit 10, is expanded and decompressed in the expansion unit 10, and becomes a low-temperature and low-pressure refrigerant in a gas-liquid two-phase state. Then, the refrigerant in the gas-liquid two-phase state flows into the indoor heat exchanger 11 functioning as an evaporator, and is evaporated and gasified in the indoor heat exchanger 11 by heat exchange with the indoor air sent by the indoor air-sending device 12. At this time, the indoor air is cooled, and cooling is performed indoors. The evaporated refrigerant in a low-temperature and low-pressure gas state passes through the flow switching device 7 and is sucked into the compressor 6.
(operation mode, heating operation)
Next, the heating operation will be described. In the heating operation, the refrigerant sucked into the compressor 6 is compressed by the compressor 6 and discharged in a high-temperature and high-pressure gas state. The high-temperature and high-pressure refrigerant in a gas state discharged from the compressor 6 passes through the flow switching device 7, flows into the indoor heat exchanger 11 functioning as a condenser, and is condensed and liquefied in the indoor heat exchanger 11 by heat exchange with the indoor air sent by the indoor air-sending device 12. At this time, the indoor air is heated, and heating is performed in the room. The condensed refrigerant in the liquid state flows into the expansion section 10, and is expanded and decompressed in the expansion section 10 to become a low-temperature and low-pressure refrigerant in a gas-liquid two-phase state. The gas-liquid two-phase refrigerant flows into the heat exchanger 8 functioning as an evaporator, and is evaporated and gasified in the heat exchanger 8 by heat exchange with the outdoor air sent by the outdoor air-sending device 9. The evaporated refrigerant in a low-temperature and low-pressure gas state passes through the flow switching device 7 and is sucked into the compressor 6.
Fig. 2 is an assembled perspective view showing the outdoor unit 2 according to embodiment 1, and fig. 3 is an exploded perspective view showing the outdoor unit 2 according to embodiment 1. As shown in fig. 2 and 3, the outdoor unit 2 includes a casing 20 and an internal component 29.
(case 20)
The case 20 has leg portions 21, a bottom surface panel 22, a front surface panel 23, side rear surface panels 24, a closing valve mounting plate 30, a protective cover 25, a top surface panel 26, and a fan cover 27. The leg portions 21 are members that are provided on the floor surface on which the outdoor unit 2 is placed and support the bottom panel 22, and two, for example, are provided. The bottom panel 22 is a sheet metal that is provided above the leg portions 21 and supports the internal components 29 and the like. The front panel 23 is a sheet metal having an L-shaped cross section that is placed on the bottom panel 22 and covers the front surface and one side surface of the internal component 29. A case opening 23a through which air is blown out is formed in the front surface side of the internal component 29 in the front surface panel 23.
The side back panel 24 is a sheet metal that is placed on the bottom panel 22 and covers the other side surface and the lower portion of the back surface of the internal component 29. The closing valve attachment plate 30 is a metal plate attached to the heat exchanger 8 and covering an upper portion of the rear surface of the internal component 29. A maintenance window 31a for performing maintenance of the internal component 29 is formed in an upper portion of the sealing valve attachment plate 30. The protective cover 25 is attached to the closing valve attachment plate 30 and covers and protects the maintenance window 31a. The top panel 26 is a metal plate that is placed on the upper end portions of the front panel 23, the side back panel 24, and the closing valve attachment plate 30 and covers the upper surface of the internal component member 29. The fan cover 27 is a grid-like member provided to close the casing opening 23a formed in the front panel 23, and suppresses intrusion of foreign matter into the outdoor unit 2.
(internal component 29)
Next, the internal component 29 will be explained. As shown in fig. 2 and 3, the internal component 29 includes a compressor 6, a heat exchanger 8, a mounting base 9c, an outdoor fan 9, a partition plate 28, an electronic unit 13, a flow path switching device 7, an expansion unit 10, a liquid pipe 60, and a gas pipe 70.
The compressor 6 is mounted on the bottom panel 22. The heat exchanger 8 is, for example, L-shaped in cross section, and is placed on the bottom panel 22 to constitute the other side surface and a part of the rear surface of the outdoor unit 2, which is the other side surface side of the internal component 29. The mounting table 9c is a sheet metal extending from the floor panel 22 to the roof panel 26. The outdoor blower 9 has a motor 9a and a propeller fan 9b. The motor 9a drives the propeller fan 9b to rotate, and is provided at the center of the mounting table 9c. The propeller fan 9b is provided between the front panel 23 and the heat exchanger 8, and forms an air passage for sending air sucked from the rear surface of the outdoor unit 2 to the heat exchanger 8.
When the outdoor fan 9 is operated, air flows in from the outside of the outdoor unit 2 through the heat exchanger 8, and the inflowing air flows out from the casing opening 23a of the outdoor unit 2 through the propeller fan 9b. Thus, for example, in the cooling operation, the refrigerant flowing into the heat exchanger 8 is cooled by the air, and the air having passed through the heat exchanger 8 is superheated by heat exchange with the refrigerant.
The control board 13a is configured by dedicated hardware or a CPU (Central Processing Unit, also referred to as a Central Processing Unit, a Processing Unit, an arithmetic Unit, a microprocessor, a microcomputer, or a processor) that executes a program stored in a storage device. When the control board 13a is dedicated hardware, the control board 13a corresponds to, for example, a single Circuit, a composite Circuit, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination thereof. Each of the functional units realized by the control board 13a may be realized by separate hardware, or may be realized by one piece of hardware.
In the case where the control board 13a is a CPU, each function executed by the control board 13a is realized by software, firmware, or a combination of software and firmware. Software as well as firmware is described as a program. The CPU realizes each function by reading and executing a program. Further, a part of the functions of the control board 13a may be realized by dedicated hardware, and a part may be realized by software or firmware. The storage device may be configured as a hard disk, or may be configured as a volatile storage device such as a Random Access Memory (RAM) capable of temporarily storing data. The storage device may be a nonvolatile storage device such as a flash memory capable of storing data for a long period of time.
Fig. 4 is an exploded perspective view showing the machine chamber 20b of the outdoor unit 2 according to embodiment 1. Fig. 4 shows a state in which the flow path switching device 7, the expansion unit 10, and the closing valve attachment plate 30 are removed from the machine chamber 20b. As shown in fig. 4, the flow path switching device 7 is disposed above the compressor 6 in the machine room 20b. The expansion unit 10 is disposed behind the compressor 6 in the machine chamber 20b.
Fig. 5 is an exploded perspective view showing the rear surface of the outdoor unit 2 according to embodiment 1. As shown in fig. 4, the liquid pipe 60 is provided in the machine chamber 20b, and a liquid refrigerant flows therein. The gas pipe 70 is provided in the machine chamber 20b, and a refrigerant in a gas state flows therein. As shown in fig. 5, a liquid closing valve 61 for closing the liquid pipe 60 is provided at the end of the liquid pipe 60, and the liquid closing valve 61 is provided on the closing valve mounting plate 30. Further, a gas shutoff valve 71 for shutting off the gas pipe 70 is provided at the end of the gas pipe 70, and the gas shutoff valve 71 is provided on the shutoff valve mounting plate 30. Generally, the liquid sealing valve 61 and the gas sealing valve 71 are provided on the side surface of the outdoor unit 2. Embodiment 1 exemplifies the following: in order to improve the maintainability of the outdoor unit 2, the liquid blocking valve 61 and the gas blocking valve 71 are provided on the rear surface of the outdoor unit 2, assuming that the outdoor unit 2 is installed in a small house.
Fig. 6 is a perspective view showing a side plate 50 according to embodiment 1. Next, the heat exchanger 8 will be described in detail. As shown in fig. 4 and 6, the heat exchanger 8 houses a liquid pipe 60 and a gas pipe 70 together with the casing 20, and has a side plate 50 on a side surface. The side plate 50 is a metal plate connected to the liquid pipe 60 and the gas pipe 70 and extending in the vertical direction. The side plate 50 has a plate body 51 and a flange 52. The plate main body 51 is a plate-shaped member extending in the vertical direction, and a plurality of holes 51a into which the liquid pipe 60, the gas pipe 70, and the like are inserted are formed in the plate main body 51.
Fig. 7 is a rear view showing an upper portion of the side plate 50 according to embodiment 1. As shown in fig. 6, the flange 52 is a member extending from an end of the flat plate body 51 toward the closing valve attachment plate 30. The flange 52 is formed with a plurality of plate-side screw holes 52a, and the plurality of plate-side screw holes 52a are used for inserting screws for mounting the closing valve mounting plate 30 and the side plate 50. In embodiment 1, the case where two plate-side screw holes 52a are formed is exemplified, but three or more plate-side screw holes 52a may be formed. A cutout 50a is formed between the flange 52 and the upper end of the plate body 51. As shown in fig. 7, the cutout portion 50a expands upward of the flange 52.
Fig. 8 is a perspective view showing the sealing valve attachment plate 30 according to embodiment 1, and fig. 9 is a front view showing the sealing valve attachment plate 30 according to embodiment 1. Next, the closing valve mounting plate 30 will be described in detail. As shown in fig. 8 and 9, the closing valve attachment plate 30 is a rectangular plate-shaped member. The sealing valve mounting plate 30 includes a plate body 31, a top surface locking portion 32, a side surface locking portion 33, and a mounting portion 34. The plate body 31 has a rectangular shape, is provided with a liquid shutoff valve 61 and a gas shutoff valve 71 (see fig. 5), and is formed with a maintenance window 31a. The top surface locking portion 32 is a member extending upward from the upper end of the flat plate body 31, and the front end is bent to be hooked on the top surface plate 26. The side locking portion 33 is a member extending forward from one side of the flat plate body 31, and is engaged with the side rear panel 24.
The mounting portion 34 is a member provided on the other side of the plate body 31, and includes a contact body 35, a first claw 36, and a second claw 37. The contact body 35 is a plate-shaped member extending in a direction away from the plate body 31 from the other side of the plate body 31 and extending in the vertical direction. The contact body 35 is formed with a plurality of plate-side screw holes 35a, and the plurality of plate-side screw holes 35a are used for inserting screws for mounting the shut valve mounting plate 30 and the side plate 50. In embodiment 1, the case where two plate-side screw holes 35a are formed is exemplified, but three or more plate-side screw holes 35a may be formed.
Fig. 10 is a front view showing the first claw 36 of the closing valve attaching plate 30 according to embodiment 1. As shown in fig. 8, the first claw 36 is provided at the upper end portion of the abutment body 35 and inserted into a cutout portion 50a formed in the side plate 50. As shown in fig. 10, the first claw 36 has an inclined edge 36a inclined in such a manner as to taper from the base end to the leading end. The thickness of the first tab 36 is slightly smaller than the width of the cutout 50a of the side plate 50.
As shown in fig. 8, the second claw 37 is provided below the first claw 36, abuts against the other surface of the flange 52, and sandwiches the flange 52 together with the abutment body 35. Specifically, the abutment body 35 faces the back side of the flange 52, and the second claw 37 faces the front side of the flange 52. That is, the abutment body 35 is not visible from the front surface side of the housing 20, and the second claws 37 can be seen. The second tab 37 is not visible from the rear surface side of the housing 20, and the contact body 35 can be seen. In addition, the abutment body 35 and the second claw 37 do not overlap in a plan view. Thus, the second claw 37 is positioned on the front surface side of the contact main body 35 in a plan view.
The second claw 37 has a base end portion 38 and a tip end portion 39. The base end 38 abuts the other surface of the flange 52. The tip portion 39 is connected to the base end portion 38 and extends in a direction away from the flange 52.
Fig. 11 is a perspective view showing a state where the sealing valve attachment plate 30 according to embodiment 1 is temporarily fixed to the side plate 50, and fig. 12 is a front view showing a state where the sealing valve attachment plate 30 according to embodiment 1 is temporarily fixed to the side plate 50. Next, the operation of temporarily fixing the shut valve attachment plate 30 to the side plate 50 of the heat exchanger 8 will be described. First, the first claw 36 of the closing valve attachment plate 30 is inserted into the cutout portion 50a of the side plate 50. Here, the first claw 36 has an inclined edge 36a inclined in such a manner as to taper from the base end to the leading end. Thereby guiding the insertion of the first claw 36 into the cutout portion 50a. Therefore, the first claw 36 is smoothly inserted into the cutout portion 50a.
Further, the cutout portion 50a expands upward of the flange 52. Thereby further guiding the insertion of the first claw 36 into the cutout 50a. Therefore, the first claw 36 is smoothly inserted into the cutout portion 50a. As described above, in embodiment 1, the first tab 36 has the inclined edge 36a, and the cutout 50a expands upward of the flange 52, so that the first tab 36 is inserted into the cutout 50a more smoothly.
When the first claw 36 is inserted into the cutout portion 50a, the first claw 36 is caught by the cutout portion 50a, and thus the downward movement of the closing valve attachment plate 30 is restricted. The thickness of the first tab 36 is slightly smaller than the width of the cutout 50a of the side plate 50. Therefore, the lateral movement of the closing valve attachment plate 30 is restricted to some extent, but there is a slight movement margin. Therefore, the closing valve attachment plate 30 can be slightly rotated about the first pawl 36 as a rotation axis.
The closing valve mounting plate 30 once rotated in a direction away from the side plate 50 is rotated so as to approach the side plate 50. At this time, the abutment body 35 of the closing valve attachment plate 30 is in a state of abutting against one surface of the side plate 50 on the back side of the flange 52. The second claw 37 of the closing valve attachment plate 30 abuts against the other surface on the front surface side of the flange 52 of the side plate 50. That is, the second claw 37 of the closing valve mounting plate 30 and the abutment body 35 sandwich the flange 52. This restricts further rotation of the sealing valve attachment plate 30 toward the heat exchanger 8.
Since the rotation of the closing valve attachment plate 30 in the direction away from the side plate 50 is opposite to the gravity, no external force is generated unless the external force is applied. Here, the distal end portion 39 of the second claw 37 extends in a direction away from the flange 52. Thereby guiding the movement of the second claw 37 when it abuts the other face of the flange 52. Therefore, the second claw 37 smoothly abuts against the other surface of the flange 52.
By the above operation, the movement of the sealing valve attachment plate 30 in the direction other than the direction opposite to the gravity is restricted. Therefore, after the first claws 36 are inserted into the cutouts 50a, the flanges 52 are sandwiched between the second claws 37 and the abutment body 35, and thereby the shutoff valve mounting plate 30 is temporarily fixed to the side plate 50 as shown in fig. 11 and 12.
Here, the plate-side screw holes 35a and the plate-side screw holes 52a are formed such that the plate-side screw holes 35a overlap the plate-side screw holes 52a when the block valve attachment plate 30 is temporarily fixed to the side plate 50. Therefore, the operator can insert and screw the screws into the plate-side screw holes 35a and the plate-side screw holes 52a without pressing the shut valve attachment plate 30 with a hand or the like.
According to embodiment 1, the first claws 36 are inserted into the cutout portions 50a of the flange 52, and the second claws 37 and the abutment body 35 sandwich the flange 52, whereby the closing valve attachment plate 30 is supported by the side plate 50 of the heat exchanger 8. Therefore, the closing valve attachment plate 30 can be stabilized until the closing valve attachment plate 30 is finally fixed.
Conventionally, there is known a technique in which the sealing valve attachment plate 30 is supported by the liquid pipe 60 and the gas pipe 70 until the sealing valve attachment plate 30 is fixed. In this technique, since the closing valve attachment plate 30 is supported by the liquid pipe 60 and the gas pipe 70, stress is applied to the liquid pipe 60 and the gas pipe 70 by vibration of the closing valve attachment plate 30 before the closing valve attachment plate 30 is fixed by the screw. Therefore, the liquid pipe 60 and the gas pipe 70 may be damaged.
In contrast, in embodiment 1, after the first claws 36 are inserted into the cutout portions 50a, the flange 52 is sandwiched between the second claws 37 and the abutment body 35, and the closing valve attachment plate 30 is temporarily fixed to the side plate 50. Therefore, the shutoff valve mounting plate 30 does not need to be supported by the liquid pipe 60 and the gas pipe 70. Therefore, the liquid pipe 60 and the gas pipe 70 are not subjected to stress due to vibration, and damage to the liquid pipe 60 and the gas pipe 70 can be suppressed.
In addition, since the sealing valve attachment plate 30 is supported by the liquid pipe 60 and the gas pipe 70 until the sealing valve attachment plate 30 is fixed to the housing 20, the stability when the sealing valve attachment plate 30 is fixed by screws is insufficient in the related art. Therefore, when the screw is used for fixing, the driver bit may be mistakenly brought into contact with the fin of the heat exchanger 8, the liquid pipe 60, the gas pipe 70, the liquid shut valve 61, the gas shut valve 71, or the like, and may be damaged.
In contrast, in embodiment 1, when the shutoff valve attachment plate 30 is temporarily fixed to the side plate 50, the plate side screw holes 35a overlap with the plate side screw holes 52a. Therefore, the closing valve attachment plate 30 can be stabilized before the closing valve attachment plate 30 is fixed. Therefore, it is possible to suppress damage that may occur when the driver bit erroneously comes into contact with the fin of the heat exchanger 8, the liquid pipe 60, the gas pipe 70, the liquid shut valve 61, the gas shut valve 71, or the like at the time of fixing with the screw. When the block valve attachment plate 30 is temporarily fixed to the side plate 50, the plate-side screw hole 35a and the plate-side screw hole 52a naturally overlap. Therefore, the worker does not have to manually align the positions of the plate-side screw holes 35a with the positions of the plate-side screw holes 52a when assembling the outdoor unit 2. Therefore, workability is improved.
In addition, the first claw 36 has an inclined edge 36a inclined so as to taper from the base end to the leading end. Thereby guiding the insertion of the first claw 36 into the cutout portion 50a. Therefore, the first claw 36 is smoothly inserted into the cutout portion 50a. In addition, the second claw 37 has: a base end portion 38 abutting against the other surface of the flange 52, and a tip end portion 39 connected to the base end portion 38 and extending in a direction away from the flange 52. Thereby guiding the movement of the second jaw 37 when it abuts the other face of the flange 52. Therefore, the second claw 37 smoothly abuts against the other surface of the flange 52. Further, the cutout portion 50a is enlarged toward the upper side of the flange 52. Thereby further guiding the insertion of the first claw 36 into the cutout 50a. Therefore, the first claw 36 is smoothly inserted into the cutout portion 50a.
Description of the reference numerals
An air conditioner; an outdoor unit; an indoor unit; a refrigerant circuit; refrigerant tubing; a compressor; a flow path switching device; a heat exchanger; an outdoor blower; a motor; a propeller fan; 9c. An expansion portion; an indoor heat exchanger; an indoor blower; an electronics unit; a control substrate; a housing; a plenum chamber; a machine chamber; a leg; a bottom panel; a front surface panel; a housing opening; a side back panel; a protective cover; a top panel; a fan housing; a divider plate; an internal component part; closing the valve mounting plate; a plate body; a repair window; a top surface detent; a side stop; an installation portion; 35.. Abutting the body; a plate side screw hole; a first jaw; an angled edge; a second jaw; a basal end portion; a front end portion; a side plate; cutting out the cut-out part; a plate body; a hole; a flange; a flat plate side screw hole; liquid piping; a liquid shut-off valve; gas piping; a gas block valve.
Claims (6)
1. An outdoor unit of an air conditioner, comprising:
a housing that houses a liquid pipe through which a liquid refrigerant flows and a gas pipe through which a gas refrigerant flows, and that has a closing valve mounting plate provided with a liquid closing valve that closes the liquid pipe and a gas closing valve that closes the gas pipe; and
a heat exchanger provided in the casing, for exchanging heat between the refrigerant and air, and having a side plate extending in a vertical direction to which the liquid pipe and the gas pipe are connected at a side surface,
the side plates have:
a plate main body having a hole into which the liquid pipe and the gas pipe are inserted; and
a flange extending from the plate body toward the closing valve attachment plate side and having a cutout formed between the flange and an upper end portion of the plate body,
the closing valve mounting plate has:
an abutting body abutting against one surface of the flange;
a first claw provided at an upper end portion of the abutment body and inserted into the cutout portion; and
and a second claw provided below the first claw, abutting against the other surface of the flange, and sandwiching the flange together with the abutment body.
2. An outdoor unit of an air conditioner according to claim 1,
after the first claw is inserted into the cutout portion, the flange is sandwiched by the second claw and the abutment body, whereby the closing valve mounting plate is temporarily fixed to the side flat plate.
3. An outdoor unit of an air conditioner according to claim 2,
the closing valve mounting plate is provided with plate-side screw holes for inserting screws, the screws are used for mounting the closing valve mounting plate and the side flat plate,
a plate side screw hole into which the screw is inserted is formed in the side plate,
when the closing valve mounting plate is temporarily fixed to the side plate, the plate-side screw holes overlap with the plate-side screw holes.
4. An outdoor unit of an air conditioner according to any one of claims 1 to 3,
the first claw has an inclined edge inclined in such a manner as to taper from a base end to a leading end.
5. An outdoor unit of an air conditioner according to any one of claims 1 to 4,
the second claw has:
a base end portion abutting against the other surface of the flange; and
and a tip portion connected to the base end portion and extending in a direction away from the flange.
6. An outdoor unit of an air conditioner according to any one of claims 1 to 5,
the cutout portion is enlarged toward an upper side of the flange.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2020/033927 WO2022054127A1 (en) | 2020-09-08 | 2020-09-08 | Outdoor unit for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115968433A true CN115968433A (en) | 2023-04-14 |
Family
ID=80631393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080103382.4A Pending CN115968433A (en) | 2020-09-08 | 2020-09-08 | Outdoor unit of air conditioner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7309078B2 (en) |
| CN (1) | CN115968433A (en) |
| WO (1) | WO2022054127A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3966750B2 (en) * | 2002-03-20 | 2007-08-29 | 東芝キヤリア株式会社 | Air conditioner outdoor unit |
| JP3922232B2 (en) * | 2003-08-07 | 2007-05-30 | ダイキン工業株式会社 | Air conditioner outdoor unit |
| JP2006242544A (en) * | 2005-03-07 | 2006-09-14 | Mitsubishi Heavy Ind Ltd | Outdoor unit and air conditioner |
| JP6197988B2 (en) * | 2013-03-28 | 2017-09-20 | 株式会社富士通ゼネラル | Cover structure for refrigerant branch unit of air conditioner |
| JP6238878B2 (en) * | 2014-11-25 | 2017-11-29 | 三菱電機株式会社 | Air conditioner outdoor unit |
| US20170350606A1 (en) * | 2015-02-17 | 2017-12-07 | Mitsubishi Electric Corporation | Outdoor unit |
| JP6677013B2 (en) * | 2016-02-26 | 2020-04-08 | 株式会社富士通ゼネラル | Outdoor unit of air conditioner |
| JP6836114B2 (en) * | 2016-07-07 | 2021-02-24 | 株式会社富士通ゼネラル | Outdoor unit of air conditioner |
-
2020
- 2020-09-08 JP JP2022548267A patent/JP7309078B2/en active Active
- 2020-09-08 CN CN202080103382.4A patent/CN115968433A/en active Pending
- 2020-09-08 WO PCT/JP2020/033927 patent/WO2022054127A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022054127A1 (en) | 2022-03-17 |
| JP7309078B2 (en) | 2023-07-14 |
| JPWO2022054127A1 (en) | 2022-03-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4063296B2 (en) | Shut-off valve support member and outdoor unit of air conditioner having the same | |
| JP5569417B2 (en) | Air conditioner outdoor unit | |
| JP5672028B2 (en) | Air conditioner outdoor unit | |
| JP5972252B2 (en) | Indoor unit and air conditioner | |
| JP2013194959A (en) | Refrigeration apparatus | |
| JP2013200097A (en) | Indoor unit of air conditioner | |
| WO2017061013A1 (en) | Indoor unit and air conditioner | |
| US11326788B2 (en) | Air-conditioning apparatus | |
| CN115968433A (en) | Outdoor unit of air conditioner | |
| JP2006242544A (en) | Outdoor unit and air conditioner | |
| CN113423996B (en) | Indoor unit and air conditioning apparatus | |
| JP5173403B2 (en) | Air conditioner indoor unit | |
| JP2008309430A (en) | Casing for engine driven type air conditioner and engine driven air conditioner | |
| JP2006250376A (en) | Indoor unit for air conditioner | |
| CN113614464A (en) | Substrate holder, refrigerant detection device, and refrigeration cycle device | |
| CN210511940U (en) | Outdoor unit of air conditioner | |
| WO2021106194A1 (en) | Cover, refrigeration cycle unit, and refrigeration cycle device | |
| WO2017042913A1 (en) | Indoor unit and air conditioner | |
| WO2023209807A1 (en) | Air conditioner | |
| JP6811876B2 (en) | Indoor unit and air conditioner | |
| JP6972380B2 (en) | Refrigeration cycle device | |
| WO2021171399A1 (en) | Outdoor unit for air conditioner | |
| JP4876845B2 (en) | Electrical component unit and outdoor unit of air conditioner equipped with the same | |
| JP2024076612A (en) | Rear panel, air conditioner having said rear panel, and installation method of said air conditioner | |
| WO2020170363A1 (en) | Indoor unit and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 40090709 Country of ref document: HK |