EP4600571A1

EP4600571A1 - Outdoor unit for air conditioner

Info

Publication number: EP4600571A1
Application number: EP23874955.0A
Authority: EP
Inventors: Masahiro Hayashi; Yuta TERUI
Original assignee: Fujitsu General Ltd
Current assignee: Fujitsu General Ltd
Priority date: 2022-10-07
Filing date: 2023-10-06
Publication date: 2025-08-13
Also published as: WO2024075830A1; JP7544110B2; JP2024055593A

Abstract

An outdoor equipment (2) of an air conditioner (1) includes a housing (30) in which a heat exchange chamber (RA) and a machine chamber (RB) are partitioned by a partition plate (34), in which at least a first control board (27) and a second control board (28) are accommodated in the machine chamber (RB), an outdoor fan (17) that blows air is accommodated in the heat exchange chamber RA, in a case where a surface of the housing (30) on which an air blow-out port (41) is formed is a front surface, the first control board (27) is disposed along the front surface of the housing (30) constituting the machine chamber (RB), and the second control board (28) is disposed along a right side surface of the housing (30) constituting the machine chamber (RB).

Description

Field

The present invention relates to an outdoor equipment of an air conditioner including a partition plate in a housing.

Background

Conventionally, in an outdoor equipment of an air conditioner, a configuration is known in which the inside of a housing is partitioned into a heat exchange chamber and a machine chamber by a partition plate, a heat exchanger, a fan, and the like are arranged in the heat exchange chamber, and a compressor, an expansion valve, a control board, and the like are arranged in the machine chamber (for example, see Patent Literature 1). In the outdoor equipment of Patent Literature 1, the control board is disposed on the front surface side of the machine chamber in a case where the surface of the housing on which the air blow-out port is formed is the front surface.

Citation List

Patent Literature

Patent Literature 1: Japanese Laid-open Patent Publication No. 2020-73835

Summary

Technical Problem

Some outdoor equipment of an air conditioner have other functions such as heat exchange between water and refrigerant in addition to air and a refrigerant. In this case, an electronic component that controls the device on the water circuit side is mounted on the control board in addition to an electronic component that controls the device on the refrigerant circuit side such as the compressor and the expansion valve. Since such multifunctionalization increases the size of the control board, there is room for improvement in appropriately disposing the control board inside the machine chamber.
The disclosed technology has been made in view of the above, and an object thereof is to provide an outdoor equipment of an air conditioner in which a control board can be appropriately disposed in a machine chamber. Solution to Problem
According to an aspect of an embodiment, an outdoor equipment of the air conditioner, the outdoor equipment includes a housing in which a heat exchange chamber and a machine chamber are partitioned by a partition plate, wherein at least a first control board and a second control board are accommodated in the machine chamber, the first control board is disposed along a first surface of the housing constituting the machine chamber, and the second control board is disposed along a second surface of the housing constituting the machine chamber.

Advantageous Effects of Invention

According to one aspect of the outdoor equipment of the air conditioner disclosed in the present application, the control board can be appropriately disposed in the machine chamber.

Brief Description of Drawings

FIG. 1 is a circuit configuration diagram illustrating an example of a refrigerant circuit and a water circuit of an air conditioner according to the present embodiment.
FIG. 2 is an external perspective view of an outdoor equipment as viewed from a front surface side.
FIG. 3 is an external perspective view of the outdoor equipment as viewed from a back surface side.
FIG. 4 is a perspective view illustrating an internal structure of the outdoor equipment.
FIG. 5 is a partially enlarged perspective view of an electric unit as viewed from a right front surface side of the outdoor equipment.
FIG. 6 is a partially enlarged perspective view of the electric unit as viewed from a right back surface side of the outdoor equipment.
FIG. 7 is a view of a power board of a first control board as viewed from a back surface side of a housing.
FIG. 8 is a view illustrating a power supply line connecting a terminal and each control board and a circuit mounted on each control board.
FIG. 9 is a perspective view of a second control board holding portion.
FIG. 10 is a partially enlarged view of the second control board holding portion when a hooking portion formed on the second control board holding portion is viewed from a front surface side of the second control board holding portion.
FIG. 11 is a view of a state in which the second control board holding portion is removed from a frame portion as viewed from a right side of the outdoor equipment.
FIG. 12 is a view of a state in which the second control board holding portion is hooked on the frame portion as viewed from the right side of the outdoor equipment.
FIG. 13 is a partially enlarged view illustrating a modification of a temporary receiving structure.

Description of Embodiments

Hereinafter, an embodiment of an outdoor equipment of an air conditioner disclosed in the present application will be described in detail with reference to the drawings. Note that the disclosed technology is not limited by the present embodiment. In addition, the embodiments described below may be appropriately modified within a range in which there is no contradiction.

[Embodiments]

FIG. 1 is a circuit configuration diagram illustrating an example of a refrigerant circuit and a water circuit of an air conditioner according to the present embodiment. An air conditioner 1 includes an outdoor equipment 2 and an indoor equipment 3, and the outdoor equipment 2 and the indoor equipment 3 are connected by a water pipe to form a water circuit 4. The air conditioner 1 performs cooling or heating of a room (space) in which the indoor equipment 3 is disposed by circulating cold water or hot water through the water circuit 4 of the outdoor equipment 2 and the indoor equipment 3. Although FIG. 1 illustrates the air conditioner 1 including one indoor equipment 3, the air conditioner 1 may include a plurality of units of indoor equipment 3 connected in parallel to the outdoor equipment 2.
As illustrated in FIG. 1, the outdoor equipment 2 includes a compressor 11, a four-way valve 12, an outdoor heat exchanger 13, an outdoor expansion valve 14, a water-refrigerant heat exchanger 15, an accumulator 16, and an outdoor fan (fan) 17. The compressor 11, the four-way valve 12, the outdoor heat exchanger 13, the outdoor expansion valve 14, the water-refrigerant heat exchanger 15, and the accumulator 16 are connected by a refrigerant pipe 18 to form a refrigerant circuit 10. The refrigerant circuit 10 is completed inside the outdoor equipment 2 to constitute a refrigeration cycle. In the present embodiment, the refrigerant circuit 10 is provided with a refrigerant cooling device 24 between the outdoor heat exchanger 13 and the outdoor expansion valve 14. The refrigerant cooling device 24 includes a part of the refrigerant pipe 18 thermally connected to the control board, and cools the heat generating component mounted on the control board by the refrigerant flowing through the refrigerant pipe 18. In addition, a water pipe 19 is connected to the water-refrigerant heat exchanger 15 separately from the refrigerant pipe 18. The water pipe 19 extends to the outside of the outdoor equipment 2 and is connected to an indoor unit 23 (described later) of the indoor equipment 3 to form the water circuit 4.
The compressor 11 is, for example, a high pressure container type variable capacity compressor capable of changing the operating capacity, and compresses the sucked low pressure gas refrigerant and discharges the high pressure gas refrigerant. The four-way valve 12 is connected to a refrigerant discharge side of the compressor 11, and an accumulator 16 is connected to a refrigerant suction side.
The four-way valve 12 is a valve for switching a refrigerant flow direction in the refrigerant circuit 10, and includes a first port 12A to a fourth port 12D. The first port 12A is connected to a refrigerant discharge side of the compressor 11. The second port 12B is connected to one refrigerant inlet/outlet port 13A of the outdoor heat exchanger 13. The third port 12C is connected to the refrigerant inflow side of the accumulator 16. Then, the fourth port 12D is connected to one refrigerant inlet/outlet port 15A of the water-refrigerant heat exchanger 15.
For example, a fin tube heat exchanger is used as the outdoor heat exchanger 13. The outdoor heat exchanger 13 exchanges heat between the refrigerant and outside air taken into the outdoor equipment 2 by the rotation of the outdoor fan 17. The other refrigerant inlet/outlet 13B of the outdoor heat exchanger 13 is connected to the other refrigerant inlet/outlet 15B of the water-refrigerant heat exchanger 15 via the outdoor expansion valve 14. The outdoor heat exchanger 13 functions as a condenser in a case where the air conditioner 1 performs the cooling operation, and condenses (liquefies) the gas refrigerant. In addition, the outdoor heat exchanger 13 functions as an evaporator in a case where the air conditioner 1 performs the heating operation, and evaporates (vaporizes) the liquid refrigerant.
The outdoor expansion valve 14 is provided between the other refrigerant inlet/outlet 13B of the outdoor heat exchanger 13 and the other refrigerant inlet/outlet 15B of the water-refrigerant heat exchanger 15. The outdoor expansion valve 14 is, for example, an electronic expansion valve, and decompresses (expands) the liquid refrigerant passing through the outdoor expansion valve 14 by adjusting the valve opening.
For example, a plate heat exchanger is used as water-refrigerant heat exchanger 15. The water-refrigerant heat exchanger 15 exchanges heat between the refrigerant circulating in the refrigerant circuit 10 and the water circulating in the water circuit 4. The water-refrigerant heat exchanger 15 functions as an evaporator in a case where the air conditioner 1 performs a cooling operation or a defrosting operation, and evaporates (vaporizes) the liquid refrigerant. In addition, the water-refrigerant heat exchanger 15 functions as a condenser in a case where the air conditioner 1 performs the heating operation, and condenses (liquefies) the gas refrigerant. The water-refrigerant heat exchanger 15 has a water inlet 15C and a water outlet 15D, and the water pipe 19 is connected to the water inlet 15C and the water outlet 15D to constitute a part of the water circuit 4. In addition, for example, a circulation pump 21 for circulating water in the water circuit 4 is provided on the water inlet 15C side, and an air vent valve 22 for venting air that has entered the water circuit 4 is provided on the water outlet 15D side.
The refrigerant inflow side of the accumulator 16 is connected to the third port 12C of the four-way valve 12, and the refrigerant outflow side is connected to the refrigerant inflow side of the compressor 11. The accumulator 16 is formed as a hollow pressure vessel, separates the refrigerant flowing inside into a gas refrigerant and a liquid refrigerant, and sucks only the gas refrigerant into the compressor 11.
The outdoor fan 17 is disposed near the outdoor heat exchanger 13 and sends air toward the outdoor heat exchanger 13. Specifically, the outdoor fan 17 takes outside air into the outdoor equipment 2 through a suction port 44 and a suction opening 46, which will be described later, of the outdoor equipment 2, and releases the outside air, which has undergone heat exchange with the refrigerant in the outdoor heat exchanger 13, to the outside of the outdoor equipment 2 through a blow-out port 41, which will be described later.
On the other hand, the indoor equipment 3 includes the indoor unit 23. For example, a floor heating device or a radiator is used as the indoor unit 23. One refrigerant inlet/outlet 23A of the indoor unit 23 is connected to the water outlet 15D of the water-refrigerant heat exchanger 15. In addition, the other refrigerant inlet/outlet 23B of the indoor unit 23 is connected to the water inlet 15C of the water-refrigerant heat exchanger 15 via the circulation pump 21. As a result, the indoor unit 23 is connected to the water-refrigerant heat exchanger 15 by the water pipe 19 to constitute the water circuit 4, and the water circulating in the water circuit 4 radiates heat or absorbs heat in the indoor unit 23, thereby heating or cooling the air-conditioning space in which the indoor equipment 3 is installed.

Next, a flow of refrigerant and a flow of water during operation of the air conditioner 1 will be described. A broken line arrow in FIG. 1 indicates the flow of the refrigerant during the heating operation, and a solid line arrow indicates the flow of the refrigerant during the cooling operation.
In a case where the air conditioner 1 performs the heating operation, the four-way valve 12 is switched so that the first port 12A and the fourth port 12D communicate with each other and the second port 12B and the third port 12C communicate with each other, and is set to a communication state indicated by a broken line in FIG. 1. As a result, the refrigerant circuit 10 becomes a heating cycle in which the water-refrigerant heat exchanger 15 functions as a condenser and outdoor heat exchanger 13 functions as an evaporator.
When the compressor 11 is driven in the state in which refrigerant circuit 10 is in the above state, the refrigerant discharged from the compressor 11 flows into the four-way valve 12, and flows into the water-refrigerant heat exchanger 15 from the four-way valve 12. The high-temperature gas refrigerant flowing into the water-refrigerant heat exchanger 15 exchanges heat with water circulating in the water circuit 4 of the water-refrigerant heat exchanger 15 by movement of the circulation pump 21 to be condensed. On the other hand, the water circulating in the water circuit 4 is heated by the refrigerant in the water-refrigerant heat exchanger 15 to become hot water. The hot water flows into the indoor unit 23 of the indoor equipment 3 through the water pipe 19 of the water circuit 4. Then, the indoor unit 23 radiates heat from the hot water to heat the room in which the indoor equipment 3 is installed.
The liquid refrigerant condensed by heat exchange with water in the water-refrigerant heat exchanger 15 passes through the outdoor expansion valve 14 to be decompressed, and then flows into the outdoor heat exchanger 13 via the refrigerant cooling device 24. The refrigerant flowing into the outdoor heat exchanger 13 exchanges heat with the outside air flowing into the outdoor equipment 2 by the rotation of the outdoor fan 17, and evaporates. The gas refrigerant evaporated in the outdoor heat exchanger 13 passes through the four-way valve 12 and the accumulator 16 in this order, is sucked into the compressor 11, and is compressed again.
In addition, in a case where the air conditioner 1 performs the cooling operation or the defrosting operation, the four-way valve 12 is switched so that the first port 12A and the second port 12B communicate with each other and the third port 12C and the fourth port 12D communicate with each other, and is set to the communication state indicated by the solid line in FIG. 1. As a result, the refrigerant circuit 10 becomes a cooling cycle in which the water-refrigerant heat exchanger 15 functions as an evaporator and the outdoor heat exchanger 13 functions as a condenser.
When the compressor 11 is driven in the state in which refrigerant circuit 10 is in the above state, the refrigerant discharged from the compressor 11 flows into the four-way valve 12, and flows into the outdoor heat exchanger 13 from the four-way valve 12. The high-temperature gas refrigerant flowing into the outdoor heat exchanger 13 exchanges heat with the outdoor air taken into the outdoor equipment 2 by the rotation of the outdoor fan 17 to be condensed. In a case where the defrosting operation is performed, the frost generated in the outdoor heat exchanger 13 is melted by the heat of the refrigerant flowing into the outdoor heat exchanger 13.
The liquid refrigerant condensed by the outdoor heat exchanger 13 passes through the refrigerant cooling device 24, is decompressed by the outdoor expansion valve 14, and then flows into the water-refrigerant heat exchanger 15. The liquid refrigerant flowing into the water-refrigerant heat exchanger 15 exchanges heat with water circulating in the water circuit 4 of the water-refrigerant heat exchanger 15 by operation of the circulation pump 21 to be evaporated. On the other hand, the water circulating in the water circuit 4 is cooled by the refrigerant in the water-refrigerant heat exchanger 15 to become cold water. The cold water flows into the indoor unit 23 of the indoor equipment 3 through the water pipe 19 of the water circuit 4. Then, the indoor unit 23 absorbs heat of the indoor air by the cold water to cool the room in which the indoor equipment 3 is installed. In a case where the defrosting operation is performed, the circulation pump 21 is stopped to stop water circulation in the water circuit 4 in order to suppress a decrease in indoor temperature.
The gas refrigerant evaporated in the water-refrigerant heat exchanger 15 passes through the four-way valve 12 and the accumulator 16 in this order, is sucked into the compressor 11, and is compressed again.

Next, an appearance and an internal structure of the outdoor equipment 2 will be described. FIG. 2 is an external perspective view of an outdoor equipment as viewed from a front surface side, and FIG. 3 is an external perspective view of the outdoor equipment as viewed from a back surface side. FIG. 4 is a perspective view illustrating an internal structure of the outdoor equipment. Note that directions such as front and back, up and down, and left and right described below indicate directions in a case where the outdoor equipment 2 is viewed from the front side with a direction in which air is blown out from the blow-out port 41 described later as a front surface side in a state where the outdoor equipment 2 is installed.
As illustrated in FIGS. 2 and 3, the outdoor equipment 2 includes a housing 30 having a rectangular parallelepiped box shape in which a dimension in the left-right direction (width direction) is larger than a dimension in the front-back direction (depth direction). The housing 30 includes a bottom plate 31 disposed to face the installation surface, a top surface panel 32 disposed above the bottom plate 31 in the height direction, and a side surface panel portion 33 that connects the bottom plate 31 and the top surface panel 32 and partitions the inside and the outside of the housing 30.
As illustrated in FIG. 4, the inside of the housing 30 is partitioned into a heat exchange chamber RA and a machine chamber RB by a partition plate 34 fixed to the bottom plate 31. In the heat exchange chamber RA, the outdoor heat exchanger 13 is accommodated on the back surface side of the heat exchange chamber RA, and the outdoor fan 17 is disposed on the front surface side. The outdoor heat exchanger 13 is bent in an L shape when viewed from the upper surface (top surface panel 32 side), and is supported by the bottom plate 31 from the back surface side to the left side surface side of the heat exchange chamber RA.
The outdoor fan 17 is attached to a pair of support members 35 and 35 erected on the bottom plate 31. The outdoor fan 17 is a so-called axial fan, and sucks outside air into the heat exchange chamber RA from the outside of the outdoor equipment 2, that is, from the suction port 44 (described later) formed on the back surface side of the outdoor heat exchanger 13 and the suction opening 46 (described later) formed on the left side surface side by rotational drive of the outdoor fan 17 by a fan motor (not illustrated). Then, the air after heat exchange in the outdoor heat exchanger 13 is blown out forward from the blow-out port 41 (described later) formed on the front surface side of the heat exchange chamber RA. As described above, the outdoor equipment 2 is a front surface blow-out type outdoor equipment that blows out air after heat exchange from the front surface side.
The compressor 11, the accumulator 16, the four-way valve 12 (FIG. 1), the outdoor expansion valve 14 (FIG. 1), and the like, which are part of devices (refrigerant circuit components) constituting refrigerant circuit 10, are disposed in a lower space of machine chamber RB. The compressor 11 and the accumulator 16 are fixed to the bottom plate 31. In addition, in the lower space of the machine chamber RB, the water-refrigerant heat exchanger 15, the air vent valve 22, the circulation pump (pump) 21, and the like, which are part of the devices (water circuit components) constituting the water circuit 4, are disposed. In the present exemplary embodiment, the water-refrigerant heat exchanger 15 is disposed near a corner portion between a back surface side and a right side surface side in a lower space of the machine chamber RB (housing 30). In addition, in the upper space of the machine chamber RB, an electric unit 25 having electric components for controlling movements of the outdoor equipment 2 and the indoor equipment 3 is disposed. The electric unit 25 includes at least a first control board 27, a second control board 28, and a terminal 26, and is fixed to the partition plate 34.
Next, the side surface panel portion 33 will be described. The side surface panel portion 33 is formed by combining a plurality of panel members. In the present embodiment, as illustrated in FIGS. 2 and 3, the side surface panel portion 33 includes a front surface panel 36, a back surface panel 37, a right side surface panel 38, a left side surface panel 39, and a service panel 40. The front surface panel 36, the back surface panel 37, the right side surface panel 38, and the left side surface panel 39 are each formed in an L shape including two adjacent surfaces of the housing 30 and a corner portion sandwiched between the two surfaces when the housing 30 is viewed from above.
Specifically, the front surface panel 36 integrally includes a first front surface portion 36A forming a part of the front surface of the housing 30 and a first left side surface portion 36B forming a part of the left side surface of the housing 30. The back surface panel 37 integrally includes a first back surface portion 37A forming a part of the back surface of the housing 30 and a first right side surface portion 37B forming a part of the right side surface of the housing 30. The right side surface panel 38 integrally includes a second right side surface portion 38A forming a part of the right side surface of the housing 30 and a second front surface portion 38B forming a part of the front surface of the housing 30. The left side surface panel 39 integrally includes a second left side surface portion 39A forming a part of the left side surface of the housing 30 and a second back surface portion 39B forming a part of the back surface of the housing 30.
The first front surface portion 36A of the front surface panel 36 is disposed on the front surface side of the heat exchange chamber RA, and the second front surface portion 38B of the right side surface panel 38 is disposed on the front surface side of the machine chamber RB. The first front surface portion 36A and the second front surface portion 38B are arranged side by side on the left and right to form the front surface (first surface) of the housing 30. The blow-out port 41 through which air subjected to heat exchange in the heat exchange chamber RA is blown out is formed in the first front surface portion 36A. The blow-out port 41 has, for example, a circular bell mouth 41A, and a part of the outdoor fan 17 is disposed in the bell mouth 41A. A mesh fan guard 42 that covers the blow-out port 41 is provided in front of the front surface panel 36. The fan guard 42 is formed in an L shape when the fan guard 42 is viewed from above, and is disposed along the first front surface portion 36A to the first left side surface portion 36B of the front surface panel 36. The fan guard 42 is fixed to the front surface panel 36 at a predetermined interval between an upper end portion (end portion in the upper side) 42A of the fan guard 42 and the top surface panel 32. In addition, a water shielding plate 43 extending in the left-right (width) direction is provided above the blow-out port 41 in the first front surface portion 36A.
The first back surface portion 37A of the back surface panel 37 and the second back surface portion 39B of the left side surface panel 39 are disposed side by side on the left and right at intervals to form a back surface of the housing 30. The outdoor heat exchanger 13 is disposed to be exposed between the first back surface portion 37A and the second back surface portion 39B, and this exposed region serves as the suction port 44. A net fin guard 45 is provided behind the suction port 44. In addition, the first back surface portion 37A is disposed on the back surface side of the machine chamber RB, and faces the water-refrigerant heat exchanger 15 with a gap. An outside air intake port 48 for taking air (outside air) into the machine chamber RB is formed in a lower portion of the first back surface portion 37A, and a rain guard cover 49 for covering the outside air intake port 48 is provided outside the first back surface portion 37A. The rain guard cover 49 has an opening portion 49A having an opened lower side, and the opening portion 49A communicates with the outside air intake port 48.
The second right side surface portion 38A of the right side surface panel 38 and the first right side surface portion 37B of the back surface panel 37 are arranged side by side in the front-back direction at intervals to form a right side surface connecting the front surface and the back surface of the housing 30. The service panel 40 is detachably disposed between the second right side surface portion 38A and the first right side surface portion 37B. By removing the service panel 40, the inside of the machine chamber RB can be accessed, and maintenance of the electric unit 25 and various circuit components can be easily executed.
The second left side surface portion 39A of the left side surface panel 39 and the first left side surface portion 36B of the front surface panel 36 are arranged side by side in the front-back direction to form a left side surface connecting the front surface and the back surface of the housing 30. The second left side surface portion 39A faces a part of the outdoor heat exchanger 13, and a plurality of suction openings 46 is formed in the second left side surface portion 39A.
In addition, the side surface panel portion 33 of the housing 30 is provided with a plurality of handle portions 51, 52, and 53 for transporting the outdoor equipment 2. Each of the handle portions 51, 52, and 53 is disposed near the corner portion of the housing 30.
Next, the electric unit 25 will be described. FIG. 5 is a partially enlarged perspective view of an electric unit as viewed from a right front surface side of the outdoor equipment. FIG. 6 is a partially enlarged perspective view of the electric unit as viewed from a right back surface side of the outdoor equipment. As described above, the electric unit 25 includes the first control board 27, the second control board 28, and the terminal 26, and is disposed in the upper space of the machine chamber RB. In the present embodiment, the first control board 27 is a main control board that controls movements of the outdoor fan 17 and the refrigerant circuit components, and the second control board is a water circuit control board that controls the water circuit components. In addition, the terminal 26 is a device to which a power supply line (not illustrated) for supplying electric power from the outside to the outdoor equipment 2 is connected. As illustrated in FIGS. 5 and 6, the electric unit 25 includes a first control board holding portion 61 that holds the first control board 27, a second control board holding portion (fixing plate) 62 that holds the second control board 28 and the terminal 26, and a frame portion 70 that is formed in a frame body shape and to which the first control board holding portion 61 and the second control board holding portion 62 are fixed. The frame portion 70 is formed by connecting a first support member 71 to a seventh support member 77 formed linearly in a frame body shape.
Specifically, one end of the first support member 71 is fixed to the upper portion on the front side of the partition plate 34, and one end of the second support member 72 is fixed to the partition plate 34 below the first support member 71. At least a part of the partition plate 34 is provided to extend in the front-back direction from the front surface toward the back surface of the housing 30. In addition, the first support member 71 and the second support member 72 extend in the machine chamber RB in the left-right direction. The third support member 73 extends in the vertical direction and has a rectangular frame body shape by connecting the other ends of the first support member 71 and the second support member 72.
One end of the fourth support member 74 is connected to the other end of the first support member 71 and the third support member 73. Similarly, the fifth support member 75 one end is connected to the other end of the second support member 72 and the third support member 73. The fourth support member 74 and the fifth support member 75 extend in the machine chamber RB in the front-back direction. The sixth support member 76 extends in the vertical direction and has a rectangular frame body shape by connecting the other ends of the fourth support member 74 and the fifth support member 75. One end of the seventh support member 77 is connected to the other end of the fourth support member 74 and the sixth support member 76, and the other end of the seventh support member 77 is connected to an upper portion of a panel (also referred to as an end plate) 78 attached to an end portion 13C of the outdoor heat exchanger 13 on the machine chamber RB side. As described above, the frame portion 70 formed in the frame body shape is fixed to the partition plate 34 and the panel 78 of the outdoor heat exchanger 13 to be disposed in the upper space of the machine chamber RB.
The first control board holding portion 61 is a plate-like member having an outer edge formed in a substantially rectangular shape, and the first control board holding portion 61 holding the first control board 27 is bridged and fixed to the first support member 71 and the second support member 72 of the frame portion 70. In addition, the second control board holding portion 62 has an outer edge formed in a substantially rectangular shape, and the second control board holding portion 62 holding the second control board 28 is bridged and fixed to the fourth support member 74 and the fifth support member 75 of the frame portion 70.
According to this configuration, in the first control board 27, the one end 271 of the first control board 27 is located on the partition plate 34 side. In addition, the second control board 28 is located on the other end 272 side of the first control board 27. In other words, the first control board 27 is disposed along the front surface (first surface) of the housing 30 constituting the machine chamber RB, that is, the second front surface portion 38B of the right side surface panel 38, and the second control board 28 is disposed along the side surface (second surface) of the housing 30 constituting the machine chamber RB, that is, the second right side surface portion 38A of the right side surface panel 38 and the service panel 40.
As described above, the first control board 27 is disposed along the second front surface portion 38B of the housing 30, and the second control board 28 is disposed along the second right side surface portion 38A and the service panel 40 of the housing 30, so that a part of the refrigerant circuit components (for example, the four-way valve 12) in the machine chamber RB is disposed in a space formed between the second control board 28 and the partition plate 34. Therefore, the first control board 27 and the second control board 28 can be appropriately disposed in the machine chamber RB while interference with a part of the refrigerant circuit components is suppressed.
The first control board 27 has electronic components (including heat generating components) on both surfaces thereof in order to reduce the size of the board. In the present embodiment, the first control board 27 is divided into two and disposed on both surfaces of the first control board holding portion 61. That is, the first control board 27 includes a power board 27A arranged on a back surface 61A (one surface) side of the first control board holding portion 61 and a main board 27B arranged on a front surface 61B (the other surface) side of the first control board holding portion 61. The main board 27B is disposed on the front surface (the second front surface portion 38B of the right side surface panel 38) side of the housing 30, and the power board 27A is disposed on the back surface side of the main board 27B. A heat generation amount of the electronic component mounted on the power board 27A is larger than a heat generation amount of the electronic component mounted on the main board 27B. Specifically, a plurality of electronic components (also referred to as high-voltage components) constituting a part of the control circuit and having a high-voltage system for performing power conversion, for example, an IC of a converter circuit for driving the compressor 11, a power device such as an IC of an inverter circuit, a large-capacity electrolytic capacitor for smoothing, a high-power connector, and the like are mainly mounted on the power board 27A. In addition, electronic components constituting the rest of the control circuit, such as a microcomputer, electronic components for operation, such as a low power connector for inserting and removing a switch and a plug constituting a setting circuit, and low-voltage electronic components (also referred to as low-voltage components) such as LEDs constituting a display circuit are mainly mounted on the main board 27B.
In addition, the second control board 28 controls the movement of the above-described water circuit component. Unlike the first control board 27, in the second control board 28, high-voltage electronic components such as power devices and smoothing large capacity electrolytic capacitors are not mounted on the second control board 28. Therefore, similarly to the main board 27B of the first control board 27, on the second control board 28, a low-voltage electronic component as a low-heat generating component having a smaller heat generation amount than the high-voltage electronic component mounted on the power board 27A is mainly mounted.
Next, a configuration for cooling the first control board 27 will be described. FIG. 7 is a view of a power board of a first control board as viewed from a back surface side of a housing. As described above, the first control board 27 is divided into two in order to reduce the size of the board, and includes the power board 27A and the main board 27B disposed on both surfaces of the first control board holding portion 61, and electronic components having heat generation are mounted on the power board 27A and the main board 27B, respectively. Therefore, it is important to appropriately cool each of the power board 27A and the main board 27B.
In the present embodiment, the outdoor equipment 2 is configured to cool each of the power board 27A and the main board 27B by allowing outside air to flow into the machine chamber RB. Specifically, as illustrated in FIG. 5, the first back surface portion 37A is formed with the outside air intake port 48 for taking air (outside air) into the machine chamber RB. The outside air intake port 48 is provided below the electric unit 25 (first control board 27) and at a position facing the water-refrigerant heat exchanger 15. In addition, the partition plate 34 is provided with an outside air discharging portion 80 that discharges outside air taken into the machine chamber RB to the heat exchange chamber RA.
As illustrated in FIGS. 5 and 6, the outside air discharging portion 80 is disposed on the one end 271 side of the first control board 27 (one end 27A1 side of the power board 27A and one end 27B1 side of the main board 27B), and when the one end 271 side is viewed from the other end 272 side of the first control board 27, the outside air discharging portion 80 is disposed so as to straddle both surfaces of the first control board 27, that is, the power board 27A and the main board 27B. According to this configuration, the outside air taken into the lower side of the machine chamber RB through outside air intake port 48 is guided by the surface of the water-refrigerant heat exchanger 15, rises in the machine chamber RB, and is discharged to the heat exchange chamber RA through the outside air discharging portion 80. At this time, since the outside air discharging portion 80 is disposed so as to straddle the power board 27A and the main board 27B, the outside air flows along the surfaces of the power board 27A and the main board 27B, thereby cooling the power board 27A and the main board 27B.
In addition, a heat generation amount of the electronic component mounted on the power board 27A is larger than a heat generation amount of the electronic component mounted on the main board 27B. Therefore, in the present embodiment, the amount of outside air flowing on the power board 27A side (one surface side) and discharged from the outside air discharging portion 80 is larger than the amount of outside air flowing on the main board 27B side (the other surface side) and discharged from the outside air discharging portion 80. With this configuration, a large amount of outside air can flow to the side of the power board 27A having a large heat generation amount, and the power board 27A can be efficiently cooled.
In addition, in the present embodiment, the outdoor equipment 2 is configured to cool the power board 27A using the refrigerant flowing through the refrigerant circuit 10. As illustrated in FIG. 7, the refrigerant cooling device 24 thermally connected to the power board 27A is disposed on another end 27A2 side of the power board 27A. In the refrigerant cooling device 24, for example, a part of a refrigerant pipe bent in a U shape is fixed to the first control board holding portion 61 via a heat sink 190. According to this configuration, the heat generating component mounted on the power board 27A can be efficiently cooled by cold of the refrigerant flowing through the refrigerant pipe.
The second control board holding portion 62 holds the second control board 28 and the terminal 26. As illustrated in FIG. 8, in the terminal 26, a power supply line 85 for supplying power (single-phase AC power) from the outside is connected to the first control board 27 and the second control board 28, and the power supply line 85 includes a first power supply line 85A wired from the terminal 26 to the main board 27B (first control board 27) and a second power supply line 85B wired from the terminal 26 to the second control board 28. The single-phase AC power supplied to the main board 27B by the first power supply line 85A is supplied to the power board 27A and converted into DC power. In the present embodiment, the second power supply line 85B wired to the second control board 28 is provided separately from the first power supply line 85A wired to the main board 27B. Therefore, for example, there is an advantage that the second power supply line 85B does not interfere when the second control board holding portion 62 is detached from the frame portion 70 together with the second control board 28 and the terminal 26 and is hooked on a temporary receiving structure (described later).
In addition, in the present embodiment, a first filter circuit 88 is mounted on the main board 27B, a first switching circuit 86 is mounted on the power board 27A, and a second filter circuit 87 and a second switching circuit 89 are mounted on the second control board 28. The first switching circuit 86 and the second switching circuit 89 include, for example, a rectifier circuit 84 and an inverter circuit including power semiconductor elements, convert a DC voltage into a three-phase AC voltage, and supply the converted three-phase AC voltage to a motor, the circulation pump 21, and the like of the compressor 11 serving as a load. The first filter circuit 88 mounted on the main board 27B is connected between the terminal 26 and the first switching circuit 86 mounted on the power board 27A to reduce switching noise leaking from the first switching circuit 86 to the outside. Similarly, the second filter circuit 87 is connected between the terminal 26 and the second switching circuit 89 to reduce switching noise leaking from the second switching circuit 89 to the outside. The first filter circuit 88 and the second filter circuit 87 can include, for example, a common mode noise filter that reduces common mode noise. In the present embodiment, by mounting the filter circuit on each of the main board 27B and the second control board 28, power can be supplied to each board separately from the terminal 26.
Next, the second control board holding portion 62 will be described. FIG. 9 is a perspective view of a second control board holding portion, and FIG. 10 is a partially enlarged view of the second control board holding portion when a hooking portion formed on the second control board holding portion is viewed from a front surface side of the second control board holding portion. FIG. 11 is a view of a state in which the second control board holding portion is removed from a frame portion as viewed from a right side of the outdoor equipment. FIG. 12 is a view of a state in which the second control board holding portion is hooked on the frame portion as viewed from the right side of the outdoor equipment. As described above, the second control board holding portion 62 is disposed along the side surface (second surface) of the housing 30 constituting the machine chamber RB, that is, the second right side surface portion 38A of the right side surface panel 38 and the service panel 40 in a state where the second control board 28 is attached. In addition, in the machine chamber RB, a part of the refrigerant circuit component is disposed between the partition plate 34 and the second control board holding portion 62. Some of the refrigerant circuit components are, for example, the four-way valve 12, the outdoor expansion valve 14, and the refrigerant cooling device 24. These devices constituting the refrigerant circuit need periodic maintenance. In order to perform maintenance of a device disposed between the partition plate 34 and the second control board holding portion 62 among the refrigerant circuit components, it is desired to make not only the service panel 40 but also the second control board holding portion 62 movable. In the present embodiment, the second control board holding portion 62 is movably disposed such that at least a part of the refrigerant circuit components is exposed in a state where the second control board 28 is attached.
Specifically, as illustrated in FIG. 9, the second control board holding portion 62 includes, for example, a main body portion 90 formed in a tray shape, an upper fixing portion (fixing portion) 91 extending upward from an upper edge of the main body portion 90, and a lower fixing portion (fixing portion) 92 extending downward from a lower edge of the main body portion 90. The upper fixing portion 91 and the lower fixing portion 92 are plate-like portions fixed to the frame portion 70, and the upper fixing portion 91 is fixed to the fourth support member 74, and the lower fixing portion 92 is fixed to the fifth support member 75. For example, a through hole 91a is provided in the upper fixing portion 91, a through hole 92a is provided in the lower fixing portion 92, and a fixing screw (not illustrated) passes through each through hole. The main body portion 90 is located on the back side of the upper fixing portion (fixing portion) 91 and the lower fixing portion 92, and includes a board holding surface 90A that holds the second control board 28 and a terminal holding surface 90B that holds the terminal 26. For example, in a state where the second control board holding portion 62 is attached to the frame portion 70, the board holding surface 90A is provided so as to protrude to the partition plate 34 side from the upper fixing portion 91 and the lower fixing portion 92, and the terminal holding surface 90B is formed as a downward inclined surface that connects the board holding surface 90A and the lower fixing portion 92.
Therefore, the second control board holding portion 62 can be attached to and detached from the frame portion 70 in the machine chamber RB by attaching and detaching fixing screws passed through the through holes 91a and 92a in a state where the second control board 28 and the terminal 26 are attached. By removing the second control board holding portion 62 from the frame portion 70, an operator can perform an operation such as maintenance on at least a part of the refrigerant circuit components.
In addition, the second control board holding portion 62 is provided with an opening portion 94 on the board holding surface 90A of the main body portion 90. As illustrated in FIG. 6, the opening portion 94 is disposed above the terminal 26, and the first power supply line 85A is wired from the terminal 26 to the main board 27B through the opening portion 94. That is, the opening portion 94 is disposed between the terminal 26 and the main board 27B. According to this configuration, since the first power supply line 85A can be wired to the main board 27B (first control board 27) while being separated from the second control board 28, the influence of noise generated from the second control board 28 can be reduced.
Here, the second control board holding portion 62 is removed from the frame portion 70 in a state where the second control board 28 and the terminal 26 are attached, but the power supply line 85 is connected to the terminal 26. As a result, the movement of the second control board holding portion 62 is limited to the range where the power supply line 85 can reach. Therefore, the second control board holding portion 62 has a structure that can be temporarily fixed to the machine chamber in a state where the second control board holding portion 62 is moved to such an extent that at least a part of the refrigerant circuit components is exposed. Specifically, the second control board holding portion 62 includes a hooking portion (temporary fixing portion) 93 for temporarily fixing the second control board holding portion 62 to the frame portion 70 in the machine chamber RB. As illustrated in FIGS. 9 and 10, for example, the hooking portion 93 is provided integrally with the upper fixing portion 91 on the upper fixing portion 91 of the second control board holding portion 62. Specifically, in a case where the second control board holding portion 62 is attached to the frame portion 70, the hooking portion 93 is provided at a front end (one end in the width direction) 91b of the upper fixing portion 91, and is formed in a claw shape in which a lower end 93a protrudes downward after protruding in a direction perpendicular to the surface of the upper fixing portion 91. The hooking portion 93 is formed to protrude forward from the front end 91b of the upper fixing portion 91. Therefore, a gap 95 is provided between the front end 91b of the upper fixing portion 91 and the lower end 93a protruding in a claw shape below the hooking portion 93. As an example in which the refrigerant circuit components move to an extent that at least a part of the refrigerant circuit components is exposed, the case where the second control board holding portion 62 is removed from the frame portion 70 has been described, but other configurations may be adopted. For example, the second control board holding portion 62 may move so as to rotate with respect to the frame portion 70. In addition, although the hooking portion 93 has been described as an example of the temporary fixing portion, any other shape may be used as long as the hooking portion 93 can temporarily fix the second control board holding portion 62 to the frame portion 70 in the machine chamber RB in a state where the second control board holding portion 62 can move such that at least a part of the refrigerant circuit component is exposed.
In addition, the main body portion 90 of the second control board holding portion 62 has a side edge portion 90C formed at least on the side where the hooking portion 93 is provided. A lower portion 90D of the side edge portion 90C abuts on a wide portion 73c in the lower portion of the third support member 73 in a state where the second control board holding portion 62 is temporarily fixed to the frame portion 70. In the present embodiment, the lower portion 90D of the side edge portion 90C functions as an abutting portion that supports the lower portion of the second control board holding portion 62.
On the other hand, as illustrated in FIG. 11, the frame portion 70 has a cutout portion 73b (temporary receiving structure) that temporarily receives the hooking portion 93 formed in the second control board holding portion 62. The cutout portion 73b is provided in the third support member 73 described above that forms a part of the frame portion 70. The third support member 73 includes a support piece 73a extending backward in the machine chamber RB on the upper portion of the third support member 73, and the cutout portion 73b obtained by cutting out the upper edge in a narrow groove shape is formed at the upper edge of the support piece 73a. As illustrated in FIG. 10, the support piece 73a of the third support member 73 is inserted into the gap 95 between the front end 91b of the upper fixing portion 91 and the lower end 93a of the hooking portion 93, and the cutout portion 73b and a base portion 93b of the hooking portion 93 of the second control board holding portion 62 abut on each other. As a result, the second control board holding portion 62 is hooked on the frame portion 70 to be temporarily fixed. As a structure in which the second control board holding portion 62 is hooked on the frame portion 70, the second control board holding portion 62 can be temporarily fixed to the frame portion 70 regardless of the shape as long as there are the lower end 93a of the hooking portion 93 protruding downward, the gap 95, and the base portion 93b of the hooking portion 93 abutting on the cutout portion 73b.
In addition, the wide portion 73c extending backward in the machine chamber RB is formed in the lower portion of the third support member 73. The wide portion 73c abuts on the abutting portion of the second control board holding portion 62 and functions as an abutted portion in a state where the second control board holding portion 62 is temporarily fixed to the frame portion 70. In the present embodiment, as illustrated in FIG. 12, the second control board holding portion 62 can hook the hooking portion 93 to the cutout portion 73b of the third support member 73 and bring the lower portion 90D of the side edge portion 90C into contact with the wide portion 73c of the third support member 73. As a result, the third support member 73 can be sandwiched and supported between the hooking portion 93 and the lower portion 90D of the side edge portion 90C. Therefore, the second control board holding portion 62 can be stably and temporarily fixed to the frame portion 70. Furthermore, the second control board holding portion 62 is moved such that at least a part (for example, the four-way valve 12) of the refrigerant circuit components is exposed in a state where the second control board 28 is attached, and the second control board holding portion 62 can be temporarily fixed to the frame portion 70 at the moved position. Therefore, the operator can perform maintenance on a part of the refrigerant circuit component (for example, the four-way valve 12, the refrigerant cooling device 24, and the like) while taking his/her hand off the second control board holding portion 62.
As described above, an outdoor equipment 2 of an air conditioner 1 according to the present embodiment includes: a housing 30 in which a heat exchange chamber RA and a machine chamber RB are partitioned by a partition plate 34, in which at least a first control board 27 and a second control board 28 are accommodated in the machine chamber RB, an outdoor fan 17 that blows air is accommodated in the heat exchange chamber RA, in a case where a surface of the housing 30 on which an air blow-out port 41 is formed is a front surface, the first control board 27 is disposed along the front surface of the housing 30 constituting the machine chamber RB, and the second control board 28 is disposed along a right side surface of the housing 30 constituting the machine chamber RB. According to this configuration, the first control board 27 and the second control board 28 can be appropriately disposed inside the machine chamber RB.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, refrigerant circuit components constituting a refrigerant circuit are accommodated in the machine chamber RB, and the second control board 28 is movably arranged such that at least a part of the refrigerant circuit components is exposed. According to this configuration, the refrigerant circuit components in the machine chamber RB can be accessed by moving the second control board 28, and maintenance of these refrigerant circuit components can be performed.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, a part of the refrigerant circuit components is disposed between the second control board 28 and the partition plate 34. According to this configuration, the refrigerant circuit components in the machine chamber RB can be accessed by moving the second control board 28 disposed along the right side surface of the housing 30 constituting the machine chamber RB, and maintenance of these refrigerant circuit components can be performed.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, a refrigerant circuit component includes a refrigerant cooling device 24 that cools a heat generating component with a refrigerant, and the refrigerant cooling device 24 is thermally connected to the first control board 27. According to this configuration, the refrigerant cooling device 24 in the machine chamber RB can be accessed by moving the second control board 28, and maintenance of the refrigerant cooling device 24 can be performed.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, the first control board 27 includes a main board 27B on which a low-voltage component is mounted and a power board 27A on which a high-voltage component is mounted, the main board 27B is attached to a front surface of the first control board holding portion 61 and disposed on the front surface side of the housing 30, and the power board 27A is attached to a rear surface (back surface) of the first control board holding portion 61 and disposed on the back surface side of the main board 27B. According to this configuration, the main board 27B and the power board 27A can be disposed on both surfaces of the first control board holding portion 61, and an increase in size of the first control board 27 can be suppressed.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, the first control board 27 includes a main board 27B on which a low-voltage component is mounted and a power board 27A on which a high-voltage component is mounted, the machine chamber RB includes a refrigerant cooling device 24 as one of refrigerant circuit components, and the refrigerant cooling device 24 is thermally connected to the power board 27A. According to this configuration, since the refrigerant cooling device 24 is thermally connected to the power board 27A on which the high-voltage component having a large heat generation amount is mounted, the high-voltage component can be effectively cooled. In addition, by moving the second control board 28, the refrigerant cooling device 24 and the power board 27A in the machine chamber RB can be accessed.
The outdoor equipment 2 of the air conditioner 1 according to the present embodiment includes a second control board holding portion 62 to which the second control board 28 is attached, and the second control board holding portion 62 is movably disposed such that at least a part of the refrigerant circuit component is exposed in a state where the second control board 28 is attached. According to this configuration, the refrigerant cooling device 24 in the machine chamber RB can be accessed by moving the second control board holding portion 62, and maintenance of the refrigerant cooling device 24 can be performed.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, the second control board holding portion 62 is detachably disposed on the frame portion 70 provided in the machine chamber RB. According to this configuration, the second control board holding portion 62 can be easily moved by removing the second control board holding portion 62 from the frame portion 70.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, the second control board holding portion 62 includes an upper fixing portion 91 and a lower fixing portion 92 for fixing to the frame portion 70 provided in the machine chamber RB, and a hooking portion 93 for temporarily fixing the second control board holding portion 62 to the frame portion 70 in a state where the second control board holding portion 62 is moved with respect to the frame portion 70 such that at least a part of the refrigerant circuit component is exposed. According to this configuration, the second control board holding portion 62 can be fixed to the frame portion 70 using the upper fixing portion 91 and the lower fixing portion 92, and can be temporarily fixed to the frame portion 70 using the hooking portion 93.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, the frame portion 70 disposed in the machine chamber RB is provided with a plurality of support members to which the upper fixing portion 91 and the lower fixing portion 92 of the second control board holding portion 62 are fixed, and the third support member 73 that is a part of these support members is provided with a cutout portion 73b that temporarily receives the hooking portion 93 of the second control board holding portion 62. According to this configuration, by hooking the hooking portion 93 on the cutout portion 73b, the second control board holding portion 62 can be easily and temporarily fixed to the third support member 73 (frame portion 70).
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, the second control board holding portion 62 has the hooking portion 93 in the upper fixing portion 91, and the cutout portion 73b is formed in the upper portion of the third support member 73. According to this configuration, the second control board holding portion 62 can be temporarily fixed without greatly changing the position where the second control board holding portion 62 is fixed and the height position.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, the second control board holding portion 62 includes the side edge portion 90C of the main body portion 90, and the lower portion 90D of the side edge portion 90C functions as an abutting portion that supports the lower portion of the second control board holding portion 62 in a state where the second control board holding portion 62 is temporarily fixed. In addition, the wide portion 73c extending backward in the machine chamber RB is formed in a lower portion of the third support member 73, and the wide portion 73c abuts on the lower portion 90D of the side edge portion 90C of the second control board holding portion 62 and functions as an abutted portion in a state where the second control board holding portion 62 is temporarily fixed to the frame portion 70. Therefore, the second control board holding portion 62 can sandwich and support the third support member 73 between the hooking portion 93 and the lower portion 90D of the side edge portion 90C by hooking the hooking portion 93 on the cutout portion 73b of the third support member 73 and bringing the lower portion 90D of the side edge portion 90C into contact with the wide portion 73c of the third support member 73. Therefore, the second control board holding portion 62 can be stably and temporarily fixed to the frame portion 70.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, since a terminal 26 to which a power supply line 85 for supplying power from the outside is connected is disposed in the second control board holding portion 62, the second control board holding portion 62 can be attached and detached and moved in a state of being wired to the terminal 26.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, since the power supply line 85 includes a first power supply line 85A wired from the terminal 26 to the main board 27B of the first control board 27 and a second power supply line 85B wired from the terminal 26 to the second control board 28, for example, there is an advantage that the second power supply line 85B does not interfere when the second control board holding portion 62 is detached from the frame portion 70 together with the second control board 28 and the terminal 26 and is hooked on a temporary receiving structure (described later).
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, a first filter circuit 88 that is connected between a first switching circuit 86 mounted on the power board 27A and the terminal 26 and reduces the switching noise of the first switching circuit 86 is mounted on the main board 27B of the first control board 27, and a second filter circuit 87 that is connected between the terminal 26 and the second switching circuit 89 mounted on the second control board 28 and reduces the switching noise of the second switching circuit 89 is mounted on the second control board 28. According to this configuration, by mounting the filter circuit on each of the main board 27B and the second control board 28, power can be supplied to each board separately from the terminal 26.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, the first power supply line 85A is disposed so as to be separated from the second control board 28. Therefore, the first power supply line 85A can be wired to connect the terminal 26 and the main board 27B of the first control board 27 while being away from the second control board 28. Accordingly, it is possible to prevent noise emitted from the second control board 28 from being superimposed on the first power supply line 85A.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, the second control board holding portion 62 is provided with an opening portion 94 in a board holding surface 90A of a main body portion 90, and the first power supply line 85A passes through the opening portion 94. According to this configuration, since the first power supply line 85A is wired from the terminal 26 to the main board 27B through the opening portion 94, the first power supply line 85A can be wired to the main board 27B (first control board 27) while being separated from the second control board 28, so that the radiation noise generated from the second control board 28 can be prevented from being superimposed.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, the opening portion 94 is disposed between the terminal 26 and the main board 27B of the first control board 27. Therefore, while the first power supply line 85A and the second power supply line 85B are wired in the same direction from the terminal 26, the first power supply line 85A can be separated from the second control board 28. That is, the first power supply line 85A is wired from the terminal 26 to the main board 27B through the opening portion 94, and the second power supply line 85B is wired to the second control board 28 disposed above the terminal 26. As a result, the first power supply line 85A connected to the terminal 26 is wired to the main board 27B (first control board 27) through the opening portion 94 without facing a pattern (not illustrated) on the second control board 28. Therefore, it is possible to prevent the radiation noise generated from the second control board 28 from being superimposed.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, the opening portion 94 is disposed above the terminal 26. Therefore, in a case where an external power line that supplies power from the outside is connected to the terminal 26 from below the terminal 26, the first power supply line 85A and the second power supply line 85B connected to the terminal 26 can be disposed above the terminal 26. Then, by connecting the first power supply line 85A to the main board 27B (first control board 27) through the opening portion 94, the first power supply line 85 A can be wired while being separated from the second control board 28. In addition, the second power supply line 85B can be connected to the second control board 28 disposed above the terminal 26.
In the outdoor equipment 2 of the air conditioner 1 according to the present embodiment, the machine chamber RB accommodates the compressor 11 that compresses the refrigerant, the outdoor expansion valve 14 that controls the amount of the refrigerant flowing through the refrigerant circuit 10, the four-way valve 12 that switches the refrigerant circuit 10 to the cooling circuit or the heating circuit, and the circulation pump 21 that circulates water in the water circuit 4, electronic components that control at least the compressor 11, the outdoor expansion valve 14, and the four-way valve 12 are mounted on the first control board 27, and electronic components that control at least the circulation pump are mounted on the second control board 28. According to this configuration, devices constituting the refrigerant circuit 10 and the water circuit 4 accommodated in machine chamber RB can be controlled by different control boards. Therefore, it is possible to suppress an increase in size of the control board by multifunctionalization, and it is possible to appropriately arrange the control board inside the machine chamber.
Although one embodiment of the outdoor equipment of the air conditioner in the present disclosure has been described above, the present disclosure is not limited to this. In the present embodiment, the configuration in which the cutout portion 73b to which the hooking portion 93 of the second control board holding portion 62 is temporarily fixed is provided in the third support member 73 has been described, but the cutout portion 73b may be provided in any support member forming the frame portion 70. In addition, in the present embodiment, the cutout portion 73b to which the hooking portion 93 of the second control board holding portion 62 is temporarily fixed may be provided anywhere in the machine chamber RB. Note that, although the cutout portion 73b has been described as an example of the temporary receiving structure, any other shape may be used as long as the hooking portion 93 (temporary fixing portion) is temporarily received. For example, as illustrated in FIG. 13, an upper edge 73d of the support piece 73a of the third support member 73 constituting the frame portion 70 may have a shape inclined downward from the distal end toward the proximal end. According to this configuration, the inclined upper edge 73d of the support piece 73a can easily guide the hooking portion 93 to the cutout portion 73b. Therefore, the hooking portion 93 can be temporarily fixed to the upper edge 73d of the support piece 73a, and the upper edge 73d functions as a temporary receiving structure.

Reference Signs List

1: AIR CONDITIONER
2: OUTDOOR EQUIPMENT
4: WATER CIRCUIT
10: REFRIGERANT CIRCUIT
11: COMPRESSOR
12: FOUR-WAY VALVE
13: OUTDOOR HEAT EXCHANGER
17: OUTDOOR FAN (FAN)
18: REFRIGERANT PIPE
24: REFRIGERANT COOLING DEVICE
25: ELECTRIC UNIT
26: TERMINAL
27: FIRST CONTROL BOARD
27A: POWER BOARD
27B: MAIN BOARD
28: SECOND CONTROL BOARD
30: HOUSING
34: PARTITION PLATE
61: FIRST CONTROL BOARD HOLDING PORTION
62: SECOND CONTROL BOARD HOLDING PORTION
70: FRAME PORTION
73: THIRD SUPPORT MEMBER (SUPPORT MEMBER)
73a: SUPPORT PIECE
73b: CUTOUT PORTION (TEMPORARY RECEIVING STRUCTURE)
73c: WIDE PORTION (ABUTTED PORTION)
85: POWER SUPPLY LINE
85A: FIRST POWER SUPPLY LINE
85B: SECOND POWER SUPPLY LINE
86: FIRST SWITCHING CIRCUIT
87: SECOND FILTER CIRCUIT
88: FIRST FILTER CIRCUIT
89: SECOND SWITCHING CIRCUIT
90: MAIN BODY PORTION
90A: BOARD HOLDING SURFACE
90B: TERMINAL HOLDING SURFACE
90C: SIDE EDGE PORTION
90D: LOWER PORTION (ABUTTING PORTION)
91: UPPER FIXING PORTION (FIXING PORTION)
92: LOWER FIXING PORTION (FIXING PORTION)
93: HOOKING PORTION (TEMPORARY FIXING PORTION)
RA: HEAT EXCHANGE CHAMBER
RB: MACHINE CHAMBER

Claims

An outdoor equipment of an air conditioner, the outdoor equipment comprising:
a housing in which a heat exchange chamber and a machine chamber are partitioned by a partition plate, wherein

at least a first control board and a second control board are accommodated in the machine chamber,

the first control board is disposed along a first surface of the housing constituting the machine chamber, and

the second control board is disposed along a second surface of the housing constituting the machine chamber.
The outdoor equipment of the air conditioner according to claim 1, wherein
a fan that blows air is accommodated in the heat exchange chamber, and

in a case where a surface of the housing on which an air blow-out port is formed is a front surface,

the first surface is a front surface of the housing constituting the machine chamber, and

the second surface is a side surface of the housing constituting the machine chamber.
The outdoor equipment of the air conditioner according to claim 1 or 2, wherein
devices constituting a refrigerant circuit are accommodated in the machine chamber, and

the second control board is movably disposed such that at least a part of the devices is exposed.
The outdoor equipment of the air conditioner according to claim 3, wherein the part of the devices is disposed between the second control board and the partition plate.
The outdoor equipment of the air conditioner according to claim 3, wherein
the devices constituting the refrigerant circuit include a refrigerant cooling device that cools a heat generating component with a refrigerant, and

the refrigerant cooling device is thermally connected to the first control board.
The outdoor equipment of the air conditioner according to claim 2, wherein
the first control board includes a main board on which a low-voltage component is mounted and a power board on which a high-voltage component is mounted, and

the main board is disposed on a front surface side of the housing, and the power board is disposed on a back surface side of the main board.
The outdoor equipment of the air conditioner according to claim 1 or 2, wherein
the first control board includes a main board on which a low-voltage component is mounted and a power board on which a high-voltage component is mounted,

the machine chamber includes a refrigerant cooling device as one of devices constituting a refrigerant circuit, and

the refrigerant cooling device is thermally connected to the power board.
The outdoor equipment of the air conditioner according to claim 3, wherein
a fixing plate to which the second control board is attached, and

the fixing plate is movably disposed in a state where the second control board is attached such that at least a part of the devices is exposed.
The outdoor equipment of the air conditioner according to claim 8, wherein the fixing plate is detachably disposed in the machine chamber.
The outdoor equipment of the air conditioner according to claim 8, wherein the fixing plate includes a fixing portion to be fixed to the machine chamber, and a temporary fixing portion to be temporarily fixed to the machine chamber in a state where the fixing plate is moved such that at least a part of the devices is exposed.
The outdoor equipment of the air conditioner according to claim 10, wherein the machine chamber is provided with a support member to which the fixing plate is fixed, and the support member has a temporary receiving structure that temporarily receives the temporary fixing portion.
The outdoor equipment of the air conditioner according to claim 11, wherein the temporary receiving structure is a cutout portion formed in the support member.
The outdoor equipment of the air conditioner according to claim 12, wherein
the fixing plate includes a hooking portion in an upper portion of the fixing plate as the temporary fixing portion, and

the cutout portion is formed in an upper portion of the support member.
The outdoor equipment of the air conditioner according to claim 12, wherein
a lower portion of the fixing plate is provided with an abutting portion that supports a lower portion of the fixing plate in a state where the fixing plate is temporarily fixed, and

an abutted portion that abuts on the abutting portion is provided below the support member.
The outdoor equipment of the air conditioner according to claim 8, wherein a terminal to which a power supply line that supplies power from outside is connected is disposed on the fixing plate.
The outdoor equipment of the air conditioner according to claim 15, wherein the power supply line includes a first power supply line wired from the terminal to the first control board and a second power supply line wired from the terminal to the second control board.
The outdoor equipment of the air conditioner according to claim 16, wherein the first power supply line is disposed to be separated from the second control board.
The outdoor equipment of the air conditioner according to claim 17, wherein the fixing plate is provided with an opening portion, and the first power supply line passes through the opening portion.
The outdoor equipment of the air conditioner according to claim 18, wherein the opening portion is disposed between the terminal and the first control board.
The outdoor equipment of the air conditioner according to claim 19, wherein the opening portion is disposed above the terminal.
The outdoor equipment of the air conditioner according to claim 16, wherein a first filter circuit that is connected between the terminal and a first switching circuit mounted on the first control board and reduces switching noise of the first switching circuit is mounted on the first control board, and a second filter circuit that is connected between the terminal and a second switching circuit mounted on the second control board and reduces switching noise of the second switching circuit is mounted on the second control board.
The outdoor equipment of the air conditioner according to claim 1 or 2, wherein
the machine chamber accommodates a compressor that compresses a refrigerant, an expansion valve that controls an amount of the refrigerant flowing through a refrigerant circuit, a four-way valve that switches the refrigerant circuit to a cooling circuit or a heating circuit, and a pump that circulates water in a water circuit, and

an electronic component that controls at least the compressor, the expansion valve, and the four-way valve is mounted on the first control board, and an electronic component that controls at least the pump is mounted on the second control board.