Outdoor unit of heat pump cycle device

Abstract

To suppress an increase in a size of an outdoor unit.SOLUTION: An outdoor unit for a heat pump cycle device includes a casing having a top plate, a bottom plate and a side plate provided between the top plate and the bottom plate. Inside of the casing is partitioned by a partition plate into a machine chamber that accommodates a water refrigerant heat exchanger for exchanging heat between water and a refrigerant, a compressor and an accumulator and a heat exchange chamber that accommodates an air refrigerant heat exchanger for exchanging heat between the refrigerant and air and an air blower. Viewed from the top plate toward the bottom plate, when the machine chamber is divided into a first section and a second section in this order from the partition plate side, the compressor and the accumulator are disposed in the first section and the water refrigerant heat exchanger is disposed in the second section.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to an outdoor unit of a heat pump cycle device including a machine chamber in a housing, the machine chamber housing a water-refrigerant heat exchanger. [Background technology]

[0002] The heat pump cycle device includes a refrigerant circuit in which a compressor, a utilization side heat exchanger (water-refrigerant heat exchanger), an expansion valve, a heat source side heat exchanger (outdoor heat exchanger), and an accumulator are connected in sequence by piping. In the water-refrigerant heat exchanger, heat is exchanged between the water and the refrigerant, and the water whose temperature has been adjusted by the water-refrigerant heat exchanger is supplied to the outside of the outdoor unit.

[0003] For example, Patent Document 1 discloses an outdoor unit in which a water-refrigerant heat exchanger and a compressor are integrally disposed within the housing of the outdoor unit. Patent Document 2 discloses an outdoor unit in which a water-refrigerant heat exchanger is disposed below a blower that takes in outside air into the outdoor unit. In both of these outdoor units, the water-refrigerant heat exchanger is disposed within the housing of the outdoor unit. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2012-237504 A [Patent Document 2] International Publication No. 2016 / 157305 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, the outdoor unit becomes larger in size compared to when the water-refrigerant heat exchanger is disposed outside the housing.

[0006] An object of the present invention is to provide an outdoor unit for a heat pump cycle device in which an increase in size of the outdoor unit is suppressed even when a water-refrigerant heat exchanger is disposed inside a housing of the outdoor unit. [Means for solving the problem]

[0007] In order to achieve the above object, an outdoor unit of a heat pump cycle apparatus according to one embodiment of the present invention includes a housing having a top plate, a bottom plate, and a side plate provided between the top plate and the bottom plate. The inside of the housing is divided by a partition into a machine chamber that houses a water-refrigerant heat exchanger where the refrigerant and water exchange heat, a compressor, and an accumulator, and a heat exchange chamber that houses an air-refrigerant heat exchanger where the refrigerant and air exchange heat, and a blower. When the machine room is divided into a first section and a second section in the order from the partition plate side as viewed from the top plate toward the bottom plate, The compressor and the accumulator are disposed in the first section, The water-refrigerant heat exchanger is disposed in the second section.

[0008] With such an outdoor unit, even if the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, an increase in size of the outdoor unit is suppressed.

[0009] In the outdoor unit of the heat pump cycle apparatus, the accumulator and the compressor may be arranged side by side along the partition plate.

[0010] With such an outdoor unit, even if the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, an increase in the size of the outdoor unit can be further prevented.

[0011] In the outdoor unit of the heat pump cycle apparatus, the compressor may be fixed to the bottom plate by three fixing parts, and two of the three fixing parts may be disposed along the partition plate.

[0012] With such an outdoor unit, even if the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, an increase in the size of the outdoor unit can be further prevented.

[0013] In the outdoor unit of the heat pump cycle apparatus, a portion of the partition plate corresponding to the fixing portion disposed along the partition plate may protrude toward the heat exchange chamber.

[0014] With such an outdoor unit, even if the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, an increase in the size of the outdoor unit can be further prevented.

[0015] In the outdoor unit of the heat pump cycle device, the second section may further include a water pump for circulating water through the water-refrigerant heat exchanger, and the water-refrigerant heat exchanger and the water pump may be arranged along the same direction as the accumulator and the compressor.

[0016] With such an outdoor unit, even if the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, an increase in the size of the outdoor unit can be further prevented.

[0017] In the outdoor unit of the heat pump cycle apparatus, the partition plate may be provided with a recess that is recessed toward the machine chamber above the accumulator.

[0018] With such an outdoor unit, even if the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, an increase in the size of the outdoor unit can be further prevented.

[0019] In the outdoor unit of the heat pump cycle apparatus, the partition plate may be provided on the bottom plate side with an opening through which at least one of the fixing parts can be seen from the heat exchange chamber toward the machine chamber.

[0020] With such an outdoor unit, even if the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, an increase in the size of the outdoor unit can be further prevented.

[0021] In the outdoor unit of the heat pump cycle device, a control unit for the outdoor unit may be provided above the first compartment, and a terminal block to which power is supplied from outside the outdoor unit may be provided above the second compartment.

[0022] With such an outdoor unit, even if the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, an increase in the size of the outdoor unit can be further prevented.

[0023] In the outdoor unit of the heat pump cycle apparatus, the control unit may have a first control board that controls the compressor and a second control board that controls the water pump.

[0024] With such an outdoor unit, even if the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, an increase in the size of the outdoor unit can be further prevented.

[0025] In the outdoor unit of the heat pump cycle apparatus, the first control board may be disposed above the second control board.

[0026] With such an outdoor unit, even if the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, an increase in the size of the outdoor unit can be further prevented.

[0027] In the outdoor unit of the heat pump cycle device, the first control board may protrude from the first section into the heat exchange chamber, and a heat dissipation section may be disposed on the first control board protruding into the heat exchange chamber.

[0028] With such an outdoor unit, even if the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, an increase in the size of the outdoor unit can be further prevented.

[0029] In the outdoor unit of the heat pump cycle apparatus, the blower may be closer to the top plate than to the bottom plate.

[0030] With such an outdoor unit, even if the water-refrigerant heat exchanger is disposed inside the housing of the outdoor unit, an increase in the size of the outdoor unit can be further prevented. Effect of the Invention

[0031] As described above, according to the present invention, there is provided an outdoor unit of a heat pump cycle device in which an increase in size of the outdoor unit is suppressed even if a water-refrigerant heat exchanger is disposed inside a housing of the outdoor unit. [Brief description of the drawings]

[0032] [Figure 1] 1 is a schematic configuration diagram of a heat pump cycle device of the present embodiment. [Diagram 2] FIG. 2 is a schematic perspective view showing the appearance of an outdoor unit of the heat pump cycle device. [Diagram 3] FIG. 2 is a schematic perspective view showing the appearance of an outdoor unit of the heat pump cycle device. [Figure 4] 2 is a schematic exploded perspective view of a partition plate disposed inside the housing and each panel forming the housing of the outdoor unit. FIG. [Diagram 5] FIG. 2 is a schematic perspective view of an outdoor unit of the heat pump cycle device. [Figure 6] FIG. 2 is a schematic top view of the outdoor unit of the heat pump cycle device. [Figure 7] FIG. 2 is a schematic top view showing a machine chamber of the outdoor unit. [Figure 8] FIG. 2 is a schematic top view showing a machine chamber of the outdoor unit. [Figure 9] FIG. 2 is a schematic perspective view showing the positional relationship between a partition plate and a compressor. [Figure 10] FIG. 2 is a schematic perspective view showing the positional relationship between a partition plate and a compressor. [Figure 11] FIG. 2 is a schematic perspective view showing a machine room of the outdoor unit. [Figure 12] FIG. 2 is a schematic perspective view showing a machine room of the outdoor unit. [Figure 13] 2 is a schematic perspective view showing a control unit and a terminal block arranged in a housing. FIG. [Figure 14] 4 is a schematic front view showing the positional relationship between a blower and a first control board in a heat exchange chamber. FIG. [Figure 15] 1 is a schematic top view showing a state in which a partition plate having a recess formed therein is placed in a housing. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In each drawing, XYZ axis coordinates may be introduced. In addition, the same reference numerals may be given to the same components or components having the same functions, and after the components are described, the description may be omitted as appropriate. In addition, the numerical values ​​shown below are examples and are not limited to these examples.

[0034] <Overview of heat pump cycle equipment> In this embodiment, a heat pump cycle device is exemplified as an air conditioner. Fig. 1 is a schematic configuration diagram of the heat pump cycle device of this embodiment. Fig. 1 shows a heat pump type hot water heating device as an air conditioner as an example. As shown in Fig. 1, the heat pump cycle device 1 includes an outdoor unit 10 and an indoor unit 90.

[0035] The outdoor unit 10 of the heat pump cycle device 1 includes a compressor 110, a four-way valve 120, a water-refrigerant heat exchanger 130, a water pump (circulation pump) 130, an expansion valve 150, an outdoor heat exchanger 160, an accumulator 170, an outdoor air temperature sensor 180, a blower 190, and a control unit 300. In the outdoor unit 10, the compressor 110, the four-way valve 120, the water-refrigerant heat exchanger 130, the expansion valve 150, the outdoor heat exchanger (air-refrigerant heat exchanger) 160, and the accumulator 170 are connected in order by refrigerant piping 19 to form a refrigerant circuit 1c in the heat pump cycle device 1. The blower 190 includes a propeller fan and a motor that drives the propeller fan.

[0036] The indoor unit 90 of the heat pump cycle apparatus 1 includes an indoor unit 900. In the indoor unit 90, the indoor unit 900, the water-refrigerant heat exchanger 130, and the water pump 140 are connected in sequence by water piping 95, thereby forming a hot water circuit 1h in the heat pump cycle apparatus 1.

[0037] <Refrigerant circuit configuration> Each of the devices constituting the refrigerant circuit 1c will now be described in more detail.

[0038] The compressor 110 is driven by a motor (not shown) whose rotation speed is controlled by an inverter. The compressor 110 is a variable capacity compressor whose operating capacity can be varied. The compressor 110 compresses the sucked low pressure gas refrigerant and discharges high pressure gas refrigerant. The four-way valve 120 is a flow path switching valve for switching the refrigerant circulation direction in the refrigerant circuit 1c. The water-refrigerant heat exchanger 130 is, for example, a plate type heat exchanger. The water-refrigerant heat exchanger 130 functions as a user side heat exchanger, and exchanges heat between the refrigerant flowing through the refrigerant pipe 19 and flowing into the water-refrigerant heat exchanger 130 and the water flowing through the water pipe 95 and flowing into the water-refrigerant heat exchanger 130.

[0039] The expansion valve 150 is an electronic expansion valve whose valve opening is controlled by pulse-controlling a stepping motor. The expansion valve 150 reduces the pressure (expands) the liquid refrigerant passing through the expansion valve 150. The outdoor heat exchanger 160 is, for example, a fin-tube type heat exchanger. The outdoor heat exchanger 160 functions as a heat source side heat exchanger, and exchanges heat between the refrigerant that flows through the refrigerant pipes 19 and into the outdoor heat exchanger 160 and the outside air (outdoor air) taken in by the rotation of the blower 190. The accumulator 170 separates the refrigerant that flows in from the four-way valve 120 into a gas refrigerant and a liquid refrigerant, and only the gas refrigerant is sucked into the compressor 110.

[0040] The blower 190 is disposed inside the housing 101, near the outdoor heat exchanger 160 disposed inside the housing 101. The blower 190 takes in outside air from an intake port (described later) of the outdoor unit 10 into the inside of the outdoor unit 10, and discharges the outside air that has exchanged heat with the refrigerant in the outdoor heat exchanger 160 to the outside of the outdoor unit 10 from an exhaust port (described later).

[0041] An outdoor air temperature sensor 180 is provided near the outdoor heat exchanger 160, facing the outside of the housing 101. The outdoor air temperature sensor 180 detects the temperature of the outdoor air taken into the outdoor unit 10 by the rotation of the blower 190.

[0042] <Hot water circuit configuration> In the outdoor unit 10, the water piping 95 is connected to the water-refrigerant heat exchanger 130 in addition to the refrigerant piping 19. The indoor unit 900 and the water pump 140 are connected to the water piping 95 in this order. The water pump 140 is driven by a motor with a fixed rotation speed or a motor with a variable rotation speed. As a result, water circulates in the hot water circuit 1h in the direction of the solid arrow. For example, water circulates through the water piping 95 in the order of the water pump 140, the indoor unit 900, the water-refrigerant heat exchanger 130, and the water pump 140 again. The indoor unit 900 is a terminal for heating the room, such as a floor heating device or a radiator. That is, the water circulating in the hot water circuit 1h dissipates heat in the indoor unit 900, thereby heating the air-conditioned space in which the indoor unit 90 is installed.

[0043] <Control unit> The control unit 300 includes a CPU for performing calculations and transmitting information, various programs related to the operation control of the heat pump cycle device 1, requests related to operation set by the user in the indoor unit 900 (such as a set temperature), a memory unit for storing the set temperature set in the indoor unit 900 and values ​​detected by various sensors provided in the refrigerant circuit 1c or the hot water circuit 1h, a sensor input unit for taking in the detected values ​​of various sensors provided in the refrigerant circuit 1c or the hot water circuit 1h, and a receiving unit for receiving a signal transmitted from a remote control (not shown) for operating the indoor unit 90. These CPU, memory unit, sensor input unit, receiving unit, and the like are mounted on, for example, a control board (circuit board). The control unit 300 controls the compressor 110, the four-way valve 120, the water pump 140, the expansion valve 150, and the like based on the values ​​detected by the various sensors and various requests related to operation.

[0044] The interior of the outdoor unit 10 is divided into a heat exchange chamber 10H and a machine chamber 10M by a partition plate 20 (FIG. 3). In the outdoor unit 10, the outdoor heat exchanger 160 and the blower 190 are disposed in the heat exchange chamber 10H of the outdoor unit 10. The compressor 110, the four-way valve 120, the water-refrigerant heat exchanger 130, the water pump 140, the expansion valve 150, and the accumulator 170 are disposed in the machine chamber 10M of the outdoor unit 10 (not shown in FIG. 3).

[0045] The outdoor air temperature sensor 180 is disposed near the outdoor heat exchanger 160 on the opposite side to the blower 190. For example, the outdoor air temperature sensor 180 is disposed at the rear of the outdoor heat exchanger 160, at the inlet 103 through which the blower 190 blows outdoor air into the outdoor unit 10. The control unit 300 may be disposed in the heat exchange chamber 10H of the outdoor unit 10, or in the machine chamber 10M. The control unit 300 may also be disposed straddling the machine chamber 10M and the heat exchange chamber 10H. FIG. 1 shows an example in which the control unit 300 is disposed straddling the machine chamber 10M and the heat exchange chamber 10H.

[0046] <Operation of the refrigerant circuit and hot water circuit> The operation of the heat pump cycle device 1 will be described with reference to FIG.

[0047] <Heating operation> When the heat pump cycle device 1 performs a heating operation, the four-way valve 120 is operated to set the refrigerant circuit 1c to a heating cycle. When the compressor 110 is driven in this state, the refrigerant flows through the refrigerant circuit 1c in the direction of the solid arrow. The refrigerant discharged from the compressor 110 flows through the refrigerant pipe 19, passes through the four-way valve 120, and flows into the water-refrigerant heat exchanger 130.

[0048] The refrigerant that has flowed into the water-refrigerant heat exchanger 130 circulates through the hot water circuit 1h and is condensed by exchanging heat with water in the water-refrigerant heat exchanger 130. The refrigerant that has flowed out from the water-refrigerant heat exchanger 130 into the refrigerant pipe 19 is reduced in pressure when passing through the expansion valve 150 and flows into the outdoor heat exchanger 160.

[0049] The refrigerant that has flowed into the outdoor heat exchanger 160 exchanges heat with the outside air and evaporates. The refrigerant that has flowed out from the outdoor heat exchanger 160 to the refrigerant pipe 19 is drawn into the compressor 110 via the four-way valve 120 and the accumulator 170, and is compressed again.

[0050] Meanwhile, in the hot water circuit 1h, the water pump 140 is driven to cause water to flow in the hot water circuit 1h in the direction of the solid arrow. The water that flows through the water piping 95 and flows into the water-refrigerant heat exchanger 130 exchanges heat with the refrigerant, whereby the water is heated by the refrigerant and becomes hot water. This hot water flows into the indoor unit 900. The hot water flows into the indoor unit 900, thereby heating the room in which the indoor unit 900 is installed.

[0051] <Defrosting and cooling operation> When the heat pump cycle apparatus 1 is performing a heating operation, frost may form on the outdoor heat exchanger 160 functioning as an evaporator. In this case, the outdoor unit 10 can perform a defrosting operation of the outdoor heat exchanger 160.

[0052] For example, when the heat pump cycle apparatus 1 performs a defrosting operation, the four-way valve 120 is operated to switch the flow direction of the refrigerant in the refrigerant circuit 1c so that the outdoor heat exchanger 160 functions as a condenser. That is, the refrigerant circuit 1c operates in a cooling cycle. When the compressor 110 is driven in this state, the refrigerant flows through the refrigerant circuit 1c in the direction of the dashed arrow. The refrigerant discharged from the compressor 110 flows through the refrigerant pipe 19, passes through the four-way valve 120, and flows into the outdoor heat exchanger 160. At this time, the blower 190 is stopped.

[0053] The refrigerant that flows into the outdoor heat exchanger 160 melts the frost that has formed in the outdoor heat exchanger 160 by the heat of the refrigerant. The refrigerant that flows out from the outdoor heat exchanger 160 to the refrigerant pipe 19 passes through the expansion valve 150, which is fully open, and flows into the water-refrigerant heat exchanger 130, where it circulates through the hot water circuit 1h and evaporates by exchanging heat with the water that has flowed into the water-refrigerant heat exchanger 130. The refrigerant that flows out from the water-refrigerant heat exchanger 130 to the refrigerant pipe 19 is sucked into the compressor 110 via the four-way valve 120 and the accumulator 170, and is compressed again.

[0054] In addition, the outdoor unit 10 can be applied not only to heating operation but also to cooling operation. When the outdoor unit 10 is applied to a heat pump type hot and cold water air conditioner, the above-mentioned cooling cycle is applied. In this case, the cold refrigerant that has released heat in the outdoor heat exchanger 160 flows into the water-refrigerant heat exchanger 130 and exchanges heat with the water in the hot water circuit 1h flowing through the water-refrigerant heat exchanger 130 to turn the water in the hot water circuit 1h into cold water. As a result, cold water flows into the indoor unit 900, and the cold water circulating in the hot water circuit 1h absorbs heat in the indoor unit 900, thereby cooling the air-conditioned space in which the indoor unit 90 is installed.

[0055] <Outdoor unit> Fig. 2 and Fig. 3 are schematic perspective views showing the appearance of the outdoor unit of the heat pump cycle device. Fig. 2 shows the outdoor unit as viewed obliquely from the front, and Fig. 3 shows the outdoor unit as viewed obliquely from the rear. Note that Fig. 3 does not show a top plate 101u that forms part of the housing of the outdoor unit. Fig. 4 is a schematic perspective view in which a partition plate disposed inside the housing and each panel that forms the housing of the outdoor unit are disassembled.

[0056] 2 and 3, the Z-axis direction is the up-down direction of the outdoor unit 10, the X-axis direction is the left-right direction of the outdoor unit 10, and the Y-axis direction is the front-rear direction (depth direction) of the outdoor unit 10. In this embodiment, the side of the top plate 101u of the housing 101 is referred to as the top side or upper side, the side of the bottom plate 101d of the housing 101 is referred to as the bottom side or lower side, the side of the front panel 101f of the housing 101 is referred to as the front side or front, and the side of the rear panel 101b of the housing 101 is referred to as the rear side or rear. When viewing the housing 101 from the front, a surface on the right side of the housing 101 that is connected to the front and rear sides is referred to as the right side of the housing 101, and a surface on the left side of the housing 101 that is connected to the front and rear sides is referred to as the left side of the housing 101.

[0057] The housing 101 has, for example, a rectangular parallelepiped shape with a left-right length longer than a front-rear length. The housing 101 is formed, for example, from sheet metal, and has a top plate 101u, a bottom plate 101d facing the top plate 101u in the Z-axis direction, and side plates provided between the top plate 101u and the bottom plate 101d. The side plates include a front panel 101f (first side plate), a right side panel 101r (second side plate), a left side panel 101l (third side plate), a rear panel 101b (fourth side plate), and a service panel 101s (fifth side plate).

[0058] In the housing 101, the front panel 101f is bent in an L-shape when the housing 101 is viewed from above, and has a front portion 101fa and a left side portion 101fb. The front panel 101f forms a left corner of the front side of the housing 101. The front portion 101fa of the front panel 101f is aligned with the blower 190 in the Y-axis direction, and forms a part of the front side of the housing 101. The left side portion 101fb of the front panel 101f is continuous with the front portion 101fa, and forms a part of the left side of the housing 101. The length of the front portion 101fa in the X-axis direction is longer than the length of the left side portion 101fb in the Y-axis direction.

[0059] In the housing 101, the right side panel 101r is bent in an L-shape when the housing 101 is viewed from above, and has a front portion 101ra and a right side portion 101rb. The right side panel 101r forms a right corner of the front side of the housing 101. The front portion 101ra of the right side panel 101r is aligned with the front panel 101f in the X-axis direction, and forms a part of the front side of the housing 101. The right side portion 101rb is continuous with the front portion 101ra, and forms a part of the right side of the housing 101. The length of the front portion 101ra in the X-axis direction is longer than the length of the right side portion 101rb in the Y-axis direction.

[0060] In the housing 101, the left side panel 101l is bent in an L-shape when the housing 101 is viewed from above, and has a left side portion 101la and a rear portion 101lb. The left side panel 101l forms a left corner of the rear of the housing 101. The left side portion 101la of the left side panel 101l is aligned with the left side portion 101fb of the front panel 101f in the Y-axis direction. The left side portion 101la forms a part of the left side of the housing 101. The rear portion 101lb of the left side panel 101l is connected to the left side portion 101la and forms a part of the rear of the housing 101. The length of the left side portion 101la in the Y-axis direction is longer than the length of the rear portion 101lb in the X-axis direction.

[0061] In the housing 101, the rear panel 101b is bent in an L-shape when the housing 101 is viewed from above, and has a rear portion 101ba and a right side portion 101bb. The rear panel 101b forms a corner on the right side of the rear of the housing 101. The rear portion 101ba of the rear panel 101b is aligned with the rear portion 101lb of the left side panel 101l in the X-axis direction. The right side portion 101bb of the rear panel 101b is aligned with the right side portion 101rb of the right side panel 101r in the Y-axis direction. The rear portion 101ba of the rear panel 101b forms a part of the rear of the housing 101. The right side portion 101bb of the rear panel 101b is connected to the rear portion 101ba and forms a part of the right side of the housing 101. The length of the rear portion 101ba in the X-axis direction is longer than the length of the right side portion 101bb in the Y-axis direction.

[0062] The top plate 101u and the bottom plate 101d face each other in the Z-axis direction. The front portion 101fa of the front panel 101f and the back portion 101lb of the left side panel 101l face each other in the Y-axis direction. The front portion 101ra of the right side panel 101r and the back portion 101ba of the back panel 101b face each other in the Y-axis direction. The left side portion 101fb of the front panel 101f and the right side portion 101rb of the right side panel 101r face each other in the X-axis direction. The left side portion 101la of the left side panel 101l and the right side portion 101bb of the back panel 101b face each other in the X-axis direction.

[0063] In the housing 101, a service panel 101s is disposed between a right side surface portion 101rb of the right side panel 101r and a right side surface portion 101bb of the rear panel 101b. The service panel 101s is detachable from the housing 101 to allow for arrangement, connection, maintenance, and the like of components within the housing 101. This embodiment also includes a structure in which the service panel 101s is eliminated and the right side surface portion 101rb of the right side panel 101r is connected to the right side surface portion 101bb of the rear panel 101b.

[0064] The front panel 101f has an air outlet 102, which is a circular air outlet for the outdoor unit 10 and opens to match the outer shape of the propeller of the blower 190, and a bell mouth 101fm that extends in a trumpet shape from the air outlet 102 toward the inside of the housing 101. The air outlet 102 is covered by a mesh-like fan guard 101g provided in front of the front panel 101f. When the housing 101 is viewed from above, the fan guard 101g is bent in an L shape and is disposed along a front surface 101fa and a left side surface 101fb of the front panel 101f.

[0065] On the rear side of the housing 101, the area between a rear portion 101ba of the rear panel 101b and a rear portion 101lb of the left side panel 101l forms an inlet 103 of the outdoor unit 10 (FIG. 3). An outdoor heat exchanger 160 is exposed at the inlet 103 of the housing 101. A finger guard 101z is provided behind the outdoor heat exchanger 160 to protect the outdoor heat exchanger 160 from direct impact. The finger guard 101z is formed of wire.

[0066] The air inlet 103 is provided with an outdoor air temperature sensor 180 that detects the temperature of the outdoor air drawn into the air inlet 103. The outdoor air temperature sensor 180 is fixed to the rear part 101ba of the rear panel 101b. The outdoor air temperature sensor 180 is disposed at the right end 103e of the air inlet 103. The outdoor air temperature sensor 180 is disposed at a position slightly higher than half the height of the air inlet 103 in the vertical direction (height: height from the ground surface of the outdoor unit 10 or height from the bottom plate 101d). The outdoor air temperature sensor 180 is provided at the air inlet 103, for example, near the partition plate 20 disposed inside the housing 101.

[0067] The inside of the housing 101 of the outdoor unit 10 is divided by the partition plate 20 into a heat exchange chamber 10H on the left side as viewed from the front and a machine chamber 10M on the right side (FIGS. 3 and 4). Furthermore, the machine chamber 10M is divided into two in the left-right direction by an imaginary plane 10ZY (imaginary plane indicated by dots) surrounded by a dashed line 10LL. The details of dividing the machine chamber 10M in the left-right direction by this imaginary plane 10ZY will be described later. The partition plate 20 is fixed to the bottom plate 101d. The heat exchange chamber 10H of this embodiment is surrounded by the top plate 101u, the bottom plate 101d, the front panel 101f, the left side panel 101l, and the partition plate 20. The inside of the heat exchange chamber 10H is connected to the outside of the housing 101 by the air outlet 102 and the air inlet 103. The machine room 10M of this embodiment is surrounded by a top panel 101u, a bottom panel 101d, a right side panel 101r, a rear panel 101b, a service panel 101s, and a partition plate 20.

[0068] FIG. 5 is a schematic perspective view of the outdoor unit of the heat pump cycle device. FIG. 5 shows the outdoor unit 10 viewed obliquely from the front, with the top plate 101u, the right side panel 101r, and the service panel 101s removed from the housing 101. FIG. 6 is a schematic top view of the outdoor unit of the heat pump cycle device. FIG. 6 shows the housing 101 viewed from the top plate 101u toward the bottom plate 101d. In the state of FIG. 6, the top plate 101u has been removed from the housing 101. Also, in FIG. 6, a recess 28 of a partition plate 20, which will be described later, is omitted.

[0069] The heat exchange chamber 10H accommodates, for example, an outdoor heat exchanger 160 and a blower 190. The outdoor heat exchanger 160 is fixed to a bottom plate 101d. The outdoor heat exchanger 160 is formed in an L-shape when viewed from above the housing 101. For example, the outdoor heat exchanger 160 has a first heat exchange portion 160a extending in the left-right direction, a second heat exchange portion 160b extending in the front-rear direction, and a curved third heat exchange portion 160c connecting the first heat exchange portion 160a and the second heat exchange portion 160b.

[0070] The blower 190 is disposed so as to face the first heat exchange section 160a of the outdoor heat exchanger 160 in the front-rear direction and so as to be close to the air outlet 102. As the blower 190 rotates, outside air flows into the heat exchange chamber 10H from the air inlet 103, and the outside air passes through the outdoor heat exchanger 160, whereby heat exchange occurs between the outside air and the refrigerant flowing through the outdoor heat exchanger 160. The outside air that has passed through the outdoor heat exchanger 160 is discharged from the heat exchange chamber 10H via the air outlet 102 as the blower 190 rotates.

[0071] The machine room 10M accommodates components forming the refrigerant circuit 1c, such as the compressor 110, the four-way valve 120, the expansion valve 150, and the accumulator 170. These components are connected by the refrigerant piping 19. The compressor 110 and the accumulator 170 are fixed to the bottom plate 101d. In addition, the machine room 10M also accommodates components forming the hot water circuit 1h, such as the water-refrigerant heat exchanger 130 and the water pump 140. These components are connected by the water piping 95. In addition, the rear part 101ba of the rear panel 101b is provided with an inlet 91 through which water from the indoor unit 900 flows into the water-refrigerant heat exchanger 130, and an outlet 92 through which water flows out from the water-refrigerant heat exchanger 130 to the indoor unit 900. The water piping 95 is connected to the inlet 91 and the inlet 92.

[0072] The partition plate 20 has a first portion 21 and a second portion 22, and is fixed to the bottom plate 101d. A bent portion 25 is provided between the first portion 21 and the second portion 22 so that the first portion 21 and the second portion 22 intersect with each other. The partition plate 20 has the first portion 21 and the second portion 22 with the bent portion 25 sandwiched between them. The first portion 21 is disposed along a direction intersecting with the front-rear direction. The second portion 22 is disposed along the front-rear direction. The angle formed by the first portion 21 and the second portion 22 is an obtuse angle. The first portion 21 is disposed closer to the outdoor heat exchanger 160 than the second portion 22. The angle formed by the first portion 21 and the outdoor heat exchanger 160 is an acute angle. A part of the space of the heat exchange chamber 10H is formed between the first portion 21 and the outdoor heat exchanger 160. The width of the first portion 21 in the intersecting direction is narrower than the width of the second portion 22 in the front-rear direction.

[0073] <Component layout in outdoor unit> Fig. 7 and Fig. 8 are schematic top views showing the machine room of the outdoor unit. In Fig. 7, the components arranged in the machine room 10M are omitted, and further, in Fig. 7 and Fig. 8, a recess 28 of a partition plate 20, which will be described later, is omitted. In addition, Fig. 9 and Fig. 10 are schematic perspective views showing the positional relationship between the partition plate and the compressor. Fig. 9 shows a state seen from the machine room 10M side, and Fig. 10 shows a state seen from the heat exchange chamber 10HM side.

[0074] As described above, the inside of the housing 101 of the outdoor unit 10 is divided into a heat exchange chamber 10H on the left side and a machine room 10M on the right side by the partition plate 20 when viewed from the front. Furthermore, as shown in FIG. 7, when the inside of the machine room 10M of the outdoor unit 10 is viewed from above, the machine room 10M is divided into two sections (two spaces) in the left-right direction by a boundary line (dashed line) 10BL. Here, "plan view" means a case where the outdoor unit 10 is cut horizontally and viewed from directly above, for example, a case where the outdoor unit 10 is cut on a plane perpendicular to the Z axis, which is the vertical direction of the machine room 10M, and viewed from directly above (in the Z-axis direction). This boundary line 10BL is a virtual line segment formed when the virtual plane 10ZY shown in FIG. 4 is viewed from above, that is, cut on a plane perpendicular to the Z axis. In other words, when the boundary lines 10BL are continuously connected in the vertical direction, the plane 10ZY shown in FIG. 4 is formed. In this way, the machine room 10M has a virtual plane 10fa (a plane surrounded by the boundary line 10BL and the dashed line 10LA) and a plane 10fb (a plane surrounded by the boundary line 10BL and the dashed line 10LB). The planes 10fa and 10fb are virtual planes at any position in the vertical direction of the machine room 10M.

[0075] The machine room 10M having these two planes 10fa and 10fb is divided into a left section (space) to which the plane 10fa belongs and a right section (space) to which the plane 10fb belongs, as shown in FIG. 8. In this embodiment, the left section (space) is the first section 10A, and the right section (space) is the second section 10B. The inside of the machine room 10M is divided into the first section 10A and the second section 10B, each having a predetermined height, in order from the side of the partition plate 20. At this time, the compressor 110 and the accumulator 170 are arranged in the first section 10A, and the water-refrigerant heat exchanger 130 is arranged in the second section 10B. In addition, the water pump 140 is arranged in the second section 10B. In this embodiment, the first section 10A and the second section 10B are each longer in the front-rear direction than in the left-right direction, and have a vertically elongated shape when viewed in a plan view. The partition plate 20 is disposed such that the first portion 21 intersects with the second portion 22 from the bent portion 25. As a result, the length of the first section 10A on the second portion 22 side of the partition plate 20 in the front-rear direction is formed shorter than the length of the imaginary plane 10fa in the front-rear direction. By forming a part of the first section 10A shorter in the front-rear direction, a space is formed in which the end portion of the outdoor heat exchanger 160 adjacent to the first portion 21 of the partition plate 20 is disposed. As a result, the circumferential length (the length in the left-right direction and the length in the up-down direction) of the outdoor heat exchanger 160 can be made longer.

[0076] In the first section 10A, the accumulator 170 and the compressor 110 are arranged in the front-rear direction. For example, in the first section 10A, the compressor 110 is arranged on the front side of the housing 101, and the accumulator 170 is arranged on the rear side of the housing 101. The accumulator 170 and the compressor 110 are arranged along the second part 22 of the partition plate 20. In the second section 10B, the water-refrigerant heat exchanger 130 and the water pump 140 are arranged in the front-rear direction. For example, in the second section 10B, the water pump 140 is arranged on the front side of the housing 101, and the water-refrigerant heat exchanger 130 is arranged on the rear side of the housing 101. The water-refrigerant heat exchanger 130 and the water pump 140 are arranged along the direction in which the accumulator 170 and the compressor 110 are arranged. In other words, the water-refrigerant heat exchanger 130 and the water pump 140 are arranged in the front-rear direction.

[0077] As shown in Fig. 9, the compressor 110 has, for example, a cylindrical outer shell 110a having a motor and a compression mechanism therein (not shown), and a support part 110b that supports the compressor 110 at the bottom of the shell. The support part 110b has a stage 110s that has a triangular shape in plan view, and a through hole is provided at each of the three corners. A part of each of fastening members 110ff1, 110ff2, and 110ff3 (for example, a bolt described later) is inserted into the through hole. The compressor 110 is fixed to the bottom plate 101d by three fixing parts 110f (fixing parts 110f1, 110f2, and 110f3). The fixing portion 110f is composed of fastening members 110ff1, 110ff2, and 110ff3 each composed of a bolt, a nut, and a cylindrical elastic rubber that suppresses the propagation of vibration, through holes provided in the stage 110s through which the fastening members pass, and a through hole provided in the bottom plate 101d. In the compressor 110, two fixing portions 110f1 and 110f2 of the three fixing portions 110f are disposed along the second portion 22 of the partition plate 20.

[0078] In this manner, in this embodiment, the compressor 110 and the accumulator 170 forming the refrigerant circuit 1c, and the water-refrigerant heat exchanger 130 and the water pump 140 forming the hot water circuit 1h are disposed in the machine room 10M of the housing 101. Furthermore, the machine room 10 is divided into a first section 10A and a second section 10B, which are vertically long. Then, the compressor 110 and the accumulator 170 are disposed in the first section 10A so as to be aligned in the front-rear direction, and the water-refrigerant heat exchanger 130 and the water pump 140 are disposed in the second section 10B so as to be aligned in the front-rear direction. That is, the compressor 110 and the accumulator 170 are disposed in the front-rear direction inside the first section 10A, which is long in the front-rear direction. Also, the water-refrigerant heat exchanger 130 and the water pump 140 are disposed in the front-rear direction inside the second section 10B, which is long in the front-rear direction.

[0079] By arranging the compressor 110 and the accumulator 170 so as to be aligned in the front-rear direction, the length of the first section 10A in the left-right direction can be reduced. By arranging the compressor 110 on the front side, two of the fixing parts 110f of the compressor 110, 110f1 and 110f3, can be seen from the front side. The compressor 110 is fixed to the bottom plate 101d by three fastening parts 110ff1, 110ff2, and 110ff3 inserted into the support part 110b. When fixing the compressor 110 to the bottom plate 101d, an operator can access the two fastening members 110ff1 and 110ff3 arranged on the front side from the front side, so that the installation and removal work of the compressor 110 (for example, the operator can tighten and loosen nuts) can be easily performed. On the other hand, by disposing the accumulator 170 on the rear side, the distance between the accumulator 170 and the end of the exterior heat exchanger 160 on the partition plate 20 side is shortened. This shortens the length of the refrigerant piping, and reduces the volume of the space in the machine room 10M where the refrigerant piping is arranged. In this embodiment, a four-way valve 120 is provided on the rear side of the accumulator 170 (FIG. 6). The four-way valve 120 is a valve that switches the flow path of the high-temperature, high-pressure refrigerant discharged from the compressor 110. For example, when generating hot water, the refrigerant discharged from the compressor is made to flow into the water-refrigerant heat exchanger 130.

[0080] In addition, by arranging the water-refrigerant heat exchanger 130 and the water pump 140 side by side in the front-to-rear direction, the length of the second section 10B in the left-to-right direction can be reduced. By arranging the water pump 140 on the front side, an operator can easily access the water pump 140 from the front. On the other hand, by arranging the water-refrigerant heat exchanger 130 on the rear side, the distance between the water-refrigerant heat exchanger 130 and the four-way valve is shortened. This shortens the length of the refrigerant piping when generating hot water, and prevents the temperature of the refrigerant from decreasing before it flows into the water-refrigerant heat exchanger 130.

[0081] With this arrangement, even if the water-refrigerant heat exchanger 130 is arranged inside the housing 101 of the outdoor unit 10, the arrangement area of ​​the compressor 110 and the accumulator 170 and the arrangement area of ​​the water-refrigerant heat exchanger 130 and the water pump 140 can be effectively utilized, and the housing 101 can be prevented from becoming larger.

[0082] In this embodiment, the water-refrigerant heat exchanger 130 and the water pump 140 are disposed in the second section 10B on the service panel 101s side. This allows the water-refrigerant heat exchanger 130 and the water pump 140, which form the hot water circuit 1h, to be installed independently of the refrigerant circuit 1c even after the compressor 110 and the accumulator 170 are installed in the machine room 10M, making it easier to install the water-refrigerant heat exchanger 130 and the water pump 140.

[0083] In addition, in this embodiment, two of the three fixed parts 110f (fixed part 110f1, fixed part 110f2) of the compressor 110 are arranged along the partition plate 20. This makes it possible to reduce the distance between the partition plate 20 and the remaining fixed part 11f3. In other words, the compressor 110 can be arranged close to the partition plate 20, and the length of the first section 10A in the left-right direction can be reduced. This makes it possible to prevent the housing 101 from becoming large. In addition, the arrangement of parts other than the compressor 110 is less likely to be hindered by the fixed part 110f of the compressor 110, improving the degree of freedom in the arrangement of parts other than the compressor 110.

[0084] The partition plate 20 has a first portion 21, a second portion 22, and a bent portion 25. The bent portion 25 is sandwiched between the first portion 21 and the second portion 22, and is provided between the first portion 21 and the second portion 22 such that the first portion 21 and the second portion 22 intersect. The first portion 21 is disposed along a direction intersecting the front-rear direction of the housing 101. The second portion 22 is disposed along the front-rear direction of the housing 101. The width of the first portion 21 is narrower than the width of the second portion 22.

[0085] Also, for example, the partition plate 20 is provided with a protrusion 200 that protrudes toward the heat exchange chamber 10H side. The protrusion 200 includes a first protrusion 210 and a second protrusion 220. The first protrusion 210 is provided on the first portion 21, and the second protrusion 220 is provided on the second portion 22. A portion of the second protrusion 220 on the bottom plate side faces the fixing portion 110f of the compressor 110.

[0086] The first protrusion 210 is formed on the first portion 21 of the partition plate 20. The first protrusion 210 is provided on the lower side of the first portion 21. The first protrusion 210 is formed, for example, in a frustum shape and protrudes from the base portion 210b of the first portion 21 toward the heat exchange chamber 10H. By providing the first protrusion 210 protruding toward the heat exchange chamber 10H on the partition plate 20, it is possible to ensure a distance between the refrigerant piping and the four-way valve connected to the compressor 110 and the partition plate 20. This makes it easier for an operator to install the refrigerant piping and the four-way valve in the heat exchange chamber 10H because contact with the partition plate 20 can be avoided.

[0087] The second protrusion 220 is formed in the second portion 22 of the partition plate 20. The second protrusion 220 is provided on the lower side of the second portion 22. The second protrusion 220 is formed, for example, in a frustum shape and protrudes from the base portion 220b of the second portion 22 toward the heat exchange chamber 10H. In the machine chamber 10M, the second protrusion 220 faces the compressor 110.

[0088] By providing the partition plate 20 with such a convex portion protruding toward the heat exchange chamber 10H, the distance between the compressor 110 and the partition plate 20 can be secured. As a result, when an operator installs the compressor 10H in the heat exchange chamber 10H, the support portion supporting the compressor 110 can be brought close to the partition plate 20 while avoiding contact between the outer casing of the compressor and the partition plate 20. Specifically, since the support portion has a stage 110s having a triangular planar shape, one side of the stage 110s can be brought close to the lower end side of the partition plate 20. Fixing portions are provided at the corners of the stage 110s. Therefore, the portion of the partition plate 20 corresponding to the fixing portions protrudes toward the heat exchange chamber 10H. Also, one end side of the first section 10A in the left-right direction protrudes toward the heat exchange chamber 10H. As a result, the housing 101 can be prevented from becoming large while securing the left-right length of the first section 10A.

[0089] Further, in the partition plate 20, an opening 26 is provided on the bottom plate 101d side of the second portion 22. The opening 26 is provided, for example, on the bottom plate 101d side of the second protrusion 220. The opening 26 is closed by a lid portion 27. By opening the lid portion 27 to the heat exchange chamber 10H side, at least one of the fixing portions 110f (fixing portion 110f2) of the compressor 110 can be seen from the heat exchange chamber 10H toward the machine chamber 10M. The compressor 110 is fixed to the bottom plate 101d by three fixing portions 110f inserted into the support portion. When the compressor 110 is attached to or detached from the bottom plate 101d, by providing such an opening 26 in the partition plate 10, for example, the fixing work of the compressor 110 can be easily performed through the opening 26. Therefore, even if the fixing parts 110f (fixing parts 110f1 and 110f2) are arranged along the partition plate 20 to prevent the housing 101 from becoming large, the fixing parts 110f located on the rear side of the machine room 10M can be accessed without removing the partition plate 20, so that the compressor 110 can be easily detached. Note that even if the partition plate 20 does not have a protrusion, the opening 26 can be provided in the partition plate 20.

[0090] Further, the partition plate 20 is provided with a recess 28 recessed towards the side of the machine room 10M. For example, the recess 28 is provided in the upper part of the partition plate 20, and has a bottom portion 281, a side portion 282, and a side portion 283. The side portion 283 is continuous with the bottom portion 281 and the side portion 282. The bottom portion 281 intersects with each of the side portion 282 and the side portion 283. The side portion 283 intersects with the side portion 282. The effect of providing the recess 28 will be described later.

[0091] Fig. 11 and Fig. 12 are schematic perspective views showing a machine room of an outdoor unit. Fig. 12 shows a state in which the control unit 300 and the terminal block 350 shown in Fig. 11 have been removed. Fig. 11 and Fig. 12 also show the plane 10ZY shown in Fig. 4 in the machine room 10M. In Fig. 11 and Fig. 12, dots are added to some of the plane 10ZY to show the inside of the machine room 10M. Fig. 13 is a schematic perspective view showing the control unit and the terminal block arranged in the housing.

[0092] As described above, the machine room 10M is divided into two sections (first section 10A and second section 10B) in the left-right direction by the boundary line 10BL (FIG. 7). A control unit 300 for the outdoor unit 10 is provided in the upper front part of the first section 10A of the machine room 10M. A terminal block 350 to which power is supplied from outside the outdoor unit 10 is provided in the upper part of the second section 10B of the machine room 10M. The terminal block 350 is disposed rearward of the control unit 300 in the front-rear direction.

[0093] The control unit 300 has a first control board 310 and a second control board 320. The first control board 310 is, for example, an intelligent power module (IPM), and controls the compressor 110, the blower 190, and the like. In this embodiment, the first control board 310 is arranged so that a component mounting surface on which electronic components such as the IPM are mounted faces downward in the vertical direction. In addition, the first control board 310 is arranged so that its longitudinal direction is along the left-right direction. Therefore, in this embodiment, the left end of the first control board 310 in the left-right direction is arranged in the heat exchange chamber 10H beyond the partition plate 22, and the right end of the first control board 310 is arranged in the second section 10B beyond the first section 10A. The second control board 320 controls, for example, the water pump 140, and the like. The second control board 320 is arranged so that its component mounting surface faces forward. In addition, the holding portion of the second control board 320 is fixed to the partition plate 20. In this embodiment, second control board 320 fits entirely within first section 10A. First control board 310 is disposed above second control board 320. The height of second control board 320 from bottom plate 101d is substantially the same as the height of terminal block 350 from bottom plate 101d. In addition, the machine compartment side surface of side portion 282 forming recess 28 abuts against holding portion 312 of first control board 310 (FIG. 13). A portion of the holding portion of first control board 310 is supported by side portion 282.

[0094] In this way, the control unit 300 and the terminal block 350 are arranged at approximately the same height from the bottom plate 101d in the machine room 10M without being overlapped in the vertical direction. Specifically, the height of the second control board 320 from the bottom plate 101d is approximately the same as the height of the terminal block 350 from the bottom plate 101d. This prevents the housing 101 from becoming large in the vertical direction. In addition, the control unit 300 is arranged on the first section 10A side and above the compressor. On the other hand, the terminal block 350 is arranged on the second section 10B side and above the water-refrigerant heat exchanger 130. In this way, by arranging the control unit 300 and the terminal block 350 on the sides of different sections, the heights from the bottom plate 101d can be arranged at approximately the same height, and the housing 101 is prevented from becoming large in the vertical direction. In addition, the second control board 320 that controls the water pump 140 and the water pump 140 are arranged to face the back surface of the front portion 101ra of the right side panel. As a result, when an operator removes the right side panel to access the water pump 140 from the front, the operator can also access the second control board 320 at the same time. In addition, the terminal block 350 is disposed so as to face the rear surface of the service panel 101s. As a result, an operator can connect the power line that supplies power to the outdoor unit 10 to the terminal block 350 by removing the service panel 101s.

[0095] Furthermore, a portion of the first control board 310 protrudes from the first section 10A of the machine room 10M into the heat exchange chamber 10H. A heat dissipation unit 311 such as a heat sink is disposed on the first control board 310 protruding into the heat exchange chamber 10H (FIG. 13). As a result, the heat dissipation unit 311 is exposed to the outside air in the heat exchange chamber 10H, and the first control board 310 is efficiently cooled.

[0096] FIG. 14 is a schematic front view showing the positional relationship between the fan and the first control board in the heat exchange chamber.

[0097] In the outdoor unit 10, the blower 190 is closer to the top plate 101u than to the bottom plate 101d. For example, a distance d1 from the central axis 190c of the blower 190 to the bottom plate 101d is longer than a distance d2 from the central axis 190c to the top plate 101u. In addition, the heat dissipation section 311 of the first control board 310 is disposed on the blower 190 side.

[0098] With this arrangement, the blower 190 is closer to the top plate 101u than to the bottom plate 101d, and therefore the distance between the blower fan and the heat dissipation section 311 is shortened without making the diameter of the blower fan (propeller) of the blower 190 large, so that the heat dissipation section 311 is efficiently cooled and the first control board 310 is efficiently cooled.

[0099] FIG. 15 is a schematic top view showing a state in which the partition plate having the recessed portion formed therein is disposed in the housing.

[0100] The recess 28 of the partition plate 20 is located above the accumulator 170. By providing such a recess 28 on the partition plate 20 near the suction port 103, the volume of the heat exchange chamber 10H can be increased without changing the external size of the housing 101. Specifically, the space above the accumulator 170 arranged in the first section 10A of the machine room 10M is included in the heat exchange chamber 10H. This reduces the ventilation resistance above the accumulator 170, making it easier for the outside air flowing into the heat exchange chamber 10H to pass above the accumulator 170. Therefore, the amount of air passing through the upper part of the heat exchanger portion located on the back side of the accumulator 170 of the heat exchanger 160 increases, improving the heat exchange rate of the entire outdoor heat exchanger 160. Furthermore, a larger amount of outside air hits the heat dissipation portion 311 of the first control board 310, and the first control board 310 is cooled more efficiently.

[0101] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and various modifications can be made. For example, a heat pump type hot water heating device has been described as an example of a heat pump cycle device, but the present device is not limited to this, and can be applied to heat pump cycle devices such as a heat pump type hot water supply device and a heat pump type hot and cold water air conditioner. Each embodiment is not limited to an independent form, and can be combined as far as technically possible. [Explanation of symbols]

[0102] 1. Heat pump cycle device 1h…Hot water circuit 1c…Refrigerant circuit 10...Outdoor unit 10M…Machine room 10H…Heat exchange room 10A…1st Section 10B…Second Section 19…Refrigerant piping 20…Partition plate 200…Convex 21…Part 1 210…First protrusion 22…Second part 220…Second protrusion 25…Bent section 210b, 220b...base part 26…Opening 27…Lid part 28…Recess 281…Bottom 282…Side 283…Side 90…Indoor unit 91...Inlet 92... Outlet 95...Water piping 101…Housing 101u…Tabletop 101d…Bottom plate 101f…Front panel 101fa…front part 101fb…Left side part 101b…Rear panel 101ba…Back part 101bb…Right side part 101r…Right side panel 101ra…front part 101rb…Right side part 101l…Left side panel 101la…Left side part 101lb...Back part 101s…Service panel 101z…Fingered 101fm…Bellmouth 101g…Fan guard 102…Air outlet 103…Suction port 103e...end 110…Compressor 110f…Fixed part 110ff Fastening members 110s…Stage 120...Four-way valve 130…Water refrigerant heat exchanger 140…Water pump 150…Expansion valve 160...Outdoor heat exchanger 160a...1st heat exchange section 160b…Second heat exchange section 160c...Third heat exchange section 170…Accumulator 180…Outside air temperature sensor 190…Blower 190c…Central axis 300…Control unit 310...First control board 311...Heat radiation part 320...Second control board 350…Terminal block 900…Indoor unit

Claims

1. An outdoor unit of a heat pump cycle apparatus including a housing having a top plate, a bottom plate, and a side plate provided between the top plate and the bottom plate, The inside of the housing is divided by a partition plate into a machine chamber that houses a water-refrigerant heat exchanger in which the refrigerant and water exchange heat, a compressor, and an accumulator, and a heat exchange chamber that houses an air-refrigerant heat exchanger in which the refrigerant and air exchange heat, and a blower; When viewed from the top plate toward the bottom plate, the machine room side of the bottom plate is virtually divided into a first section and a second section in this order from the partition plate side, The compressor and the accumulator are disposed in the first section, The water-refrigerant heat exchanger is disposed in the second section, A control unit for the outdoor unit and a terminal block to which power is supplied from outside the outdoor unit are provided at an upper portion of the machine room, the control unit includes a control board, and a height of a portion of the control board from the bottom plate is the same as a height of the terminal block from the bottom plate; The second section further includes a water pump for circulating water through the water-refrigerant heat exchanger. The water-refrigerant heat exchanger and the water pump are arranged in the same direction as the accumulator and the compressor. The outdoor unit of a heat pump cycle device.

2. An outdoor unit of the heat pump cycle apparatus according to claim 1, The control unit has a machine room side end that is disposed beyond the first compartment and into the second compartment. The outdoor unit of a heat pump cycle device.

3. An outdoor unit of the heat pump cycle apparatus according to claim 1, The accumulator and the compressor are arranged along the partition plate. The outdoor unit of a heat pump cycle device.

4. An outdoor unit of the heat pump cycle apparatus according to claim 1, The compressor is fixed to the bottom plate by three fixing parts, Two of the three fixing portions are disposed along the partition plate. The outdoor unit of a heat pump cycle device.

5. The outdoor unit of the heat pump cycle apparatus according to claim 4, A portion of the partition plate corresponding to the fixing portion arranged along the partition plate protrudes toward the heat exchange chamber. The outdoor unit of a heat pump cycle device.

6. An outdoor unit of the heat pump cycle apparatus according to claim 1, The partition plate is provided with a recess that is recessed toward the machine room above the accumulator. The outdoor unit of a heat pump cycle device.

7. An outdoor unit of the heat pump cycle apparatus according to claim 4 or 5, The partition plate has an opening on the bottom plate side through which at least one of the fixing parts can be seen from the heat exchange chamber toward the machine chamber. The outdoor unit of a heat pump cycle device.

8. An outdoor unit of the heat pump cycle apparatus according to claim 1, The control unit of the outdoor unit is provided at an upper portion of the first section, The terminal block to which power is supplied from outside the outdoor unit is provided on the upper portion of the second section. The outdoor unit of a heat pump cycle device.

9. An outdoor unit of the heat pump cycle apparatus according to claim 8, The control unit includes a first control board that controls the compressor and a second control board that controls the water pump. The outdoor unit of a heat pump cycle device.

10. An outdoor unit of the heat pump cycle apparatus according to claim 9, The first control board is disposed above the second control board. The outdoor unit of a heat pump cycle device.

11. An outdoor unit of the heat pump cycle apparatus according to claim 9, the first control board protrudes from the first section into the heat exchange chamber, A heat dissipation unit is disposed on the first control board protruding into the heat exchange chamber. The outdoor unit of a heat pump cycle device.

12. An outdoor unit of the heat pump cycle apparatus according to claim 11, The blower is closer to the top plate than to the bottom plate. The outdoor unit of a heat pump cycle device.

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