Refrigeration cycle unit

Abstract

The intermediate plate (5) is supported on the bottom member (3) by a plurality of second elastic members (12). The first compressor (10) is supported on the intermediate plate (5) by a plurality of first elastic members (11). The second compressor (20) is supported on the same intermediate plate (5) by a plurality of first elastic members (11).

Description

Technical Field

[0001] This disclosure relates to a refrigeration cycle device. Background Technology

[0002] Patent document 1 discloses a heat pump outdoor unit including a first anti-vibration support and an intermediate base. The first anti-vibration support is disposed on the bottom plate of the machine room, the intermediate base is supported by the first anti-vibration support, and has a second anti-vibration support for mounting the feet of the compressor.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Publication No. 2010-243033 Summary of the Invention

[0006] -The technical problem the invention aims to solve-

[0007] However, when using a two-stage compression process for the refrigerant to achieve a refrigeration cycle, or when it is desirable to increase the compressor capacity, multiple compressors need to be installed in the outdoor unit of the heat pump.

[0008] However, in general, there is little free space inside the machine room, and the flexibility in the layout for arranging more than two compressors is very limited.

[0009] The purpose of this disclosure is to make the installation area for multiple compressors more compact.

[0010] - Technical solutions for solving technical problems -

[0011] A first aspect of this disclosure relates to a refrigeration cycle apparatus comprising a housing 2 having a bottom component 3 and a plurality of compressors housed therein, the plurality of compressors including at least a first compressor 10 and a second compressor 20, the first compressor 10 and the second compressor 20 being supported on the same intermediate plate 5 via a plurality of first elastic members 11, the intermediate plate 5 being supported on the bottom component 3 via second elastic members 12.

[0012] In the first aspect, the intermediate plate 5 is supported on the bottom member 3 via a second elastic member 12. The first compressor 10 and the second compressor 20 are supported on the same intermediate plate 5 via a plurality of first elastic members 11.

[0013] Therefore, compared to the case where the first compressor 10 and the second compressor 20 are installed separately, a more compact installation area can be achieved. Furthermore, since the total weight of the structure supported by the second elastic member 12 increases, the vibration damping effect is improved.

[0014] The second aspect of this disclosure, based on the first aspect, is that the intermediate plate 5 is formed by connecting a first intermediate plate 15 and a second intermediate plate 25 together, the first compressor 10 is supported on the first intermediate plate 15, and the second compressor 20 is supported on the second intermediate plate 25.

[0015] In the second aspect, the intermediate plate 5 is formed by connecting the first intermediate plate 15 and the second intermediate plate 25 into one piece. The first compressor 10 and the second compressor 20 are respectively supported on the first intermediate plate 15 and the second intermediate plate 25.

[0016] Therefore, compared with the case where the first intermediate plate 15 and the second intermediate plate 25 are set separately, the setting area can be made more compact.

[0017] The third aspect of this disclosure, based on the second aspect, further includes a third compressor 70, which is supported on a third intermediate plate 75 via a first elastic member 11. The intermediate plate 75 is formed by connecting the first intermediate plate 15, the second intermediate plate 25, and the third intermediate plate 75 together.

[0018] In the third aspect, the intermediate plate 5 is formed by connecting the first intermediate plate 15, the second intermediate plate 25, and the third intermediate plate 75 into one piece. The third compressor 70 is supported on the third intermediate plate 75.

[0019] Thus, a third compressor 70 can be added by the minimal design change of adding a third intermediate plate 75 and connecting it to the other intermediate plates.

[0020] The fourth aspect of this disclosure, based on the second aspect, further includes a third compressor 70, which is supported on the second intermediate plate 25 via a first elastic member 11.

[0021] In the fourth aspect, the third compressor 70 is supported on the second intermediate plate 25 via the first elastic member 11. Thus, the third compressor 70 can be added by such a minimal design change in supporting the second compressor 20 and the third compressor 70 on the second intermediate plate 25.

[0022] Based on any one of the second to fourth aspects, the fifth aspect of this disclosure is that the first intermediate plate 15 and the second intermediate plate 25 are connected as one unit in a state where they partially overlap when viewed from a top view.

[0023] In the fifth aspect, the first intermediate plate 15 and the second intermediate plate 25 are connected as one unit in a state where they partially overlap when viewed from a top view.

[0024] As a result, the area of ​​overlap between the first intermediate plate 15 and the second intermediate plate 25 increases, which ensures the rigidity of the intermediate plate 5.

[0025] Based on any one of the second to fifth aspects, the sixth aspect of this disclosure is that the first intermediate plate 15 and the second intermediate plate 25 are connected as one unit by brazing or welding.

[0026] In the sixth aspect, the first intermediate plate 15 and the second intermediate plate 25 are connected as one unit by brazing or welding.

[0027] Thus, the first intermediate plate 15 and the second intermediate plate 25 are fused and joined together, thereby improving the joint strength of the intermediate plate 5.

[0028] Based on any one of the second to fifth aspects, the seventh aspect of this disclosure is that the first intermediate plate 15 and the second intermediate plate 25 are connected as one unit by rivets or bolts.

[0029] In the seventh aspect, the first intermediate plate 15 and the second intermediate plate 25 are connected as one unit by rivets or bolts.

[0030] Therefore, it is easy to connect the first intermediate plate 15 and the second intermediate plate 25 into one unit.

[0031] Based on any one of the second to fifth aspects of this disclosure, the first intermediate plate 15 and the second intermediate plate 25 are connected as one unit via a third elastic member 13.

[0032] In the eighth aspect, the first intermediate plate 15 and the second intermediate plate 25 are connected as one unit via the third elastic member 13.

[0033] Therefore, the displacement difference caused by the vibration of the first intermediate plate 15 and the second intermediate plate 25 can be mitigated by the third elastic component 13.

[0034] Based on any one of the first to eighth aspects of this disclosure, the ninth aspect of this disclosure states that the weight of the second compressor 20 is less than the weight of the first compressor 10.

[0035] In the ninth aspect, since the weight of the second compressor 20 is less than that of the first compressor 10, the vibration of the second compressor 20 can be reduced by using the weight of the first compressor 10.

[0036] Based on any one of the first to ninth aspects, the tenth aspect of this disclosure defines the center of gravity of the combination of the intermediate plate 5 and the plurality of compressors as P1 from a top-view perspective, the center of gravity of the arrangement of the second elastic member 12 as Q1 from a top-view perspective, and the distance from the center of gravity P1 to the center of gravity of the compressor located at the position closest to the center of gravity P1 as r1 from a top-view perspective, wherein the center of gravity Q1 is located in an area centered on the center of gravity P1 and with the distance r1 as the radius.

[0037] In the tenth aspect, from a top-down view, the center of gravity Q1 is located within a region with a radius of r1, extending from the center of gravity P1 to the center of gravity of the nearest compressor.

[0038] This allows for the construction of a dual vibration-damping structure that ensures freedom in the layout of multiple compressors while taking into account the center of gravity position and provides high vibration reduction.

[0039] The eleventh aspect of this disclosure, based on the tenth aspect, shows that, from a top-down view, the center of gravity P1 and the arrangement center of gravity Q1 substantially coincide.

[0040] In the eleventh aspect, viewed from above, the center of gravity P1 roughly coincides with the arrangement center of gravity Q1. Therefore, a dual vibration-damping structure can be constructed that ensures freedom in the layout of multiple compressors while taking into account the high vibration reduction effect of the center of gravity position.

[0041] Based on any one of the first to ninth aspects, the twelfth aspect of this disclosure defines the center of gravity of the assembly consisting of the intermediate plate 5, the plurality of compressors, and the refrigerant circuit component 31 arranged on the intermediate plate 5 as P2 from a top-view perspective, the center of gravity of the arrangement of the second elastic component 12 as Q1 from a top-view perspective, and the distance from the center of gravity P2 to the center of gravity of the compressor located at the position closest to the center of gravity P2 as r2 from a top-view perspective, wherein the center of gravity Q1 is located in an area centered on the center of gravity P2 and with the distance r2 as the radius.

[0042] In the twelfth aspect, from a top-down view, the center of gravity Q1 is located within a region with a radius of r2, which is the distance from the center of gravity P2 to the center of gravity of the nearest compressor.

[0043] This allows for the construction of a dual vibration-damping structure that ensures freedom in the layout of multiple compressors while taking into account the center of gravity position and provides high vibration reduction.

[0044] The thirteenth aspect of this disclosure, based on the twelfth aspect, shows that, viewed from a top-down perspective, the center of gravity P2 and the arrangement center of gravity Q1 substantially coincide.

[0045] In the thirteenth aspect, viewed from above, the center of gravity P2 roughly coincides with the arrangement center of gravity Q1. Therefore, a dual vibration-damping structure can be constructed that ensures freedom in the layout of multiple compressors while taking into account the high vibration reduction effect of the center of gravity position.

[0046] The fourteenth aspect of this disclosure, based on the tenth or eleventh aspect, provides a fourth elastic member 14 arranged between the intermediate plate 5 and the bottom member 3 at a position that coincides with the center of gravity P1 when viewed from a top angle.

[0047] In the fourteenth aspect, a fourth elastic member 14 is arranged between the intermediate plate 5 and the bottom member 3. The fourth elastic member 14 is arranged at a position that coincides with the center of gravity P1 when viewed from a top angle.

[0048] Therefore, by arranging the fourth elastic component 14 according to the center of gravity, the bending of the intermediate plate 5 caused by compressor vibration can be reduced.

[0049] The fifteenth aspect of this disclosure, based on the twelfth or thirteenth aspect, provides that a fourth elastic member 14 is arranged between the intermediate plate 5 and the bottom member 3 at a position that coincides with the center of gravity P2 when viewed from a top angle.

[0050] In the fifteenth aspect, a fourth elastic member 14 is arranged between the intermediate plate 5 and the bottom member 3. The fourth elastic member 14 is arranged at a position that coincides with the center of gravity P2 when viewed from a top angle.

[0051] Therefore, by arranging the fourth elastic component according to the center of gravity, the bending of the intermediate plate 5 caused by compressor vibration can be reduced.

[0052] Based on any one of the first to fifteenth aspects of this disclosure, the sixteenth aspect of the refrigeration cycle apparatus includes a control unit 100 that controls the operation of the plurality of compressors, the control unit 100 controlling the rotation of the plurality of compressors such that the centrifugal forces generated by the plurality of compressors cancel each other out.

[0053] In the sixteenth aspect, the centrifugal forces generated by multiple compressors are mutually canceled out by controlling the rotation of multiple compressors.

[0054] Therefore, since the vibrations generated by multiple compressors cancel each other out, the vibration damping effect can be further improved. Attached Figure Description

[0055] Figure 1 This is a piping diagram illustrating the structure of the refrigeration cycle apparatus according to the first embodiment of the present invention;

[0056] Figure 2 This is a front view showing the structure of the refrigeration cycle device;

[0057] Figure 3 This is a top view showing the structure of the refrigeration cycle device;

[0058] Figure 4 This is a top view illustrating the arrangement of the first and second compressors;

[0059] Figure 5 This is a variation of the first embodiment, equivalent to Figure 4 The image;

[0060] Figure 6 This is a front view showing the structure of the refrigeration cycle apparatus according to this second embodiment;

[0061] Figure 7 This is a front view showing the structure of the refrigeration cycle apparatus according to this third embodiment;

[0062] Figure 8 This is a front view showing the structure of the refrigeration cycle apparatus according to this fourth embodiment;

[0063] Figure 9 This is a front view showing the structure of the refrigeration cycle apparatus according to this fifth embodiment;

[0064] Figure 10 This is a top view showing the structure of the refrigeration cycle device;

[0065] Figure 11 This is a top view showing the arrangement of the various devices on the intermediate plate in the refrigeration cycle apparatus according to the sixth embodiment of the present invention;

[0066] Figure 12 This is a top view showing the arrangement of the various devices on the intermediate plate in the refrigeration cycle apparatus according to the seventh embodiment of the present invention;

[0067] Figure 13 This is a top view showing the arrangement of the various devices on the intermediate plate in the refrigeration cycle apparatus according to the eighth embodiment. Detailed Implementation

[0068] (First Implementation)

[0069] like Figure 1 As shown, the refrigeration cycle unit 1 heats the fluid to be heated. The fluid to be heated is water. The refrigeration cycle unit 1 supplies the heated water to equipment such as a hot water supply tank, heating coils, and floor heating coils. The refrigeration cycle unit 1 also cools the fluid to be heated. The fluid to be heated is water. The refrigeration cycle unit 1 supplies the cooled water to equipment such as cooling coils. The refrigeration cycle unit 1 includes a refrigerant circuit 30 and a control unit 100.

[0070] [Refrigerant circuit]

[0071] The refrigerant circuit 30 includes a first compressor 10, a second compressor 20, a four-way reversing valve 33, a heat source side heat exchanger 34, a check valve bridge 35, an expansion valve 36, a utilization side heat exchanger 37, a liquid receiver 38, and an intermediate heat exchanger 45.

[0072] The refrigerant circuit 30 is filled with refrigerant. A refrigeration cycle is performed in the refrigerant circuit 30 through refrigerant circulation. Examples of refrigerants include R410A, R32, and R407C.

[0073] <First Compressor>

[0074] The first compressor 10 is, for example, a scroll compressor. The first compressor 10 is located on the discharge side of the second compressor 20. A first suction pipe 51 and a first discharge pipe 52 are connected to the first compressor 10. The first compressor 10 compresses the drawn-in refrigerant and discharges the compressed refrigerant. The capacity of the first compressor 10 is larger than that of the second compressor 20.

[0075] The rotational speed of the first compressor 10 is variable. For example, the rotational speed of the motor can be changed by altering the output frequency of the inverter (not shown) connected to the first compressor 10. As a result, the rotational speed (operating frequency) of the first compressor 10 changes.

[0076] <Second Compressor>

[0077] The second compressor 20 is, for example, a scroll compressor. The second compressor 20 is located on the suction side of the first compressor 10. A second suction pipe 53 and a second discharge pipe 54 are connected to the second compressor 20. A connecting pipe 50 is formed by connecting the inflow end of the first suction pipe 51 to the outflow end of the second discharge pipe 54. The second compressor 20 and the first compressor 10 are connected in series via the connecting pipe 50. The second compressor 20 compresses the drawn-in refrigerant and discharges the compressed refrigerant.

[0078] The speed of the second compressor 20 is variable. For example, the speed of the motor can be changed by altering the output frequency of the inverter (not shown) connected to the second compressor 20. As a result, the speed (operating frequency) of the second compressor 20 changes.

[0079] Four-way directional valve

[0080] The four-way directional valve 33 is an electrically operated directional valve. The four-way directional valve 33 is in its first state ( Figure 1 The state shown by the solid line) and the second state ( Figure 1The valve switches between the states shown by the dashed lines. The first valve port P1 is connected to the outflow end of the first discharge pipe 52. The second valve port P2 is connected to the inflow end of the second suction pipe 53. The third valve port P3 is connected to the gas side end of the heat source side heat exchanger 34. The fourth valve port P4 is connected to the gas side end of the utilization side heat exchanger 37.

[0081] <Heat source side heat exchanger>

[0082] The heat source-side heat exchanger 34 is an outdoor heat exchanger. A fan 39 is arranged near the heat source-side heat exchanger 34. By driving the fan 39, the refrigerant in the heat source-side heat exchanger 34 exchanges heat with the outdoor air.

[0083] <Check valve bridge>

[0084] The check valve bridge 35 has four check valves C. Each of the four check valves C allows the refrigerant to flow along... Figure 1 The flow is directed in the direction indicated by the arrow, and the refrigerant flow is restricted to the opposite direction. The inflow side of the check valve bridge 35 is connected to one end of the main liquid pipe 55. The outflow side of the check valve bridge 35 is connected to the other end of the main liquid pipe 55. The check valve bridge 35 is connected to the liquid side end of the heat source side heat exchanger 34 and the liquid side end of the utilization side heat exchanger 37.

[0085] <Expansion valve>

[0086] Expansion valve 36 expands the refrigerant, thereby reducing the refrigerant pressure. Expansion valve 36 is an electronically adjustable expansion valve. Expansion valve 36 is connected to the main liquid line 55.

[0087] <Utilizing a side heat exchanger>

[0088] A side heat exchanger 37 is used to exchange heat between refrigerant and water. The side heat exchanger 37 has a first flow path 37a and a second flow path 37b. The first flow path 37a is for the refrigerant to flow through. The second flow path 37b is for the water to flow through. The second flow path 37b is connected midway to a side circuit 65 included in the device (not shown). In the side heat exchanger 37, the refrigerant flowing in the first flow path 37a exchanges heat with the water flowing in the second flow path 37b.

[0089] <Liquid Storage>

[0090] The receiver 38 is connected midway through the second suction pipe 53. The receiver 38 is a gas-liquid separator. Inside the receiver 38, the refrigerant is separated into liquid refrigerant and gaseous refrigerant. The receiver 38 is configured to allow only gaseous refrigerant to flow out.

[0091] Bypass circuit

[0092] The bypass circuit 60 has a bypass pipe PB and a bypass check valve 61. The bypass pipe PB is connected between the second suction pipe 53 and the connecting pipe 50. The bypass check valve 61 allows refrigerant to flow from the second suction pipe 53 toward the connecting pipe 50 and restricts refrigerant flow in the opposite direction.

[0093] <Injection Circuit>

[0094] The injection circuit 40 is a circuit that supplies a portion of the refrigerant flowing in the main liquid line 55 to the suction side of the first compressor 10. The injection circuit 40 has an injection pipe PJ, an injection expansion valve 41, and a switching valve 42.

[0095] One end of the injection pipe PJ is connected to the main liquid pipe 55 at the position between the expansion valve 36 and the check valve bridge 35. The other end of the injection pipe PJ branches into two pipes, which are respectively connected to the first suction pipe 51 and the compression chamber of the first compressor 10 in the middle of compression.

[0096] The injection expansion valve 41 is connected to the injection pipe PJ upstream of the intermediate heat exchanger 45. The injection expansion valve 41 reduces the pressure of the refrigerant flowing in the injection pipe PJ.

[0097] The switching valve 42 can be switched between an open state and a closed state. By opening the switching valve 42, a portion of the refrigerant flowing in the injection pipe PJ is supplied to the suction side of the first compressor 10. By closing the switching valve 42, the refrigerant flowing in the injection pipe PJ is supplied to the compression chamber of the first compressor 10, which is in the middle of compression.

[0098] Intermediate heat exchanger

[0099] The intermediate heat exchanger 45 has a third flow path 45a and a fourth flow path 45b. The third flow path 45a is connected midway through the main liquid pipe 55. The fourth flow path 45b is connected midway through the injection pipe PJ. In the intermediate heat exchanger 45, the refrigerant flowing in the third flow path 45a exchanges heat with the refrigerant flowing in the fourth flow path 45b.

[0100] 〔sensor〕

[0101] The refrigeration cycle unit 1 has various sensors, such as a temperature sensor that detects the temperature of the refrigerant and a pressure sensor that detects the pressure of the refrigerant. Signals indicating the detection results of the various sensors are sent to the control unit 100.

[0102] [Control Department]

[0103] The refrigeration cycle unit 1 has a control unit 100. The control unit 100 has a microcomputer and a storage device for storing software for making the microcomputer work.

[0104] The control unit 100 controls the refrigerant circuit 30 based on signals from various sensors and external control signals. The control unit 100 outputs control signals to the first compressor 10, the second compressor 20, the four-way reversing valve 33, the expansion valve 36, the injection expansion valve 41, and the switching valve 42. The detection values ​​from various sensors are input to the control unit 100.

[0105] [Operation of the refrigeration unit]

[0106] In the refrigeration cycle unit 1, heating and cooling operations are performed. In the refrigeration cycle unit 1, the first compressor 10 functions as a high-level compressor, and the second compressor 20 functions as a low-level compressor.

[0107] <Heating Operation>

[0108] During heating operation, a refrigeration cycle is performed where the heat exchanger on the utilization side 37 becomes a condenser (radiator) and the heat exchanger on the heat source side 34 becomes an evaporator. Specifically, the four-way reversing valve 33 is set to the first state.

[0109] The refrigerant discharged from the first compressor 10 passes through the four-way reversing valve 33 and condenses by releasing heat to water in the utilization-side heat exchanger 37. The refrigerant flowing out of the utilization-side heat exchanger 37 passes through the check valve bridge 35 and flows in the main liquid pipe 55. The refrigerant flowing through the main liquid pipe 55 is subcooled by releasing heat to the refrigerant flowing in the fourth flow path 45b in the third flow path 45a of the intermediate heat exchanger 45. Then, a portion of the refrigerant flowing through the main liquid pipe 55 flows into the injection pipe PJ, while the remaining refrigerant is depressurized by the expansion valve 36 of the main liquid pipe 55.

[0110] The depressurized refrigerant evaporates in the heat exchanger 34 on the heat source side after passing through the check valve bridge 35. The refrigerant flowing out of the heat exchanger 34 passes sequentially through the four-way reversing valve 33 and the receiver 38, and is then drawn into the second compressor 20 and compressed. The refrigerant discharged from the second compressor 20 is drawn into the first compressor 10 and compressed.

[0111] On the other hand, the refrigerant flowing into the injection pipe PJ is depressurized by the expansion valve 41, and then evaporates in the fourth flow path 45b of the intermediate heat exchanger 45 by absorbing heat from the refrigerant flowing in the third flow path 45a. Then, the refrigerant flowing in the injection pipe PJ is introduced into the first suction pipe 51 of the first compressor 10.

[0112] Cooling Operation

[0113] During cooling operation, a refrigeration cycle is performed where the heat source-side heat exchanger 34 becomes a condenser (radiator) and the utilization-side heat exchanger 37 becomes an evaporator. Specifically, the four-way reversing valve 33 is set to the second state. It should be noted that the description of refrigerant flow during cooling operation is omitted.

[0114] [Arrangement of equipment within the refrigeration cycle unit]

[0115] like Figure 2 and Figure 3 As shown, the refrigeration cycle device 1 includes a housing 2. The housing 2 has a bottom part 3 and a cover part 4.

[0116] The interior of the casing 2 is divided into a heat exchange chamber S1 and a mechanical chamber S2 by a partition 5. A cover component 4 covers the heat exchange chamber S1 and the mechanical chamber S2. A heat source-side heat exchanger 34 and a fan 39 are arranged in the heat exchange chamber S1. By driving the fan 39, the refrigerant flowing in the heat source-side heat exchanger 34 exchanges heat with the outdoor air.

[0117] In the machine room S2, there are arranged... Figure 1 Multiple devices are enclosed by virtual frames. Specifically, a first compressor 10, a second compressor 20, and refrigerant circuit component 31 constituting a refrigerant circuit 30 are arranged in the machine room S2. It should be noted that a control unit 100, not shown, is arranged in the machine room S2.

[0118] The first compressor 10 is supported on the intermediate plate 5 by a plurality of first elastic members 11. Specifically, the first compressor 10 has first support feet 16. Three first elastic members 11 are arranged between the first support feet 16 and the intermediate plate 5.

[0119] The second compressor 20 is supported on the same intermediate plate 5 by a plurality of first elastic members 11. Specifically, the second compressor 20 has second support feet 26. Three first elastic members 11 are arranged between the second support feet 26 and the intermediate plate 5.

[0120] It should be noted that the first elastic component 11 can be made of a single large piece or divided into two or more parts, as long as it can support the first compressor 10 and the second compressor 20. The first elastic component 11 is made of rubber or polyurethane.

[0121] The intermediate plate 5 is supported on the bottom part 3 of the housing 2 by a plurality of second elastic members 12. Four second elastic members 12 are arranged between the intermediate plate 5 and the bottom part 3. The second elastic members 12 are respectively arranged at the four corners of the intermediate plate 5.

[0122] It should be noted that the second elastic component 12 can be composed of a single large piece or divided into two or more parts. The second elastic component 12 is made of rubber or polyurethane. The material and spring constant of the first elastic component 11 and the second elastic component 12 can be the same as or different from each other.

[0123] The first compressor 10 and the second compressor 20 are arranged on a double vibration-damping structure achieved by the first elastic member 11, the intermediate plate 5, and the second elastic member 12. Therefore, even if the first compressor 10 and the second compressor 20 vibrate during the operation of the refrigeration cycle device 1, the transmission of their vibration and the generation of noise can be suppressed.

[0124] The first compressor 10 and the second compressor 20 are supported on the same intermediate plate 5 via multiple first elastic members 11. This allows for a more compact installation area compared to having the first compressor 10 and the second compressor 20 installed separately. Furthermore, the increased total weight of the structure supported by the second elastic members 12 improves vibration damping.

[0125] Because the capacity of the first compressor 10 is larger than that of the second compressor 20, the weight of the first compressor 10 is greater than that of the second compressor 20. Therefore, the weight of the first compressor 10 can be used to reduce the vibration of the relatively lighter second compressor 20.

[0126] <Regarding the arrangement of focal points>

[0127] The center of gravity is positioned at the point that becomes the vibration center (antinode) of the intermediate plate 5. In other words, the center of gravity is positioned at the point where the amplitude of the vibration of the intermediate plate 5 is the largest.

[0128] exist Figure 4 In the example shown, the four second elastic members 12 are constructed of the same material, have the same area, and the same thickness. Therefore, the center of gravity Q1 of the arrangement of the second elastic members 12 is in... Figure 4 The straight line connecting the upper left and lower right of the second elastic component 12 is in line with the line in the middle. Figure 4 The intersection of the straight lines connecting the lower left and upper right of the second elastic component 12.

[0129] exist Figure 4 In the example shown, three first elastic components 11 are arranged at the vertices of an equilateral triangle. The three first elastic components 11 are made of the same material, have the same area, and the same thickness. Therefore, from a top view, the centroid of the arrangement of the first elastic components 11 is the centroid of the equilateral triangle.

[0130] The first compressor 10 is cylindrical. The center of gravity C1 of the first compressor 10 is located at... Figure 4 At approximately the center of the circle. Figure 4In the middle, from a top-down view, the center of gravity C1 of the first compressor 10 coincides with the center of gravity of the arrangement of the three first elastic components 11 supporting the first support foot 16.

[0131] The second compressor 20 is cylindrical. The center of gravity C2 of the second compressor 20 is located at... Figure 4 At approximately the center of the circle. Figure 4 In the view from above, the center of gravity C2 of the second compressor 20 coincides with the center of gravity of the arrangement of the three first elastic components 11 supporting the second support foot 26.

[0132] Here, from a top-down view, the center of gravity of the assembly consisting of the intermediate plate 5, the first compressor 10, and the second compressor 20 is designated as center of gravity P1. From a top-down view, center of gravity P1 is located near the center of gravity Q1 of the arrangement of the second elastic member 12.

[0133] Specifically, since the weight of the first compressor 10 is greater than that of the second compressor 20, its center of gravity P1 is located offset towards the first compressor 10 from the arrangement center of gravity Q1. Therefore, the first compressor 10 is the compressor located closest to the center of gravity P1. Here, from a top-down view, the distance from the center of gravity P1 to the first compressor 10 is defined as r1. The arrangement center of gravity Q1 is located within a region centered on the center of gravity P1 and with a radius of r1. It should be noted that the center of gravity P1 can also be made to approximately coincide with the arrangement center of gravity Q1 of the second elastic member 12 from a top-down view.

[0134] Thus, a dual vibration-damping structure can be constructed that ensures the freedom of layout for arranging the first compressor 10 and the second compressor 20 while taking into account the high vibration reduction effect of the center of gravity position.

[0135] It should be noted that, in order to suppress the vibration generated by the first compressor 10 and the second compressor 20 from being transmitted to the housing 2, the control unit 100 can also be used to control the operation of the first compressor 10 and the second compressor 20.

[0136] For example, the control unit 100 controls the rotation of the first compressor 10 and the second compressor 20 so that they rotate in the same direction but are 180° out of phase. As a result, the centrifugal forces generated by the first compressor 10 and the second compressor 20 cancel each other out.

[0137] As a result, the vibrations generated by the first compressor 10 and the second compressor 20 cancel each other out, thereby further improving the vibration damping effect.

[0138] -Effects of the implementation method-

[0139] In feature 1 of the embodiment, the intermediate plate 5 is supported on the bottom member 3 via a second elastic member 12. The first compressor 10 and the second compressor 20 are supported on the same intermediate plate 5 via a plurality of first elastic members 11.

[0140] According to feature 1 of the embodiment, compared to the case where the first compressor 10 and the second compressor 20 are installed separately, the installation area can be made more compact. Furthermore, since the total weight of the structure supported by the second elastic member 12 increases, the vibration damping effect is improved.

[0141] In feature 2 of the implementation, the weight of the second compressor 20 is less than the weight of the first compressor 10.

[0142] According to feature 2 of the embodiment, the vibration of the second compressor 20 can be reduced by using the weight of the first compressor 10.

[0143] In feature 3 of the implementation, from a top view, the arrangement center of gravity Q1 is located within a region with a radius of r1 from the center of gravity P1 to the center of gravity of the nearest compressor.

[0144] According to feature 3 of the implementation method, a dual vibration-damping structure can be constructed that ensures the freedom of layout for arranging multiple compressors and takes into account the high vibration reduction effect of the center of gravity position.

[0145] In feature 4 of the implementation method, from a top view, the center of gravity P1 and the arrangement center of gravity Q1 are approximately coincident.

[0146] According to feature 4 of the implementation method, a dual vibration-damping structure can be constructed that ensures the degree of freedom in the layout for arranging multiple compressors and takes into account the high vibration reduction effect of the center of gravity position.

[0147] According to feature 5 of the embodiment, by controlling the rotation of the first compressor 10 and the second compressor 20, the centrifugal forces generated by the first compressor 10 and the second compressor 20 cancel each other out.

[0148] According to feature 5 of the implementation method, since the vibrations generated by multiple compressors cancel each other out, the vibration resistance can be further improved.

[0149] - Variations of the first embodiment -

[0150] like Figure 5 As shown, a first compressor 10, a second compressor 20, and multiple refrigerant circuit components 31 are arranged on the intermediate plate 5. Figure 5 In the example shown, the refrigerant circuit component 31 utilizes a side heat exchanger 37 and a liquid receiver 38.

[0151] exist Figure 5In the example shown, the center of gravity Q1 of the arrangement of the second elastic member 12 is at... Figure 5 The straight line connecting the upper left and lower right of the second elastic component 12 is in line with the line in the middle. Figure 5 The intersection of the straight lines connecting the lower left and upper right of the second elastic component 12.

[0152] Here, viewed from above, the center of gravity of the assembly consisting of the intermediate plate 5, the first compressor 10, the second compressor 20, the side heat exchanger 37, and the liquid reservoir 38 is designated as center of gravity P2. Viewed from above, center of gravity P2 is located near the center of gravity Q1 of the arrangement of the second elastic component 12.

[0153] Specifically, since the first compressor 10 and the second compressor 20 are arranged closer to the center of gravity Q1 than the center of gravity Q1 Figure 5 The center of gravity P2 is located on the lower side, therefore it is offset downwards from the arrangement center of gravity Q1. Furthermore, since the weight of the first compressor 10 is greater than the weight of the second compressor 20, the center of gravity P2 is located offset towards the first compressor 10 from the arrangement center of gravity Q1. Thus, the center of gravity P2 is located towards the first compressor 10 from the arrangement center of gravity Q1. Figure 5 The position offset to the lower right side.

[0154] At this point, the first compressor 10 is the compressor located closest to the center of gravity P2. Here, viewed from above, the distance from the center of gravity P2 to the first compressor 10 is defined as r2. The center of gravity Q1 is positioned within a region centered on the center of gravity P2 and with a radius of r2. It should be noted that the center of gravity P2 can also be positioned so that, viewed from above, it approximately coincides with the center of gravity Q1 of the second elastic component 12.

[0155] Thus, a dual vibration-damping structure can be constructed that ensures the freedom of layout for arranging the first compressor 10 and the second compressor 20 while taking into account the high vibration reduction effect of the center of gravity position.

[0156] It should be noted that the first compressor 10, the second compressor 20, the liquid receiver 38, and the refrigerant circuit component 31 other than the side heat exchanger 37 can also be arranged on the intermediate plate 5, which are omitted from the figure. For example, the refrigerant circuit component 31 includes an intermediate heat exchanger 45, a four-way reversing valve 33, a check valve bridge 35, an expansion valve 36, and a bypass check valve 61, etc.

[0157] (Second Implementation)

[0158] Below, the same symbols are used to mark the parts that are the same as those in the first embodiment described above, and only the differences are explained.

[0159] like Figure 6As shown, the intermediate plate 5 has a first intermediate plate 15 and a second intermediate plate 25. The first compressor 10 is supported on the first intermediate plate 15 via a plurality of first elastic members 11. The second compressor 20 is supported on the second intermediate plate 25 via a plurality of first elastic members 11.

[0160] The intermediate plate 5 is formed by connecting the first intermediate plate 15 and the second intermediate plate 25 into one piece. The first intermediate plate 15 and the second intermediate plate 25 are connected into one piece by the connecting component 27.

[0161] Specifically, a pair of connecting parts 27 are arranged vertically, sandwiching the intermediate plate 5. The left end of the first intermediate plate 15 abuts against the right end of the second intermediate plate 25. The pair of connecting parts 27 respectively cover the boundary positions of the first intermediate plate 15 and the second intermediate plate 25.

[0162] The connecting component 27, the first intermediate plate 15, and the second intermediate plate 25 are connected together by brazing or welding. As a result, the first intermediate plate 15 and the second intermediate plate 25 are fused and joined together, thereby improving the joint strength of the intermediate plates 5.

[0163] It should be noted that the connecting component 27 may be omitted, and the first intermediate plate 15 and the second intermediate plate 25 may be connected as one unit by hard brazing or welding at the boundary position of the first intermediate plate 15 and the second intermediate plate 25.

[0164] Furthermore, the connecting component 27, the first intermediate plate 15, and the second intermediate plate 25 can also be connected together by rivets or bolts. This allows for easy connection of the first intermediate plate 15 and the second intermediate plate 25.

[0165] (Third Implementation)

[0166] like Figure 7 As shown, the intermediate plate 5 has a first intermediate plate 15 and a second intermediate plate 25. The first compressor 10 is supported on the first intermediate plate 15 via a plurality of first elastic members 11. The second compressor 20 is supported on the second intermediate plate 25 via a plurality of first elastic members 11.

[0167] The intermediate plate 5 is formed by connecting the first intermediate plate 15 and the second intermediate plate 25 into one piece. The first intermediate plate 15 and the second intermediate plate 25 are connected into one piece in a state where they partially overlap when viewed from a top angle.

[0168] Specifically, the second intermediate plate 25 has a connecting portion 28. The connecting portion 28 is formed by bending the end of the second intermediate plate 25 located on the side of the first intermediate plate 15 into a stepped shape. The connecting portion 28 of the second intermediate plate 25 coincides with the first intermediate plate 15 when viewed from a top angle.

[0169] The connecting portion 28 of the first intermediate plate 15 and the second intermediate plate 25 is connected as a whole, for example, by brazing or welding. Alternatively, the connecting portion 28 of the first intermediate plate 15 and the second intermediate plate 25 can also be connected as a whole by rivets or bolts.

[0170] Therefore, the overlapping area of ​​the first intermediate plate 15 and the second intermediate plate 25 increases, which ensures the rigidity of the intermediate plate 5. It should be noted that the connecting part 28 can also be provided on the side of the first intermediate plate 15.

[0171] (Fourth Implementation)

[0172] like Figure 8 As shown, the intermediate plate 5 has a first intermediate plate 15 and a second intermediate plate 25. The first compressor 10 is supported on the first intermediate plate 15 via a plurality of first elastic members 11. The second compressor 20 is supported on the second intermediate plate 25 via a plurality of first elastic members 11.

[0173] The intermediate plate 5 is formed by connecting the first intermediate plate 15 and the second intermediate plate 25 together. The first intermediate plate 15 and the second intermediate plate 25 are connected together by the third elastic member 13.

[0174] Specifically, the second intermediate plate 25 has a connecting portion 28. The connecting portion 28 is formed by bending the end of the second intermediate plate 25 located on the side of the first intermediate plate 15 into a stepped shape. The connecting portion 28 of the second intermediate plate 25 coincides with the first intermediate plate 15 when viewed from a top angle.

[0175] A third elastic member 13 is arranged between the connecting portion 28 of the second intermediate plate 25 and the first intermediate plate 15. The first intermediate plate 15 and the second intermediate plate 25 are connected as one unit via the third elastic member 13. The third elastic member 13 is made of rubber or polyurethane. The third elastic member 13 is bonded to both the first intermediate plate 15 and the second intermediate plate 25.

[0176] Therefore, the displacement difference caused by the vibration of the first intermediate plate 15 and the second intermediate plate 25 can be mitigated by the third elastic component 13.

[0177] (Fifth Implementation)

[0178] like Figure 9 and Figure 10 As shown, the first compressor 10 and the second compressor 20 are arranged on the same intermediate plate 5. Here, from a top view, the center of gravity of the assembly consisting of the intermediate plate 5, the first compressor 10, and the second compressor 20 is designated as the center of gravity P1. Between the intermediate plate 5 and the bottom component 3, a fourth elastic component 14 is arranged at a position coinciding with the center of gravity P1 from a top view. The fourth elastic component 14 is made of rubber or polyurethane.

[0179] Therefore, by arranging the fourth elastic component 14 according to the center of gravity, the bending of the intermediate plate 5 caused by the vibration of the first compressor 10 and the second compressor 20 can be reduced.

[0180] It should be noted that, as Figure 5 As shown, when the first compressor 10, the second compressor 20, the side heat exchanger 37, and the liquid reservoir 38 are arranged on the intermediate plate 5, the fourth elastic component 14 can be arranged at a position that coincides with the center of gravity P2 when viewed from above.

[0181] (Sixth Implementation Method)

[0182] like Figure 11 As shown, a first compressor 10, a second compressor 20, and a third compressor 70 are arranged on the intermediate plate 5. The intermediate plate 5 is formed by connecting the first intermediate plate 15, the second intermediate plate 25, and the third intermediate plate 75 into one piece.

[0183] The second intermediate plate 25 is located at the lower left corner of the first intermediate plate 15. The third intermediate plate 75 is located at the upper left corner of the first intermediate plate 15. The second intermediate plate 25 and the third intermediate plate 75 are connected as one unit so that, when viewed from above, they partially overlap with the first intermediate plate 15.

[0184] Specifically, the second intermediate plate 25 has a connecting portion 28. The connecting portion 28 is formed by bending the end of the second intermediate plate 25 located on the side of the first intermediate plate 15 into a stepped shape. The connecting portion 28 of the second intermediate plate 25 coincides with the first intermediate plate 15 when viewed from a top angle.

[0185] The third intermediate plate 75 has a connecting portion 78. The connecting portion 78 is formed by bending the end of the third intermediate plate 75 located on the side of the first intermediate plate 15 into a stepped shape. The connecting portion 78 of the third intermediate plate 75 coincides with the first intermediate plate 15 when viewed from a top angle.

[0186] The connecting portion 28 between the first intermediate plate 15 and the second intermediate plate 25, and the connecting portion 78 between the first intermediate plate 15 and the third intermediate plate 75, are connected together, for example, by brazing or welding. Alternatively, the connecting portion 28 between the first intermediate plate 15 and the second intermediate plate 25, and the connecting portion 78 between the first intermediate plate 15 and the third intermediate plate 75, can also be connected together by rivets or bolts.

[0187] The first compressor 10 is supported on a first intermediate plate 15 by a plurality of first elastic members 11. The first compressor 10 has first support feet 16. Three first elastic members 11 are arranged between the first support feet 16 and the first intermediate plate 15. A plurality of refrigerant circuit components 31 are arranged on the first intermediate plate 15. Figure 11In the example shown, the refrigerant circuit component 31 utilizes a side heat exchanger 37 and a liquid receiver 38.

[0188] The second compressor 20 is supported on the second intermediate plate 25 by a plurality of first elastic members 11. The second compressor 20 has a second support foot 26. Three first elastic members 11 are arranged between the second support foot 26 and the second intermediate plate 25.

[0189] The third compressor 70 is supported on a third intermediate plate 75 by a plurality of first elastic members 11. The third compressor 70 has a third support foot 76. Three first elastic members 11 are arranged between the third support foot 76 and the third intermediate plate 75.

[0190] A plurality of second elastic members 12 are arranged between the first intermediate plate 15 and the bottom member 3. The second elastic members 12 are arranged at the four corners of the first intermediate plate 15.

[0191] A plurality of second elastic members 12 are arranged between the second intermediate plate 25 and the bottom member 3. The second elastic members 12 are arranged at the upper left and lower left corners of the second intermediate plate 25.

[0192] A plurality of second elastic members 12 are arranged between the third intermediate plate 75 and the bottom member 3. The second elastic members 12 are arranged at the upper left and lower left corners of the third intermediate plate 75.

[0193] Thus, a third compressor 70 can be added by the minimal design change of adding a third intermediate plate 75 and connecting it to the first intermediate plate 15.

[0194] (Seventh Implementation)

[0195] like Figure 12 As shown, a first compressor 10, a second compressor 20, and a third compressor 70 are arranged on the intermediate plate 5. The intermediate plate 5 has a first intermediate plate 15 and a second intermediate plate 25.

[0196] The second intermediate plate 25 has a connecting portion 28. The connecting portion 28 is formed by bending the end of the second intermediate plate 25 located on the side of the first intermediate plate 15 into a stepped shape. From a top view, the connecting portion 28 of the second intermediate plate 25 coincides with the first intermediate plate 15. The intermediate plate 5 is formed by connecting the first intermediate plate 15 and the connecting portion 28 of the second intermediate plate 25 into one piece.

[0197] The first compressor 10 is supported on a first intermediate plate 15 via a plurality of first elastic members 11. A plurality of refrigerant circuit components 31 are arranged on the first intermediate plate 15. Figure 12 In the example shown, the refrigerant circuit component 31 utilizes a side heat exchanger 37 and a liquid receiver 38.

[0198] The second compressor 20 is supported on the second intermediate plate 25 via a plurality of first elastic members 11. The third compressor 70 is supported on the second intermediate plate 25 via a plurality of first elastic members 11.

[0199] A plurality of second elastic members 12 are arranged between the first intermediate plate 15 and the bottom member 3. The second elastic members 12 are arranged at the four corners of the first intermediate plate 15.

[0200] A plurality of second elastic members 12 are arranged between the second intermediate plate 25 and the bottom member 3. The second elastic members 12 are arranged at the upper left and lower left corners of the second intermediate plate 25.

[0201] Thus, by making such a minimal design change that supports the second compressor 20 and the third compressor 70 on the second intermediate plate 25, it is possible to add a third compressor 70.

[0202] (Eighth Implementation Method)

[0203] like Figure 13 As shown, a first compressor 10, a second compressor 20, and a third compressor 70 are arranged on the intermediate plate 5. The intermediate plate 5 has a first intermediate plate 15, a second intermediate plate 25, and a third intermediate plate 75.

[0204] The second intermediate plate 25 has a connecting portion 28. The connecting portion 28 is formed by bending the end of the second intermediate plate 25 located on the side of the first intermediate plate 15 into a stepped shape. From a top view, the connecting portion 28 of the second intermediate plate 25 coincides with the first intermediate plate 15.

[0205] The third intermediate plate 75 has a connecting portion 78. The connecting portion 78 is formed by bending the end of the third intermediate plate 75 located on the side of the second intermediate plate 25 into a stepped shape. From a top view, the connecting portion 78 of the third intermediate plate 75 coincides with the second intermediate plate 25.

[0206] The connecting portion 28 of the second intermediate plate 25 is connected to the first intermediate plate 15 as a whole. The connecting portion 78 of the third intermediate plate 75 is connected to the second intermediate plate 25 as a whole. Thus, the intermediate plate 5 is constructed by connecting the first intermediate plate 15, the second intermediate plate 25 and the third intermediate plate 75 as a whole.

[0207] The first compressor 10 is supported on a first intermediate plate 15 via a plurality of first elastic members 11. A plurality of refrigerant circuit components 31 are arranged on the first intermediate plate 15. Figure 13 In the example shown, the refrigerant circuit component 31 utilizes a side heat exchanger 37 and a liquid receiver 38.

[0208] The second compressor 20 is supported on the second intermediate plate 25 via a plurality of first elastic members 11. The third compressor 70 is supported on the second intermediate plate 25 via a plurality of first elastic members 11.

[0209] A plurality of second elastic members 12 are arranged between the first intermediate plate 15 and the bottom member 3. The second elastic members 12 are arranged at the four corners of the first intermediate plate 15.

[0210] A plurality of second elastic members 12 are arranged between the second intermediate plate 25 and the bottom member 3. The second elastic members 12 are arranged at the upper left and lower left corners of the second intermediate plate 25.

[0211] A plurality of second elastic members 12 are arranged between the third intermediate plate 75 and the bottom member 3. The second elastic members 12 are arranged at the upper left and lower left corners of the third intermediate plate 75.

[0212] Thus, a third compressor 70 can be added by the minimal design change of adding a third intermediate plate 75 and connecting it to the other intermediate plates.

[0213] (Other implementation methods)

[0214] The above implementation method can also adopt the following structure.

[0215] In this embodiment, a structure including two or three compressors is described, but it may also include a structure including four or more compressors.

[0216] The embodiments and variations have been described above, but it should be understood that various changes can be made to the manner and specific circumstances without departing from the spirit and scope of the claims. The embodiments and variations described above can also be appropriately combined and substituted as long as the function of the object of this disclosure is not affected. Furthermore, the terms "first," "second," "third," etc., in the specification and claims are only used to distinguish statements containing these terms and are not intended to limit the number or order of the statements.

[0217] -Industry Applicability-

[0218] In summary, this disclosure is useful for refrigeration cycle devices.

[0219] - Symbol Explanation -

[0220] 1. Refrigeration cycle device

[0221] 2. Shell

[0222] 3. Bottom component

[0223] 5. Intermediate Plate

[0224] 10 First Compressor

[0225] 11 First elastic component

[0226] 12 Second elastic component

[0227] 13 Third elastic component

[0228] 14 Fourth elastic component

[0229] 15 First intermediate plate

[0230] 20 Second compressor

[0231] 25 Second intermediate plate

[0232] 31 Components of the refrigerant circuit

[0233] 70 Third Compressor

[0234] 75 Third Intermediate Plate

[0235] 100 Control Department

[0236] P1 Center of Gravity

[0237] P2 Center of Gravity

[0238] Q1. Layout the center of gravity

Claims

1. A refrigeration cycle apparatus comprising a casing (2) having a bottom member (3) and a plurality of compressors housed in the casing (2), characterized in that: the plurality of compressors includes at least a first compressor (10) having a first supporting leg (16) and a second compressor (20) having a second supporting leg (26), the first supporting leg (16) of the first compressor (10) and the second supporting leg (26) of the second compressor (20) are supported on an intermediate plate (5) via a plurality of first elastic members (11), the intermediate plate (5) is supported on the bottom member (3) via a second elastic member (12), the intermediate plate (5) is formed by joining a first intermediate plate (15) and a second intermediate plate (25) in one body, the first supporting leg (16) of the first compressor (10) is supported on the first intermediate plate (15), and the second supporting leg (26) of the second compressor (20) is supported on the second intermediate plate (25).

2. The refrigeration cycle apparatus according to claim 1, characterized in that: the plurality of compressors further includes a third compressor (70), the third compressor (70) is supported on a third intermediate plate (75) via a first elastic member (11), and the intermediate plate (5) is formed by joining the first intermediate plate (15), the second intermediate plate (25) and the third intermediate plate (75) in one body.

3. The refrigeration cycle apparatus according to claim 1, characterized in that: the plurality of compressors further includes a third compressor (70), and the third compressor (70) is supported on the second intermediate plate (25) via a first elastic member (11).

4. The refrigeration cycle apparatus according to any one of claims 1 to 3, characterized in that: the first intermediate plate (15) and the second intermediate plate (25) are joined in one body in a state in which a part thereof overlaps from a plan view.

5. The refrigeration cycle apparatus according to any one of claims 1 to 3, characterized in that: the first intermediate plate (15) and the second intermediate plate (25) are joined in one body by brazing or welding.

6. The refrigeration cycle apparatus according to any one of claims 1 to 3, characterized in that: the first intermediate plate (15) and the second intermediate plate (25) are joined in one body by a rivet or a bolt.

7. The refrigeration cycle apparatus according to any one of claims 1 to 3, characterized in that: the first intermediate plate (15) and the second intermediate plate (25) are joined in one body via a third elastic member (13).

8. The refrigeration cycle apparatus according to any one of claims 1 to 3, characterized in that: the weight of the second compressor (20) is smaller than the weight of the first compressor (10).

9. The refrigeration cycle apparatus according to any one of claims 1 to 3, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ A center of gravity of a combination of the intermediate plate (5) and the plurality of compressors is set as P1 from a plan view, a layout center of gravity of the second elastic member (12) is set as Q1 from the plan view, and a distance from the center of gravity P1 to a center of gravity of the compressor located closest to the center of gravity P1 is set as r1 from the plan view, The layout center of gravity Q1 is located within an area centered on the center of gravity P1 and having the distance r1 as a radius.

10. The refrigeration cycle apparatus according to claim 9, wherein: The center of gravity P1 and the layout center of gravity Q1 substantially coincide with each other from a plan view.

11. The refrigeration cycle apparatus according to any one of claims 1 to 3, wherein: A center of gravity of a combination of the intermediate plate (5), the plurality of compressors, and a refrigerant circuit constituent member (31) arranged on the intermediate plate (5) is set as P2 from a plan view, a layout center of gravity of the second elastic member (12) is set as Q1 from the plan view, and a distance from the center of gravity P2 to a center of gravity of the compressor located closest to the center of gravity P2 is set as r2 from the plan view, The layout center of gravity Q1 is located within an area centered on the center of gravity P2 and having the distance r2 as a radius.

12. The refrigeration cycle apparatus according to claim 11, wherein: The center of gravity P2 and the layout center of gravity Q1 substantially coincide with each other from a plan view.

13. The refrigeration cycle apparatus according to claim 9, wherein: A fourth elastic member (14) is arranged between the intermediate plate (5) and the bottom member (3) at a position coinciding with the center of gravity P1 from a plan view.

14. The refrigeration cycle apparatus according to claim 11, wherein: A fourth elastic member (14) is arranged between the intermediate plate (5) and the bottom member (3) at a position coinciding with the center of gravity P2 from a plan view.

15. The refrigeration cycle apparatus according to any one of claims 1 to 3, wherein: The refrigeration cycle apparatus includes a control portion (100) that controls operations of the plurality of compressors, The control portion (100) controls rotations of the plurality of compressors such that centrifugal forces generated by the plurality of compressors cancel each other out.

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