Refrigeration cycle device

Abstract

This refrigeration cycle device comprises: refrigeration cycle components; a base member in which the refrigeration cycle components are arranged; and a housing that accommodates the base member. The refrigeration cycle components include: a compressor that draws in a refrigerant, compresses the indrawn refrigerant, and then discharges the same; and a water heat exchanger that has a water flow path and a refrigerant flow path, and that conducts heat exchange between water flowing through the water flow path and the refrigerant flowing through the refrigerant flow path. The compressor is firmly fixed to the base member by means of a fixing member. The base member is fixed to the housing with an elastic body interposed between the housing and the base member.

Description

Refrigeration cycle equipment

[0001] An embodiment of the present invention relates to a refrigeration cycle device.

[0002] A refrigeration cycle device is a device equipped with various components (refrigeration cycle components) that constitute a refrigeration cycle. Examples of refrigeration cycle devices include air conditioners, refrigerators, and heat pump water heaters that generate cold or hot water and use the generated cold or hot water for heating, cooling, refrigeration, hot water supply, etc.

[0003] These refrigeration cycle devices are configured so that multiple modules can be connected depending on the required capacity. Each module houses refrigeration cycle components such as a compressor and various electrical components that control the refrigeration cycle components within a housing. The compressor, along with other refrigeration cycle components, is mounted on a predetermined member (hereinafter referred to as a base) provided on the housing of the module, for example, a frame. Pipes for discharging and suctioning refrigerant are connected to the compressor.

[0004] When the compressor starts operating upon starting the refrigeration cycle system, the compressor vibrates, and this vibration propagates to the connected piping. Depending on the vibration intensity, the vibration stress acting on the connection points between the compressor and the piping itself may become large. For this reason, various measures have been taken to suppress the vibration of the compressor and the piping.

[0005] For example, by fixing the compressor to the base via an elastic body (a shock absorber), it is possible to suppress the transmission of vibration from the compressor to the base. However, the compressor has characteristics such as being fixed to the base only at its legs, and the vibration changes depending on the operating frequency. Therefore, the elastic body may not be able to completely absorb the vibration of the compressor.

[0006] It is also possible to disperse vibration stress by, for example, changing the length or bending shape of the piping. However, such measures increase the space occupied by the piping, increase the number and length of piping, and require additional piping fixing members. In addition, for example, at the installation site of a refrigeration cycle device, a vibration-isolating stand or the like may be separately installed to prevent vibrations propagating from the compressor to the module housing from propagating to the installation surface or building. In this case, additional costs for the vibration-isolating stand or the like are incurred.

[0007] Patent No. 6677267

[0008] The present invention has been made in light of this, and its object is to provide a refrigeration cycle device that can flexibly absorb vibrations in accordance with the characteristics of the compressor, such as its operating frequency.

[0009] According to an embodiment, a refrigeration cycle device includes refrigeration cycle components, a base member on which the refrigeration cycle components are arranged, and a housing that houses the base member. The refrigeration cycle components include a compressor that draws in, compresses, and discharges a refrigerant, and a water heat exchanger that has a water flow path and a refrigerant flow path and performs heat exchange between water flowing through the water flow path and the refrigerant flowing through the refrigerant flow path. The compressor is firmly fixed to the base member with a fixing member. The base member is fixed to the housing with an elastic body interposed between the compressor and the base member.

[0010] 1 is a plan view schematically showing the configuration of a refrigeration cycle device according to a first embodiment; FIG. 2 is a front view schematically showing the configuration of the refrigeration cycle device according to the first embodiment from the direction of arrow A12 in FIG. 1; FIG. 3 is a circuit diagram schematically showing the refrigeration cycle of the refrigeration cycle device according to the first embodiment; FIG. 4 is a schematic view schematically showing the configuration of a refrigeration cycle unit of the refrigeration cycle device according to the first embodiment; FIG. 5 is a schematic view schematically showing the configuration of a refrigeration cycle unit according to the first embodiment from the direction of arrow A45 in FIG. 6; FIG. 7 is a schematic view schematically showing a configuration in which a spacer between a leg portion of a fixing member and a base member is omitted in the refrigeration cycle unit of the refrigeration cycle device according to the first embodiment; FIG. 8 is a schematic view schematically showing the configuration of a refrigeration cycle unit according to a second embodiment from the direction of the arrow at a location equivalent to the location indicated by arrow A45 in FIG. 4; and FIG. 9 is a schematic view schematically showing the configuration of a refrigeration cycle unit according to a third embodiment from the direction of the arrow at a location equivalent to the location indicated by arrow A45 in FIG.

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings. (First Embodiment) FIG. 1 is a plan view schematically illustrating the configuration of a refrigeration cycle apparatus 1 according to this embodiment. FIG. 2 is a front view schematically illustrating the configuration of the refrigeration cycle apparatus 1 according to this embodiment, as viewed from the direction of arrow A12 in FIG. 1. In the following description, a first direction X, a second direction Y, and a third direction Z are defined as shown in FIGS. 1 and 2. These directions X, Y, and Z are perpendicular to one another. As an example, the first direction X is the width direction, the second direction Y is the depth direction, and the third direction Z is the height direction (vertical direction). However, these directions do not necessarily have to coincide with the directions in the state in which the refrigeration cycle apparatus 1 is actually installed.

[0012] 1 and 2 show an example of the configuration of an air-cooled heat pump chilling unit capable of operating in a cooling mode and a heating mode as an example of a refrigeration cycle apparatus 1. As shown in FIG. 1 , the refrigeration cycle apparatus 1 is configured by connecting multiple refrigeration cycle modules (hereinafter simply referred to as modules) 11 and 12. In the illustrated example, a first module 11 and a second module 12 are connected in a second direction Y. That is, the second direction Y corresponds to the connection direction of the two modules 11 and 12. The number of modules constituting the refrigeration cycle apparatus 1 is not particularly limited and may be one (a single module) or three or more. The first module 11 and the second module 12 have the same basic configuration. Therefore, in the following description, the same reference numerals will be used for equivalent components in each of the modules 11 and 12.

[0013] The modules 11 and 12 each include an air heat exchange chamber 101 and a machine chamber 102. In the third direction Z, which is the height direction, the air heat exchange chamber 101 is disposed on the upper side and the machine chamber 102 is disposed on the lower side. The air heat exchange chamber 101 includes two sets of air heat exchange sections 22 as main elements. Each of the air heat exchange sections 22 includes a pair of air heat exchangers 29 a and 29 b and a fan 30.

[0014] 1 and 2, the air heat exchangers 29a, 29b are arranged opposite each other at a distance in a first direction X, which is the width direction of the air heat exchange chamber 101, and are inclined so as to move away from each other upward in a third direction Z, which is the height direction.

[0015] Furthermore, both end portions of the air heat exchangers 29 a, 29 b in the second direction Y are bent along the first direction X so as to face each other. The gap between the both end portions of the air heat exchangers 29 a, 29 b is blocked by a pair of shielding plates 151, 151. The cylindrical space surrounded by the air heat exchangers 29 a, 29 b and the shielding plates 151, 151 defines an exhaust passage extending in the vertical direction.

[0016] The fan 30 includes, for example, a fan motor that rotates an impeller and a fan cover that surrounds the impeller. The fan motor is supported on a fan base that straddles the upper ends of the pair of air heat exchangers 29 a, 29 b. The fan cover has a cylindrical exhaust port that faces the impeller.

[0017] When the fan 30 is driven, the air around the refrigeration cycle apparatus 1 passes through the air heat exchangers 29 a and 29 b and is drawn into the exhaust passage. The air drawn into the exhaust passage is sucked up toward the exhaust port and discharged from the exhaust port toward above the air heat exchangers 29 a and 29 b.

[0018] The machine room 102 includes, as its main elements, a housing 2, a first refrigeration cycle unit 3, a second refrigeration cycle unit 4, a water circuit 5, and an electrical unit 6. Here, Fig. 1 shows only the frame 7 of the housing 2, with panels (not shown) covering the front, back, right side, and left side of the housing 2 removed. The front and back are surfaces that can be seen from the front and back in the second direction Y, respectively, and the right side and left side are surfaces that can be seen from both sides in the first direction X, respectively. The panels shield the interior of the machine room 102 from the outside.

[0019] The housing 2 is installed on a horizontal installation surface G, such as the roof of a building. The housing 2 is formed in the shape of an elongated hollow box whose depth dimension (dimension along the second direction Y) is greater than its width dimension (dimension along the first direction X).

[0020] The housing 2 includes a frame 7. The frame 7 is composed of a lower frame 71, an upper frame 72, and multiple vertical bars 73. The lower frame 71 and the upper frame 72 are shaped like a long, narrow rectangle extending in the depth direction of the housing 2. The length of the lower frame 71 along the depth direction of the housing 2 is approximately the same as the length of the upper frame 72 along the depth direction of the housing 2. Furthermore, the length of the upper frame 72 along the width direction of the housing 2 is shorter than the length of the lower frame 71 along the width direction of the housing 2.

[0021] 1, the vertical bars 73 are arranged at both ends and approximately the middle in the depth direction of the housing 2. The vertical bars 73 facing each other in the width direction of the housing 2 are inclined so as to approach each other as they move from the lower frame 71 toward the upper frame 72.

[0022] Therefore, as shown in Figures 1 and 2, when the housing 2 is viewed from the front and back in the second direction Y, the frame 7 is formed in a tapered shape such that the dimension along the width direction of the housing 2 gradually narrows from the lower frame 71 to the upper frame 72.

[0023] The lower frame 71 has a bottom plate 74. The bottom plate 74, together with a plurality of panels (not shown) that cover the areas surrounded by the lower frame 71, the upper frame 72, and the plurality of vertical bars 73, defines a machine room 102 inside the housing 2. The bottom plate 74 forms the bottom of the machine room 102. The machine room 102 extends over the entire length of the housing 2 in the depth direction.

[0024] The first refrigeration cycle unit 3 constitutes a refrigeration cycle (refrigerant circuit) corresponding to one of the two sets of air heat exchange sections 22, 22 in the air heat exchange chamber 101. On the other hand, the second refrigeration cycle unit 4 constitutes a refrigeration cycle (refrigerant circuit) corresponding to the other of the two sets of air heat exchange sections 22, 22. The refrigeration cycles constituted by these refrigeration cycle units 3, 4 are independent of each other.

[0025] FIG. 3 is a circuit diagram schematically illustrating the refrigeration cycle of the refrigeration cycle apparatus 1. As shown in FIG. 3, the first refrigeration cycle unit 3 of the first module 11 includes a first refrigerant circuit RA. Meanwhile, the second refrigeration cycle unit 4 of the first module 11 includes a second refrigerant circuit RB. As described above, in the refrigeration cycle apparatus 1 according to this embodiment, the first module 11 is connected to the second module 12. Like the first module 11, the first refrigeration cycle unit 3 of the second module 12 includes a third refrigerant circuit RC. Meanwhile, the second refrigeration cycle unit 4 of the second module 12 includes a fourth refrigerant circuit RD. That is, the refrigeration cycle apparatus 1 is configured such that the first module 11 and the second module 12 are connected to each other and include four mutually independent refrigerant circuits RA, RB, RC, and RD.

[0026] The first to fourth refrigerant circuits RA, RB, RC, and RD are independent from one another, but share a common basic circuit configuration. Therefore, the following description will focus on the first refrigerant circuit RA provided in the first refrigeration cycle unit 3 in the machine room 102 of the first module 11, and the second to fourth refrigerant circuits RB, RC, and RD will be denoted by the same reference numerals in the drawings and will not be described again.

[0027] 3, the first refrigerant circuit RA includes, as its main elements, a variable capacity hermetic compressor (hereinafter simply referred to as the compressor) 20, a four-way valve 21, an air heat exchanger 22, a pair of expansion valves 23a, 23b, a receiver 24, a water heat exchanger 25, an accumulator 26, and a suction cup 20a. These elements are examples of refrigeration cycle components that make up the refrigeration cycle, and are connected via a circulation circuit 27 through which the refrigerant circulates.

[0028] Specifically, the discharge port of the compressor 20 is connected to a first port 21a of the four-way valve 21. A second port 21b of the four-way valve 21 is connected in parallel to the inlets of a pair of air heat exchangers 29a, 29b of the air heat exchange section 22. The outlets of the air heat exchangers 29a, 29b are connected to a third port 21c of the four-way valve 21 via expansion valves 23a, 23b, a receiver 24, and a water heat exchanger 25. A fourth port 21d of the four-way valve 21 is connected to the suction side of the compressor 20 via an accumulator 26 and a suction cup 20a.

[0029] 3 , the water heat exchanger 25 includes a first refrigerant flow path 25a, a second refrigerant flow path 25b, and a water flow path 25c. The first refrigerant flow path 25a of the water heat exchanger 25 is connected to the receiver 24 of the refrigerant circuit (first refrigerant circuit RA) of the first refrigeration cycle unit 3 of the first module 11 and the third port 21c of the four-way valve 21. On the other hand, the second refrigerant flow path 25b of the water heat exchanger 25 is connected to the receiver 24 of the refrigerant circuit (second refrigerant circuit RB) of the second refrigeration cycle unit 4 of the first module 11 and the third port 21c of the four-way valve 21. In this way, in the first module 11, the first refrigerant circuit RA of the first refrigeration cycle unit 3 and the second refrigerant circuit RB of the second refrigeration cycle unit 4 share one water heat exchanger 25.

[0030] Similarly, in the second module 12, the refrigerant circuit (third refrigerant circuit RC) of the first refrigeration cycle unit 3 and the refrigerant circuit (fourth refrigerant circuit RD) of the second refrigeration cycle unit 4 share one water heat exchanger 25. That is, in the examples shown in Figures 1 and 3, the refrigeration cycle apparatus 1 is equipped with two water heat exchangers 25.

[0031] 1 and 3 , various elements of the first module 11 and the second module 12, excluding the four air heat exchange units 22, are housed in a machine room 102. In the first module 11, the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4, in other words, the first refrigerant circuit RA and the second refrigerant circuit RB, are disposed in the rear half of the depth direction of the machine room 102 when, for example, the housing 2 is viewed in plan from above in the vertical direction (third direction Z). In contrast, in the first module 11, the electrical unit 6 is disposed in the front half of the depth direction of the machine room 102 when, for example, the housing 2 is viewed in plan from above in the vertical direction (third direction Z).

[0032] Similarly, in the second module 12, the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4, in other words the third refrigerant circuit RC and the fourth refrigerant circuit RD, are disposed in the rear half of the depth direction of the machine room 102 when the housing 2 is viewed in plan from above in the vertical direction (third direction Z). In contrast, in the second module 12, the electrical unit 6 is disposed in the front half of the depth direction of the machine room 102 when the housing 2 is viewed in plan from above in the vertical direction (third direction Z).

[0033] In this embodiment, the refrigeration cycle apparatus 1 is configured by connecting a first module 11 and a second module 12. Therefore, in the depth direction of the refrigeration cycle apparatus 1, that is, in the second direction Y which is the connecting direction of the modules 11 and 12, the electrical unit 6 of the second module 12 is sandwiched between the refrigeration cycle units 3 and 4 of the first module 11 and the refrigeration cycle units 3 and 4 of the second module 12. Specifically, the electrical unit 6 of the first module 11 is sandwiched between the water heat exchanger 25 constituting the refrigerant circuits RA and RB of the first module 11 and the water heat exchanger 25 constituting the refrigerant circuits RC and RD of the second module 12.

[0034] 1 to 3 , the water heat exchangers 25 of the first module 11 and the second module 12 have a square box shape and stand upright in the height direction of the machine room 102 (third direction Z) from a bottom plate 74 that corresponds to the bottom of the machine room 102. These water heat exchangers 25 have a water inlet 28 a and a water outlet 28 b. In the illustrated example, the water inlet 28 a and the water outlet 28 b are located on the left side of the water heat exchanger 25 when the housing 2 is viewed from the front (forward in the second direction Y, to the right in FIG. 1 ).

[0035] The water inlet 28a is connected to the upstream end of the water flow path 25c at the upper end of the left side of the water heat exchanger 25. The water outlet 28b is connected to the downstream end of the water flow path 25c at the lower end of the left side of the water heat exchanger 25. Therefore, the water that flows into the water flow path 25c from the water inlet 28a flows downward in the vertical direction (third direction Z) through the water flow path 25c.

[0036] 1 to 3 , the water circuit 5 is housed in the machine room 102 together with the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4. The water circuit 5 includes, as main elements, a pump device (for example, a variable capacity centrifugal pump) 45 and water piping 46. In this embodiment, as an example, the water piping 46 is made up of first to fourth water piping 46a, 46b, 46c, and 46d.

[0037] As shown in FIG. 3 , the first water pipe 46a of the water circuit 5 is connected to the suction port 51 of the pump device 45. A strainer 56 is connected to the rear end of the first water pipe 46a. The rear end of the first water pipe 46a and the strainer 56 protrude from the refrigeration cycle apparatus 1, specifically, from the rear end of the machine room 102 of the first module 11 in the depth direction (second direction Y). The strainer 56 is connected to a water outlet on the utilization equipment side, such as an air conditioner, via accessories such as various valves and flexible joints and on-site piping laid on the installation surface G. That is, water (heat medium) returned from the utilization equipment flows through the first water pipe 46a.

[0038] The second water pipe 46b connects the discharge port 52 of the pump device 45 and the water inlet 28a of the water heat exchanger 25 corresponding to the first module 11. The second water pipe 46b is laid horizontally in the depth direction of the machine room 102.

[0039] The third water piping 46c connects in series between the water outlet 28b of the water heat exchanger 25 corresponding to the first module 11 and the water inlet 28a of the water heat exchanger 25 corresponding to the second module 12. In other words, the third water piping 46c connects in series the water flow path 25c of one water heat exchanger 25 shared by the first refrigerant circuit RA and the second refrigerant circuit RB of the first module 11 and the water flow path 25c of another water heat exchanger 25 shared by the third refrigerant circuit RC and the fourth refrigerant circuit RD of the second module 12.

[0040] The fourth water pipe 46d is connected to the water outlet 28b of the water heat exchanger 25 corresponding to the second module 12. A discharge pipe 58 having a check valve 57 is connected to the rear end of the fourth water pipe 46d. The rear end of the discharge pipe 58 protrudes from the rear end of the refrigeration cycle apparatus 1, specifically, the machine room 102 of the first module 11, in the depth direction (second direction Y). Furthermore, the check valve 57 is connected to a water inlet on the utilization equipment side, such as an air conditioner, via accessories such as various valves and flexible joints and other on-site piping laid on the installation surface G. That is, water (heat medium) supplied to the utilization equipment flows through the fourth water pipe 46d.

[0041] As a result, water, which is a heat medium, circulates between the refrigeration cycle apparatus 1 and a utilization device such as an air conditioner. A specific operation of the refrigeration cycle apparatus 1 at this time will be described.

[0042] When the refrigeration cycle apparatus 1 starts operating in the cooling mode, the four-way valves 21 of the refrigerant circuits RA, RB of the first module 11 and the refrigerant circuits RC, RD of the second module 12 are switched so that the first port 21a is connected to the second port 21b and the third port 21c is connected to the fourth port 21d, as shown by solid lines in Figure 3.

[0043] Furthermore, high-temperature, high-pressure gas-phase refrigerant is discharged from the compressors 20 of the first to fourth refrigerant circuits RA, RB, RC, and RD to the circulation circuit 27. The high-temperature, high-pressure gas-phase refrigerant discharged from the compressors 20 is guided to the air heat exchangers 29a and 29b via the four-way valve 21.

[0044] The gas-phase refrigerant guided to the air heat exchangers 29a, 29b condenses through heat exchange with the air passing through the air heat exchangers 29a, 29b, and changes into high-pressure liquid-phase refrigerant. The high-pressure liquid-phase refrigerant is reduced in pressure as it passes through the expansion valves 23a, 23b, and changes into intermediate-pressure gas-liquid two-phase refrigerant. The gas-liquid two-phase refrigerant is guided to the water heat exchanger 25 via the receiver 24.

[0045] In this embodiment, the first refrigerant circuit RA and the second refrigerant circuit RB share one water heat exchanger 25, and the third refrigerant circuit RC and the fourth refrigerant circuit RD share another water heat exchanger 25. Therefore, in the first refrigerant circuit RA and the second refrigerant circuit RB, intermediate-pressure gas-liquid two-phase refrigerant is guided to the first refrigerant flow path 25a and the second refrigerant flow path 25b of the water heat exchanger 25, respectively, and exchanges heat with water flowing through the water flow path 25c.

[0046] As a result, the gas-liquid two-phase refrigerant flowing through the first refrigerant flow path 25a and the second refrigerant flow path 25b evaporates and absorbs heat from the water in the water flow path 25c, changing into a low-temperature, low-pressure gas-liquid two-phase refrigerant due to the latent heat of evaporation. The water in the water flow path 25c becomes cold water by absorbing the latent heat.

[0047] The water flow path 25c of the water heat exchanger 25 shared by the first refrigerant circuit RA and the second refrigerant circuit RB is connected in series to the water flow path 25c of another water heat exchanger 25 shared by the third refrigerant circuit RC and the fourth refrigerant circuit RD via a third water pipe 46c.

[0048] Therefore, the water cooled in the water heat exchanger 25 shared by the first refrigerant circuit RA and the second refrigerant circuit RB passes through the water flow path 25c of another water heat exchanger 25 shared by the third refrigerant circuit RC and the fourth refrigerant circuit RD, and is cooled again by heat exchange with the gas-liquid two-phase refrigerant flowing through the first refrigerant flow path 25a and the second refrigerant flow path 25b of that water heat exchanger 25. The water cooled in two stages is supplied to the utilization equipment side from the fourth water pipe 46d via the on-site pipe.

[0049] The low-temperature, low-pressure two-phase gas-liquid refrigerant that has passed through each water heat exchanger 25 is guided via the four-way valve 21 to the accumulator 26, where it is separated into a liquid phase refrigerant and a gas phase refrigerant. The gas phase refrigerant separated from the liquid phase refrigerant is further separated into gas and liquid by the suction cup 20a and is sucked into the compressor 20, and is discharged from the compressor 20 into the circulation circuit 27 as a high-temperature, high-pressure gas phase refrigerant again.

[0050] On the other hand, when the refrigeration cycle device 1 starts operating in the heating mode, the four-way valves 21 of the first to fourth refrigerant circuits RA, RB, RC, and RD are switched so that the first port 21a is connected to the third port 21c and the second port 21b is connected to the fourth port 21d, as shown by the dashed lines in Figure 3.

[0051] In the heating mode, high-temperature, high-pressure gas-phase refrigerant compressed by the compressor 20 is guided to the water heat exchanger 25 via the four-way valve 21. Even in the heating mode, the water flow path 25c of the water heat exchanger 25 shared by the first refrigerant circuit RA and the second refrigerant circuit RB is connected in series with the water flow paths 25c of the other water heat exchangers 25 shared by the third refrigerant circuit RC and the fourth refrigerant circuit RD, so that the water flowing through the water flow path 25c is heated in two stages by heat exchange with the gas-phase refrigerant flowing through the first refrigerant flow path 25a and the second refrigerant flow path 25b. The water heated by receiving heat from the gas-phase refrigerant is supplied to the utilization equipment from the fourth water pipe 46d via on-site piping.

[0052] The high-pressure liquid-phase refrigerant that has passed through the water heat exchanger 25 changes into an intermediate-pressure gas-liquid two-phase refrigerant while passing through the receiver 24 and the expansion valves 23a, 23b, and is then guided to the air heat exchangers 29a, 29b. The gas-liquid two-phase refrigerant guided to the air heat exchangers 29a, 29b evaporates due to heat exchange with the air passing through the air heat exchangers 29a, 29b, and changes into a low-temperature, low-pressure gas-liquid two-phase refrigerant.

[0053] The low-temperature, low-pressure gas-liquid two-phase refrigerant that has passed through the air heat exchangers 29a, 29b is guided to the accumulator 26 via the four-way valve 21, where it is separated into liquid-phase refrigerant and gas-phase refrigerant. The gas-phase refrigerant separated from the liquid-phase refrigerant is sucked into the compressor 20, and is discharged from the compressor 20 into the circulation circuit 27 as high-temperature, high-pressure gas-phase refrigerant again.

[0054] Next, the configuration of the refrigeration cycle units 3, 4 of the first module 11 and the second module 12 according to this embodiment will be further described. Figures 4 and 5 schematically show the configuration of these refrigeration cycle units 3, 4. Figure 4 is a schematic diagram showing the configuration of these refrigeration cycle units 3, 4. Specifically, it shows the configuration of the refrigeration cycle units 3, 4 as viewed from the right side facing the front of the housing 2 (forward in the second direction Y, rightward in Figure 1). Figure 5 is a schematic diagram showing the configuration of the refrigeration cycle units 3, 4 as viewed from the direction of arrow A45 in Figure 4.

[0055] 4 and 5 , the refrigeration cycle components constituting the refrigeration cycle units 3 and 4 are disposed on a base member 81. The base member 81 is a plate-shaped member made of a metal such as iron or aluminum, and has a rigidity sufficient to prevent deformation and absorb vibrations from the compressor 20. The refrigeration cycle components include the compressor 20 and the water heat exchanger 25, and are various components constituting the refrigeration cycle in the refrigeration cycle units 3 and 4. In this embodiment, the refrigeration cycle components include, in addition to the compressor 20 and the water heat exchanger 25, the receiver 24, the accumulator 26, the suction cup 20a, the four-way valve 21, and the pair of expansion valves 23a and 23b (see FIG. 3 ), as well as piping connected to each of these elements.

[0056] The compressor 20 is rigidly (rigidly) fixed to the base member 81 by a fixing member 82. Here, "rigidly fixed" refers to a fixing manner in which the fixing member 82 does not deform and vibration of the compressor 20 is suppressed. The fixing member 82 is made of a metal, such as iron or aluminum, and has a rigidity sufficient to prevent deformation and absorb vibration of the compressor 20. In other words, the fixing member 82 transmits vibration of the compressor 20 to the base member 81 without deforming due to the vibration. It is also possible to suppress vibration of the compressor 20 by fixing the compressor 20 to the base member 81 by, for example, adhesive bonding or welding. However, such fixing methods, such as adhesive bonding or welding, make it impossible to remove the compressor 20 from the base member 81 during inspection, maintenance, replacement, or other work, which may impair workability. Therefore, in this embodiment, "rigidly fixed" has a secondary requirement of being removable.

[0057] In the illustrated example, the fixing member 82 includes a tray-shaped receiving portion 82a that contacts and supports the lower portion (bottom) 20b of the compressor 20 in the third direction Z. The receiving portion 82a is, for example, a concave recess (recessed portion of the fixing member 82) along the bottom 20b of the compressor 20. The bottom 20b is fitted into the recess and fixed by welding or the like, thereby becoming one with the compressor 20. The receiving portion 82a is provided with four legs 82b that extend radially from the center of the bottom 20b, for example, from the rotation axis of a rotation mechanism included in the compressor 20. These legs 82b are arranged at equal intervals relative to the center of the bottom 20b. The legs 82b fasten the entire fixing member 82 to the base member 81. The legs 82b are formed with holes (through holes) 82d through which fasteners such as screws 82c can be passed.

[0058] A spacer 82e is interposed between the leg 82b and the base member 81. The spacer 82e is a member for raising the fixing point of the leg 82b on the base member 81 and bringing the leg 82b into close contact with the fixing point. The material of the spacer 82e is not particularly limited, but in this embodiment, it is made of metal as an example. A through hole is formed in the spacer 82e, and a through hole 82d is formed integrally with the hole in the leg 82b corresponding to the spacer 82e.

[0059] The receiving portion 82a is fastened to the base member 81 by passing a screw 82c through the through-hole 82d of the leg portion 82b and the spacer 82e and fastening it to the base member 81. As a result, the compressor 20, whose bottom portion 20b is fitted into the recess of the receiving portion 82a, is firmly fixed to the base member 81. Note that the number of legs 82b of the receiving portion 82a is not limited to four, and may be three or less or five or more as long as the compressor 20 can be firmly fixed to the base member 81. Furthermore, the fastener is not limited to the screw 82c, and may be a bolt, nut, screw, or the like.

[0060] As shown in Figures 4 and 5, in this embodiment, the refrigeration cycle components of the two refrigeration cycle units 3 and 4 are firmly fixed to a single base member 81 by fixing members 82 each having a receiving portion 82a that supports each of the compressors 20. In the base member 81, the receivers 24, accumulators 26, and suction cups 20a, which are refrigeration cycle components other than the compressors 20 corresponding to each of the refrigeration cycle units 3 and 4, are arranged near the two compressors 20. As described above, in each of the modules 11 and 12, the first refrigeration cycle unit 3 and the second refrigeration cycle unit 4 share a single water heat exchanger 25. Therefore, the single water heat exchanger 25 shared by these two refrigeration cycle units 3 and 4 is arranged on the base member 81. The method of fixing these refrigeration cycle components other than the compressors 20 to the base member 81 is not particularly limited, and any method can be used.

[0061] Here, it is preferable that the total weight of the refrigeration cycle components other than the compressors 20 fixed on the base member 81 be equal to or greater than the total weight of the two compressors 20. The total weight of each compressor 20 includes, for example, the weight of the compressor 20 itself, as well as the weight of the fixing member 82 integral with the compressor 20 and fasteners such as screws 82c. In other words, it is preferable that the weight of the base member 81 to which the compressors 20 are firmly fixed without vibration-isolating material be 0.8 times or more and less than 1.5 times the total weight of the compressors 20. Therefore, by setting the total weight of the refrigeration cycle components other than the compressors 20, including the water heat exchanger 25, the receiver 24, and the accumulator 26, to be approximately 0.8 to 1.5 times the total weight of the two compressors 20, vibration of the entire base member 81 can be suppressed.

[0062] Furthermore, the total weight of the water heat exchanger 25, which is the heaviest component of the refrigeration cycle, is set to approximately 0.5 to 1.3 times the total weight of the compressor 20. The water heat exchanger 25 is preferably disposed on the base member 81 at a diagonal position to the compressor 20. This makes it possible to suppress vibration while maintaining the weight balance on the base member 81.

[0063] In the example shown in Fig. 4, spacers 82e are interposed between the legs 82b of the fixing member 82 and the base member 81 to firmly fix the compressor 20 to the base member 81. However, as in the example shown in Fig. 6, the legs 82b of the fixing member 82 may be directly fastened to the base member 81 without the spacers 82e, thereby firmly fixing the compressor 20 to the base member 81. Alternatively, the spacers 82e may be interposed only between some of the legs 82b and the base member 81.

[0064] The two compressors 20, which are vibration sources in the refrigeration cycle components, are arranged close to each other on the base member 81. That is, the two compressors 20, which are vibration sources relative to the base member 81, are arranged concentratedly at the corners of the base member 81 (the lower left corner in the example shown in FIG. 5 ).

[0065] The base member 81 on which these refrigeration cycle components are arranged is housed in the housing 2. As in this embodiment, by firmly fixing the compressor 20 to the base member 81 with the fixing member 82, it is possible to suppress the vibration intensity during operation even when the compressor 20 is operating. However, if the vibration cannot be completely suppressed, there is a possibility that the base member 81 will vibrate together with the compressor 20 depending on the remaining intensity of the vibration.

[0066] Taking this into consideration, the base member 81 is fixed to the housing 2 with an elastic body 83 interposed between the base member 81 and the housing 2. The configuration of the elastic body 83 is not particularly limited as long as it can absorb vibrations generated by the compressor 20. The elastic body 83 may be made of a viscoelastic body such as rubber or synthetic resin, or a spring, for example.

[0067] 4 and 5 , in this embodiment, the base member 81 is fixed to the lower frame 71 of the frame 7 that constitutes the housing 2. In other words, in this embodiment, the frame 7 defines the outer periphery of the space that houses the base member 81. There are no particular limitations on the method for fixing the base member 81 to the lower frame 71, and any method can be applied. However, the method must not interfere with the absorption of vibrations generated by the compressor 20 by the elastic body 83. In other words, if the elastic body 83 is omitted, any fixing method that does not substantially absorb vibrations generated by the compressor 20 will suffice.

[0068] The lower frame 71 has an outer frame 71a, first beams 71b, and second beams 71c. The outer frame 71a has a generally rectangular shape that is longer in the second direction Y than in the first direction X when viewed from above in the third direction Z. The first beams 71b extend in the long direction (second direction Y) inside the outer frame 71a (within the frame). The second beams 71c extend in the short direction (first direction X) inside the outer frame 71a and intersect (orthogonal to) the first beams 71b.

[0069] In the illustrated example, three first beams 71b and three second beams 71c are arranged relative to the outer frame 71a. The first beams 71b are arranged without any misalignment with the outer frame 71a in the third direction Z. In contrast, the second beams 71c are arranged so as to be in contact with the outer frame 71a and the first beams 71b above the outer frame 71a and the first beams 71b in the third direction Z. In other words, the second beams 71c are arranged with a misalignment with the outer frame 71a and the first beams 71b in the third direction Z.

[0070] However, the number and arrangement of the first beams 71b and the second beams 71c are not particularly limited. The number of these beams 71b, 71c can be any number and can be arranged depending on, for example, the position of the base member 81 in the housing 2 and the arrangement of the refrigeration cycle components, particularly the compressor 20 and the water heat exchanger 25, on the base member 81. Alternatively, for example, the second beam 71c may be arranged without any misalignment with the outer frame 71a in the third direction Z, and the first beam 71b may be arranged so as to be in contact with the outer frame 71a and the second beam 71c above them in the third direction Z. Alternatively, the first beam 71b and the second beam 71c may be arranged without any misalignment with the outer frame 71a in the third direction Z.

[0071] In this embodiment, a plurality of elastic bodies 83 are interposed between the base member 81 and the housing 2. The elastic bodies 83 are made of the same material, specifically, have the same vibration absorption performance (damping capacity). In the illustrated example, an elastic body 83 is disposed on each of the first beam 71b and the second beam 71c of the lower frame 71. Two elastic bodies 83 are disposed on the first beam 71b, and ten elastic bodies 83 are disposed on the second beam 71c.

[0072] The elastic body 83 of the second beam 71c is directly attached to the second beam 71c. In contrast, the elastic body 83 of the first beam 71b is attached to the first beam 71b via a spacer 84. As described above, the first beam 71b is disposed offset from the second beam 71c in the third direction Z. Therefore, the distance between the first beam 71b and the base member 81 in the third direction Z is greater for the first beam 71b than for the second beam 71c by the amount of the offset. Therefore, the offset in the third direction Z is compensated for by the spacer 84, and the elastic body 83 is attached to the first beam 71b. As a result, the contact surfaces 831 of the multiple (twelve in the illustrated example) elastic bodies 83 with the base member 81 are substantially flush with the contact surface 811 of the base member 81. Instead of the spacer 84 as shown in the figure, for example, a raised portion that is raised to the same extent as the spacer 84 may be provided on the second beam 71c, and the elastic body 83 may be attached to the raised portion.

[0073] 5, these elastic bodies 83 are arranged so as to surround the fixed positions of the compressors 20 on the base member 81. In the illustrated example, of the twelve elastic bodies 83 (83a, 83b), eight elastic bodies 83a are arranged so as to surround the fixed positions of two compressors 20. The other four elastic bodies 83b are arranged farther from the fixed positions of the compressors 20 than the elastic bodies 83a surrounding the two compressors 20, and in short, are arranged so as to further surround the elastic bodies 83a.

[0074] 5, the elastic bodies 83 are arranged in greater numbers near the fixing positions of the compressors 20 on the base member 81 than in other areas. In the illustrated example, of the twelve elastic bodies 83 (83a, 83b), eight elastic bodies 83a are arranged near the fixing positions of the two compressors 20. The other four elastic bodies 83b are arranged farther away from the fixing positions of the two compressors 20 than the elastic bodies 83a.

[0075] The arrangement and number of the elastic bodies 83 a, 83 b are not limited to those shown in the illustration. For example, any number of elastic bodies 83 a, 83 b can be arranged at any position as long as they are arranged so as to surround the fixed position of the compressor 20 on the base member 81 and more elastic bodies are arranged near the fixed position of the compressor 20 than in other areas.

[0076] As described above, according to this embodiment, in the refrigeration cycle apparatus 1, the compressor 20 is firmly (rigidly) fixed to the base member 81 by the fixing member 82. The base member 81 to which the compressor 20 is firmly fixed is then fixed to the frame 7 of the housing 2 with the elastic body 83 interposed between the base member 81 and the frame 7.

[0077] Therefore, vibrations generated in compressor 20 are suppressed by fixing member 82 between compressor 20 and base member 81, and the suppressed vibrations are propagated from base member 81 to frame 7. Therefore, by arranging elastic body 83 according to the characteristics of the vibrations generated in compressor 20, such as the intensity and frequency, the vibrations can be flexibly absorbed.

[0078] Because the compressor 20 is rigidly fixed to the base member 81 by the fixing member 82, vibration of the compressor 20 can be suppressed, and vibration propagation to piping connected to the compressor 20 and to piping connected to refrigeration cycle components other than the compressor 20 can also be suppressed. As a result, measures to suppress vibration stress acting on the piping connection points and the piping itself can be limited to the piping connecting the base member 81 to the outside of the base member 81. Therefore, it is not necessary to disperse vibration stress by changing the length or bending shape of the piping, as in the conventional case, and this does not increase the space occupied by the piping, increase the number or length of piping, or require additional piping fixing members. In other words, it is easier to take measures to suppress vibration stress acting on the piping connection points and the piping itself.

[0079] Furthermore, by placing and fixing heavy refrigeration cycle components other than the compressor 20, such as the water heat exchanger 25, the receiver 24, and the accumulator 26, which are relatively heavy, on the base member 81 to which the compressor 20 is fixed, the amplitude and frequency of the entire base member 81 can be reduced. In particular, by making the total weight of the other refrigeration cycle components approximately 0.8 to 1.5 times the total weight of the compressor 20, the vibration of the entire base member 81 can be suppressed. Furthermore, by disposing the water heat exchanger 25, which is a refrigeration cycle component approximately 0.5 to 1.3 times the total weight of the compressor 20, diagonally across from the compressor 20 on the base member 81, and arranging refrigeration cycle components lighter than the water heat exchanger 25 (such as the receiver 24 and the accumulator 26) in the remaining space, it is possible to suppress vibration while maintaining the weight balance of the base member 81.

[0080] In addition to being able to suppress vibrations of the compressor 20, the suppressed vibrations can also be absorbed by the elastic body 83 between the base member 81 and the frame 7 of the housing 2. That is, it is possible to minimize vibrations propagating to the frame 7. In other words, because such vibrations are absorbed within the housing 2, there is no need to separately provide a vibration-isolating stand or the like that suppresses vibrations from propagating to, for example, the installation surface G of the refrigeration cycle apparatus 1.

[0081] Furthermore, the elastic bodies 83 are arranged so as to surround the fixed position of the compressor 20 on the base member 81, and more of them are arranged near the fixed position of the compressor 20 than in other areas. Therefore, the vibrations generated by the compressor 20 can be absorbed by the elastic bodies 83 more concentratedly and effectively.

[0082] In this embodiment, the first module 11 and the second module 12 of the refrigeration cycle apparatus 1 each have two refrigeration cycle units 3 and 4. Therefore, one compressor 20 corresponding to each of the refrigeration cycle units 3 and 4, i.e., two compressors 20, are firmly fixed to the base member 81. These two compressors 20 are concentrated (closely disposed) at a predetermined location on the base member 81. In other words, the two compressors 20, which are sources of vibration, are concentrated on the base member 81. Therefore, by disposing an elastic body 83 so as to surround the fixed positions of these compressors 20 on the base member 81, it is possible to easily absorb vibrations generated by these compressors 20.

[0083] In the above-described embodiment, the number of elastic bodies 83 causes a difference in the characteristics for absorbing vibrations generated by the compressor 20 (vibration damping capacity) between the vicinity of the compressor 20 and other locations. The factor causing this difference in vibration absorbing characteristics is not limited to the number of elastic bodies 83. For example, the vibration absorbing performance of the elastic bodies may be different. An embodiment in which the vibration absorbing performance of the elastic bodies is different in this way will be described below as a second embodiment.

[0084] The basic configuration of the refrigeration cycle apparatus according to the second embodiment is the same as that of the refrigeration cycle apparatus 1 of the first embodiment shown in Figures 1 to 3. The refrigeration cycle of the refrigeration cycle apparatus according to the second embodiment is as shown in the circuit diagram of the refrigeration cycle of the refrigeration cycle apparatus 1 of the first embodiment shown in Figure 3. Therefore, the configuration of the refrigeration cycle apparatus according to the second embodiment will be described with reference to the refrigeration cycle apparatus 1 of the first embodiment shown in Figures 1 to 3, using the same reference numerals.

[0085] Second Embodiment Fig. 7 is a schematic diagram illustrating the configuration of a second embodiment of the refrigeration cycle units 3 and 4 according to the second embodiment, viewed from the direction of the arrows, at a location equivalent to the location indicated by arrow A45 in Fig. 4.

[0086] In this embodiment, a plurality of elastic bodies 85 are interposed between the base member 81 and the housing 2. The materials of these elastic bodies 85, specifically, the vibration absorption performance (damping capacity) are not the same, unlike in the first embodiment. That is, the plurality of elastic bodies 85 are arranged in the vicinity of the fixed position of the compressor 20 on the base member 81, and are made of a material with a greater damping capacity than the other areas.

[0087] In the illustrated example, nine elastic bodies 85 are disposed on all second beams 71c of the lower frame 71. As in the first embodiment, these elastic bodies 85 may be formed of a viscoelastic body such as rubber or synthetic resin, or a spring. On the other hand, in this embodiment, of the nine elastic bodies 85 (85a, 85b), four elastic bodies 85a have greater vibration absorption performance (damping capacity) than the other five elastic bodies 85b.

[0088] 7, these elastic bodies 85 are arranged so as to surround the fixed positions of the compressors 20 on the base member 81. In the illustrated example, four elastic bodies 85a are arranged so as to surround the fixed positions of two compressors 20. The other five elastic bodies 85b are arranged farther away from the fixed positions of these compressors 20 than the elastic bodies 85a surrounding the two compressors 20, and in short, are arranged so as to further surround the elastic bodies 85a.

[0089] 7, in this embodiment, a larger number of elastic bodies 85 are arranged in areas other than the vicinity of the fixed positions of the compressors 20 on the base member 81. In the illustrated example, four elastic bodies 85a are arranged in the vicinity of the fixed positions of the two compressors 20. The other five elastic bodies 85b are arranged further away from the vicinity of the fixed positions of the two compressors 20 than the elastic bodies 85a.

[0090] As described above, according to this embodiment, elastic bodies 85a having a large vibration absorption capacity (damping capacity) are arranged so as to surround the fixed position of the compressor 20 on the base member 81, and elastic bodies 85b having a smaller vibration absorption capacity (damping capacity) than the elastic bodies 85a are arranged so as to surround these elastic bodies 85a. Therefore, even if more elastic bodies 85 are not arranged near the fixed position of the compressor 20 on the base member 81 than in other areas, vibrations generated by the compressor 20 can be effectively absorbed by the elastic bodies 85.

[0091] In the first and second embodiments described above, the two compressors 20, which are vibration sources in the refrigeration cycle components, are arranged close to each other on the base member 81. That is, in the illustrated example, the two compressors 20, which are vibration sources, are arranged concentrated (close) on the base member 81. Furthermore, the water heat exchanger 25, which is a heavy object together with the compressors 20 in the refrigeration cycle components, is arranged in a corner of the base member 81 (the upper right corner in the example shown in FIG. 5 ).

[0092] These refrigeration cycle components may be arranged taking into consideration the weight balance on the base member 81. An embodiment in which the elastic bodies have different vibration absorption capabilities as described above will be described below as a third embodiment.

[0093] The basic configuration of the refrigeration cycle apparatus according to the third embodiment is the same as that of the refrigeration cycle apparatus 1 of the first embodiment shown in Figures 1 to 3. The refrigeration cycle of the refrigeration cycle apparatus according to the third embodiment is as shown in the circuit diagram of the refrigeration cycle of the refrigeration cycle apparatus 1 of the first embodiment shown in Figure 3. Therefore, the configuration of the refrigeration cycle apparatus according to the third embodiment will be described with reference to the refrigeration cycle apparatus 1 of the first embodiment shown in Figures 1 to 3, using the same reference numerals.

[0094] (Third embodiment) Fig. 8 is a schematic diagram showing the configuration of a third embodiment, from the direction of the arrow, of the refrigeration cycle units 3 and 4 according to the third embodiment, at a location equivalent to the location indicated by the arrow A45 in Fig. 4.

[0095] In this embodiment, the two compressors 20, which are vibration sources in the refrigeration cycle components, are arranged on one side (the lower side in the example shown in FIG. 8 ) in the short dimension direction (first direction X) of the base member 81. This is the same as in the first embodiment ( FIG. 5 ).

[0096] In contrast, one of the two compressors 20 is disposed at a corner in the second direction Y (the lower left corner in the example shown in FIG. 8 ) and the other is disposed at another corner in the second direction Y (the lower right corner in the example shown in FIG. 8 ) on the base member 81. That is, these compressors 20 are disposed at both corners of the base member 81 in the longitudinal direction (second direction Y).

[0097] Near these two compressors 20 arranged separately, refrigeration cycle components other than the compressors 20, such as the receiver 24, the accumulator 26, and the suction cup 20a, are arranged.

[0098] Furthermore, the water heat exchanger 25, which is a heavy component of the refrigeration cycle, is disposed on the other side (upper side in the example shown in FIG. 8 ) in the shorter direction (first direction X) of the base member 81. This is the same as in the first embodiment ( FIG. 5 ). In contrast, the water heat exchanger 25 is disposed between the two compressors 20 in the longer direction (second direction Y) of the base member 81, or in a substantially midpoint between them in the example shown in FIG. 8 .

[0099] In this embodiment, a plurality of elastic bodies 83 are interposed between the base member 81 and the housing 2. As in the first embodiment, the materials of these elastic bodies 83, specifically, the vibration absorption performance (damping capacity) is the same.

[0100] 8, these elastic bodies 83 are arranged so as to surround the fixing positions of the respective compressors 20 that are dispersedly arranged on the base member 81. In the illustrated example, of the fifteen elastic bodies 83 (83a, 83b), twelve elastic bodies 83a are arranged so as to surround the fixing positions of the two dispersed compressors 20. The other three elastic bodies 83b are arranged farther from the fixing positions of the compressors 20 than the elastic bodies 83a that surround these compressors 20, and in short, so as to further surround the elastic bodies 83a.

[0101] 8, the elastic bodies 83 are arranged in greater numbers near the fixed positions of the compressors 20 on the base member 81 than in other areas. In the illustrated example, of the fifteen elastic bodies 83 (83a, 83b), twelve elastic bodies 83a are arranged near the fixed positions of the two dispersedly arranged compressors 20. The other three elastic bodies 83b are arranged farther away from the fixed positions of these compressors 20 than the elastic bodies 83a are.

[0102] As described above, according to this embodiment, the compressor 20 and the water heat exchanger 25, which are heavy components of the refrigeration cycle, and the other refrigeration cycle components are distributed across the base member 81, which makes it possible to more evenly balance the weight of the base member 81 on which the refrigeration cycle components are arranged. Therefore, the suppressed vibration of the compressor 20 can be more appropriately absorbed by the elastic body 83 between the base member 81 and the frame 7 of the housing 2.

[0103] Note that, as in the present embodiment, two compressors 20 may be disposed dispersedly on the base member 81, and elastic bodies having different vibration absorption capabilities may be disposed therebetween as in the second embodiment. That is, in the third embodiment, as in the second embodiment, the elastic bodies may have different vibration absorption capabilities, thereby differentiating the characteristics for absorbing vibrations generated by the compressors 20 (vibration damping capacity).

[0104] Although several embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims.

[0105] DESCRIPTION OF SYMBOLS 1... Refrigeration cycle device (air-cooled heat pump chilling unit), 2... housing, 3... first refrigeration cycle unit, 4... second refrigeration cycle unit, 5... water circuit, 6... electrical unit, 7... frame, 11, 12... module, 20... hermetic compressor, 20a... suction cup, 20b... lower part (bottom), 21... four-way valve, 21a... first port, 21b... second port, 21c... third port, 21d... fourth port, 22... air heat exchange section, 23a, 23b... expansion valve, 24... receiver, 25... water heat exchanger, 25a... first refrigerant flow path, 25b... second refrigerant flow path, 25c... water flow path, 26... accumulator, 27... circulation circuit, 28a... water inlet, 28b... water outlet, 29a, 29b... air heat exchanger, 30... fan, 45... pump device position, 46...water piping, 46a...first water piping, 46b...second water piping, 46c...third water piping, 46d...fourth water piping, 56...strainer, 57...check valve, 58...discharge piping, 71...lower frame, 72...upper frame, 73...vertical beam, 74...bottom plate, 81...base member, 811...contact surface, 82...fixing member, 82a...receiving portion, 82b...leg portion, 82c...screw, 82d ...through hole, 82e...spacer, 83, 83a, 83b, 85, 85a, 85b...elastic body, 831...contact surface, 84...spacer, 101...air heat exchange chamber, 102...machine chamber, 151, 161...shield, G...installation surface, RA...first refrigerant circuit, RB...second refrigerant circuit, RC...third refrigerant circuit, RD...fourth refrigerant circuit, X...first direction, Y...second direction, Z...third direction.

Claims

1. A refrigeration cycle device comprising: a compressor that sucks in a refrigerant and compresses and discharges the sucked refrigerant; and a water heat exchanger having a water flow path and a refrigerant flow path and performing heat exchange between water flowing through the water flow path and the refrigerant flowing through the refrigerant flow path, as refrigeration cycle components; a base member on which the refrigeration cycle components are disposed; and a housing that houses the base member, wherein the compressor is firmly fixed to the base member by a fixing member, and the base member is fixed to the housing with an elastic body interposed therebetween.

2. The refrigeration cycle device according to claim 1, wherein the elastic body is disposed so as to surround a fixing position of the compressor on the base member.

3. The refrigeration cycle device according to claim 1, wherein the elastic body is disposed in the vicinity of a fixing position of the compressor on the base member, and a larger number of elastic bodies are disposed in the vicinity than in other areas, or an elastic body made of a material having a greater damping ability than in other areas is disposed.

4. The refrigeration cycle device according to claim 2 or 3, wherein the fixing member transmits the vibration to the base member without being deformed by the vibration of the compressor.

5. The refrigeration cycle device according to claim 4, wherein the housing includes a frame that defines an outer contour of a space for housing the base member, and the elastic body is disposed on the frame.

6. The refrigeration cycle device according to claim 5, wherein the total weight of the refrigeration cycle components other than the compressor disposed on the base member is 0.8 times or more and less than 1.5 times the total weight of the compressor.

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