Heat source unit and refrigeration cycle device

Abstract

To restrain a force applied to a fluid pipe from propagating to a water heat exchanger.SOLUTION: An opening part (70a) is formed in a casing (70). A compressor (30) and a water heat exchanger (15) are arranged in an internal space (S1) of the casing (70). A fluid pipe (17) is inserted into the opening part (70a) of the casing (70), and connected to the water heat exchanger (15). A supporting part (18) is arranged in the internal space (S1) of the casing (70), and supports the fluid pipe (17).SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a heat source unit and a refrigeration cycle device. [Background technology]

[0002] Patent Document 1 discloses a heat source unit (outdoor unit) in which a compressor soundproof box containing a compressor is arranged in a machine room. In the heat source unit of Patent Document 1, sound absorbing material is attached to the inner surface of the soundproof box sheet metal that forms the side and top surfaces of the compressor soundproof box. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6501908 Summary of the Invention [Problem to be solved by the invention]

[0004] It is conceivable to place a water heat exchanger in a heat source unit such as that described in Patent Document 1. However, simply connecting a fluid pipe to the water heat exchanger placed in the heat source unit may cause a force (stress) applied to the fluid pipe to be transmitted to the water heat exchanger, which may cause damage to the water heat exchanger.

[0005] An object of the present disclosure is to suppress the transmission of force applied to a fluid piping to a water heat exchanger. [Means for solving the problem]

[0006] A first aspect of the present disclosure relates to a heat source unit comprising: a casing (70) having an opening (70a) formed therein; a compressor (30) and a water heat exchanger (15) disposed in an internal space (S1) of the casing (70); a fluid piping (17) inserted through the opening (70a) of the casing (70) and connected to the water heat exchanger (15); and a support part (18) disposed in the internal space (S1) of the casing (70) and supporting the fluid piping (17).

[0007] In the first aspect, the support portion (18) supporting the fluid piping (17) can inhibit the transmission of a force (stress) applied to the fluid piping (17), thereby making it possible to suppress the transmission of the force applied to the fluid piping (17) to the water heat exchanger (15).

[0008] A second aspect of the present disclosure is a heat source unit according to the first aspect, which includes a mounting member (81) on which the water heat exchanger (15) is placed, and a vibration-proof member (82) that supports the mounting member (81), and the support part (18) is fixed to the mounting member (81).

[0009] In the second aspect, the mounting member (81) on which the water heat exchanger (15) and the support portion (18) are arranged is supported by the vibration-isolating member (82), thereby making it possible to suppress vibration of the water heat exchanger (15) and the support portion (18). In addition, since the water heat exchanger (15) and the support portion (18) can be arranged in the same vibration system, it is possible to reduce the force applied to the water heat exchanger (15) due to the difference in vibration between the water heat exchanger (15) and the support portion (18).

[0010] A third aspect of the present disclosure is a heat source unit in which, in the heat source unit of the first or second aspect, the support portion (18) supports the fluid piping (17) such that the fluid piping (17) is inserted into an opening (70a) of the casing (70) with a predetermined gap between the opening (70a) and the casing (70).

[0011] In the third aspect, contact between the fluid pipe (17) and the opening (70a) of the casing (70) can be suppressed, thereby suppressing the generation of contact noise.

[0012] A fourth aspect of the present disclosure is a heat source unit according to the third aspect, further comprising a sound-insulating member (60) that is disposed in the internal space (S1) of the casing (70) and surrounds the compressor (30) and the water heat exchanger (15), wherein the sound-insulating member (60) has an opening (60a) through which the fluid piping is inserted, and the support portion (18) supports the fluid piping (17) such that the fluid piping (17) is inserted into the opening (70a) of the casing (70) and the opening (60a) of the sound-insulating member (60) with a predetermined gap between them.

[0013] In the fourth aspect, the double sound insulation structure of the sound insulation member (60) and the casing (70) can prevent radiated sound and vibration sound from the compressor (30) and the water heat exchanger (15) from leaking to the outside. In addition, contact between the "fluid piping (17)" and the "opening (70a) of the casing (70) and the opening (60a) of the sound insulation member (60)" can be prevented, thereby preventing the generation of contact noise.

[0014] A fifth aspect of the present disclosure is a heat source unit according to the fourth aspect, further comprising an insulating member (63) having elasticity and wound around the fluid piping (17), and the support portion (18) supports the fluid piping (17) such that the fluid piping (17) around which the insulating member (63) is wound is inserted into an opening (70a) of the casing (70) and an opening (60a) of the sound insulation member (60) with a predetermined gap between them.

[0015] In the fifth aspect, by wrapping an elastic heat insulating member (63) around the fluid piping (17), even if the fluid piping (17) around which the heat insulating member (63) is wrapped comes into contact with the “opening (70a) of the casing (70) and the opening (60a) of the sound insulation member (60),” the elasticity of the heat insulating member (63) can suppress contact noise.

[0016] A sixth aspect of the present disclosure is a heat source unit according to the fourth or fifth aspect, further comprising a first sound absorbing member (61) provided between an outer surface of the sound insulation member (60) and an inner surface of the casing (70).

[0017] In the sixth aspect, the first sound absorbing member (61) can suppress deterioration of sound insulation performance due to the low-frequency resonance transmission phenomenon, and can improve the soundproofing effect.

[0018] A seventh aspect of the present disclosure is a heat source unit according to the sixth aspect, further comprising a second sound absorbing member (62) provided on an inner surface of the sound insulation member (60). The second sound absorbing member (62) absorbs radiated sound and vibration sound from the compressor (30) and the water heat exchanger (15), thereby improving the soundproofing effect.

[0019] An eighth aspect of the present disclosure is a refrigeration cycle device including the heat source unit according to any one of the first to seventh aspects. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a piping diagram illustrating the configuration of a refrigeration cycle device according to an embodiment. [Diagram 2] FIG. 2 is a front cross-sectional view illustrating the configuration of the outdoor unit. [Diagram 3] FIG. 3 is a plan cross-sectional view illustrating the configuration of the outdoor unit. [Figure 4] FIG. 4 is a plan cross-sectional view illustrating the configuration of a main part of the outdoor unit. [Diagram 5] FIG. 5 is a side cross-sectional view illustrating the configuration of a main part of the outdoor unit. [Figure 6] FIG. 6 is a rear cross-sectional view illustrating the configuration of a main part of the outdoor unit. [Figure 7] FIG. 7 is a plan cross-sectional view illustrating the configuration of a main part of an outdoor unit according to a modified example of the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, the embodiments will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof will not be repeated. In addition, the present disclosure is not limited to the embodiments shown below, and various modifications are possible within the scope of the technical idea of ​​the present disclosure. Since each drawing is intended to conceptually explain the present disclosure, dimensions, ratios, or numbers may be exaggerated or simplified as necessary for ease of understanding.

[0022] (Refrigeration cycle equipment) As shown in Fig. 1, the refrigeration cycle apparatus (1) is a hot water supply refrigeration cycle apparatus having an outdoor unit (20) as a heat source unit. The outdoor unit (20) has a refrigerant circuit (2).

[0023] [Refrigerant circuit] The refrigerant circuit (2) is filled with, for example, a flammable natural refrigerant. The flammable natural refrigerant is, for example, propane. Propane is a refrigerant having a higher specific gravity than air. The refrigerant circuit (2) performs a refrigeration cycle by circulating the refrigerant.

[0024] [Fluid circuit] The refrigeration cycle apparatus (1) has a fluid circuit (12). Water flows through the fluid circuit (12) as a heat medium. A water heat exchanger (15) and a fluid pump (16) are connected to the fluid circuit (12). The fluid pump (16) circulates the water in the fluid circuit (12). The fluid heated in the water heat exchanger (15) is supplied to a hot water tank (not shown) that is a supply destination. The water in the hot water tank returns to the fluid circuit (12) and is heated again in the water heat exchanger (15).

[0025] [Outdoor unit] The outdoor unit (20) includes a refrigerant cylinder (5), a water heat exchanger (15), an outdoor heat exchanger (21), an outdoor fan (22), an outdoor expansion valve (23), a four-way switching valve (24), an accumulator (25), and a compressor (30). The outdoor heat exchanger (21), the outdoor expansion valve (23), the four-way switching valve (24), and the compressor (30) are connected by piping (26).

[0026] The refrigerant cylinder (5) is filled with refrigerant. The refrigerant cylinder (5) is connected, for example, to a pipe branching off from a pipe (26) connecting the four-way switching valve (24) and the accumulator (25). After the outdoor unit (20) is transported to the installation site, the refrigerant cylinder (5) opens the on-off valve (6) of the refrigerant cylinder (5) to fill the refrigerant circuit (2) with refrigerant. This makes it possible to prevent flammable refrigerant from leaking from the refrigerant circuit (2) during transportation of the outdoor unit (20).

[0027] The water heat exchanger (15) is connected to the pipe (26) of the refrigerant circuit (2) and the fluid pipe (17) of the fluid circuit (12). The water heat exchanger (15) exchanges heat between "the refrigerant flowing through the pipe (26)" and "the water (fluid) flowing through the fluid pipe (17) of the fluid circuit (12)." For example, the water heat exchanger (15) is configured as a plate heat exchanger. The water heat exchanger (15) has a refrigerant flow path to which the pipe (26) of the refrigerant circuit (2) is connected and a water flow path (fluid flow path) to which the fluid pipe (17) of the fluid circuit (12) is connected, and exchanges heat between the refrigerant flowing through the refrigerant flow path and the water flowing through the water flow path. The refrigerant flow path and the water flow path are formed in a plurality of plate members in the water heat exchanger (15).

[0028] The outdoor heat exchanger (21) is, for example, a cross-fin type fin-and-tube heat exchanger. The outdoor heat exchanger (21) exchanges heat between the refrigerant flowing through the outdoor heat exchanger (21) and the air blown by the outdoor fan (22). The outdoor expansion valve (23) is, for example, an electronic expansion valve. The outdoor heat exchanger (21) is an example of a heat source side heat exchanger.

[0029] The four-way switching valve (24) has a first port (P1), a second port (P2), a third port (P3), and a fourth port (P4). The four-way switching valve (24) is switchable between a state in which the first port (P1) and the third port (P3) communicate with each other and the second port (P2) and the fourth port (P4) communicate with each other (a state shown by a solid line in FIG. 1) and a state in which the first port (P1) and the second port (P2) communicate with each other and the third port (P3) and the fourth port (P4) communicate with each other (a state shown by a dashed line in FIG. 1).

[0030] The compressor (30) compresses the refrigerant. The compressor (30) is, for example, a rotary compressor such as a scroll compressor. A four-way switching valve (24) is connected to a pipe (26) on the discharge side of the compressor (30). An accumulator (25) is connected to a pipe (26) on the suction side of the compressor (30).

[0031] [Internal structure of outdoor unit] In the following description, for the sake of convenience, arrows are used to indicate up-down, front-rear, left-right, and other directions in each drawing. Unless otherwise specified, the up-down and other directions will be described according to the directions indicated by these arrows.

[0032] As shown in Figures 2 and 3, the outdoor unit (20) has a casing (70). The casing (70) is formed in a box shape. The casing (70) is made of, for example, a metal plate. The casing (70) has an upper panel (71), a bottom panel (72), a front panel (73), a rear panel (74), a left panel (75), and a right panel (76).

[0033] A partition member (28) is disposed upright inside the casing (70). The partition member (28) is formed, for example, from a metal plate. The partition member (28) divides the inside of the casing (70) into a "machine chamber (S1) as an internal space" and a "fan chamber (S2)."

[0034] The fan chamber (S2) is a space inside the casing (70) to the left of the partition member (28) in FIG. 2. The outdoor fan (22) and the outdoor heat exchanger (21) are disposed in the fan chamber (S2). The outdoor fan (22) has a fan motor (22a).

[0035] The casing (70) is formed with an inlet (701) and an outlet (702). The inlet (701) is formed in the rear panel (74) and the left panel (75). The outlet (702) is formed in the front panel (73). When the outdoor fan (22) is rotated by the fan motor (22a), air sucked into the blower chamber (S2) through the inlet (701) exchanges heat with refrigerant flowing through the outdoor heat exchanger (21). The air after heat exchange is blown out of the outdoor unit (20) through the outlet (702). In FIG. 3, the air flow is indicated by white arrows.

[0036] The machine room (S1) is a space inside the casing (70) and located to the right of the partition member (28) in Fig. 2. The machine room (S1) accommodates a refrigerant cylinder (5), a pipe group (8), a water heat exchanger (15), an accumulator (25), a compressor (30), and a sound insulation member (60).

[0037] The compressor (30) has a support leg (31). The support leg (31) is supported by a plurality of first vibration-isolating members (41). The first vibration-isolating members (41) are supported by a first support member (51). The first support member (51) is supported by a plurality of second vibration-isolating members (42). The second vibration-isolating members (42) are supported by a second support member (52). In the example shown in FIG. 2, the second support member (52) is a bottom plate (72) of the casing (70).

[0038] The first vibration-isolating member (41) and the second vibration-isolating member (42) are made of rubber or urethane. The material and spring constant of the first vibration-isolating member (41) and the material and spring constant of the second vibration-isolating member (42) may be the same as or different from each other.

[0039] The compressor (30) is disposed on a double vibration-isolating structure including the first vibration-isolating member (41), the first support member (51), and the second vibration-isolating member (42). Therefore, even if the compressor (30) vibrates during operation of the refrigeration cycle apparatus (1), the transmission of the vibration and the generation of noise are suppressed. For example, the vibration of the compressor (30) is damped by the first vibration-isolating member (41) and the second vibration-isolating member (42) before being transmitted to the bottom plate (72).

[0040] The refrigerant cylinder (5) and the water heat exchanger (15) are supported by a first support member (51). The accumulator (25) is supported by a stay (not shown) at a position separated from the first support member (51).

[0041] The sound-insulating member (60) is formed in a box shape that is open downward. The sound-insulating member (60) is supported by a bottom plate (72) of the casing (70). The sound-insulating member (60) is made of a non-breathable material. The sound-insulating member (60) is made of, for example, a metal plate or a rubber sheet.

[0042] The sound-insulating member (60) defines (forms) an accommodation space (65) that accommodates the compressor (30) and the water heat exchanger (15). The sound-insulating member (60) covers the compressor (30) and the water heat exchanger (15). In addition to the compressor (30) and the water heat exchanger (15), the accommodation space (65) of the sound-insulating member (60) accommodates the refrigerant cylinder (5), the pipe group (8), and the accumulator (25). The sound-insulating member (60) surrounds the compressor (30), the water heat exchanger (15), the refrigerant cylinder (5), the pipe group (8), and the accumulator (25).

[0043] The piping group (8) includes a valve element (9) and a pipe (26). The valve element (9) includes an outdoor expansion valve (23), a four-way switching valve (24), and a solenoid valve (29). The piping group (8) may include an internal heat exchanger for exchanging heat between the refrigerants, a muffler, a filter, etc. The valve element (9) may include a motor-operated valve, a check valve, a three-way valve, etc.

[0044] A gap is provided between the outer surface of the sound-proofing member (60) and the inner surface of the casing (70). The sound-proofing member (60) and the casing (70) are disposed with a predetermined distance between them. The inner surface of the casing (70) includes the surface of the partition member (28) facing the machine chamber (S1).

[0045] A first sound absorbing member (61) is provided in the gap between the outer surface of the sound insulation member (60) and the inner surface of the casing (70). The first sound absorbing member (61) is made of, for example, urethane. The first sound absorbing members (61) are respectively arranged on the outer surface sides of the upper wall, front wall, rear wall, left wall, and right wall of the sound insulation member (60).

[0046] Further, a second sound absorbing member (62) is provided on the inner surface of the sound insulation member (60). The second sound absorbing member (62) is made of, for example, urethane. The second sound absorbing members (62) are respectively arranged on the inner surfaces of the upper wall, front wall, rear wall, left wall, and right wall of the sound insulation member (60).

[0047] [Main parts of the outdoor unit (20)] Next, the main parts of the outdoor unit (20) will be described with reference to Figures 4, 5, and 6. Figure 4 corresponds to an enlarged plan cross-sectional view of the main parts of the outdoor unit (20). Figure 5 corresponds to a cross-section taken along line VV in Figure 4, as viewed from the right side. Figure 6 corresponds to a cross-section taken along line VI-VI in Figure 5, as viewed from the rear side.

[0048] <Opening> As shown in Fig. 4, the casing (70) has an opening (70a). Similarly, the sound insulation member (60) has an opening (60a), the first sound absorbing member (61) has an opening (61a), and the second sound absorbing member (62) has an opening (62a). Hereinafter, these openings will be referred to as "openings (60a, 61a, 62a, 70a)."

[0049] The fluid pipe (17) is inserted through the openings (60a, 61a, 62a, 70a). The cross-sectional shape of the openings (60a, 61a, 62a, 70a) (the shape of a cross section perpendicular to the direction in which the fluid pipe (17) is inserted) corresponds to the cross-sectional shape of the fluid pipe (17). In this example, the cross-sectional shape of the fluid pipe (17) is circular, and the cross-sectional shape of the openings (60a, 61a, 62a, 70a) is a circle larger than the cross-sectional shape of the fluid pipe (17).

[0050] <Water heat exchanger> The water heat exchanger (15) is housed in the machine room (S1) together with the compressor (30). As shown in Figs. 5 and 6, in this example, the water heat exchanger (15) is placed on a first support member (51). The water heat exchanger (15) is not fixed to the first support member (51). The first support member (51) is a plate-like member, for example, a metal member. The first support member (51) is supported by a plurality of second vibration-proof members (42).

[0051] The first support member (51) is an example of a mounting member (81) on which the water heat exchanger (15) is mounted. The second vibration-isolating member (42) supporting the first support member (51) is an example of a vibration-isolating member (82) supporting the mounting member (81).

[0052] <Fluid piping> The fluid piping (17) is inserted through the openings (60a, 61a, 62a, 70a) and connected to the water heat exchanger (15). In this example, two fluid piping (17) are connected to the water heat exchanger (15). One of the two fluid piping (17) is connected to an inlet of a water flow path of the water heat exchanger (15), and the other of the two fluid piping (17) is connected to an outlet of the water flow path of the water heat exchanger (15). The inlet and outlet of the water flow path of the water heat exchanger (15) are provided on a connection surface, which is one surface of the water heat exchanger (15) (in this example, the rear surface in the installed state).

[0053] In this example, the two fluid pipes (17) extend in parallel in the front-rear direction within the machine room (S1), spaced apart from each other at a predetermined interval in the up-down and left-right directions, and are connected to an inlet and an outlet of a water flow path provided on the connection surface of the water heat exchanger (15). As shown in Fig. 6, when viewed from the rear side of the outdoor unit (20), the two fluid pipes (17) face each other at a predetermined interval in an oblique direction from the upper right to the lower left.

[0054] The diagonal direction from the upper right to the lower left is an example of a diagonal direction from one side in the left-right direction and the up-down direction to the other side in the left-right direction and the up-down direction. The front-rear direction, which is the extension direction of the fluid pipes (17), is an example of a direction along the horizontal direction. The left-right direction is an example of a direction perpendicular to the extension direction of the fluid pipes (17) and along the horizontal direction.

[0055] <Support part> A support portion (18) is disposed near the water heat exchanger (15). The support portion (18) is disposed in the machine room (S1), which is the internal space of the casing (70), and supports the fluid piping (17). In this example, the support portion (18) is fixed to the mounting member (81). The support portion (18) supports the fluid piping (17) such that the fluid piping (17) is inserted into the openings (70a, 60a, 61a, 62a) with a predetermined gap between the openings (70a, 60a, 61a, 62a).

[0056] Note that the above-mentioned "state in which the fluid pipe (17) is separated from the openings (70a, 60a, 61a, 62a) by a predetermined gap" specifically means a state in which the outer circumferential surface of the fluid pipe (17) and the inner circumferential surface of the openings (70a, 60a, 61a, 62a) face each other at a predetermined interval over the entire circumference. For example, the length of the predetermined gap (predetermined interval) is 5 mm.

[0057] The support portion (18) has a base portion (18a) and a mounting fixture (18b). The base portion (18a) is provided with a recess (18c). In this example, the support portion (18) has two mounting fixtures (18b) corresponding to the two fluid pipes (17). The base portion (18a) is provided with two recesses (18c) corresponding to the two fluid pipes (17).

[0058] The base portion (18a) is fixed to the mounting member (81). For example, the base portion (18a) is a plate-shaped member made of metal. The base portion (18a) is fixed to the mounting member (81) with screws. By releasing the screws, the base portion (18a) can be removed from the mounting member (81).

[0059] The fluid pipe (17) is fitted into the recess (18c) of the base (18a). The cross-sectional shape of the recess (18c) (the shape of a cross section perpendicular to the extension direction of the fluid pipe (17)) corresponds to the cross-sectional shape of the fluid pipe (17). As shown in Fig. 6, in this example, the cross-sectional shape of the recess (18c) is an arc shape (specifically, a semicircular arc shape) having a diameter larger than the diameter of the fluid pipe (17). Moreover, the recess (18c) is concave in a predetermined direction so that the fluid pipe (17) can be fitted in from a predetermined direction (the lower right in this example).

[0060] The mounting fixture 18b is attached to the base 18a in order to fix the fluid pipe 17 fitted in the recess 18c of the base 18a. In this example, the mounting fixture 18b has a curved portion having a cross-sectional shape corresponding to the cross-sectional shape of the fluid pipe 17 (the shape of a cross section perpendicular to the extension direction of the fluid pipe 17), and a fixing portion connected to the curved portion.

[0061] With the fluid pipe (17) sandwiched between the curved portion of the mounting fixture (18b) and the recessed portion (18c) of the base (18a), the fixing portion of the mounting fixture (18b) is screwed to the base (18a), thereby fixing and supporting the fluid pipe (17). By releasing the screws of the mounting fixture (18b), the mounting fixture (18b) can be removed from the base (18a), and the fluid pipe (17) can be removed from the recessed portion (18c) of the base (18a).

[0062] [Comparison between the embodiment and the comparative example] Next, an outdoor unit (20) not provided with a support portion (18) will be described as a "comparative example" to compare the outdoor unit (20) of the embodiment with the comparative example. For ease of explanation, the components of the comparative example will be designated by the same reference numerals as those of the outdoor unit (20) of the embodiment.

[0063] In the case of the above comparative example (the outdoor unit (20) not provided with the support portion (18)), the only portion in the outdoor unit (20) that supports the fluid piping (17) is the connection portion between the water heat exchanger (15) and the fluid piping (17) (specifically, the inlet or outlet of the water flow path included in the water heat exchanger (15)). Therefore, when installing (or removing) the water heat exchanger (15) or the fluid piping (17), a force (stress) applied to the fluid piping (17) is transmitted to the water heat exchanger (15) via the connection portion between the water heat exchanger (15) and the fluid piping (17). As a result, there is a possibility that the force will damage components in the water heat exchanger (15) (e.g., plates that form the refrigerant flow path and the water flow path).

[0064] In addition, when vibrations in the outdoor unit (20) are transmitted to the fluid piping (17), as in the above example, the force applied to the fluid piping (17) is transmitted to the water heat exchanger (15), and this force may cause damage to the water heat exchanger.

[0065] On the other hand, in the outdoor unit (20) of this embodiment, the support portion (18) that supports the fluid piping (17) prevents a force applied to the fluid piping (17) from being transmitted to the water heat exchanger (15). This makes it possible to prevent the water heat exchanger (15) from being damaged by the force transmitted from the fluid piping (17).

[0066] [Effects of the embodiment] As described above, in the refrigeration cycle apparatus (1) of the embodiment, the casing (70) has an opening (70a). The compressor (30) and the water heat exchanger (15) are disposed in the interior space (S1) of the casing (70). The fluid piping (17) is inserted through the opening (70a) of the casing (70) and connected to the water heat exchanger (15). The support (18) is disposed in the interior space (S1) of the casing (70) and supports the fluid piping (17).

[0067] In the above-described configuration, the support portion (18) that supports the fluid piping (17) can inhibit the transmission of force (stress) applied to the fluid piping (17). This can prevent the force applied to the fluid piping (17) from being transmitted to the water heat exchanger (15). As a result, damage to the water heat exchanger (15) due to the force transmitted from the fluid piping (17) can be prevented.

[0068] In the refrigeration cycle apparatus (1) of the embodiment, the outdoor unit (20) includes a mounting member (81) on which the water heat exchanger (15) is mounted, and a vibration-isolating member (82) that supports the mounting member (81). The support portion (18) is fixed to the mounting member (81).

[0069] In the above configuration, the mounting member (81) on which the water heat exchanger (15) and the support portion (18) are arranged is supported by the vibration-isolating member (82), thereby making it possible to suppress vibration of the water heat exchanger (15) and the support portion (18). In addition, since the water heat exchanger (15) and the support portion (18) can be arranged in the same vibration system, it is possible to reduce the force applied to the water heat exchanger (15) due to the difference in vibration between the water heat exchanger (15) and the support portion (18).

[0070] In addition, in the embodiment of the refrigeration cycle apparatus (1), the support portion (18) supports the fluid piping (17) so that the fluid piping (17) is inserted into the opening (70a) of the casing (70) with a predetermined gap between the opening (70a) and the casing (70).

[0071] In the above-described configuration, contact between the fluid pipe (17) and the opening (70a) of the casing (70) can be suppressed, thereby suppressing the generation of contact noise, thereby reducing the noise of the outdoor unit (20).

[0072] In the refrigeration cycle apparatus (1) of the embodiment, the outdoor unit (20) is disposed in the internal space (S1) of the casing (70) and includes a sound-insulating member (60) that surrounds the compressor (30) and the water heat exchanger (15). An opening (60a) is formed in the sound-insulating member (60). The support portion (18) supports the fluid piping (17) such that the fluid piping (17) is inserted through the opening (70a) of the casing (70) and the opening (60a) of the sound-insulating member (60) with a predetermined gap between the opening (70a) of the casing (70) and the opening (60a) of the sound-insulating member (60).

[0073] In the above-described configuration, the double sound insulation structure of the sound insulation member (60) and the casing (70) can prevent radiated sound and vibration sound from the compressor (30) and the water heat exchanger (15) from leaking to the outside.

[0074] In addition, the above-described configuration can prevent contact between the "fluid piping (17)" and the "opening (70a) of the casing (70) and the opening (60a) of the sound insulation member (60)," thereby preventing the generation of contact noise. This can reduce the noise of the outdoor unit (20).

[0075] In the refrigeration cycle apparatus (1) of the embodiment, the outdoor unit (20) includes a first sound absorbing member (61). The first sound absorbing member (61) is provided between the outer surface of the sound insulation member (60) and the inner surface of the casing (70).

[0076] In the above-described configuration, the first sound absorbing member (61) can suppress deterioration of sound insulation performance due to the low-frequency resonance transmission phenomenon, thereby improving the soundproofing effect.

[0077] Specifically, when two plates form a double structure with a hollow space between them, the two plates become two masses, and the air in the hollow space acts as a spring connecting them, causing them to vibrate, resulting in a resonance phenomenon. In this case, the transmission loss is lower than the mass law, and sound insulation performance is reduced. This phenomenon generally occurs in the low frequency range, so it is called the low frequency resonance transmission phenomenon.

[0078] In contrast, in the refrigeration cycle apparatus (1) of the embodiment, a first sound-absorbing member (61) is provided in the gap between the outer surface of the sound-insulating member (60) and the inner surface of the casing (70), thereby making it possible to suppress the occurrence of a resonance phenomenon in which the air in the gap between the sound-insulating member (60) and the casing (70) acts as a spring to vibrate.

[0079] In the refrigeration cycle apparatus (1) of the embodiment, the outdoor unit (20) includes a second sound absorbing member (62). The second sound absorbing member (62) is provided on the inner surface of the sound insulation member (60).

[0080] In the above-described configuration, the second sound absorbing member (62) absorbs radiated sound and vibration sound from the compressor (30) and the water heat exchanger (15), thereby improving the soundproofing effect.

[0081] Specifically, when the compressor (30) and the water heat exchanger (15), which are sound sources, are enclosed in a sound-proofing member (60), which is a box-shaped member, the sound is reflected by the sound-proofing member (60), causing a phenomenon known as build-up, in which the sound pressure level around the compressor (30) and the water heat exchanger (15) increases compared to when the sound-proofing member (60) is not present.

[0082] As a result, the sound pressure level outside the sound insulation member (60) is equal to the sound pressure level without the sound insulation member (60) minus the transmission loss and build-up of the sound insulation member (60). Therefore, the amount of sound reduction achieved by providing the sound insulation member (60) is smaller than the value expected based on the transmission loss.

[0083] Therefore, in the refrigeration cycle apparatus (1) of the embodiment, the second sound absorbing member (62) is provided on the inner surface of the sound insulating member (60) to attenuate the sound pressure level inside the sound insulating member (60), thereby making it possible to suppress the build-up.

[0084] In addition, in the embodiment of the refrigeration cycle apparatus (1), the support portion (18) supports the fluid piping (17) so that the fluid piping (17) is inserted into the openings (70a, 60a, 61a, 62a) with a predetermined gap between the openings (70a, 60a, 61a, 62a) and the fluid piping (17).

[0085] In the above-described configuration, contact between the fluid pipe (17) and the openings (70a, 60a, 61a, 62a) can be suppressed, thereby suppressing the generation of contact noise, thereby reducing the noise of the outdoor unit (20).

[0086] (Modification of the embodiment) 7 illustrates a main part of an outdoor unit (20) according to a modification of the embodiment. The outdoor unit (20) according to the modification of the embodiment includes a heat insulating member (63) in addition to the components of the outdoor unit (20) according to the embodiment.

[0087] The heat insulating member (63) has elasticity and is wrapped around the fluid pipe (17). For example, the heat insulating member (63) is a sheet-like member made of an insulating material such as glass wool that has elasticity, heat insulation properties, and sound absorption properties. In this example, the heat insulating member (63) covers the entire circumference of the portion of the fluid pipe (17) that is disposed within the openings (60a, 61a, 62a, 70a).

[0088] In the modified embodiment, the support portion (18) supports the fluid piping (17) around which the heat insulating member (63) is wrapped such that the fluid piping (17) is inserted into the openings (60a, 61a, 62a, 70a) with a predetermined gap between the fluid piping (17) and the openings (60a, 61a, 62a, 70a). The other configuration of the outdoor unit (20) of the embodiment is similar to the configuration of the outdoor unit (20) of the embodiment.

[0089] [Effects of the Modification of the Embodiment] The refrigeration cycle apparatus (1) according to the modified embodiment can provide the same effects as those of the refrigeration cycle apparatus (1) according to the embodiment.

[0090] In the refrigeration cycle apparatus (1) according to the modified embodiment, the outdoor unit (20) includes a heat insulating member (63). The heat insulating member (63) has elasticity and is wrapped around the fluid piping (17). The support portion (18) supports the fluid piping (17) such that the fluid piping (17) around which the heat insulating member (63) is wrapped is inserted into the opening (70a) of the casing (70) and the opening (60a) of the sound insulation member (60) with a predetermined gap between them.

[0091] In the above configuration, by wrapping the elastic heat insulating member (63) around the fluid piping (17), even if the fluid piping (17) around which the heat insulating member (63) is wrapped comes into contact with the "opening (70a) of the casing (70) and the opening (60a) of the sound insulation member (60)," contact noise can be suppressed by the elasticity of the heat insulating member (63), thereby reducing noise from the outdoor unit (20).

[0092] In addition, in the refrigeration cycle apparatus (1) of the modified embodiment, the support portion (18) supports the fluid piping (17) with the insulating member (63) wrapped around it so that the fluid piping (17) is inserted into the openings (70a, 60a, 61a, 62a) with a predetermined gap between the openings (70a, 60a, 61a, 62a).

[0093] In the above configuration, even if the fluid piping (17) around which the heat insulating member (63) is wound comes into contact with the openings (70a, 60a, 61a, 62a), the elasticity of the heat insulating member (63) can suppress the contact noise, thereby reducing the noise of the outdoor unit (20).

[0094] (Other embodiments) In the above description, the following configuration or setting may be adopted.

[0095] The outdoor unit (20) does not necessarily have to include the first sound absorbing member (61) and the second sound absorbing member (62). Furthermore, the outdoor unit (20) does not necessarily have to include the vibration isolating member (82). The mounting member (81) does not necessarily have to be supported by the vibration isolating member (82). For example, the mounting member (81) may be the bottom plate (72) of the casing (70).

[0096] The refrigeration cycle apparatus (1) may supply the water heated in the water heat exchanger (15) to a supply target other than the hot water tank, such as a bath, a shower, a floor heating system, an air heat exchanger, and the like.

[0097] The heat source unit (20) does not necessarily have to be installed outdoors, and may be installed indoors. In this case, the heat source side heat exchanger may be a heat exchanger that exchanges heat between a heat medium such as water and a refrigerant, instead of the outdoor heat exchanger (21).

[0098] In addition, although the embodiment and the modified examples have been described, it will be understood that various modifications of the form and details are possible without departing from the spirit and scope of the claims. In addition, the elements of the above embodiment, modified examples, and other embodiments may be appropriately combined or substituted.

[0099] In addition, the descriptions "first," "second," "third," etc. in the specification and claims are used to distinguish the words to which these descriptions are attached, and do not limit the number or order of those words. [Industrial Applicability]

[0100] INDUSTRIAL APPLICABILITY As described above, the present disclosure is useful as a heat source unit and a refrigeration cycle device. [Explanation of symbols]

[0101] 1 Refrigeration cycle equipment 15 Water heat exchanger 17 Fluid Piping 18 Support part 20 Outdoor unit (heat source unit) 30 Compressor 41 First vibration-isolating member 42 Second vibration-isolating member 51 First support member 52 Second support member 60 Soundproofing materials 60a Opening 61 First sound absorbing member 61a opening 62 Second sound absorbing member 62a opening 63 Insulation materials 65 Containment Space 70 Casing 70a opening 81 Mounting member 82 Anti-vibration material S1 Machine room (internal space)

Claims

1. a casing (70) having an opening (70a) formed therein; a compressor (30) and a water heat exchanger (15) disposed in an internal space (S1) of the casing (70); a fluid pipe (17) that is inserted through an opening (70a) of the casing (70) and connected to the water heat exchanger (15); a support portion (18) disposed in an internal space (S1) of the casing (70) and supporting the fluid piping (17); Heat source unit.

2. In the heat source unit of claim 1, a mounting member (81) on which the water heat exchanger (15) is mounted; a vibration-isolating member (82) that supports the mounting member (81), The support portion (18) is fixed to the mounting member (81). Heat source unit.

3. In the heat source unit of claim 1, The support portion (18) supports the fluid piping (17) such that the fluid piping (17) is inserted into the opening (70a) of the casing (70) with a predetermined gap between the opening (70a) and the casing (70). Heat source unit.

4. In the heat source unit of claim 3, a sound insulation member (60) that is disposed in an internal space (S1) of the casing (70) and surrounds the compressor (30) and the water heat exchanger (15); The sound insulation member (60) is formed with an opening (60a), The support portion (18) supports the fluid piping (17) such that the fluid piping (17) is inserted through the opening (70a) of the casing (70) and the opening (60a) of the sound insulation member (60) with a predetermined gap between the opening (70a) of the casing (70) and the opening (60a) of the sound insulation member (60). Heat source unit.

5. In the heat source unit of claim 4, a heat insulating member (63) having elasticity and adapted to be wrapped around the fluid piping (17); The support portion (18) supports the fluid piping (17) around which the heat insulating member (63) is wound such that the fluid piping (17) is inserted through the opening (70a) of the casing (70) and the opening (60a) of the sound insulating member (60) with a predetermined gap between the fluid piping (17) and the opening (60a) of the sound insulating member (60). Heat source unit.

6. In the heat source unit of claim 4, a first sound absorbing member (61) provided between an outer surface of the sound insulating member (60) and an inner surface of the casing (70); Heat source unit.

7. The heat source unit according to claim 6, A second sound absorbing member (62) is provided on the inner surface of the sound insulating member (60). Heat source unit.

8. A refrigeration cycle device comprising the heat source unit according to any one of claims 1 to 7.

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