JP6808845B2 - Heat source unit and anti-vibration body - Google Patents

Description

An embodiment of the present invention relates to a heat source unit having a closed compressor and a vibration isolator that elastically supports the closed compressor.

The vibration generated when the closed compressor compresses the refrigerant is transmitted to the refrigerant piping and the housing of the outdoor unit and causes noise. Therefore, in order to suppress the noise during operation of the closed compressor, it is desired to block the vibration transmitted from the closed compressor to the refrigerant pipe and the housing as much as possible.

In particular, in recent closed-type compressors with variable operating frequency, flexible anti-vibration rubber with a large vibration damping rate is sealed-type compressed in order to prevent vibrations that increase in the low rotation range including startup from being transmitted to the refrigerant pipes. It is necessary to interpose between the machine and the bottom plate of the housing and absorb the vibration of the sealed compressor with the anti-vibration rubber.

On the other hand, in the high rotation range, the vibration generated by the closed type compressor is less than in the low rotation range, so a hard anti-vibration rubber with a small vibration transmissibility is used to prevent the bottom plate of the housing from vibrating. It is necessary to firmly support.

For this reason, conventionally, as a measure against vibration in both the low rotation range and the high rotation range of the sealed compressor, a vibration isolator that combines two types of vibration-proof rubber having different vibration-proof performance is used as a closed compressor and a housing. It is made to intervene between the bottom plate and the bottom plate.

JP-A-2007-290201 Japanese Unexamined Patent Publication No. 2008-31882

In the conventional anti-vibration body, two types of anti-vibration rubber are in direct contact between the closed compressor and the bottom plate so as to overlap in the vertical direction, so that the frequency component when the upper anti-vibration rubber vibrates It is possible that the frequency component when the lower anti-vibration rubber vibrates is combined.

As a result, the original anti-vibration performance of each anti-vibration rubber is impaired, and there is still room for improvement in obtaining the desired anti-vibration effect.

An object of the present invention is to obtain a heat source unit having excellent vibration isolation performance and high noise reduction, which can block vibration transmission between two types of vibration isolation rubbers having different vibration isolation performances. It is in.

The heat source unit of the present embodiment is interposed between a housing having a bottom plate, a vertical closed compressor that is placed on the bottom plate and compresses a refrigerant, and the closed compressor and the bottom plate. It is equipped with a vibration isolator.
The anti-vibration body is interposed between the first anti-vibration rubber that elastically supports the closed compressor, the first anti-vibration rubber, and the bottom plate, and the first anti-vibration rubber is provided. It includes a second anti-vibration rubber that is supported from below, and a partition member that partitions the first anti-vibration rubber and the second anti-vibration rubber. The partition member is made of a material harder than the first anti-vibration rubber and the second anti-vibration rubber, and has a dynamic magnification of the second anti-vibration rubber rather than the first anti-vibration rubber. Is set small. The first anti-vibration rubber and the second anti-vibration rubber are each formed in a tubular shape having a hollow portion. Each of the hollow portions is configured to have an equivalent inner diameter. The inner diameter of the hollow portion of the first anti-vibration rubber is set to be larger than the inner diameter of the hollow portion of the second anti-vibration rubber.

FIG. 1 is a perspective view schematically showing the structure of the outdoor unit according to the first embodiment. FIG. 2 is a cross-sectional view showing a state in which the sealed compressor is installed on the bottom plate of the housing. FIG. 3A is a cross-sectional view showing a state in which the vibration isolator according to the first embodiment is interposed between the fixing bracket of the sealed compressor and the bottom plate of the housing. FIG. 3B is a cross-sectional view of the vibration isolator according to the first embodiment. FIG. 3C is a perspective view of the intermediate partition plate used in the first embodiment. FIG. 4A is a cross-sectional view showing a state in which the vibration isolator according to the second embodiment is interposed between the fixing bracket of the sealed compressor and the bottom plate of the housing. FIG. 4B is a cross-sectional view of the vibration isolator according to the second embodiment. FIG. 4C is a perspective view of the intermediate partition plate used in the second embodiment. FIG. 5A is a cross-sectional view showing a state in which the vibration isolator according to the third embodiment is interposed between the fixing bracket of the sealed compressor and the bottom plate of the housing. FIG. 5B is a cross-sectional view of the vibration isolator according to the third embodiment. FIG. 5C is a perspective view of the intermediate partition plate used in the third embodiment.

[First Embodiment]
Hereinafter, the first embodiment will be described with reference to the drawings.

FIG. 1 shows an outdoor unit 1 of an air conditioner. The outdoor unit 1 is an example of a heat source unit, and is connected to the indoor unit via a refrigerant pipe (not shown).

As shown in FIG. 1, the outdoor unit 1 includes a box-shaped housing 2. The housing 2 includes a bottom plate 3 as a support plate, a partition plate 4, a fan guard 5, and a back plate 6 as main elements.

The partition plate 4 is erected from the bottom plate 3 and divides the inside of the housing 2 into two chambers, a heat exchange chamber 7 and a machine chamber 8. As shown in FIG. 1, when the housing 2 is viewed from the front direction, the heat exchange chamber 7 is located on the left side of the partition plate 4, and the machine room 8 is located on the right side of the partition plate 4. The fan guard 5 covers the heat exchange chamber 7 from the front of the housing 2. The back plate 5 covers the machine room 8 from behind the housing 2.

The air heat exchanger 10 and the blower 11 are housed in the heat exchange chamber 7. The air heat exchanger 10 stands up from the back surface of the heat exchange chamber 7 along the left side surface and is exposed to the outside of the housing 2. The blower 11 is arranged between the air heat exchanger 10 and the fan guard 5.

As shown in FIG. 1, a closed compressor 12, connecting pipes 13 including an expansion valve, and an electric component box 14 are housed in the machine room 8. The closed compressor 12 is a so-called vertical rotary compressor, and is mounted on the bottom plate 3 of the housing 2. The electric component box 14 is an element that controls the operation of the closed type compressor 12, and is arranged in the upper part of the machine room 8 so as to be located above the closed type compressor 12.

As shown in FIG. 2, the closed compressor 12 includes a closed container 15, an electric motor portion 16, and a compression mechanism portion 17 as main elements. The closed container 15 is erected along the vertical direction. A discharge pipe 18 is connected to the upper end of the closed container 15. The discharge pipe 18 is connected to the air heat exchanger 10 via a refrigerant pipe. Further, an oil reservoir 19 is provided at the bottom of the closed container 15. Lubricating oil is stored in the oil reservoir 19.

The electric motor unit 16 is housed in an intermediate portion of the closed container 15. The electric motor unit 16 includes a cylindrical stator 20 fixed to the inner peripheral surface of the closed container 15 and a rotor 21 surrounded by the stator 20.

The compression mechanism portion 17 is housed in the lower part of the closed container 15 so as to be located directly below the electric motor portion 16, and is immersed in the lubricating oil stored in the oil reservoir portion 19. The compression mechanism portion 17 includes a cylinder 23, a first bearing 24, a second bearing 25, a rotating shaft 26, and a ring-shaped roller 27 as main elements.

The cylinder 23 is horizontally fixed to the inner peripheral surface of the closed container 15. The first bearing 24 is fixed to the upper surface of the cylinder 23. The second bearing 25 is fixed to the lower surface of the cylinder 23. The first bearing 24 and the second bearing 25 close the inner diameter portion of the cylinder 23. Therefore, the inner diameter portion of the cylinder 23, the space surrounded by the first bearing 24 and the second bearing 25 define the cylinder chamber 28 for compressing the refrigerant. The cylinder chamber 28 is connected to the accumulator 30 attached to the closed container 15 via a suction pipe 29.

The rotating shaft 26 is rotatably supported by a first bearing 24 and a second bearing 25 so as to be coaxially located on a vertical line V1 passing through the center of the closed container 15. The rotor 21 of the electric motor unit 16 is connected to the upper part of the rotating shaft 26.

Further, the rotary shaft 26 has a crank pin portion 31. The crank pin portion 31 is eccentric with respect to the vertical straight line V1 passing through the center of the closed container 15 and is housed in the cylinder chamber 28.

The roller 27 is fitted to the outer peripheral surface of the crank pin portion 31. The roller 27 follows the rotation shaft 26 and rotates eccentrically in the cylinder chamber 28. With the eccentric rotation of the roller 27, the vane provided in the vane groove of the cylinder 23 reciprocates while slidably contacting the outer peripheral surface of the roller 27, and the inside of the cylinder chamber 28 is divided into a suction region and a compression region. To do. As a result, the volumes of the suction region and the compression region formed in the cylinder chamber 28 change, and the refrigerant sucked from the suction pipe 29 into the cylinder chamber 28 is compressed.

The torque fluctuation generated during this compression operation causes vibration in the closed compressor 12. The vibration generated in the closed compressor 12 tends to be large especially in the low rotation range including at the time of starting.

As shown in FIG. 2, the closed container 15 of the closed compressor 12 is vibration-proof and supported on the bottom plate 3 of the housing 2 in a vertically standing posture. Specifically, the fixing bracket 33 is attached to the bottom of the closed container 15. The fixing metal fitting 33 has a plurality of legs 33a that project radially toward the periphery of the closed container 15. A fitting hole 34 facing the bottom plate 3 is formed at the tip of the leg 33a.

The bottom plate 3 as a support plate has a plurality of seats 35 at positions corresponding to the legs 33a of the fixing bracket 33. The seat portion 35 projects upward toward the bottom plate 3. As shown in FIG. 3A, a flat support surface 35a is formed at the overhanging end of the seat portion 35. An insertion hole 35b is formed in the central portion of the support surface 35a.

A tubular anti-vibration body 37 is interposed between the tip of each leg 33a and the support surface 35a of the seat 35. As shown in FIGS. 3A and 3B, each vibration isolator 37 includes a first anti-vibration rubber 38, a second anti-vibration rubber 39, and an intermediate partition plate 40.

The first anti-vibration rubber 38 is a cylindrical element, and is a flat fitting convex portion 41 fitted into the fitting hole 34 of the leg portion 33a and a flat portion located on the opposite side of the fitting convex portion 41. It has a lower surface 42 and a hollow portion 43 opened in the lower surface 42. The upper end of the hollow portion 43 is closed by the fitting convex portion 41. The first anti-vibration rubber 38 of the present embodiment is made of, for example, chloroprene rubber, which is a diene-based rubber material.
The second anti-vibration rubber 39 is a cylindrical element having an outer diameter equivalent to that of the first anti-vibration rubber 38, and is coaxially located below the first anti-vibration rubber 38. The second anti-vibration rubber 39 has a flat upper surface 44, a flat lower surface 45, and a hollow portion 46 opened in the upper surface 44 and the lower surface 45. The second anti-vibration rubber 39 of the present embodiment is made of, for example, natural rubber having a rubber hardness of 45 Hs (JIS A).

Further, the first vibration-proof rubber 38 and the second vibration-proof rubber 39 have different vibration-proof performances. The dynamic magnification λ is known as one of the important indicators of the anti-vibration performance of rubber materials. The dynamic magnification λ is the ratio of the dynamic elastic modulus (Kd), which represents the rigidity when the rubber material vibrates, to the static elastic modulus (Ks), which represents the rigidity when the rubber material is slowly deformed, that is, Kd /. It can be defined in Ks. The dynamic ratio λ is proportional to the vibration transmission coefficient and the vibration damping rate of the rubber material.

According to the present embodiment, the dynamic magnification λ of the first anti-vibration rubber 38 is, for example, 1.5, whereas the dynamic magnification λ of the second anti-vibration rubber 39 is, for example, 1.2. The dynamic magnification λ of the second anti-vibration rubber 39 is smaller than that of the anti-vibration rubber 38 of 1. In other words, the first anti-vibration rubber 38 is more flexible and has a larger vibration damping rate than the second anti-vibration rubber 39, and the second anti-vibration rubber 39 is harder and vibrates than the first anti-vibration rubber 38. The transmission rate is low.

Further, although the first vibration-proof rubber 38 and the second vibration-proof rubber 39 have the same outer diameter, the inner diameter d1 of the hollow portion 43 of the first vibration-proof rubber 38 is the second vibration-proof. It is larger than the inner diameter d2 of the hollow portion 46 of the rubber 39. As a result, the first anti-vibration rubber 38 is more easily bent than the second anti-vibration rubber 39.

The intermediate partition plate 40 constituting the anti-vibration body 37 is an example of a partition member for partitioning between the first anti-vibration rubber 38 and the second anti-vibration rubber 39. As shown in FIG. 3C, the intermediate partition plate 40 is a flat disk-shaped element, and has an outer diameter equivalent to, for example, the first anti-vibration rubber 38 and the second anti-vibration rubber 39. A through hole 47 is formed in the center of the intermediate partition plate 40. The through hole 47 is located between the hollow portion 43 of the first anti-vibration rubber 38 and the hollow portion 46 of the second anti-vibration rubber 39. The inner diameter d3 of the through hole 47 is set to be the same as the inner diameter d2 of the hollow portion 46 of the second anti-vibration rubber 39.

Further, the intermediate partition plate 40 is made of a metal material harder than the first anti-vibration rubber 38 and the second anti-vibration rubber 39. As the metal material, for example, iron or an aluminum alloy can be used. The material of the intermediate partition plate 40 is not limited to metal, and for example, a synthetic resin material or a rubber material may be used as long as it is harder than the first anti-vibration rubber 38 and the second anti-vibration rubber 39 and can block vibration.

As shown in FIGS. 3A and 3B, the intermediate partition plate 40 is in close contact with the lower surface 42 of the first anti-vibration rubber 38 and the upper surface 44 of the second anti-vibration rubber 39 without any gap. It is sandwiched between the rubber 38 and the second rubber 39.

According to the present embodiment, the intermediate partition plate 40 is housed in a molding mold when molding the first anti-vibration rubber 38 and the second anti-vibration rubber 39, and the first anti-vibration rubber 38 and It is integrally molded with the second anti-vibration rubber 39. Therefore, the three elements of the first anti-vibration rubber 38, the second anti-vibration rubber 39, and the intermediate partition plate 40 are assembled as an integral structure connected so as not to disperse with each other.

Further, when assembling the first anti-vibration rubber 38, the second anti-vibration rubber 39 and the intermediate partition plate 40 as an integral structure, the three elements may be joined to each other with an adhesive.

As shown in FIGS. 2 and 3A, the first anti-vibration rubber 38 of the anti-vibration body 37 elastically receives the sealed compressor 12 via the fixing bracket 33. The second vibration-proof rubber 39 of the vibration-proof body 37 is interposed between the intermediate partition plate 40 and the support surface 35a of the seat portion 35, and supports the first vibration-proof rubber 38 from below.

A bolt 50 as a fastener is inserted into the insertion hole 35b of the seat portion 35 from below the bottom plate 3. The bolt 50 penetrates the hollow portion 46 of the second anti-vibration rubber 39, the through hole 47 of the intermediate partition plate 40, the hollow portion 43 of the first anti-vibration rubber 38, and the fitting convex portion 41, and the anti-vibration body 37. It protrudes above. A nut 51 is screwed into the protruding end of the bolt 50. By this screwing, the first anti-vibration rubber 38 and the second anti-vibration rubber 39 are appropriately compressed between the leg portion 33a of the fixing bracket 33 and the seat portion 35 of the bottom plate 3, and the bottom portion of the sealed compressor 12 is compressed. Is elastically held on the bottom plate 3.

In the first embodiment, when the closed compressor 12 starts operation, the rotating shaft 26 of the compression mechanism unit 17 rotates following the rotor 21 of the electric motor unit 16. Along with the rotation of the rotating shaft 26, the roller 27 fitted to the outer peripheral surface of the crankpin portion 31 rotates eccentrically in the cylinder chamber 28, and the vane reciprocates while slidably contacting the outer peripheral surface of the roller 27. .. Therefore, the volumes of the suction region and the compression region formed in the cylinder chamber 28 change, and the refrigerant sucked from the suction pipe 29 into the cylinder chamber 28 is compressed.

In the low rotation range including when the closed compressor 12 is started, the torque applied to the roller 27 when the roller 27 makes one rotation fluctuates greatly with the compression / discharge operation of the refrigerant, and the vibration of the closed compressor 12 is generated. Be encouraged.

The vibration of the sealed compressor 12 is first transmitted to the first anti-vibration rubber 38 of the anti-vibration body 37 through the legs 33 a of the fixing bracket 33. The first anti-vibration rubber 38 is made of a rubber material having a dynamic magnification λ larger than that of the second anti-vibration rubber 39 that supports the first anti-vibration rubber 38 from below. In other words, since the first anti-vibration rubber 38 is flexible and has a large vibration damping rate, it is deformed so as to absorb the vibration when it receives the vibration of the closed compressor 12.

Therefore, the vibration of the closed compressor 12 is less likely to be transmitted to the discharge pipe 18 and the suction pipe 29 connected to the closed container 15, and the noise caused by the vibration of the discharge pipe 18 and the suction pipe 29 can be suppressed.

On the other hand, when the closed compressor 12 reaches the high rotation range, the vibration generated by the closed compressor 12 is reduced as compared with the low rotation range. At this time, the second anti-vibration rubber 39 that supports the first anti-vibration rubber 38 from below is made of a rubber material having a dynamic magnification λ smaller than that of the first anti-vibration rubber 38. In other words, since the second anti-vibration rubber 39 is hard and has a small vibration transmissibility, the sealed compressor 12 can be firmly supported so that the sealed compressor 12 does not shake.

Therefore, the vibration that is about to be transmitted from the sealed compressor 12 to the bottom plate 3 of the housing 2 can be blocked by the second anti-vibration rubber 39, and the noise caused by the vibration of the bottom plate 3 can be suppressed.

In the first embodiment, an intermediate partition plate 40 made of metal, which is harder than the rubber material, is interposed between the first anti-vibration rubber 38 and the second anti-vibration rubber 39 having different anti-vibration performance. By separating the first anti-vibration rubber 38 and the second anti-vibration rubber 39, the intermediate partition plate 40 transmits vibration between the first anti-vibration rubber 38 and the second anti-vibration rubber 39. It is shut off.

Therefore, it is possible to prevent the frequency component when the first anti-vibration rubber 38 vibrates and the frequency component when the second anti-vibration rubber 39 vibrates from being combined, and the first anti-vibration rubber 38 and the first anti-vibration rubber 38 and the first The original anti-vibration performance of the anti-vibration rubber 39 of No. 2 can be fully exhibited.

Therefore, the vibration isolation performance of the sealed compressor 12 is improved in all the operating ranges from the low rotation range to the high rotation range, and it is possible to provide the outdoor unit 1 having excellent quietness.

In addition, since the anti-vibration body 37 is assembled as an integral structure, the relative positional relationship between the first anti-vibration rubber 38, the second anti-vibration rubber 39, and the intermediate partition plate 40 is determined. Therefore, when the vibration caused by the operation of the sealed compressor 12 acts on the vibration isolator 37, the first anti-vibration rubber 38 and the second anti-vibration rubber 39 are relatively displaced from the normal positions. Can be prevented. Therefore, the anti-vibration performance of the first anti-vibration rubber 38 and the second anti-vibration rubber 39 is not impaired.

At the same time, when the vibration isolator 37 is interposed between the fixing bracket 33 and the bottom plate 3, it is possible to prevent the three elements 38, 39, 40 from shifting or being dispersed, and the sealed compressor 12 is used as the bottom plate. Workability when supporting vibration isolation on top of 3 is improved.

In the present embodiment, since the intermediate partition plate 40 is made of a metal material, it is possible to correspond to the melting points of various rubber materials forming the first anti-vibration rubber 38 and the second anti-vibration rubber 39. Become. Therefore, it is advantageous in molding the anti-vibration body 37 using the molding die, and the integral molding of the anti-vibration body 37 becomes easy.

Further, for example, by selecting the material (specific gravity) of the intermediate partition plate 40 according to the specifications of the housing 2 of the outdoor unit 1 or the sealed compressor 12, the first anti-vibration rubber 38 and the second anti-vibration rubber It is possible to optimize the anti-vibration performance of 39.

[Second Embodiment]
4A, 4B and 4C disclose a second embodiment.

In the second embodiment, the matters relating to the intermediate partition plate 60 of the anti-vibration body 37 are different from those in the first embodiment, and the other configurations of the anti-vibration body 37 are the same as those in the first embodiment. .. Therefore, in the second embodiment, the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The intermediate partition plate 60 is made of a metal material such as iron or an aluminum alloy. As shown in FIGS. 4B and 4C, the intermediate partition plate 60 includes a disk-shaped base portion 61, a first engaging portion 62, and a second engaging portion 63 as main elements.

The base portion 61 is sandwiched between the lower surface 42 and the upper surface 44 so as to be in close contact with the lower surface 42 of the first anti-vibration rubber 38 and the upper surface 44 of the second anti-vibration rubber 39 without a gap. A through hole 47 through which the bolt 50 penetrates is formed in the central portion of the base portion 61.

The first engaging portion 62 and the second engaging portion 63 are examples of positioning portions, respectively. The first engaging portion 62 is formed in a cylindrical shape continuous in the circumferential direction of the base portion 61, and protrudes coaxially from the upper surface of the base portion 61 toward the first anti-vibration rubber 38. .. Therefore, the first engaging portion 62 is integrally embedded in the first anti-vibration rubber 38. In other words, the first anti-vibration rubber 38 has a ring-shaped fitting groove 64 opened on the lower surface 42 thereof, and the first engaging portion 62 is tightly fitted into the fitting groove 64. ..

The second engaging portion 63 is formed in a cylindrical shape continuous in the circumferential direction of the base portion 61, and is coaxially projected from the lower surface of the base portion 61 toward the second anti-vibration rubber 39. .. Therefore, the second engaging portion 63 is integrally embedded in the second anti-vibration rubber 39. In other words, the second anti-vibration rubber 39 has a ring-shaped fitting groove 65 opened on the upper surface 44 thereof, and the second engaging portion 63 is tightly fitted into the fitting groove 65. ..

According to the second embodiment, the first engaging portion 62 of the intermediate partition plate 60 is wrapped by the first anti-vibration rubber 38, and the second engaging portion 63 of the intermediate partition plate 60 is the second anti-vibration anti-vibration. It is kept wrapped by the rubber 39.

Therefore, it is possible to sufficiently secure the contact area of the intermediate partition plate 60 with respect to the first anti-vibration rubber 38 and the second anti-vibration rubber 39, and the first anti-vibration rubber 38 and the second anti-vibration rubber 39. And the three elements of the intermediate partition plate 60 can be connected even more firmly.

Moreover, apparently, the first engaging portion 62 of the intermediate partition plate 60 bites into the first anti-vibration rubber 38, and the second engaging portion 63 bites into the second anti-vibration rubber 39, so that the base The first anti-vibration rubber 38 and the second anti-vibration rubber 39 are relatively positioned with respect to the portion 61.

Therefore, when the vibration caused by the operation of the closed compressor 12 acts on the vibration isolator 37, it is ensured that the first anti-vibration rubber 38 and the second anti-vibration rubber 39 move relative to the normal positions. Can be avoided.

In the second embodiment, the anti-vibration body 37 is not limited to integrally molding using a molding die, for example, the first anti-vibration rubber 38 and the second anti-vibration rubber 39. And the intermediate partition plate 60 may be individually formed in advance.

In this case, the first engaging portion 62 of the intermediate partition plate 60 is fitted into the fitting groove 64 of the first anti-vibration rubber 38, and the second engaging portion 63 of the intermediate partition plate 60 is seconded. By fitting into the fitting groove 65 of the anti-vibration rubber 39, the three elements of the first anti-vibration rubber 38, the second anti-vibration rubber 39 and the intermediate partition plate 60 are integrated.

Further, an adhesive may be used in combination when combining the three elements of the first anti-vibration rubber 38, the second anti-vibration rubber 39 and the intermediate partition plate 60.

In addition, the first engaging portion 62 and the second engaging portion 63 are not limited to a cylindrical shape continuous in the circumferential direction of the base portion 61, but are arranged at intervals in the circumferential direction of the base portion 61. May be good.

[Third Embodiment]
5A, 5B and 5C disclose a third embodiment.

In the third embodiment, the matters relating to the intermediate partition plate 70 of the anti-vibration body 37 are different from those in the first embodiment, and the other configurations of the anti-vibration body 37 are the same as those in the first embodiment. .. Therefore, in the third embodiment, the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The intermediate partition plate 70 is made of a metal material such as iron or an aluminum alloy. As shown in FIGS. 5B and 5C, the intermediate partition plate 70 includes a disk-shaped base portion 71 and an outer wall portion 72 as main elements.

The base portion 71 is sandwiched between the lower surface 42 and the upper surface 44 so as to be in close contact with the lower surface 42 of the first anti-vibration rubber 38 and the upper surface 44 of the second anti-vibration rubber 39 without a gap. A through hole 47 through which the bolt 50 penetrates is formed in the central portion of the base portion 71.

The outer wall portion 72 is an example of a positioning portion, and is formed in a cylindrical shape so as to surround the base portion 71. The outer wall portion 72 is directed from the upper surface of the base portion 71 toward the first anti-vibration rubber 38 toward the first anti-vibration rubber 38, and from the lower surface of the base portion 71 toward the second anti-vibration rubber 39. It is provided with a second wall portion 74 that protrudes coaxially.

The first wall portion 73 is in contact with the outer peripheral surface of the first anti-vibration rubber 38 without a gap so as to surround the first anti-vibration rubber 38. The second wall portion 74 is in contact with the outer peripheral surface of the second anti-vibration rubber 39 without a gap so as to surround the second anti-vibration rubber 39. In other words, the first anti-vibration rubber 38 is fitted inside the first wall portion 73, and the second anti-vibration rubber 39 is fitted inside the second wall portion 74.

According to the third embodiment, the first anti-vibration rubber 38 and the second anti-vibration rubber 39 are kept surrounded by the outer wall portion 72 of the intermediate partition plate 70. Therefore, it is possible to sufficiently secure the contact area of the intermediate partition plate 70 with respect to the first anti-vibration rubber 38 and the second anti-vibration rubber 39, and the first anti-vibration rubber 38 and the second anti-vibration rubber 39. And the three elements of the intermediate partition plate 70 can be connected even more firmly.

At the same time, by providing the outer wall portion 72 on the intermediate partition plate 70, the movement of the first anti-vibration rubber 38 and the second anti-vibration rubber 39 with respect to the base portion 71 along the radial direction is restricted, and the base portion 61, Relative positioning of the first anti-vibration rubber 38 and the second anti-vibration rubber 39 is made.

Therefore, when the vibration caused by the operation of the closed compressor 12 acts on the vibration isolator 37, it is ensured that the first anti-vibration rubber 38 and the second anti-vibration rubber 39 move relative to the normal positions. Can be avoided.

In the third embodiment, the anti-vibration body 37 is not limited to being integrally molded using a molding die, for example, the first anti-vibration rubber 38 and the second anti-vibration rubber 39. And the intermediate partition plate 70 may be individually formed in advance.

In this case, the first anti-vibration rubber 38 is fitted inside the first wall portion 73 of the outer wall portion 72, and the second anti-vibration rubber 39 is fitted inside the second wall portion 74 of the outer wall portion 72. By fitting into, the three elements of the first anti-vibration rubber 38, the second anti-vibration rubber 39, and the intermediate partition plate 70 are integrated.

Further, an adhesive may be used in combination when combining the three elements of the first anti-vibration rubber 38, the second anti-vibration rubber 39 and the intermediate partition plate 70.

In addition, the first wall portion 73 and the second wall portion 74 of the outer wall portion 72 are not limited to a cylindrical shape that is continuous in the circumferential direction of the base portion 71, but are arranged at intervals in the circumferential direction of the base portion 71. You may be.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

For example, the materials of the first anti-vibration rubber, the second anti-vibration rubber, and the intermediate partition plate can be appropriately changed according to the anti-vibration performance to be obtained, and the materials are not particularly limited.

In addition, the dynamic ratios of the first anti-vibration rubber and the second anti-vibration rubber disclosed in the first embodiment are merely reference values, and the dynamic ratios are, for example, the operating environment of a closed compressor. It can be changed as appropriate according to the above.

Further, the heat source unit is not specified as an outdoor unit of an air conditioner, and can be similarly applied to, for example, a heat source unit of a heat pump type water heater.

1 ... heat source unit (outdoor unit), 2 ... housing, 3 ... bottom plate (support plate), 12 ... sealed compressor, 37 ... vibration isolator, 38 ... first anti-vibration rubber, 39 ... second anti-vibration Vibration rubber, 40 ... Partition member (intermediate partition plate).

Claims (7)

A housing with a bottom plate and
A vertical sealed compressor that is placed on the bottom plate and compresses the refrigerant.
A vibration isolator interposed between the closed compressor and the bottom plate is provided.
The anti-vibration body
A first anti-vibration rubber that elastically supports the sealed compressor,
A second anti-vibration rubber, which is interposed between the first anti-vibration rubber and the bottom plate and supports the first anti-vibration rubber from below,
A partition member for partitioning between the first anti-vibration rubber and the second anti-vibration rubber is included.
The partition member is made of a material harder than the first anti-vibration rubber and the second anti-vibration rubber, and the dynamic ratio of the second anti-vibration rubber is higher than that of the first anti-vibration rubber. small and Kuna',
The first anti-vibration rubber and the second anti-vibration rubber are each formed into a tubular shape having a hollow portion, and each of the entire hollow portions is configured to have an equivalent inner diameter.
A heat source unit in which the inner diameter of the hollow portion of the first anti-vibration rubber is larger than the inner diameter of the hollow portion of the second anti-vibration rubber . The heat source unit according to claim 1, wherein the first anti-vibration rubber, the second anti-vibration rubber, and the partition member are assembled as an integral structure. The partition member is provided in a base portion sandwiched between the first anti-vibration rubber and the second anti-vibration rubber, and the first anti-vibration rubber and the first anti-vibration rubber with respect to the base portion. The heat source unit according to claim 1, further comprising a positioning portion for determining the relative positional relationship of the anti-vibration rubbers of 2. The positioning portion is projected from the base portion toward the first anti-vibration rubber, and the first engaging portion embedded in the first anti-vibration rubber and the second anti-vibration portion from the base portion. The heat source unit according to claim 3, which is a second engaging portion that is projected toward the vibration-proof rubber and embedded in the second vibration-proof rubber. The heat source unit according to claim 3, wherein the positioning portion is provided on the base portion and is an outer wall portion that comes into contact with the outer peripheral surface of the first anti-vibration rubber and the outer peripheral surface of the second anti-vibration rubber. The heat source unit according to any one of claims 1 to 5 , wherein the partition member is made of a metal material. A first anti-vibration rubber that elastically supports the closed compressor mounted on the support plate,
A second anti-vibration rubber that is interposed between the first anti-vibration rubber and the support plate and supports the first anti-vibration rubber from below,
A partition member for partitioning between the first anti-vibration rubber and the second anti-vibration rubber is included.
The partition member is made of a material harder than the first anti-vibration rubber and the second anti-vibration rubber, and the dynamic ratio of the second anti-vibration rubber is higher than that of the first anti-vibration rubber. small and Kuna',
The first anti-vibration rubber and the second anti-vibration rubber are each formed into a tubular shape having a hollow portion, and each of the entire hollow portions has an equivalent inner diameter.
A vibration isolator in which the inner diameter of the hollow portion of the first anti-vibration rubber is larger than the inner diameter of the hollow portion of the second anti-vibration rubber .

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