Compressor

The compressor's housing configuration and heat dissipation features address thermal deterioration of elastic bodies in vibration isolation members, ensuring effective vibration suppression and durability by minimizing heat transfer, particularly near discharge ports.

JP2025108939APending Publication Date: 2025-07-24TOYOTA INDUSTRIES CORP
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Patent Information

Application Number
JP2024002497
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-11
Publication Date
2025-07-24

AI Technical Summary

Technical Problem

Conventional compressors face issues with thermal deterioration of the elastic body in vibration isolation members due to heat transmission from the housing, especially when mounted near discharge ports, leading to reduced vibration isolation effectiveness and potential breakage.

Method used

The compressor design includes a housing configuration with a first housing having a discharge port and a second housing separated by a sealing material, with mounting legs positioned to minimize heat conduction to the vibration isolation member, using base portions on the cooler second housing and incorporating heat dissipation features to reduce thermal impact on the elastic body.

Benefits of technology

This design effectively suppresses thermal deterioration of the elastic body, maintaining vibration isolation performance and preventing breakage, even when mounted in limited spaces near discharge ports.

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Abstract

To provide a compressor capable of restraining thermal deterioration of an elastic body of a vibration control member, while satisfying a request for mounting the compressor to a mounting object arranged in a limited space at a good balance.SOLUTION: This compressor comprises: a fitting foot 25 projecting from an outer face of a housing 1 and having a mounting hole 31; and a vibration control member 41 mounted to the mounting hole 31 and having an elastic body 47. The housing 1 has: a first housing 11 having a discharge port 21 for discharging fluid compressed by a compression part 3 to outside; and a second housing 13 adjacent to the first housing 11 while providing a seal material 17 between it and the first housing 11. The mounting foot 25 has: a base part 27 provided on an outer periphery of the second housing 13; and a cylindrical part 29, which is connected to the base part 27 and on which the mounting hole 31 is formed. At least one part of the mounting hole 31 is outward on an outer peripheral side of the first housing 11 and nearer the first housing 11 than the seal material 17.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to a compressor.

Background Art

[0002] Patent Document 1 discloses a conventional compressor. This compressor includes a compression part, a housing, mounting feet, and vibration isolation members.

[0003] The compression part compresses a fluid. The housing houses the compression part. The mounting feet project from the outer surface of the housing and have mounting holes. The vibration isolation members are attached to the mounting holes of the mounting feet.

[0004] The vibration isolation members have an outer cylinder, an inner cylinder, and an elastic body. The outer cylinder is held on the inner peripheral surface of the mounting hole. The inner cylinder is disposed inside the outer cylinder, and a fastening member for fastening the mounting feet to an object to be mounted is inserted therethrough. The elastic body is disposed between the outer cylinder and the inner cylinder and connects the two.

[0005] This compressor is fixed to a vehicle or the like by fastening the mounting feet to an object to be mounted such as a vehicle with a fastening member inserted through the inner cylinder of the vibration isolation member. During the operation of the compressor, vibrations generated in the compression part are absorbed by the elastic body of the vibration isolation member attached to the mounting hole. As a result, according to this compressor, it is possible to suppress the transmission of vibrations generated in the compression part to a vehicle or the like.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] However, in the above-described conventional compressor, during the operation of the compressor, since the fluid compressed in the compression section becomes hot, the heat of the hot fluid is transmitted to the vibration isolation member through the housing that houses the compression section, and there is a problem that an elastic body such as rubber deteriorates due to heat. For example, if the elastic body such as rubber softens due to heat, the elastic body with reduced strength is likely to break. Also, if the elastic body hardens due to being exposed to high temperatures for a long time, the vibration isolation characteristics are likely to deteriorate.

[0008] Here, when mounting the compressor on a vehicle or the like, it is required to mount the compressor maintained in an appropriate posture in a well-balanced manner with respect to the mounting target arranged in a limited space. In order to meet this requirement, depending on the mounting mode of the compressor, there may be a case where the mounting feet fastened to the mounting target have to be arranged, for example, near the discharge port for discharging the fluid compressed in the compression section to the outside. In this case, since the vibration isolation member approaches the discharge port that is likely to become hot due to the heat of the compressed fluid, it becomes difficult to suppress the heat deterioration of the elastic body.

[0009] The present invention has been made in view of the above-described conventional circumstances, and while meeting the requirement of mounting the compressor in a well-balanced manner with respect to the mounting target arranged in a limited space, it is an object to be solved to provide a compressor capable of suppressing the heat deterioration of the elastic body of the vibration isolation member.

Means for Solving the Problems

[0010] The compressor of the present invention includes a compression section that compresses a fluid, a housing that houses the compression section, mounting feet that protrude from the outer surface of the housing and have mounting holes, and a vibration isolation member mounted in the mounting holes, and the vibration isolation member has an outer cylinder held on the inner peripheral surface of the mounting hole, an inner cylinder arranged inside the outer cylinder through which a fastening member for fastening the mounting feet to the mounting target is inserted, and an elastic body arranged between the outer cylinder and the inner cylinder to connect the two. The housing includes a first housing having a discharge port for discharging the fluid compressed in the compression unit to the outside, and a second housing adjacent to the first housing with a sealing material interposed therebetween. The mounting leg has a base portion provided on the outer peripheral surface of the second housing, and a cylindrical portion connected to the base portion and having the mounting hole formed therein. At least a part of the mounting hole is located outside the outer peripheral side of the first housing and on the first housing side with respect to the sealing material.

[0011] In the compressor of the present invention, the housing has a first housing that is likely to become hot due to having a discharge port, and a second housing that is adjacent to the first housing via a sealing material and is less likely to become hotter than the first housing. And at least a part of the mounting hole is located outside the outer peripheral side of the first housing and on the first housing side with respect to the sealing material. For this reason, the vibration-proof member attached to the mounting hole is disposed near the discharge port that is likely to become hot and the discharge pipe connected to the discharge port, and there is concern about thermal deterioration of the elastic body.

[0012] In this regard, in this compressor, the base portion of the mounting leg is provided on the second housing that is less likely to become hotter than the first housing. Therefore, compared with the case where the base portion of the mounting leg is provided on the first housing, heat conduction from the housing to the base portion is suppressed, and it is possible to suppress the cylindrical portion connected to the base portion from becoming hot. As a result, it is possible to suppress heat from being transmitted to the elastic body of the vibration-proof member attached to the mounting hole of the cylindrical portion.

[0013] And in order to meet the requirement of mounting the compressor on the mounting target arranged in a limited space in a well-balanced manner, even when adopting a mounting mode of the compressor such that the mounting leg is arranged near the discharge port, thermal deterioration of the elastic body in the vibration-proof member attached to the mounting leg can be suppressed.

[0014] Therefore, according to the compressor of the present invention, while meeting the requirement of evenly mounting the compressor on an object to be mounted arranged in a limited space, it is possible to suppress thermal deterioration of the elastic body of the vibration isolation member.

[0015] Preferably, the central axis of the mounting hole is arranged closer to the first housing side than the sealing material.

[0016] In this case, the vibration isolation member mounted in the mounting hole approaches the discharge port more, and the elastic body is more likely to thermally deteriorate, so the effect of the present invention contributes effectively.

[0017] Preferably, the base portion is provided with heat dissipation holes.

[0018] In this case, the heat transmitted from the second housing to the base portion can be discharged through the heat dissipation holes. Therefore, it is possible to suppress heat from being transmitted from the base portion to the cylindrical portion and, by extension, to the elastic body of the vibration isolation member.

[0019] Preferably, the base portion is provided with heat dissipation fins.

[0020] In this case, the heat transmitted from the second housing to the base portion can be discharged through the heat dissipation fins. Therefore, it is possible to suppress heat from being transmitted from the base portion to the cylindrical portion and, by extension, to the elastic body of the vibration isolation member.

Advantages of the Invention

[0021] According to the compressor of the present invention, while meeting the requirement of evenly mounting the compressor on an object to be mounted arranged in a limited space, it is possible to suppress thermal deterioration of the elastic body of the vibration isolation member.

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, Examples 1 and 2 embodying the present invention will be described with reference to the drawings.

[0024] (Example 1) The compressor of Example 1 is an example of a specific embodiment of the compressor of the present invention, and specifically is a scroll type electric compressor. This compressor is mounted on a vehicle, for example, and used in a vehicle air conditioner.

[0025] As shown in FIG. 1, the compressor of Example 1 includes a metal housing 1, a compression section 3, an electric motor 5, a drive shaft 7, and an inverter 9. The housing 1 is made of, for example, an aluminum alloy.

[0026] The housing 1 has a discharge housing 11, a motor housing 13, and an inverter housing 15. The discharge housing 11 is an example of the "first housing" in the present invention. The motor housing 13 is an example of the "second housing" in the present invention. The discharge housing 11 and the motor housing 13 have a generally cylindrical outer shape. The inverter housing 15 has a generally rectangular box-shaped outer shape.

[0027] In the following description, the side of the discharge housing 11 located on the left side in FIG. 1 is defined as the front side of the compressor. Also, the front-rear direction shown in FIG. 2 and later is displayed corresponding to FIG. 1. Note that the front-rear direction shown in FIG. 1 is an example, and the front-rear direction of the compressor is appropriately changed according to the vehicle on which it is mounted.

[0028] The discharge housing 11, the motor housing 13, and the inverter housing 15 are integrally assembled while being arranged in this order from the front to the rear. A gasket 17 is provided between the discharge housing 11 and the motor housing 13. The gasket 17 is an example of the "sealing material" in the present invention. The gasket 17 is made of, for example, rubber or resin.

[0029] The discharge housing 11 has a peripheral wall extending in a cylindrical shape in the front-rear direction and a bottom wall connected to the front end of the peripheral wall, and has a bottomed cylindrical shape with an open rear side. The motor housing 13 has a peripheral wall extending in a cylindrical shape in the front-rear direction and a bottom wall connected to the rear end of the peripheral wall, and has a bottomed cylindrical shape with an open front side. The discharge housing 11 and the motor housing 13 are butted against each other so that the openings face each other and are fastened by a plurality of bolts (not shown). The inverter housing 15 is fastened to the bottom wall of the motor housing 13 by a plurality of bolts (not shown).

[0030] The discharge housing 11 is provided with a discharge chamber 19 and a discharge port 21 that communicates the discharge chamber 19 with the outside. And a discharge pipe 23 is connected to the discharge port 21. Note that in FIG. 1, FIG. 2, etc., a part of the discharge pipe 23 is partially shown. The discharge pipe 23 is connected to a condenser (not shown).

[0031] Inside the motor housing 13, a shaft support member (not shown) and a fixed scroll (not shown) in front of the shaft support member are accommodated in a state of being in contact with each other. Also, inside the motor housing 13, a columnar drive shaft 7 extending in the front-rear direction is accommodated. The drive shaft 7 is rotatably supported around the drive shaft axis by the bottom wall of the motor housing 13 and the shaft support member.

[0032] The motor housing 13 is provided with a suction port that communicates the inside of the motor housing 13 with the outside. The suction port is connected to an evaporator by a suction pipe. Note that the illustration of the suction port, the suction pipe, and the evaporator is omitted.

[0033] The compression part 3 is accommodated on the front side inside the motor housing 13. Although not shown, the compression part 3 has a fixed scroll and a turning scroll arranged to face the fixed scroll. The compression part 3 changes the volume of the compression chamber formed between the fixed scroll and the turning scroll by the rotation of the turning scroll due to the rotation of the drive shaft 7. Thereby, the compression part 3 compresses the refrigerant sucked into the motor housing 13 from the suction port and discharges the compressed refrigerant to the discharge chamber 19. The high-temperature and high-pressure refrigerant discharged into the discharge chamber 19 flows out to the outside through the discharge port 21 and the discharge pipe 23. The refrigerant is an example of the "fluid" in the present invention.

[0034] The electric motor 5 is housed on the rear side within the motor housing 13. Although illustration is omitted, the electric motor 5 has a cylindrical stator and a rotor disposed inside the stator. The stator is fixed to the inner peripheral surface of the motor housing 13 and is connected to the inverter 9. A drive shaft 7 is fixed to the rotor. When the rotor rotates due to the power supply from the inverter 9 to the stator, the drive shaft 7 is rotated.

[0035] The inverter 9 is housed within the inverter housing 15. Although illustration is omitted, the inverter 9 has an inverter circuit and a control circuit. The inverter circuit drives the electric motor 5. The control circuit controls the inverter circuit. The inverter circuit and the control circuit are each constituted by a substrate, electronic components mounted on the substrate, switching elements, and the like.

[0036] As shown in FIGS. 1 and 2, the motor housing 13 is provided with three mounting feet 25. Note that in FIG. 2, two of the three mounting feet 25 are illustrated. One of the three mounting feet 25 is provided at the front portion of the motor housing 13, another one is provided at the rear portion of the motor housing 13, and the remaining one is provided at a position on the motor housing 13 where this compressor can be supported at three points.

[0037] The three mounting feet 25 have the same basic configuration. Each mounting foot 25 is made of metal and has a substantially rectangular base portion 27 and a substantially cylindrical cylindrical portion 29.

[0038] The mounting foot 25 provided at the front portion of the motor housing 13 is integrally formed on the outer peripheral surface 13a so as to protrude from the outer peripheral surface 13a of the motor housing 13 at the front portion of the motor housing 13. The base portion 27 of the mounting foot 25 provided at the front portion of the motor housing 13 extends obliquely so as to gradually separate from the outer peripheral surface 1a of the housing 1 from the rear to the front. As shown in FIG. 3, the tip of the base portion 27 extends to the vicinity of the virtual line L indicating the position of the gasket 17.

[0039] The bases 27 of the remaining two mounting legs 25 extend straight outward toward the outer peripheral side so as to be substantially orthogonal to the outer peripheral surface 13a of the motor housing 13.

[0040] Each base 27 is provided with a heat dissipation hole 33 penetrating in the thickness direction.

[0041] Each cylindrical portion 29 is integrally connected to the protruding tip of each base 27 protruding from the outer peripheral surface 13a of the motor housing 13.

[0042] In the mounting leg 25 provided at the front portion of the motor housing 13, the cylindrical portion 29 is integrally formed at the tip of the base 27 extending obliquely from the outer peripheral surface 13a of the motor housing 13. Most of this cylindrical portion 29 is disposed outside the outer peripheral side of the discharge housing 11. More specifically, most of the cylindrical portion 29 is disposed on the discharge housing 11 side rather than the gasket 17 side in the front-rear direction.

[0043] Each cylindrical portion 29 is formed with a mounting hole 31 having a circular cross section with a central axis O. As shown in FIG. 3, in the mounting leg 25 provided at the front portion of the motor housing 13, most of the mounting hole 31 is disposed outside the outer peripheral side of the discharge housing 11. More specifically, the central axis O of the mounting hole 31 in the mounting leg 25 provided at the front portion of the motor housing 13 is disposed on the discharge housing 11 side in front of the virtual line L indicating the position of the gasket 17 in the front-rear direction.

[0044] As shown in FIGS. 1 and 4, a damper 41 is mounted in the mounting hole 31 of each mounting leg 25. The damper 41 is an example of the "vibration damping member" in the present invention. The resonance frequency of this damper 41 is set to a predetermined value by setting the elastic body 47 described later to a predetermined shape. Therefore, when this compressor is mounted on a vehicle, this damper 41 exhibits an effect of reducing vibration transmission in a frequency region higher than the set resonance frequency.

[0045] In a state where the damper 41 is mounted in the mounting hole 31, the inner peripheral surface 31a of the mounting hole 31 abuts against the outer peripheral surface of the damper 41, specifically, the outer peripheral surface 43a of the outer cylinder 43 described later. As a result, the central axis O of the mounting hole 31 coincides with the central axis C of the damper 41, and the damper 41 is coaxially held in the mounting hole 31.

[0046] As shown in FIGS. 5 and 6, the damper 41 includes a cylindrical outer cylinder 43, a cylindrical inner cylinder 45 disposed inside the outer cylinder 43, a rubber elastic body 47, and a pair of restricting plates 49. The outer cylinder 43, the inner cylinder 45, and the restricting plates 49 are made of, for example, metal or synthetic resin.

[0047] The outer cylinder 43 and the inner cylinder 45 have a common central axis C, and the two are coaxially arranged. The inner cylinder 45 is longer in the axial direction than the outer cylinder 43 and protrudes from both sides of the outer cylinder 43 in the axial direction.

[0048] The elastic body 47 is disposed between the outer cylinder 43 and the inner cylinder 45 and connects the two. The elastic body 47 includes a thin-walled cylindrical portion 51, a thick-walled cylindrical portion 53, and four connecting portions 55. The thin-walled cylindrical portion 51, the thick-walled cylindrical portion 53, and the four connecting portions 55 are integrally formed by vulcanization molding.

[0049] The thin-walled cylindrical portion 51 is formed in a thin film shape and adhered to the outer peripheral surface of the inner cylinder 45. The thick-walled cylindrical portion 53 is formed in a thicker film shape than the thin-walled cylindrical portion 51 and adhered to the inner peripheral surface of the outer cylinder 43. The thin-walled cylindrical portion 51 and the thick-walled cylindrical portion 53 have the same axial length as the outer cylinder 43.

[0050] The four connecting portions 55 are connected to the thin-walled cylindrical portion 51 and the thick-walled cylindrical portion 53 at the central position in the axial direction of the thin-walled cylindrical portion 51 and the thick-walled cylindrical portion 53. The four connecting portions 55 are arranged at equal intervals in the circumferential direction of the thin-walled cylindrical portion 51. That is, each connecting portion 55 is arranged at intervals of 90 degrees in the circumferential direction. Each connecting portion 55 has a rectangular parallelepiped shape. Each connecting portion 55 has a longer radial length than the axial length.

[0051] A pair of regulating plates 49 are respectively adhered to the axial end faces of the inner cylinder 45. Each regulating plate 49 has a disc shape with an outer diameter slightly larger than that of the outer cylinder 43. Each regulating plate 49 has a through hole 49a with a size equivalent to the inner diameter of the inner cylinder 45. The center of the through hole 49a is located on the central axis C of the inner cylinder 45.

[0052] When the damper 41 is mounted into the mounting hole 31, for example, an integrated unit of the inner cylinder 45, the outer cylinder 43, and the elastic body 47 with the regulating plate 49 not adhered is inserted into the mounting hole 31, and then the regulating plate 49 is adhered to the axial end face of the inner cylinder 45 that protrudes axially in one direction from the mounting hole 31, and the regulating plate 49 is also adhered to the axial end face of the inner cylinder 45 that protrudes axially in the other direction from the mounting hole 31.

[0053] As shown in FIG. 1, this compressor is attached to the mounting target 91 by fastening each mounting leg 25 to the mounting target 91 with a fastening member 93 inserted through the inner cylinder 45 of the damper 41 mounted on each mounting leg 25. In this mounted state, the elastic body 47 in the damper 41 absorbs vibrations in a predetermined frequency range generated in the compression section 3 during the operation of the compressor. Thereby, it is possible to suppress the transmission of the vibrations generated in the compression section 3 to the mounting target 91.

[0054] And in this compressor, in order to meet the requirement of attaching the compressor to the mounting target 91 arranged in a limited space in a well-balanced manner, one of the mounting legs 25 is provided at the front part of the motor housing 13, and most of the mounting hole 31 of the mounting leg 25 is arranged outside the outer peripheral side of the discharge housing 11. More specifically, the central axis O of the mounting hole 31 is arranged on the discharge housing 11 side in front of the virtual line L indicating the position of the gasket 17 in the front-rear direction. For this reason, the damper 41 mounted in the mounting hole 31 of this mounting leg 25 is arranged very close to the discharge pipe 23 connected to the discharge port 21, and there is concern about the thermal deterioration of the elastic body 47.

[0055] In this regard, in this compressor, a base portion 27 of the mounting leg 25 is provided on the motor housing 13 which is less likely to become hotter than the discharge housing 11. Therefore, compared with the case where the base portion 27 of the mounting leg 25 is provided on the discharge housing 11, heat conduction from the housing 1 to the base portion 27 is suppressed, and it is possible to suppress the temperature of the cylindrical portion 29 connected to the base portion 27 from rising. As a result, it is possible to suppress heat from being transferred to the elastic body 47 of the damper 41 mounted in the mounting hole 31 of the mounting leg 25.

[0056] Therefore, according to this compressor, while meeting the requirement of attaching the compressor to the mounting target 91 arranged in a limited space in a well-balanced manner, it is possible to suppress thermal degradation of the elastic body 47 of the damper 41.

[0057] In particular, in this compressor, a discharge port 21 and a discharge pipe 23 are provided in the discharge housing 11, and one of the mounting legs 25 is provided at the front portion of the motor housing 13 close to the discharge housing 11. The damper 41 mounted on the mounting leg 25 arranged near the discharge pipe 23 or the like is likely to become hot due to the heat of the high-temperature refrigerant compressed in the compression section 3. In this regard, in this compressor, even for the damper 41 exposed to high temperatures, heat is less likely to be transferred to the elastic body 47, so thermal degradation of the elastic body 47 can be suppressed.

[0058] Also, the connecting portion 55 of the elastic body 47 in the damper 41 is connected in the radial direction between the thin-walled cylindrical portion 51 on the inner peripheral side and the thick-walled cylindrical portion 53 on the outer peripheral side, and has a shape with a long radial connection length. Therefore, if the elastic body 47 in the damper 41 softens due to heat, it is likely to break at the connecting portion 55. In this regard, in this compressor, even when the damper 41 is exposed to high temperatures, the elastic body 47 can be suppressed from softening due to heat, so breakage of the connecting portion 55 can be suppressed.

[0059] Furthermore, in this compressor, the base 27 of the three mounting feet 25 is provided on the motor housing 13 which is less likely to become hotter than the discharge housing 11. Therefore, heat conduction from the motor housing 13 to the base 27 can be suppressed in the three mounting feet 25. Moreover, these bases 27 are provided with heat dissipation holes 33. Therefore, the heat transmitted from the motor housing 13 to the base 27 can be discharged from the heat dissipation holes 33. As a result, heat transfer from the base 27 to the cylindrical portion 29, and thus to the elastic body 47 of the damper 41, can be further suppressed.

[0060] (Embodiment 2) The compressor of Embodiment 2 changes the shape of each mounting foot 25 in the compressor of Embodiment 1.

[0061] As shown in FIG. 7, a plurality of heat dissipation fins 35 are provided on the base 27 of each mounting foot 25 in this compressor instead of the heat dissipation holes 33. Each heat dissipation fin 35 has a strip shape and is integrally formed on the side surface of the base 27.

[0062] In this compressor, since a plurality of heat dissipation fins 35 are provided on the base 27 of each mounting foot 25, the heat transmitted from the motor housing 13 to the base 27 can be discharged from the heat dissipation fins 35. As a result, heat transfer from the base 27 to the cylindrical portion 29, and thus to the elastic body 47 of the damper 41, can be further suppressed.

[0063] Other configurations and effects are the same as those of Embodiment 1.

[0064] (Embodiment 3) The compressor of Embodiment 3 changes the shape of the mounting foot 25 provided at the front of the motor housing 13 among the three mounting feet 25 in the compressor of Embodiment 1.

[0065] As shown in FIG. 8, in this compressor, the base 27 of the mounting foot 25 provided at the front of the motor housing 13 among the three mounting feet 25 has a first base 271 made of metal, a second base 272 made of metal, and a rubber heat insulator 273.

[0066] The first base portion 271 is integrally formed on the outer peripheral surface 13a of the motor housing 13 at the front portion of the motor housing 13. The first base portion 271 extends straight toward the outer peripheral side so as to be substantially orthogonal to the outer peripheral surface 13a of the motor housing 13. The first base portion 271 is provided with a heat dissipation hole 33 penetrating in the thickness direction.

[0067] The second base portion 272 is fixed to the side surface of the tip end side of the first base portion 271 with bolts 274. The second base portion 272 extends substantially parallel along the outer peripheral surface 1a of the housing 1 from the rear to the front. The tip end of the second base portion 272 extends to the vicinity of the gasket 17, and a cylindrical portion 29 is integrally connected to the tip end thereof.

[0068] The heat insulator 273 is disposed between the first base portion 271 and the second base portion 272 and is sandwiched between the first base portion 271 and the second base portion 272.

[0069] In the mounting leg 25 provided at the front portion of the motor housing 13, the entire cylindrical portion 29 is disposed outside the outer peripheral side of the discharge housing 11. More specifically, the entire cylindrical portion 29 is disposed on the discharge housing 11 side rather than the gasket 17 in the front-rear direction. For this reason, the entire mounting hole 31 formed in the cylindrical portion 29 is also disposed outside the outer peripheral side of the discharge housing 11, and the central axis O of the mounting hole 31 is disposed on the discharge housing 11 side in front of the virtual line L indicating the position of the gasket 17 in the front-rear direction.

[0070] In this compressor, in the mounting leg 25 provided at the front portion of the motor housing 13, the entire damper 41 mounted in the mounting hole 31 of the mounting leg 25 is disposed outside the outer peripheral side of the discharge housing 11. For this reason, thermal deterioration of the elastic body 47 of this damper 41 is more a concern, but the heat insulator 273 interposed between the first base portion 271 and the second base portion 272 can suppress heat from being transmitted from the first base portion 271 to the second base portion 272, so that thermal deterioration of this elastic body 47 can be effectively suppressed.

[0071] Also, in this compressor, in the mounting leg 25 provided at the front portion of the motor housing 13, a second base portion 272 as a separate component is connected to a first base portion 271 integrally formed with the motor housing 13. Therefore, the degree of freedom in the shape of the base portion is high, and it is easy to cope with the mounting mode of the compressor.

[0072] Other configurations and effects are the same as those in the first embodiment.

[0073] As described above, the present invention has been described with reference to the first to third embodiments. However, the present invention is not limited to the above-described first to third embodiments, and it goes without saying that the present invention can be appropriately modified and applied without departing from the gist thereof.

[0074] In the first to third embodiments, the damper 41 having the elastic body 47 having a predetermined shape so as to have a predetermined resonance frequency is adopted as the vibration isolation member. However, the present invention is not limited to this, and various vibration isolation members having an elastic body that is easily thermally deteriorated can be used.

[0075] The following technical ideas can be extracted from the disclosure of the specification and drawings.

[0076] (Appendix 1) A compression section for compressing a fluid, A housing for housing the compression section, A mounting leg protruding from the outer surface of the housing and having a mounting hole, A vibration isolation member mounted in the mounting hole, comprising: The vibration isolation member has an outer cylinder held on the inner peripheral surface of the mounting hole, an inner cylinder disposed inside the outer cylinder and through which a fastening member for fastening the mounting leg to an object to be mounted is inserted, and an elastic body disposed between the outer cylinder and the inner cylinder and connecting the two. The housing has a first housing having a discharge port for discharging the fluid compressed by the compression section to the outside, and a second housing adjacent to the first housing with a sealing material interposed therebetween. The mounting feet have a base portion provided on the outer peripheral surface of the second housing, and a cylindrical portion connected to the base portion and having the mounting holes formed therein. The compressor is characterized in that at least a part of the mounting holes is disposed on the outer peripheral side of the first housing and closer to the first housing than the sealing material.

[0077] (Appendix 2) The compressor according to Appendix 1, wherein the central axis of the mounting hole is disposed closer to the first housing than the sealing material.

[0078] (Appendix 3) The compressor according to Appendix 1 or 2, wherein the base portion is provided with heat dissipation holes.

[0079] (Appendix 4) The compressor according to any one of Appendices 1 to 3, wherein the base portion is provided with heat dissipation fins.

Industrial Applicability

[0080] The present invention can be used in an air conditioner for a vehicle or the like.

Explanation of Reference Numerals

[0081] 1…Housing 3…Compression section 11…Discharge housing (first housing) 13…Motor housing (second housing) 17…Gasket (sealing material) 21…Discharge port 25…Mounting feet 27…Base portion 29…Cylindrical portion 31…Mounting holes 31a…Inner peripheral surface 33…Heat dissipation holes 35…Heat dissipation fins 41…Damper (vibration isolation member) 43…Outer cylinder 43a…Outer peripheral surface 45…Inner cylinder 47…Elastomer 91...Mounting target 93...Fastening member

Claims

1. a compression part that compresses a fluid; a housing that houses the compression part; mounting legs that protrude from the outer surface of the housing and have mounting holes; a vibration-proof member mounted in the mounting holes, and the vibration-proof member has an outer cylinder held on the inner peripheral surface of the mounting hole, an inner cylinder disposed inside the outer cylinder through which a fastening member for fastening the mounting leg to an object to be mounted is inserted, and an elastic body disposed between the outer cylinder and the inner cylinder to connect the two; the housing has a first housing having a discharge port for discharging the fluid compressed by the compression part to the outside, and a second housing adjacent to the first housing with a sealing material interposed therebetween; the mounting leg has a base provided on the outer peripheral surface of the second housing, and a cylindrical portion connected to the base and in which the mounting hole is formed; A compressor, characterized in that at least a part of the mounting hole is located outside the outer peripheral side of the first housing and on the first housing side of the sealing material.

2. The compressor according to claim 1, wherein a central axis of the mounting hole is located on the first housing side of the sealing material.

3. The compressor according to claim 1 or 2, wherein the base is provided with heat dissipation holes.

4. The compressor according to claim 1 or 2, wherein the base is provided with heat dissipation fins.

Citation Information

Patent Citations

  • JP1988098490U