Compressor

Abstract

To provide a compressor capable of restraining thermal deterioration of an elastic body of a vibration control member mounted to a fitting foot.SOLUTION: The compressor comprises: a compression part 3 for compressing fluid; a housing 1 for housing the compression part 3; a fitting foot 25 projecting from an outer face of the housing 1 and having a mounting hole 31; and a vibration control member 41 mounted to the mounting hole 31. The vibration control member 41 has: an outer cylinder 43 held on an inner periphery 31a of the mounting hole 31; an inner cylinder 45, which is arranged inside the outer cylinder 43 and in which a fastening member 93 for fastening the fitting foot 25 to a mounting object 91 is inserted; and an elastic body 47 arranged between the outer cylinder 43 and the inner cylinder 45 and coupling them. A protrusion part 33 contacting the other of the inner periphery 31a of the mounting hole 31 and an outer periphery 43a of the outer cylinder 43 is provided to one of the inner periphery 31a and the outer periphery 43a.SELECTED DRAWING: Figure 4

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 section, a housing, mounting feet, and vibration isolation members.

[0003] The compression section compresses a fluid. The housing houses the compression section. 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 operation of the compressor, vibrations generated in the compression section 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 section 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 conventional compressor described above, during the operation of the compressor, since the fluid compressed in the compression part becomes high temperature, the heat of the high temperature fluid is transmitted to the vibration isolator through the housing that houses the compression part, 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 temperature for a long time, the vibration isolation characteristics are likely to deteriorate.

[0008] The present invention has been made in view of the above-described conventional situation, and an object to be solved is to provide a compressor capable of suppressing heat deterioration of the elastic body of the vibration isolator attached to the mounting leg.

Means for Solving the Problems

[0009] The compressor of the present invention includes a compression part that compresses a fluid, a housing that houses the compression part, a mounting leg that protrudes from the outer surface of the housing and has a mounting hole, and a vibration isolator attached to the mounting hole, The vibration isolator 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 the object to be mounted is inserted, and an elastic body disposed between the outer cylinder and the inner cylinder and connecting the two. On one of the inner peripheral surface of the mounting hole and the outer peripheral surface of the outer cylinder, a convex portion that abuts on the other of the inner peripheral surface and the outer peripheral surface is provided.

[0010] In the compressor of the present invention, the outer cylinder of the vibration isolator is held on the inner peripheral surface of the mounting hole of the mounting leg, and on at least one of the inner peripheral surface of the mounting hole and the outer peripheral surface of the outer cylinder, a convex portion that abuts on the other of the inner peripheral surface of the mounting hole and the outer peripheral surface of the outer cylinder is provided. For this reason, the inner peripheral surface of the mounting hole and the outer peripheral surface of the outer cylinder are in contact with each other through the convex portion, while they are non-contact in the vicinity of the convex portion. As a result, the contact area between the inner peripheral surface of the mounting hole and the outer peripheral surface of the outer cylinder decreases, so that heat transfer from the mounting leg to the outer cylinder, and thus heat transfer from the mounting leg to the elastic body disposed inside the outer cylinder can be suppressed.

[0011] Therefore, according to the compressor of the present invention, it is possible to suppress the thermal deterioration of the elastic body of the vibration isolator attached to the mounting feet.

[0012] Preferably, a convex portion is provided on the inner peripheral surface of the mounting hole.

[0013] In this case, by forming the convex portion on the inner peripheral surface of the mounting hole when forming the mounting hole in the mounting foot, it becomes easy to form the convex portion. Further, when forming a convex portion on the outer peripheral surface of the outer cylinder of the vibration isolator, it is necessary to perform alignment so that the convex portion is at a desired position in the circumferential direction when inserting the vibration isolator into the mounting hole. However, since the convex portion is formed on the inner peripheral surface of the mounting hole, such alignment is not necessary.

[0014] Preferably, the convex portion extends in the axial direction of the mounting hole.

[0015] In this case, it is possible to suppress the vibration isolator held in the mounting hole from tilting with respect to the axial direction.

[0016] Preferably, a plurality of convex portions are provided at intervals in the circumferential direction of the mounting hole.

[0017] In this case, it is possible to suppress the vibration isolator held in the mounting hole from being eccentric in the mounting hole.

[0018] Preferably, a plurality of ridges extending in the axial direction of the mounting hole and arranged at intervals in the circumferential direction of the mounting hole are provided at the protruding tip of the convex portion.

[0019] In this case, since the number of contact portions between the inner peripheral surface of the mounting hole and the outer peripheral surface of the outer cylinder, that is, the surface pressure peaks between the inner peripheral surface of the mounting hole and the outer peripheral surface of the outer cylinder increase by the number of ridges, it is advantageous for suppressing the relative rotation of the vibration isolator with respect to the mounting hole.

[0020] Preferably, on the other of the inner peripheral surface of the mounting hole and the outer peripheral surface of the outer cylinder, a resistance portion for increasing the sliding resistance with the convex portion in the circumferential direction of the mounting hole is provided.

[0021] In this case, since the sliding resistance in the circumferential direction increases due to the resistance portion between the inner peripheral surface of the mounting hole and the outer peripheral surface of the outer cylinder, relative rotation of the vibration isolation member with respect to the mounting hole can be suppressed.

[0022] The resistance portion preferably includes a plurality of groove portions that extend in the axial direction of the mounting hole and are arranged at intervals in the circumferential direction of the mounting hole.

[0023] In this case, the force that causes the vibration isolation member to relatively rotate with respect to the mounting hole can be reduced by the sliding resistance when the convex portion passes through the groove portion in the circumferential direction. Therefore, relative rotation of the vibration isolation member with respect to the mounting hole can be suppressed.

[0024] The housing may have a discharge port for discharging the fluid compressed in the compression portion to the outside. Further, a plurality of mounting legs may be provided on the outer surface of the housing. And it is preferable that a vibration isolation member is provided on at least the mounting leg closest to the discharge port among the plurality of mounting legs.

[0025] In this case, thermal degradation of the elastic body in the vibration isolation member closest to the discharge port can be suppressed.

Advantages of the Invention

[0026] According to the compressor of the present invention, thermal degradation of the elastic body of the vibration isolation member mounted on the mounting leg can be suppressed.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

MODE FOR CARRYING OUT THE INVENTION

[0028] Hereinafter, Examples 1 and 2 embodying the present invention will be described with reference to the drawings.

[0029] (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.

[0030] As shown in FIG. 1, the compressor of Example 1 includes a metal housing 1, a compression part 3, an electric motor 5, a drive shaft 7, and an inverter 9. The housing 1 is made of, for example, an aluminum alloy.

[0031] The housing 1 has a discharge housing 11, a motor housing 13, and an inverter housing 15. 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.

[0032] 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 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.

[0033] 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 made of, for example, rubber or synthetic resin.

[0034] 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 forms a bottomed cylindrical shape with the rear side open. 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 forms a bottomed cylindrical shape with the front side open. 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).

[0035] 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).

[0036] 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, a columnar drive shaft 7 extending in the front-rear direction is accommodated inside the motor housing 13. The drive shaft 7 is rotatably supported around the drive shaft center by the bottom wall of the motor housing 13 and the shaft support member.

[0037] The motor housing 13 is provided with a suction port that communicates the inside and the outside of the motor housing 13. The suction port is connected to the evaporator by a suction pipe. Note that the illustration of the suction port, the suction pipe, and the evaporator is omitted.

[0038] The compression section 3 is accommodated on the front side within the motor housing 13. Although not shown, the compression section 3 has a fixed scroll and a swivel scroll arranged opposite to the fixed scroll. The compression section 3 changes the volume of the compression chamber formed between the fixed scroll and the swivel scroll by the rotation of the swivel scroll due to the rotation of the drive shaft 7. Thereby, the compression section 3 compresses the refrigerant sucked into the motor housing 13 from the suction port and discharges the compressed refrigerant into 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.

[0039] The electric motor 5 is accommodated on the rear side within the motor housing 13. Although not shown, the electric motor 5 has a cylindrical stator and a rotor arranged inside the stator. The stator is fixed to the inner peripheral surface of the motor housing 13 and is connected to the inverter 9. The drive shaft 7 is fixed to the rotor. The drive shaft 7 is rotated by the rotation of the rotor due to the power supply from the inverter 9 to the stator.

[0040] The inverter 9 is accommodated within the inverter housing 15. Although not shown, 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.

[0041] As shown in FIGS. 1 and 2, the discharge housing 11 and the motor housing 13 are provided with three mounting feet 25. Note that in FIG. 2, two of the three mounting feet 25 are shown. One of the three mounting feet 25 is provided on the discharge housing 11, another one is provided at the rear 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.

[0042] Since the three mounting feet 25 have the same configuration, the configuration of the mounting foot 25 provided on the discharge housing 11 will be described, and the description of the configurations of the remaining two mounting feet 25 will be omitted.

[0043] The mounting foot 25 is made of metal and has a substantially rectangular base portion 27 and a substantially cylindrical tubular portion 29.

[0044] The base portion 27 is integrally formed on the outer peripheral surface 11a of the discharge housing 11 so as to protrude from the outer peripheral surface 11a. Note that the base portions 27 of the remaining two mounting feet 25 are integrally provided on the outer peripheral surface 13a of the motor housing 13 so as to protrude from the outer peripheral surface 13a.

[0045] The tubular portion 29 is connected to the base portion 27. Specifically, the tubular portion 29 is integrally formed at the protruding tip of the base portion 27 that protrudes from the outer peripheral surface 11a of the discharge housing 11.

[0046] As shown in FIG. 3, a mounting hole 31 having a substantially circular cross-section with a central axis O is formed in the tubular portion 29. Three convex portions 33 are formed on the inner peripheral surface 31a of the mounting hole 31. The three convex portions 33 are arranged at equal intervals in the circumferential direction of the mounting hole 31. Each convex portion 33 protrudes in a partial arc shape from the inner peripheral surface 31a toward the central axis O in the radially inward direction in the axial view of the mounting hole 31. Each convex portion 33 extends continuously throughout the axial direction of the mounting hole 31 parallel to the central axis O.

[0047] As shown in FIGS. 1 and 4, dampers 41 are mounted in the mounting holes 31 of each mounting leg 25. The damper 41 is an example of the "vibration isolation member" in the present invention. The resonance frequency of this damper 41 is set to a predetermined value by forming the elastic body 47 described later into a predetermined shape. Therefore, when this compressor is mounted on a vehicle, this damper 41 exhibits the effect of reducing vibration transmission in a frequency range equal to or higher than the set resonance frequency.

[0048] In a state where the damper 41 is mounted in the mounting hole 31, the tips of the three convex portions 33 are in contact with the outer peripheral surface of the damper 41, specifically, the outer peripheral surface 43a of the outer cylinder 43 described later. Thereby, 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.

[0049] As shown in FIGS. 5 and 6, the damper 41 has 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 plate 49 are made of, for example, metal or synthetic resin.

[0050] The outer cylinder 43 and the inner cylinder 45 have a common central axis C, and both 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.

[0051] The elastic body 47 is disposed between the outer cylinder 43 and the inner cylinder 45 and connects the two. The elastic body 47 has 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.

[0052] The thin-walled cylindrical portion 51 is formed in a thin film shape and is 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 is 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.

[0053] The four connecting portions 55 are connected to the thin-walled cylindrical portion 51 and the thick-walled cylindrical portion 53 at the axial center positions 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 radial length longer than its axial length.

[0054] The 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.

[0055] When the damper 41 is mounted into the mounting hole 31, for example, an integrated body 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 protruding axially from one side of the mounting hole 31, and the regulating plate 49 is adhered to the axial end face of the inner cylinder 45 protruding axially from the other side of the mounting hole 31.

[0056] 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.

[0057] And in this compressor, the outer cylinder 43 of the damper 41 is held on the inner peripheral surface 31a of the mounting hole 31 of the mounting leg 25, and a convex portion 33 that abuts against the outer peripheral surface 43a of the outer cylinder 43 is provided on the inner peripheral surface 31a of this mounting hole 31. Therefore, while the inner peripheral surface 31a of the mounting hole 31 and the outer peripheral surface 43a of the outer cylinder 43 are in contact via the convex portion 33, they are not in contact in the vicinity of the convex portion 33. As a result, the contact area between the inner peripheral surface 31a of the mounting hole 31 and the outer peripheral surface 43a of the outer cylinder 43 decreases, so that heat transfer from the mounting leg 25 to the outer cylinder 43, and thus heat transfer from the mounting leg 25 to the elastic body 47 disposed inside the outer cylinder 43, can be suppressed.

[0058] Therefore, according to this compressor, thermal degradation of the elastic body 47 of the damper 41 mounted on the mounting leg 25 can be suppressed.

[0059] 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 on this discharge housing 11. The damper 41 mounted on the mounting leg 25 disposed 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 hardly transferred to the elastic body 47, so that thermal degradation of the elastic body 47 can be suppressed.

[0060] 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. For this reason, 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 that breakage of the connecting portion 55 can be suppressed.

[0061] Furthermore, in this compressor, a convex portion 33 is provided on the inner peripheral surface 31a of the mounting hole 31. Therefore, when forming the mounting hole 31 in the mounting leg 25, by forming the convex portion 33 on the inner peripheral surface 31a of the mounting hole 31, it becomes easier to form the convex portion 33. Also, if the convex portion 33 is formed on the outer peripheral surface 43a of the outer cylinder 43, it is necessary to perform alignment so that the convex portion 33 is at a desired position in the circumferential direction when inserting the damper 41 into the mounting hole 31. In this regard, in this compressor, since the convex portion 33 is formed on the inner peripheral surface 31a of the mounting hole 31, there is no need to perform such alignment.

[0062] Also, in this compressor, the convex portion 33 extends over the entire axial direction of the mounting hole 31. Therefore, it is possible to suppress the damper 41 held in the mounting hole 31 from tilting in the axial direction.

[0063] Furthermore, three convex portions 33 are provided at equal intervals in the circumferential direction of the mounting hole 31. Therefore, it is possible to suppress the damper 41 held in the mounting hole 31 from being eccentric within the mounting hole 31.

[0064] (Embodiment 2) The compressor of Embodiment 2 changes the shape of the convex portion 33 of the mounting leg 25 and the shape of the outer cylinder 43 of the damper 41 in the compressor of Embodiment 1.

[0065] As shown in FIG. 7, on the inner peripheral surface 31a of the mounting hole 31 of the mounting leg 25, three convex portions 63 are formed instead of the three convex portions 33. The three convex portions 63 are arranged at equal intervals in the circumferential direction of the mounting hole 31.

[0066] Each convex portion 63 projects in a partial arc shape from the inner peripheral surface 31a toward the central axis O radially inward in a view in the axial direction of the mounting hole 31, and two peak portions 65 are provided at the tip of the projection. Each convex portion 63 extends continuously over the entire axial direction of the mounting hole 31 parallel to the central axis O. Also, the two peak portions 65 of each convex portion 63 extend continuously over the entire axial direction of the mounting hole 31 parallel to the central axis O and are arranged at intervals in the circumferential direction of the mounting hole 31.

[0067] As a result, as shown in FIG. 8, when the damper 41 is mounted in the mounting hole 31, two peak portions 65 of each convex portion 63 are in contact with the outer peripheral surface 43a of the outer cylinder 43 of the damper 41. Thereby, the central axis O of the mounting hole 31 and the central axis C of the damper 41 coincide with each other, and the damper 41 is coaxially held in the mounting hole 31.

[0068] Further, as shown in FIG. 9, a plurality of groove portions 67 are formed on the outer peripheral surface 43a of the outer cylinder 43 of the damper 41. The groove portion 67 is an example of the "resistance portion" in the present invention. In the present embodiment, more than a dozen groove portions 67 are provided at equal intervals in the circumferential direction of the outer peripheral surface 43a. Each groove portion 67 extends continuously in the entire axial direction of the outer peripheral surface 43a in parallel with the central axis C.

[0069] In this compressor, two peak portions 65 are provided at the protruding tip of each convex portion 63. For this reason, since the contact portion between the inner peripheral surface 31a of the mounting hole 31 and the outer peripheral surface 43a of the outer cylinder 43, that is, the surface pressure peak between the inner peripheral surface 31a and the outer peripheral surface 43a increases, it is advantageous for suppressing the relative rotation of the damper 41 with respect to the mounting hole 31.

[0070] Further, in this compressor, a plurality of groove portions 67 that extend in the axial direction of the mounting hole 31 and are arranged at intervals in the circumferential direction of the mounting hole 31 are provided on the outer peripheral surface 43a of the outer cylinder 43. For this reason, since the sliding resistance between the convex portion 63 and the outer cylinder 43 in the circumferential direction of the mounting hole 31 increases, the relative rotation of the damper 41 with respect to the mounting hole 31 can be suppressed.

[0071] As described above, the present invention has been described with reference to the first and second embodiments. However, the present invention is not limited to the above-described first and second embodiments, and it goes without saying that the present invention can be appropriately modified and applied without departing from the spirit thereof.

[0072] In the first and second 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.

[0073] In Embodiments 1 and 2, the convex portions 33 and 63 are provided on the inner peripheral surface 31a of the mounting hole 31. However, the present invention is not limited thereto, and the convex portions 33 and 63 may be provided on the outer peripheral surface 43a of the outer cylinder 43, or the convex portions 33 and 63 may be provided on both the inner peripheral surface 31a of the mounting hole 31 and the outer peripheral surface 43a of the outer cylinder 43.

[0074] In Embodiments 1 and 2, the number of the convex portions 33 and 63 is three. However, the present invention is not limited thereto, and the number of the convex portions 33 and 63 may be one or two or more.

[0075] In Embodiment 2, the number of the ridge portions 65 provided on the convex portion 63 is two. However, the present invention is not limited thereto, and the number of the ridge portions 65 may be three or more.

[0076] In Embodiment 2, a plurality of groove portions 67 are formed as resistance portions on the outer peripheral surface 43a of the outer cylinder 43. However, the present invention is not limited thereto. For example, the outer peripheral surface 43a of the outer cylinder 43 may be roughened. Further, when the convex portions 33 and 63 are provided on the outer peripheral surface 43a of the outer cylinder 43, the inner peripheral surface 31a of the mounting hole 31 may be roughened.

[0077] The following technical ideas can be extracted from the disclosure of the specification, drawings, and the like.

[0078] (Appendix 1) A compression portion that compresses a fluid, A housing that houses the compression portion, A mounting leg that protrudes from the outer surface of the housing and has a mounting hole, A vibration isolation member mounted in the mounting hole, and The vibration isolation member includes 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. A compressor, characterized in that a convex portion that abuts against the other of the inner peripheral surface and the outer peripheral surface is provided on one of the inner peripheral surface of the mounting hole and the outer peripheral surface of the outer cylinder.

[0079] (Appendix 2) The compressor according to Appendix 1, wherein the convex portion is provided on the inner peripheral surface.

[0080] (Appendix 3) The compressor according to Appendix 1 or 2, wherein the convex portion extends in the axial direction of the mounting hole.

[0081] (Appendix 4) The compressor according to any one of Appendices 1 to 3, wherein a plurality of the convex portions are provided at intervals in the circumferential direction of the mounting hole.

[0082] (Appendix 5) The compressor according to any one of Appendices 1 to 4, wherein a plurality of ridge portions that extend in the axial direction of the mounting hole and are arranged at intervals in the circumferential direction of the mounting hole are provided at the protruding tip of the convex portion.

[0083] (Appendix 6) The compressor according to any one of Appendices 1 to 5, wherein a resistance portion for increasing the sliding resistance with the convex portion in the circumferential direction of the mounting hole is provided on the other of the inner peripheral surface and the outer peripheral surface.

[0084] (Appendix 7) The compressor according to Appendix 6, wherein the resistance portion includes a plurality of groove portions that extend in the axial direction of the mounting hole and are arranged at intervals in the circumferential direction.

[0085] (Appendix 8) The housing has a discharge port for discharging the fluid compressed in the compression portion to the outside, a plurality of the mounting feet are provided on the outer surface of the housing, The compressor according to any one of Appendices 1 to 7, wherein the vibration isolation member is provided on at least the mounting foot closest to the discharge port among the plurality of mounting feet.

Industrial Applicability

[0086] The present invention can be used in an air conditioner for a vehicle or the like.

Explanation of Reference Numerals

[0087] 1… Housing 3… Compression part 21… Discharge port 25… Mounting leg 31… Mounting hole 31a… Inner peripheral surface 33, 63… Protrusion 41… Damper (vibration damping member) 43… Outer cylinder 43a… Outer peripheral surface 45… Inner cylinder 47… Elastic body 65… Ridge part 67… Groove part (resistance part) 91… Object to be mounted 93… Fastening member

Claims

1. a compression part that compresses a fluid; a housing that houses the compression part; mounting feet that protrude from the outer surface of the housing and have mounting holes; a vibration isolation member mounted in the mounting holes, comprising: 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 foot 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; a compressor, characterized in that a convex portion that abuts on the other of the inner peripheral surface and the outer peripheral surface is provided on one of the inner peripheral surface of the mounting hole and the outer peripheral surface of the outer cylinder.

2. The compressor according to claim 1, wherein the convex portion is provided on the inner peripheral surface.

3. The compressor according to claim 1 or 2, wherein the convex portion extends in the axial direction of the mounting hole.

4. The compressor according to claim 1 or 2, wherein a plurality of the convex portions are provided at intervals in the circumferential direction of the mounting hole.

5. The compressor according to claim 1 or 2, wherein a plurality of ridge portions that extend in the axial direction of the mounting hole and are arranged at intervals in the circumferential direction of the mounting hole are provided at the protruding tip of the convex portion.

6. The compressor according to claim 1 or 2, wherein a resistance portion that increases the sliding resistance with the convex portion in the circumferential direction of the mounting hole is provided on the other of the inner peripheral surface and the outer peripheral surface.

7. The compressor according to claim 6, wherein the resistance portion comprises a plurality of groove portions that extend in the axial direction of the mounting hole and are arranged at intervals in the circumferential direction.

8. The housing has a discharge port for discharging the fluid compressed by the compression part to the outside; a plurality of the mounting feet are provided on the outer surface of the housing; The compressor according to claim 1 or 2, wherein the vibration isolation member is provided on at least the mounting foot closest to the discharge port among the plurality of mounting feet.

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