JP2008180122A - Vane rotary type compressor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent vibration and noise occurring in a cylinder of a compressor due to compressing action from being transmitted to a front side plate, a back side plate, and a high pressure case, to prevent resonance of the vibration and noise with engine components causing allophone or uncomfortable sound in the cabin of a vehicle through transmission via an air conditioner. <P>SOLUTION: The vane rotary type compressor has a vibration proof seal 22 of vibration isolation seal structure interposed on contact surfaces of the cylinder 1, the front plate 6, and the back plate 7. This configuration allows little transmission of vibration and noise occurring inside the cylinder 1 by compressing action to the front side plate 6, the back side plate 7, and the high pressure case 13, causing no resonance of vibration and noise occurring in the compressor with engine components and having no influence on the inside of the cabin. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a compressor used in an automotive air conditioner or the like.

  Conventionally, this type of vane rotary type compressor is fixed with a plurality of through bolts that pass through a front side plate, a cylinder, a rear side plate, and a high-pressure case, and the sealing performance is held by a packing or an O-ring (for example, , See Patent Document 1).

  FIG. 4 shows a conventional vane rotary compressor described in Patent Document 1. As shown in FIG.

As shown in FIG. 4, the front side plate 101, the O-ring 102, the cylinder 103, the rear side plate 104, the packing 105, and the high pressure case 106 are configured.
JP 2006-022718 A

  However, the conventional configuration has a problem that the vibration / noise of the vane generated by the compression action is transmitted to the cylinder, the front side plate, the rear side plate, and the high pressure case. In other words, in a vane rotary type compressor, the vibration generated by the compression action in the cylinder is transmitted to the front side plate, the rear side plate, and the high pressure case, and the vibration / noise is transmitted to the vehicle side, causing noise and vibration in the vehicle interior. There was a problem of becoming.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a vane rotary type compressor that has a compressor body with low vibration and low noise and high merchantability.

  In order to solve the above-described conventional problems, the vane rotary compressor of the present invention has an anti-vibration seal structure interposed between contact surfaces of a cylinder, a front side plate, and a rear side plate.

  This makes it difficult for vibration and noise generated by the compression action in the cylinder to be transmitted to the front side plate, the rear side plate, and the high pressure case.

  The vane rotary compressor for air conditioning of a vehicle according to the present invention eliminates the influence of noise and vibration transmitted from the compressor body to the vehicle side, and can realize low noise and low vibration in the passenger compartment.

  According to the first aspect of the present invention, the vibration transmission generated by the compression action in the cylinder can be reduced by interposing a vibration-proof structure seal on the contact surfaces of the cylinder, the front side plate, and the rear side plate. The effects of vibration and noise on the can be almost eliminated.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a cross-sectional view of a vane rotary compressor according to a first embodiment of the present invention.

  1 and 2, a substantially cylindrical rotor 2 is accommodated in a cylinder 1 having a cylindrical inner wall, and a part of the outer periphery thereof is accommodated and formed so as to form a minute gap with the inner wall of the cylinder 1 and is rotatably supported. ing. A plurality of (three in the illustrated embodiment) vane slots 3 are provided in the rotor 2 at equal intervals in the circumferential direction, and vanes 4 are slidably inserted into the vane slots 3, respectively. A drive shaft 5 is integrally coupled to the rotor 2, and the rotor 2 is rotated by rotating the drive shaft 5. Both front and rear end faces of the cylinder 1 are closed by joining a front side plate 6 and a rear side plate 7, and a working chamber 8 for compressing refrigerant gas is formed inside the cylinder 1.

  Further, the space of the back of the vane 4 divided by the vane slot 3, the front side plate 6 and the rear side plate 7 constitutes the vane back pressure portion 20.

  A discharge valve 11 is disposed in the working chamber 8 at the suction port 9 and the discharge port 10. The lower part in the high-pressure case 13 constitutes an oil storage part 13a. In the oil storage part 13a, the lubricating oil contained in the gas refrigerant compressed in the working chamber 8 in the form of mist is separated by the collision type oil separating means. A gas discharge port 14 for discharging a compressed fluid (refrigerant gas) from the high pressure case 13 to the system cycle of the air conditioner is formed in the upper portion of the high pressure case 13. A vane back pressure applying device 15 is provided above the high pressure case 13 of the rear side plate 7. The vane back pressure applying device 15 has a lubricating oil supply port 16 so as to be substantially perpendicular to the lubricating oil surface when the compressor is stationary. Is provided. Further, a vibration-proof seal 22 having a vibration-proof structure is interposed before and after the cylinder.

  About the compressor comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When power is transmitted from a driving source such as an engine and the drive shaft 5 and the rotor 2 rotate clockwise in FIG. 2, the compressed gas fluid pushes up the discharge port 10 and the discharge valve 11 to enter the high pressure case 13. It flows in and is discharged from the gas discharge port 14 to the outside of the compressor (during the system cycle of the air conditioner). At this time, the lubricating oil separated at the upper part of the high-pressure case 13 is dropped and stored in the oil storage part 13a.

  Then, the lubricating oil accumulated in the oil storage section 13 a flows in from the oil supply supply port 16, passes through the back pressure applying device 15, passes through the lubricating oil path 18, and is supplied to the vane back pressure section 20. Collide and press against the inner wall. At that time, vibration and noise occur. However, vibration and noise transmission to the front side plate 6, the rear side plate 7, and the high-pressure case 13 is reduced by a vibration-proof seal 22 having a vibration-proof structure interposed between the cylinder and the front and rear side plates. As a result, there is almost no influence of vibration and noise on the vehicle side, and there is almost no resonance with the engine and unpleasant noise in the passenger compartment.

  The anti-vibration seal material used in the present invention provides a sealing effect and an anti-vibration effect, and there is an elastic body or a metal body disposed inside the elastic body and a metal disposed outside the elastic body. .

  FIG. 3 shows an example of an anti-vibration seal 22 used in the present invention, in which an O-ring and an anti-vibration structure are integrated. The anti-vibration structure has a structure that is in contact with a flat portion corresponding to a seat other than the O-ring portion and absorbs vibration by a rubber protrusion.

  As described above, in this embodiment, the vibration and noise propagation to the front side plate, the rear side plate, and the high-pressure case is reduced by interposing the vibration-proof seal of the vibration-proof structure between the cylinder and the front and rear side plates. It is possible to provide a highly productive product that hardly hears resonance with the engine and unpleasant noise in the passenger compartment.

  As described above, the vane rotary compressor according to the present invention can reduce the propagation of vibration and noise to the front side plate, the rear side plate, and the high-pressure case. It can be applied to other uses.

Sectional drawing of the compressor in Embodiment 1 of this invention 1 is a longitudinal sectional view of a cylinder portion in FIG. 1 of a compressor according to the present invention. Cross section of anti-vibration seal Sectional view of a conventional compressor

Explanation of symbols

1 cylinder 2 rotor 3 vane slot 4 vane 5 drive shaft 6 front side plate 7 rear side plate 8 working chamber 9 suction port 10 discharge port 11 discharge valve 13 high pressure case 13a oil storage unit 14 gas discharge port 15 vane back pressure device 16 oil supply port 18 Lubricating oil path 20 Vane back pressure part 22 Anti-vibration seal

Claims (1)

A cylinder having a cylindrical hollow portion therein, a substantially cylindrical rotor in which at least a part of the outer peripheral surface is rotatably disposed close to the inner wall surface of the cylinder, and the rotor is rotated. A rotary drive shaft for driving, a front side plate and a rear side plate for closing the opening at both ends of the cylinder and rotatably supporting the rotary drive shaft; A tip abuts against the inner wall surface of the cylinder, a vane partitioning at least a suction space and a discharge space into a working space formed between the cylinder and the rotor, a suction hole communicating with the suction space, and a communication with the discharge space In the vane rotary type compressor provided with the discharge hole, an anti-vibration seal structure is interposed between contact surfaces of the cylinder and the front side plate and the rear side plate. Nrotari type compressor.

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