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Scroll compressor provided with anti-rotation mechanism

A scroll compressor and anti-rotation technology, applied in the field of scroll compressors, can solve the problems of loss of anti-rotation effect, difficult verticality control, stuck and other problems

Inactive Publication Date: 2012-12-05
SANDEN HUAYU AUTOMOTIVE AIR CONDITIONING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the short pins, it is difficult to control the verticality during press-fitting. If any one of the two pins is tilted, the distance between the two pins will change, and the rotation radius of the anti-rotation mechanism will change, resulting in loss of anti-rotation effect or jamming; and in the above It can also be seen in the patent that the wall thickness between the pin hole 39 and the central hole 22a of the front cylinder head is small, so the material on the wall around the pin hole is easily damaged during the press-fitting process

Method used

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  • Scroll compressor provided with anti-rotation mechanism
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  • Scroll compressor provided with anti-rotation mechanism

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Such as image 3 As shown, the casing of the scroll compressor is equipped with a drive mechanism and a compression mechanism.

[0024] The shell is usually made of aluminum alloy material, used to install and accommodate the drive mechanism, compression mechanism, etc., and fixed to the external mechanism. A common scroll compressor casing includes a front cylinder head 1, a cylinder body 2, a rear cylinder head 3, etc., and the cylinder body 2 can be integrated with the static scroll. The housing of the electric scroll compressor includes a motor cylinder, an intermediate cylinder supporting the drive shaft, a cylinder for accommodating the scroll, a rear cover, etc. (not shown in the figure).

[0025] The driving mechanism converts the torque from the outside into the power to make the movable scroll 10 run eccentrically around the centerline 01 of the drive shaft. One end of the drive shaft 15 protrudes from the crank 16 , and the center line 02 of the crank 16 de...

Embodiment 2

[0031] Such as Figure 5 As shown, the difference from Embodiment 1 is that the pin hole is a threaded straight hole, and the middle end surface 31C of the anti-rotation pin is supported by the pin hole opening 4D.

[0032] The anti-rotation mechanism in the above embodiment uses a ring to limit the relative rotation radius of two anti-rotation pins, which is used to illustrate the cooperation relationship of threaded connection. At present, there are many forms of anti-rotation mechanism involving pins and housings or scrolls. This connection method can be used for the fixing of the disk.

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Abstract

The invention discloses a scroll compressor provided with an anti-rotation mechanism capable of accurately controlling verticality for installation of a pin, reducing an installation error and preventing deformation of materials near a pinhole. The scroll compressor comprises a shell, a movable scroll plate and a static scroll plate which are engaged with each other, a drive shaft capable of driving the movable scroll plate to operate around an axis, and an anti-rotation mechanism, the anti-rotation mechanism comprises a pinhole fixed on at least one of the side of the shell and the side of the movable scroll plate, and an anti-rotation pin fixed in the pinhole, and the scroll compressor is characterized in that the anti-rotation pin is connected with the pinhole through a screw thread.

Description

technical field [0001] The invention relates to a scroll compressor with an anti-rotation mechanism. Background technique [0002] The scroll compressor forms multiple compression chambers between the fixed scroll and the movable scroll. The main shaft drives the movable scroll to rotate eccentrically. Each compression chamber moves from the radially outer side to the inner side and gradually shrinks to compress the gas in it. The movable scroll has a tendency to rotate around its own axis during motion, and if its rotation angle is too large, it will engage with the scroll of the fixed scroll. [0003] In order to prevent the movable scroll from rotating around its own axis, one of the existing technologies, US Patent No. 5,807,089, provides an anti-rotation mechanism, such as figure 1 As shown, it includes a plurality of groups of pins 41 press-fitted on the front cylinder head and pins 40 on the movable scroll 21 in an annular distribution, and a ring 42 sleeved outside ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/02
Inventor 叶伯兴钟民先
Owner SANDEN HUAYU AUTOMOTIVE AIR CONDITIONING CO LTD
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