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scroll compressor

A scroll compressor and frame technology, applied in the field of compressors, can solve the problems of wear of sliding bearings and thrust bearings, affecting the life of the scroll compressor, complicated operating conditions of the scroll compressor, etc., so as to prolong the service life. Effect

Active Publication Date: 2020-01-10
GUANGDONG MIDEA ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sliding bearings and thrust bearings are lubricated with refrigeration oil in the oil circuit design of scroll compressors, but due to the complicated operating conditions of scroll compressors, sliding bearings and thrust bearings are prone to insufficient supply of refrigeration oil, especially In the state of high-speed rotation of the crankshaft, it is easy to cause abnormal wear of the sliding bearing and the thrust bearing, which in turn affects the life of the scroll compressor

Method used

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Embodiment 1

[0094] Such as Figure 1-Figure 22 As shown, the scroll compressor 100 of the embodiment of the present invention includes: crankshaft 4, movable scroll 1 main frame 2, sub-frame 3, first sliding bearing 5, second sliding bearing 6, third sliding bearing 7 and Thrust bearing 8.

[0095] Such as Figure 1-Figure 4 , Figure 5-Figure 7 , Figure 23 as well as Figure 24 As shown, the crankshaft 4 includes an eccentric portion 41 , a main shaft portion 42 and a counter shaft portion 43 . A first sliding bearing 5 is provided between the eccentric portion 41 of the crankshaft 4 and the movable scroll 1 of the scroll compressor 100, and a second sliding bearing 5 is provided between the main shaft portion 42 of the crankshaft 4 and the main frame 2 of the scroll compressor 100. Bearing 6, the 3rd slide bearing 7 is arranged between the subshaft portion 43 of crankshaft 4 and the mainframe 2 of scroll compressor 100, in addition, on the lower end surface of scroll compressor 10...

Embodiment 2

[0103] The structure of this embodiment is substantially the same as that of Embodiment 1, wherein the same components use the same reference numerals, such as Figure 23-Figure 27As shown, the only difference is that the first magnetic piece 411, the third magnetic piece 421 and the fifth magnetic piece 431 arranged on the eccentric portion 41 of the crankshaft 4, the main shaft portion 42 and the secondary shaft portion 43 are bar magnets, and the bar magnets The cross-sectional shape of the crankshaft 4 is rectangular. In addition, the cross-sectional shapes of the first fitting groove 412, the third fitting groove 422, and the fifth fitting groove 432 provided on the eccentric portion 41, the main shaft portion 42, and the countershaft portion 43 of the crankshaft 4 are: It is rectangular, and the bar magnet and the fitting groove are installed by interference fit.

[0104] Such as Figure 23-Figure 27 As shown, the first fitting groove 412, the third fitting groove 422, ...

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Abstract

The invention discloses a scroll compressor. The scroll compressor comprises a crankshaft having an eccentric portion on which a first magnetic member is disposed, a movable scroll sleeving on the eccentric portion and provided with a second magnetic piece opposite to the first magnetic piece, wherein the end of the first magnetic piece opposite to the second magnetic piece and the end of the second magnetic piece opposite to the first magnetic piece have the same polarity, and a first sliding bearing sleeving the eccentric portion and located between the eccentric portion and the movable scroll. Through use of the first magnetic member and the second magnetic member, based on the homopolar repulsion of the first magnetic member and the second magnetic member, the movable scroll drives the first sliding bearing to move far away from the eccentric portion and a gap between the first sliding bearing and the eccentric portion is formed so that pivoting friction-caused abnormal wear of the first sliding bearing and the crankshaft under the condition of lubricating oil deficiency is avoided and a service life is further prolonged.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a scroll compressor. Background technique [0002] In the related art, a scroll compressor is provided with sliding bearings at the joints between the crankshaft, the main frame, the subframe and the movable scroll, and a thrust bearing at the bottom of the subframe to support the entire shafting. Sliding bearings and thrust bearings are lubricated with refrigeration oil in the oil circuit design of scroll compressors. However, due to the complicated operating conditions of scroll compressors, sliding bearings and thrust bearings are prone to insufficient supply of refrigeration oil, especially When the crankshaft rotates at a high speed, it is easy to cause abnormal wear of the sliding bearing and the thrust bearing, which in turn affects the life of the scroll compressor. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/02F04C29/00
CPCF04C18/0223F04C29/00F04C2240/80F04C2270/165
Inventor 吴骑峰沈宝生张康刘树清
Owner GUANGDONG MIDEA ENVIRONMENTAL TECH CO LTD