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Compressor

A technology for compressors and compression chambers, applied in the field of compressors, can solve problems such as wear of the movable scroll, failure of the pump body to fit tightly, leakage, etc., to ensure the sealing of the pump body and avoid the wear and tear of the back of the movable scroll Effect

Pending Publication Date: 2019-02-22
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a compressor to solve the problem that the orbiting scroll of the existing compressor is prone to wear under heavy load conditions, and the pump body cannot be tightly fitted under light load conditions, resulting in leakage

Method used

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Experimental program
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Effect test

Embodiment 1

[0033] combined with Figure 1-3 As shown (the direction of the arrow in the figure is the airflow direction), this embodiment provides a compressor, including: head cover 1, fixed scroll 2, movable scroll 5, bracket assembly 6, casing 7, etc. part.

[0034] The casing 7 of this embodiment is connected with the machine head cover 1 to form a cavity, and an air intake cavity is formed in the cavity; the fixed scroll 2, the movable scroll 5 and the bracket assembly of this embodiment 6 is installed in the casing 7, wherein the movable scroll 5 is installed between the fixed scroll 2 and the bracket assembly 6, and a part of the fixed scroll 2 can abut against the movable scroll 5, and the movable scroll A part of the rotating disk 5 can abut against the support assembly 6 , and the movable scroll 5 can float between the fixed scroll 2 and the support assembly 6 along the left-right direction in the figure.

[0035] The compression chamber of this embodiment is formed between t...

Embodiment 2

[0047] The only difference between this embodiment and Embodiment 1 is that the structural form of the adjustment mechanism is different. Figure 4-6 As shown, the adjustment channel 13 of this embodiment is the same as that of the above-mentioned embodiment, so its specific structure will not be described in this embodiment.

[0048] Specifically, the regulating valve of this embodiment includes a valve body 10 and a pressure regulating member; both ends of the valve body 10 and the regulating channel 13 respectively form a first space 21 and a second space 22, and the pressure regulating member communicates with the first space 21 and the second space respectively. Two spaces 22, and by adjusting the pressure of the first space 21 and the second space 22, the valve body 10 moves in the adjustment channel 13 to control the first exhaust hole 16 and the first back pressure hole 14 / second back pressure hole 15.

[0049] Specifically, the valve body 10 of this embodiment includ...

Embodiment 3

[0052] The only difference is that the structural form of the adjustment mechanism is different, combined with the attached Figure 7-9 As shown, the adjustment channel 13 of this embodiment is the same as that of the above-mentioned embodiment, so its specific structure will not be described in this embodiment.

[0053] Specifically, the regulating valve of this embodiment includes a coil 29, a plunger 8, an elastic member 9 and a valve body 10, wherein the plunger 8, the elastic member 9 and the valve body 10 are connected in sequence, and the coil 29 is sleeved outside the elastic member 9 The plunger 8 is fixedly installed in the regulating channel 13 and is tightly connected with the regulating channel 13; the coil 29 can absorb the valve body 10 by turning on and off the power, so that the valve body 10 can move in the regulating channel 13 to control the conduction of the valve body 10. A vent hole 16 and the first back pressure hole 14 / the second back pressure hole 1...

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Abstract

The invention discloses a compressor. The compressor comprises an air inlet cavity, a compression cavity, a middle pressure cavity, a high-pressure buffering cavity and a back pressure adjusting mechanism, wherein the compression cavity is formed between a movable vortex disc and a fixed vortex disk, the compression cavity comprises a first compression cavity and a second compression cavity, the inner pressure of the first compression cavity is larger than the inner pressure of the second compression cavity; the back pressure adjusting mechanism controls the middle pressure cavity to be in communication with the first compression cavity or the second compression cavity. On the basis of an existing scroll compressor structure, the back pressure adjusting mechanism is arranged, the adjustingstructure is used for controlling the pressure of the middle pressure cavity in the back of the fixed disk and the switching between the first compression cavity and the second compression cavity according to the pressure difference between the exhaust pressure and the suction pressure or directly the exhaust pressure, so that the sealing of a pump body under the light-load working condition is guaranteed, and the problem of back abrasion of the fixed vortex disk under heavy load working conditions is avoided.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a compressor. Background technique [0002] The scroll compressor is a volumetric compression compressor. The compression part is composed of a moving scroll and a fixed scroll. The moving scroll is in close contact with the axial gas force and the back pressure of the fixed scroll. On the bracket, affected by the overturning moment at the same time, the pressing force between the orbiting scroll and the bracket changes continuously under different rotation angles of the crankshaft. [0003] However, under heavy load conditions in existing scroll compressors, the pressing force between the movable scroll and the stationary disk, and between the movable scroll and the bracket is too large, and the position on the back of the movable disk corresponding to the maximum overturning moment is prone to failure. wear; and under light load conditions, the back pressure is too small, ...

Claims

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Application Information

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IPC IPC(8): F04C18/02F04C28/24
CPCF04C18/0215F04C28/24
Inventor 康小丽魏会军胡余生陈肖汕刘韵李雪峰
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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