Capacity changing device for vortex type compressor

Abstract

The invention is about a capacity changing device of scroll compressor, comprising a scroll for composing the compressing chamber, a static scroll disk fixed in the casing forming more than one side path from the compressing chamber to the outside; an air exhaust regulating valve arranged in the middle of the fixed side path for switching it; a valve controlling part for controlling the open-close of the air exhaust regulating valve connected to it by wires; and a dynamic scroll disk connected to the electric mechanism formed with a scroll on one side for gearing with the scroll of the static scroll disk to form the compressing chamber and formed with more than one side path for periodically connected to the fixed side path out let. The invention can reduce the manufacturing cost of the scroll compressor with variable capacity.

Description

Technical field [0001] The present invention belongs to a scroll compressor, and particularly relates to a capacity changing device of a scroll compressor that bypasses a part of compressed gas in a compression chamber for capacity adjustment. Background technique [0002] Generally, a compressor is a machine that converts mechanical energy into the compression energy of a compressive fluid, and can be generally divided into reciprocating compressors, scroll compressors, centrifugal compressors, and sliding vane compressors. [0003] Scroll compressors are different from reciprocating compressors in which pistons reciprocate linearly, and are the same as centrifugal or sliding vane compressors that use a rotating body to suck, compress, and discharge gas. [0004] Most of such scroll compressors are used in air conditioners, but recently, in response to the multi-functionalization of air conditioners, there is a trend of requiring scroll compressors that can change the capacity. ...

AI Technical Summary

Problems solved by technology

[0011] However, according to the use of the air conditioner, the capacity of the compressor should be adjusted from low capacity to high capacity or from high capacity to low capacity. At this time, the scroll compressor usually uses a variable frequency motor and utilizes the addition and subtraction of the movable scroll ( 5) The rotation speed conversion method has a wide range of variable capacity and excellent performance, but because of the use of an inverter motor, there is a problem that the manufacturing cost of the compressor will increase excessively

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