Variable-speed compressor and air conditioner

Abstract

The invention relates to the technical field of compressors, in particular to a variable-speed compressor. The variable-speed compressor comprises a shell, a pump body assembly arranged below the motor, a liquid storage tank communicating with the shell, a first transmission mechanism used for transmitting motor power, and a second transmission mechanism correspondingly arranged with the first transmission mechanism in a transmission mode; and the first transmission mechanism and the second transmission mechanism are in variable transmission through at least one third transmission mechanism arranged on the inner wall of the shell. According to the variable-speed compressor and the air conditioner, two driven gears with different tooth numbers are arranged in the second transmission mechanism, meanwhile, locking assemblies are arranged in the driven shafts, high-low pressure cold medium is sprayed inside the locking assemblies through injection pipes, locking or unlocking of the two driven gears can be flexibly achieved, one of the driven gears is selected to be connected with the third transmission mechanism for transmission, the speed change of the compressor is achieved, then thepower consumption of the compressor is reduced, the cost is low, and the volume fraction and the mechanical efficiency are high.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a speed-variable compressor and an air conditioner. Background technique [0002] A compressor is a driven fluid machine that elevates low-pressure gas to high-pressure gas, and is the heart of the refrigeration system. It inhales low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle. Compressors include reciprocating compressors, rotary compressors, axial compressors, jet compressors, screw compressors and other types according to different implementation methods. At present, the rotary compressor needs to change the cooling capacity of the compressor. One way is to use frequency conversion technology to change the speed of the compressor through frequency con...

AI Technical Summary

Problems solved by technology

However, the volumetric efficiency and mechanical efficiency of the compressor using the variable capacity technology are low. Compared with the frequency conversion method of changing the speed, the variable capacity method is difficult to meet the needs of use, and the cost of the compressor using the frequency conversion technology is relatively high.

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