A pump body assembly, compressor and air conditioner

By designing a pump body assembly with a rotatable pressure relief channel and a swivel in the compressor, stepless adjustment of the compression volume is achieved, solving the problem of frequent starting and stopping of the variable frequency compressor under low load, and improving the stability and efficiency of the air-conditioning system.

CN115875264BActive Publication Date: 2025-10-17GREE ELECTRIC APPLIANCE INC OF ZHUHAI
5 Cites 0 Cited by

Patent Information

Application Number
CN202211647263.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-21
Publication Date
2025-10-17
Estimated Expiration
2042-12-21

AI Technical Summary

Technical Problem

Existing variable frequency compressors cannot output stably under low load conditions, resulting in frequent starts and stops, which consumes energy and is not conducive to compressor reliability. The compression volume adjustment range of existing variable capacity compressors is small and cannot achieve stepless capacity change.

Method used

A pump body assembly is designed. By setting a rotatable pressure relief channel and a swivel in the cylinder, the eccentric part of the crankshaft and the swivel are coordinated to achieve stepless adjustment of the compression chamber volume. The servo motor drives the gear transmission system to accurately control the position of the swivel.

Benefits of technology

It realizes stepless adjustment of the compressor capacity, improves the stable operation of the air-conditioning system under low-load conditions, reduces energy consumption, and enhances the reliability and applicability of the compressor.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present application relates to the field of air conditioners, and in particular to a pump body assembly, a compressor and an air conditioner. The pump body assembly comprises: a cylinder having a cavity; a crankshaft comprising an eccentric portion, the eccentric portion being arranged in the cavity, the eccentric portion being tangentially sealed with the inner wall surface of the cavity, and a compression chamber being formed between the outer peripheral surface of the eccentric portion and the inner wall surface in the cylinder; and a first flange plate arranged at the first end of the cylinder, the first flange plate being provided with a rotating ring extending along the circumference of the cylinder towards the end surface of the cylinder, the rotating ring being provided with a pressure relief channel, and the rotating ring being capable of rotating about its own axis to selectively communicate the pressure relief channel with the compression chamber, thereby meeting the requirement of large-scale stepless adjustment of the effective compression volume of the compressor.
Need to check novelty before this filing date? Find Prior Art