Noise reduction method and device of magnetic suspension refrigeration unit, storage medium and electronic equipment

CN122345282APending Publication Date: 2026-07-07GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Filing Date: 2026-06-01
Publication Date: 2026-07-07

AI Technical Summary

Technical Problem

Existing technologies cannot effectively suppress the source of airflow disturbance when the magnetic levitation chiller is under reduced load, resulting in vibration and noise affecting the operation of nearby equipment and failing to maintain stable cooling capacity.

Method used

By dynamically adjusting the opening of the compressor impeller and the liquid supply valve under low-load, high-vibration-sensitive conditions of the magnetic levitation refrigeration unit, the airflow velocity change rate is reduced first, and the opening of the liquid supply valve is then finely adjusted to maintain stable cooling capacity. Precise control is achieved using preset parameters and proportional coefficients.

Benefits of technology

It effectively suppresses the mechanical vibration and noise of the magnetic levitation refrigeration unit, solves the airflow disturbance problem at the source, and maintains the stability of the cooling capacity, thus achieving energy-saving and environmentally friendly effects.

✦ Generated by Eureka AI based on patent content.

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Figure CN122345282A_ABST

Patent Text Reader

Abstract

The application provides a noise reduction method and device of a magnetic suspension refrigeration unit, a storage medium and an electronic device. In the case that the real-time load demand of the magnetic suspension refrigeration unit is less than or equal to a preset threshold, the current vibration value, the load change amount and the target load of the magnetic suspension refrigeration unit are obtained. Based on the current vibration value and the load change amount, the opening adjustment amount of the impeller arranged in the compressor of the magnetic suspension refrigeration unit is determined to reduce the airflow speed change rate at the inlet of the compressor, and the opening of the impeller is adjusted according to the opening adjustment amount of the impeller. After the opening adjustment of the impeller is completed, the supply valve opening adjustment amount is determined based on the load change amount and the target load, and the supply valve opening is adjusted according to the supply valve opening adjustment amount. Through the method, the noise is suppressed from the source, so that the magnetic suspension refrigeration unit has the effects of energy saving and environmental protection. The problem that the airflow disturbance source cannot be synchronously suppressed and the refrigerating capacity cannot be maintained stable when the load is reduced is solved.

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