空调用塑封电动机噪声改进设计

Reducing Plastic Motor Noise of Air Conditioner

阐述了空调用塑封电动机的噪声种类,分析了噪声产生的原因,提出了对应的基本解决方法;同时,对塑封电动机的电磁噪声改进方案进行了概述,提出了改善该电动机噪声的措施,对定子冲片具体尺寸进行详细描述并改进了设计。经过大批量试用,空载、负载噪声平均降低2~3dB（A）,效率平均提高2%~3%;噪声改善效果良好。

Noise generated from the plastic motor of air conditioners is introduced.A method for reducing the noise is proposed based on studies of electromagnetic noise improvement for plastic motor.The study includes measures for improving electrical noise behaviors,improved design of stator laminations,and analysis of causes of noise.Massive trials show that,with and without load,the average noise reduction reaches 2-3dB,and the efficiency is increased by 2%-3%.The noise reduction performance is good.