风扇异步电机熔断体熔断保护现象研究分析  

Research on the Failure Analysis of Asynchronous Motor Fuse

作　　者：焦鹏 贺雷 李明亮 施清清 

机构地区：[1]珠海格力电器股份有限公司,珠海519000

出　　处：《日用电器》2021年第11期137-140,共4页ELECTRICAL APPLIANCES

摘　　要：家用电风扇异步电机通常使用可复位限温器或熔断体对电机进行过热保护。本文通过对采用熔断体保护的异步电机熔断现象进行分析,确认常见熔断保护主要为电流过载和负载过载导致,对应的合金丝熔断形貌为蘑菇头状和纺锤体状。并对电机熔断体具体失效模式进行验证复现,为降低熔断保护故障率提出改善意见。Home electric fan asynchronous motors usually use resettable thermostats or fuses to protect the motor from overheating.By analyzing the fuse phenomenon of asynchronous motor with fuse protection,this paper confirms that common fuse protection is mainly caused by current overload and load overload,and the corresponding fuse shape is mushroom head and spindle body.This paper analyzes the specific failure mode,verifies the re-emergence,and puts forward some suggestions to reduce the fault rate of fuse protection.

关 键 词：电风扇 异步电机 熔断体 过流 过载 

分 类 号：TM343[电气工程—电机] TM925.11