空调器风机继电器失效原因分析  

Analysis on failure cause of fan relay for air conditioner

作　　者：张平 侯磊 赵怀杰 耿延凯 Zhang Ping;Hou Lei;Zhao Huaijie;Geng Yankai(Qingdao Hisense Hitachi Air-conditioning Systems Co.,Ltd.)

机构地区：[1]青岛海信日立空调系统有限公司

出　　处：《制冷与空调》2020年第5期32-36,共5页Refrigeration and Air-Conditioning

摘　　要：针对定速空调器出现的风机继电器失效问题,结合继电器的通断试验、继电器电弧现象和继电器电压及电流波形,确认继电器截流过电压为主要因素。通过调整RC(阻容)吸收器的阻容值和氧化膜电阻布局,并且适当增加整机停机延时,改善继电器的使用条件和使用环境,问题得到有效解决。Aimed at the failure of fan relay for fixed-speed air conditioner,it is confirmed that the interception overvoltage is the main influencing factor based on the on-off test,the arc phenomena,and the voltage and current waveforms.By adjusting RC absorber’s resistance and the layout of the oxidation resistance,and increasing the stop delay of the air conditioner,the service conditions and environment of the relay are improved,and the problem is effectively solved.

关 键 词：空调器 风机 继电器 电弧 截流过电压 吸收器 

分 类 号：TM5[电气工程—电器]