牙科综合治疗机有刷电机辐射发射整改分析  

Analysis of Radiation Emission Rectification of Brush Motor in Dental Comprehensive Treatment Machine

作　　者：黄勇[1] 温宇标 伍倚明[1] 刘海 HUANG Yong;WEN Yu-biao;WU Yi-ming;LIU Hai(Guangdong Medical Devices Quality Surveillance and Test Institute,Guangzhou 510663)

机构地区：[1]广东省医疗器械质量监督检验所,广州510663

出　　处：《环境技术》2020年第4期132-135,共4页Environmental Technology

摘　　要：牙科综合治疗机是口腔医学的主要诊疗设备之一,是牙科医生和患者在诊断、治疗、手术等过程中的必备医疗器械。根据现行的法规要求,牙科综合治疗机必须通过YY 0505-2012标准的电磁兼容试验,但在这些试验项目中,针对牙科综合治疗机设备,辐射发射试验项目极易出现不合格试验,其主要原因是牙科综合治疗机中有刷电机在工作时产生严重的电磁骚扰,导致辐射发射超过标准规定的限制要求,该文通过分析牙科综合治疗机中有刷电机的工作原理,并研究牙科综合治疗机辐射骚扰产生的根源,使用了LC滤波电路抑制牙科综合治疗机中有刷电机辐射骚扰源,达到了理想的预期效果,并结合实例整改分析,为牙科综合治疗机的电磁兼容辐射发射试验整改提供参考依据。Dental comprehensive treatment machine is one of the main diagnosis and treatment equipments of stomatology.It is a necessary medical device for dentists and patients in the process of diagnosis,treatment and surgery.According to the current regulations,dental comprehensive treatment machines must pass the electromagnetic compatibility test of YY 0505-2012 standard,but in these test items,for dental comprehensive treatment machine equipment,radiation emission test items are prone to nonconformance tests.The main reason is that the brush motor in the dental comprehensive treatment machine produces serious disturbance during work,which causes the radiation emission to exceed the standard requirements.This paper analyzes the working principle of the brush motor in the dental comprehensive treatment machine,and studies the source of the radiation disturbance of the dental comprehensive treatment machine,and the LC filter circuit is used to suppress the interference source of the brush motor in the dental comprehensive treatment machine,which achieves the desired effect.Combined with the rectification analysis of cases,it provides a reference for the rectification of electromagnetic compatibility radiation emission test of the dental comprehensive treatment machine.

关 键 词：牙科综合治疗机 辐射发射试验 有刷电机 

分 类 号：TM306[电气工程—电机]