摘要
针对电动汽车高转速、大扭矩电机的电磁辐射特性测试时电波暗室内、外的电磁隔离问题,在研究电机检测系统电磁辐射特性的基础上,提出了高速穿墙屏蔽轴系统三种设计方案。经仿真对比及应用验证,穿墙波导管外套一个内壁贴吸波尖劈的屏蔽暗箱,可大幅度提高暗室屏蔽效能,解决汽车驱动电机带载状态下辐射发射认证测试时电波暗室的电磁隔离问题。
For electromagnetic shielding of anechoic chamber during electromagnetic radiation testing of high speed and high torque driving motor of electric vehicles,three design schemes of high speed feed-thru shielding shaft system are proposed based on the research of electromagnetic radiation characteristics of driving motor testing system.Through the simulation comparison and application verification,the shielding anechoic box with absorbing wedge on the inner wall of the through wall waveguide can improve the shielding effectiveness significantly.Electromagnetic shielding of anechoic chamber of radiation emission authentication test for driving motor with load can be solved successfully.
基金
福建省市场监督管理局科技项目“低速智能网联商用车场景测试与评价研究”(编号:FJMS2020043)。
关键词
认证
电动汽车
电机
电磁辐射
高速穿墙屏蔽轴系统
authentication
electric vehicle
motor
electromagnetic radiation
high speed feed-thru shielding shaft system
