Motor system

The invention relates to a motor system including a motor including a motor cover and a shaft, a permanent magnet disposed at the exposed first end of the shaft, and a rotation angle detector disposed at the periphery of the permanent magnet, the motor cover having a first end exposed to the outside of the motor cover and a second end exposed to the outside of the shaft. And a detection unit configured to detect a magnetic field change due to rotation of the permanent magnet during rotation of the shaft to detect a rotation angle of the motor. 本发明涉及电机系统，所述电机系统包括电机、永磁体和旋转角度检测器，所述电机包括电机盖和轴，所述轴的第一端部暴露于电机盖的外部，所述永磁体设置在所述轴的暴露的第一端部，所述旋转角度检测器布置于所述永磁体的周边，并且配置为检测所述轴的旋转期间由于永磁体的旋转而引起的磁场变化，以检测电机的旋转角度。