Compact servo motor

The utility model discloses a compact servo motor, which belongs to the field of driving devices, reduces the size of the motor on the premise of ensuring the performance of the motor, and comprises a motor shell, a rotor shaft arranged in the motor shell and a sensor used for detecting the rotating speed and the rotating angle of the rotor shaft, the end part of the rotor shaft is provided with induction magnetic steel, the sensor is used for detecting the magnetic field of the induction magnetic steel, the end part of the rotor shaft is sleeved with an induction magnetic steel seat used for radially positioning the induction magnetic steel, and a gap is kept between the inner wall of the induction magnetic steel seat and the induction magnetic steel. 本实用新型公开了紧凑型伺服电机，属于驱动装置领域，在保证电机性能的前提缩小了电机的尺寸，本实用新型的紧凑型伺服电机，包括电机壳体、设置于所述电机壳体内的转子轴和用于检测所述转子轴转速和转动角度的传感器，所述转子轴的端部配置有感应磁钢，所述传感器用于检测所述感应磁钢的磁场，所述转子轴的端部套装有用于径向定位所述感应磁钢的感应磁钢座，所述感应磁钢座的内壁与所述感应磁钢之间保持间隙。