Single bearing belt encoder ultra-thin motor structure

Abstract

This utility model relates to the field of ultra-thin motor technology, specifically to a single-bearing ultra-thin motor structure with an encoder, applied in lidar. It includes a base with an inner cavity. A bearing is installed within the inner cavity of the base. A rotor assembly is mounted on the inner wall of the bearing, and a stator core is disposed within the rotor assembly. The rotor assembly includes a steel sleeve and a magnetic ring. The steel sleeve is fixedly fitted onto the magnetic ring and connected to the inner wall of the bearing. The stator core is located within the magnetic ring and connected to the base. An encoder assembly for acquiring the position signal of the rotor assembly is disposed on the steel sleeve. This utility model achieves an ultra-thin motor design by combining the rotor assembly with a single bearing, with an overall thickness ≤12.8mm, significantly reducing the overall thickness. It can be applied in applications with limited installation space, overturning the traditional dual-bearing structure of motors, and achieving stable operation of the rotor assembly through single-bearing support.

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