Structure of a mid-mounted, side-mounted DC brushless permanent magnet synchronous motor for electric vehicles

Abstract

This utility model relates to the field of synchronous motor technology and discloses a structure for a mid-mounted, side-mounted, brushless permanent magnet synchronous motor for electric vehicles. The structure includes a frame, with a power assembly inside the frame. The power assembly includes a motor body, a reduction gear fixedly connected to the output end of the motor body, a hub on one side of the motor body, and an auxiliary wheel on the side of the hub. A synchronous belt is provided on the outer wall of both the reduction gear and the auxiliary wheel, and both the reduction gear and the auxiliary wheel mesh with the synchronous belt. In this utility model, the battery pack supplies power to the motor body, driving its internal rotor to rotate. The output power is transmitted to the auxiliary wheel via the reduction gear and synchronous belt, which in turn drives the hub and tire to rotate. This achieves the effect of achieving the same torque with low voltage and reducing the overall vehicle weight, solving the problems of high magnetic reluctance and internal resistance in traditional external rotor motors, as well as the heavy battery required, thus improving the energy efficiency and range of electric vehicles.

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