A hub motor for electric vehicles

By using lightweight alloy materials and an innovatively designed electric drive housing, the problems of heavy weight and high cost of electric vehicle hub motors have been solved, achieving both lightweighting and improved range.

CN224438620UActive Publication Date: 2026-06-30GUANGZHOU YADEA LOCOMOTIVE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU YADEA LOCOMOTIVE CO LTD
Filing Date
2025-06-11
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing electric vehicle hub motors mostly use steel and aluminum alloy materials, resulting in a large overall vehicle weight, high production costs, poor riding comfort, and are not conducive to improving the driving range.

Method used

The electric drive housing is made of lightweight alloy materials, including magnesium alloy, and is designed to be lightweight by adding rare earth elements and nano-reinforcing phases, and coating the surface with micro-arc oxidation coating and Ni-P/graphene composite coating.

Benefits of technology

It achieves lightweight design of the whole vehicle, reduces production costs, improves driving comfort and flexibility, and increases driving range.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224438620U_ABST
    Figure CN224438620U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of electric vehicle motor technology, specifically disclosing a hub motor for electric vehicles. The hub motor includes: an electric drive housing, a motor shaft, a stator assembly, and rotor magnets. The electric drive housing has an internal cavity and is made of a lightweight alloy material. The motor shaft passes through the electric drive housing, and the stator assembly is disposed within the cavity. The stator assembly includes a stator core and coil windings, with the coil windings wound around the stator core. The stator core is fixedly mounted on the motor shaft, and the rotor magnets are spaced around the outer periphery of the stator core and fixedly mounted on the electric drive housing. This design, using a lightweight alloy electric drive housing, enables a lightweight design for the entire vehicle, reduces manufacturing costs, improves driving comfort and agility, and increases the vehicle's range.
Need to check novelty before this filing date? Find Prior Art