A hub motor performance optimization heat dissipation structure
By optimizing the heat dissipation structure of the hub motor, including the design of arc-shaped heat sinks and fins, the problems of high output shaft stress and low heat dissipation efficiency were solved, thereby improving mechanical strength and heat dissipation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN LIMA ELECTRIC VEHICLE SCI & TECH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-07
AI Technical Summary
Hub-type motors are prone to damage due to the large stress on the output shaft during installation, and the large airflow resistance of the heat dissipation structure affects the heat dissipation efficiency.
The design includes an optimized heat dissipation structure for the motor body, heat sink, and rotating disk. The heat dissipation area is increased by using arc-shaped heat sinks and fins, the support sleeve distributes the load on the hub, reduces the stress on the output shaft, and optimizes the airflow path.
It improves the mechanical strength and heat dissipation efficiency of hub motors, reduces the risk of damage to the output shaft, and enhances heat dissipation and structural stability.
Smart Images

Figure CN224473124U_ABST