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.

CN224473124UActive Publication Date: 2026-07-07HENAN LIMA ELECTRIC VEHICLE SCI & TECH CO LTD

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

Technical Problem

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.

Method used

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.

Benefits of technology

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.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224473124U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of wheel hub motor performance optimization heat dissipation structure, it is related to wheel hub motor technical field.The utility model includes motor main body, heat dissipation disc and rotating disc, the output shaft is fixed in the output end of motor main body, the output shaft end away from motor main body is fixed with rotating disc, the outside of rotating disc is sleeved with support sleeve, the edge of support sleeve week side close to motor main body is fixed with heat dissipation disc, and the rear portion of motor main body week side is fixed with fin in annular array.The utility model is fixed by setting motor main body, heat dissipation disc and rotating disc, solve the problem that wheel hub motor output shaft is pressed larger, is easily damaged, and the resistance of wheel hub motor's heat dissipation structure air circulation is larger and easily affects heat dissipation efficiency, the advantage of the utility model is: wheel hub motor output shaft is pressed smaller, work is more stable, and the resistance of air circulation through heat dissipation structure is smaller, and heat dissipation efficiency is higher.
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