Water cooling device for motor of two-wheel electric vehicle

CN224697605UActive Publication Date: 2026-08-28GUANGXI LIUGANG DALING ELECTRIC VEHICLE MFG CO LTD
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Patent Information

Application Number
CN202522125364.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-09
Publication Date
2026-08-28
Estimated Expiration
2035-10-09

AI Technical Summary

Technical Problem

相关技术中的电动车的液冷轮毂电机一般是将冷却介质(如水)循环到电机轮毂内尽可能靠近转子及其线圈,这样就要求冷却介质与转子及其线圈之间密封性高,但是,这将会增加液冷轮毂电机的结构或零件,从而增加生产制造难度

Benefits of technology

本实用新型,通过外置冷却单元对电机的轮毂进行散热:给予了电机一个良好的低温工作条件,其关键是将侧盖上开设出环形凹槽,并通过端盖对环形凹槽盖住密封从而形成密封空间在密封空间加注适量的冷却介质,通过进液通道和出液通道可以形成冷却介质进出循环,从而对电机轮毂进行散热降温,实现保护了定子永磁体磁极不被退磁和转子的励磁绕组不易被烧。致使电机降低了故障率,减少了使用成本,增加了使用寿命,使电机发挥最佳的效率及性能。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of water cooling device of two-wheel electric vehicle motor, including the wheel hub of motor, the side cover and cooling unit installed in the both sides of wheel hub, the wheel hub has the motor shaft that penetrates side cover, the cooling unit is fixed in one side cover in the mode of penetration motor shaft or detachable mode, the cooling unit is used to store cooling medium, and can be with the outside storage cooling medium circulation, to take away the heat generated by motor work, realize motor heat dissipation cooling.The utility model, by the cooling unit of external cooling unit being close to wheel hub, the wheel hub (including stator, rotor) of motor is heat dissipated, solve the problem that the motor wheel hub of most electric vehicle in existing period is not high in natural heat dissipation efficiency by relying on convective air cooling itself when riding, make wheel hub, stator and rotor can be evenly heat dissipated, avoid its local temperature excessively high, simultaneously make motor when running in arbitrary working condition can be well cooled.
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