A heat dissipation structure for a three-phase asynchronous motor

CN122371589APending Publication Date: 2026-07-10WEIHAI SHENLI MOTOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WEIHAI SHENLI MOTOR CO LTD
Filing Date
2026-04-16
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing three-phase asynchronous motors suffer from poor heat dissipation adaptability, low heat dissipation resource utilization, and inconvenient lubrication and maintenance, resulting in low operating efficiency and shortened service life.

Method used

It adopts a heat dissipation structure that combines air cooling and water cooling. It realizes the secondary utilization of air kinetic energy through negative pressure guide pipe and horn air inlet. Combined with the linkage lubrication component, it uses the temperature change during the heat dissipation process to drive the automatic supply of lubricating oil, realizing the linkage between heat dissipation and lubrication.

Benefits of technology

It improves heat dissipation efficiency, extends bearing life, simplifies maintenance, reduces energy consumption and manufacturing costs, and ensures stable operation of the motor.

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Abstract

This invention belongs to the field of heat dissipation technology for three-phase asynchronous motors, specifically a heat dissipation structure for three-phase asynchronous motors, including a housing, stator, main shaft, main shaft bearing, air-cooled heat dissipation assembly, water-cooled heat dissipation assembly, and a linkage lubrication assembly. Addressing the shortcomings of existing three-phase asynchronous motors, such as a single heat dissipation method, cumbersome lubrication maintenance, and insufficient heat dissipation adaptability under different operating conditions, this invention effectively solves the technical problems of low heat dissipation efficiency, inconvenient bearing lubrication maintenance, and poor heat dissipation adaptability under low-speed and high-speed conditions by combining air-cooling and water-cooling dual heat dissipation modes with an automatic lubrication mechanism linked to the heat dissipation process. It achieves integrated control of heat dissipation and lubrication, improving the stability and reliability of the three-phase asynchronous motor operation, extending the service life of the three-phase asynchronous motor and its components, reducing the maintenance cost of the three-phase asynchronous motor, and adapting to the operating requirements of three-phase asynchronous motors in various industrial production scenarios.
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