Structure, assembly method for improving the heat dissipation capacity of damping bars in laminated pole synchronous motors, and laminated pole synchronous motors

By designing multi-layer fins, graphene coating, and phase change material filling the hollow structure on the damping bar of the laminated magnetic pole synchronous motor, the problems of insufficient heat capacity and low heat dissipation efficiency of the damping bar are solved, achieving more efficient thermal management and extending the service life and reliability of the motor.

CN121566822BActive Publication Date: 2026-05-26JIAMUSI ELECTRIC MACHINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIAMUSI ELECTRIC MACHINE
Filing Date
2026-01-22
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The damping bars of laminated magnetic pole synchronous motors suffer from insufficient heat capacity, low heat dissipation efficiency, structural design limitations, and poor cycle reliability during startup, leading to unstable motor startup and shortened lifespan.

Method used

The damping bar structure employs multi-layer fins and graphene coating, combined with phase change material filling the hollow structure. Through the welding of fins and damping rings and the design of heat dissipation fins, an internal phase change flow heat transfer and an external three-dimensional heat dissipation network are formed, optimizing the thermal management of the damping winding.

Benefits of technology

It significantly improves the heat capacity and heat dissipation efficiency of the damping strip, reduces the peak temperature by 30%-40%, extends the service life of the motor, improves the reliability and stability of the motor, and adapts to more demanding starting environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention proposes a structure, assembly method, and a laminated pole synchronous motor for improving the heat dissipation capacity of the damping strip in a laminated pole synchronous motor. It belongs to the field of laminated pole synchronous motors. The invention solves the problem of how to effectively improve the heat dissipation capacity of the damping strip in a laminated pole synchronous motor. The heat dissipation structure consists of multi-layered fins welded to the damping strip of the laminated pole synchronous motor. A graphene coating is sprayed onto the fins and damping strip. The damping strip has a hollow structure filled with phase change material. One end of the damping strip is fixed to a damping ring, and the other end is connected to the pole core. Heat dissipation fins are provided at the bottom of the damping ring. This invention employs a composite heat dissipation system of "internal phase change flow heat transfer + fins + damping ring heat dissipation fins": internally, the phase change cycle of the phase change material promotes uniform heat distribution; externally, the heat dissipation fins on the surface of the damping strip and the integrated heat dissipation fins of the damping ring form a three-dimensional heat dissipation network, significantly accelerating the transfer of heat from the damping winding to the external environment.
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