内置式永磁同步电机模块化转子及装配方法

By using a modular rotor design and specially designed fastening rods and connecting frames, the problems of magnetic leakage and material waste in built-in permanent magnet synchronous motors are solved, motor performance and processing efficiency are improved, and the assembly process is simplified.

CN116094213BActive Publication Date: 2026-07-17HARBIN INST OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN INST OF TECH
Filing Date
2023-02-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The magnetic bridge and ribs of the built-in permanent magnet synchronous motor have magnetic leakage, which leads to mutual constraints between electromagnetic performance and mechanical strength, as well as low material utilization and low processing efficiency.

Method used

The rotor adopts a modular rotor design, dividing the rotor core into several modular core layers, which are fixed by fastening rods, connecting frames and fixed end caps to avoid mutual constraints between mechanical strength and electromagnetic performance. The modular core layers are manufactured using small pieces of plate or cutting scraps, and special fastening rods and connecting frames are used to replace the traditional magnetic bridge and rib structure.

Benefits of technology

It improves material utilization and processing efficiency, avoids permanent magnet leakage and local saturation, enhances the electromagnetic performance and mechanical strength of the motor, and simplifies the assembly process.

✦ Generated by Eureka AI based on patent content.

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Abstract

内置式永磁同步电机模块化转子及装配方法,属于永磁电机领域,本发明为解决现有内置式永磁同步电机磁桥、肋部存在漏磁,加工效率低,浪费材料等问题。本发明方案:铁心转轴连接架包括端盖和骨架,所述骨架设置在平行的端盖与固定端盖之间并与端盖的内侧端面固连,骨架中心具有轴向安装孔,骨架沿周向均分为2p个磁极区域,每极下具有向内弯曲圆弧面,每极下设置燕尾槽,每极下设置一个转子铁心模块,转子铁心模块内嵌有永磁体,所述转子铁心模块和永磁体通过多个紧固杆限定其轴向及径向位置,各紧固杆的两端分别嵌入端盖和固定端盖的限位卡槽;转子铁心模块每极对称中心的最内侧位置通过燕尾槽并沿轴向插接于骨架。
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