一种定子冲片、定子铁芯以及电机
By setting a first disconnection part on the stator lamination, the problem of motor breathing mode resonance noise is solved, achieving significant noise reduction without affecting motor performance, cost, and weight.
CN116014922BActive Publication Date: 2026-07-17SAIC MOTOR
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SAIC MOTOR
- Filing Date
- 2022-08-23
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies for reducing electromagnetic noise in motors, especially noise caused by breathing mode resonance, typically lead to decreased motor performance or increased cost and weight, with limited effectiveness.
Method used
A first break is set on the stator lamination, making it discontinuous or partially discontinuous in the circumferential direction, thereby suppressing the vibration mode of overall stator expansion and contraction and reducing breathing mode resonance noise.
Benefits of technology
Through a simple stator lamination design, noise is significantly reduced without increasing cost or weight, and the impact on motor power density and efficiency is minimal.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116014922B_ABST
Abstract
本申请公开一种定子冲片、定子铁芯以及电机，所述定子冲片为环状结构，且所述定子冲片包括至少一个第一断开部，所述第一断开部在周向上全部断开或局部断开所述定子冲片。本申请中的定子冲片设置第一断开部使得定子冲片在第一断开部的位置断开或者局部断开，即在周向上不连续或局部不连续，这样将无法实现整体膨胀、收缩，或者整体膨胀、收缩的情况得以抑制，则该整体膨胀、收缩的振动模式基础被消除或削弱，也就可以降低乃至消除电机呼吸模态共振所导致的振动噪声，从根本上解决呼吸模态共振。可见，该申请所提供的降低呼吸模态共振所导致的噪声的方式较为简单，仅需要定子冲片设置出第一断开部即可，不会增加成本、重量，降低噪声的效果又较为明显。
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