功率模块和电机控制器
By connecting multiple first DC input terminals with the same polarity in the motor controller, the problem of low reliability of power devices caused by uneven current in the motor controller is solved, and the stability and reliability of the devices are improved.
CN114765434BActive Publication Date: 2026-07-17SUZHOU INOSA UNITED POWER SYST CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUZHOU INOSA UNITED POWER SYST CO LTD
- Filing Date
- 2022-04-21
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In motor controllers, the packaging structure of multiple DC+ terminals or multiple DC- terminals leads to uneven current distribution in the internal parallel power devices, affecting device reliability.
Method used
By using multiple first DC input terminals with the same polarity and connecting them on the input side of the power device, it is ensured that the input or output electrodes have the same potential, thus avoiding uneven current.
Benefits of technology
It improves the reliability of power devices, reduces the probability of overheating failure, and enhances device stability.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN114765434B_ABST
Abstract
本发明公开一种功率模块和电机控制器，其中，功率模块包括：多个极性相同的第一直流输入端；至少一个第二直流输入端，第二直流输入端与第一直流输入端的极性相反；多个功率器件；绝缘基板，在绝缘基板的第一表面具有导电层，导电层与功率器件的输入电极或者输出电极连接；导电贴片，导电贴片沿第一方向与对应的功率器件的输入电极或者输出电极连接；交流输出端，与导电层连接；其中：各极性相同的第一直流输入端在相对于功率器件的输入侧相连接。本发明技术方案可提高功率模块中功率器件的可靠性。
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