功率模块以及电机控制器
By setting a bent connection section on the busbar, the problem of the inability to cancel out the locking stress in the straight copper busbar structure is solved, thereby improving the stability and reliability of the busbar and reducing the risk of stress concentration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU INOSA UNITED POWER SYST CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the copper busbar structure of the power module is a flat and integrated design. The locking stress generated during the connection process cannot be offset by structural deformation, which poses a potential risk.
The conductive busbar structure is non-straight, and by setting connection sections on the conductive busbar, the bending design is used to absorb mechanical stress and thermal stress, thereby reducing stress concentration.
It effectively alleviates the locking stress generated during the tooling locking process of the busbar, improves the stability and reliability of the busbar, reduces the risk of breakage, and enhances the structural stability of the motor controller under complex working conditions.
Smart Images
Figure CN224520219U_ABST
Abstract
Claims
1. A power module, characterized by include: A substrate having at least one mounting space for setting a chip; Multiple conductive busbars are provided, each including a first segment, a connecting segment, and a second segment. A first end of the first segment is connected to the chip, and the first segment extends through the substrate such that its second end is outside the substrate. A first end of the connecting segment is connected to the second end of the first segment, and a first end of the second segment is connected to the second end of the connecting segment. The length of the connecting segment is greater than the distance between the second end of the first segment and the first end of the second segment.
2. The power module according to claim 1, characterized in that, The first end of the connecting section is integrally formed with the second end of the first section; The second end of the connecting section is integrally formed with the first end of the second section.
3. The power module according to claim 1, characterized in that, The first end of the connecting section is connected to the second end of the first section by welding; The second end of the connecting section is connected to the first end of the second section by welding.
4. The power module according to claim 1, characterized in that, The distance between the second end of the first segment and the first end of the second segment is d, and the length of the connecting segment is L. The d and L satisfy: L≥1.1d.
5. The power module according to claim 1, characterized in that, The connecting section is configured as a curved shape after one bend.
6. The power module according to claim 5, characterized in that, The connecting section includes a first connecting section, an arched portion, and a second connecting section. The first end of the first connecting section is connected to the second section of the first section. The first end of the arched portion is connected to the second end of the first connecting section. The arched portion arches to one side of the plane where the first section is located. The first end of the second connecting section is connected to the second end of the arched portion. The second end of the second connecting section is connected to the first end of the second section.
7. The power module according to claim 1, characterized in that, The connecting section is configured as a curved shape with multiple bends.
8. The power module according to claim 7, characterized in that, The connecting section includes a first connecting section, a first arched portion, a second arched portion, and a second connecting section. The first end of the first connecting section is connected to the second section of the first section. The first end of the first arched portion is connected to the second end of the first connecting section. The first arched portion arches on the first side of the plane where the first section is located. The first end of the second arched portion is connected to the second end of the first arched portion. The second arched portion arches on the second side of the plane where the first section is located. The first end of the second connecting section is connected to the second end of the second arched portion. The second end of the second connecting section is connected to the first end of the second section.
9. The power module according to claim 1, characterized in that, The connecting section is made of a flexible material; or, The material of the first section and the second section is arranged to be the same, and the material of the connecting section and the first section is arranged to be different.
10. An electric machine controller characterized by A power module comprising a power module according to any of claims 1 to 9.