Multi-phase electric machine with integrated power electronics and integrated cooling circuit
Patent Information
- Application Number
- DE602019064278
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2018-07-31
- Filing Date
- 2019-07-25
- Publication Date
- 2025-01-01
- Estimated Expiration
- 2039-07-25
AI Technical Summary
Existing solutions for integrating power electronics with polyphase electric machines in aircraft and rotorcraft face challenges in compactness, thermal management, and compatibility, particularly due to radial surface integration issues and axial integration constraints.
A hybrid architecture is proposed where power electronics are both internal and external to the casing, with n power electronic modules distributed along the casing's internal circumference and a single annular DC bus capacitor, utilizing a cooling circuit with U-shaped tubes to enhance cooling and temperature resistance.
This configuration significantly increases power density, improves heat extraction, and enhances temperature resistance, addressing the limitations of previous integration methods while minimizing volume and weight.