A permanent magnet motor with enhanced heat dissipation
By combining heat pipes with water cooling of the casing, the problem of insufficient heat dissipation under high power density of permanent magnet motors is solved, achieving efficient motor heat dissipation and improved reliability, which is suitable for aerospace, new energy vehicles and other fields.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DALIAN MARITIME UNIVERSITY
- Filing Date
- 2026-04-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing permanent magnet motors suffer from insufficient heat dissipation efficiency when operating at high power density, leading to increased temperature and affecting motor performance and lifespan, especially the reliability of permanent magnets and windings.
The cooling structure combines heat pipes and water cooling of the casing. The stator windings transfer heat through the evaporation section of the heat pipes, and the coolant flows in the cooling channels to carry away the heat. Combined with high thermal conductivity materials filling the gaps, efficient heat dissipation is achieved.
It effectively reduces the motor's temperature rise rate, improves the motor's heat dissipation efficiency and reliability, is suitable for space-constrained applications, and has the advantage of being lightweight.
Smart Images
Figure CN122419040A_ABST