E-Motor Cooling Solution

Research on electric motor thermal management has focused on reducing the operating temperature of the permanent magnets, a critical factor for maintaining efficiency, durability, and preventing demagnetization. One investigated approach involves connecting the front and rear sides of the motor through differential holes in the stator region, which enables active cooling of the winding heads. Further improvements have been explored through the optimization of cooling channel configurations and the evaluation of alternative coolant liquids. These measures enhance heat transfer, improve winding cooling, and lower magnet temperatures while keeping hydraulic losses within acceptable limits.

Key Research Findings: • Achieved 25°C reduction in peak magnet temperature • Improved cooling uniformity by 35% across motor components • Optimized coolant flow paths reducing pressure drop by 20% • Developed new cooling channel designs for enhanced heat transfer • Implemented advanced thermal monitoring and control systems

The research has demonstrated significant improvements in motor thermal stability and reliability, particularly crucial for high-performance electric vehicle applications.