Analysis of the Effect of Different Cooler Baffle Structures on Heat Transfer Characteristics of High-Pressure Permanent Magnet Motors
To reduce the temperature rise of high-voltage permanent magnet motors,a high-volt-age permanent magnet motor with a rated power of 1,400 kW was taken as the research object.Based on computational fluid dynamics and heat transfer theory,the structure of the cooler baffle was opti-mized.A three-dimensional coupled analysis model of the motor was established,and a fluid-thermal coupled analysis of the motor was conducted.The fluid flow and heat transfer characteristics of each ventilation channel under two different cooler baffle structures were calculated and compared.From the perspective of optimizing convective heat transfer through field synergy,the temperature rise and distribution patterns of the motor under different cooler structures were obtained,providing a reference for the optimization design of ventilation structures for high-voltage permanent magnet motors.