Characterization of Contact and Bulk Thermal Resistance of Laminations for Electric Machines

Cousineau, J. Emily¹  Bennion, Kevin¹  DeVoto, Doug¹  Mihalic, Mark¹  Narumanchi, Sreekant¹ 

[1]National Renewable Energy Laboratory (NREL), Golden, CO (United States)

关键词: Electric Motors;    Electric Vehicles;    Energy Efficiency;    Stators;    Thermal Conductivity;    Thermal Contact Resistance;   

DOI  :  10.2172/1215166
RP-ID  :  NREL/TP--5400-63887
PID  :  OSTI ID: 1215166

学科分类：航空航天科学

美国|英语

来源: SciTech Connect

【 摘 要 】

The ability to remove heat from an electric machine depends on the passive stack thermal resistances within the machine and the convective cooling performance of the selected cooling technology. This report focuses on the passive thermal design, specifically properties of the stator and rotor lamination stacks. Orthotropic thermal conductivity, specific heat, and density are reported. Four materials commonly used in electric machines were tested, including M19 (29 and 26 gauge), HF10, and Arnon 7 materials.