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A study on cooling performance of electric vehicle motor for different cooling channel shapes
- Authors
- Park, S.-M.[Park, S.-M.]; Bang, S.-H.[Bang, S.-H.]; Chu, M.-G.[Chu, M.-G.]; Song, J.-H.[Song, J.-H.]; Lee, D.-R.[Lee, D.-R.]
- Issue Date
- 2021
- Publisher
- Korean Society for Precision Engineeing
- Keywords
- Convection cooling; Cooling channel; Cooling performance; Drive motor; Electric vehicle; Virtual fluid dynamics
- Citation
- Journal of the Korean Society for Precision Engineering, v.38, no.6, pp.417 - 425
- Indexed
- SCOPUS
KCI
- Volume
- 38
- Number
- 6
- Start Page
- 417
- End Page
- 425
- ISSN
- 1225-9071
- Abstract
- This research investigated the cooling performance of the motor in electric vehicle depending on the shape of the cooling channel. The research, conducted numerically by FLUENT V20.1, focused on the numerical study of heat transfer coefficients to find an optimum design shape with high cooling performance. To compare the cooling performance, the temperatures in the coil and cooling channel were analyzed. As a result of forced convection, the average cooling channel velocity of Case 2 was 38% faster than Model N and 34% faster than Case 1. The maximum temperature of the cooling channel of Case 2 was 8.7% lower than Model N and 5.6% lower than Case 1. The minimum temperature of the coil of Case 2 was 2.7% lower than Model N and 4.3% lower than Case 1. The maximum temperature of the coil of Case 2 was 4.6% lower than Model N and 2.9% lower than Case 1. Ultimately, cooling channel of Case 2 showed the best cooling performance and improved driving performance for motor durability. © 2021 Korean Society for Precision Engineeing. All rights reserved.
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