A Novel Stator Cooling Structure for Yokeless and Segmented Armature Axial Flux Machine with Heat Pipe

Wei Le, Mingyao Lin, Keman Lin, Kai Liu, Lun Jia, Anchen Yang and Shuai Wang
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Wei Le: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Mingyao Lin: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Keman Lin: College of Energy and Electrical Engineering, Hohai University, Nanjing 210096, China
Kai Liu: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Lun Jia: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Anchen Yang: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Shuai Wang: School of Electrical Engineering, Southeast University, Nanjing 210096, China

Energies, 2021, vol. 14, issue 18, 1-15

Abstract: The yokeless and segmented armature axial flux machine is considered an excellent topology for electric vehicles application. However, its performance is severely limited by the stator cooling system. The heat pipe, as the small size, lightweight, but highly efficient passive phase-change cooling element, has been attracting more and more attention in the thermal management methods of electric motors. Therefore, the relationship between the thermal performance of the heat pipe with temperature is measured in detail through an experimental test platform in this paper. Further, a novel stator cooling structure that combines the heat pipe with the housing water-cooling method is introduced to improve the temperature distribution of the stator. Computational fluid dynamics (CFD) simulation verifies that the proposed cooling structure can accelerate the release of heat from the stator and reduce the temperature of the stator significantly.

Keywords: yokeless and segmented armature axial flux machine (YASA); stator cooling structure; thermal analysis; flat heat pipe; housing cooling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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