TY - GEN
T1 - An Enhanced Endwinding Cooling Configuration Using Heat Pipes for An EVTOL Propulsion Motor
AU - Zhao, Han
AU - Du, Dalin
AU - Zhang, Xiang
AU - Zhang, Xiaochen
AU - Li, Jing
AU - Liu, Kaihao
AU - Zhang, Wei
AU - Zhang, He
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - This article presents a propulsion motor featuring an enhanced end-winding cooling configuration using heat pipes (HPs) for electric Vertical Take-off and Landing (eVTOL) propulsion applications. HPs are employed to facilitate efficient heat transfer from the end windings to ambient air, thereby effectively enhancing their cooling capability and addressing the localized overheating issue. Firstly, a motor topology with an HP-based end-winding cooling structure is proposed. Then, a motor thermal model is established and compared with a reference model without HPs to evaluate the cooling effectiveness of the proposed cooling structure. The comparative results demonstrate improved thermal performance of the end windings, characterized by a significantly reduced winding hotspot temperature and a more uniform temperature distribution.
AB - This article presents a propulsion motor featuring an enhanced end-winding cooling configuration using heat pipes (HPs) for electric Vertical Take-off and Landing (eVTOL) propulsion applications. HPs are employed to facilitate efficient heat transfer from the end windings to ambient air, thereby effectively enhancing their cooling capability and addressing the localized overheating issue. Firstly, a motor topology with an HP-based end-winding cooling structure is proposed. Then, a motor thermal model is established and compared with a reference model without HPs to evaluate the cooling effectiveness of the proposed cooling structure. The comparative results demonstrate improved thermal performance of the end windings, characterized by a significantly reduced winding hotspot temperature and a more uniform temperature distribution.
KW - comparitive thermal analysis
KW - EVTOL propulsion motor
KW - formed Litz windings
KW - heat pipes
UR - https://www.scopus.com/pages/publications/105015642026
U2 - 10.1109/CIEEC64805.2025.11116341
DO - 10.1109/CIEEC64805.2025.11116341
M3 - Conference contribution
AN - SCOPUS:105015642026
T3 - 2025 IEEE 8th International Electrical and Energy Conference, CIEEC 2025
SP - 88
EP - 93
BT - 2025 IEEE 8th International Electrical and Energy Conference, CIEEC 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th IEEE International Electrical and Energy Conference, CIEEC 2025
Y2 - 16 May 2025 through 18 May 2025
ER -
