Tang Chenqi, Yu Zhongjun, Liu Zhixin, Fu Jia, Yang Juntan
{"title":"电机热管理技术的研究现状和发展趋势","authors":"Tang Chenqi, Yu Zhongjun, Liu Zhixin, Fu Jia, Yang Juntan","doi":"10.1007/s40997-024-00755-0","DOIUrl":null,"url":null,"abstract":"<p>With the continuous development of the economic society, there is a growing demand for higher power density in motors, which has made motor heat dissipation issues increasingly prominent. Excessive motor temperature can lead to various problems such as geometric deformation, increased losses, insulation aging, and demagnetization of permanent magnets, all of which severely impact the performance and safety of the motor. Developing efficient and reliable thermal management technologies for motors is crucial for improving motor efficiency, durability, and safety. Building on previous research, this paper provides a comprehensive summary and analysis of the current state of thermal management technologies for motors, going beyond specific types of motors. Firstly, it outlines commonly used thermal analysis methods such as lumped parameter thermal network, finite element method, and computational fluid dynamics. The challenges encountered during the thermal analysis process are also discussed. During thermal analysis, the accuracy of the winding equivalent methods, the convective heat transfer coefficient and the contact resistance directly and greatly affect the precision of the thermal analysis. Therefore, it is crucial to prioritize in-depth discussions regarding these factors to ensure accurate thermal analysis. Based on this foundation, the development and research status of motor thermal technology including air cooling, water cooling, oil cooling, and evaporative cooling is further explored. Oil possesses good insulation performance and corrosion resistance, enabling direct contact with heat sources. Consequently, oil cooling exhibits superior heat dissipation efficiency, addressing the thermal management challenges in high-power density motors. Special emphasis is given to summarizing and analyzing oil cooling technology. Additionally, the influence of phase change materials, encapsulation materials, and heat conduction plates on motor cooling efficiency is discussed. In conclusion, it is hoped that the contents of this paper will provide valuable guidance and reference for future research in thermal management technologies for motors.</p>","PeriodicalId":49063,"journal":{"name":"Iranian Journal of Science and Technology-Transactions of Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Research Status and Development Trends of Thermal Management Technologies for Motors\",\"authors\":\"Tang Chenqi, Yu Zhongjun, Liu Zhixin, Fu Jia, Yang Juntan\",\"doi\":\"10.1007/s40997-024-00755-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>With the continuous development of the economic society, there is a growing demand for higher power density in motors, which has made motor heat dissipation issues increasingly prominent. Excessive motor temperature can lead to various problems such as geometric deformation, increased losses, insulation aging, and demagnetization of permanent magnets, all of which severely impact the performance and safety of the motor. Developing efficient and reliable thermal management technologies for motors is crucial for improving motor efficiency, durability, and safety. Building on previous research, this paper provides a comprehensive summary and analysis of the current state of thermal management technologies for motors, going beyond specific types of motors. Firstly, it outlines commonly used thermal analysis methods such as lumped parameter thermal network, finite element method, and computational fluid dynamics. The challenges encountered during the thermal analysis process are also discussed. During thermal analysis, the accuracy of the winding equivalent methods, the convective heat transfer coefficient and the contact resistance directly and greatly affect the precision of the thermal analysis. Therefore, it is crucial to prioritize in-depth discussions regarding these factors to ensure accurate thermal analysis. Based on this foundation, the development and research status of motor thermal technology including air cooling, water cooling, oil cooling, and evaporative cooling is further explored. Oil possesses good insulation performance and corrosion resistance, enabling direct contact with heat sources. Consequently, oil cooling exhibits superior heat dissipation efficiency, addressing the thermal management challenges in high-power density motors. Special emphasis is given to summarizing and analyzing oil cooling technology. Additionally, the influence of phase change materials, encapsulation materials, and heat conduction plates on motor cooling efficiency is discussed. In conclusion, it is hoped that the contents of this paper will provide valuable guidance and reference for future research in thermal management technologies for motors.</p>\",\"PeriodicalId\":49063,\"journal\":{\"name\":\"Iranian Journal of Science and Technology-Transactions of Mechanical Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-04-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Iranian Journal of Science and Technology-Transactions of Mechanical Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1007/s40997-024-00755-0\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iranian Journal of Science and Technology-Transactions of Mechanical Engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s40997-024-00755-0","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Research Status and Development Trends of Thermal Management Technologies for Motors
With the continuous development of the economic society, there is a growing demand for higher power density in motors, which has made motor heat dissipation issues increasingly prominent. Excessive motor temperature can lead to various problems such as geometric deformation, increased losses, insulation aging, and demagnetization of permanent magnets, all of which severely impact the performance and safety of the motor. Developing efficient and reliable thermal management technologies for motors is crucial for improving motor efficiency, durability, and safety. Building on previous research, this paper provides a comprehensive summary and analysis of the current state of thermal management technologies for motors, going beyond specific types of motors. Firstly, it outlines commonly used thermal analysis methods such as lumped parameter thermal network, finite element method, and computational fluid dynamics. The challenges encountered during the thermal analysis process are also discussed. During thermal analysis, the accuracy of the winding equivalent methods, the convective heat transfer coefficient and the contact resistance directly and greatly affect the precision of the thermal analysis. Therefore, it is crucial to prioritize in-depth discussions regarding these factors to ensure accurate thermal analysis. Based on this foundation, the development and research status of motor thermal technology including air cooling, water cooling, oil cooling, and evaporative cooling is further explored. Oil possesses good insulation performance and corrosion resistance, enabling direct contact with heat sources. Consequently, oil cooling exhibits superior heat dissipation efficiency, addressing the thermal management challenges in high-power density motors. Special emphasis is given to summarizing and analyzing oil cooling technology. Additionally, the influence of phase change materials, encapsulation materials, and heat conduction plates on motor cooling efficiency is discussed. In conclusion, it is hoped that the contents of this paper will provide valuable guidance and reference for future research in thermal management technologies for motors.
期刊介绍:
Transactions of Mechanical Engineering is to foster the growth of scientific research in all branches of mechanical engineering and its related grounds and to provide a medium by means of which the fruits of these researches may be brought to the attentionof the world’s scientific communities. The journal has the focus on the frontier topics in the theoretical, mathematical, numerical, experimental and scientific developments in mechanical engineering as well
as applications of established techniques to new domains in various mechanical engineering disciplines such as: Solid Mechanics, Kinematics, Dynamics Vibration and Control, Fluids Mechanics, Thermodynamics and Heat Transfer, Energy and Environment, Computational Mechanics, Bio Micro and Nano Mechanics and Design and Materials Engineering & Manufacturing.
The editors will welcome papers from all professors and researchers from universities, research centers,
organizations, companies and industries from all over the world in the hope that this will advance the scientific standards of the journal and provide a channel of communication between Iranian Scholars and their colleague in other parts of the world.