外笼型转子磁力耦合器散热翅片研究与设计  

Research and Design of Heat Dissipation Fins for Outer Cage Rotor Magnetic Coupler

作　　者：石运卓 于涵 SHI Yunzhuo;YU Han(CRRC Dalian R&D Co.,Ltd.,Dalian 116000,China)

机构地区：[1]中车大连电力牵引研发中心有限公司,大连116000

出　　处：《微特电机》2024年第10期11-15,共5页Small & Special Electrical Machines

基　　金：辽宁省教育厅自然科学研究重点攻关项目(JDL2020001);大连市科技创新基金项目(2018J12SN071)。

摘　　要：针对外笼型转子磁力耦合器调速状态产生热功耗从而产生较大的温升问题,在其外转子外部加装散热翅片以达到减小温升的目的。磁力耦合器工作时转速较大,对传统直翅片翅根底部强度要求较高,结合磁力耦合器工作原理提出了一种斜翅片,以增大轴向空气的流量,提高散热效率。分别从材料、倾斜角度及翅片间隔等方面进行研究设计,结果表明,在确定加工尺寸的前提下,散热面积相同时,斜翅片所需加工材料较直翅片少,最佳散热效率的翅片角度为60°且永磁体温度降低约12.75℃;通过改变翅片间距(即改变总散热面积),得出最佳翅片间距为6 mm,散热能力较其他间距提升约10%。理论计算值与仿真值对比相差约为6.34%,符合设计预期。Aiming at the problem of large temperature rise caused by thermal power consumption in the speed regulation state of the outer cage rotor magnetic coupler,the heat dissipation fins were installed outside the outer rotor to reduce the temperature rise.Due to the large rotation speed of the magnetic coupler,the strength of the traditional straight fin root was required to be high.Combined with the working principle of the magnetic coupler,an oblique fin was proposed to improve the axial air flow and improve the heat dissipation efficiency.The material,tilt angle and fin spacing were studied and designed respectively.The results show that under the premise of determining the processing size,when the heat dissipation area was the same,the oblique fins need less processing materials than the straight fins.The fin angle with the best heat dissipation efficiency was 60°and the permanent magnet temperature was reduced by about 12.75℃.By changing the fin spacing(that was changing the total heat dissipation area),the optimal fin spacing was 6 mm,and the heat dissipation capacity was about 10%higher than other spacing.The difference between the theoretical calculation value and the simulation value was about 6.34%,which was in line with the design expectation.

关 键 词：外笼型转子磁力耦合器 温升 斜翅片 散热效率 

分 类 号：TM351[电气工程—电机]