대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제31권9호
  • /
  • Pages.772-779
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  • 2007
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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냉각날개를 갖는 외전형 BLDC 모터의 열유동 해석

Thermal and Flow Analysis of Outer-Rotor Type BLDC Motor with Cooling Blades

  • 강수진 (한양대학교 기계공학과) ;
  • 왕세명 (광주과학기술원 기전공학과) ;
  • 심호경 (광주과학기술원 기전공학과) ;
  • 이관수 (한양대학교 기계공학부)
  • 발행 : 2007.09.01
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초록

In this paper, thermo-flow characteristics of an outer-rotor type BLDC motor are numerically analyzed using three-dimensional turbulence modeling. On the rotor of the BLDC motor, cooling blades and cooling holes are existed for the enhanced cooling performances. Rotating the blades and holes generates axial air flow streaming into inner rotor side and passing through stator slots, which cools down stator by forced convection. Operating tests are performed and the numerical temperature fields are found to be in good agreement with experimental results. A new design of the BLDC motor has also been developed and major design parameters such as the arrangement of cooling holes, the area of cooling holes and cooling blades, and the cooling blade angle, are analyzed for the enhanced convective heat transfer rate. It is found that the convective heat transfer rate of the new BLDC motor model is increased by about 8.1%, compared to that of the reference model.

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참고문헌

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피인용 문헌

  1. The Heat Transfer Analysis of 1.2[kW] BLDC Motor on the Condition of the External Flow vol.26, pp.2, 2012, https://doi.org/10.5207/JIEIE.2012.26.2.027
  2. Development of Heat Dissipation Measuring System for 1.2-kW BLDC Motor vol.37, pp.11, 2013, https://doi.org/10.3795/KSME-A.2013.37.11.1423
  3. Study on Temperature and Vibration of BLDC Motor vol.18, pp.4, 2014, https://doi.org/10.9726/kspse.2014.18.4.043
  4. Thermal Characteristics of 600 W Brushless DC Motor under Axial Loading Condition vol.33, pp.12, 2016, https://doi.org/10.7736/KSPE.2016.33.12.999