The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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A Study on Design and Manufacture of Slotless Outer Rotor BLDC Motor for a Vehicle Blower

자동차 송풍장치용 Slotless Outer Rotor BLDC 모터 설계 및 제작에 관한 연구

  • 이현장 (대림대학교 전기공학과) ;
  • 정희석 (대림대학교 보건의료공학과) ;
  • 조선호 (대림대학교 전기공학과)
  • Received : 2023.07.30
  • Accepted : 2023.10.17
  • Published : 2023.10.31
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Abstract

In this paper, a slotless outer rotor BLDC motor for a vehicle blower was designed and manufactured to improve the disadvantages of general motors. The proposed motor solves the noise caused by mechanical friction of DC motor during rotation by removing the brush, Also, slotless air-gap windings are used to improve cogging torque by BLDC motor slots. Then, the motor has a structure in which a magnet is attached to the external rotor and rotates simultaneously with the internal rotor, there is no change in magnetic flux. Therefore, it has high efficiency by fundamentally reducing iron loss.

본 연구에서는 자동차 송풍장치용 slotless Outer Rotor BLDC 모터를 설계하고 제작하여 기존의 모터들의 단점을 개선하였다. 제안된 모터는 Brush를 제거하여 회전 시 DC 모터의 기계적 마찰에 의한 소음을 해결하고, 구조적으로 Slotless Air-Gap 권선을 사용하여 BLDC 모터 슬롯에 의해 발생되는 코깅 토크를 개선하였다. 그리고 외부 회전자에 Magnet을 부착시키고 내부 회전자와 동시에 회전하기 때문에 자속의 변화가 생기지 않아 구조적으로 철손을 원천적으로 줄여 높은 효율을 가진다.

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References

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