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Design of a Single-Phase BLDC Motor for a Cordless Vacuum Cleaner Considering the Efficiency of Airflow

Author

Listed:
  • Hongsik Hwang

    (Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea)

  • Jeonghyun Cho

    (Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea)

  • Seon-Hwan Hwang

    (Department of Electrical Engineering, Kyungnam University, Changwon 51767, Korea)

  • Ju Yong Choi

    (Department of Mechatronics Engineering, Kyungsung University, Busan 48434, Korea)

  • Cheewoo Lee

    (Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea)

Abstract

This paper discusses an inverter-driven single-phase brushless direct-current (BLDC) motor assembled by a housing for a cordless vacuum cleaner. Air gap in the single-phase BLDC motor is asymmetrically designed to satisfy starting and continuous torque by considering voltage fluctuation in a battery. By varying both advance and conduction angles in response to the change of battery voltage, the proposed single-phase BLDC motor with asymmetric air gap is able to maintain sufficient output power. The system efficiency of a vacuum cleaner driven by the proposed motor assembly is estimated by means of fluid dynamics in air watt, and it is also verified experimentally. From the results of the condition of 100,020 r/min, it was confirmed that the motor efficiency was in good agreement with the estimated efficiency, and air flow efficiency of 45.7% and system efficiency of 41.8% were achieved.

Suggested Citation

  • Hongsik Hwang & Jeonghyun Cho & Seon-Hwan Hwang & Ju Yong Choi & Cheewoo Lee, 2019. "Design of a Single-Phase BLDC Motor for a Cordless Vacuum Cleaner Considering the Efficiency of Airflow," Energies, MDPI, vol. 12(3), pages 1-13, February.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:3:p:465-:d:202488
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    Cited by:

    1. Vadim Carev & Jan Roháč & Martin Šipoš & Michal Schmirler, 2021. "A Multilayer Brushless DC Motor for Heavy Lift Drones," Energies, MDPI, vol. 14(9), pages 1-19, April.

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