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

Hongsik Hwang, Jeonghyun Cho, Seon-Hwan Hwang, Ju Yong Choi and Cheewoo Lee
Additional contact information
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

Energies, 2019, vol. 12, issue 3, 1-13

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.

Keywords: single-phase BLDC motor; cordless vacuum cleaner; computational fluid dynamics; flow path efficiency (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/3/465/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/3/465/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:3:p:465-:d:202488

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().