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http://dx.doi.org/10.5370/JEET.2017.12.1.126

High-Speed BLDC Motor Design for Suction Fan and Impact on the Loss caused by Core Welding  

Hong, Hyun-Seok (Dept. of Electrical Engineering, Hanyang University)
Kim, In-Gun (Dept. of Electrical Engineering, Hanyang University)
Lee, Ho-Joon (Dept. of Electric Automatization, University of Busan Institute of Science and Technology)
Go, Sung-Chul (Dept. of Mechatronics R&D Center. Mechatronics Group. Samsung Electronics Co., Ltd.)
Lee, Ju (Dept. of Electrical Engineering, Hanyang University)
Publication Information
Journal of Electrical Engineering and Technology / v.12, no.1, 2017 , pp. 126-133 More about this Journal
Abstract
This paper deals with the effects of welding, which is done to fix the stator stack, on a motor in case of fabricating a prototype motor that is manufactured in a small quantity. In the case of a small motor, the stator is designed and fabricated with the segmented core as a way to raise the fill factor of winding wire to the utmost within a limited size. In case of fabrication by welding both inside and outside of the stator in order to fix the segmented-core stator, the effects of stack are ignored, and the eddy current loss occurs. This paper performed the no-load test on an IPM-type BLDC motor for driving the suction fan of a vacuum cleaner, which was manufactured by using a segmented-core stator. As a result of the test, it was found that input power more than expected was supplied. To analyze the effects of welding by using the finite element analysis method and verify them experimentally, a stator was re-manufactured by bonding, and input power supplied during the no-load test was compared.
Keywords
BLDC motor; Suction fan; Core welding; Loss;
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