Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)
- 2007.11a
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- Pages.494-499
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- 2007
Thermal Reliability Analysis of a Closed Type Motor in an Axial Fan for the Large Space Ventilation
대형공간환기용 축류팬에 사용되는 밀폐형 모터의 열신뢰성 분석
Abstract
The thermal reliability of the closed-type BLDC motor for the high speed axial fans is analyzed by a numerical method in this dissertation. Since the module and the motor part are combined in a closed case, the heat generated from a rotor in the motor and the electronic components in the PCB module can not be effectively removed to the outside. Therefore the module will easily fail by high temperature. The accelerated-life testing was accomplished to formulate the life equation and numerical method is used to predict the inside temperature of the PCB module, which is one of the life equation parameter according to the environment. The experiment for measuring the surface heat flux of the electronic components is carried out to apply the boundary condition of numerical study. When the environment temperature of BLDC motor is 21, 35 and
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