한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제28권12호
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  • Pages.843-846
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  • 2015
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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고장 분석과 가속 수명시험을 통한 PTC 히터의 신뢰성 평가

Reliability Evaluation on PTC Heater Using Accelerated Life Test and Failure Analysis

  • 최형석 (한국세라믹기술원 에너지환경소재본부)
  • Choi, Hyoung-Seuk (Energy & Environmental Division, Korea Institute of Ceramic Engineering and Technology (KICET))
  • 투고 : 2015.11.18
  • 심사 : 2015.11.24
  • 발행 : 2015.12.01
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초록

In this paper, the failure mechanism of PTC heater were examined closely by failure analysis and based on it, accelerated life test were conducted. Finally, life distribution and acceleration model were established. The failure mechanism of PTC heater such as crack, increase of resistance due to heating were identified. Two acceleration factors such as temperature, humidity were chosen with two levels each and accelerated life test were done. Life distribution were identified as Weibull distribution with shape parameter 5.4 and Temperature-Humidity model was fitted as an acceleration model.

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참고문헌

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