Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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An Analysis of the Control and Defrost Patents for Heat Pump

압축식 열펌프의 제상${\cdot}$제어 특허기술 분석

  • Choi Jong Min (Department of Mechanical Engineering, Hanbat National University) ;
  • Sim Yun-Hee (Department of Architectural Engineering, Kyungmin College) ;
  • Lee Sang Hyuk (Division of Intelligent System Engineering, Woosong Technical College) ;
  • Lee Jaehoon (Machinery & Metals Examination Burearu, KIPO) ;
  • Lee Jinwook (Machinery & Metals Examination Burearu, KIPO) ;
  • Park Seong-ryong (Department of Energy System, KIER) ;
  • Kim Yongchan (Department of Mechanical Engineering, Korea University) ;
  • Yoon Joonsang (Graduate School of Mechanical Engineering, Hanbat National University)
  • 최종민 (국립한밭대학교 기계공학과) ;
  • 심윤희 (경민대학 실용건축과) ;
  • 이상혁 (우송공업대학 인텔리전트 설비계열) ;
  • 이재훈 (특허청 공조기계심사담당관실) ;
  • 이진욱 (특허청 공조기계심사담당관실) ;
  • 박성룡 (한국에너지기술연구원 에너지시스템연구부) ;
  • 김용찬 (고려대학교 기계공학과) ;
  • 윤준상 (국립한밭대학교 기계공학과 대학원)
  • Published : 2005.12.01
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Abstract

A technical analysis was conducted to predict the development trend for heat pump system. The study was based on a submitted patent from 1983 to 2002 in Korea, U.S.A. and Japan. The total number of raw data from the registered database was 19,261 and the obtained data to be analyzed through the filtering process was 5,143. Technical development of compression type heat pump was more dominant than the other types, absorption, adsorption, and chemical heat pump. The patents for compression type made up over $80\%$ in each country, Most of patents were developed for the defrosting and controlling technology of the compression type heat pump system. Approximately $24\%\;and\;62\%$ of the patents about compression type heat pump were for defrosting and control technologies, respectively.

Keywords

References

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