Title:
METHOD AND DEVICE FOR DETERMINING DEGREE OF BLOCKAGE OF RADIATOR OF CONVERTER DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/061889
Kind Code:
A1
Abstract:
Method and device for determining degree of blockage of a radiator of a converter device. The method comprises: acquiring a first temperature of a radiator; determining a first thermal resistance according to the first temperature, a pre-set temperature and the power loss of a converter device; determining, in a sample database, a first set of sample data and a second set of sample data corresponding to the first thermal resistance, wherein each set of sample data in the sample database comprises a duration and a thermal resistance after the radiator has been operated for the duration, the first thermal resistance is located between a second thermal resistance in the first set of sample data and a third thermal resistance in the second set of sample data; and according to the first thermal resistance, the first set of sample data and the second set of sample data, determining the degree of blockage of the radiator, thereby improving the accuracy in determining the degree of blockage of the radiator.
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Inventors:
LIU ZHIGANG (CN)
CHEN JIE (CN)
FU HEPING (CN)
ZHANG GANG (CN)
QI LIANGBO (CN)
MU FUQIANG (CN)
LU LIANG (CN)
QIU RUICHANG (CN)
WEI LU (CN)
LV HAICHEN (CN)
LIU XIANGPENG (CN)
CHEN JIE (CN)
FU HEPING (CN)
ZHANG GANG (CN)
QI LIANGBO (CN)
MU FUQIANG (CN)
LU LIANG (CN)
QIU RUICHANG (CN)
WEI LU (CN)
LV HAICHEN (CN)
LIU XIANGPENG (CN)
Application Number:
PCT/CN2018/107898
Publication Date:
April 02, 2020
Filing Date:
September 27, 2018
Export Citation:
Assignee:
BEIJING QIANSIYU ELECTRIC CO LTD (CN)
International Classes:
H05K7/20; H02M1/00
Foreign References:
| CN106097672A | 2016-11-09 | |||
| CN107219016A | 2017-09-29 | |||
| CN107590295A | 2018-01-16 | |||
| US20160219757A1 | 2016-07-28 | |||
| JP2013131763A | 2013-07-04 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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