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Title:
A DEVICE FOR PREVENTING INTERNAL COMBUSTION FROM DEVELOPING OUTWARDS
Document Type and Number:
WIPO Patent Application WO/2007/033545
Kind Code:
A1
Abstract:
A safety device for preventing internal combustion from developing outwards, comprises a sampling circuit, a detecting and monitoring circuit a low voltage reference source. The sampling circuit comprises two thermal detectors. The detecting and monitoring circuit comprises a first monitoring terminal and a second monitoring terminal. The monitoring outputs of the first and the second monitoring terminals according to the situation of the thermal detectors is as follows: in the case of the two thermal detectors are in normal station, the first and the second monitoring outputs are inactive; in the case of one of the thermal detectors is in fault, the first monitoring output is inactive and the second monitoring output is active; in the case of the two thermal detectors are in fault, the first and the second monitoring outputs are active. The first monitoring output is used to open a power source of a fan and the second monitoring output is used to drive an alarming unit.

Inventors:
RAN HAOSI (CN)
ZHOU JIANLIN (CN)
JIN SHENG (CN)
WANG SONGPING (CN)
Application Number:
CN2006/001348
Publication Date:
March 29, 2007
Filing Date:
June 15, 2006
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
RAN HAOSI (CN)
ZHOU JIANLIN (CN)
JIN SHENG (CN)
WANG SONGPING (CN)
International Classes:
H02H5/04; G05B19/04
Foreign References:
CN2717085Y2005-08-10
CN1560636A2005-01-05
US4719973A1988-01-19
JPH07233981A1995-09-05
Other References:
See also references of EP 1950860A4
None
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (Scitech Place No.22, Jian Guo Men Wai Ave, Chao Yang District Beijing 4, CN)
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