Title:
TERMINAL BLOCK
Document Type and Number:
WIPO Patent Application WO/2019/205116
Kind Code:
A1
Abstract:
It is therefore an objective of the invention to provide a terminal block including: an insulating body with a duct and at least one hole formed through a wall of the insulating body, a conductive linking bar in the insulating body for connecting at least one wire respectively passing through the at least one hole, a temperature probe received by the duct and made of transparent and insulating material having a first end and a second end, and a discoloration layer arranged at the first end of the temperature probe having at least a thermochroic layer. At least a portion of the temperature probe is arranged to pass through the duct towards the conductive linking bar so that the discoloration layer at the first end of the temperature probe is closer to the conductive linking bar than the second end of the temperature probe. By having such configuration, the discoloration layer will be heated rapidly thereby in the event of the bar overheating to provide a rapid colour change indicating a fault condition. This makes it more sensitive to the temperature of the conductive linking bar. Besides, the lights reflecting the colour change of the discoloration layer will propagate to the external of the insulating body through the optical path provided by the transparent temperature probe and arrives at the second end portion of the probe, which makes it visible to the eyes of the observer from an external point of view. This allows the image of discoloration layer to be viewed by the observer perceiving a fault occurring.
Inventors:
SU CUICUI (CN)
LI NAN (CN)
CHEN JIANSHENG (CN)
VILLARD ROMAIN (FR)
BARTHES KARINE (FR)
DUMOUX JACQUES (FR)
HAMOND CHRISTOPHE (FR)
LI NAN (CN)
CHEN JIANSHENG (CN)
VILLARD ROMAIN (FR)
BARTHES KARINE (FR)
DUMOUX JACQUES (FR)
HAMOND CHRISTOPHE (FR)
Application Number:
PCT/CN2018/085010
Publication Date:
October 31, 2019
Filing Date:
April 28, 2018
Export Citation:
Assignee:
ABB SCHWEIZ AG (CH)
SU CUICUI (CN)
LI NAN (CN)
CHEN JIANSHENG (CN)
VILLARD ROMAIN (FR)
BARTHES KARINE (FR)
DUMOUX JACQUES (FR)
HAMOND CHRISTOPHE (FR)
SU CUICUI (CN)
LI NAN (CN)
CHEN JIANSHENG (CN)
VILLARD ROMAIN (FR)
BARTHES KARINE (FR)
DUMOUX JACQUES (FR)
HAMOND CHRISTOPHE (FR)
International Classes:
G01K11/12
Foreign References:
| KR101698569B1 | 2017-01-20 | |||
| DE19614112A1 | 1997-10-16 | |||
| KR20170120842A | 2017-11-01 | |||
| CN207197695U | 2018-04-06 | |||
| CN203258171U | 2013-10-30 |
Other References:
See also references of EP 3788334A4
Attorney, Agent or Firm:
BOSS & YOUNG PATENT AND TRADEMARK LAW OFFICE (CN)
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