Title:
CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2020/202795
Kind Code:
A1
Abstract:
The purpose of the present invention is to improve reliability with respect to a contact part in a power supply circuit for a sensor. This circuit breaker (1) comprises a first contact part (11), a second contact part (12) and a sensor (leak detection part). The first contact part (11) opens in accordance with an occurrence of an abnormal current and switches a main circuit from an energized state to a cut-off state. The second contact part (12) opens in conjunction with the first contact part (11) opening, and switches a power supply circuit branched from the main circuit from an energized state to a cut-off state. The sensor receives an operation power supply from the main circuit via the power supply circuit. The second contact part (12) has a contact mechanism (3) which maintains the energized state of the power supply circuit by means of a plurality of contacts. The contact mechanism (3) is disposed so as to only be separated from the first contact part (11) by a prescribed distance.
Inventors:
NAKAMICHI YOSHIYA
MIYAGAWA KOHEI
YAMAZOE KOICHI
MIYAGAWA KOHEI
YAMAZOE KOICHI
Application Number:
PCT/JP2020/004990
Publication Date:
October 08, 2020
Filing Date:
February 07, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01H73/04; H01H83/02
Domestic Patent References:
| WO2014167606A1 | 2014-10-16 |
Foreign References:
| JPH01307133A | 1989-12-12 | |||
| CN102194619A | 2011-09-21 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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