Title:
CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2019/220538
Kind Code:
A1
Abstract:
The present invention comprises: an abnormality detection unit that includes a sensor which is embedded between an opening/closing mechanism section of a base section (21) and a load terminal (82) and which measures a current flowing to load wiring, and that includes an abnormality detection circuit that detects the occurrence of abnormalities in the load wiring on the basis of a signal measured by the sensor; and an electromagnetic tripping device (61) which includes an electromagnetic actuator that acts in accordance with a current output from the abnormality detection unit, which is disposed between the opening/closing mechanism section in the base section (21) and a power source terminal (81), and which performs an action in which the opening/closing mechanism section is tripped by the electromagnetic actuator. The base section (21) is provided with a substrate (41) on which the abnormality detection circuit is formed, and a back-surface opening (21a) that vertically passes through a rail groove (21c) so that wiring (42) that electrically connects the substrate (41) and the electromagnetic tripping device (61) is embedded from the back-surface side.
Inventors:
NAGAHATA KAZUHIRO (JP)
Application Number:
PCT/JP2018/018763
Publication Date:
November 21, 2019
Filing Date:
May 15, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01H71/02; H01H73/06; H02B1/42
Foreign References:
| JP2015207360A | 2015-11-19 | |||
| JP2004064867A | 2004-02-26 | |||
| JP2004234920A | 2004-08-19 | |||
| JPH08138517A | 1996-05-31 |
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
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