Title:
回路遮断器
Document Type and Number:
Japanese Patent JP7076635
Kind Code:
B2
Abstract:
The present invention provides a circuit breaker comprising an electroconductive member (70), a movable contact (21), a grid part (31), a core (40), an arc runner (80), and a permanent magnet (81). A fixed contact point (71) is provided on one end side of the electroconductive member (70) and a power supply-side terminal (72) is provided on the other end side of the electroconductive member (70). A movable contact point (26) is provided to the movable contact (21). The grid part (31) has a plurality of grid plates (34) for extinguishing an arc produced between the fixed contact point (71) and the movable contact point (26). The core (40) has a pair of side plate parts (41) facing each other, and the grid part (31) is disposed between the pair of side plate parts (41). The arc runner (80) is connected to the electroconductive member (70) and drives the arc. The permanent magnet (81) is configured so that an N pole (81a) and an S pole (81b) having different polarities are arranged in the direction in which the movable contact (21) faces the grid part (31) or in the direction in which the pair of side plate parts (41) face each other.
Inventors:
Atsushi Nakagawa
Miyoshi Shinro
Miyoshi Shinro
Application Number:
JP2021511059A
Publication Date:
May 27, 2022
Filing Date:
April 05, 2019
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H01H73/18; H01H33/18
Domestic Patent References:
| JP2017201623A | ||||
| JP7320624A | ||||
| JP36021001Y1 |
Foreign References:
| WO2013108291A1 |
Attorney, Agent or Firm:
Takamura Jun