US 12,334,293 B2
Electric circuit cut-off device
Yusuke Kondo, Gifu (JP); and Akihiko Shimizu, Gifu (JP)
Assigned to Pacific Engineering Corporation, Gifu (JP)
Appl. No. 18/032,532
Filed by Pacific Engineering Corporation, Gifu (JP)
PCT Filed Oct. 22, 2021, PCT No. PCT/JP2021/039033
§ 371(c)(1), (2) Date Apr. 18, 2023,
PCT Pub. No. WO2022/130781, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 2020-208249 (JP), filed on Dec. 16, 2020.
Prior Publication US 2023/0386777 A1, Nov. 30, 2023
Int. Cl. H01H 33/53 (2006.01); H01H 85/38 (2006.01); H01H 85/42 (2006.01); H01H 89/00 (2006.01)
CPC H01H 89/00 (2013.01) [H01H 33/53 (2013.01); H01H 85/42 (2013.01); H01H 2085/388 (2013.01); H01H 2231/026 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An electric circuit cut-off device comprising:
a housing;
a to-be-cut part that is disposed in the housing and constitutes a part of an electric circuit;
a power source disposed on a first end portion side of the housing; and
a moving body that moves in the housing between the first end portion and a second end portion on an opposite side of the first end portion; wherein
a fuse including a fusing portion and an arc-extinguishing material, and
at least one electrode part connected to terminals on both sides of the fuse are provided;
the moving body is configured such that a part of the moving body cuts a cut piece located between base pieces on both sides of the to-be-cut part while moving from the first end portion toward the second end portion by the power source;
when the moving body moves toward the second end portion, a part of the to-be-cut part and the electrode part come into contact with each other in a state where base pieces on both sides of the to-be-cut part are energized via the cut piece, and the to-be-cut part and the fuse are connected to each other; and
thereafter, accompanying a movement of the moving body, a state in which the base pieces on both sides of the to-be-cut part are energized via the cut pieces is cut off.