Title:
DC CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP2016076310
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a DC circuit breaker that is configured to facilitate a positioning work of a magnet and suppress positional displacement and dropout of a magnet after the magnet is fixed.SOLUTION: The DC circuit breaker has a holding member 26 which is integrally provided with magnet holding parts 29, 29 for holding permanent magnets 25, 25 accommodated through an opening, and a contact holding part 28 in which a fixed contact part 17 is insertable, and a yoke 38 which can be assembled to the holding member 26 so as to cover the opening. Arc extinguishing plates 23, 23 is provided with tongue pieces 30, 30, and the yoke 38 is provided with locked portions 40, 40 to which the tongue pieces 30, 30 can be locked. Accordingly, the permanent magnets 25, 25 are held in the magnet holding parts 29, 29, the fixed contact part 17 is held in the contact holding part 28, and the arc extinguishing plates 23, 23 to which grids 24, 24 are secured are locked to the yoke 38, thereby positioning the arc extinguishing plates 23, 23, the grids 24, 24, the permanent magnets 25, 25, the first fixed contact 5, the holding member 26 and the yoke 38.SELECTED DRAWING: Figure 4
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Inventors:
ITO KAZUKI
Application Number:
JP2014204179A
Publication Date:
May 12, 2016
Filing Date:
October 02, 2014
Export Citation:
Assignee:
KAWAMURA ELECTRIC INC
International Classes:
H01H73/18; H01H9/34; H01H9/44
Domestic Patent References:
| JPH10154458A | 1998-06-09 | |||
| JP2009158319A | 2009-07-16 | |||
| JP2002008508A | 2002-01-11 | |||
| JP2012243659A | 2012-12-10 |
Attorney, Agent or Firm:
Yoshiki Ishida
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