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Patent Searching and Data


Title:
CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP2012155954
Kind Code:
A
Abstract:

To provide a circuit breaker structure which has excellent operating characteristics and which allows a movable contact piece to be housed in a small space, as a connecting conductor connected to one of terminal-side fixed conductors.

In a circuit breaker, an overcurrent detection part conductor 5a is made up of a coil, and a junction R between the overcurrent detection part conductor 5a and a movable contact conductor 3 is obtained by caulking. The circuit breaker comprises: the overcurrent detection part conductor 5a which is displaced when an overcurrent flows; the movable contact conductor 3; and a fixed contact conductor 1 which can be in a contact or non-contact state with respect to the movable contact conductor 3. The movable contact conductor 3 is made up of a leaf spring, that is, a plate-shaped conductor having elasticity. A movable contact 4 is provided on one end of the conductor, and the other end is connected to the overcurrent detection part conductor 5a so as to be displaceable in accordance with the displacement of an overcurrent detection part 5.


Inventors:
MATSUKAWA KOJI
NISHIMURA DAISUKE
INEJI TAKASHI
HARA YOSHIMASA
Application Number:
JP2011013062A
Publication Date:
August 16, 2012
Filing Date:
January 25, 2011
Export Citation:
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Assignee:
PANASONIC CORP
International Classes:
H01H73/02
Domestic Patent References:
JPS61104531A1986-05-22
JPH0565045U1993-08-27
JPH01170941U1989-12-04
JPS5995555U1984-06-28
JPS5085761U1975-07-22
JP2004165065A2004-06-10
JPS61104531A1986-05-22
JPH0565045U1993-08-27
JPH01170941U1989-12-04
JPS5995555U1984-06-28
JP2824065B21998-11-11
JP2002025415A2002-01-25
Attorney, Agent or Firm:
Shohei Oguri
Toshimitsu Ichikawa
Kimihide Hashimoto