Back to results
US 12,224,139 B2Granted
Breaker and safety circuit equipped with the same, and secondary battery pack
AssigneeBourns, Inc.
InventorMasashi Namikawa
Life of this patent
Estimating the term…
Abstract
A breaker comprises: a first terminal piece on which a fixed contact is formed; a movable piece having a movable contact, for pressing the movable contact against the fixed contact so as to contact therewith; a thermally-actuated element deforming with a change in temperature and moving the movable piece so that the movable contact is separated from the fixed contact, and a second terminal piece electrically connected to the movable piece. The movable piece is provided, within a contact portion contacting with the second terminal piece, with a protrusion projecting toward the thermally-actuated element.
Claims8
A breaker comprising:
- a first terminal piece on which a fixed contact is formed;
- a movable piece having a movable contact, for pressing the movable contact against the fixed contact so as to contact therewith;
- a thermally-actuated element deforming with a change in temperature and moving the movable piece so that the movable contact is separated from the fixed contact;
- and
- a second terminal piece electrically connected to the movable piece, wherein
- the movable piece is provided, in a contact portion contacting with the second terminal piece, with a protrusion projecting toward the thermally-actuated element,
- the movable piece is welded to the second terminal piece in the contact portion, and
- a welded portion between the movable piece and the second terminal piece overlaps with the protrusion in a longitudinal direction of the movable piece.
5 more elements
Dependencies are inferred from the claim text.