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Title:
CURRENT BREAKING DEVICE AND POWER STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/064777
Kind Code:
A1
Abstract:
This current breaking device is provided with a first current-carrying member, a second current-carrying member, and a deformable member. The first current-carrying member is connected to an electrode terminal. The second current-carrying member is connected to an electrode. The second current-carrying member is spaced away from the first current-carrying member and disposed so as to face the first current-carrying member. The second current-carrying member also has a recess formed therein on the side facing the first current-carrying member. The deformable member is disposed between the first current-carrying member and the second current-carrying member. Ends of the deformable member are joined to the first current-carrying member. When the pressure inside a case is not more than a prescribed value, a central part of the deformable member gets connected to the second current-carrying member within the recess of the second current-carrying member so as to cause conduction between the first and second current-carrying members. In addition, when the pressure inside the case exceeds the prescribed value, snap-buckling takes place in the deformable member so as to bring the first and second current-carrying members into a nonconductive state.

Inventors:
OIDE RYUJI (JP)
KURITA MIKIYA (JP)
HIROSE TAKAYUKI (JP)
IWA TOSHIAKI (JP)
OGAWA YOSHIHIRO (JP)
MITSUYASU MAKOTO (JP)
AKIYOSHI NORIMITSU (JP)
Application Number:
PCT/JP2018/025091
Publication Date:
April 04, 2019
Filing Date:
July 02, 2018
Export Citation:
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Assignee:
TOYOTA JIDOSHOKKI KK (JP)
EAGLE IND CO LTD (JP)
International Classes:
H01G2/18; H01G11/16; H01M50/574
Domestic Patent References:
WO2015141570A12015-09-24
Foreign References:
JP2010212034A2010-09-24
JP2013161712A2013-08-19
Attorney, Agent or Firm:
KAI-U PATENT LAW FIRM (JP)
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