Patent ID: 6287718
Filing Date: 2001-09-11
Classification: H01H,H01M,H02J,Y02E

Abstract:
A protection device comprising:an electrically insulative casing;an electrically insulative lid member;a breakable member arranged in a space between said casing and said lid member, said breakable member including an insulting member having an electrically conductive layer formed thereon; anda pair of wiring members, one of said wiring members being connected to one end of the electrically conductive layer of said breakable member and the other wiring member being connected to an opposite end of the electrically conductive layer of said breakable member, said wiring members extending out of said casing,wherein said breakable member is broken by a flexing of said casing or said lid member in response to an applied pressure, thereby cutting off electrical conduction between said pair of wiring members by severing the electrically conductive layer.