Switch device, electronic component, and battery system
AssigneeDexerials Corporation
InventorsYuji FURUUCHI, Yoshihiro YONEDA, Koichi MUKAI, Kazuyuki SAKAKIBARA
Life of this patent
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Abstract
A switch device capable of safely opening or short-circuiting an electrical circuit in response to an abnormality such as wetting with water or liquid leaking from a battery is provided. The device includes first and second conductors connected to an external circuit, and a reaction part including an insulating material which changes state on contact with a liquid, the first and second conductors being electrically connected or disconnected by the insulating material changing state on contact with the liquid.
Claims27
A switch device comprising:
- first and second conductors connected to an external circuit;
- and
- a reaction part having an insulating material which changes state on contact with a liquid,
- wherein the first and second conductors are to be electrically connected or disconnected by the insulating material changing state on contact with the liquid.
A switch device comprising:
- a housing having one or more guiding inlets through which a liquid enters;
- an insulating material which is provided in the housing and which expands on contact with the liquid;
- and
- a conductive layer which is connected on both ends to an external circuit and which is formed on a circumferential surface of the insulating material,
- wherein the both ends of the conductive layer are to be made discontinuous by the insulating material expanding on contact with the liquid entering through the one or more guiding inlets.
A switch device comprising:
- a housing in a hollow shape having one or more guiding inlets through which a liquid enters;
- an insulating material in a tube shape which expands on contact with the liquid aligned with an interior wall of the housing;
- and
- a conductive layer in a linear shape which is connected on both ends to an external circuit and which wraps around an inner circumferential surface of the insulating material,
- wherein, in the insulating material and the conductive layer, a slit is formed which is continuous with the one or more guiding inlets, the both ends of the conductive layer being made discontinuous by the slit, and
- wherein the both ends of the conductive layer made discontinuous by the slit are to be connected by the insulating material expanding on contact with the liquid entering through the one or more guiding inlets.
An electronic component comprising:
- an external-connection terminal connected to an external circuit;
- and
- a reaction part having an insulating material which changes state on contact with a liquid,
- wherein the external-connection terminal is to be electrically insulated by the insulating material expanding, contracting, agglomerating, or dissolving on contact with a liquid.
A battery system comprising:
- a battery;
- and
- a reaction part having an insulating material which changes state on contact with a liquid,
- wherein a positive electrode or a negative electrode of the battery is to be insulated by the insulating material expanding, contracting, agglomerating, or dissolving on contact with the liquid.
Dependencies are inferred from the claim text.