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公开(公告)号：US20170236667A1
公开(公告)日：2017-08-17
申请号：US15045842
申请日：2016-02-17
Applicant: DEXERIALS CORPORATION
Inventor： Yuji FURUUCHI , Takashi FUJIHATA , Koichi MUKAI
CPC classification number: H01H85/046 , H01H37/761 , H01H2037/046
Abstract: A protective element includes: an insulating substrate; a heat-generating element formed on the insulating substrate; first and second electrodes formed on side edges of a front surface of the insulating substrate; first and second connecting terminals provided on the back surface of the insulating substrate and being continuous with the electrodes; through-holes penetrating the front and back surfaces of the insulating substrate to connect the electrodes to the connecting terminals respectively; a heat-generating element extracting electrode electrically connected to the heat-generating element; and a meltable conductor laminated on a region extending from the heat-generating element extracting electrode to the electrodes and to be melted by heat to interrupt the current path between the electrodes; wherein the through-holes are formed at a central portion of the side edges of the insulating substrate on which the electrodes are formed.
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公开(公告)号：US20190066953A1
公开(公告)日：2019-02-28
申请号：US15766848
申请日：2016-10-05
Applicant: DEXERIALS CORPORATION
Inventor： Yuji FURUUCHI , Yoshihiro YONEDA , Koichi MUKAI , Kazuyuki SAKAKIBARA
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 a conductor connected to an external circuit, and a reaction part including a liquid-soluble material which opens the conductor and the external circuit and which dissolves on contacting a liquid entering the device interior to electrically connect the conductor and the external circuit.
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公开(公告)号：US20180301302A1
公开(公告)日：2018-10-18
申请号：US15766951
申请日：2016-10-05
Applicant: DEXERIALS CORPORATION
Inventor： Yuji FURUUCHI , Yoshihiro YONEDA , Koichi MUKAI , Kazuyuki SAKAKIBARA
Abstract: A switch device capable of safely opening an electrical circuit in response to an abnormality such as wetting with water or liquid leaking from a battery. The device includes a first conductor connected to an external circuit and having a relatively high ionization tendency, and a second conductor arranged close to the first conductor and having a relatively low ionization tendency which is lower than that of the first conductor, a reaction part which electrically corrodes the first conductor is formed by a liquid between the first and second conductors.
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公开(公告)号：US20180294118A1
公开(公告)日：2018-10-11
申请号：US15766853
申请日：2016-10-05
Applicant: DEXERIALS CORPORATION
Inventor： Yuji FURUUCHI , Yoshihiro YONEDA , Koichi MUKAI , Kazuyuki SAKAKIBARA
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.
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公开(公告)号：US20200321175A1
公开(公告)日：2020-10-08
申请号：US16910661
申请日：2020-06-24
Applicant: DEXERIALS CORPORATION
Inventor： Yuji FURUUCHI , Yoshihiro YONEDA , Koichi MUKAI , Kazuyuki SAKAKIBARA
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 a conductor connected to an external circuit, and a reaction part including a liquid-soluble material which opens the conductor and the external circuit and which dissolves on contacting a liquid entering the device interior to electrically connect the conductor and the external circuit.
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Patent Agency Ranking
公开(公告)号：US20190228936A1
公开(公告)日：2019-07-25
申请号：US15579356
申请日：2016-06-04
Applicant: DEXERIALS CORPORATION
Inventor： Yoshihiro YONEDA , Yuji FURUUCHI , Kazuyuki SAKAKIBARA
IPC: H01H37/76 , H01H85/08 , H01H85/12 , H01H85/143 , H01H37/04
Abstract: A fuse element comprises a low melting point metal layer, a first high melting point metal layer having a higher melting point than a melting point of the low melting point metal layer, and a restricting portion including a high melting point material having a higher melting point than a melting point of the low melting point metal layer and configured to restrict flow of the low melting point metal or deformation of a layered body constituted by the first high melting point metal layer and the low melting point metal layer.
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公开(公告)号：US20180294125A1
公开(公告)日：2018-10-11
申请号：US15766870
申请日：2016-10-05
Applicant: DEXERIALS CORPORATION
Inventor： Yoshihiro YONEDA , Yuji FURUUCHI
IPC: H01H85/11 , H01H85/175 , H01H85/06
Abstract: A fuse device includes a fuse element and a cooling member, wherein the fuse element includes a low thermal conductivity portion having a relatively low thermal conductivity in which an interrupting portion that is blown out by heat is separated from the cooling member, and a high thermal conductivity portion having a relatively high thermal conductivity, provided in a portion other than the interrupting portion, and in contact with or close to the cooling member.
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公开(公告)号：US20170278663A1
公开(公告)日：2017-09-28
申请号：US15514051
申请日：2015-09-25
Applicant: DEXERIALS CORPORATION
Inventor： Yoshihiro YONEDA , Yuji FURUUCHI , Kazumasa SAKAKIBARA
Abstract: It is an object of the invention to provide an electric wire having an excellent electrical conductivity in use of the high melting point metal and being able to surely cut off by fusing the conductive material itself at a temperature lower than the melting point of the high melting point metal, even where heat is generated from flowing overcurrent in the electrical circuit. The electric wire of the invention has a feature including a conductive material formed of a first conductive member made of a low melting point metal, and a second conductive member made of a high melting point metal, which are provided adjacent to each other, wherein the conductive material is fused by erosion of the high melting point metal according to melting of the low melting point metal.
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公开(公告)号：US20170236666A1
公开(公告)日：2017-08-17
申请号：US15045686
申请日：2016-02-17
Applicant: DEXERIALS CORPORATION
Inventor： Yuji FURUUCHI , Takashi FUJIHATA , Koichi MUKAI
CPC classification number: H01H37/34 , H01H85/0241 , H01H2085/0283
Abstract: A protective element includes: a rectangurarly shaped insulating substrate; a heat-generating element formed on the insulating substrate; first and second electrodes laminated on a surface of the insulating substrate; first and second connecting terminals provided on a back surface of the insulating substrate and being continuous with the first and second electrodes; a heat-generating element extracting electrode provided on a current path between the first and the second electrodes and electrically connected to the heat-generating element; and a meltable conductor laminated on a region extending from the heat-generating element extracting electrode to the first and second electrodes and to be melted by heat to interrupt the current path between the first electrode and the second electrodes; wherein at least one of the corner portions of the insulating substrate is chamfered.
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公开(公告)号：US20170236665A1
公开(公告)日：2017-08-17
申请号：US15045584
申请日：2016-02-17
Applicant: DEXERIALS CORPORATION
Inventor： Yuji FURUUCHI , Takashi FUJIHATA , Koichi MUKAI
CPC classification number: H01H37/04 , H01H37/34 , H01H37/761 , H01H85/046 , H01H2037/046
Abstract: In a protective circuit substrate having a circuit substrate and a protective element, the protective element including: an insulating substrate; a heat-generating element; first and second electrodes laminated on the insulating substrate; a first and second connecting terminals provided on one side edge of a mounting surface to be mounted to the circuit substrate, the first connecting terminals being continuous with the first and second electrodes; a heat-generating element extracting electrode provided in a current path between the first and second electrodes and electrically connected to the heat-generating element; and a meltable conductor provided between the first and second electrodes, wherein the circuit substrate includes a region for mounting the protective element in which no electrode pattern other than a connecting electrode to the protective element is provided.
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