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公开(公告)号：US20250166947A1
公开(公告)日：2025-05-22
申请号：US18841502
申请日：2023-02-22
Applicant: DEXERIALS CORPORATION
Inventor： Yoshihiro YONEDA
IPC: H01H37/32 , H01H85/06 , H01H85/08 , H01H85/143 , H01M50/583
Abstract: A protective element includes: an insulating substrate; a heat-generating body disposed on either one face side or the other face side of the insulating substrate; a first electrode and a second electrode disposed on the other face side of the insulating substrate; an extraction electrode disposed between the first electrode and the second electrode and electrically connected to one end side of the heat-generating body; a third electrode electrically connected to the other end side of the heat-generating body; and a fusible conductor disposed on a face of the first electrode, the second electrode, and the extraction electrode. A surface area of the fusible conductor disposed on a face of the extraction electrode is smaller than each of a surface area of the fusible conductor disposed on a face of the first electrode and a surface area of the fusible conductor disposed on a face of the second electrode.
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公开(公告)号：US20240234069A9
公开(公告)日：2024-07-11
申请号：US18279276
申请日：2022-03-07
Applicant: DEXERIALS CORPORATION
Inventor： Yoshihiro YONEDA
IPC: H01H85/055 , H01H85/00
CPC classification number: H01H85/055 , H01H85/0047
Abstract: A fuse element includes a low-melting-point metal plate, a first high-melting-point metal layer, and a second high-melting-point metal layer. The low-melting-point metal plate has a first main surface, a second main surface, a first side surface, and a second side surface. The first main surface and the second main surface face each other. The first side surface and the second side surface face each other and each connect the first main surface and second main surface. The first high-melting-point metal layer is disposed on the first main surface and second main surface. The second high-melting-point metal layer is disposed on the first side surface and second side surface. The fuse element has a cut-out portion in which at least a portion of the second high-melting-point metal layer is cut out.
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公开(公告)号：US20230197392A1
公开(公告)日：2023-06-22
申请号：US17925133
申请日：2021-05-26
Applicant: DEXERIALS CORPORATION
Inventor： Yutaka WADA , Yoshihiro YONEDA
IPC: H01H85/00 , H01H85/055
CPC classification number: H01H85/0039 , H01H85/055
Abstract: A protective element includes a fuse element, a movable member, a concave member, and a press. The fuse member includes, a first end, a second end, and a cut part positioned between the first end and the second end. The fuse element is energized in a first direction from the first end to the second end. The movable member and the concave member are disposed facing each other such that the cut part is interposed therebetween. The press applies a force to the movable member in a pressing direction in which a distance between the movable member and the concave member shortens. At a temperature at or above a softening temperature of the fuse element, the cut part is cut by the force of the press.
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公开(公告)号：US20220181870A1
公开(公告)日：2022-06-09
申请号：US17678682
申请日：2022-02-23
Applicant: DEXERIALS CORPORATION
Inventor： Yoshihiro YONEDA
Abstract: Provided are a protection circuit and a photovoltaic system capable of irreversibly interrupting a current path of photovoltaic units such as solar cells by a signal in an emergency such as a fire. The protection circuit includes: a photovoltaic units 26, a protection element 2 provided on a current path of the photovoltaic units 26, and a switch 3 for activating the protection element 2, wherein the protection element 2 irreversibly interrupts the current path of the photovoltaic units 26.
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公开(公告)号：US20190172673A1
公开(公告)日：2019-06-06
申请号：US16321758
申请日：2017-08-28
Applicant: DEXERIALS CORPORATION
Inventor： Yoshihiro YONEDA
IPC: H01H85/143 , H01H69/02 , H01H85/20 , H01H37/76
CPC classification number: H01H85/143 , H01H37/76 , H01H69/02 , H01H85/11 , H01H85/2045
Abstract: A fuse element as well as a fuse device and protective device using the same which are capable of suppressing generation of defects such as cracks in a high melting point metal layer, maintaining good conduction, and maintaining blowout properties. The fuse element includes a laminated low melting point metal layer and high melting point metal layer and at least one peak among peaks in an X-ray diffraction spectrum (2θ) of a surface of the high melting point metal layer has a full width at half maximum of 0.15 degrees or less.
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Patent Agency Ranking
公开(公告)号：US20240379313A1
公开(公告)日：2024-11-14
申请号：US18687869
申请日：2022-08-26
Applicant: DEXERIALS CORPORATION
Inventor： Yoshihiro YONEDA
Abstract: A protective element includes: a fuse element including a first end portion and a second end portion; first and second insulating members each having an opening or a separation part, the first and second insulating members being disposed in a state proximal to or in contact with the fuse element; a shielding member movable in a moving direction that allows the shielding member to insert into the opening or the separation part so as to divide the fuse element; a locking member that suppresses movement of the shielding member; a pressing member that press the shielding member; and a heat-generating body configured to heat the locking member or a fixing member of the locking member.
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公开(公告)号：US20210074502A1
公开(公告)日：2021-03-11
申请号：US16960278
申请日：2018-12-07
Applicant: DEXERIALS CORPORATION
Inventor： Yoshihiro YONEDA
Abstract: Provided is a fuse device capable of maintaining the insulation performance while using a fuse element having a considerable size to improve rating. The fuse device includes a fuse element 2 and a case 3 for housing the fuse element 2, and the case 3 has a resin portion 4 having a surface to be melted by heat accompanying blowout of the fuse element 2 on at least a part of an inner wall surface 8a facing the inside 8 housing the fuse element 2.
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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：US20160013001A1
公开(公告)日：2016-01-14
申请号：US14770312
申请日：2014-03-27
Applicant: DEXERIALS CORPORATION
Inventor： Yoshihiro YONEDA , Chisato KOMORI , Kazutaka FURUTA , Yasushi UTSUNOMIYA
CPC classification number: H01H85/06 , H01H85/11 , H01H85/48 , H01H85/50 , H01H2207/02
Abstract: A fuse element capable of surface-mounting and capable of increased ratings while maintaining high-speed blowout property; and a fuse device using the same. A fuse element blown by self-generated heat caused when a rate-exceeding current flows therethrough constitutes a current path of a fuse device and has a low melting point metal layer and a high melting point metal layer laminated onto the low melting point metal layer; when the current flows therethrough, the low melting point metal layer erodes the high melting point metal layer and blowout occurs.
Abstract translation: 一种能够表面安装并能够提高额定值同时保持高速喷吹性能的保险丝元件; 以及使用其的保险丝装置。 由超过电流流过的自发热引起的熔丝元件构成保险丝装置的电流路径，并具有层叠在低熔点金属层上的低熔点金属层和高熔点金属层; 当电流流过其中时，低熔点金属层侵蚀高熔点金属层并发生喷出。
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