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    PROTECTIVE ELEMENT
    23.
    发明申请
    PROTECTIVE ELEMENT 有权

    公开(公告)号：US20240371591A1

    公开(公告)日：2024-11-07

    申请号：US18688669

    申请日：2022-08-30

    Applicant: DEXERIALS CORPORATION

    Inventor： Manabu SAITO ,  Yutaka WADA ,  Yoshihiro Yoneda

    IPC: H01H85/055 ,  H01H85/143 ,  H01H85/165

    Abstract: A protective element includes a fuse element, an insulating case, a first terminal, and a second terminal, and also includes an insulating member disposed close to or in contact with the fuse element and having an opening portion or a separation portion formed therein, a shielding member configured to move downward to divide the fuse element, a pressing unit configured to press the shielding member downward, and a locking member configured to restrain downward the shielding member, wherein the shielding member has a convex portion that protrudes toward the fuse element, the convex portion has a tip end disposed at a lower end portion of the convex portion and extends in a width direction, the tip end has a first inclined blade which extends downward as nearing one side in the width direction, and the first inclined blade overlaps a region half the length of the fuse element in the width direction.

    Protective element
    24.
    发明授权
    Protective element 有权

    公开(公告)号：US12074005B2

    公开(公告)日：2024-08-27

    申请号：US17310985

    申请日：2020-03-02

    Applicant: DEXERIALS CORPORATION

    Inventor： Yoshihiro Yoneda ,  Koji Sato

    IPC: H01H37/76 ,  H01H85/00 ,  H01H85/36 ,  H01H85/06 ,  H01H85/08

    CPC classification number: H01H85/36 ,  H01H85/0047 ,  H01H2037/762 ,  H01H85/06 ,  H01H85/08

    Abstract: This protective element includes a fuse element having a first end portion and a second end portion, in which current flows from the first end portion toward the second end portion, a protruding member and a recessed member that are positioned opposing one another so as to sandwich a cutoff portion, and a pressing device that imparts an elastic force that shortens the relative distance in a first direction that represents the direction in which the protruding member and the recessed member sandwich the cutoff portion, wherein at least one pair of opposing surfaces of a protruding portion of the protruding member and a recessed portion of the recessed member that intersect the direction of current flow through the fuse element are positioned close to one another when viewed in a plan view from the first direction, and the fuse element is cut at a temperature equal to or higher than the softening temperature of the material that constitutes the fuse element.

    PROTECTIVE CIRCUIT
    25.
    发明公开
    PROTECTIVE CIRCUIT 审中-公开

    公开(公告)号：US20230207241A1

    公开(公告)日：2023-06-29

    申请号：US17927339

    申请日：2021-05-27

    Applicant: DEXERIALS CORPORATION

    Inventor： Yoshihiro Yoneda

    IPC: H01H37/76 ,  H01M10/48 ,  H02H7/18 ,  H02H3/20 ,  H01H85/11

    CPC classification number: H01H37/76 ,  H01M10/48 ,  H02H7/18 ,  H02H3/20 ,  H01H85/11 ,  H02J7/0013

    Abstract: A protective circuit (1A) is provided with: a protective element (10A): a plurality or secondary battery cells (20), (20), . . . ; an external positive electrode terminal (30a) and an external negative electrode terminal (30b); an auxiliary power supply (40); a first controlling dev ice (50): and a switch (60). The protective element (10A) includes: a first fusible conductor (15) of which the two ends are connected to a first terminal (11) and a second terminal (12): and a heat generating body (16) disposed in a first energizing path (P1A) between a third terminal (13) and a fourth terminal (14). The auxiliary power supply (40) is provided electrically independently of the plurality of secondary battery cells (20), (20), . . . . In this protective circuit (1A), a signal from the first controlling device (50) causes the switch (60) to switch in such a way as to conduct electricity, thus causing the heat generating body (16) of the protective element (10A) to generate heat which fuses the first fusible conductor (15), thereby isolating the plurality of secondary battery cells (20), (20), . . . from the external negative electrode terminal (30b).

    Protection circuit and photovoltaic system
    26.
    发明授权
    Protection circuit and photovoltaic system 有权

    公开(公告)号：US11621552B2

    公开(公告)日：2023-04-04

    申请号：US17678682

    申请日：2022-02-23

    Applicant: DEXERIALS CORPORATION

    Inventor： Yoshihiro Yoneda

    IPC: H02H7/00 ,  H02H7/20 ,  H02S20/23 ,  H02S40/34 ,  H02H1/00

    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.

    PROTECTIVE ELEMENT
    27.
    发明申请
    PROTECTIVE ELEMENT 有权

    公开(公告)号：US20220084773A1

    公开(公告)日：2022-03-17

    申请号：US17310985

    申请日：2020-03-02

    Applicant: DEXERIALS CORPORATION

    Inventor： Yoshihiro Yoneda ,  Koji Sato

    IPC: H01H85/36 ,  H01H85/00

    Abstract: This protective element includes a fuse element having a first end portion and a second end portion, in which current flows from the first end portion toward the second end portion, a protruding member and a recessed member that are positioned opposing one another so as to sandwich a cutoff portion, and a pressing device that imparts an elastic force that shortens the relative distance in a first direction that represents the direction in which the protruding member and the recessed member sandwich the cutoff portion, wherein at least one pair of opposing surfaces of a protruding portion of the protruding member and a recessed portion of the recessed member that intersect the direction of current flow through the fuse element are positioned close to one another when viewed in a plan view from the first direction, and the fuse element is cut at a temperature equal to or higher than the softening temperature of the material that constitutes the fuse element.

    Protection element
    28.
    发明授权
    Protection element 有权

    公开(公告)号：US10008356B2

    公开(公告)日：2018-06-26

    申请号：US14387797

    申请日：2013-03-27

    Applicant: DEXERIALS CORPORATION

    Inventor： Yoshihiro Yoneda

    IPC: H01H85/06 ,  H01H85/046 ,  H01H37/76 ,  H01H37/04

    Abstract: To achieve a Pb-free protection element, a layered body including a high melting point metal layer and a low melting point metal layer is provided. The protection element includes an insulating substrate, a heating body, an insulating member, two electrodes, a heating body extraction electrode, and a fusible conductor. Furthermore, the fusible conductor includes a layered body including at least a high melting point metal layer and a low melting point metal layer, and the low melting point metal layer is melted by a heat generated by the heating body. While eroding the high melting point metal layer, the low melting point metal layer is drawn close to the side of the two electrodes and the heating body extraction electrode, and fused, the two electrodes and the heating body extraction electrode each having high wettability for the low melting point metal layer.

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