FUSE ELEMENT, FUSE DEVICE AND PROTECTION DEVICE

    公开(公告)号:US20220230830A1

    公开(公告)日:2022-07-21

    申请号:US17596329

    申请日:2020-06-02

    Inventor: Yoshihiro Yoneda

    Abstract: A fuse element (10) includes a low-melting-point metal layer (11), a high-melting-point metal layer (12) laminated on at least one surface of the low-melting-point metal layer (11), and an intermediate layer (13) disposed between the low-melting-point metal layer (11) and the high-melting-point metal layer (12), in which the high-melting-point metal layer (12) and the intermediate layer (13) are layers formed of a metal which is melted by a molten material of the low-melting-point metal layer (11), and the intermediate layer (13) has a higher ionization tendency than an ionization tendency of the high-melting-point metal layer (12).

    PROTECTIVE ELEMENT
    34.
    发明申请

    公开(公告)号:US20220199346A1

    公开(公告)日:2022-06-23

    申请号:US17593893

    申请日:2020-03-19

    Inventor: Yoshihiro Yoneda

    Abstract: This protective element includes a first electrode portion, a second electrode portion disposed distant from the first electrode portion, a fuse element portion having spring characteristics, and a case that houses at least a portion of the fuse element portion, wherein the fuse element portion includes a first end section that is connected to the first electrode portion, a second end section that is connected to the second electrode portion, and a cutoff section that is positioned between the first end section and the second end section, and the fuse element portion is held inside the case in a bent state such that, when the fuse element portion is cut, both cut ends of the cutoff section are pulled apart from each other.

    Protection circuit and photovoltaic system

    公开(公告)号:US11296496B2

    公开(公告)日:2022-04-05

    申请号:US16971462

    申请日:2019-01-25

    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.

    Fuse device
    36.
    发明授权

    公开(公告)号:US10727019B2

    公开(公告)日:2020-07-28

    申请号:US15766870

    申请日:2016-10-05

    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.

    Fuse element, fuse device, and heat-generator-integrated fuse device

    公开(公告)号:US10707043B2

    公开(公告)日:2020-07-07

    申请号:US15514616

    申请日:2015-09-24

    Inventor: Yoshihiro Yoneda

    Abstract: A fuse device and a fuse element having excellent rapid blowout properties and excellent insulation properties after blowout even in a size-reduced fuse device are provided. A fuse element constitutes a current path of a fuse device and blows out due to self-generated heat when a rating-exceeding current flows, a length W in a width direction perpendicular to a conduction direction being greater than a total length L in the conduction direction in the fuse element. In particular, the fuse element includes a low melting point metal layer and a high melting point metal layer, the low melting point metal layer eroding the high melting point metal layer when current flows to cause blowout.

    Current fuse
    39.
    发明授权

    公开(公告)号:US10170267B2

    公开(公告)日:2019-01-01

    申请号:US15027053

    申请日:2014-10-07

    Inventor: Yoshihiro Yoneda

    Abstract: Provided is a current fuse that can improve the rating while also preventing explosive scattering of metal in association with arc discharge and enabling reliable cutting off of a circuit. The current fuse (1) includes an insulating substrate (2), a main fuse element (3) disposed on the insulating substrate (2), and a sub-fuse element (4) disposed on the insulating substrate (2) and having a higher melting point than the main fuse element (3). The main fuse element (3) and the sub-fuse element (4) are connected in parallel.

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