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    Integral sensor for monitoring a metal oxide varistor
    41.
    发明授权
    Integral sensor for monitoring a metal oxide varistor 失效
    用于监测金属氧化物变量的集成传感器

    公开(公告)号：US3742419A

    公开(公告)日：1973-06-26

    申请号：US3742419D

    申请日：1971-09-30

    Applicant: GEN ELECTRIC

    Inventor： MARTZLOFF F

    IPC: H01C7/10 ,  H01C7/102

    CPC classification number: H01C7/102

    Abstract: A body of sintered metal oxide material having first and second opposed surfaces and a third surface disposed therebetween has first and second electrodes in contact with the first two opposed surfaces for establishing a main conductive path through the device and a third electrode in contact with one of the two opposed surfaces and spaced very close to the corresponding electrode for establishing a monitoring conductive path for sensing the operating temperature of the body as a function of the resistance thereof. The monitoring path may also be established by a pair of third electrodes positioned on opposite sides of the surface interconnecting the first two surfaces whereby the monitoring path intersects the main conductive path. The sintered metal oxide material has varistor characteristics.

    Multilayer varistor and method for manufacturing a multilayer varistor
    45.
    发明授权
    Multilayer varistor and method for manufacturing a multilayer varistor 有权

    公开(公告)号：US11901100B2

    公开(公告)日：2024-02-13

    申请号：US17638635

    申请日：2021-07-26

    Applicant: TDK Electronics AG

    Inventor： Hermann Grünbichler ,  Jaromir Kotzurek ,  Franz Rinner

    IPC: H01C7/10 ,  H01C7/102 ,  H01C7/112 ,  H01C7/18 ,  H01C17/065

    CPC classification number: H01C7/1006 ,  H01C7/102 ,  H01C7/112 ,  H01C7/18 ,  H01C17/06546

    Abstract: In an embodiment a method for manufacturing a multilayer varistor includes providing a first ceramic powder for producing a first ceramic material and at least one second ceramic powder for producing a second ceramic material, wherein the ceramic powders differ from each other in concentration of monovalent elements X+ by 50 ppm≤Δc(X+)≤5000 ppm, wherein X+=(Li+, Na+, K+ or Ag+), and wherein Δc denotes a maximum concentration difference occurring between an active region and a near-surface region of the multilayer varistor, slicking of the ceramic powders and forming of green films, partially printing of a part of the green films with a metal paste to form inner electrodes, stacking printed and unprinted green films, laminating, decarbonizing and sintering the green films and applying outer electrodes.

    MULTILAYER VARISTOR
    46.
    发明公开
    MULTILAYER VARISTOR 审中-公开

    公开(公告)号：US20230326636A1

    公开(公告)日：2023-10-12

    申请号：US18182134

    申请日：2023-03-10

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Masashi TAKAMURA ,  Yuto AKIYAMA ,  Ken YANAI

    IPC: H01C7/112 ,  H01C7/10 ,  H01C7/102 ,  H01C1/14

    CPC classification number: H01C7/1006 ,  H01C1/14 ,  H01C7/102 ,  H01C7/112

    Abstract: A multilayer varistor includes a sintered body and a first internal electrode, a second internal electrode, a third internal electrode, and a fourth internal electrode which are disposed in the sintered body. The first internal electrode, the second internal electrode, the third internal electrode, and the fourth internal electrode are arranged in an order of the first internal electrode, the third internal electrode, the fourth internal electrode, and the second internal electrode from a side of a first main face. The third internal electrode and the fourth internal electrode are electrically connected to each other. At least part of the first internal electrode and at least part of the third internal electrode overlap each other when viewed in a third direction. At least part of the second internal electrode and at least part of the fourth internal electrode overlap each other when viewed in the third direction.

    VARISTOR DEVICE
    48.
    发明申请
    VARISTOR DEVICE 审中-公开

    公开(公告)号：US20170338013A1

    公开(公告)日：2017-11-23

    申请号：US15670608

    申请日：2017-08-07

    Applicant: POWERTECH INDUSTRIAL CO., LTD.

    Inventor： JUNG-HUI HSU

    IPC: H01C1/144 ,  H01C7/12 ,  H01C7/102

    CPC classification number: H01C1/144 ,  H01C7/102 ,  H01C7/126

    Abstract: A varistor device includes a main body, a conductive area, a specific-melting-point metallic pin, and an elastic unit. The main body has a first surface, and the conductive area is located at the first surface. The specific-melting-point metallic pin has a first section and a second section. The first and the second sections are one-piece formed. The first section is fixedly disposed on the conductive area. The second section has a specific melting point such that the second section melts when a current flows between the first surface and the second section so as to expose the second section to a temperature greater than the specific melting point. The elastic unit has an end connected to the second section, and the elastic unit provides an elastic force to the second section to break the second section so as to cut off the current when the second section melts.

    THERMAL METAL OXIDE VARISTOR CIRCUIT PROTECTION DEVICE
    49.
    发明申请
    THERMAL METAL OXIDE VARISTOR CIRCUIT PROTECTION DEVICE 审中-公开

    公开(公告)号：US20170110279A1

    公开(公告)日：2017-04-20

    申请号：US15392192

    申请日：2016-12-28

    Applicant: Littelfuse, Inc.

    Inventor： Wen Yang ,  Hailang Tang ,  Hongbing Liu

    IPC: H01H85/02 ,  H01C1/14 ,  H01H85/04 ,  H01C7/112 ,  H01C7/12

    CPC classification number: H01H37/761 ,  H01C7/10 ,  H01C7/102 ,  H01C7/12 ,  H01C7/126 ,  H01H9/32 ,  H01H61/02 ,  H01H2037/762

    Abstract: Exemplary embodiments of the present invention are directed to a circuit protection device, A circuit protection device may comprise a housing defining a cavity and a metal oxide varistor (MOV) disposed within the cavity. The circuit protection device may further comprise a first terminal electrically attached at a first end to the MOV by solder and extending outside of the housing at a second end. An arc shield is disposed within the housing between the first end of the first terminal and at least partially over the solder. The circuit protection device may further comprise a spring configured to bias the arc shield against a micro switch having an indicator portion disposed at least partially outside of the housing. When a voltage surge condition occurs, the MOV changes from a non-conductive state to a conductive state and current flows between the first terminal and a second terminal where the heat generated by the current flowing through the varistor melts the solder and the first end of the first terminal electrically separates from the varistor.

    Method for Fabricating a Varistor Device and Varistor Device
    50.
    发明申请
    Method for Fabricating a Varistor Device and Varistor Device 有权
    制造压敏电阻器件和压敏电阻器件的方法

    公开(公告)号：US20160307673A1

    公开(公告)日：2016-10-20

    申请号：US15102645

    申请日：2014-11-13

    Applicant: EPCOS AG

    Inventor： Dennis Sun ,  Jamie Jing ,  Qirong Li

    IPC: H01C7/102 ,  H01C17/28 ,  H01C17/30 ,  H01C1/142

    CPC classification number: H01C7/102 ,  H01C1/142 ,  H01C1/144 ,  H01C17/28 ,  H01C17/281 ,  H01C17/283 ,  H01C17/30

    Abstract: A method for fabricating a varistor device is presented. In an embodiment the method includes providing a base body for the varistor device, wherein the base body comprises a ceramic material, providing a basic material for a base metal electrode region on the base body, exposing the base body with the basic material to a temperature under a protective gas atmosphere such that the base metal electrode region is formed and firmly connected to the base body and completing the varistor device.

    Abstract translation: 提出了一种用于制造变阻器装置的方法。 在一个实施例中，该方法包括提供用于压敏电阻器件的基体，其中基体包括陶瓷材料，为基体上的基底金属电极区提供基本材料，将基体与碱性材料暴露于温度 在保护气体气氛下，使得基底金属电极区域形成并牢固地连接到基体并完成压敏电阻器件。

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