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    METHOD FOR MANUFACTURING SHUNT RESISTOR
    1.
    发明申请
    METHOD FOR MANUFACTURING SHUNT RESISTOR 审中-公开

    公开(公告)号：US20180286542A1

    公开(公告)日：2018-10-04

    申请号：US15765956

    申请日：2016-10-12

    Applicant: Suncall Corporation

    Inventor： Hiroya KOBAYAKAWA ,  Kenji MURAKAMI

    IPC: H01C17/245 ,  H01C17/28

    Abstract: A manufacturing method of shunt resistor according to the present invention includes a step of calculating a difference between an initial resistance value and a desired resistance value as a resistance value to be adjusted, a step of providing a plurality of recess forming members capable of forming recesses each having a characteristic size in the surface of a resistive alloy plate, a recess determining step of determining the size and the number of the recesses necessary to be formed at the surface of the resistive alloy plate, and a recess forming step of forming the recesses according to the size and the number determined in the recess determining step by using the corresponding recess forming members.

    Resistor and manufacturing method
    2.
    发明授权
    Resistor and manufacturing method 有权

    公开(公告)号：US09793033B2

    公开(公告)日：2017-10-17

    申请号：US14920999

    申请日：2015-10-23

    Applicant: KOA Corporation

    Inventor： Hiroyuki Fukao

    IPC: H01C3/10 ,  H01C1/14 ,  H01C17/242 ,  H01C3/12 ,  H01C7/10 ,  H01C17/065 ,  H01C17/245

    CPC classification number: H01C1/14 ,  H01C3/10 ,  H01C3/12 ,  H01C7/1006 ,  H01C17/065 ,  H01C17/242 ,  H01C17/245

    Abstract: There is provided a resistor in which a first resistive part of a resistive element that electrically conducts between a pair of electrodes formed on either end of an insulating substrate has a meandering pattern meandering on the substrate surface and a swelling pattern that has a form in which a part of the meandering pattern swells out from the stroke width of the meandering pattern, a second resistive part that is electrically connected in series to the first resistive part is shorter than the entire length of the first resistive part, and has a wider width than the stroke width of the meandering pattern, and a trimming groove is formed in at least either the swelling pattern or the second resistive part. This can improve resistance accuracy and provide a high voltage resistor with high withstand voltage property.

    Trimmed surge resistors
    3.
    发明授权
    Trimmed surge resistors 失效
    微调浪涌电阻

    公开(公告)号：US06107909A

    公开(公告)日：2000-08-22

    申请号：US255484

    申请日：1999-02-23

    Applicant: John P. Kosinski

    Inventor： John P. Kosinski

    IPC: H01C17/24 ,  H01C17/245 ,  H01C10/48

    CPC classification number: H01C17/24 ,  H01C17/245 ,  Y10T29/49082

    Abstract: An electrical resistor having a resistance value and capable of withstanding high power surges, utilizing a thick film deposited on a substrate and trimmed with one or more cuts configured to maintain a level of current crowding while increasing the resistance value of the resistor. A surge resistor can be modified in a similar fashion.

    Abstract translation: 一种具有电阻值并且能够承受高功率浪涌的电阻器，利用沉积在衬底上的厚膜并修剪一个或多个切口，其被配置为在增加电阻器的电阻值的同时保持电流拥挤水平。 浪涌电阻可以以类似的方式修改。

    Film-type power resistor
    6.
    发明授权
    Film-type power resistor 失效
    薄膜型电源电阻

    公开(公告)号：US3649944A

    公开(公告)日：1972-03-14

    申请号：US3649944D

    申请日：1970-05-25

    Applicant: RICHARD E CADDOCK

    Inventor： CADDOCK RICHARD E

    IPC: H01C7/00 ,  H01C17/245 ,  H01C1/02

    CPC classification number: H01C17/245 ,  H01C7/00

    Abstract: A film-type power resistor consists of a ceramic wafer or washer having a central opening, one side of such washer being printed at its outer and inner edges with generally annular traces of termination metal. An electrically resistive film is printed on such one side over all portions of, and between, the termination metal, excepting for predetermined adjacent end portions which are connected to radially outwardly extending terminal lugs or leads. In one embodiment, the metal traces are continuous, whereas in another embodiment they are interrupted in order to create series-related resistor portions. The washer (and its associated films) are mounted over a metal base and are embedded in a thermosetting synthetic resin, the base having an upwardly extending central post which passes through the opening in the washer to the upper surface of the resin. In accordance with the method, the planar surface of a ceramic substrate is first printed with termination film traces, following which such traces are overprinted with electrically resistive film. The ceramic (with its associated coatings) is then fired in order to cure the resistive film. Thereafter, the entire outer surface of the resistive film is uniformly abraded by means of a jet of abrasive particles, the abrading continuing in a uniform manner until the resistive film is within the required tolerance. During the abrading step, the terminal regions of the terminal film traces are masked. Thereafter, terminal lugs or leads are connected to such terminal regions.

    Abstract translation: 薄膜型功率电阻器由具有中心开口的陶瓷晶片或垫圈组成，这种垫圈的一侧在其外边缘和内边缘处印刷有大体上环形的端接金属痕迹。 除了与径向向外延伸的端子凸耳或导线连接的预定的相邻端部之外，在该终端金属的所有部分上和之间的一侧上印刷电阻膜。 在一个实施例中，金属迹线是连续的，而在另一个实施例中，它们被中断以产生串联相关电阻器部分。 垫圈（及其相关膜）安装在金属基底上并嵌入热固性合成树脂中，底座具有向上延伸的中心柱，该中心柱通过垫圈中的开口至树脂的上表面。

    Abrading method
    7.
    发明授权
    Abrading method 失效
    抛光方法

    公开(公告)号：US3589081A

    公开(公告)日：1971-06-29

    申请号：US3589081D

    申请日：1969-06-03

    Applicant: PENNWALT CORP

    Inventor： KILISCHENKO WALTER

    IPC: B24C3/06 ,  B24C3/32 ,  H01C17/245 ,  B24C1/00

    CPC classification number: H01C17/245 ,  B24C3/06 ,  B24C3/322

    Abstract: Miniature electrical resistors having a resistive film on a nonconductive substrate are abrasively trimmed to increase their resistance to a desired value by moving an abrasive jet between the resistor terminals, while measuring the rate of resistance increase, and then stopping and reversing the movement of the jet at a projected point in time when resistance has increased to the desired value. Capacitors and other electrical elements can be trimmed by this method.

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