Electrical connections
    61.
    发明授权
    Electrical connections 失效
    电气连接

    公开(公告)号:US3702387A

    公开(公告)日:1972-11-07

    申请号:US3702387D

    申请日:1971-06-04

    Inventor: KLEIN LEO I

    Abstract: In an electric resistance heating element, the invention relates to the assembly of a resistor coil to a terminal pin to provide mechanical and electrical connection therebetween. The assembly is particularly suited for use in strip heaters wherein the coil is connected to the flat head of a terminal bolt. A group of convolutions of the resistor coil are flattened against the bolt head and welded thereto by a resistance welding operation. In the method disclosed, the shank of the bolt is disposed within an opening in one welding electrode of a welding machine with the bolt head overlying the tip of such electrode, and the group of convolutions of the coil are placed against the flat surface of the bolt head. The other welding electrode has a rounded tip and as this electrode is moved toward said one electrode, its rounded tip flattens the group of convolutions in overlapping relation on the flat surface of the bolt head. With the flattened convolutions and the bolt head firmly gripped between the welding electrodes, welding current is caused to flow between the electrodes to weld the flattened convolutions to the flat surface of the bolt head. Those flattened convolutions at the center of the rounded tip of said other electrode are fully fused to the flat surface of the bolt head, whereas the convolutions off the center of such rounded tip have a stick weld to the flat surface. Thus, not only is a low resistance electrical connection made by the fully fused convolutions, but a good mechanical connection is made by the stick-welded convolutions.

    Abstract translation: 在电阻加热元件中,本发明涉及将电阻器线圈组装到端子销以在它们之间提供机械和电气连接。 组件特别适用于带式加热器,其中线圈连接到端子螺栓的平头。

    Connecting device and method of production
    65.
    发明授权
    Connecting device and method of production 失效
    连接装置和生产方法

    公开(公告)号:US2711915A

    公开(公告)日:1955-06-28

    申请号:US14943650

    申请日:1950-03-13

    Inventor: AVERSTEN KARL J

    CPC classification number: B60M5/00 B23K3/08 B23K2201/38 Y10T403/479

    Abstract: 681,586. Soldering. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Nov. 3, 1950 [Nov. 3, 1949 ; Feb. 13, 1950], No. 26907/50. Class 83 (iv). A method of making a soldered joint between two metallic members in one of which an aperture is provided comprises inserting a metal pin consisting of two axially disposed parts with different melting- points, the part having the lower melting-point being melted to form, on solidification, a soldered joint between the high melting-point part of the pin and adjacent surfaces of the metallic members. For joining a metal plate 1 and a beam 2 an aperture is made in the plate 1 and a metal pin, comprising a part 3 of steel, brass or copper and a part 4 of solder (Fig. 2) is placed in an electric-arc apparatus and inserted in the aperture so as to rest on the beam 2. On initiation of the arc the solder part of the pin melts and forms, on solidification, a joint between the plate, beam and the pin. In another embodiment an electrical connector comprising a copper wire 5 having contact shoes 6 at each end is attached to a rail, beam, tube, &c. by inserting a metal pin 11 (Fig. 5) through an aperture 10 in the contact shoes and effecting a soldered joint as hitherto. The pin 11 may be of bronze having a solder portion 12 which carries a flux 13 in a recess covered by a lid 14 also of solder. An annular notch 15 in the pin enables the part 10 to be broken off after soldering. The contact shoes may be provided with a flux 17 (Fig. 8) which is retained between solder covers 18 and 18a pressed into the aperture below the surface 7. For this connection a pin of the type shown in Fig. 2 may be used. The cover 18 may be bowl-shaped to receive the flux and enclosed by a flat cover held by turning over the rim of the bowl-shaped cover 18. Specification 681,585 is referred to.

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