A connector assembly of two low temperature superconducting cable terminals and manufacturing method thereof. A connector assembly comprises a copper layer having one side which is conducted with one low temperature superconducting cable and another side which is conducted with another low temperature superconducting cable, two welding material layers, wherein each the welding material layer is provided between the copper layer and either of the two low temperature superconducting cable, and a clip mechanism covered the outer surface of either of the low temperature superconducting cable to tightly clamp the copper layer, the two welding material layers and the two low temperature superconducting cable form the inside to the outside of the connector assembly. The connector assembly of the present invention has compact structure. The saddle-shaped copper block is compressed by a clamp mechanism is use to weld with two low temperature superconducting terminals.

In a terminal-attached electric wire applied to a wire harness, a metal terminal includes: an electric wire connection portion to which the electric wire is connected; a box-shaped portion that is formed into a box shape by a bottom body coupled to the electric wire connection portion and a pair of wall bodies formed by protruding individually from both ends of the bottom body in a width direction, and enables a counterpart terminal to be inserted into a terminal insertion space portion in an inside thereof along an axial direction intersecting the width direction; and a spring contact portion that is located inside the terminal insertion space portion, is elastically deformably supported in the box-shaped portion in a cantilever manner, and forms a contact with the counterpart terminal, and wherein the box-shaped portion has a displacement regulating portion that regulates a relative displacement between the pair of the wall bodies.

A method of connecting a fine wire to an ultrafine wire, the fine wire exhibiting a first cross-section and the ultrafine wire exhibiting a second cross-section, the second cross-section smaller than the first cross-section, the method constituted of: providing an uninsulated portion of the fine wire exhibiting a flat surface; depositing a conductive material on the flat surface of the provided uninsulated portion of the fine wire; providing an uninsulated portion of the ultrafine wire; and bonding the provided uninsulated portion of the ultrafine wire to the deposited conductive material on the flat surface of the provided uninsulated portion of the fine wire by thermocompression.

A bonding method for a conductor of an electric wire includes a conductor formed of a plurality of strands and a sheath covering the conductor such that the conductor is exposed to a predetermined length. The bonding method ultrasonically bonds the plurality of strands of the electric wire to each other using an anvil and a horn. When the strands are ultrasonically bonded to each other by clamping a part of the conductor exposed from the sheath between the anvil and the horn throughout a predetermined length and ultrasonically vibrating the horn, a distance from the anvil or the horn to the sheath of the electric wire is shorter than a length of the strands when the strand vibrates in a primary mode by ultrasonic vibration.

This wire harness comprises an electroconductive path 10A formed into an elongated shape, and a pair of terminal parts 70, respectively connected at both end sections of the electroconductive path 10A. The electroconductive path 10A has a plurality of split electric wires 30, 40, routed in parallel between the pair of terminal parts 70. The split electric wire 30 has a core wire 31 and an insulation cover 32 covering the core wire 31. The split electric wire 40 has a core wire 41 and an insulation cover 42 covering the core wire 41.

A bonding method for a conductor of an electric wire includes a conductor formed of a plurality of strands and a sheath covering the conductor such that the conductor is exposed to a predetermined length. The bonding method ultrasonically bonds the plurality of strands of the electric wire to each other using an anvil and a horn. When the strands are ultrasonically bonded to each other by clamping a part of the conductor exposed from the sheath between the anvil and the horn throughout a predetermined length and ultrasonically vibrating the horn, a distance from the anvil or the horn to the sheath of the electric wire is shorter than a length of the strands when the strand vibrates in a primary mode by ultrasonic vibration.

A wire harness that includes a first wire and a second wire each including a core wire and a covering material that covers the core wire; and a tube, wherein: the tube covers a connection between the core wire of the first wire and the core wire of the second wire, each of the covering materials contains a cross-linked polyethylene, the tube contains a cross-linked polyethylene, the tube and each of the covering materials are directly joined, and a tensile shear strength between the tube and each of the covering materials is 350 kPa or more.

An automotive electric motor with a mechanical commutation. The automotive electric motor includes a stiff coil wire comprising a welding portion and an end portion which is arranged adjacent to the welding portion, and a flexible braid wire with a wire end which is electrically and mechanically connected to the stiff coil wire at the welding portion via a welding. The end portion of the stiff coil wire includes an end surface. The end portion of the stiff coil wire is bent in relation to the welding portion so that the end portion is bent away from the flexible braid wire and the end surface of the end portion of the stiff coil wire does not face the flexible braid wire.

An electrical cable arrangement comprises a dimensionally stable flat conductor bar with a flat conductor shield; at least one electric cable connected thereto and having a cable shield; and a shield housing made of an aluminum material and having a first housing part and a second housing part. Between the housing parts a closed accommodating chamber is formed for a connecting section between the flat conductor bar and the cable. When in the installed state, the flat conductor bar and the cable are each clamped tight between the housing parts by an end face section in such a manner that the flat conductor shield and the cable shield are directly or indirectly interconnected for the shield transition.

Provided is a laser welding method for flat wires in which side surfaces at ends of first and second flat wires coated with insulating films, the side surfaces being stripped of the insulating films, are butted together, and a laser beam is applied to end surfaces of the first and second flat wires to weld together the side surfaces. This method includes: applying the laser beam in a loop shape inside the end surface of the first flat wire to form a molten pool; and gradually increasing the diameter of a loop-shaped application trajectory of the laser beam inside the end surface of the first flat wire to allow the molten pool to reach the side surfaces.