The invention relates to a device for electrically conductive connecting, by means of ultrasonic welding, of first electric conductors (140, 142) and second electric conductors (144, 146) in a compression space the cross section of which can be changed and which comprises at least one lateral slide, a sonotrode and a counter electrode, wherein firstly, blank ends of the first electric conductors (140, 142) are introduced into the compression space and are welded by means of ultrasonic action to form a first connection (148) and then after the first connection has been removed from the compression space, blank ends of the second electric conductors (144, 146) are introduced into same and are welded by means of ultrasonic action to form a second connection, wherein the first connection is fed to a retaining device (182, 184) before the second connection is welded.

The present disclosure provides a connection terminal and a wire harness that make it possible to suppress reductions in the reliability of connection to a mating terminal. A wire harness 10 that includes an electric wire 20 that has a core wire 21 and an insulating coating 22 that coats the outer circumference of the core wire 21, a connection terminal 30 that is electrically connected to the core wire 21 as exposed from the insulating coating 22, and a cylindrical shrink tube 70 that covers the connection 60 between the core wire 21 and the connection terminal 30. The connection terminal 30 includes an electric wire connection part 31 that is electrically connected to the core wire 21 of the electrical wire 20, a terminal connection part 50 that is to be connected to a mating terminal, and an intermediate linking part 40 that is between the electric wire connection part 31 and the terminal connection part 50 and links the electric wire connection part 31 and the terminal connection part 50. The shrink tube 70 includes a heat-shrink tube 71 and an adhesive 72 that is formed on an inner circumferential surface of the heat-shrink tube 71. The intermediate linking part 40 has grooves 42 that are formed in upper and lower surfaces of a portion that is exposed from the heatshrink tube 71.

A structure for connecting an aluminum cable and a terminal includes an aluminum cable and a terminal. The aluminum cable includes a cable core. The cable core is constructed with a cable welding portion. The terminal is welded to the cable welding portion. A nominal cross-sectional area of the cable core is M, and a welding area S between the cable welding portion and the terminal meets 5*M≤S≤6*M.

A busbar is placed on an anvil, and a core wire of a cable is placed on the busbar. While the core wire is pressed onto the busbar using a horn chip, ultrasonic vibration is given to the core wire to join the core wire to the busbar. The horn chip has two flat portions and a recessed portion located between the flat portions. When the core wire is pressed onto the busbar using the horn chip, each of the flat portions and the busbar sandwich a part of the core wire therebetween while the recessed portion and the busbar put a remaining part of the core wire therebetween. Each of the sandwiched parts of the core wire does not reach an outer end of the corresponding flat portion to leave a space between the corresponding flat portion and the busbar.

An objective of the present invention is to provide a terminal connecting structure which may enable the conductivity to be improved. A terminal connecting structure is intended for connecting a terminal to an electric wire, the electric wire including an aluminum conductor with aluminum, wherein the terminal connecting structure further comprises a conductive connection body formed with aluminum, wherein one end of the connection body is butt-connected to the aluminum conductor, and wherein another end of the connection body is connected to the terminal via crimping. This enables the terminal to be connected to the electric wire via the connection body without crimping the bundle of cores. This may eliminate influence of crimping on the aluminum conductor and enable the conductivity between the electric wire and the terminal to be improved.

An electrical power contact, for a fixed electrical outlet of a vehicle for connecting a battery of the vehicle to an external DC electrical source, consists of two conductive parts mechanically cold-assembled through snap-riveting, connecting part and a connection terminal. A first of the two conductive parts is provided with a shoulder and with a protruding portion protruding with respect to the shoulder, the other conductive part comprising a wall having a bearing face bearing against the shoulder and a free face opposite the bearing face. The wall is has a through-hole opening onto a counterbore forming a recess for the free face. The protruding portion passes through the through-hole and has a head housed in the counterbore.

A welded body manufacturing method for a welded body in which a terminal formed of a metal base material and plated with a metal material having a hardness lower than a hardness of the metal base material is connected to an end portion of a conductive member, the conductive member being connected to the terminal on a conductor welding surface of the terminal is provided. The manufacturing method includes forming at least one of a convex portion and a concave portion on the conductor welding surface and connecting the conductive member to the conductor welding surface by means of ultrasonic welding.

A first flexible electronic circuit includes a non-conductive substrate and a conductive trace layer, including a bonding pad, on a surface of the non-conductive substrate. A second flexible electronic circuit likewise includes a substrate and a conductive trace layer, including a bonding pad, on a surface of the non-conductive substrate. The second flexible electronic circuit also includes a conductive interface layer on an opposite surface of the non-conductive substrate to the bonding pad. A plurality of vias, filled with conductive material, extend through the substrate of the second flexible electronic circuit and couple the conductive interface layer to the bonding pad. The bonding pads are brought in contact with each other, and energy (e.g., ultrasonic energy or thermal energy) is applied to the conductive interface layer until the bonding pads are bonded (e.g., ultrasonically welded or soldered) to each other.

A method of manufacturing an electrical connector includes: contacting an end portion of a center conductor exposed in an end portion of a coaxial cable having the center conductor with a conductive contact; applying ultrasonic vibration to the end portion of the center conductor and the contact to join the end portion of the center conductor and the contact each other; and accommodating the contact in an insulation housing after the end portion of the center conductor and the contact are joined to each other, and covering at least a part of a joint of the end portion of the center conductor and the contact with the insulation housing.

A method includes disposing a terminal pin on an electronic substrate with a base region of the terminal pin in contact with a circuit trace on an electronic substrate, and ultrasonically coupling the base region of the terminal pin to the circuit trace.