An electric wire manufacturing method includes: a step of placing a core wire including a plurality of strands inside a tubular jig; and a step of forming a joined portion that integrates the strands by emitting laser light along an axial direction of the core wire toward a tip of the core wire placed inside the jig. In the placing step, the core wire is placed with a gap between an inner wall surface of the jig and an outer circumferential surface of the core wire while the tip of the core wire faces upward relative to a horizontal line. In the step of forming the joined portion, the joined portion is formed by filling the gap with a melted substance of the strands.

An electric wire manufacturing method includes a step of placing a core wire having a plurality of strands inside a tubular member capable of transmitting laser light, and a step of forming a joined portion where the strands are joined together by emitting laser light along a direction intersecting an axial direction of the tubular member onto an outer circumferential surface of the core wire placed inside the tubular member. The tubular member is, for example, transparent. The laser light transmitted through the tubular member may be emitted onto the outer circumferential surface of the core wire in the step of forming the joined portion.

A method of manufacturing a terminal-attached electric wire includes: installing an electric wire including a core wire including a plurality of element wires to a terminal having a conductor coupling part having a pair of barrel pieces, the core wire being installed between the pair of barrel pieces; bending the pair of barrel pieces to cause the pair of barrel pieces to wrap around and cover the core wire in a circumferential direction to form a slit extending in an axial direction between the pair of barrel pieces, with respect to the circumferential direction; melting the element wires of the core wire by emitting laser light toward the core wire through the slit; and adhering the element wires melted with the laser light to the conductor coupling part.

A connector assembly includes a first connector having a first connector body and a first connecting portion protruding from the first connector body, a second connector having a second connector body and a second connecting portion protruding from the second connector body, the second connecting portion overlapping the first connecting portion in a direction perpendicular to a central axis of the second connector, and a terminal fastening lance protruding from the first connector body and extending on an inner side of the second connector body. Of the first connecting portion and the second connecting portion, one disposed on a relatively outer side has a transmitting material that allows a laser to pass therethrough and the other disposed on a relatively inner side has an absorbing material that absorbs the laser. The first connecting portion and the second connecting portion are connected to each other through laser welding.

Included are: an electric wire placing step for inserting a core-wire exposing portion of a terminal end of an electric wire between inner wall surfaces of a pair of piece portions of a terminal fitting that has a core wire connector composed of a bottom portion and the piece portions projected from two opposite ends of the bottom portion; and an electric wire holding-down step for holding down, by use of a holding-down jig made of a laser-transmissive material having a higher melting point than the core-wire exposing portion and the core wire connector have, the core-wire exposing portion from one sides of free ends of the piece portions and pressing the core-wire exposing portion against an inner wall surface of the bottom portion by use of the holding-down jig.

An electric power storage device includes at least one electric power storage cell having a first end provided with a first electrode, and a second end provided with a second electrode; a first electrode bus bar that is disposed on a side of the first end and is connected to the first electrode; and a second electrode bus bar that is disposed on a side of the second end and is connected to the second electrode. The first electrode bus bar is provided with a connection line connected to the first electrode. The first electrode bus bar and the second electrode bus bar are joined to each other by ultrasonic joining. A joint portion between the first electrode bus bar and the second electrode bus bar is disposed at a position that is closer to the second end than to the first end.

A method for producing a traction battery of a motor vehicle. At least one cell module having multiple battery cells is arranged in a receptacle compartment of a battery housing of the traction battery. The battery cells are provided with a separate temperature sensor At least one temperature sensor is arranged on a metal carrier in each case and the metal carrier is welded to a cell housing of the respective battery cell.

A medical device lead connector includes electrically conducting contact rings spaced apart by an electrically insulating ring and in axial alignment. The electrically conducting contact ring and the insulating ring having an interface bond on an atomic level.

A robotic wire termination system for efficiently connecting a plurality of wires to an electrical connector. The robotic wire termination system generally includes a frame, a connector support attached to the frame, a robot manipulator having at least one arm, a heating device attached to the at least one arm and a control unit in communication with the robot manipulator to control the operation of the robot manipulator. The arm of the robot manipulator is adapted to move the heating device so that the heating device can apply heat to a selected connector pin of the electrical connector.

A method of assembling a connector for automotive applications, comprising the steps of: providing a cable having at least one inner conductor; connecting an elongated inner signal contact of the connector to a stripped end of the at least one inner conductor; surrounding the elongated inner signal contact by an insulating element; placing a first shielding part of the connector around a first portion of the insulating element from a first radial direction; placing a second shielding part of the connector around a second portion of the insulating element from a second radial direction generally opposite to the first radial direction; and joining the first and second shielding parts to form a shielding contact of the connector surrounding the insulating element.