Abstract: A connector structure that can ensure connection is provided. In the connector structure, a bus bar and a plate-like terminal mate with each other to establish an electric connection. A lower-side inner surface as a first inner surface defining the opening is provided with a plurality of conductive rotary members that rotate in a direction substantially perpendicular to a direction in which the plate-like terminal is inserted. It is also provided with a frame member that holds the rotary members and that is connected to the bus bar. The rotary members are twisted relative to the frame member and thereby biased relative to the plate-like terminal. By the plate-like terminal being inserted into and pulled out from the bus bar, the rotary members receive force from the plate-like terminal and rotate within a plane substantially perpendicular to a direction in which the plate-like terminal is inserted and pulled out.

Abstract: A conductive portion of a wire, composed of a plurality of core wires, is inserted and fitted into a groove in a pressing die, thereby restricting the conductive portion to a bonding width of a terminal, and in this condition with the use of a press forming machine, the conductive portion is pressed in a thickness direction thereof to be formed into a flat shape. Thereafter, the conductive portion is inserted and fitted into the terminal, and then the conductive portion, while pressed by a pressing vibration horn, is bonded to the terminal by ultrasonic vibrations applied from the pressing vibration horn.

Abstract: A welding terminal for electrically connecting a conductor portion of a wire includes a terminal base plate portion, on which the conductor portion is placed for welding and a pair of side walls, formed on opposite side edges of the terminal base plate portion so as to stand perpendicularly. The wire has a plurality of conductors covered with a insulating sheath. Each corner portion formed by the each side wall and terminal base plate portion has a rounded shape in cross section.

Abstract: After bringing a conductor of an electric wire into press contact to connect with a wire caulking portion of a connection terminal, the conductor and the wire caulking portion are welded to connect by irradiating laser beam to a bottom wall of the wire caulking portion. Laser irradiation is carried out intermittently by three times and the laser irradiation at the second time and thereafter which is carried out later is carried out such that during a time period in which a laser welded portion immediately previously is brought into a predetermined state of elevating temperature, portions or welded regions overlap welded regions in laser irradiation irradiated previously.

Abstract: An apparatus of determining acceptability of a press contact terminal including press contact blades which are separated from each other when the wire is inserted between the press contact blades so that a core wire is electrically connected to the press contact terminal, includes: a storing unit which stores a reference data showing a relationship between displacements of the blades when the wire is brought into press contact with a normal one of the terminal and contact loads between the blades and the core wire; an inserting unit which holds the terminal and inserts the wire between the blades; a measuring unit which measures the displacement of the blades caused by the insertion of the wire; and a predication determining unit which determines the acceptability of the terminal by predicting the contact loads and the core wire based on the displacement and the reference data.

Abstract: A press-clamping terminal of the invention is press-fastened at its conductor-clamping portion on an outer periphery of a conductor part of a wire so as to be electrically connected to the conductor part. A plating layer is formed at least on an inner surface of the conductor-clamping portion for contact with the conductor part, the plating layer being harder than a passivation layer formed on a surface of the conductor part, and being excellent in electrical conductivity. With this construction, the hard plating layer fractures the passivation layer upon press-fastening of the conductor-clamping portion on the conductor part of the wire, thereby providing the good press-clamping condition in which any passivation layer, increasing the contact resistance, is not interposed between the press-clamping terminal and the conductor part.

Abstract: A press-clamping terminal of the invention is press-fastened at its conductor-clamping portion on an outer periphery of a conductor part of a wire so as to be electrically connected to the conductor part. A plating layer is formed at least on an inner surface of the conductor-clamping portion for contact with the conductor part, the plating layer being harder than a passivation layer formed on a surface of the conductor part, and being excellent in electrical conductivity. With this construction, the hard plating layer fractures the passivation layer upon press-fastening of the conductor-clamping portion on the conductor part of the wire, thereby providing the good press-clamping condition in which any passivation layer, increasing the contact resistance, is not interposed between the press-clamping terminal and the conductor part.

Abstract: After bringing a conductor of an electric wire into press contact to connect with a wire caulking portion of a connection terminal, the conductor and the wire caulking portion are welded to connect by irradiating laser beam to a bottom wall of the wire caulking portion. Laser irradiation is carried out intermittently by three times and the laser irradiation at the second time and thereafter which is carried out later is carried out such that during a time period in which a laser welded portion immediately previously is brought into a predetermined state of elevating temperature, portions or welded regions overlap welded regions in laser irradiation irradiated previously.

Abstract: A method of joining a wire includes the steps of: providing the wire having a conducting portion consisting of a plurality of core wires, restricting a width of the conducting portion, pressing the core wires of the conducting portion restricted in the restricting step, and joining the pressed core wires of the conducting portion each other so that the conducting portion is integrally formed into a flat plate-shape.

Abstract: A method of connecting a terminal fitting and an electric wire, includes the steps of: providing a terminal fitting; providing an electric wire in which a core wire is covered with an insulating sheath; providing a conductive connecting member formed with an insertion hole; inserting the electric wire into the insertion hole of the connecting member; compressing the connecting member radially inwardly so as to caulk an inserted portion of the electric wire uniformly over a whole periphery thereof; and welding the connecting member and the terminal fitting by applying ultrasonic wave.

Abstract: A welding terminal for electrically connecting a conductor portion of a wire includes a terminal base plate portion, on which the conductor portion is placed for welding and a pair of side walls, formed on opposite side edges of the terminal base plate portion so as to stand perpendicularly. The wire has a plurality of conductors covered with a insulating sheath. Each corner portion formed by the each side wall and terminal base plate portion has a rounded shape in cross section.

Abstract: A terminal material is composed of a base material and a plurality of plating layers provided on the base material and containing an Sn-plating layer as its outermost layer. When the plating layers include an Ni-plating layer, the plating layers are formed so that the Sn-plating layer does not come in contact with the Ni-plating layer. A crimp portion of a crimp terminal is formed of the terminal material.

Abstract: An insulation displacement contact terminal has a bottom plate, a pair of side plates, a pair of contact plates, and projecting portions. The side plates respectively extend from both side edges of the bottom plate and oppose each other. The contact plates are respectively partly bent from the side plates and oppose each other. Between the contact plates and the bottom plate are formed gaps. The gaps permit the contact plates to be moved in the direction of their being moved toward each other. Mutually opposing edges of the contact plates define a slot for receiving a clad electric wire therein. The clad electric wire has a core wire and a clothing portion that clothes the core wire. The width of the slot decreases with the movement of the contact plates. With the press insertion of the clad electric wire into the slot, the edges cut into the clothing portions and contact with the core wire. The projecting portions respectively project from the contact plates.

Abstract: An insulation displacement contact terminal has a bottom plate, a pair of side plates, a pair of contact plates, and projecting portions. The side plates respectively extend from both side edges of the bottom plate and oppose each other. The contact plates are respectively partly bent from the side plates and oppose each other. Between the contact plates and the bottom plate are formed gaps. The gaps permit the contact plates to be moved in the direction of their being moved toward each other. Mutually opposing edges of the contact plates define a slot for receiving a clad electric wire therein. The clad electric wire has a core wire and a clothing portion that clothes the core wire. The width of the slot decreases with the movement of the contact plates. With the press insertion of the clad electric wire into the slot, the edges cut into the clothing portions and contact with the core wire. The projecting portions respectively project from the contact plates.

Abstract: A terminal material is composed of a base material and a plurality of plating layers provided on the base material and containing an Sn-plating layer as its outermost layer. When the plating layers include an Ni-plating layer, the plating layers are formed so that the Sn-plating layer does not come in contact with the Ni-plating layer. A crimp portion of a crimp terminal is formed of the terminal material.