An electrical connector includes a contact button having a first layer formed of a first electrically conductive material that is attached to a first electrical bus bar and having a second layer formed of a second electrically conductive material clad to the first layer. The electrical connector includes a clamp assembly including a retaining band surrounding the contact button and the first electrical bus bar and having a spring configured to provide a contact force between the contact button and a second electrical bus bar when the second electrical bus bar is disposed between the contact button and the spring.

An electrical connector includes a contact button having a first layer formed of a first electrically conductive material that is attached to a first electrical bus bar and having a second layer formed of a second electrically conductive material clad to the first layer. The electrical connector includes a clamp assembly including a retaining band surrounding the contact button and the first electrical bus bar and having a spring configured to provide a contact force between the contact button and a second electrical bus bar when the second electrical bus bar is disposed between the contact button and the spring.

The outer layer is peeled exactly a predetermined length from the end portion of the electromagnetic shielding tube. That is, the metal layer is exposed exactly a predetermined range at the end portion of the electromagnetic shielding tube. A flexible conductor is connected to the exposed metal layer. A separated portion is provided in the inner layer. The separated portion is formed along the length direction of the electromagnetic shielding tube. Additionally, a depth of the separated portion is the same value as the thickness of the inner layer. As such, the inner surface of the metal layer is exposed at the separated portion. It is preferable that the separated portion be formed at a plurality of locations in the circumferential direction. The inner layer is divided into a plurality of sections in the circumferential direction by the separated portion. The separated portion is a terminal processed portion, which mitigates the effects caused by differences in the physical properties of the inner layer and the metal layer.

A terminal is provided with a terminal body including a mating connecting portion, a wire connecting portion and a coupling portion, and a shell. The wire connecting portion includes sandwiching portions extending in an extending direction of a wire and configured to sandwich the wire. The shell includes pressurizing portions for pressurizing the sandwiching portions toward the wire. The mating connecting portion includes a mating bottom wall and mating side walls formed to rise upward in a predetermined rising direction from the mating bottom wall. The wire connecting portion includes a wire-side bottom wall and wire-side side walls rising upward in the rising direction from the wire-side bottom wall. The coupling portion is inclined in a direction opposite to the rising direction from the wire-side bottom wall toward the mating bottom wall to couple the wire-side bottom wall and the mating bottom wall.

A terminal is provided with a terminal body including a mating connecting portion, a wire connecting portion and a coupling portion, and a shell. The wire connecting portion includes sandwiching portions extending in an extending direction of a wire and configured to sandwich the wire. The shell includes pressurizing portions for pressurizing the sandwiching portions toward the wire. The mating connecting portion includes a mating bottom wall and mating side walls formed to rise upward in a predetermined rising direction from the mating bottom wall. The wire connecting portion includes a wire-side bottom wall and wire-side side walls rising upward in the rising direction from the wire-side bottom wall. The coupling portion is inclined in a direction opposite to the rising direction from the wire-side bottom wall toward the mating bottom wall to couple the wire-side bottom wall and the mating bottom wall.

The problem is to attain a joint for multi-core superconducting wires having a high critical current property. The joint for superconducting wires of the present invention has a first sintered body containing MgB.sub.2 configured to fix a plurality of superconducting wires, and a second sintered body containing MgB.sub.2 configured to joint the superconducting wires.

The problem is to attain a joint for multi-core superconducting wires having a high critical current property. The joint for superconducting wires of the present invention has a first sintered body containing MgB.sub.2 configured to fix a plurality of superconducting wires, and a second sintered body containing MgB.sub.2 configured to joint the superconducting wires.

A contact is accommodated in a contact accommodating portion of a second insulator, an end portion of an electric wire is accommodated in an opened electric-wire-end-portion accommodating portion of a projection of a first insulator, the projection is accommodated in a projection accommodating portion of a contact with a flexible conductor being sandwiched therebetween and such that the opened electric-wire-end-portion accommodating portion is opposed to an electric-wire connection piece of the contact, the electric wire extends from the electric-wire-end-portion accommodating portion and makes contact with an electric-wire contact portion of the electric-wire connection piece of the contact, and a part of the flexible conductor is sandwiched between an outer surface of the projection and a conductor contact piece of the contact and makes contact with the conductor contact piece of the contact, whereby the electric wire is electrically connected to the flexible conductor via the contact.

A connector device includes a housing, a plurality of first couplers each of which has a first coupling part electrically coupled to a first counterpart coupler of a counterpart connector device, a plurality of second couplers each of which has a second coupling part electrically coupled to a second counterpart coupler of the counterpart connector device, and a ground member electrically coupled to a counterpart ground member of the counterpart connector device. The first coupling parts are arranged side by side so as to be exposed from the housing along a first surface. The second coupling parts are arranged side by side so as to be exposed from the housing along a second surface. The ground member is arranged between the first couplers and the second couplers, and is arranged along a coupling direction in which the connector device and the counterpart connector device are coupled to each other.

A connector device includes a housing, a plurality of first couplers each of which has a first coupling part electrically coupled to a first counterpart coupler of a counterpart connector device, a plurality of second couplers each of which has a second coupling part electrically coupled to a second counterpart coupler of the counterpart connector device, and a ground member electrically coupled to a counterpart ground member of the counterpart connector device. The first coupling parts are arranged side by side so as to be exposed from the housing along a first surface. The second coupling parts are arranged side by side so as to be exposed from the housing along a second surface. The ground member is arranged between the first couplers and the second couplers, and is arranged along a coupling direction in which the connector device and the counterpart connector device are coupled to each other.