The wires 20 each include a stranded conductor 21, and an insulation covering 26 that covers the stranded conductor 21. One end portions of the plurality of wires 20 are held by a first holding portion 31 of the first terminal block 30, and the other end portions of the plurality of wires 20 are held by a second holding portion 41 of the second terminal block 40. A connection orientation of the wire harness 10 is an orientation in which the plurality of wires 20 are bent between the first holding portion 31 and the second holding portion 41, and in which a twist occurs in the plurality of wires 20. A stranding direction of the stranded conductors 21 of half or more of the plurality of wires 20 is a direction in which stranding of the stranded conductors 21 is tightened by the twist.

The wires 20 each include a stranded conductor 21, and an insulation covering 26 that covers the stranded conductor 21. One end portions of the plurality of wires 20 are held by a first holding portion 31 of the first terminal block 30, and the other end portions of the plurality of wires 20 are held by a second holding portion 41 of the second terminal block 40. A connection orientation of the wire harness 10 is an orientation in which the plurality of wires 20 are bent between the first holding portion 31 and the second holding portion 41, and in which a twist occurs in the plurality of wires 20. A stranding direction of the stranded conductors 21 of half or more of the plurality of wires 20 is a direction in which stranding of the stranded conductors 21 is tightened by the twist.

In a structure in which a cable is installed into a connector is provided. A back retainer is arranged in a compressed state between an inner circumferential surface of a cylindrical portion, included in a connector body and extending in the axis line direction, and an outer circumferential surface of the cable. The back retainer includes a main annular portion which is configured such that a compression amount on the back retainer in the radial direction centered on the axis line direction gradually increases as the compression amount goes from one side toward the other side. The back retainer includes an engaging protrusion configured to prevent the back retainer from detaching from the cylindrical portion on an outer circumferential surface of the back retainer.

In a structure in which a cable is installed into a connector is provided. A back retainer is arranged in a compressed state between an inner circumferential surface of a cylindrical portion, included in a connector body and extending in the axis line direction, and an outer circumferential surface of the cable. The back retainer includes a main annular portion which is configured such that a compression amount on the back retainer in the radial direction centered on the axis line direction gradually increases as the compression amount goes from one side toward the other side. The back retainer includes an engaging protrusion configured to prevent the back retainer from detaching from the cylindrical portion on an outer circumferential surface of the back retainer.

An electrical conductor assembly includes a line section having a plurality of conductor wires formed of a first electrically conductive material, a contact section in which the conductor wires are compacted to form a contact unit, and a layer formed of a second electrically conductive material. The layer is disposed on a contact surface of the contact unit.

A connector includes a housing to be assembled to a wall portion of a box-shaped body, a bus bar having a fastened portion that is disposed inside the wall portion and is to be connected to a terminal fitting by fastening using a bolt, a nut meshing with the bolt to fasten the fastened portion and the terminal fitting together, and a cover attached to the housing with a gap between the cover and the fastened portion into which the terminal fitting is capable of being inserted and covering the fastened portion the nut.

A connector includes a housing to be assembled to a wall portion of a box-shaped body, a bus bar having a fastened portion disposed inside the wall portion and is to be connected to a terminal fitting by fastening using a bolt, and a nut held by the housing with a gap between the nut and the fastened portion into which the terminal fitting is capable of being inserted and engaged with the bolt to fasten the fastened portion and the terminal fitting inserted into the gap together.

A connector includes a resin housing to be assembled to a wall portion of a box-shaped body, a bus bar held by the housing and having a fastened portion that is disposed inside the wall portion and is to be connected to a terminal fitting by fastening using a bolt, and a nut held by the housing with a gap between the nut and the fastened portion, the gap allowing insertion of the terminal fitting and engaged with the bolt to fasten the fastened portion and the terminal fitting inserted into the gap together. In the bus bar, a recessed portion recessed such that the bus bar is cut off is provided inside the wall portion. The recessed is exposed to an outside of the housing without being covered with a resin constituting the housing.

A terminal connection unit has a novel structure that enables advantageously absorbing tolerance between positions of a terminal fitting and a connection portion while also ensuring a good state of connection between the terminal fitting and the connection portion. A terminal connection unit includes: a current-carrying member that has a connection portion for connection to a terminal fitting provided at the terminal end of an electric wire; and a support portion that fixedly supports the current-carrying member. The current-carrying member includes a fixing portion that is fixed to the support portion, and an extendable portion that couples the connection portion and the fixing portion to each other and can extend and contract in the first direction. The support portion includes an attachment portion that is attached to the connection portion and is displaceable in a first direction.

A connector includes a terminal fitting, a housing that houses the terminal fitting at a housing complete position, and a terminal retaining member that, at an assembling complete position to the housing, retains the terminal fitting remaining at the housing complete position. The terminal fitting includes a penetration hole. The terminal retaining member includes a retaining protrusion that is, at the assembling complete position, inserted into the penetration hole at the housing complete position, and retains the terminal fitting while the terminal fitting remains at that position. The penetration hole is formed to have a left-right asymmetric shape including a first hole part on the left side and a second hole part having a shape different from a shape of the first hole part and arranged on the right side of the first hole part.