The locking members have an upper arm portion, a mountable portion, and a strut portion; the upper arm portion has a. pressure-receiving arm portion and a locking arm portion; the mountable portion has an upper clamping portion and a lower clamping portion that extend in the forward-backward direction, and a coupling portion that couples the upper clamping portion and the lower clamping portion, with the upper clamping portion being resiliently displaceable in the up-down direction, and the mounting portion of the housing being clamped by the upper clamping portion and lower clamping portion in the up-down direction; the strut portion extends upwardly from the upper clamping portion and is coupled to the upper arm portion; the movable member has cam portions located above the pressure-receiving arm portions; and the cam portions depress the pressure-receiving arm portions downward when the movable member moves from the closed position to the open position.

Terminals have a retained portion located forwardly of a receiving space and retained in a housing, and a contact arm portion that extends toward the rear from the retained portion; a contact arm portion has a contact portion that protrudes toward the receiving space in the connector thickness direction perpendicular to the forward-backward direction and the terminal array direction and is capable of contacting the counterpart connect body; a contact portion faces the interior surface of the receiving space across a gap in the connector thickness direction; the terminals have an extension portion located forwardly of the contact portion; the extension portion has a reflective portion in the rear end portion thereof; the reflective portion has a rear end face within a range that includes the protruding end of the contact portion when viewed from the rear; and the rear end face is formed as a reflecting surface.

An extensible and contractible wiring board includes first and second extensible and contractible wiring substrates formed by respective wiring at extensible and contractible substrates. Each of the first and second extensible and contractible wiring substrates has a first end having functional units and an intermediate wiring portion, with the wiring and the functional units of the first and second extensible and contractible wiring substrates not electrically connected. Moreover, the first and second extensible and contractible wiring substrates are electrically independent extensible and contractible wiring substrates, and the wirings and the functional units do not overlap at the first ends of the first and second extensible and contractible wiring substrates in top view of the extensible and contractible wiring board, and the intermediate wiring portions of the first and second extensible and contractible wiring substrates overlap in top view of the extensible and contractible wiring board.

A board end connector and a connector assembly are provided. The board end connector comprises a board end connector body and a board end housing. The board end housing comprises a board end accommodating part and a buckling slot. Wherein the board end accommodating part accommodates the board end connector body. An end surface of the board end accommodating part in the first direction comprises a board end opening. The buckling slot is disposed at one side of the board end accommodating part. A buckling bump is provided in the buckling slot. A sidewall of the buckling bump in a second direction orthogonal to the first direction and away from the board end accommodating part comprises a board end buckling part. The board end buckling part comprises a retaining opening and a buckling elastic piece.

A board end connector and a connector assembly are provided. The board end connector comprises a board end connector body and a board end housing. The board end housing comprises a board end accommodating part and a buckling slot. Wherein the board end accommodating part accommodates the board end connector body. An end surface of the board end accommodating part in the first direction comprises a board end opening. The buckling slot is disposed at one side of the board end accommodating part. A buckling bump is provided in the buckling slot. A sidewall of the buckling bump in a second direction orthogonal to the first direction and away from the board end accommodating part comprises a board end buckling part. The board end buckling part comprises a retaining opening and a buckling elastic piece.

Stacked circuit board structures and methods of assembly are described. In an embodiment, a stacked circuit board structure includes first circuit board and a second circuit board including a plurality of pins mounted thereon, and the plurality of pins are secured in a plurality of receptacles that are coupled with the first circuit board to provide electrical connection between the first circuit board and the second circuit board.

Stacked circuit board structures and methods of assembly are described. In an embodiment, a stacked circuit board structure includes first circuit board and a second circuit board including a plurality of pins mounted thereon, and the plurality of pins are secured in a plurality of receptacles that are coupled with the first circuit board to provide electrical connection between the first circuit board and the second circuit board.

An easy-lock connector with unlock structure includes a rubber core, a housing and plural terminals. The rubber core includes a first body, acting parts and terminal grooves in which the terminals are arranged. Each of the action parts includes a first stop body and a third stop body. An opening is formed between the first stop body and the third stop body. The housing includes a second body and pressing parts. When the action parts are pressed by an external force, the action parts will be deformed. Then, a flexible printed circuit board will be unlocked on the first body, and the action parts are stopped by the first stop body and the third stop body to stop continuing to deform. When the action parts are not pressed by the external force, the circuit board is locked on the first body.

An easy-lock connector with unlock structure includes a rubber core, a housing and plural terminals. The rubber core includes a first body, acting parts and terminal grooves in which the terminals are arranged. Each of the action parts includes a first stop body and a third stop body. An opening is formed between the first stop body and the third stop body. The housing includes a second body and pressing parts. When the action parts are pressed by an external force, the action parts will be deformed. Then, a flexible printed circuit board will be unlocked on the first body, and the action parts are stopped by the first stop body and the third stop body to stop continuing to deform. When the action parts are not pressed by the external force, the circuit board is locked on the first body.

A device that includes a first board, a second board, and coaxial cable coupled to the first board and the second board. The coaxial cable includes a multi-line coaxial cable configured to provide at least two electrical paths for electrical currents between the first board and the second board. A first plug is coupled to the first board. A second plug is coupled to the second board. The coaxial cable includes a first receptable and a second receptable. The first receptable is configured to couple to the first plug. The second receptable is configured to couple to the second plug. The coaxial cable is configured to provide (i) a first electrical path for a first electrical current between the first board and the second board, and (ii) a second electrical path for a second electrical current between the first board and the second board.