A connector pair includes a header with a protrusion and an electrical connector assembly movable relative to the header between a mated position and an unmated position. The electrical connector assembly includes a connector housing and a connector position assurance retained on the connector housing for relative linear movement between a lock position and an open position. The connector position assurance includes a first lock surface that engages a second lock surface on the protrusion to retain the electrical connector assembly in the mated position. The connector position assurance includes a first assist surface that engages a second assist surface on the protrusion to move the electrical connector assembly from the mated position toward the unmated position.

A plug connector is attachable with an optical fiber cable and is connectable with a receptacle connector. The receptacle connector comprises a receptacle shell. The plug connector comprises a front holder, a cable holding portion, a rear holder and a coupling member. The front holder is made of metal. The front holder is mated with the receptacle shell when the plug connector is connected with the receptacle connector. The cable holding portion is made of metal. The cable holding portion is configured to hold the optical fiber cable. The rear holder guards the cable holding portion. The rear holder comprises, at least in part, a thermal insulating portion made of non-metal material. The coupling member couples the front holder and the rear holder with each other. Each of the coupling member and the front holder is in contact with the rear holder only on the thermal insulating portion.

A plug connector is attachable with an optical fiber cable and is connectable with a receptacle connector. The receptacle connector comprises a receptacle shell. The plug connector comprises a front holder, a cable holding portion, a rear holder and a coupling member. The front holder is made of metal. The front holder is mated with the receptacle shell when the plug connector is connected with the receptacle connector. The cable holding portion is made of metal. The cable holding portion is configured to hold the optical fiber cable. The rear holder guards the cable holding portion. The rear holder comprises, at least in part, a thermal insulating portion made of non-metal material. The coupling member couples the front holder and the rear holder with each other. Each of the coupling member and the front holder is in contact with the rear holder only on the thermal insulating portion.

An extension cord system includes an electronic device that may store audio data. A case is provided and the electronic device is removably positioned therein. A pair of headphones is provided. The headphones are selectively electrically coupled to the electronic device. An extension cord is selectively electrically coupled between the electronic device and the pair of headphones. The extension cord engages the case when the extension cord is electrically coupled to the electronic device. Thus, the extension cord is inhibited from being unplugged from the electronic device.

A male welding lead connector apparatus including a slidable member to block the male welding lead connector from rotating relative to a female welding lead connector when the two connectors are engaged with one another. A method of locking a male welding lead connector to a female welding lead connector using a special male welding lead connector including a slidable member to block the male welding lead connector from rotating relative to a female welding lead connector when the two connectors are engaged with one another.

A self-locking connector provides an electrical connection between sources, equipment, devices, and the like. The self-locking connector generally includes first and second connector components with first and second housings that include corresponding electrically conductive elements, first and second magnetic elements, and first and second lock elements. One housing includes stationary and movable housing components. The connector components are brought into a coupled state with the corresponding electrically conductive elements providing an electrical connection. As the connector components are brought into the coupled state, the movable housing component automatically moves and brings the locking elements into locked engagement. The magnetic elements urge the connector components in the coupled state and the locking elements in locked engagement. The movable housing component is manually moved to bring the lock components out of locked engagement and the connector components out of the coupled state to break the electrical connection.

A self-locking connector provides an electrical connection between sources, equipment, devices, and the like. The self-locking connector generally includes first and second connector components with first and second housings that include corresponding electrically conductive elements, first and second magnetic elements, and first and second lock elements. One housing includes stationary and movable housing components. The connector components are brought into a coupled state with the corresponding electrically conductive elements providing an electrical connection. As the connector components are brought into the coupled state, the movable housing component automatically moves and brings the locking elements into locked engagement. The magnetic elements urge the connector components in the coupled state and the locking elements in locked engagement. The movable housing component is manually moved to bring the lock components out of locked engagement and the connector components out of the coupled state to break the electrical connection.

This connector unit 1 is provided with a plurality of coupled sub connectors 10, wherein the sub-connectors 10 are each provided with a lower housing 20 and an upper cover 40, and the upper cover 40 is configured to be slidable between a main closed position and a provisional closed position and to be pivotable between the provisional closed position and an open position. One among the lower housing 20 and the upper cover 40 comprises: a pivoting permitted part 51A that permits pivoting when the upper cover 40 is at the provisional closed position; and a pivoting restriction part 51B that restricts pivoting when the upper cover 40 is at the main closed position. One sub connector 10A is provided with a movement restriction part 45 that restricts a slide movement of the upper cover 40 provided to another sub connector 10B from the main closed position to the provisional closed position.

This connector unit 1 is provided with a plurality of coupled sub connectors 10, wherein the sub-connectors 10 are each provided with a lower housing 20 and an upper cover 40, and the upper cover 40 is configured to be slidable between a main closed position and a provisional closed position and to be pivotable between the provisional closed position and an open position. One among the lower housing 20 and the upper cover 40 comprises: a pivoting permitted part 51A that permits pivoting when the upper cover 40 is at the provisional closed position; and a pivoting restriction part 51B that restricts pivoting when the upper cover 40 is at the main closed position. One sub connector 10A is provided with a movement restriction part 45 that restricts a slide movement of the upper cover 40 provided to another sub connector 10B from the main closed position to the provisional closed position.

The invention relates to a plug connection for transmitting electrical energy by releasable contact, said plug connection comprising at least one plug contact pin and at least one contact socket, the at least one contact socket being received in a plug connector housing and the plug connector housing interacting with a slider which is movable relative thereto, so that the plug connection partners are housed in an inserted and secondarily locked contacting position. At least one detent and support geometry is integrated into the plug contact pin and interacts with the plug connector housing, so that the contacting partners are disconnected from one another when the positions thereof relative to one another are outside the secondary locking position.