A power supply adapter includes a base plate, an electrical connector assembly disposed on the base plate, a support frame, a circuit board, and a shell body. The electrical connector assembly includes a hot connector assembly, a neutral connector assembly, and a ground connector assembly. When the adapter is plugged into a two-prong socket, the ground connector assembly is grounded to the two-prong socket. The support frame covers the electrical connector assembly and is affixed to the base plate. The circuit board is disposed on the support frame and electrically coupled to the electrical connector assembly. The shell body covers the support frame and circuit board and is affixed to the base plate. The power supply adapter can used with two-prong sockets that lack a ground slot, and provides grounding test function after being plugged into the two-prong socket, making it safe and convenient to use.

An electrical plug connector has a housing, in which at least one insertion opening and at least one guide for a complementary plug connector with at least one electrical contact pin are arranged. At least one contact element that is elastically deflectable out of the path of the contact pin is mounted in the housing and at least partially protrudes into the insertion opening when the complementary plug connector is absent. The lateral edge of the contact element facing the contact pin, in its front section, encloses an acute angle with the path of the contact pin during the insertion when viewed in the direction of the deflection of the contact element. When the cable plug connector is fully inserted, a flat contact section of the contact element, adjoining the lateral edge, in the transverse direction abuts in contact with the contact pin.

Disclosed is a power supply device including a supply mode determination unit that determines an executable mode among a battery charging mode and a constant power supply mode based on power supplied from a power supply, an output terminal electrically connected to an electronic device, an output type analysis unit that receives a power supply type and a power supply standard of the electronic device from the electronic device, and a transformer unit that transforms the power supplied from the power supply based on the determined power supply type and the determined power supply standard and transmits the transformed power to the electronic device.

An insert for a multi-channel connector comprising a plurality of main contacts for carrying signals, said plurality of main contacts being arranged according to a main arrangement on a first face of said insert. The insert comprises a plurality of secondary contacts for carrying further signals, in particular for carrying data control signals. Said plurality of secondary contacts are arranged according to a secondary arrangement at empty spaces of said first face of said insert. Moreover, said secondary contacts are configured in such a way as to be operational and allow the carrying of said further signals when said insert for said multi-channel connector is coupled to a further reciprocal insert for a reciprocal multi-channel connector at respective first faces, said further reciprocal insert having the same main arrangement of a reciprocal plurality of main contacts and the same secondary arrangement of a reciprocal plurality of secondary contacts.

An insert for a multi-channel connector comprising a plurality of main contacts for carrying signals, said plurality of main contacts being arranged according to a main arrangement on a first face of said insert. The insert comprises a plurality of secondary contacts for carrying further signals, in particular for carrying data control signals. Said plurality of secondary contacts are arranged according to a secondary arrangement at empty spaces of said first face of said insert. Moreover, said secondary contacts are configured in such a way as to be operational and allow the carrying of said further signals when said insert for said multi-channel connector is coupled to a further reciprocal insert for a reciprocal multi-channel connector at respective first faces, said further reciprocal insert having the same main arrangement of a reciprocal plurality of main contacts and the same secondary arrangement of a reciprocal plurality of secondary contacts.

A power adapter and an electronic connector are disclosed, the power adapter includes a base, a plug-in mechanism, a reset mechanism and a limiting mechanism; the plug-in mechanism includes a body plug and a swinging piece; the swinging piece is switchable between a first swinging position and a second swinging position through circular motion; a reset mechanism connected to the swing piece and the base is capable of applying a reset force to the swing piece when it is in the first swing position; the limiting mechanism is capable of limiting movement of the swing piece when it is at the first swing position and releasing limitation of the swing piece when it is at the unlocked position. Volumes of the swing piece and the reset mechanism can be smaller to diminish internal space dimension for the plug-in mechanism rotating, the overall volume is further reduced.

A socket structure includes a base; a slot, disposed on one end of the base and to be connected to one plug having one row of terminals; a tongue disposed on a front end of the base and within the slot so that chambers of the slot on two sides of the tongue may be normally and oppositely inserted and positioned into the slot; one row of first contacts separately arranged on one surface of the tongue, wherein each first contact is electrically connected to a first pin extending out of the base; and one row of second contacts separately arranged on the other surface of the tongue. Each second contact is electrically connected to a second pin extending out of the base. When the plug is inserted into the slot, the row of terminals of the plug are electrically connected to the row of first or second contacts.

A socket structure includes a base; a slot, disposed on one end of the base and to be connected to one plug having one row of terminals; a tongue disposed on a front end of the base and within the slot so that chambers of the slot on two sides of the tongue may be normally and oppositely inserted and positioned into the slot; one row of first contacts separately arranged on one surface of the tongue, wherein each first contact is electrically connected to a first pin extending out of the base; and one row of second contacts separately arranged on the other surface of the tongue. Each second contact is electrically connected to a second pin extending out of the base. When the plug is inserted into the slot, the row of terminals of the plug are electrically connected to the row of first or second contacts.

A power adapter has a solenoid actuated retaining latch controlled by an electronic circuit that detects the presence or absence of AC mains voltage. When the assembled AC-DC adapter and plug assembly are removed from the wall, the latch detects removal and unlocks the plug assembly for easy removal without undue force required by the user. The circuit is designed for minimal power consumption, and the solenoid only consumes power when it is engaging or disengaging the latch.

A power adapter has a solenoid actuated retaining latch controlled by an electronic circuit that detects the presence or absence of AC mains voltage. When the assembled AC-DC adapter and plug assembly are removed from the wall, the latch detects removal and unlocks the plug assembly for easy removal without undue force required by the user. The circuit is designed for minimal power consumption, and the solenoid only consumes power when it is engaging or disengaging the latch.