The present disclosure provides an electrical connector, including a housing, a locking mechanism, and an actuating component. The housing has a wire outlet side; a wire connected to an electrical connection point is led out of the housing from the wire outlet side; the locking mechanism may move to a locked position or a released position relative to the housing; at the locked position, the housing is fixed relative to another connector; and at the released position, the housing may be separated from the another connector.

A method and apparatus for securing an electrical connection formed by a mating structure including prongs of a male assembly and receptacles of a female assembly are provided. In certain embodiments, the electrical connection can be secured by frictional engagement between the plug and receptacle housings. This can be accomplished by forcing a wedge into an interface between the housings or expanding a locking element, such as an elastomeric ring, into the interface. Such locking and releasing of the secure connection can be actuated using a locking nut.

A connector assembly includes an electrical plug connectable to an electrical outlet, an inner collar, and an outer collar disposed radially outward from the inner collar. The inner collar includes a plurality of jaws disposed circumferentially about the electrical plug. Each jaw of the plurality of jaws includes threads defined along an outer surface of each jaw. The outer collar includes at least one thread defined along an inner surface of the outer collar. Rotation of the outer collar relative to the inner collar causes the at least one outer collar thread to rotatably engage the inner collar threads and the plurality of jaws to deflect inward such that the plurality of jaws engages and compresses the electrical outlet when the electrical outlet is connected to the electrical plug.

Retention assemblies for retaining a first end of an electrical cord in engagement with an electrical outlet are described that include an adapter with a housing having a cylindrical plug portion and retention members that extend radially outwardly from the cylindrical plug portion of the housing to engage a sidewall of the electrical outlet and cause the adapter to resist removal from the electrical outlet. The retention assemblies further include a retention housing that is configured to couple to the adapter, where the retention housing includes one or more walls that define a back opening, a front opening, and an interior sized to receive the first end of the electrical cord. The front opening includes a portion having a dimension smaller than a dimension of the first end to thereby retain the first end within the retention housing.

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 charger extension device has a housing having a top side, a left side, a bottom side, a right side, a rear side, and a front side, an USB port on the front side of the housing, and a port on the rear side of the housing. Another charger extension device has a housing having a top side, a left side, a bottom side, a right side, a rear side, and a front side, an USB port on the front side of the housing, a port on the rear side of the housing, and a cable retention assembly on the rear side of the housing.

A connector is provided with a flexible wire, a terminal to be connected to the wire, and a housing for accommodating the wire and the terminal. The housing includes a housing body for accommodating the wire and a holder for accommodating and holding the terminal. The holder is configured to be swingable in a plane direction together with the terminal with respect to the housing body by being attached to the housing body with a play between the housing body and the holder. The wire extends to the outside of the housing body in an extending direction intersecting a Z-axis direction and is slidable in the extending direction with respect to the housing body, following a swinging motion of the terminal. A gap for allowing the wire to be bent, following a swinging motion of the terminal, is provided between the housing body and the wire.

A connecting-fixing structure, used for detachably connecting a main body of an electrical appliance with a power cord, includes a connection end, a locking member, and a rotating sleeve. The locking member includes a supporting shaft and a locking portion which rotates by the supporting shaft as a fulcrum. A locking fitting portion is disposed on the tail end of the power cord and adapted to the locking portion. Furthermore, a rotating sleeve is rotatably sleeved on the connection end, an inner wall of the rotating sleeve has a driving part, and the rotating sleeve rotates to drive the driving part to further drive the locking portion to rotate, thereby locking the locking portion or unlocking the locking portion from the locking fitting portion. The power cord can be disassembled and assembled only by rotating the rotating sleeve, and the operation is convenient, and the structure is simple.

An extension cord for polyphase voltage conversion includes a socket body, a conductive cable and a polyphase circuit disposed in the socket body. The socket body has a hollow housing, and a four-phase power connective head is disposed at an end of the housing in order to supply power to the extension cord. A breaker having safety switch function and at least two power sockets providing voltages with different phases are disposed in the housing. An end of the conductive cable is electrically connectable with a four-phase power source. The other end of the conductive cable has a four-phase power plug electrically connectable with the four-phase power connective head of the socket body. The polyphase circuit includes three phase conductors, a neutral conductor and a ground conductor. The conductors are used to electrically connect with the four-phase power connective head, the breaker and the respective at least two power sockets.

A USB cable that includes a cable coupling element selected from a first connector, a printed circuit board, or a device, as well as a multi-port connector that includes a multi-port connector including a housing, at least two ports defined by the housing, at least two female USB connectors disposed within the housing, and at least two retention arms extending from the housing. The USB cable also includes conductors electrically coupling the first connector to the at least two female USB connectors and a jacket extending between the first connector and the multi-port connector, wherein the conductors are at least partially disposed within the jacket. In another USB cable, in addition to or as an alternative to the retention arms, each of the at least two female USB connectors is spaced at least 10 mm from the opening of the port through which the female USB connector is accessible.