The present invention provides a safety device for socket, which comprises a switching circuit, a control module, and a detection module. The switching circuit is coupled between a supply main and an internal transmission structure of a socket. The control module is coupled to and controls the switching circuit. The detection module is coupled to the control module and outputs a detection signal. The control module controls the turning-on or cutoff of the switching circuit according to the detection signal. When the plug is not inserted into the socket, the control module cuts off the switching circuit. Then the power source from the supply main will not be transmitted to the internal transmission structure of the socket. After the plug is inserted into the socket, the control module turns on the switching circuit. Then the power source from the supply main will be transmitted to the plug via the switching circuit and the internal transmission structure of the socket. Thereby, the sparks can be avoided for preventing danger as well as extending the lifetime of the socket.

An object is to provide a DC power supply connector that can suppress occurrence of an arc discharge at DC power off with a small-scale configuration without reducing power efficiency during DC power supply and can reduce heat generation.

The connector includes, on at least any of a positive-electrode-side electrode side and a negative-electrode-side electrode side, a movable contact piece (20c) that touches a first contact (25) in a state where a terminal (11) on a power receiving side has been inserted and to touch a second contact (24) in a state where the terminal has not been inserted, and a current limiting circuit (30) including a switching element (T1). The current limiting circuit (30) does not flow a current to the switching element (T1) in the case where the movable contact piece (20c) is touching the first contact (25), and flows a current to the terminal (11) through the movable contact piece (20c) until the movable contact piece (20c) is linked to the second contact (24) after separation from the first contact (25), and gradually decreases the flowing current.

A control method of a power supply path includes detecting a plug-in state of a first connector through a configuration channel pin of the first connector; acquiring a plurality of rated voltages of a first power adaptor externally connected to the first connector and a rated current corresponding to each of the rated voltages; detecting a plug-in state of a second connector through a direct-current (DC) input pin of the second connector; acquiring a power quota of a second power adaptor externally connected to the second connector; selecting, from the plurality of rated voltages, the largest one that is not greater than an operating voltage, as a selected rated voltage; calculating a power quota of the selected rated voltage; and controlling a switching circuit to couple a power circuit to a power pin of one of the first and second connectors according to the two power quotas.

An arc prevention system including a jack having a receptacle, with the receptacle having an upper wall, a bottom wall, two opposing side walls and a back wall between the two opposing side walls, a sensor unit positioned on the back wall of the receptacle, where the sensor unit is positioned on the back wall of the receptacle such that the sensor unit engages a plug inserted into the receptacle.

An electrical connection mount extending along an axial direction and comprising a movable element that can move along the axial direction between a contact position and an insulated position, wherein the movable element is configured to come into contact with at least one complementary contact of a complementary electrical connection mount in the contact position while the movable element is configured to be remote from the at least one complementary contact of the complementary electrical connection mount in the insulated position, the electrical connection mount comprising a displacement mechanism configured to move the movable element between the contact position and the insulated position when the electrical connection mount and the complementary electrical connection mount are engaged with each other and rotated relative to each other around the axial direction.

A tamper resistant electrical outlet maintains its electrical contacts in a non-energized state until an object is inserted into an outlet opening for a different electrical contact. In this way, an object contacting the electrical contact behind one contact opening will not be subjected to electrical current unless another object is simultaneously inserted sufficiently far into another outlet opening. Insertion of an object, such as the prong of an electrical plug, into either outlet opening will move an actuator, thereby moving a respective live contact toward the electrical contact that is associated with the other outlet opening. Although the electrical outlet does not preclude objects from being inserted into its outlet openings and engaging the associated electrical contacts, only by simultaneous insertion of two different objects (such as two prongs of an electrical plug) into the different outlet openings will the electrical contacts become energized.

Electrical assembly, comprising: —a base part (20), and —a removable part (10) configured to be fixed in a removable manner on the base part (20), the base part (20) comprising: —a flexible membrane (22) delimiting, at least in part, a leaktight internal volume (24), —at least one movable electrically conducting element (25), carried by the membrane (22), and extending, at least in part, in the internal volume (24), and —at least one internal electrical contact (28) disposed in the internal volume (24) under the movable conducting element (25), the movable conducting element (25) contacting, during a deformation of the membrane related to the assembly of the removable part (10) on the base part (20), the internal electrical contact (28) for the establishment of an electrical connection between them, and being distant from the internal electrical contact in the absence of fixing of the removable part on the base part.

A cable connector includes a slide coupled to a spring to bias the slide from a retracted position to an extended position and at least one latch coupled to the slide. The slide, when in the extended position, is configured to rotate the at least one latch to secure the at least one latch, and when in the retracted position, is configured to rotate the at least one latch in an opposite direction to release the at least one latch. The slide is configured to engage a contact switch when securing the at least one latch.

The present invention provides a receptacle connector including: a grounding portion configured to ground a connection object; and a ground connection terminal that is configured to be switchably held in a first state in which the ground connection terminal is electrically separated from the grounding portion, or in a second state in which the ground connection terminal is electrically brought into conduction with the grounding portion. The ground connection terminal is switched between the first state and the second state in operative association with interlining of the plug connector and the fitting portion. In the first state, the grounding terminal and the grounding portion are electrically separated. In the second state, the grounding terminal and the grounding portion are electrically brought into conduction with each other through the ground connection terminal.

An electrical receptacle is selectively coupled to a power plug, and the power plug includes a plurality of prongs insertable into the electrical receptacle. The electrical receptacle includes a contact configured to be engageable with one of the plurality of prongs, a power relay in electrical communication with the power source and the contact, and a switch electrically coupled to the power relay. The switch is moveable between a first position and a second position. The switch is biased toward the first position. The power relay is configured to disable electrical communication between the power source and the contact when the switch is positioned in the first position. The power relay is also configured to enable electrical communication between the power source and the contact in response to the one of the plurality of prongs slidably engaging the switch to move the switch into the second position.