Disclosed is a socket with a safety protection effect formed by installing a safety element and a protection door module in the socket to provide the safety protection effect. The protection door module has a first protective plate and a second protective plate disposed on two through slots of the safety element respectively. When a user inserts a strip member into any one of the electrically connected jacks formed on the socket panel, the first protective plate and the second protective plate restrict one another to cover the corresponsive through slots, so that the strip member will not touch the conductive chip inside the socket to prevent the risk of electrical shocks.

A battery pack includes a case, a first set of battery cells and a second set of battery cells received in the case, a circuit board, and a main power output interface. The first set of battery cells and the second set of battery cells can be connected in series or in parallel, and output two kinds of working voltage through the main power output interface. The battery pack further includes an extended power output interface and a switch provided between the first set of battery cells and the second set of battery cells. The battery pack can output a third voltage for an external device through the extended power output interface when the first set of battery cells and the second set of battery cells are connected in series through the switch. It's safe and reliable when charging the external device.

An electrical device may be provided with: a housing to which a battery pack is attached detachably by sliding the battery pack in a sliding direction; a battery connection terminal configured to be electrically connected to the battery pack attached to the housing; and a terminal cover configured to move between a protection position for protecting the battery connection terminal and an exposure position for exposing the battery connection terminal. The housing may include a cover rail extending along the sliding direction. The terminal cover may include: a cover body having a shape that at least partially covers the battery connection terminal; and a hook formed integrally with the cover body, and the hook is engaged with the cover rail so as to slide in the sliding direction.

A tamper resistant electrical receptacle comprises a housing including a cover having at least one plug outlet formed therethrough, the plug outlet configured to receive both line and neutral blades of an electrical plug. The electrical receptacle further comprises electrical contacts positioned within the housing below the at least one plug outlet, the electrical contacts being configured to be connect to AC power. A shutter disposed within the housing between the cover and the electrical contacts is slidable between a closed position blocking access to the electrical contacts through the plug outlet and an open position allowing access to the electrical contacts through the plug outlet, the shutter being biased toward the closed position. The shutter is configured to slide from the closed position to the open position only upon simultaneous insertion of both the line and neutral blades of the electrical plug in the plug outlet.

A multi-voltage charging terminal access port includes at least one housing, a first charging terminal within the housing and configured to receive a first charging voltage, a second charging terminal within the housing and configured to receive a second charging voltage that is different from the first charging voltage, a first movable cover plate mounted within the housing, the first movable cover plate including a first access hole and being movable between a first position in which the first access hole is laterally offset from the first charging terminal to obstruct access to the first charging terminal and a second position in which the first access hole is aligned with the first charging terminal to allow access to the first charging terminal.

A plug receiving device includes a main body having an inner space therein and having an open front face and an open top, wherein conductor pins to be inserted into pin holes of an outlet protrude from an outer rear face of the main body, wherein first electrical connectors are disposed on an inner rear face of the main body; a shield coupled to an inner rear face of the main body and having a vertically slidable slider; and a removable insert to be removably inserted into the inner space, wherein the removable insert has second electrical connectors disposed on an outer face thereof, wherein when the removable insert is inserted into the inner space such that the removable insert presses down the slider of the shield, the second electrical connectors are electrically connected to the first electrical connectors and then to the conductor pins, respectively.

Example implementations relate to an insertion key assembly for a pluggable module. The insertion key assembly includes a stopper element having a stopping tab, a biasing element, and a driver element having a driving tab. The biasing element is connected to the stopper element and the driver element. In a relaxed state of the biasing element: i) the stopper element is pushed outwards by the biasing element to protrude the stopping tab into a passageway defined by a plurality of walls of a chassis, to block insertion of the pluggable module inside the passageway, and ii) the driver element is pushed outwards by the biasing element to protrude the driving tab into adjacent passageway. In a biased state of the biasing element, the stopper element is pulled inwards by the biasing element to retract the stopping tab from the passageway to allow insertion of the pluggable module inside the passageway.

An electrical wiring device including a housing including a front cover coupled to at least one body member, the front cover including a plurality of receptacle openings in a major front surface thereof, the plurality of receptacle openings being configured to receive a plurality of plug blades of a corded electrical plug, wherein the plurality of receptacle openings includes at least a ground prong opening and the at least one body member includes at least one set of receptacle contacts including a hot receptacle contact and a neutral receptacle contact; and a shutter assembly positioned within the housing and including a first shutter member coupled to a second shutter member, wherein the first shutter member is configured to move from a first position to a second position when a ground prong is inserted through the ground prong opening.

An electrical connector includes a housing having a hermaphroditic mating interface configured to be mated with a mating electrical connector having an identical mating interface. The housing a contact shroud at the mating end with openings at the front. A contact assembly is received in the contact cavity with mating ends of contacts aligned with corresponding openings and defining a hermaphroditic contact interface. The electrical connector includes a retractable cover located at the contact shroud to close the openings that is movable relative to the housing between a closed position and an open position. A cover actuator is coupled to the housing including a pusher and an actuation element operably coupled to the retractable cover. The pusher is configured to interface with a complimentary actuation element of the mating electrical connector to actuate a retractable cover of the mating electrical connector.

An improved structure of a universal socket with polarity correction comprising: a cover, a wedging body disposed under the cover, and a shell disposed under the wedging body. The cover is formed with first neutral, first live wire, second neutral, and second live wire electrode socket holes. The wedging body is formed with first neutral electrode, first live wire electrode, second neutral electrode, and second live wire electrode holding holes. Neutral and live wire electrode plate accommodating grooves, and an electrode plate assembly are disposed in the shell. The electrode plate assembly comprises a first neutral electrode plate and a second neutral electrode plate electrically connected to each other and disposed in the neutral electrode plate accommodating groove, and further comprises a first live wire electrode plate and a second live wire electrode plate electrically connected to each other and disposed in the live wire electrode plate accommodating groove.