A protecting cover includes a latching component and a releasing component. The latching component includes an engaging portion. The engaging portion engages with a cooperating portion of a connecting port when the latching component is at least partially accommodated inside the connecting port. The releasing component is detachably installed on the latching component and includes a resilient arm. The resilient arm abuts against the engaging portion to drive the engaging portion to disengage from the cooperating portion by operation of the resilient arm when the releasing component is installed on the latching component. The latching component at least partially accommodated inside the connecting port covers a front opening of the connecting port, and removal of the latching component requires the releasing component. It not only prevents outside dust particles or substances from entering into the connecting port but also prevents an unauthorized connection of the connecting port.

A port protection device includes a blocking element movement subsystem that may be coupled to a port that defines a port entrance, and a port entrance blocking element connected to the blocking element movement subsystem and defining airflow aperture(s). When the blocking element movement subsystem is coupled to the port, the blocking element movement subsystem allows the port entrance blocking element to be positioned in a port protection orientation immediately adjacent the port entrance such that airflow is restricted to entering the port via the airflow aperture(s). When the blocking element movement subsystem is coupled to the port, the blocking element movement subsystem also allows the port entrance blocking element to move from the port protection orientation to a cable connector orientation in response to engagement with a cable connector so that the cable connector may move through the port entrance to connect to the port.

There is disclosed a safety electrical outlet including a female outlet that when in use receives a male part of an electrical plug therein to establish electrical connection therebetween, a protective plate configured to cover the female outlet in a first position, and locking means, coupled to the protective plate, configured to maintain the protective plate in the first position when in a locked state. The locking means includes a retractable element maintaining the protective plate in the first position. Specifically, the retractable element retracts to allow the locking means to release the protective plate when pressed by the male part of the electrical plug. Further, the retractable element is a disc, having holes arranged to communicate with the plurality of holes in the protective plate and in the female outlet.

An insertion detection device for plug pins in a socket and a safety socket. A connecting rod trigger assembly of the insertion detection device forms a linkage structure with a first elastic conductive connector. When the connecting rod trigger assembly moves from the conduction section to the disconnection section, it can ensure that the first elastic conductive connector and the second conductive connector are disconnected. Even if the first elastic conductive connector is deformed due to prolonged insertion of plug, it can be separated from the second conductive connector by moving the connecting rod trigger assembly, and its internal circuit is always in disconnected state. At least three insertion detection devices of the safety socket correspond to two pins of live wire and neutral wire.

A surgical instrument is disclosed. The surgical instrument includes a shaft, a sensing array and a fluid detection circuit. The sensing array is positioned within the shaft. The fluid detection circuit is electrically coupled to the sensing array, and is configured to determine when a fluid originating from an environment external to the shaft is present within the shaft.

A surgical instrument is disclosed. The surgical instrument includes a shaft, a sensing array and a fluid detection circuit. The sensing array is positioned within the shaft. The fluid detection circuit is electrically coupled to the sensing array, and is configured to determine when a fluid originating from an environment external to the shaft is present within the shaft.

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.

A female charging socket for transferring charging current to an electrical vehicle via a male charging plug, wherein the charging socket has a hollow socket body to receive a plug body of the charging plug, wherein electrical contact areas running concentrically are interior to the charging socket and distributed therein in an axial direction; wherein the charging plug is insertable into the hollow socket body, the charging plug being formed of a conical or cylindrical plug body and having exterior thereto multiple electrical contact tracks running concentrically around the plug body distributed axially for making electrical contact with the electrical contact areas of the charging socket, and wherein the charging socket further comprises at least one spanning contact adapted to bring into electrical contact and hold at least one of the electrical contact areas of the charging socket with a corresponding respective electrical contact track of the charging plug.

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 main body, a first cover, and a second cover. The main body includes a first connection portion, a wire inlet portion, and an accommodating space between the first connection portion and the wire inlet portion. The first cover is pivotally connected to the first connection portion to be rotatable relative to the main body between a first position and a second position. When the first cover is at the first position, the accommodating space is opened for installation. When the first cover is at the second position, the first cover at least partially closes the accommodating space for protection. The second cover is connected to the first cover and separably encloses a wire inlet hole with the wire inlet portion. The second cover is movable relative to the wire inlet portion to adjust the size of the wire inlet hole.