An electric signal adapting device includes at least one first adapting interface and at least one first adaptor. The at least one first adapting interface comprises a magnetic component and a magnetic sensing component. The first adaptor is placed in correspondence with the first adapting interface. The first adaptor is electrically connected to each of the corresponding at least one first adapting interface for transferring the DC electric signal and connecting the DC electric signal to an external device. The magnetic component is configured to attract the at least one first adaptor. The magnetic sensing component is configured to determine whether the at least one first adaptor is correctly placed. When the magnetic sensing component determines that the at least one first adaptor is correctly placed, the at least one first adapting interface transfers the DC electric signal to the at least one first adaptor.

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.

A multi-function device for an adjustable bed system is disclosed which has a housing having a top section and a side section, the side section having a button having a light and a port, operation of the button for sending a signal, a cord connected to the housing, the cord having a wire connected to the button, and a connector connected to the wire.

The invention relates to a high-voltage device (14) for a high-voltage application. The high-voltage dev ice comprises an electrically insulating housing (15), having a housing cover (16) that covers a housing interior (18), and covering means (10) for at least one electrical terminal (34) or electrical region to be protected from touching, which covering means are arranged in the housing interior (18). The covering means (10) have a protective cover (26). The protective cover covers the electrical terminal (34) or the electrical region, can be locked in a closed position by means of at least one locking element (30) and can be transferred into an open position by means of an opening operation. The at least one locking element (30) for the protective cover (26) within the housing is designed in such a way that the release of the at least one locking element requires a duration, the electrical terminal (34) or the electrical region having transitioned into a touching-safe state after said duration has elapsed following the opening of the housing cover (16) and following the interruption of the high-voltage circuit triggered by the opening of the housing cover.

A position assurance apparatus, which is used for a connector assembly connected to a signal circuit are provided. The connector assembly comprises a first connector and a second connector, which are connected in pairs, wherein the first connector is connected to the signal circuit, and the second connector is inserted in the first connector. The position assurance apparatus comprises a first connecting portion and a second connecting portion, which are electrically connected to each other. The first connecting portion and the second connecting portion are configured to be electrically connected to the signal circuit by means of the first connector, so as to turn on the signal circuit when the first connector and the second connector are inserted in place.

A connector includes a housing provided with an accommodating cavity and a first opening communicating with the accommodating cavity; a circuit board disposed in the accommodating cavity and provided with a first signal connection point; a connection head disposed on the housing and including a second signal connection point for external device connection; and a switch disposed in the first opening, being respectively connected to the first signal connection point and the second signal connection point. The switch is used for controlling the connection or disconnection between the first signal connection point and the second signal connection point. In the above-mentioned manner, the connector and a heavy load may be disconnected by the switch when the connector is pulled out, so that risks of instant ignition and short circuit caused by the connector pulled out may be avoided, and safety accidents may be reduced.

An electrical connector includes: a housing including a mechanical interface, the mechanical interface configured to mechanically connect the electrical connector to a bushing; a current path in the housing, the current path including: an electrical conductor; and a switching apparatus electrically connected to the electrical conductor, the switching apparatus associated with operating states, the operating states including at least a first state that closes the current path and a second state that opens the current path; a switch control apparatus in the housing, the switch control apparatus configured to control the operating state of the switching apparatus; and a power apparatus in the housing, the power apparatus configured to obtain electrical energy from the current path and provide electrical energy to the switch control apparatus.

A firearm includes a lower receiver that houses a power source, and an upper receiver is attached to the lower receiver. The upper receiver has at least one conductive strip that provides an electrical connection for a firearm accessory. A connector having a plug portion terminates electrical wiring connected to the power source in the lower receiver. A power switch assembly has a receptacle portion that receives the plug portion of the connector, and a fastener assembly for mounting the power switch assembly to a slot on the upper receiver. The slot provides a firearm accessory mounting location. The power switch assembly is operable to connect and disconnect a transfer of electrical power from the connector to the at least one conductive strip.

An arc prevention system including a jack having a receptacle, a modular connector sized to be positioned in the receptacle of the jack, the modular connector including a plurality of contacts, with at least two of the contacts creating an energized electrical path with an external power source in electrical communication with the external power source, a latch extending from a top surface of the modular connector, a switching unit positioned on the latch, a plug unit positioned between the latch and the jack that prevents the modular connector from moving out of the receptacle, a control circuit in electrical communication with switch and the at least two energized contacts, where the electrical path between the control circuit and the switching unit is energized when the plug engages the switching unit on the latch, and the control circuit adjusts the energized electrical path to a predetermined electrical level.

A power connection assembly for an appliance includes a receptacle that has an inner wall. The inner wall defines a cavity. A channel is defined by the inner wall and is in communication with the cavity. A power cord is configured to be at least partially received by the cavity of the receptacle. A cap is rotatable between a locked position and an unlocked position and is configured to at least partially encase the power cord. A protrusion extends radially from the cap. A switch is positioned proximate the channel and is operable between an open position and a closed position. The protrusion is received by the channel and is configured to move the switch to the closed position.