The present disclosure relates to the technical field of data cables, more particularly to a unidirectional free-pulling data cable that includes a first wire, a second wire and a hollow housing in which a wheel core, a follow-up circuit board, a clamping assembly, and a fixed conductive board disposed on one side of the housing corresponding to and electrically connected to the follow-up circuit board are arranged. The wheel core, with an elastic member disposed therein and a wheel cover disposed at the opposite side thereof, rotates relative to the housing. The first and second wires are exposed out of the housing partially. The clamping assembly cooperates with the wheel cover to position the wheel core to limit the rotation thereof, which solves the problem that the input and output ends of the existing telescopic data cable need to be stretched simultaneously when using, and is more convenient to use.

The contactor rotary connector is provided with a first connector having a first terminal supported by a first mold; and a second connector having a second terminal supported by a second mold. The first connector is provided with a first space block. The second connector is provided with a second space block; a fixed component capable of holding the first mold and the second mold in a coupled state by being rotatably housed in the first space block and the second space block; a contactor capable of contacting the first terminal and the second terminal; and a rotating shaft that integrally couples the contactor and the fixed component, is rotatably supported by one of the first mold and the second mold, and is capable of connecting the first terminal and the second terminal by rotating the contactor.

The contactor rotary connector is provided with a first connector having a first terminal supported by a first mold; and a second connector having a second terminal supported by a second mold. The first connector is provided with a first space block. The second connector is provided with a second space block; a fixed component capable of holding the first mold and the second mold in a coupled state by being rotatably housed in the first space block and the second space block; a contactor capable of contacting the first terminal and the second terminal; and a rotating shaft that integrally couples the contactor and the fixed component, is rotatably supported by one of the first mold and the second mold, and is capable of connecting the first terminal and the second terminal by rotating the contactor.

A retractable vacuum hose system may include a hose having a distal end portion and a proximal end portion and a hose engagement terminal for selectively engaging the proximal end portion to secure the proximal end portion and provide power through the hose.

A retractable vacuum hose system may include a hose having a distal end portion and a proximal end portion and a hose engagement terminal for selectively engaging the proximal end portion to secure the proximal end portion and provide power through the hose.

An intelligent power adaptor includes a housing, a circuit board, a holder and a detachable intelligent current adaptor. The housing has an internal space and an insertion through hole. The circuit board is disposed within the internal space. The circuit board includes a plurality of first connecting terminals. The holder is coupled to the circuit board. Also, the holder is disposed above the circuit board and within the internal space. In addition, the holder includes an opening for encompassing the plurality of first connecting terminals. The detachable intelligent current adaptor is detachably coupled to the holder via the opening and externally coupled to the housing via the insertion through hole. The detachable intelligent current adaptor includes a plurality of second connecting terminals that are detachably docked with and electrically coupled to the plurality of first connecting terminals in one-by-one correspondence.

A rotary connector device includes a stator, a rotor and an electrical connector; the rotor including a rotor main body and a connector housing. The connector housing includes a first connector holder and a second connector holder. The second connector holder includes a second holder main body, a first wall, and a second wall. The first wall extends from the second holder main body along an axial direction parallel to the rotation axis. The second wall extends from the second holder main body along the axial direction and is coupled to the first wall.

Provided is disclosure for an example providing protection from electrical discharges for a rolling bearing assembly, where the rolling bearing assembly comprises an inner ring with an inner ring raceway, an outer ring with an outer ring raceway, rolling elements configured to roll or rotate between the inner ring raceway and the outer ring raceway, and at least one electrically conductive part with a first end and a second end, where the first end is configured to electrically contact the inner ring and the second end is configured to electrically contact the outer ring.

An interchangeable plug charger with a coaxial conductive structure includes a charger body and a plug assembly. The charger body has a retaining surface inside, and the retaining surface has a first conductive terminal and a second conductive terminal. The plug assembly is detachably connected to the charger body and includes a plug socket and the coaxial conductive structure. The coaxial conductive structure includes a hollow insulating column, a first conductively connected component sheathed on the hollow insulating column, and a second conductively connected component connected to the interior of the hollow insulating column. The first conductively connected component is electrically connected to the first conductive terminal, and the second conductively connected component is electrically connected to the second conductive terminal. Therefore, the size of the charger can be reduced and the structure of the charger can be simplified to improve the convenience of carrying and use.

A high current and RPM-capable slip ring assembly for use in a selected application for transferring electricity between an exterior environment and an interior environment that includes multiple electrical conduction assemblies with each having a fixed exterior electrical connection disk and rotating interior electrical connection disk mounted around a non-electrically conducting spindle that has a central aperture and a central axle running through the center of the spindle with one end of the central axle connected to the selected application and the other end of the central axle connect to a supporting structure mount and an oiled porous/sintered disk sandwiched around the spindle between the interior and exterior electrical connection disks of each conduction assembly to allow easy rotation between each exterior electrical connection disk and each rotating interior electrical connection disk.