Disclosed is a rotary steering drilling apparatus. The rotary steering drilling apparatus includes a plurality of cylinders that are fixedly connected in series, wherein at least a part of adjacent cylinders are in power connection via a power connection unit; the power connection unit includes a first electrical connecting assembly and a second electrical connecting assembly, the cylinder in power connection is provided with a first electrical connecting assembly at one end and a second electrical connecting assembly at the other end, the adjacent cylinders are in power connection via the first electrical connecting assembly and the second electrical connecting assembly, and the first electrical connecting assembly and the second electrical connecting assembly on the same cylinder are in power connection; the first electrical connecting assembly includes a first electrical connecting ring which is arranged annularly, and the first electrical connecting ring includes a plurality of first conducting regions and first insulating regions which are distributed circumferentially and are spaced apart; and the second electrical connecting assembly includes a second electrical connecting ring which is arranged annularly, and the second electrical connecting ring includes a plurality of second conducting regions and second insulating regions which are spaced apart. The rotary steering drilling apparatus according to the present application can achieve multi-path power connection between adjacent cylinders and has the advantages of being convenient to mount, high in conductivity reliability and the like.

A slipring device includes a first part and a second part rotatable against each other. Both parts include housings with slipring components. A first housing at the first part has a hollow shaft with a bayonet lock notch to engage with a locking ring having at least one bayonet lock protrusion. The locking ring can easily be attached by a bayonet lock to lock the first part and the second part together.

An electrical contact has a contact surface adapted to contact a mating contact. The contact surface has a plurality of rotatable rolling contact bodies made of an electrically conductive material.

Disclosed is a plug connector for contacting electrical lines. The plug connector has a first plug part and a second plug part. The first plug part and the second plug part are each designed for receiving and contacting of an electrical cable. The first plug part has a spherical shell as a contact region and the second plug part has a sphere as a contact region. By this geometric design, the first plug part and the second plug part can be variably aligned and fastened to each other. Particularly advantageously and flexible, the first plug part and the second plug part can be adjusted without the contact and connections having to be dismantled.

An electrically conductive assembly is for a bearing disposed about a shaft and disposed within a housing. The conductive assembly includes an annular retainer coupleable with a bearing outer ring or with the bearing housing and having a centerline and an open inner end defining an annular groove. At least two and preferably several conductors each have a radially outer end disposed within the retainer groove and a radially inner end contactable with the shaft. Each conductor is formed of a plurality of conductive fibers arranged to extend radially inwardly from the retainer inner end. The at least two conductors are spaced apart circumferentially about the centerline so as to define at least two axial passages between the retainer and the shaft. Preferably, the conductors are separated by spacers formed of conductive fibers each having a length shorter than the length of the fibers of the conductors.

An electrical contact component for a contact socket of an implantable medical device includes an electrical contact element for electrically contacting an electrical counter contact (such as an electrode plug), and an electrically conductive outer ring having a plug borehole for receiving the electrical counter contact. The interior of the outer ring includes a depression receiving the electrical contact element. The electrical contact element is formed by contact bodies (such as balls or rolls), a cage element for receiving the contact bodies, and at least one electrically conductive spring element.

Technologies pertaining to a rotary electrical contact device are described herein. A rotary electrical contact device comprises a first sheave that is disposed about a first axis and a second sheave that rotates about the first axis or a second axis that is parallel to the first axis. The device further includes two planetary sheaves that revolve around the first and second sheaves, and a belt that makes contact with each of the sheaves, the belt comprising a co-wound inner helical coil and outer helical coil. As the first sheave rotates, the planetary sheaves revolve about the first and second sheaves and cause the belt to deform and roll along the second sheave. The belt makes rolling contact with the four sheaves. The belt is electrically conductive such that as the belt rolls along the sheaves, the belt maintains electrical contact between the first sheave and the second sheave.

Various embodiments relating to a pogo module comprising a pogo pin for maintaining an electrical connection state when an electronic device is rotated and not rotated are disclosed, and according to one embodiment, the pogo module comprises: first and second housings; module circuit boards provided inside the first and second housings; at least one pogo pin provided to the module circuit board and comprising a rotatable structure electrically connected to at least one electrode pattern included in a printed circuit board of the electronic device; and a support body coupled to the module circuit board to support the at least one pogo pin, wherein the rotatable structure can maintain an electrical connection state with the at least one electrode pattern when the electronic device is rotated or not rotated. In addition, various other embodiments are possible.

A device for achieving a mechanical link and optical and/or electrical and/or fluidic transmission between a first element (E1) and a second element (E2), including: a first connection part designed to be fixed to the first element (E1), a first joining member connected optically and/or electrically and/or in fluidic communication with the first element (E1) and mounted on the first connection part, a second connection part designed to be fixed to the second element (E2), and arranged at least in part between the first connection part and the first joining member and defining a ball joint link between the first and second elements, and a second joining member connected optically and/or electrically and/or in fluidic communication with the second element (E2), arranged in the second connection part, the first and second joining members being configured to allow an optical and/or electrical and/or fluidic transmission from one to the other.

The invention concerns a handle for a video endoscope including a housing and an interface portion rotatably supported relative to the housing where the interface portion includes a first connector element at its distal end section that is connectable to a second connector element of an associated elongate shaft of the video endoscope. Thereby a detachable, rotatable electrical and/or mechanical connection between the handle and the associated shaft is achieved. The coupling includes an electrical connection assembly arranged at an exterior of the interface portion forming an electrical connection to a stationary electric component of the handle. The handle includes a mechanical rotation stop for a rotation of the interface portion relative to the housing such that a rotation range is limited and damage to the electrical connection assembly is prevented.