The present invention relates to an electrical transmission device (10), in particular a coil spring arrangement (10), for a motor vehicle and to a motor vehicle, wherein the electrical transmission device (10) has a strip-type electrical transmission element (2), in particular a coil spring (2), which is designed and configured, in a functional installation state of the electrical transmission device (10) in a vehicle, to form an electrical connection, in particular a connection for signal and/or energy transmission, between a component (3A) arranged on the vehicle body side and/or an assembly (3) arranged on the vehicle body side, and a component (4A) arranged on the steering input side, in particular on the steering wheel side, and/or an assembly (4) arranged on the steering input side, wherein the electrical transmission device (10) furthermore has at least one electrical discharge apparatus (5) for discharging an electrostatic charge of the electrical transmission device (10) which is electrically connected to the strip-type electrical transmission element (2) and is designed and configured such that an electrostatic charge of the electrical transmission device (10) can be discharged at least in part via the electrical discharge apparatus (5).

A rotary connector device includes a stator, a rotator, a first connector, and a second connector. The rotator is rotatable about a rotation axis with respect to the stator. The first connector is provided at the rotator. The second connector is provided at the stator. The first connector includes a first lead block which is attached to the rotator and a second lead block which is a member separated from the first lead block and is attached to the rotator. When viewed from an axial direction along the rotation axis, the first lead block is disposed so as to overlap at least partially the second lead block.

A lead block includes a lead block body and a plurality of busbars. The plurality of busbars is each partially embedded in the lead block body. The plurality of busbars includes a plurality of exposed portions. The plurality of exposed portions each extends in a longitudinal direction and disposed spaced apart from one another in an arrangement direction orthogonal to the longitudinal direction. The plurality of exposed portions includes at least one first exposed portion. The at least one first exposed portion includes a first surface and a first additional surface disposed on a reverse side of the first surface in the arrangement direction. The first surface includes a first cut surface having an area smaller than an area of the first surface. The first additional surface includes a first additional cut surface having an area smaller than an area of the first additional surface.

A rotary connector device includes a rotation body and a fixed body that engage with each other in a relatively rotatable manner, in an interior thereof, a housing space having a cylindrical shape, and a flat cable housed in the housing space in a wound manner, wherein the rotation body includes: a rotating-side ring plate having an annular shape and an inner-circumferential cylindrical portion having a cylindrical shape; the fixed body includes: a stationary-side ring plate having an annular shape and an outer-circumferential cylindrical portion; the flat cable has a first end coupled to a stationary-side connector; the fixed body includes an insertion portion from the housing space toward an outer side of the fixed body along a rotation axis direction of the rotation body that relatively rotates; and the stationary-side connector is disposed on a main surface of the stationary-side ring plate on an outer side thereof.

In an example embodiment a power adapter includes a shell, a plug assembly, an electronic assembly and a protective shield, wherein the plug assembly comprises a plug and a connector electrically connected to the plug. The electronic assembly comprises a transformer and an electronic element; and the protective shield is located inside a receiving cavity and encloses a protective cavity together with a cavity wall of the receiving cavity, the connector is located inside the protective cavity, the electronic assembly is located outside the protective cavity, and the protective shield is a protective shield made of an insulating material. The power adapter reduces the influence of strong electrical interference generated by the connector on the electronic assembly, so that the space in the receiving cavity can be fully utilized, thereby realizing the small volume setting of the shell.

A power transfer assembly includes a window balance assembly, a pivot bar, and an electrically conductive pathway. The window balance assembly includes a first portion configured to be fixed in place and a second portion configured to be movable relative to the first portion. The pivot bar is conductively coupled to the second portion of the window balance assembly. And, the electrically conductive pathway extends between the window balance assembly and the pivot bar.

An arrangement for wireless transmission of electrical signals in a motor vehicle maintains a cassette equipped with a stator (3) and a rotor (4) rotatably mounted in the stator (3) is arranged on the steering wheel of the motor vehicle, where the cassette has at least one electrical line extending in windings mounted between stator and rotor. The stator of the cassette is connected to the steering column, while the rotor is connected to the steering wheel. The transmitter (6) is arranged in the immediate vicinity of the stator (3) of the cassette and the receiver (7) is mechanically connected to the rotor (4) of the cassette and electrically to at least one electrical line (9) with a display (8) for displaying received signals.

A magnetic resonance (MR) local coil and a magnetic resonance apparatus are disclosed. The MR local coil includes an antenna unit having at least one antenna for receiving and/or transmitting high frequency (HF) signals; a connection cable for connecting the MR local coil to a magnetic resonance apparatus; and a two-dimensional, (e.g., ribbon-shaped), transmission element for transmitting energy, (e.g., electrical energy), and/or signals, (e.g., electrical and/or optical signals), between the connection cable and the antenna unit. In this case, the transmission element is at least in part arranged about an axis of rotation in a spiral manner.

A cable reel can improve transfer of power and data between a static frame and a cable wound around a rotatable element. The cable reel can use torsional springs to store mechanical energy and also to electrically couple the cable to a node within the static frame. This electrical coupling can be used to pass power. The cable reel can use a data transfer apparatus to transfer data between the frame and the cable. This apparatus may comprise two capacitive plates that together form a capacitor, one connected to the frame and one connected to the rotatable element. Alternatively, this apparatus may comprise an optically isolated zone in which an optical transmitter may communicate data to an optical receiver over free-space optical communications. The data can be transferred without physical contact between the frame and rotatable element, even while the rotatable element may rotate relative to the static frame.

A device (1) for transmitting electrical current and/or signals in a motor vehicle is proposed. The device (1) has a wind up spring cassette (2) composed of a stator (4) and a rotor (5) in which at least one line (7) extending in windings is connected with one end thereof to the stator (4) and with the other end to the rotor (5), and at least one fixing element (3) through which a predetermined relative position for the mounting of the wind up spring cassette (2) into the motor vehicle is fixed. The fixing element is a foil like label (3) which is attached to the outside of the wind up spring cassette (2) and extends from the rotor (5) to the stator (4). The label (3) is inseparably mechanically secured at the stator (4) as well as at the rotor (5).