A wireless charging coil member and a wireless charging coil assembly. The wireless charging coil member comprises a first coil member, a second coil member, and a side coil member. The first coil member comprises a first coil and a first magnetic core. The first coil is winding around the first magnetic core in a first direction. The second coil member comprises a second coil and a second magnetic core. The second coil is winding around the second magnetic core in the first direction. The first coil member is disposed at one side of the second coil member. The side coil member comprises a side coil and a side magnetic core. The side coil is winding around the side magnetic core in a second direction. The second direction is perpendicular to the first direction. The side coil member is disposed between the first coil member and the second coil member.

The present disclosure concerns a magnetic component (1), especially for a wireless charging transformer, including a magnetic core (2), at least one flat pre-wound major electrical coil (3) disposed on the magnetic core (2) and at least one minor electrical coil (4) wound around the magnetic core (2). The present disclosure also concerns a transformer (100) including the magnetic component (1) as a primary magnetic component (101).

The present disclosure relates to a transformer arrangement (1) for mounting in an electrical power unit of a vehicle. The arrangement (1) comprising a transformer core (2) and a thermal shell (3) in contact with said transformer core (2). The transformer core (2) comprises a plurality of winding portions (4) extending from a common centre portion (c1) of said core (2), along a first axis (x1), a second axis (x2) and a third axis, (x3) each axis (x1, x2, x3) being orthogonal relative to each of the other axis (x1, x2, x3). Furthermore, each winding portion (4) comprises a conductive coil arrangement (5) wound around each winding portion (4).

The magnetic poser unit (100) comprises a magnetic core (10) including a first, a second and a third winding channels (2a, 2b, 2c) respectively arranged around a first, a second and a third crossing axis (A-A, B-B, C-C) orthogonal to each other, each of said winding channels (2a, 2b, 2c) being intended for receiving one coil wound around the magnetic core (10), each coil having at least one turn. The crossing axis (A-A, B-B, C-C) define orthogonal planes providing eight octants, each including a protrusion defining a protruding spacer (20), being spaced to each other by said winding channels (2a, 2b, 2c). The magnetic core (10) is a composed core formed by several different partial magnetic cores assembled together including two side partial magnetic cores (12), each including four protruding spacers (20). The magnetic core (10) further includes a through hole (30) housing a device for heat dissipation (50).

A novel transformer circuit employing multi-axis windings around a large magnetic billet receives and amplifies the energy from a flux of energetic waves emanating from the sun and other celestial bodies and entities throughout the environment. A clean source of solar energy can be harvested with an energy density that is at least 50 times greater than photon-based collectors.

Described herein are improved configurations for a wireless power transfer. The parameters of components of the wireless energy transfer system are adjusted to control the power delivered to the load at the device. The power output of the source amplifier is controlled to maintain a substantially 50% duty cycle at the rectifier of the device.

In one embodiment, a coil structure for wireless power transfer comprises a ferrite core and at least two coils wound around the ferrite core, the at least two coils located symmetrically about a geometric center of the ferrite core, the at least two coils wound in such a way that when a first current flows in a first spatial direction in one of the at least two coils a second current flows in a second spatial direction in the other one of the at least two coils. In one embodiment, the coil structure is implemented in a wireless power receiver to receive power from a wireless power transmitter or to guide alignment of the receiver to the transmitter. In another embodiment, the coil structure is implemented in a wireless power transmitter to produce a magnetic field for wireless power transfer.

Power reception device includes a plurality of secondary coils which interlinks with magnetic flux output by primary coil and at least one power reception side capacitor electrically connected to the plurality of secondary coils, and receives power without contact from power transmission device including primary coil. The plurality of secondary coils are connected in series to each other. Central axes of the plurality of secondary coils are oriented in mutually different directions. The plurality of secondary coils and power reception side capacitors configure one power reception side resonance circuit. According to the present aspect, power reception side resonance circuit can be easily designed, and a decrease of power transmission efficiency can be suppressed.

Described herein are improved configurations for a wireless power transfer. The parameters of components of the wireless energy transfer system are adjusted to control the power delivered to the load at the device. The power output of the source amplifier is controlled to maintain a substantially 50% duty cycle at the rectifier of the device.

A receiver coil assembly for a wirelessly rechargeable battery including first and second transverse coils and a third coil encompassing the first and second coils. The receiver coil may be employed in a power receiver of a wirelessly rechargeable battery. Also disclosed is a wirelessly rechargeable battery having a power receiver demountable from an electrochemical cell.