Coil arrangements in wireless power transfer systems for low electromagnetic emissions

A wireless, power receiving technology, applied in circuit devices, battery circuit devices, circuits, etc., can solve problems such as trouble and inconvenience

Active Publication Date: 2015-07-08
WITRICITY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cables and similar connectors can sometimes be inconvenient or cumbersome and have other drawbacks

Method used

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  • Coil arrangements in wireless power transfer systems for low electromagnetic emissions
  • Coil arrangements in wireless power transfer systems for low electromagnetic emissions
  • Coil arrangements in wireless power transfer systems for low electromagnetic emissions

Examples

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Embodiment Construction

[0042] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of exemplary embodiments and is not intended to represent the only embodiments in which the invention may be practiced. The term "exemplary" is used throughout this description to mean "serving as an example, instance, or illustration" and should not necessarily be construed as preferred or advantageous over other exemplary embodiments. The detailed description contains specific details in order to provide a thorough understanding of the exemplary embodiments. It will be apparent to one skilled in the art that the exemplary embodiments may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the novelty of the exemplary embodiments presented herein.

[0043] Transferring power wirelessly may refer to transferring any form of energy associated with an e...

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PUM

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Abstract

This disclosure provides systems, methods and apparatus for wireless power transfer. In one aspect the disclosure provides an apparatus for wirelessly communicating power. The apparatus includes a first conductive structure, with a length greater than a width, configured to wirelessly receive power via a magnetic field. The first conductive structure includes two substantially co-planar loops. The first conductive structure has a first edge and a second edge each intersecting a geometric line along the length of the first conductive structure. The apparatus further includes a second conductive structure, with a length greater than width, positioned between the first conductive structure and a magnetic material and configured to wirelessly receive power via the magnetic field. The length of the second conductive structure is substantially equal to at least a distance along the geometric line between the first edge and the second edge of the first conductive structure.

Description

technical field [0001] The present invention relates generally to wireless power transfer, and more particularly, to devices, systems, and methods related to wireless power transfer to remote systems, such as vehicles including batteries. More particularly, the present invention relates to coil arrangements for induction coils in wireless power transfer systems. Background technique [0002] Remote systems, such as vehicles, have been introduced that include operating power derived from electricity received from an energy storage device, such as a battery. For example, a hybrid electric vehicle includes an on-board charger that uses power from vehicle braking and a conventional motor to charge the vehicle. Electric-only vehicles generally receive electricity from other sources for charging the battery. Battery-type electric vehicles (electric vehicles) are often proposed to be charged by some type of wired alternating current (AC), such as a household or commercial AC powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18H01F38/14
CPCH02J7/025Y02T90/16H01F38/14H01F2003/005B60L11/182Y02T90/14Y02T90/122Y02T10/7005Y02T10/7072B60L53/126B60L53/124B60L53/122H02J2310/48H02J50/12H02J7/00034Y02T10/70H02J50/70Y02T90/12
Inventor 汉斯·彼得·威德默尼古拉斯·A·基林
Owner WITRICITY CORP
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