Electromagnetic induction coil

US9978494B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9978494-B2
Application numberUS-201514825357-A
CountryUS
Kind codeB2
Filing dateAug 13, 2015
Priority dateFeb 19, 2013
Publication dateMay 22, 2018
Grant dateMay 22, 2018

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A primary electromagnetic induction coil, which supplies power to a primary resonance coil in a pair of a primary and a secondary resonance coils that conduct non-contact power supply by magnetic field resonance, includes a coil main body and a wedge that mounts an end portion of the coil main body to separate the end portion from other portions. Impedance matching can be achieved by adjusting a position of the wedge and a number of turns of the coil main body.

First claim

Opening claim text (preview).

What is claimed is: 1. A coil serving as at least one coil among one pair of resonance coils that conduct non-contact power supply by magnetic field resonance, an electromagnetic induction coil that supplies power to a power supply side of the pair of resonance coils, or an electromagnetic induction coil supplied with power from a power receipt side of the pair of resonance coils, the coil comprising: a coil main body; and an adjustment mechanism adjusting a number of turns of the coil main body, wherein the adjustment mechanism consists of a mounting portion including an inclined plane on which an end portion of the coil main body is mounted and which separates the end portion from other portions, and wherein the mounting portion is mounted on a holding member for holding the coil main body. 2. The coil according to claim 1 , wherein the inclined plane becomes higher as a position approaches the end portion of the coil main body.

Assignees

Inventors

Classifications

  • Coils; Windings; Conductive connections · CPC title

  • H01F27/006Primary

    with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance · CPC title

  • H01F38/14Primary

    Inductive couplings {(for wireless supply or distribution of electric power using inductive coupling H02J50/10)} · CPC title

  • of the resonant type · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9978494B2 cover?
A primary electromagnetic induction coil, which supplies power to a primary resonance coil in a pair of a primary and a secondary resonance coils that conduct non-contact power supply by magnetic field resonance, includes a coil main body and a wedge that mounts an end portion of the coil main body to separate the end portion from other portions. Impedance matching can be achieved by adjusting …
Who is the assignee on this patent?
Yazaki Corp
What technology area does this patent fall under?
Primary CPC classification H01F27/006. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue May 22 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).