ELECTROMAGNETIC INDUCTION COIL

• US 20180240585A1
• Filed: 04/18/2018
• Published: 08/23/2018
• Est. Priority Date: 02/19/2013
• Status: Abandoned Application

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Ngahu, Antony
• Application Number:
  US15/956,237
• Publication Number:
  US 20180240585A1
• Time in Patent Office: Days
• CPC Class Codes: H01F 27/006 with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance
• CPC Class Codes: H01F 27/28 Coils; Windings; Conductive connections
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/12 of the resonant type

Abstract

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.

Claims

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 configured to adjust a number of turns of the coil main body,

wherein the adjustment mechanism consists of a turn back portion provided by winding back a portion of the coil main body.

2. The coil according to claim 1, wherein the turn back portion is provided on the end portion of the coil main body.