CONTACTLESS ELECTRIC POWER SUPPLY DEVICE

• US 20170093213A1
• Filed: 09/23/2016
• Published: 03/30/2017
• Est. Priority Date: 09/25/2015
• Status: Abandoned Application

• Current Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Original Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Inventors: IWASE, Eiichiro
• Application Number:
  US15/274,013
• Publication Number:
  US 20170093213A1
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 50/10 using inductive coupling
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment

Abstract

A contactless power supply device includes a power supply core, a power receiving core, the power supply core and the power receiving core being disposed to face with each other closely, a first conductor being wound annularly to form the power supply coil, a second conductor being wound annularly to form the power receiving coil, the power supply core including a surface being formed with a first annular groove portion for containing the power supply coil, the power receiving core including a surface being formed with a second annular groove portion for containing the power receiving coil, the power supply core being divided at at least a portion in a circumferential direction, and the power receiving core being divided at at least a portion in the circumferential direction.

Claims

1. A contactless power supply device, comprising:

a power supply core being formed in an annular shape;

a power receiving core being formed in the annular shape;

the power supply core and the power receiving core being disposed to face with each other closely;

the power supply core including a surface being formed with a first annular groove portion for containing the power supply coil;

the power receiving core including a surface being formed with a second annular groove portion for containing the power receiving coil;

the power supply core being divided at at least a portion in a circumferential direction of the power supply core; and

the power receiving core being divided at at least a portion in the circumferential direction of the power receiving core.

2. The contactless power supply device according to claim 1, wherein

the power supply core is formed with plural first annular core members each having a U-shaped cross section that is orthogonal to the circumferential direction of the power supply core;

and

the power receiving core is formed with plural second annular core members each having the U-shaped cross section that is orthogonal to the circumferential direction of the power receiving core.

3. The contactless power supply device according to claim 2, wherein

the first core member is made from an electromagnetic steel plate;

and

the second core member is made from the electromagnetic steel plate.

4. The contactless power supply device according to claim 2, wherein

the power supply core includes the plural first annular core members having different inner diameters from one another;

the power receiving core includes the plural second annular core members having different inner diameters from one another;

the power supply core s formed such that the plural first core members are stacked with one another successively from an opening of the first groove portion; and

the power receiving core is formed such that the plural second core members are stacked with one another successively from an opening of the second groove portion.