Power receiving device and power feeding device

• US 10,090,717 B2
• Filed: 10/06/2014
• Issued: 10/02/2018
• Est. Priority Date: 10/04/2013
• Status: Active Grant

• Current Assignee: TDK Corporation
• Original Assignee: TDK Corporation
• Inventors: Kamiura, Naoko, Matsuoka, Kaoru, Urano, Takashi
• Primary Examiner(s): Kessie, Daniel
• Application Number:
  US14/507,307
• Publication Number:
  US 20150097444A1
• Time in Patent Office: 1,457 Days
• Field of Search: 307104
• CPC Class Codes: B60L 53/12 Inductive energy transfer
• CPC Class Codes: H01F 27/2823 Wires H01F27/2866 takes precedence
• 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 50/05 using capacitive coupling
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H04B 5/24 Inductive coupling
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

A power receiving device and power feeding device improve convenience of the user by increasing the freedom of configuring the power receiving device with respect to the power feeding device and freedom of configuring the power feeding device with respect to the power receiving device, and inhibit large size of machines. The power receiving device includes: plurality of surfaces; and inside a power receiving coil, and the power receiving coil includes: a winding portion with wires wound; and an opening portion surrounded by the winding portion and having two opposite opening ends. By disposing the power receiving coil so an end face of at least one of the two opening ends is nonparallel (excluding perpendicular) to two or more surfaces of the power receiving device, a power receiving area capable of receiving power from the power feeding device formed on the two or more surfaces of the power receiving device.

Claims

1. A power receiving device to which power is transmitted wirelessly from a power feeding device comprising a power feeding coil, the power receiving device comprising:

a plurality of outer surfaces;

a power receiving area that is capable of receiving power from the power feeding device and is formed on two or more of the plurality of outer surfaces; and

a power receiving coil inside the plurality of outer surfaces, the power receiving coil comprising;

a winding portion, having;

wound wires;

two bent portions; and

two planar portions that connect the two bent portions; and

a bent opening portion surrounded by the winding portion, the bent opening portion having;

a bent planar shape resulting from a shape of the winding portion; and

two planar portions resulting from the shape of the winding portion, one of the two planar portions being not parallel and not perpendicular to any of the two or more outer surfaces on which the power receiving area is formed.

2. The power receiving device according to claim 1, wherein one of the two bent portions projects toward one of the plurality of outer surfaces, on which the power feeding device is to be disposed.

3. The power receiving device according to claim 1, wherein one of the two bent portions projects toward an opposite side of one of the plurality of outer surfaces, on which the power feeding device is to be disposed.

4. A power feeding device which transmits power wirelessly to a power receiving device comprising a power receiving coil, the power feeding device comprising:

a plurality of outer surfaces;

a power feeding area that is capable of transmitting power to the power receiving device and is formed on two or more of the plurality of outer surfaces; and

a power feeding coil inside the plurality of outer surfaces, the power feeding coil comprising;

a winding portion, having;

wound wires;

two bent portions; and

two planar portions that connect the two bent portions; and

a bent opening portion surrounded by the winding portion, the bent opening portion having;

a bent planar shape resulting from a shape of the winding portion; and

two planar portions resulting from the shape of the winding portion, one of the two planar portions being not parallel and not perpendicular to any of the two or more outer surfaces on which the power feeding area is formed.

5. The power feeding device according to claim 4, wherein one of the two bent portions projects toward one of the plurality of outer surfaces, on which the power receiving device is to be disposed.

6. The power feeding device according to claim 4, wherein one of the two bent portions projects toward an opposite side of one of the plurality of outer surfaces, on which the power receiving device is to be disposed.