POWER RECEIVING DEVICE AND POWER FEEDING DEVICE

• US 20150097444A1
• Filed: 10/06/2014
• Published: 04/09/2015
• Est. Priority Date: 10/04/2013
• Status: Active Grant

• Current Assignee: TDK Corporation
• Original Assignee: TDK Corporation
• Inventors: KAMIURA, Naoko, MATSUOKA, Kaoru, URANO, Takashi
• Granted Patent: US 10,090,717 B2
• Time in Patent Office: Days
• US Class Current: 307/104
• 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 surfaces; and

inside a power receiving coil, and

the power receiving coil comprising;

a winding portion with wires wound; and

an opening portion surrounded by the winding portion and having two opposite opening ends, and being disposed so that 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, and

a power receiving area capable of receiving power from the power feeding device being formed on two or more surfaces of the power receiving device.

2. The power receiving device according to claim 1, wherein

the power receiving coil is a planar coil.

3. The power receiving device according to claim 1, wherein

the power receiving coil is curved or bent;

and includes a protruding portion projecting toward the opposite side of one or more surfaces, on which the power feeding device is to be disposed, of the plurality of the surfaces of the power receiving device, or includes a protruding portion projecting toward one or more surfaces, on which the power feeding device is to be disposed, of the plurality of the surfaces of the power receiving device.

4. The power receiving device according to claim 1, wherein

the power receiving coil is curved or bent, and includes a protruding portion projecting toward the opposite side of one or more surfaces, on which the power feeding device is to be disposed, of the plurality of the surfaces of the power receiving device.

5. 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 surfaces; and

inside a power feeding coil,

the power feeding coil comprising;

a winding portion with wires wound; and

an opening portion surrounded by the winding portion and having two opposite opening end, and being disposed so that an end face of at least one of the two opening ends is nonparallel (excluding perpendicular) to two or more surfaces of the power feeding device, and

a power feeding area capable of transmitting power to the power receiving device being formed on two or more surfaces of the power feeding device.

6. The power feeding device according to claim 5, wherein

the power feeding coil is a planar coil.

7. The power feeding device according to claim 5, wherein

the power feeding coil is curved or bent;

and includes a protruding portion projecting toward one or more surfaces, on which the power receiving device is to be disposed, of the plurality of the surfaces of the power feeding device, or includes a protruding portion projecting toward the opposite side of one or more surfaces, on which the power receiving device is to be disposed, of the plurality of the surfaces of the power feeding device.

8. The power feeding device according to claim 5, wherein

the power feeding coil is curved or bent, and includes a protruding portion projecting toward one or more surfaces, on which the power receiving device is to be disposed, of the plurality of the surfaces of the power feeding device.