WIRELESS POWER TRANSMISSION DEVICE AND POWER RECEIVING DEVICE

• US 20120161544A1
• Filed: 03/08/2012
• Published: 06/28/2012
• Est. Priority Date: 12/25/2009
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Kashiwagi, Ippei, Oodachi, Noriaki, Shoki, Hiroki
• Application Number:
  US13/415,366
• Publication Number:
  US 20120161544A1
• Time in Patent Office: Days
• US Class Current: 307/104
• CPC Class Codes: H02J 5/005 with inductive power transfer for charging H02J7/025
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

A wireless power transmission device that supplies power to a power receiving device including a second self-resonant coil having a winding structure in which a conductive wire is wound one turn or more perpendicularly to a second central axis, the wireless power transmission device comprising: a first self-resonant coil having the winding structure in which the conductive wire is wound one turn or more perpendicularly to a first central axis to supply the power to the second self-resonant coil that is not located on the first central axis; and a third self-resonant coil having the winding structure in which the conductive wire is wound one turn or more perpendicularly to a third central axis that is not perpendicular to the first central axis and arranged on the first central axis.

Claims

1. A wireless power transmission device that supplies power to a power receiving device including a second self-resonant coil having a winding structure in which a conductive wire is wound one turn or more perpendicularly to a second central axis, the wireless power transmission device comprising:

a first self-resonant coil having the winding structure in which the conductive wire is wound one turn or more perpendicularly to a first central axis to supply the power to the second self-resonant coil that is not located on the first central axis; and

a third self-resonant coil having the winding structure in which the conductive wire is wound one turn or more perpendicularly to a third central axis that is not perpendicular to the first central axis and arranged on the first central axis.

2. The wireless power transmission device according to claim 1, wherein the third central axis is parallel to or matches the first central axis.

3. A wireless power transmission device that supplies power to a power receiving device including a second self-resonant coil, comprising:

a first self-resonant coil having a winding structure in which a conductive wire is wound one turn or more perpendicularly to a first central axis to supply the power to the second self-resonant coil; and

a third self-resonant coil having the winding structure in which the conductive wire is wound one turn or more perpendicularly to a third central axis and installed in a position other than the first central axis.

4. The wireless power transmission device according to claim 3, wherein

the third central axis is parallel to the first central axis and

the third self-resonant coil is arranged perpendicularly to the first central axis and in a plane containing the first self-resonant coil.

5. The wireless power transmission device according to claim 4, wherein the first self-resonant coil supplies the power to a second self-resonant coil that is not arranged in the plane.

6. A wireless power transmission device that supplies power to a power receiving device including a second self-resonant coil, comprising:

a first self-resonant coil having a winding structure in which a conductive wire is wound one turn or more perpendicularly to a first central axis to supply the power to the second self-resonant coil; and

a plurality of third self-resonant coils having the winding structure in which the conductive wire is wound one turn or more perpendicularly to mutually different third central axes.

7. A wireless power transmission device that supplies power to a power receiving device including a second self-resonant coil having a winding structure in which a conductive wire is wound one turn or more perpendicularly to a second central axis, the wireless power transmission device comprising:

a first self-resonant coil having the winding structure in which the conductive wire is wound one turn or more perpendicularly to a first central axis to supply the power to the second self-resonant coil; and

a third self-resonant coil having the winding structure in which the conductive wire is wound one turn or more perpendicularly to a third central axis to transmit the power supplied from the first self-resonant coil to the second self-resonant coil, wherein

the first and third self-resonant coils transmit the power to the second self-resonant coil arranged in a position that is not perpendicular to the first self-resonant coil or the third self-resonant coil.

8. A power receiving device that receives power from a wireless power transmission device including a first self-resonant coil having a winding structure in which a conductive wire is wound one turn or more perpendicularly to a first central axis, the power receiving device comprising:

a third self-resonant coil having the winding structure in which the conductive wire is wound one turn or more perpendicularly to a third central axis to receive the power from the first self-resonant coil; and

a second self-resonant coil having the winding structure in which the conductive wire is wound one turn or more perpendicularly to a second central axis to receive the power from the first and third self-resonant coils, wherein

the second and third self-resonant coils receive the power from the first self-resonant coil arranged in a position that is not perpendicular to the second self-resonant coil or the third self-resonant coil.