CHARGING STATION, CHARGING SYSTEM AND METHOD FOR INDUCTIVE CHARGING

• US 20160181848A1
• Filed: 12/18/2014
• Published: 06/23/2016
• Est. Priority Date: 12/18/2014
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: YING, Zhinong, CALISKAN, Turan, BOLIN, Thomas
• Granted Patent: US 9,825,483 B2
• 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 50/12 of the resonant type
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction

Abstract

The present invention relates to a charging station for inductive charging of an electrical device having a rechargeable battery and a receiving induction coil. The charging station comprises: a housing comprising a plurality of panels forming an interior volume arranged to host the electrical device; a plurality of primary transmitting induction coils; and a controller arranged to excite the plurality of primary transmitting induction coils with charging current; wherein each of the plurality of primary transmitting induction coils is arranged at a separate panel of the housing.

Claims

1. A charging station for inductive charging of an electrical device having a rechargeable battery and a receiving induction coil, the charging station comprising:

a housing comprising a plurality of panels forming an interior volume arranged to host the electrical device;

a plurality of primary transmitting induction coils; and

a controller arranged to excite the plurality of primary transmitting induction coils with charging current;

wherein each of the plurality of primary transmitting induction coils is arranged at a separate panel of the housing.

2. The charging station of claim 1, wherein the controller is arranged to excite the plurality of primary transmitting induction coils sequentially with charging current.

3. The charging station of claim 1, wherein the plurality of panels are orthogonally oriented.

4. The charging station of claim 1, wherein the plurality of primary transmitting induction coils are orthogonally oriented.

5. The charging station of claim 1, wherein the plurality of primary transmitting induction coils are three in number.

6. The charging station of claim 1, further comprising an additional transmitting induction coil, wherein the additional transmitting induction coil is arranged at an opposite side panel of the housing as one of the primary transmitting induction coils.

7. The charging station of claim 1, further comprising a plurality of additional transmitting induction coils, wherein each of the additional transmitting induction coils is arranged at an opposite side panel of the housing as one of the primary transmitting induction coils.

8. The charging station of claim 6 or 7, wherein the controller is arranged to excite a primary transmitting induction coil and a thereto opposite additional transmitting induction coil simultaneously with charging current.

9. The charging station of claim 1, further comprising a wireless communication receiver arranged to receive information from the electrical device the information comprising data pertaining to transmitted charging power, wherein the controller is arranged to limit or boost the charging current based on the information from the electrical device.

10. The charging station of claim 1, further comprising a wireless communication receiver arranged to receive information from the electrical device the information comprising data pertaining to transmitted charging power, wherein the controller is arranged to excite a subset of the plurality of primary transmitting induction coils with the charging current based on the information from the electrical device.

11. The charging station of claim 1, further comprising a wireless communication receiver arranged to receive information from the electrical device the information comprising data pertaining to transmitted charging power, wherein the controller is arranged to excite a single one of the plurality of primary transmitting induction coils with charging current based on the information from the electrical device.

12. The charging station of claim 1, wherein the controller is arranged to detect the primary transmitting induction coil among the plurality of primary transmitting induction coils that best transmit charging power to the receiving induction coil of the electrical device.

13. An inductive charging system, comprising:

an electrical device, comprising;

a rechargeable battery; and

a receiving induction coil; and

a charging station, comprising;

a housing comprising a plurality of panels forming an interior volume arranged to host the electrical device;

a plurality of primary transmitting induction coils; and

a controller arranged to excite the plurality of primary transmitting induction coils with charging current;

wherein each of the plurality of primary transmitting induction coils is arranged at a separate panel of the housing.

14. The inductive charging system of claim 13, wherein the electrical device further comprises a wireless communication sender arranged to send information comprising data pertaining to charging transmission power, and wherein the charging station further comprises a wireless communication receiver arranged to receive the information being sent from the electrical device.

15. A method for charging an electrical device comprising a rechargeable battery and a receiving induction coil, the method comprising:

sequentially subjecting the electrical device for an inductive magnetic field from a plurality of sides of the electrical device.