VARIABLE ORIENTATION FOR CHARGING COILS

• US 20140232329A1
• Filed: 02/21/2013
• Published: 08/21/2014
• Est. Priority Date: 02/21/2013
• Status: Active Grant

• Current Assignee: Lenovo PC International Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Inventors: Li, Jian, Kelso, Scott Edwards
• Granted Patent: US 9,300,150 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H02J 50/10 using inductive coupling
• 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 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction

Abstract

An aspect provides an information handling device, including: one or more processors; a memory device assessable to the one or more processors and storing code executable by the one or more processors; one or more rechargeable batteries providing power to one or more of the one or more processors and the memory device; and a wireless charging coil system operatively coupled to the one or more rechargeable batteries; the wireless charging coil system comprising two or more coil portions oriented at an angle with respect to one another such that the two or more coil portions are aligned along two or more charging planes. Other aspects are described and claimed.

Claims

1. An information handling device, comprising:

one or more processors;

a memory device assessable to the one or more processors and storing code executable by the one or more processors;

one or more rechargeable batteries providing power to one or more of the one or more processors and the memory device; and

a wireless charging coil system operatively coupled to the one or more rechargeable batteries;

the wireless charging coil system comprising two or more coil portions oriented at an angle with respect to one another such that the two or more coil portions are aligned along two or more charging planes.

2. The information handling device of claim 1, wherein the angle is about 90 degrees.

3. The information handling device of claim 1, wherein the two or more coil portions are oriented substantially perpendicular with respect to one another.

4. The information handling device of claim 1, wherein the two or more coil portions comprise a plurality of coil portions;

each coil portion in the plurality of coil portions oriented at a different angle.

5. The information handling device of claim 1, wherein one coil portion of the two or more coil portions transmits a charging current to the one or more rechargeable batteries.

6. The information handling device of claim 5, wherein the charging current is induced into the one coil portion wirelessly via a source coil oriented substantially parallel to the one coil portion.

7. The information handling device of claim 6, wherein at least one other coil portion of the two or more coils does not transmit a charging current to the one or more rechargeable batteries.

8. The information handling device of claim 1, wherein the two or more coil portions comprise portions of a single coil.

9. The information handling device of claim 1, wherein the two or more coil portions comprise two or more separate coils.

10. A wireless charging coil system, comprising:

two or more coil portions oriented at an angle with respect to one another such that the two or more coil portions are aligned along two or more charging planes;

circuitry to operatively couple the two or more coil portions to an information handling device rechargeable battery.

11. The wireless charging coil system of claim 10, wherein the angle is about 90 degrees.

12. The wireless charging coil system of claim 10, wherein the two or more coil portions are oriented substantially perpendicular with respect to one another.

13. The wireless charging coil system of claim 10, wherein the two or more coil portions comprise a plurality of coil portions;

each coil portion in the plurality of coil portions oriented at a different angle.

14. The wireless charging coil system of claim 10, wherein one coil portion of the two or more coil portions transmits a charging current to the rechargeable battery.

15. The wireless charging coil system of claim 14, wherein the charging current is induced into the one coil portion wirelessly via a source coil oriented substantially parallel to the one coil portion.

16. The wireless charging coil system of claim 15, wherein at least one other coil portion of the two or more coils does not transmit a charging current to the rechargeable battery.

17. The wireless charging coil system of claim 10, wherein the two or more coil portions comprise portions of a single coil.

18. The wireless charging coil system of claim 10, wherein the two or more coil portions comprise two or more separate coils.

19. A wireless charging coil system, comprising:

two or more coil portions oriented at an angle with respect to one another such that the two or more coil portions are aligned along two or more charging planes;

circuitry providing the two or more coil portions charge to create a magnetic flux in the two or more coil portions.

20. The wireless charging coil system of claim 19, wherein the two or more coil portions create magnetic flux in two or more charging planes.

21. A method, comprising:

placing an information handling device in proximity to a wireless charger; and

charging one or more rechargeable batteries using a wireless charging coil system operatively coupled to one or more rechargeable batteries;

the wireless charging coil system comprising two or more coil portions oriented at an angle with respect to one another such that the two or more coil portions are aligned along two or more charging planes.