Variable orientation for charging coils

• US 9,300,150 B2
• Filed: 02/21/2013
• Issued: 03/29/2016
• 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
• Primary Examiner(s): DOAN, NGHIA M
• Application Number:
  US13/772,830
• Publication Number:
  US 20140232329A1
• Time in Patent Office: 1,132 Days
• Field of Search: 320/108
• US Class Current: 1/1
• 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:

a display device;

one or more processors operatively coupled to the display device;

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;

wherein a coil portion of the two or more coil portions substantially does not transmit a charging current to the one or more rechargeable batteries.

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 1, wherein the two or more coil portions comprise portions of a single coil.

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

9. A wireless charging coil system, comprising:

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

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

wherein a coil portion of the two or more receiving coils substantially does not transmit a charging current to the rechargeable battery.

10. The wireless charging coil system of claim 9, wherein the angle is about 90 degrees.

11. The wireless charging coil system of claim 9, wherein the two or more receiving coil portions are oriented substantially perpendicular with respect to one another.

12. The wireless charging coil system of claim 9, wherein the two or more receiving coil portions comprise a plurality of receiving coil portions;

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

13. The wireless charging coil system of claim 9, wherein one receiving coil portion of the two or more receiving coil portions transmits a charging current to the rechargeable battery.

14. The wireless charging coil system of claim 13, wherein the charging current is induced into the receiving one coil portion wirelessly via a source coil oriented substantially parallel to the one coil portion.

15. The wireless charging coil system of claim 9, wherein the two or more receiving coil portions comprise portions of a single coil.

16. The wireless charging coil system of claim 9, wherein the two or more receiving coil portions comprise two or more separate coils.