SYSTEM AND METHOD FOR WIRELESSLY CHARGING A RECHARGEABLE BATTERY

• US 20130088191A1
• Filed: 10/05/2011
• Published: 04/11/2013
• Est. Priority Date: 10/05/2011
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: SUTARWALA, Taha Shabbir Husain, RICH, David Gerard
• Granted Patent: US 9,083,198 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H02J 50/005 Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
• 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 7/0047 with monitoring or indicating devices or circuits
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]

Abstract

A wireless charging system having a battery with at least one cell, a receiving coil wrapped around the at least one cell and a charger having a transmitting field designed to couple with the receiving coil of the battery. A battery is further described having at least one cell and having a receiving coil wrapped around at least one cell.

Claims

1. A system for wirelessly charging a rechargeable battery comprising:

a battery having at least one cell;

an inductive element wrapped around the at least one cell of the battery; and

a charger having a transmitting field designed to couple with the inductive element.

2. The system of claim 1 wherein the at least one cell is a plurality of stacked cells.

3. The system of claim 1 wherein the at least one cell is a plurality of cells in side by side relationship.

4. The system of claim 1 wherein the wireless charging system further comprising:

a temperature sensor configured to generate a temperature signal; and

a processor operatively connected to the temperature sensor, the processor configured to determine if the battery is operating within a desirable temperature, based on the temperature signal.

5. A battery comprising:

at least one cell; and

an inductive element wrapped around the at least one cell.

6. The battery of claim 5 wherein the at least one cell is a plurality of stacked cells.

7. The battery of claim 5 wherein the at least one cell is a plurality of cells in side by side relationship.

8. The battery of claim 5 wherein the inductive element is designed to couple with a charger having a transmitting field.

9. The battery of claim 5 further comprising:

a temperature sensor configured to generate a temperature signal; and

a processor operatively connected to the temperature sensor, the processor configured to determine if the battery is operating within a desirable temperature, based on the temperature signal.