Gangable inductive battery charger

• US 8,400,104 B2
• Filed: 04/06/2010
• Issued: 03/19/2013
• Est. Priority Date: 04/06/2010
• Status: Expired due to Fees

• Current Assignee: L&P Property Management Company (Leggett & Platt Incorporated)
• Original Assignee: L&P Property Management Company (Leggett & Platt Incorporated)
• Inventors: Adamczyk, Mark, Turner, Jason B.
• Primary Examiner(s): Fantu, Yalkew
• Application Number:
  US12/755,107
• Publication Number:
  US 20110241608A1
• Time in Patent Office: 1,078 Days
• Field of Search: 320/108
• 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 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence

Abstract

Gangable inductive battery chargers with integrated inductive coils are provided. A gangable inductive battery charger has at least one power supply module and at least one inductive charging cup module. The power supply module and the inductive charging cup module are interlockingly connectable through rail and slot mechanical connectors and an electrical connector. The inductive charging cup module has one or more charging cups that are capable of receiving a battery. A primary inductive coil embedded in the inductive charging cup module transfers power from the power supply module to a battery received by one of the one or more charging cups. The battery contains a secondary inductive coil for receiving power from the embedded primary coil. Multiple power supply and inductive charging cup modules may be interlockingly connected as needed.

Claims

1. An inductive battery charger, comprising:

a power supply module having at least one pair of rail and slot mechanical connectors and at least one electrical connector, the set of rail and slot mechanical connectors including;

a rail extending from the power supply module, the rail becoming wider as it extends from the power supply module, and

a slot capable of slidably receiving a rail;

a first inductive charging cup module having one or more charging cups each capable of receiving a battery, the first inductive charging cup module having a first pair of rail and slot mechanical connectors and a first electrical connector interlockingly connectable with the pair of rail and slot mechanical connectors and the electrical connector of the power supply module such that the rail of the power supply module slidably connects with the slot of the first pair and the rail of the first pair slidably connects with the slot of the power supply module, the first pair including;

a rail extending from the first inductive charging cup module, the rail becoming wider as it extends from the first inductive charging cup module, and

a slot capable of slidably receiving a rail; and

one or more inductive coils embedded in the first inductive charging cup module that inductively transfer power to a battery received by one of the one or more charging cups.

2. The inductive battery charger of claim 1, wherein the power supply module receives power from an alternating current power source.

3. The inductive battery charger of claim 1, wherein the charger is capable of charging batteries of different supply voltage, supply current, and composition.

4. The inductive battery charger of claim 1, wherein the first inductive charging cup module includes one or more additional pairs of rail and slot mechanical connectors and one or more additional electrical connectors.

5. The inductive battery charger of claim 4, further comprising one or more additional inductive charging cup modules each having at least one pair of rail and slot mechanical connectors and one electrical connector, each additional inductive charging cup module being interlockingly connectable with the one or more additional pairs of rail and slot mechanical connectors and the electrical connector of the first inductive charging cup module.

6. The inductive battery charger of claim 1, wherein the power supply module is substantially the same size as the first inductive charging cup module.

7. The inductive battery charger of claim 6, wherein the first inductive charging cup module measures approximately six inches by five inches by two inches.

8. The inductive battery charger of claim 1, further comprising:

an inductive coil embedded in the power supply module that inductively receives power transferred from an external inductive coil.

9. The inductive battery charger of claim 8, wherein the power supply module supplies approximately 600 watts of power.

10. The inductive battery charger of claim 1, wherein the first inductive charging cup module has two charging cups.

11. The inductive battery charger of claim 10, wherein each of the two charging cups of the first inductive charging cup module has a substantially rectangular base.

12. The inductive battery charger of claim 10, wherein an inductive coil is embedded beneath each of the two charging cups of the first inductive charging cup module.

13. An inductive charging cup module, comprising:

one or more charging cups each capable of receiving a battery;

one or more inductive coils embedded in the inductive charging cup module that inductively transfer power to a battery received by one or the one or more charging cups;

a set of rail and slot mechanical connectors, including;

a rail extending from the inductive charging cup module, the rail becoming wider as it extends from the inductive charging cup module, and

a slot capable of slidably receiving a rail; and

an electrical connector capable of receiving or transferring electrical current.

14. The inductive charging cup module of claim 13, wherein one inductive coil is embedded beneath each charging cup.

15. The inductive charging cup module of claim 13, further comprising three additional rail and slot mechanical connectors and three additional electrical connectors.

16. The inductive charging cup module of claim 15, wherein each set of rail and slot mechanical connectors is on a different side of the charging cup module.

17. The inductive charging cup module of claim 13, wherein the inductive charging cup module has two charging cups.

18. The inductive battery charger of claim 17, wherein each of the two charging cups of the inductive charging cup module has a substantially rectangular base.

19. An inductive battery charger, comprising:

a power supply module having four pairs of rail and slot mechanical connectors and four corresponding electrical connectors, each set of rail and slot mechanical connectors including;

a rail extending from the power supply module, the rail becoming wider as it extends from the power supply module, and

a slot capable of slidably receiving a rail;

one or more inductive charging cup modules, each inductive charging cup module having two charging cups each capable of receiving a battery, four pairs of rail and slot mechanical connectors, and four corresponding electrical connectors, and each inductive charging cup module being interlockingly connectable with the power supply module via one of the four pairs of rail and slot mechanical connectors and the corresponding electrical connector of the power supply module and being interlockingly connectable with every other inductive charging cup module, the four pairs of mechanical connectors on each of the one or more inductive charging cup modules each including;

a rail extending from the inductive charging cup module, the rail becoming wider as it extends from the inductive charging cup module, and

a slot capable of slidably receiving a rail; and

an inductive coil embedded beneath each charging cup in each of the one or more inductive charging cup modules, each inductive coil capable of transferring power to a battery received by the corresponding charging cup.

20. The inductive battery charger of claim 19,

wherein the power supply module and each inductive charging cup module are substantially the same size, and

wherein from an elevated plan view, the power supply module and each inductive charging cup module are substantially rectangular with one set of rail and slot mechanical connectors visible on each of the four sides of each substantially rectangular module.