Power system for managing power from multiple power sources

• US 7,528,572 B2
• Filed: 01/03/2008
• Issued: 05/05/2009
• Est. Priority Date: 03/10/2004
• Status: Active Grant

• Current Assignee: Quallion, LLC (EnerSys)
• Original Assignee: Quallion, LLC (EnerSys)
• Inventors: Masias, Alvaro, Mukainakano, Hiroshi, Tsukamoto, Hisashi
• Primary Examiner(s): TSO, EDWARD H
• Application Number:
  US12/006,675
• Publication Number:
  US 20080174278A1
• Time in Patent Office: 488 Days
• Field of Search: 320/101, 320/106, 320/110, 320/112, 320/116
• US Class Current: 320/110
• CPC Class Codes: H02J 1/10 Parallel operation of dc sources
• CPC Class Codes: H02J 2207/40 adapted for charging from various sources, e.g. AC, DC or multivoltage
• CPC Class Codes: H02J 7/007 Regulation of charging or discharging current or voltage

Abstract

A power source system including a power distribution apparatus has an energy management system for managing the provision of power from multiple power sources to multiple electrical devices. The power distribution apparatus may have a combination of primary and secondary sources connected to it. It may also have a variety of electrical devices connected to it, receiving power through the power distribution apparatus.

Claims

1. A power distribution apparatus comprising:

an energy management system;

a first battery inlet connected to said energy management system and adapted to detachably connect a primary battery to said energy management system;

a second battery inlet connected to said energy management system and adapted to detachably connect a secondary battery to said energy management system; and

a plurality of outlets connected to said energy management system, each of said outlets adapted for detachably connecting to a device requiring power.

2. The apparatus of claim 1 wherein said energy management system comprises a power source selector for selecting a power source for providing power for a device connected to one of said outlets.

3. The apparatus of claim 1 wherein said energy management system further comprises a charge controller for controlling the magnitude of a charge current to recharge a secondary battery connected to one of said battery inlets.

4. The apparatus of claim 1 wherein said energy management system further comprises a measuring device for measuring remaining capacity in a battery connected to at least one of said inlets.

5. The apparatus of claim 4 further comprising an indicator connected to said energy management system for conveying the measured remaining capacity.

6. The apparatus of claim 4 further comprising a bus connected to said energy management system for relaying the measured remaining capacity to a battery connected to one of said battery inlets.

7. The apparatus of claim 1 wherein said first battery inlet is adapted to detachably connect a secondary battery when a primary battery is not attached.

8. The apparatus of claim 1 wherein said second battery inlet is adapted to detachably connect a primary battery when a secondary battery is not attached.

9. The apparatus of claim 1 further comprising an external power source inlet.

10. A power source system comprising:

an energy management system;

a first battery inlet connected to said energy management system and adapted to detachably connect a primary battery to said energy management system;

a second battery inlet connected to said energy management system and adapted to detachably connect a secondary battery to said energy management system; and

a plurality of outlets connected to said energy management system, each of said outlets adapted for detachably connecting to a device requiring power;

a first battery detachably connected to said first inlet; and

a second battery detachably connected to said second inlet.

11. The power source system of claim 10 wherein said first battery is a primary battery and wherein said second battery is a secondary battery.

12. The power source system of claim 10 wherein at least one of said first and second batteries is a fuel cell.

13. The power source system of claim 10 wherein said power source system comprises no fuel cells.

14. The power source system of claim 10 further comprising an external power source inlet.

15. A kit comprising:

power distribution apparatus with;

an energy management system;

a first battery inlet connected to said energy management system and adapted to detachably connect a primary battery to said energy management system;

a second battery inlet connected to said energy management system and adapted to detachably connect a secondary battery to said energy management system; and

a plurality of outlets connected to said energy management system, each of said outlets adapted to detachably connect a device requiring power;

a first battery for detachably connecting to said energy management system via said first inlet;

a second battery for detachably connecting to said energy management system via said second inlet; and

a device for detachably connecting to at least one of said outlets.

16. The kit of claim 15 wherein said first battery is a primary battery and wherein said second battery is a secondary battery.

17. The kit of claim 15 wherein said device comprises an electrically-powered device.

18. The kit of claim 15 wherein said power distribution apparatus further comprises an external power source inlet.

19. A method for powering a plurality of devices comprising:

providing a power distribution apparatus having a plurality of inlets and a plurality of outlets;

detachably attaching a first battery to a first inlet of said power distribution apparatus;

detachably attaching a second battery to a second inlet of said power distribution apparatus;

detachably attaching one or more electrical devices to one or more outlets of said power distribution apparatus;

selecting the first battery or the second battery; and

providing power from the selected battery to operate at least one of the electrical devices.

20. The method of claim 19 further comprising charging the second battery.

21. The method of claim 19 wherein charging the second battery includes charging the second battery with current from the first battery.