Power system for managing power from multiple power sources

• US 7,339,353 B1
• Filed: 03/10/2004
• Issued: 03/04/2008
• Est. Priority Date: 03/10/2004
• Status: Active Grant

• Current Assignee: Quallion, LLC (EnerSys)
• Original Assignee: Quallion, LLC (EnerSys)
• Inventors: Tsukamoto, Hisashi, Masias, Alvaro, Mukainakano, Hiroshi
• Primary Examiner(s): Tso; Edward H
• Application Number:
  US10/798,499
• Time in Patent Office: 1,455 Days
• Field of Search: 320/101, 320/103, 320/107, 320/114, 320/115, 320/116, 320/135, 320/138
• US Class Current: 320/138
• 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 the energy management system and adapted to detachably connect a primary battery to the energy management system;

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

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

a charging source selector for selecting a charging source from among a plurality of charging sources that are each for recharging a secondary battery connected to one of the battery inlets.

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

3. The apparatus of claim 1 wherein the 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 the battery inlets.

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

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

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

7. The apparatus of claim 1 wherein the 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 the 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 the energy management system and adapted to detachably connect a primary battery to the energy management system;

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

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

a first battery detachably connected to the first inlet;

a second battery detachably connected to the second inlet; and

a charging source selector for selecting a charging source from among a plurality of charging sources that are each for recharging the second battery detachably connected to the second inlet.

11. The apparatus of claim 10 wherein the first battery is included in the plurality of charging sources.

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

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

14. The power source system of claim 10 wherein the first battery is not a fuel cell and the second battery is not a fuel cell.

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

16. A power source system comprising:

an energy management system;

a primary battery connected to the energy management system;

a secondary battery connected to the energy management system; and

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

wherein the energy management system comprises;

a power source selector for selecting a power source for providing power for a device connected to one of the outlets;

a charging source selector for selecting a charging source form among a plurality of charging sources that are each for recharging the secondary battery;

a charge controller for controlling the magnitude of a charge current to recharge the secondary battery; and

a measuring device for measuring remaining capacity in at least one of the batteries.

17. The power source system of claim 16 further comprising an indicator connected to the energy management system for conveying the measured remaining capacity.

18. The power source system of claim 16 further comprising a bus connected to the energy management system for relaying the measured remaining capacity to at least one of the batteries.

19. The power source system of claim 16 wherein the primary battery is detachably connected to the energy management system.

20. The power source system of claim 16 wherein the primary battery comprises replaceable cells.

21. The power source system of claim 16 further comprising an external power source inlet.

22. A kit comprising:

power distribution apparatus with;

an energy management system;

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

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

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

a charging source selector for selecting a charging source from among a plurality of charging sources that am each for recharging a secondary battery connected to one of the battery inlets;

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

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

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

23. The kit of claim 22 wherein the first battery is a primary battery and wherein the second battery is a secondary battery.

24. The kit of claim 22 wherein the device comprises an electrically-powered device.

25. The kit of claim 22 wherein the power distribution apparatus further comprises an external power source inlet.