Battery assembly for use in an uninterruptible power supply system and method

• US 20060110657A1
• Filed: 11/14/2005
• Published: 05/25/2006
• Est. Priority Date: 11/15/2004
• Status: Abandoned Application

• Current Assignee: Nathan G. Woodard, William Stanton
• Original Assignee: Nathan G. Woodard, William Stanton
• Inventors: Woodard, Nathan G., Stanton, William
• Application Number:
  US11/273,157
• Publication Number:
  US 20060110657A1
• Time in Patent Office: Days
• US Class Current: 429/120
• CPC Class Codes: H01M 10/121 Valve regulated lead acid batteries [VRLA]
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/615 Heating or keeping warm
• CPC Class Codes: H01M 10/627 Stationary installations, e.g. power plant buffering or backup power supplies
• CPC Class Codes: H01M 10/63 Control systems charging or discharging in response to temperature H01M10/44 , H01M10/443; measurement of temperature H01M10/48 , H01M10/486
• CPC Class Codes: H01M 10/653 characterised by electrically insulating or thermally conductive materials
• CPC Class Codes: H01M 10/6551 Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
• CPC Class Codes: H01M 10/6553 Terminals or leads
• CPC Class Codes: H01M 10/6554 Rods or plates
• CPC Class Codes: H01M 10/6571 Resistive heaters arrangements for heating the battery by its resistance to the internal current H01M10/637
• CPC Class Codes: H01M 10/6572 Peltier elements or thermoelectric devices
• CPC Class Codes: H01M 10/658 by thermal insulation or shielding
• CPC Class Codes: H01M 50/202 Casings or frames around the primary casing of a single cell or a single battery
• CPC Class Codes: H01M 50/24 adapted for protecting batteries from their environment, e.g. from corrosion thermal insulation H01M10/658
• CPC Class Codes: H01M 50/296 characterised by terminals of battery packs terminals of batteries H01M50/543
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery includes a housing and at least one exposed terminal. A thermally conductive mechanism is positioned outside the housing but in close proximity to the terminal, defining a thermally conductive path from the terminal to a point further from the terminal. The mechanism can use thermally conductive brackets that may be electrically isolated from the battery terminals. A heat sink may be positioned to receive heat from the bracket. A heat pump can cooperate with the thermally conductive mechanism and the heat sink for aiding in the movement of heat. A heater can be positioned within the housing for heating the inside of the housing. The battery can be encased by an arrangement of vacuum insulated panels in a way which provides for forming an external electrical connection with the battery terminals. A backup battery assembly and associated uninterruptible power system are described for powering a primary load.

Claims

1. A battery assembly, comprising:

(a) a battery including a housing and at least one terminal extending out of said housing; and

(b) a thermally conductive mechanism positioned outside said housing but in sufficiently close proximity to and electrically isolated from said terminal and configured in a way which defines a thermally conductive path outside said housing from a point proximate said terminal to a point further from the terminal.

2. A battery assembly according to claim 1 including a heat sink positioned in sufficiently close proximity to said further point defined by said thermally conductive path so as to receive heat reaching said last-mentioned point as it passes from said terminal along said path.

3. A battery assembly according to claim 2 including a heat pump cooperating with said thermally conductive mechanism and said heat sink for aiding in the movement of heat from said terminal to said heat sink.

4. A battery assembly according to claim 3 including a heater positioned within said housing for heating the inside of the housing.

5. A battery assembly according to claim 1 wherein said thermally conductive mechanism includes at least one thermally conductive bracket extending from said point proximate said terminal to said further point.

6. A battery assembly according to claim 1 wherein said battery includes a second terminal and wherein said thermally conductive mechanism is positioned in sufficiently close proximity to said second terminal and configured in a way which defines a thermally conductive path outside said housing from a point proximate said second terminal to a point further from the second terminal.

7. A battery assembly according to claim 6 wherein said first mentioned and second mentioned further points are the same point and wherein said thermally conductive mechanism includes a single thermally conductive bracket extending from said points proximate said first mentioned and second terminals to said same further point.

8. A battery assembly according to claim 6 wherein said first mentioned and second mentioned further points are different points and wherein said thermally conductive mechanism includes separate first and second thermally conductive brackets respectively extending from said first mentioned and second points proximate said first mentioned and second terminals to said different further point.

9. A battery assembly according to claim 3 wherein said heat pump is a thermoelectric cooler.

10. A battery assembly according to claim 2 wherein said heat sink is mounted with and carried by said housing.

11. A battery assembly according to claim 3 wherein said heat sink and said heat pump are mounted with and carried by said housing.

12. A battery assembly according to claim 1 including an arrangement of vacuum insulated panels encasing said battery housing to provide for forming an external electrical connection with said terminal.

13. A battery assembly, comprising:

(a) a battery including a housing and at least one terminal extending out of said housing; and

(b) a thermally conductive mechanism positioned outside said housing but in sufficiently close proximity to said terminal and configured in a way which defines a thermally conductive path outside said housing from a point proximate said terminal to a point further from the terminal; and

(c) an arrangement cooperating with said thermally conductive mechanism for collecting heat at said further point.

14. A battery assembly according to claim 13 wherein said arrangement includes a heat sink.

15. A battery assembly, comprising:

(a) a battery including a housing and at least one terminal extending out of said housing; and

(b) a thermally conductive mechanism positioned outside said housing but in sufficiently close proximity to said terminal and configured in a way which defines a thermally conductive path outside said housing from a point proximate said terminal to a point further from the terminal; and

(c) an arrangement cooperating with said thermally conductive mechanism for dispersing heat at said further point.

16. A battery assembly according to claim 15 wherein said arrangement includes a fan.

17. A battery assembly, comprising:

(a) a battery including a housing and a pair of terminals extending out of said housing;

(b) an arrangement of vacuum insulated panels defining a thermally isolated interior that receives said battery in a way which provides for forming an external electrical connection with said terminals

(c) at least one thermally conductive bracket mounted with and carried by said battery and positioned in sufficiently close proximity to said terminal and configured in a way which defines a thermally conductive path extending out of said thermally isolated interior from a point proximate said terminal to a point further from the terminal;

(d) a heat sink mounted with and carried by said battery and positioned in sufficiently close proximity to said further point defined by said thermally conductive path so as to receive heat reaching said last-mentioned point as it passes from said terminal along said path;

(e) a thermoelectric cooler mounted with and carried by said battery and cooperating with said thermally conductive mechanism and said heat sink for aiding in the movement of heat from said terminal to said heat sink; and

(f) a heater positioned proximate to said housing for heating the inside of the housing.

18. The assembly of claim 17 wherein said thermally conductive bracket is substantially within said thermally isolated interior.

19. The assembly of claim 17 wherein said pair of terminals and at least a portion of said thermally conductive bracket are within said thermally isolated interior.

20. A battery assembly, comprising:

(a) a battery including a housing and at least one terminal extending out of said housing; and

(b) a thermally conductive mechanism positioned outside said housing but in sufficiently close proximity to said terminal and configured in a way which defines a thermally conductive path outside said housing from a point proximate said terminal to a point further from the terminal; and

(c) a thermoelectric cooling device located proximate to said further point.

21. A battery assembly, comprising:

(a) a battery including a housing and at least one terminal extending out of said housing;

(b) means for thermally insulating said battery while providing access to said terminal for use in forming an electrical connection therewith;

(c) means defining a thermally conductive path outside said panels from a point proximate said terminal to a point further from the terminal;

(d) means for receiving heat reaching said last-mentioned point as it passes from said terminal along said path;

(e) means for aiding in the movement of heat from said terminal to said receiving means; and

(f) means for heating the inside of the housing.

22. A battery assembly, comprising:

(a) a battery including a housing; and

(b) an arrangement of components mounted with and carried by the battery housing including a cooling mechanism and a heating mechanism configured so as to keep the temperature within the battery housing within a desired temperature range.

23. A battery assembly according to claim 22 wherein said cooling mechanism includes a thermally conductive bracket, a heat sink and a heat pump and wherein said heating mechanism includes a heater.

24. In an uninterruptible power system which includes a primary power supply for powering a primary load, a backup battery assembly, comprising:

(a) a backup battery (i) adapted for connection with said primary power supply so that the primary power supply is able to recharge the backup battery and (ii) adapted for connection with said primary load so that the backup battery is able to power the primary load when said primary power supply is unable to do so;

(b) an arrangement connected with and powered by said backup battery for causing heat to move away from said battery to cool down the battery, said arrangement including a sensor for sensing when said battery is being used to power the primary load and circuitry for insuring that the arrangement does not use power from the battery to cause heat to move away from the battery when the battery is being used to power the primary load.

25. A battery assembly according to claim 24 wherein said arrangement includes circuitry for insuring that the arrangement causes heat to move away from said battery at least when said battery is first recharged after being used to power the primary load, whereby to cool down the battery during recharging.

26. An uninterruptible power system for powering a primary load, comprising:

(a) a primary power supply for powering said primary load;

(b) a backup battery (i) connected with said primary power supply so that the primary power supply is able to recharge the backup battery and (ii) connected with said primary load so that the backup battery is able to power the primary load when said primary power supply is unable to do so;

(c) an arrangement connected with and powered by said backup battery for causing heat to move away from said battery whereby to cool down the battery, said arrangement including a sensor for sensing when said battery is being used to power the primary load and circuitry for insuring that the arrangement does not use power from the battery to cause heat to move away from the battery when the battery is being used to power the primary load.

27. An uninterruptible power system according to claim 26 wherein said arrangement includes circuitry for insuring that the arrangement causes heat to move away from said battery at least when said battery is first recharged after being used to power the primary load, whereby to cool down the battery during recharging.

28. A method, comprising:

(a) providing a battery including a housing and at least one terminal extending out of said housing;

(b) thermally insulating said battery while providing for an external electrical connection with said terminal;

(c) defining a thermally conductive path from a point proximate said terminal to a point further from the terminal;

(d) selectively aiding in the movement of heat from said terminal to said further point; and

(e) receiving heat reaching said further point, after passing from said terminal along said path, for dissipation into an ambient environment.

29. The method of claim 28 further comprising:

(f) selectively heating the battery in cooperation with said selectively aiding.