PORTABLE ELECTRONIC DEVICE WITH INTEGRATED FUEL CELL

• US 20080292917A1
• Filed: 05/23/2007
• Published: 11/27/2008
• Est. Priority Date: 05/23/2007
• Status: Abandoned Application

• Current Assignee: STMicroelectronics SA (STMicroelectronics NV)
• Original Assignee: STMicroelectronics SA (STMicroelectronics NV)
• Inventors: BIMBAUD, Igor
• Application Number:
  US11/752,499
• Publication Number:
  US 20080292917A1
• Time in Patent Office: Days
• US Class Current: 429/457
• CPC Class Codes: H01M 2008/1095 Fuel cells with polymeric electrolytes
• CPC Class Codes: H01M 2250/30 Fuel cells in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 8/04007 related to heat exchange
• CPC Class Codes: H01M 8/04216 characterised by the choice for a specific material, e.g. carbon, hydride, absorbent
• CPC Class Codes: H01M 8/1097 Fuel cells applied on a support, e.g. miniature fuel cells deposited on silica supports
• CPC Class Codes: H01M 8/2484 characterised by external manifolds
• CPC Class Codes: Y02B 90/10 Applications of fuel cells in buildings
• CPC Class Codes: Y02E 60/50 Fuel cells

Abstract

A portable electronics device includes a base member containing electronic circuitry for device operation and configured for handheld use. A display is operatively connected to and driven by the electronic circuitry and pivotally connected to the base member. The display includes a backside that is typically not handled by a user when the device is in use. A fuel cell unit is secured to the backside of the display and operatively connected to the electronic circuitry and display for powering the device. The anode of the fuel cell is juxtaposed at the backside of the display and the cathode is oriented outward from the backside facilitating unobstructed air breathing, evacuation of water and heat dissipation.

Claims

1. A portable electronics device, comprising:

a base member containing electronic circuitry for device operation and configured for handheld use;

a display member having a display operatively connected to and driven by said electronic circuitry, wherein said display member is pivotally connected to the base member and movable from a closed position and into an open position at which a user can view the display, and including a back side that is typically not handled by a user when the device is in use; and

a fuel cell unit secured to the back side of said display member and operatively connected to said electronic circuitry and display for powering said display and electronic circuitry, said fuel cell comprising an anode and cathode such that said anode is juxtaposed at the backside of said display member and said cathode is oriented outward from the backside facilitating unobstructed air breathing, evacuation of water and heat dissipation.

2. The portable electronics device according to claim 1, wherein said fuel cell unit comprises a plurality of fuel cell elements, each comprising an anode terminal.

3. The portable electronics device according to claim 2, wherein said fuel cell elements are serially or in parallel or a combination of parallel and serially connected.

4. The portable electronics device according to claim 1, wherein said fuel cell unit comprises an output electrical connection to which said display and electronic circuitry are connected.

5. The portable electronics device according to claim 1, wherein said fuel cell unit comprises at least one silicon substrate on which said cathode and anode are formed.

6. The portable electronics device according to claim 1, which further comprises a cartridge adapter port within said base member and configured for receiving a fuel cartridge as a fuel supply for supplying fuel to the fuel cell unit.

7. The portable electronics device according to claim 1, wherein said base member includes opposing sides and said cartridge adapter port is positioned on a side of said base member to facilitate manual insertion of a fuel cartridge.

8. The portable electronics device according to claim 1, which further comprises a keypad carried by said base member and operative with said electronic circuitry and display for entering characters that can be displayed.

9. The portable electronics device according to claim 8, wherein said keypad is covered and protected by said display member when in the closed position.

10. The portable electronics device according to claim 8, wherein said electronic circuitry, keypad and display are operative as a portable computer.

11. The portable electronics device according to claim 1, wherein said base unit includes a rear edge on which said display pivotally mounts.

12. A portable electronics device, comprising:

a base member containing electronic circuitry for device operation and configured for handheld use;

a display member having a display operatively connected to and driven by said electronic circuitry, wherein said display member is pivotally connected to the base member and movable from a closed position and into an open position at which a user can view the display, and including a back side that is typically not handled by a user when the device is in use;

a planar configured fuel cell unit secured to the back side of said display member and operatively connected to said electronic circuitry and display for powering said display and electronic circuitry, said fuel cell comprising a housing and a planar support and plurality of fuel cell elements supported thereon within the housing, each fuel cell unit having an anode terminal and cathode terminal forming an anode and cathode of the fuel cell such that said anode is juxtaposed at the backside of said display member and said cathode is oriented outward from the backside facilitating unobstructed air breathing, evacuation of water and heat dissipation, wherein said housing has vent openings to facilitate air ingress, water evacuation and heat dissipation; and

a fuel supply carried by said base member and operatively connected to said fuel cell unit for supplying fuel to said fuel cell unit.

13. A portable electronics device according to claim 12, wherein said fuel cell elements are serially or parallel or a combination of parallel and serially connected.

14. A portable electronics device according to claim 12, wherein said fuel cell unit comprises an output electrical connection to which said display and electronic circuitry are connected.

15. A portable electronics device according to claim 12, wherein said fuel cell unit comprises at least one silicon substrate on which said cathode and anode are formed.

16. A portable electronics device according to claim 12, which further comprises a cartridge adapter port within said base member and configured for receiving a fuel cartridge as the fuel supply for supplying fuel to the fuel cell unit.

17. A portable electronics device according to claim 16, wherein said base member includes opposing sides and said cartridge adapter port is positioned on a side of said base member to facilitate manual insertion of a fuel cartridge.

18. A portable electronics device according to claim 12, which further comprises a keypad carried by said base member and operative with said electronic circuitry and display for entering characters that can be displayed.

19. A portable electronics device according to claim 18, wherein said keypad is covered and protected by said display member when in the closed position.

20. A portable electronics device according to claim 19, wherein said electronic circuitry, keypad and display are operative as a portable computer.

21. A portable electronics device according to claim 12, wherein said base unit includes a rear edge on which said display pivotally mounts.

22. A method of operating a portable electronics device, which comprises:

providing a base member containing electronic circuitry for device operation and configured for handheld use;

providing a display member that is pivotally connected to the base member and movable from a closed position and into an open position at which a user can view the display, wherein the base member includes a back side that is typically not handled by a user when the device is in use;

powering the display and electronic circuitry from a fuel cell unit on the back side of the display member, wherein the fuel cell unit comprises an anode and cathode such that said anode is juxtaposed at the backside of the display member and the cathode is oriented outward from the backside facilitating unobstructed air breathing, evacuation of water and heat dissipation; and

supplying fuel to the fuel cell unit from a fuel source that is supported by the base member.

23. The method according to claim 22, which further comprises forming the fuel cell unit as a plurality of fuel cell elements, each comprising an anode terminal and cathode terminal.

24. The method according to claim 23, which further comprises serially connecting each of the fuel cell elements.

25. The method according to claim 22, which further comprises forming the fuel cell unit on a silicon substrate.