THERMAL CONTROL FOR AN ENCASED POWER SUPPLY IN AN LED LIGHTING MODULE

• US 20100264737A1
• Filed: 04/21/2009
• Published: 10/21/2010
• Est. Priority Date: 04/21/2009
• Status: Abandoned Application

• Current Assignee: NCS Power, Inc.
• Original Assignee: Innovative Engineering & Product Development, Inc.
• Inventors: Scalf, Jim, Teeter, Thomas T., Downer, Thomas L., Chandler, Lance, Teeter, Laurence G. JR.
• Application Number:
  US12/427,695
• Publication Number:
  US 20100264737A1
• Time in Patent Office: Days
• US Class Current: 307/66
• CPC Class Codes: F21K 9/23 Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
• CPC Class Codes: F21S 9/02 the power supply being a battery or accumulator
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/18 using temperature feedback
• CPC Class Codes: Y02B 20/00 Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Abstract

Embodiments of the present disclosure provide methods, systems, and apparatuses related to managing a rechargeable battery in an enclosed lighting module. Other embodiments may be described and claimed.

Claims

1. An apparatus comprising:

a bulb-shaped light-passable body to define, at least in part, an enclosure;

a light emitting diode (LED) disposed within the enclosure;

a first power supply interface configured to be coupled to a rechargeable battery in a manner such that the rechargeable battery, when so coupled, is disposed within the enclosure;

a second power supply interface configured to be coupled to an alternating current (AC) power supply;

a temperature sensing device configured to be thermally coupled to the rechargeable battery to provide an output proportional to a temperature of the rechargeable battery; and

a controller disposed within the enclosure and coupled to the LED, the first power supply interface, the second power supply interface, and the temperature sensing device and configured to

recharge the rechargeable battery from the AC power supply through the second power supply interface;

power the LED from the rechargeable battery through the first power supply interface or the AC power supply through the second power supply interface;

wherein the controller is further configured to recharge the rechargeable battery and/or power the LED based at least in part on the output of the temperature sensing device.

2. The apparatus of claim 1, wherein the controller is further configured to

determine the temperature is greater than a predetermined threshold temperature based at least in part on the output, and

recharge the rechargeable battery with an attenuated charging cycle based at least in part on the determination that the temperature is greater than the predetermined threshold temperature.

3. The apparatus of claim 2, wherein the controller is further configured to

power the LED with a full power cycle through the attenuated charging cycle.

4. The apparatus of claim 1, wherein the controller is further configured to

determine the temperature is greater than a predetermined threshold temperature based at least in part on the output, and

power the LED with an attenuated powering cycle based at least in part on the determination that the temperature of the rechargeable battery is greater than the predetermined threshold temperature.

5. The apparatus of claim 1, further comprising

an Edison screw base to provide the second power supply interface.

6. The apparatus of claim 1, further comprising:

another LED; and

the controller is further configured to activate the another LED based at least in part on the output of the temperature sensing device.

7. The apparatus of claim 1, further comprising:

the rechargeable battery permanently coupled to the first power supply interface.

8. The apparatus of claim 1, further comprising:

a heating element; and

the controller is further configured to determine the temperature is below a predetermined threshold temperature based at least in part on the output, and to control the heating element to heat the rechargeable battery based at least in part on said determination that the temperature is below the predetermined threshold temperature.

9. A method comprising:

receiving, by a controller from a temperature sensing device, an output proportional to a temperature of a rechargeable battery disposed within an enclosure defined at least in part by a bulb-shaped light passable body;

recharging, by the controller, the rechargeable battery from an alternating current (AC) power supply; and

powering, by the controller, a light emitting diode (LED) disposed within the enclosure from the rechargeable battery, wherein said recharging and/or powering is based at least in part on said receiving of the output.

10. The method of claim 9, further comprising:

determining the temperature of the rechargeable battery is greater than a predetermined threshold temperature, and

recharging the rechargeable battery with an attenuated charging cycle based at least in part on said determining that the temperature of the rechargeable battery is greater than the predetermined threshold temperature.

11. The method of claim 9, further comprising:

powering the LED with a full powering cycle through the attenuated charging cycle.

12. The method of claim 9, further comprising:

determining the temperature of the rechargeable battery is greater than a predetermined threshold temperature, and

powering the LED with an attenuated powering cycle based at least in part on said determining that the temperature of the rechargeable battery is greater than the predetermined threshold temperature.

13. The method of claim 9, further comprising:

activating another LED based at least in part on the output of the temperature sensing device.

14. The method of claim 9, further comprising:

determining the temperature of the rechargeable battery is below a predetermined threshold temperature; and

heating the rechargeable battery based at least in part on said determining the temperature is below the predetermined threshold temperature.