Multi-part heat exchanger for LED lamps

Patent metadata

Field	Value
Publication number	US-9435525-B1
Application number	US-201414199398-A
Country	US
Kind code	B1
Filing date	Mar 6, 2014
Priority date	Mar 8, 2013
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

Multi-part heat exchangers for hot/cold temperature domain isolation in LED lamps are disclosed.

First claim

What is claimed is:

1. An LED lamp apparatus, comprising:
a light-emitting diode;
a multi-part heat exchanger comprising a first portion and a second portion wherein the first portion of the multi-part heat exchanger is in direct or indirect physical contact with the light-emitting diode;
at least one electrical component configured to drive the light-emitting diode wherein the second portion of the multi-part heat exchanger is in direct or indirect physical contact with the at least one electrical component; and
wherein the first portion of the multi-part heat exchanger is thermally isolated from the second portion of the multi-part heat exchanger such that the light emitting diode and first portion are configured to operate at a first temperature and the at least one electrical component and said second portion are configured to operate at a second temperature, the second temperature being lower than the first temperature.

2. The apparatus of claim 1 , wherein the first portion of the multi-part heat exchanger is at least partially thermally-isolated from the second portion of the multi-part heat exchanger by a physical distance.

3. The apparatus of claim 2 , wherein thermal isolation is achieved by an air gap between the said first portion and the second portion of the multi-part heat exchanger.

4. The apparatus of claim 2 , wherein thermal isolation is achieved by a solid thermal insulation material between the first portion and the second portion of the multi-part heat exchanger.

5. The apparatus of claim 1 , wherein the at least one electrical component to drive the light-emitting diode includes a capacitor.

6. The apparatus of claim 1 , wherein the at least one electrical component configured to drive the light-emitting diode comprises a resistor.

7. The apparatus of claim 1 , wherein the LED lamp is in the form factor of at least one of, an MR-16 lamp, an A series lamp, a PS series lamp, a B series lamp, a C series lamp, a CA series lamp, an RP series lamp, an S series lamp, an F series lamp, an R series lamp, an MR series lamp, a BR series lamp, a G series lamp, a T series lamp, a BT series lamp, an E series lamp, an ED series lamp, an AR series lamp, and a PAR series lamp.

8. An illumination device, comprising:
a light source having at least one light-emitting diode;
a multi-part heat exchanger comprising a first portion and a second portion wherein the first portion of the multi-part heat exchanger in direct or indirect physical contact with the light-emitting diode;
at least one electrical component configured to drive the light-emitting diode wherein the second portion of the multi-part heat exchanger is in direct or indirect physical contact with the at least one electrical component; and
wherein the first portion of the multi-part heat exchanger is thermally isolated from the second portion of the multi-part heat exchanger such that the light emitting diode and first portion are configured to operate at a first temperature and the at least one electrical component and said second portion are configured to operate at a second temperature, the second temperature being lower than the first temperature.

9. The illumination device of claim 8 , wherein the illumination device is at least one of, an MR-16 lamp, an A series lamp, a PS series lamp, a B series lamp, a C series lamp, a CA series lamp, an RP series lamp, an S series lamp, an F series lamp, an R series lamp, an MR series lamp, a BR series lamp, a G series lamp, a T series lamp, a BT series lamp, an E series lamp, an ED series lamp, an AR series lamp, and a PAR series lamp.

10. The device of claim 8 , wherein the first portion of the multi-part heat exchanger is at least partially thermally-isolated from the second portion of the multi-part heat exchanger by a physical distance.

11. The device of claim 10 , wherein thermal isolation is achieved by an air gap between the said first portion and the second portion of the multi-part heat exchanger.

12. The device of claim 10 , wherein thermal isolation is achieved by a solid thermal insulation material between the first portion and the second portion of the multi-part heat exchanger.

13. The device of claim 8 , wherein the at least one electrical component to drive the light-emitting diode includes a capacitor.

14. The device of claim 8 , wherein the at least one electrical component configured to drive the light-emitting diode comprises a resistor.

15. The device of claim 1 , wherein the first and second portions conform to standard lamp form factor.

16. The device of claim 1 , wherein said first portion comprises a first heat sink and said second portion comprises a second heat sink, wherein that the light emitting diode and first sink are configured to operate at a first temperature and the at least one electrical component and said second sink are configured to operate at a second temperature, the second temperature being lower than the first temperature.

Assignees

• Soraa Inc

Inventors

• He Qinghong
• Krames Michael R

Classifications

• F21V29/008

  Mechanical Engineering · mapped topic

• F21V29/20 Primary

  Mechanical Engineering · mapped topic

• F21K9/00

  Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers · CPC title

• F21K9/233

  specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps · CPC title

• F21K9/238

  Arrangement or mounting of circuit elements integrated in the light source · CPC title