LIGHT SOURCE DEVICE

• US 20120032588A1
• Filed: 11/11/2010
• Published: 02/09/2012
• Est. Priority Date: 08/06/2010
• Status: Active Grant

• Current Assignee: Cheer Shine Lighting Enterprises, Ltd., Industrial Technology Research Institute
• Original Assignee: Cheer Shine Lighting Enterprises, Ltd., Industrial Technology Research Institute
• Inventors: Lin, Ming-Te, Lin, Ming-Yao, Tai, Kuang-Yu, Yang, Po-Cheng
• Granted Patent: US 8,591,067 B2
• Time in Patent Office: Days
• US Class Current: 315/32
• 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: F21V 29/506 of globes, bowls or cover glasses
• CPC Class Codes: F21V 29/673 the fans being used for intake
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21W 2121/00 Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A light source device having a good heat dissipation capability is disclosed, in which heat generated by a light emitting device is conducted to a base fabricated by a porous material through a heat conducting mask or a heat conducting pipe. Due to a large area contact between the heat conducting mask or the heat conducting pipe and the base, the heat can be evenly conducted to the base, so that the base can absorb the heat and dissipate the heat to external, so as to improve a heat dissipation efficiency. Moreover, in the light source device of the disclosure, heat exchange of the light emitting device can be directly carried on through air convection, so that the heat generated by the light emitting device can be taken away from the light source device through heat exchange of cool air.

Claims

1. A light source device, comprising:

a base;

a heat conducting mask, covering a top of the base, and contacting a portion of surface of the top of the base; and

a light emitting device, connected to the heat conducting mask.

2. The light source device as claimed in claim 1, wherein the top of the base has a column, and the column is sleeved by the heat conducting mask.

3. The light source device as claimed in claim 2, wherein the base has a first pore, an air channel is formed between the heat conducting mask and the column, and the air channel is connected to the first pore.

4. The light source device as claimed in claim 1, wherein the top of the base is a concave cup structure, the light emitting device is located in the concave cup structure, a top of the concave cup structure has a concave surface, and the heat conducting mask covers the concave surface.

5. The light source device as claimed in claim 1, further comprising a power connection base, wherein the power connection base is connected to a bottom of the base and is electrically connected to the light emitting device.

6. The light source device as claimed in claim 5, further comprising a control module disposed in the base and electrically connected between the light emitting device and the power connection base.

7. The light source device as claimed in claim 1, further comprising a lamp mask connected to the base, wherein the lamp mask and the base commonly form a containing space, and the heat conducting mask and the light emitting device are located in the containing space.

8. The light source device as claimed in claim 7, wherein the base has a second pore, and the second pore is connected to the containing space.

9. The light source device as claimed in claim 1, wherein a material of the base comprises a porous porcelain material or a porous metal material.

10. The light source device as claimed in claim 1, further comprising a heat conducting slug disposed between the light emitting device and the heat conducting mask.

11. A light source device, comprising:

a base, having a hollow column on top of the base;

a heat conducting pipe, inserted in the hollow column, and a portion of surface of the heat conducting pipe contacting the hollow column; and

a light emitting device, connected to a top of the heat conducting pipe.

12. The light source device as claimed in claim 11, wherein the base has a pore, an air channel is formed between the heat conducting pipe and the hollow column, and the air channel is connected to the pore.

13. The light source device as claimed in claim 11, further comprising a power connection base, wherein the power connection base is connected to a bottom of the base and is electrically connected to the light emitting device.

14. The light source device as claimed in claim 13, further comprising a control module disposed in the base and electrically connected between the light emitting device and the power connection base.

15. The light source device as claimed in claim 11, further comprising a lamp mask connected to the base, wherein the lamp mask and the base commonly form a containing space, and the heat conducting pipe and the light emitting device are located in the containing space.

16. The light source device as claimed in claim 11, wherein a material of the base comprises a porous porcelain material or a porous metal material.

17. The light source device as claimed in claim 11, further comprising a heat conducting slug disposed between the light emitting device and the heat conducting pipe.

18. A light source device, comprising:

a first diversion pipe, having a first end and a second end opposite to the first end, and having a first air channel;

a second diversion pipe, having a first end and a second end opposite to the first end, wherein the first diversion pipe is sleeved by the second diversion pipe, the first end of the first diversion pipe is adjacent to the first end of the second diversion pipe, and a second air channel is formed between the first diversion pipe and the second diversion pipe;

a light emitting device, connected to the first end of the second diversion pipe, wherein the first air channel and the second air channel are connected at a place where the light emitting device is located; and

a fan, disposed at the second end of the first diversion pipe.

19. The light source device as claimed in claim 18, further comprising a heat conducting slug disposed between the light emitting device and the first end of the second diversion pipe.

20. The light source device as claimed in claim 18, further comprising a base connected to the second end of the first diversion pipe and the second end of the second diversion pipe, wherein the fan is located between the first diversion pipe and the base.

21. The light source device as claimed in claim 20, further comprising a power connection base, wherein the power connection base is connected to a bottom of the base and is electrically connected to the light emitting device and the fan.

22. The light source device as claimed in claim 21, wherein a bottom surface of the power connection base has a first pore, and the first pore is connected to the first air channel, the base has a second pore, and the second pore is connected to the second air channel.

23. The light source device as claimed in claim 20, wherein the base has a first pore and a second pore, the first pore is connected to the first air channel, and the second pore is connected to the second air channel.

24. The light source device as claimed in claim 20, further comprising a lamp mask connected to the base, wherein the lamp mask and the base commonly form a containing space, and the first diversion pipe, the second diversion pipe, the light emitting device and the fan are located in the containing space.

25. The light source device as claimed in claim 18, wherein the second air channel is a helical channel winded along the first diversion pipe.

26. The light source device as claimed in claim 25, wherein a pipe surface of the second diversion pipe has a spiral shape.

27. The light source device as claimed in claim 18, further comprising a turbulence structure located in the second air channel.

28. The light source device as claimed in claim 27, wherein the turbulence structure comprises a helical structure formed on the first diversion pipe or the second diversion pipe.

29. The light source device as claimed in claim 27, wherein the turbulence structure comprises a helical spring disposed between the first diversion pipe and the second diversion pipe.

30. The light source device as claimed in claim 18, wherein a material of the first diversion pipe comprises a porous material.

31. The light source device as claimed in claim 30, wherein the porous material comprises a porcelain material or a porous metal material.

32. The light source device as claimed in claim 18, wherein a material of the second diversion pipe comprises a metal material.

33. A light source device, comprising:

a diversion pipe, having a first end and a second end opposite to the first end, and having a first air channel;

a base, connected to the second end of the diversion pipe;

a light emitting device, connected to the first end of the diversion pipe; and

a lamp mask, connected to the base, wherein the lamp mask and the base commonly form a containing space, the diversion pipe and the light emitting device are located in the containing space, the lamp mask has a second air channel connected to external, and the first air channel and the second air channel are connected at a place where the light emitting device is located.

34. The light source device as claimed in claim 33, further comprising a heat conducting slug disposed between the light emitting device and the first end of the diversion pipe.

35. The light source device as claimed in claim 33, further comprising a fan disposed at the second end of the diversion pipe and between the diversion pipe and the base.

36. The light source device as claimed in claim 33, wherein the base has a pore connected to the first air channel.

37. The light source device as claimed in claim 33, further comprising a power connection base, wherein the power connection base is connected to a bottom of the base and is electrically connected to the light emitting device.