Light enhanced and heat dissipating bulb

• US 20060092640A1
• Filed: 11/01/2004
• Published: 05/04/2006
• Est. Priority Date: 11/01/2004
• Status: Active Grant

• Current Assignee: Taiwan Gigantic Light Electric Corporation Ltd.
• Original Assignee: Chia Mao Li
• Inventors: Li, Chia Mao
• Granted Patent: US 7,165,866 B2
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21V 29/75 with fins or blades having different shapes, thicknesses or spacing
• CPC Class Codes: F21V 29/77 with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 29/89 Metals
• 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: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

A bulb comprises a seat; a plurality of metal heat sink each having two fixing surfaces, one fixing surface being fixed with an light emitting chip; and one end of each metal heat sink being placed into an insulated frame and then being fixed to a supporting surface of a heat conductive base; the metal heat sinks having an effect of absorbing heat energy and then transferring heat to the seat so as to dissipate heat; the metal heat sinks being integrally formed with the bulb base and then being combined to the seat; the heat conductive base having an inclined surface which is advantageous to reflect light from a light emitting diode so as to increase the illumination of the light emitting chip; and a metal adhesive layer being assembled to the supporting surface of the heat conductive base and the fixing surfaces of the metal heat sinks.

Claims

1. A bulb comprising:

a seat;

a plurality of metal heat sinks each having two fixing surfaces, one fixing surface being fixed with a light emitting chip; and

one end of each metal heat sink being placed into an insulated frame and then being fixed to a supporting surface of a heat conductive base;

the metal heat sinks having an effect of absorbing heat energy and then transferring heat to the seat so as to dissipate heat;

a heat conductive base having the supporting surface for fixing the metal heat sinks;

the metal heat sinks being integrally formed with the bulb base and then being combined to the seat;

the heat conductive base is a tin surface and having an inclined surface for reflecting light from the light emitting chip so as to increase the illumination of the light emitting chip;

the heat conductive base being capable of absorbing heat energy from the metal heat sinks; and

a metal adhesive layer being assembled to the supporting surface of the heat conductive base and the fixing surfaces of the metal heat sinks.

2. The bulb as claimed in claim 1, wherein each fixing surface is one of a light dispersing plane and a light focus concave surface.

3. The bulb as claimed in claim 1, wherein a material of the metal heat sink is selected from one of gold, silver, copper, aluminum of high heat conductivity.

4. The bulb as claimed in claim 1, wherein the shape of each metal heat sink is selected from one of round shapes, rectangular shapes, and irregular shapes.

5. The bulb as claimed in claim 1, wherein each metal heat sink is placed in a frame and then is fixed to the supporting surface of the heat conductive base so as to match the requirement of different power.

6. The bulb as claimed in claim 2, wherein the material of the heat conductive base is selected from gold, silver, copper and aluminum of high heat conductivity.

7. The bulb as claimed in claim 1, wherein the heat conductive base is an independent body as a mechanical connection and then the heat conductive base is combined with a heat dissipating device.

8. The bulb as claimed in claim 1, wherein the heat conductive base is a structure as an outlook of the bulb.

9. The bulb as claimed in claim 1, wherein a heat dissipater is placed between the heat conductive base and the bulb base for dissipating heat from the heat conductive base.

10. The bulb as claimed in claim 9, wherein the heat dissipater is made of metal and has a via hole at a periphery thereof.

11. The bulb as claimed in claim 1, wherein an interior of the heat conductive base has a recess for receiving power wires of the bulb.

12. The bulb as claimed in claim 1, wherein a periphery of the bulb base is installed with a lampshade.

13. The bulb as claimed in claim 2, wherein an outer side of the seat has screw threads and a specification of the bulb matches to international standards of bulbs.

14. The bulb as claimed in claim 1, wherein the light emitting chip is light emitting diodes.

15. The bulb as claimed in claim 1, wherein the light emitting chip is an infrared chip.