HEAT DISSIPATING APPARATUS FOR LIGHTING UTILITY

• US 20060193139A1
• Filed: 02/25/2005
• Published: 08/31/2006
• Est. Priority Date: 02/25/2005
• Status: Active Grant

• Current Assignee: Edison Opto Corporation
• Original Assignee: Edison Opto Corporation
• Inventors: Tsai, Cheng-Hung, Sun, Tsung-Ting
• Granted Patent: US 7,144,140 B2
• Time in Patent Office: Days
• US Class Current: 362/373
• CPC Class Codes: F21K 9/233 specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
• CPC Class Codes: F21V 29/51 using condensation or evaporation of a fluid, e.g. heat pipes
• CPC Class Codes: F21V 29/67 characterised by the arrangement of fans
• CPC Class Codes: F21V 29/673 the fans being used for intake
• CPC Class Codes: F21V 29/677 the fans being used for discharging
• CPC Class Codes: F21V 29/75 with fins or blades having different shapes, thicknesses or spacing
• CPC Class Codes: F21V 29/773 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A heat dissipating apparatus for lighting utility includes a casing, a light-focusing unit, a light-reflecting unit, a heat-dissipating unit, a light generator, a wind generator, a cover and a circuit board. The heat-dissipating unit absorbs a heat generated from the light generator, the wind generator circulates air outside the casing and inside the casing, whereby the heat absorbed by the heat-dissipating unit is dissipated outside the casing.

Claims

1. A heat dissipating apparatus for lighting utility, comprising

a casing comprising a bulge portion at front side thereof and the bulge portion comprising at least one vent hole communicating with a hollow of the casing;

a light-reflecting unit arranged in the casing;

a heat-dissipating unit arranged on the light-reflecting unit and comprising at least one contact section in contact with the casing;

a light generator arranged on the heat-dissipating unit and corresponding to the light-reflecting unit; and

a wind generator arranged on the heat-dissipating unit,

wherein the heat-dissipating unit absorbs a heat generated from the light generator, the wind generator circulates air outside the casing and inside the casing, whereby the heat absorbed by the heat-dissipating unit is dissipated outside the casing.

2. The heat dissipating apparatus as in claim 1, wherein the casing is made of thermally conductive material and comprises of a plurality of vent holes on the bulge portion positioned at an upper portion.

3. The heat dissipating apparatus as in claim 1, wherein the bulge portion comprises an inner wall to define an entrance.

4. The heat dissipating apparatus as in claim 3, wherein the inner wall comprises at least one clamping hole.

5. The heat dissipating apparatus as in claim 1, wherein the casing comprising a passageway therein.

6. The heat dissipating apparatus as in claim 1, wherein the light-reflecting unit comprises an opening defined on one side thereof and a light-reflecting face therein, an inlet is defined at another side of the light-reflecting unit and at least one convex is arranged on peripheral of the opening.

7. The heat dissipating apparatus as in claim 6, wherein a light-focusing unit is assembled to the opening.

8. The heat dissipating apparatus as in claim 7, wherein the light-focusing unit is a lens.

9. The heat dissipating apparatus as in claim 1, wherein the heat-dissipating unit is made of thermally conductive metal and composed of a plurality of fins.

10. The heat dissipating apparatus as in claim 1, wherein the heat-dissipating unit is one of thermal conductive plate, isothermal plate and heat pipe.

11. The heat dissipating apparatus as in claim 1, wherein the light generator is one of LED and light bulb.

12. The heat dissipating apparatus as in claim 1, further comprising a cover on a bottom of the casing.

13. The heat dissipating apparatus as in claim 12, wherein the cower comprises a flange in contact with the bottom of the casing and comprising a plurality of slots therein.

14. The heat dissipating apparatus as in claim 1, further comprising a power input arranged on one face of the cover.

15. The heat dissipating apparatus as in claim 1, wherein the wind generator is a fan.

16. The heat dissipating apparatus as in claim 15, wherein the wind generator is arranged on one side of the heat-dissipating unit.

17. The heat dissipating apparatus as in claim 1, further comprising a circuit board.

18. The heat dissipating apparatus as in claim 1, wherein a thermal radiating material is coated or sprayed on outer face of the casing to enhance heat dissipating for the casing.

19. (canceled)

20. (canceled)