EVEN LUMINANCE, HIGH HEAT DISSIPATION EFFICIENCY, HIGH POWER LED LAMP STRUCTURE

• US 20100027269A1
• Filed: 09/30/2008
• Published: 02/04/2010
• Est. Priority Date: 07/29/2008
• Status: Abandoned Application

• Current Assignee: Wei-Hung Lo
• Original Assignee: Wei-Hung Lo
• Inventors: Tsai, Chi-Ruei, LO, Wei-Hung
• Application Number:
  US12/241,668
• Publication Number:
  US 20100027269A1
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21V 15/015 Devices for covering joints between adjacent lighting devices; End coverings
• CPC Class Codes: F21V 29/713 in direct thermal and mechanical contact of each other to form a single system
• CPC Class Codes: F21V 29/75 with fins or blades having different shapes, thicknesses or spacing
• CPC Class Codes: F21V 29/763 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 29/89 Metals
• CPC Class Codes: F21V 31/005 Sealing arrangements therefor
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An even luminance, high heat dissipation efficiency, high power LED lamp structure includes an aluminum extrusion body, an aluminum die cast front casing and an aluminum die cast rear casing respectively provided at two distal ends of the aluminum extrusion body, a PC board mounted inside the aluminum extrusion body, LEDs mounted in different LED mounting faces of the PC board at different angles, an inner cover plate decorating the inside of the aluminum die cast front casing, a transparent outer cover covering the bottom side of the aluminum extrusion body and sealed with a water seal, and a retaining device fastened to the aluminum extrusion body to secure the transparent outer cover in place.

Claims

1. An even luminance, high heat dissipation efficiency, high power LED lamp structure, comprising:

a front casing;

a body, said body comprising a first end, a second end opposite to said first end, and an accommodation space, said first end being connected with said front casing;

a rear casing, said rear casing comprising a first end connected to the second end of said body, a second end opposite to the first end of said rear casing, and a connection means provided at the second end of said rear casing;

a printed circuit board mounted in said accommodation space inside said body; and

at least one light emitting diode installed in said printed circuit board for emitting light.

2. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 1, wherein said front casing and said rear casing are aluminum die cast members.

3. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 1, wherein said body is an aluminum extrusion member.

4. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 1, further comprising an inner cover plate mounted in said front casing for decoration.

5. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 1, further comprising a gasket plate set in between said front casing and said body to prevent penetration of rainwater into said body.

6. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 1, further comprising water seal means peripherally sealed between said body and said light transmissive outer cover.

7. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 6, further comprising a light transmissive outer cover fastened to a bottom side of said body and covered over said printed circuit board for output of light from said at least one light emitting diode.

8. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 1, further comprising a retaining device provided at a bottom side of said light transmissive outer cover to secure said light transmissive outer cover to said body, said retaining device comprising a connection means connected to the connection means of said rear casing.

9. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 1, wherein said printed circuit board is an aluminum printed circuit board formed of an aluminum substrate for providing circuit means for the installation of said at least one light emitting diode and for dissipating heat from said at least one light emitting diode.

10. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 1, wherein said body comprises a plurality of radiation fins protruded from an outside wall thereof for heat dissipation.

11. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 1, wherein said at least one light emitting diode each is a high power light emitting diode.

12. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 7, wherein said light transmissive outer cover is a transparent cover selectively made of one of the materials of transparent glass and transparent plastics.

13. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 6, wherein said water seal means is formed of a rubber packing strip and

14. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 1, wherein said printed circuit board comprises a plurality of LED mounting faces disposed at different angles for supporting a plurality of light emitting diodes of said at least one light emitting diode at different angles.

15. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 1, further comprising at least one optical member disposed below said light emitting diodes for changing the radiating angle of said light emitting diodes.

16. The even luminance, high heat dissipation efficiency, high power LED lamp structure as claimed in claim 15, wherein said optical member is a lens or a light reflection cup.