High Power LED Lamp

• US 20100176706A1
• Filed: 06/06/2008
• Published: 07/15/2010
• Est. Priority Date: 06/07/2007
• Status: Active Grant

• Current Assignee: Zhejiang Mingchuang Opto-Electronic Technologh Company Limited
• Original Assignee: Zhejang Mingchuang Opto-Electronic Technology Company
• Inventors: Wang, Xiao, Fang, Xiaoming, Fu, Dejun, Su, Guangyao
• Granted Patent: US 8,246,213 B2
• Time in Patent Office: Days
• US Class Current: 313/46
• CPC Class Codes: F21V 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21V 29/505 of reflectors
• 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 high-power LED lamp, including: a shell, a light-emitting assembly, heat dissipating fins, the light-emitting assembly includes a reflective bowl, a LED and a lens, characterized in that, the heat dissipating fins are radially installed in the channel of the shell, the outer end of each heat dissipating fins is connected with the inner wall of the shell, with the inner end linked to the outer wall of a circular cylinder, all of the front end faces of the heat dissipating fins form a cone-shaped concave torus, the reflective bowl is provided on the cone-shaped concave torus; the axis of the circular cylinder coincides with the axis of the shell, the front end face of the circular cylinder is planar, and the LED and the lens are installed on the surface. Compared with the prior art, the radially fenced-shaped heat-dissipating fins communicating from the front to the rear are provided in the shell, which will be more conducive to the air ventilation around the heat-dissipating fins, as well as heat transfer, and remove the heat generated by the LED nodes in time to improve the effect of heat dissipation.

Claims

1. A high-power LED lamp including:

a shell (19), a light-emitting assembly, and heat dissipating fins (10);

the light-emitting assembly includes a reflective bowl (15a), a LED (13) and a lens (15;

the heat dissipating fins (10) are radially installed in a channel of the shell, a outer end of each one of the heat dissipating fins (10) is connected with a inner wall of the shell (19), with a inner end linked to an outer wall of a circular cylinder (9), all of front end faces of the heat dissipating fins (10) form a cone-shaped concave torus, the reflective bowl (15a) is provided on the cone-shaped concave torus;

an axis of the circular cylinder (9) coincides with an axis of the shell, a front end face of the circular cylinder (9) is a plane, and a LED (13) and a lens (15) are installed on the plane.

2. The high-power LED lamp of claim 1, wherein a driving power supply (7) is installed in the circular cylinder (9), a pressing lens cover (16) is at the front end of the circular cylinder (9), a rear end cover (5) is provided at the rear portion, the lens (15) is installed between the front end face of the circular cylinder (9) and the pressing lens cover (16).

3. The high-power LED lamp of claim 1, wherein the shell (19), the heat dissipating fins (10), the circular cylinder (9), and the reflective bowl (15a) form a non-removable integral piece.

4. The high-power LED lamp of claim 1, wherein heat dissipating channels formed by the fence-shaped heat dissipating fins are distributed in areas both inside and outside of a ring of the reflective bowl (15a).

5. The high-power LED lamp of claim 2, wherein the pressing lens cover (16), the circular cylinder (9) and the rear end cover (5) are joined into an integral sealing body by a connecting bolt (1).

6. The high-power LED lamp of claim 1, wherein the shell (19) has a cylinder shape.

7. The high-power LED lamp of claim 1, wherein the shell (19) has a multiple rhombic shape.

8. The high-power LED lamp of claim 1, wherein a positioning bracket is provided on the shell (19).

9. The high-power LED lamp of claim 1, wherein heat dissipating through holes are provided in the shell (19).

10. The high-power LED lamp of claim 2, wherein the shell (19), the heat dissipating fins (10), the circular cylinder (9), and the reflective bowl (15a) form a non-removable integral piece.