LED lamp

• US 20110128730A1
• Filed: 12/01/2009
• Published: 06/02/2011
• Est. Priority Date: 12/01/2009
• Status: Active Grant

• Current Assignee: Davinci Industrial Inc.
• Original Assignee: Davinci Industrial Inc.
• Inventors: Chiu, Hua-Jung
• Granted Patent: US 7,993,025 B2
• Time in Patent Office: Days
• US Class Current: 362/235
• 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 29/773 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

An LED lamp includes a heat dissipating body, a rotating front cover, an LED assembly, a lens assembly, a driving unit, and a socket. The heat dissipating body has a plurality of fins for dissipating heat. The rotating front cover is rotatably disposed in the front side of the heat dissipating body, the inner wall of the rotating front ring has a screwed channel. The LED assembly is disposed in the heat dissipating body. The lens assembly has a screwed thread mating to the screwed channel and disposed in the heat dissipating body. The lens assembly can be moved via rotating the rotating front cover. As a result, the illuminating angle of the LED lamp is adjustable.

Claims

1. An LED lamp with adjustable illuminating angle, comprising:

a heat dissipating body having a plurality of fins, the fins being disposed around the heat dissipating body;

a rotating front cover being rotatably disposed in the front side of the heat dissipating body, the inner wall of the rotating front cover has a screwed channel;

an LED assembly being disposed in the heat dissipating body, the LED assembly comprises a printed circuit board, a plurality of LEDs, a mounting plate, a fixing ring, and two guiding bosses,

wherein the printed circuit board is mounted on the mounting plate,

wherein the plurality of LEDs is disposed on the printed circuit board,

wherein the two guiding bosses are disposed on the fixing ring,

wherein the fixing ring is for fixing the mounting plate;

an lens assembly having a screwed thread mating to the screwed channel and disposed in the heat dissipating body, the lens assembly being moved via rotating the rotating front cover;

a driver unit being disposed in the heat dissipating body and electrically connected with the LED assembly; and

a socket being disposed at one end of the driver unit.

2. The LED lamp with adjustable illuminating angle according to claim 1, wherein the heat dissipating body has a first accommodating space and a second accommodating space, the front ring, the LED assembly, the lens assembly are disposed in the first accommodating space, the driving unit is disposed in the second accommodating space.

3. The LED lamp with adjustable illuminating angle according to claim 1, wherein the heat dissipating body has a fixing groove, the fixing groove is around the outside of fins, and a heat preventing element being disposed in the fixing groove for protecting user from getting hurt.

4. The LED lamp with adjustable illuminating angle according to claim 1, wherein the heat dissipating body has a heat dissipating groove, the heat dissipating groove is around the inside of fins for dissipating heat.

6. The LED lamp with adjustable illuminating angle according to claim 1, wherein the lens assembly comprises a lens moving ring, a lens, and a lens fixing ring the screw thread is around the wall of the lens moving ring, the lens is fixed between the lens fixing ring and the lens moving ring.

7. The LED lamp with adjustable illuminating angle according to claim 1, wherein the lens fixing ring has two concave portions, the two guiding bosses are respectively limited in the two concave portions for preventing the lens assembly from rotating.

8. The LED lamp with adjustable illuminating angle according to claim 1, wherein the driving unit comprises a driver box and a driver, the driver is accommodated in the driver box and electrically connected with the LED assembly.

10. The LED lamp with adjustable illuminating angle according to claim 1, wherein the fins are shaped into a radiate shape.

5. (canceled)

9. (canceled)