Light-emitting diode light bulb and application thereof

• US 8,113,698 B2
• Filed: 08/06/2009
• Issued: 02/14/2012
• Est. Priority Date: 03/20/2009
• Status: Expired due to Fees

• Current Assignee: Chi Mei Lighting Technology Corp. (InnoLux Corporation)
• Original Assignee: Chi Mei Lighting Technology Corp. (InnoLux Corporation)
• Inventors: Wu, Wen-Liang, Chen, Peng-Fang, Yang, Yung-Pin
• Primary Examiner(s): Husar, Stephen F
• Assistant Examiner(s): CRANSON JR, JAMES W
• Application Number:
  US12/536,511
• Publication Number:
  US 20100238672A1
• Time in Patent Office: 922 Days
• Field of Search: 362/294, 362/373, 362/249.02, 362/249.09, 362/270, 362/287
• US Class Current: 362/373
• CPC Class Codes: F21K 9/23 Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
• CPC Class Codes: F21K 9/65 specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
• CPC Class Codes: F21S 8/02 of recess-mounted type, e.g. downlighters specially adapted for vehicle exteriors F21S41/00-F21S45/00
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21V 29/74 with fins or blades
• 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: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A light-emitting diode (LED) light bulb and an application thereof are described. The light-emitting diode light bulb comprises: a light-emitting diode light source module; a base, wherein the light-emitting diode light source module is disposed on the base; and a driver portion to drive the light-emitting diode light source module, comprising a rotation shaft, wherein the driver portion is connected to the base via the rotation shaft, such that the light-emitting diode light source module can rotate relative to the driver portion.

Claims

1. A light-emitting diode light bulb, comprising:

a light-emitting diode light source module;

a base, wherein the light-emitting diode light source module is disposed on the base; and

a driver portion to drive the light-emitting diode light source module, comprising a rotation shaft, a fixed sleeve and a sliding sleeve, wherein the driver portion is connected to the base via the rotation shaft, such that the light-emitting diode light source module can rotate relative to the driver portion, and sliding sleeve is slidably disposed within the fixed sleeve.

2. The light-emitting diode light bulb according to claim 1, wherein the base further comprises a heat sink.

3. The light-emitting diode light bulb according to claim 2, wherein the heat sink comprises a plurality of heat dissipating fins.

4. The light-emitting diode light bulb according to claim 1, wherein a rotation groove is set and passes through the base, and the fixed sleeve and the sliding sleeve can rotate in the rotation groove via the rotation shaft.

5. The light-emitting diode light bulb according to claim 1, wherein the driver portion further comprises an elastic element disposed in the fixed sleeve and between the fixed sleeve and the sliding sleeve.

6. The light-emitting diode light bulb according to claim 1, wherein the driver portion further comprises a power connection port used to connect with a light fixture.

7. The light-emitting diode light bulb according to claim 1, further comprising a lamp cover covering the light-emitting diode light source module.

8. A light-emitting diode illumination device, comprising:

a light fixture including a connection socket; and

a light-emitting diode light bulb comprising;

a light-emitting diode light source module;

a base, wherein the light-emitting diode light source module is disposed on the base; and

a driver portion being assembled to the connection socket, wherein the driver portion comprises a rotation shaft, and the driver portion is connected to the base via the rotation shaft, such that the light-emitting diode light source module can rotate relative to the driver portion.

9. The light-emitting diode illumination device according to claim 8, wherein the base further comprises a heat sink.

10. The light-emitting diode illumination device according to claim 9, wherein the heat sink comprises a plurality of heat dissipating fins.

11. The light-emitting diode illumination device according to claim 8, wherein the driver portion further comprises a fixed sleeve and a sliding sleeve slidably disposed within the fixed sleeve.

12. The light-emitting diode illumination device according to claim 11, wherein a rotation groove is set and passes through the base, and the fixed sleeve and the sliding sleeve can rotate in the rotation groove via the rotation shaft.

13. The light-emitting diode illumination device according to claim 11, wherein the driver portion further comprises an elastic element disposed in the fixed sleeve and between the fixed sleeve and the sliding sleeve.

14. The light-emitting diode illumination device according to claim 8, wherein the driver portion further comprises a power connection port connecting with the connection socket.

15. The light-emitting diode illumination device according to claim 8, wherein the light-emitting diode light bulb further comprises a lamp cover covering the light-emitting diode light source module.

16. The light-emitting diode illumination device according to claim 8, wherein the light-emitting diode illumination device is a recessed lamp.

17. The light-emitting diode illumination device according to claim 8, wherein the connection socket laterally extends from an inner side surface of the light fixture, and the driver portion is located on an outer side surface of the base.

18. The light-emitting diode illumination device according to claim 8, wherein the connection socket is located on a top surface of the light fixture, and the driver portion is located on a rear end of the base.