LED LAMP

• US 20100165626A1
• Filed: 04/27/2009
• Published: 07/01/2010
• Est. Priority Date: 12/31/2008
• Status: Active Grant

• Current Assignee: Foxconn Technology Co., Ltd., Fuzhun Precision Industry Company Limited (Foxconn Technology Co., Ltd.)
• Original Assignee: Foxconn Technology Co., Ltd., Fuzhun Precision Industry Company Limited (Foxconn Technology Co., Ltd.)
• Inventors: LU, ZHONG-LIANG, WUNG, SHIH-HSUN, CHEN, YONG-DONG
• Granted Patent: US 8,057,076 B2
• Time in Patent Office: Days
• US Class Current: 362/249.20
• CPC Class Codes: F21V 15/015 Devices for covering joints between adjacent lighting devices; End coverings
• CPC Class Codes: F21V 21/116 Fixing lighting devices to arms or standards F21V21/002 takes precedence
• CPC Class Codes: F21V 29/763 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21W 2131/103 of streets or roads
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An LED lamp fixed to an end of a fixing rod, includes a casing, a heat dissipating member fixed to a bottom of the casing and a plurality of LED modules attached to a bottom of the heat dissipating member. The casing has a sleeve part and a mounting part integrally extending from an end of the sleeve part. A plurality of connecting plates extend inwardly along radial directions from an inner wall of the sleeve part. The fixing rod is inserted into the sleeve part of the casing and secured within free, inner ends of the connecting plates.

Claims

1. An LED (light emitting diode) lamp fixed to an end of a fixing rod, comprising:

a casing comprising a sleeve part and a mounting part integrally extending from an end of the sleeve part, a plurality of connecting plates extending inwardly along radial directions from an inner wall of the sleeve part;

a heat dissipating member fixed to a bottom of the mounting part of the casing; and

a plurality of LED modules attached to a bottom of the heat dissipating member;

wherein the fixing rod is inserted into the sleeve part of the casing, surrounded by distal ends of the connecting plates and secured to the distal ends of the connecting plates.

2. The LED lamp as claimed in claim 1, wherein the casing is integrally formed from a material with a high heat conductivity and connected to the LED modules in a thermally conductive relationship.

3. The LED lamp as claimed in claim 1, wherein a plurality of retaining plates are respectively formed at the distal ends of the connecting plates and surround the fixing rod.

4. The LED lamp as claimed in claim 3, wherein every two neighboring connecting plates are perpendicular to each other, the retaining plates cooperating with each other to form a retaining sleeve receiving the fixing rod therein.

5. The LED lamp as claimed in claim 4, wherein four threaded holes are defined in a cylindrical surface of the sleeve part of the casing and extend through the connecting plates and the retaining plates along the radial directions, four screws being screwed through the four threaded holes to press at a cylindrical surface of the fixing rod to thus lock the fixing rod in the sleeve part of the casing.

6. The LED lamp as claimed in claim 1, wherein the heat dissipating member comprises a base plate fixed to a bottom of the mounting part of the casing and a plurality of fins extending upwardly from the base plate into the mounting part of the casing, the LED modules being attached to a bottom surface of the base plate.

7. The LED lamp as claimed in claim 6, wherein two coplanar and spaced mounting plates extend inwardly from lower edges of the mounting part of the casing and contact with the base plate of the heat dissipating member, the fins being located between the mounting plates.

8. The LED lamp as claimed in claim 7, wherein the mounting part of the casing is semi-cylindrical, the mounting plates integrally extending forwardly from front ends of two coplanar connecting plates of the sleeve part of the casing, the fixing rod being securing to a rear end of the casing.

9. The LED lamp as claimed in claim 6, wherein the heat dissipating member comprises a frame extending downwardly from an edge of the base plate and an end cap formed at an end of the frame and engaging with an end of the mounting part of the casing.

10. The LED lamp as claimed in claim 9, further comprising a lens engaging with a lower edge of the frame to enclose the LED modules.

11. An LED lamp fixed to an end of a fixing rod, comprising:

a tubular casing having a plurality of connecting plates extending inwardly along radial directions from an inner wall of the casing; and

a plurality of LED modules connected to the casing in a thermally conductive relationship;

wherein the casing receives the fixing rod therein and securing the fixing rod within distal ends of the connecting plates.

12. The LED lamp as claimed in claim 11, wherein the casing is integrally formed from a material with a high heat conductivity.

13. The LED lamp as claimed in claim 11, wherein a plurality of retaining plates are respectively formed at the distal ends of the connecting plates and surround the fixing rod.

14. The LED lamp as claimed in claim 13, wherein a plurality of threaded holes are defined in a cylindrical surface of the casing and extend through the connecting plates and the retaining plates along the radial directions, a plurality of screws being screwed through the plurality of threaded holes to press at a cylindrical surface of the fixing rod to thus lock the fixing rod in the casing.

15. The LED lamp as claimed in claim 11, wherein the casing comprises a sleeve part at a rear portion thereof and a semi-cylindrical mounting part integrally extending from a front end of the sleeve part, the fixing rod being fixed in the sleeve part, the LED module being fixed below a bottom of the mounting part.

16. The LED lamp as claimed in claim 15, wherein the heat dissipating member comprises a base plate fixed to a bottom of the mounting part of the casing and a plurality of fins extending upwardly from the base plate into the mounting part of the casing, the LED modules being attached to a bottom surface of the base plate.

17. The LED lamp as claimed in claim 16, wherein two coplanar and spaced mounting plates extend inwardly from lower edges of the mounting part of the casing and contact with the base plate of the heat dissipating member, the fins located between the mounting plates.

18. The LED lamp as claimed in claim 11, wherein the tubular casing is formed by aluminum extrusion molding.