LED LAMP

• US 20110002120A1
• Filed: 10/23/2009
• Published: 01/06/2011
• Est. Priority Date: 07/03/2009
• 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: Song, Guang, Liu, You-Xue
• Granted Patent: US 8,066,404 B2
• Time in Patent Office: Days
• US Class Current: 362/249.02
• CPC Class Codes: F21S 2/005 of modular construction
• CPC Class Codes: F21V 21/005 for several lighting devices in an end-to-end arrangement, i.e. light tracks
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21V 23/00 Arrangement of electric circuit elements in or on lighting devices characterised by cooling arrangements F21V29/508
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/71 using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
• CPC Class Codes: F21V 29/76 with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
• 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: F21V 5/007 Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane combination of two or more refractors F21V5/008
• CPC Class Codes: F21W 2131/101 of tunnels or the like, e.g. under bridges
• CPC Class Codes: F21Y 2103/00 Elongate light sources, e.g. fluorescent tubes
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/20 Electroluminescent [EL] light sources

Abstract

An LED lamp includes a plurality of LED light units juxtaposed together and a connecting member engaging with the LED light units. Each LED light unit includes a heat sink and an LED module engaged on the heat sink. The heat sink defines a groove group at each lateral portion thereof. The connecting member includes a plurality of inserts received in grooves of the groove groups of the heat sinks of neighboring LED light units and clasping the neighboring LED light units together thereby to secure the LED light units into the LED lamp.

Claims

1. An LED (light emitting diode) lamp, comprising:

a plurality of LED light units juxtaposed together, each LED light unit comprising a heat sink and an LED module engaged on the heat sink, the heat sink defining a groove group at a lateral portion thereof; and

a connecting member comprising a plurality of inserts received in the groove groups of the heat sinks of neighboring ones of the LED light units and clasping the neighboring ones of the LED light units together thereby to secure the LED light units into the LED lamp.

2. The LED lamp as claimed in claim 1, wherein the groove groups of the neighboring ones of the LED lamp units form a channel receiving the connecting member therein, the channel having a cross-section corresponding to a cross-section of the connecting member.

3. The LED lamp as claimed in claim 2, wherein the connecting member comprises a middle portion, the inserts extending from two sides of the middle portion.

4. The LED lamp as claimed in claim 3, wherein the inserts each have an outer end thicker than an inner end near the middle portion.

5. The LED lamp as claimed in claim 2, wherein an amount of the inserts is four, and the cross-section of the connecting member is X-shaped.

6. The LED lamp as claimed in claim 5, wherein the groove group of the heat sink has a first groove and a second groove spaced from the first groove, the first and second grooves receiving the inserts of the connecting member.

7. The LED lamp as claimed in claim 1, wherein the heat sink of each LED light unit is made of aluminum extrusion and is extruded along a direction from one end to another end of the heat sink.

8. The LED lamp as claimed in claim 1, wherein the inserts of the connecting member define a plurality of notches therein, a plurality of fixing members mounted on the heat sinks and engaged into the notches to prevent the connecting member from sliding in the groove groups.

9. The LED lamp as claimed in claim 1, wherein the LED light units are juxtaposed in a in a matrix.

10. The LED lamp as claimed in claim 1, wherein the heat sink is made of metal extrusion and comprises a heat spreader and two walls extending from two lateral edges of the heat spreader, each wall defining the groove groups along the extruded direction of the heat sink to receive the connecting member.

11. The LED lamp as claimed in claim 10, wherein the heat sink further comprises two aluminous blocks welded at opposite ends of the heat sink to enclose the LED module.

12. The LED lamp as claimed in claim 11, wherein the blocks and the walls of each heat sink cooperatively define a groove at a top thereof for receiving a waterproof gasket.

13. An LED (light emitting diode) lamp, comprising:

a plurality of LED light units connected together, each of the LED light units defining at least a groove at each side thereof, the grooves of neighboring ones of the LED lamp units cooperatively form a channel; and

a connecting member received in the channel of the neighboring ones of the LED light units and clasping the neighboring ones of the LED light units together thereby to secure the LED light units together to form the LED lamp.

14. The LED lamp as claimed in claim 13, wherein the channel has a cross-section the same as a cross-section of the connecting member.

15. The LED lamp as claimed in claim 13, wherein the connecting member forms a plurality of inserts fittingly inserting into the grooves, and the inserts define a plurality of notches therein, a plurality of fixing members being mounted on the LED lamp units and engaged into the notches to prevent the connecting member from sliding in the channel.