LED lamp

• US 8,021,024 B2
• Filed: 07/31/2009
• Issued: 09/20/2011
• Est. Priority Date: 05/19/2009
• Status: Expired due to Fees

• 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: Huang, Xing-Gui
• Primary Examiner(s): Husar; Stephen F
• Assistant Examiner(s): CRANSON JR, JAMES W
• Application Number:
  US12/533,001
• Publication Number:
  US 20100296287A1
• Time in Patent Office: 781 Days
• Field of Search: 362/249.02, 362/294, 362/373, 362/371, 362/267
• US Class Current: 362/294
• CPC Class Codes: F21S 6/00 Lighting devices intended to be free-standing F21S9/00, F21S10/00, F21S13/12 take precedence lighting devices specially adapted to be transported from place to place, e.g. lighting devices carried on wheeled supports F21L; details of supports for lighting devices F21V21/00
• CPC Class Codes: F21S 8/06 by suspension
• CPC Class Codes: F21V 15/013 the housing being an extrusion
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• 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: F21V 29/89 Metals
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An LED lamp includes a monolithic housing made of metal extrusion and comprising a heat sink and a receiving portion integrally extending from a bottom of the heat sink, a plurality of LED modules attached to the heat sink, a cover covering the LED modules and a supporting bracket mounted on the housing. The heat sink includes a planar base and a plurality of fins extending from a top face of the base. The receiving portion includes a frame defining a window at a center thereof and two sidewalls interconnecting the frame and the base. The frame, the sidewalls and the base cooperatively define a receiving chamber for accommodating the LED modules therein. The LED modules are attached to the base and located corresponding to the window of the frame. The cover is mounted on a bottom of the frame and correspondingly covers the window.

Claims

1. An LED lamp comprising:

a monolithic housing comprising a heat sink and a receiving portion integrally extending from a bottom of the heat sink, the heat sink comprising a planar base and a plurality of fins extending from a top face of the base, the receiving portion comprising a frame defining a window at a center thereof and two sidewalls interconnecting the frame and the base, and the frame, the sidewalls and the base cooperatively defining a receiving chamber;

a plurality of LED modules attached to the base of the housing and accommodated in the receiving chamber of the housing, and the LED modules located corresponding to the window of the frame, whereby light generated by the LED modules radiates through the window;

a cover mounted on a bottom of the frame and correspondingly covering the window; and

a supporting bracket mounted on the housing.

2. The LED lamp of claim 1, wherein the frame is spaced from and parallel to the base.

3. The LED lamp of claim 2, wherein the base and the frame are both in rectangular shape.

4. The LED lamp of claim 3, wherein the two sidewalls interconnect left and right sides of the frame and the base, respectively.

5. The LED lamp of claim 4, wherein two openings are defined at front and rear sides of the receiving portion, respectively.

6. The LED lamp of claim 5 further comprising two lateral plates fixed to the receiving portion and correspondingly covering the two openings of the receiving portion, respectively.

7. The LED lamp of claim 6 further comprising two sealing boards sandwiched between the two lateral plates and the receiving portion, respectively.

8. The LED lamp of claim 1, wherein a plurality of elongated heat-absorbing portions protrude downwardly from a bottom face of the base and are spaced from each other, and the LED modules are thermally attached to the heat-absorbing portions, respectively.

9. The LED lamp of claim 1, wherein a plurality of spaced blocks protrude upwardly from a top face of the frame towards the base, and a screw hole is defined in one of the blocks.

10. The LED lamp of claim 1 further comprising a pressing frame securing the cover to the frame, the pressing frame defines a hole at a center thereof corresponding to the window of the frame.

11. The LED lamp of claim 10, wherein a top face of the pressing frame depresses downwardly to form an annular recess surrounding the hole for receiving an edge of the cover.

12. The LED lamp of claim 10, wherein two lateral walls extend upwardly from a left and right sides of the pressing fame, respectively, and the two lateral walls are attached to outer faces of the two sidewalls of the receiving portion of the housing, respectively.

13. The LED lamp of claim 1, wherein the supporting bracket comprises a straight section located above the housing and two connecting sections respectively bended from two opposite ends of the straight section, and the two connecting sections are fixed to the two sidewalls of the receiving portion of the housing, respectively.

14. The LED lamp of claim 13, wherein two screws extend through the two connecting sections and into the two sidewalls, respectively, and the supporting bracket is pivotable on the two screws relative to the housing.

15. The LED lamp of claim 1, wherein the heat sink defines a through hole communicating with the receiving chamber, and a waterproof connector is received in the through hole.

16. The LED lamp of claim 1, wherein the housing is made of metal extrusion.

17. The LED lamp of claim 1, wherein the housing is made of aluminum extrusion.