Lightweight LED lamp

• US 7,758,207 B1
• Filed: 07/17/2009
• Issued: 07/20/2010
• Est. Priority Date: 03/17/2009
• 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: Chen, Yong-Dong, Wung, Shih-Hsun, Zhou, Qin-Fei
• Primary Examiner(s): TSO, LAURA K
• Application Number:
  US12/504,680
• Time in Patent Office: 368 Days
• Field of Search: 362/249, 362/800, 362/218, 362/294, 362/373, 362/249.1, 362/247, 362/217.01, 362/217.02, 362/217.05, 362/225, 362/217.1, 362/217.11, 362/217.12, 362/217.13
• US Class Current: 362/218
• CPC Class Codes: F21S 8/06 by suspension
• CPC Class Codes: F21V 15/013 the housing being an extrusion
• 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 2113/00 Combination of light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

An LED lamp comprises two spaced elongated side plates, a heat conducting base plate, an LED module, two reflecting plates, a suspension member and an envelope. The base plate is transversely disposed between the two side plates. The LED module is mounted on a bottom surface of the base plate. Two reflecting plates are located below the base plate and attached to the two side plates, respectively, to thereby reflect light generated by the LED module. The suspension member engages with upper portions of the two side plates. The envelope engages with two lower portions of the two side plates to allow light generated by the LED module to radiate therethrough.

Claims

1. An LED lamp comprising:

a holding member comprising two elongated side plates spaced at a distance, each of the two side plates comprising an upper fixing portion, a lower fixing portion and a connection portion connected between the upper and lower fixing portions;

a heat sink comprising a base plate, two edges of the base plate engaging with two connection portions of the two side plates, respectively;

an LED module mounted on a bottom surface of the base plate of the heat sink;

a reflection module located below the base plate of the heat sink to reflect light generated by the LED module;

a suspension member engaging with the two upper fixing portions of the two side plates; and

an envelope engaging with the two lower fixing portions of the two side plates to allow light generated by the LED module to radiate therethrough.

2. The LED lamp of claim 1, wherein the two side plates are made of extruded plastic.

3. The LED lamp of claim 2, wherein the suspension member is made of extruded plastic.

4. The LED lamp of claim 3, wherein the suspension member has an inverted U-shaped configuration and comprises a securing panel and two engaging walls extending downwardly from two ends of the securing panel, the two engaging walls engage with the two upper fixing portions of the two side plates, respectively.

5. The LED lamp of claim 4, wherein each of the two engaging walls includes an arc body connected to the securing panel and a coupling plate extending outwardly from a free, lower end of the body, outer surfaces of two coupling plates of the two engaging walls are fixed to inner surfaces of the two upper fixing portions of the two side plates, respectively.

6. The LED lamp of claim 4, wherein the connection portion of each of the two side plates defines an elongated slot, the two edges of the base plate of the heat sink are slidably inserted in the two slots of the two connection portions of the two side plates, respectively, along an extending direction of the slots.

7. The LED lamp of claim 4, wherein the two lower fixing portions of the two side plates define two grooves facing each other and receive two opposite lateral sides of the envelope, respectively.

8. The LED lamp of claim 4, wherein the reflection module comprises two elongated reflecting plates attached to the two side plates, respectively.

9. The LED lamp of claim 8, wherein an extension plate extends upwardly and inwardly from the lower fixing portion of each of the two side plates, and one of the reflecting plates is attached to the extension plate.

10. The LED lamp of claim 9, wherein a lower part of one of the reflecting plate is attached to the extension plate, and an upper edge of the reflecting plate contacts with the bottom surface of the base plate of the heat sink.

11. The LED lamp of claim 1, wherein a plurality of fins protrudes upwardly from a top surface of the base plate of the heat sink.

12. The LED lamp of claim 8, further comprising two baffling plates located at two opposite ends of the two side plates, respectively.

13. The LED lamp of claim 12, further comprising two side reflecting plates attached to the two baffling plates, respectively.

14. The LED lamp of claim 1, the reflection module is made of polycarbonate resin.

15. An LED lamp comprising:

two spaced elongated side plates;

a heat conducting base plate transversely disposed between the two side plates;

an LED module mounted on a bottom surface of the base plate;

two reflecting plates located below the base plate and attached to the two side plates, respectively, to thereby reflect light generated by the LED module;

a suspension member engaging with upper portions of the two side plates; and

an envelope engaging with two lower portions of the two side plates to allow light generated by the LED module to radiate therethrough.

16. The LED lamp of claim 15, the side plates and the suspension member made of extruded plastic.

17. The LED lamp of claim 15, wherein the reflecting plates are made of plastic material.

18. The LED lamp of claim 15, further comprising two baffling plates sandwiching two opposite ends of the two side plates therebetween.

19. The LED lamp of claim 18, further comprises two side reflecting plates attached to the two baffling plates, respectively.