LED STREET LAMP

• US 20120008329A1
• Filed: 07/06/2010
• Published: 01/12/2012
• Est. Priority Date: 07/06/2010
• Status: Abandoned Application

• Current Assignee: Chin-Wen Wang, Leader Technologies Incorporated
• Original Assignee: Chin-Wen Wang, Leader Technologies Incorporated
• Inventors: WANG, Chin-Wen
• Application Number:
  US12/830,616
• Publication Number:
  US 20120008329A1
• Time in Patent Office: Days
• US Class Current: 362/372
• CPC Class Codes: F21V 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21V 21/116 Fixing lighting devices to arms or standards F21V21/002 takes precedence
• 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 29/717 using split or remote units thermally interconnected, e.g. by thermally conductive bars or heat pipes
• CPC Class Codes: F21V 29/76 with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
• CPC Class Codes: F21W 2131/103 of streets or roads
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y02B 20/72 in street lighting

Abstract

A LED street lamp including a housing, a lighting module, a metal base, and a heat dissipating module. The housing includes a bottom shell and a top shell both with openings. The lighting module is arranged in the housing. The heat dissipating module includes a metal base, a plurality of heat pipes, and a plurality of heat dissipating fins. The metal base includes a first plate and a second plate attached together. The first plate is thermally contacted with the lighting module. The heat pipes each have a heat absorbing section and a heat dissipating section. The heat absorbing section is arranged between the first plate and the second plate. The heat dissipating section is extending away from a side of the metal base. The heat dissipating fins are arranged on the heat dissipating sections. Air in the housing can naturally flow upwardly to effectively dissipate operating heat.

Claims

1. A LED street lamp, comprising:

a lamp housing comprising a bottom shell and a top shell accordingly covered on the bottom shell, the bottom shell and the top shell cooperatively defining an accommodating space, the bottom shell formed with an opening and a plurality of first heat dissipating holes away from the opening, the top shell formed with a plurality of second heat dissipating holes corresponding to the first heat dissipating holes;

a lighting module arranged in the accommodating space and corresponding to the opening, the lighting module comprising a circuit board and a plurality of LEDs disposed on the circuit board;

a metal base comprising a first plate and a second plate attached with the first plate, the first plate thermally contacted with the circuit board;

a plurality of heat pipes each comprising a heat absorbing section and a heat dissipating section, the heat absorbing section horizontally arranged between the first plate and the second plate, the heat dissipating section horizontally extending away from a lateral side of the metal base; and

a plurality of heat dissipating fins arranged on the heat dissipating sections of the heat pipes and being parallel to each other.

2. The LED street lamp as claim 1, wherein the first heat dissipating holes are formed at two opposite sides of the bottom shell and the second heat dissipating holes are formed at two opposite sides of the top shell.

3. The LED street lamp as claim 1, wherein the heat dissipating section has a first heat dissipating section and a second heat dissipating section, the first heat dissipating section extends toward a side of the lamp housing and the second heat dissipating section extends toward another side of the lamp housing.

4. The LED street lamp as claim 3, wherein the heat dissipating fins has a plurality of first heat dissipating fins and a plurality of second heat dissipating fins, the first heat dissipating fins are passed through the first heat dissipating section and the second heat dissipating fins are passed through the second heat dissipating section.

5. The LED street lamp as claim 1, wherein a plurality of fixing holes are formed adjacent to the opening of the bottom shell, the first plate and the second plate each have a plurality of screw holes and are fixed on the bottom shell.

6. The LED street lamp as claim 1, further comprising a vapor chamber heat sink arranged between the lighting module and the first plate and contacted with the first plate.

7. The LED street lamp as claim 1, further comprising a lamp base, wherein the lighting module and the metal base are connected to the lamp base.

8. A LED street lamp, comprising:

a lamp housing comprising a bottom shell and a top shell accordingly covered on the bottom shell, the bottom shell and the top shell cooperatively defining an accommodating space, the bottom shell formed with an opening and a plurality of first heat dissipating holes away from the opening, the top shell formed with a plurality of second heat dissipating holes corresponding to the first heat dissipating holes, the bottom shell comprising a connecting base adjacent to the first heat dissipating holes;

a lighting module arranged in the accommodating space and corresponding to the opening;

a metal base comprising a first plate and a second plate attached with the first plate, the first plate thermally contacted with the circuit board;

a plurality of heat pipes each comprising a heat absorbing section and a heat dissipating section, the heat absorbing section horizontally arranged between the first plate and the second plate, the heat dissipating section horizontally extending away from a lateral side of the metal base;

a plurality of heat dissipating fins arranged on the heat dissipating sections of the heat pipes and being parallel to each other; and

an adjustable lamp post comprising a fixing frame and a tube connected to the connecting frame, the connecting frame pivotally connected to the connecting base so as to adjust the angle between the tube and the connecting base.

9. The LED street lamp as claim 8, wherein the first heat dissipating holes are formed at two opposite sides of the bottom shell and the second heat dissipating holes are formed at two opposite sides of the top shell.

10. The LED street lamp as claim 9, wherein the heat dissipating section has a first heat dissipating section and a second heat dissipating section, the first heat dissipating section extends toward a side of the lamp housing and the second heat dissipating section extends toward another side of the lamp housing.

11. The LED street lamp as claim 10, wherein the heat dissipating fins has a plurality of first heat dissipating fins and a plurality of second heat dissipating fins, the first heat dissipating fins are passed through on the first heat dissipating section and the second heat dissipating fins are passed through the second heat dissipating section.

12. The LED street lamp as claim 8, wherein a plurality of fixing holes are formed adjacent to the opening of the bottom shell, the first plate and the second plate each have a plurality of screw holes and are fixed on the bottom shell.

13. The LED street lamp as claim 8, further comprising an detent pin, the connecting base having a plurality of first pivotal holes, the connecting frame having a plurality of second pivotal holes, the detent pin inserted into one of the first pivotal holes and one of the second pivotal holes.

14. The LED street lamp as claim 8, further comprising a vapor chamber heat sink arranged between the lighting module and the first plate and contacted with the first plate.

15. The LED street lamp as claim 8, further comprising a lamp base, wherein the lighting module and the metal base are connected to the lamp base.