Assembling structure for LED road lamp and heat dissipating module

• US 7,329,030 B1
• Filed: 08/17/2006
• Issued: 02/12/2008
• Est. Priority Date: 08/17/2006
• Status: Expired due to Fees

• Current Assignee: Pyroswift Holding Co., Limited
• Original Assignee: Augux Co., Ltd.
• Inventors: Wang, Pei-Choa
• Primary Examiner(s): Alavi; Ali
• Application Number:
  US11/465,210
• Publication Number:
  US 20080043479A1
• Time in Patent Office: 544 Days
• Field of Search: 362/373, 362/294, 362/547, 362/545, 362/431, 362/267, 362/311, 165/104.24, 165/104.11, 257/712, 257/714
• US Class Current: 362/373
• CPC Class Codes: F21K 9/00 Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• CPC Class Codes: F21S 8/086 with lighting device attached sideways of the standard, e.g. for roads and highways
• CPC Class Codes: F21V 29/51 using condensation or evaporation of a fluid, e.g. heat pipes
• 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 29/767 the planes containing the fins or blades having directions perpendicular to the light emitting axis
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• 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

In an assembling structure for LED road lamp and heat dissipating module, the LED road lamp includes a partition board, an upper casing, a light transmitting lens and an LED lamp set. The upper casing and the light transmitting lens are set separately on upper and lower sides of the partition board. Each LED lamp set is contained in a space enclosed by the partition board and the light transmitting lens. The partition board has a plurality of through holes, and the LED lamp set includes a frame body and an LED module. The heat dissipating module includes a heat dissipating body, a heat pipe and an isothermal board. The heat dissipating body is set in a space enclosed by the partition board and the upper casing, and the heat pipe has a heat discharging end passing through and connecting the partition board and the heat dissipating body and a heat receiving end forming the bottom of the partition board. The isothermal board is fixed onto a frame body of the LED lamp and has two planes separately attached onto the heat receiving end and the LED module, so as to significantly enhance the overall heat conducting and dissipating performance, drive an LED to emit light at a lower temperature, and extend the life expectancy of the LED.

Claims

1. An assembling structure for LED road lamp and heat dissipating module, comprising:

an LED road lamp, comprising;

a partition board, having a plurality of through holes thereon;

an upper casing, covered and coupled onto the partition board to define a containing space;

a light transmitting lens, sealed to the bottom of the partition board to define an airtight space;

a plurality of LED lamp sets, contained in the airtight space of the partition board and the light transmitting lens, and having a frame body and an LED module fixed in the frame body; and

a heat dissipating module, comprising;

a heat dissipating body, disposed in the containing space of the partition board and the upper casing;

a plurality of heat pipes, each having a heat receiving end and a heat discharging end, and the heat discharging end passing through a through hole of the partition board and the heat dissipating body, and the heat receiving end being formed at the bottom of the partition board;

a plurality of isothermal boards, each being fixed onto a frame body of the LED lamp set and two planes of the isothermal board being attached to the heat receiving end of the heat pipe and the LED module.

2. The assembling structure for LED road lamp and heat dissipating module of claim 1, wherein the LED road lamp further comprises a lower frame coupled to the external periphery of the light transmitting lens and sealed to the bottom of the partition board.

3. The assembling structure for LED road lamp and heat dissipating module of claim 1, wherein the partition board has a short pillar and a long pillar protruded downward from the bottom surface of the partition board and corresponding to a side of each through hole, and the frame body has a set of support stands, and each support stand forms a fixing hole at its tip for passing and fixing a fixing element onto the short and long pillars.

4. The assembling structure for LED road lamp and heat dissipating module of claim 3, wherein the long pillar has a stopping member extended from a side of the long pillar, and the stopping member is provided for contacting a heat receiving end of the heat pipe.

5. The assembling structure for LED road lamp and heat dissipating module of claim 1, wherein the heat receiving end of the heat pipe is substantially in a V-shape, and the heat discharging end is erected vertically from an end of the heat receiving end.

6. The assembling structure for LED road lamp and heat dissipating module of claim 1, wherein the heat dissipating body is comprised of a plurality of heat sinks stacked with an interval apart from each other, and each heat sink has a corresponding interconnecting hole to be coupled to the heat discharging end of the heat pipe.

7. The assembling structure for LED road lamp and heat dissipating module of claim 1, wherein the upper casing is comprised of a rectangular top panel and a plurality of surrounding panels extended downward from the periphery of the top panel, and each surrounding panel has a ventilation groove, and each ventilation groove forms a cover plate.

8. The assembling structure for LED road lamp and heat dissipating module of claim 7, wherein the surrounding panel has a penetrating hole disposed at the bottom of the surrounding panel, and a screw pillar disposed at the periphery of a top surface of the partition board and corresponding to the penetrating hole for passing a screw to connect and cover the upper casing onto the top of the partition board.

9. The assembling structure for LED road lamp and heat dissipating module of claim 1, further comprising a plurality of watertight washers installed between the external periphery of the heat pipe and the internal wall of the through hole of the partition board.

10. The assembling structure for LED road lamp and heat dissipating module of claim 9, wherein the watertight washer has a cylindrical pillar and a protruding ring expanded outward from a side of the cylindrical pillar, and the cylindrical pillar is disposed between the external periphery of the heat pipe and the internal wall of the protruding ring of the partition board, and the bottom of the protruding ring is attached onto the top surface of the partition board.