CN201836780U

CN201836780U - Air duct radiating large power LED road lamp

Info

Publication number: CN201836780U
Application number: CN2010205596070U
Authority: CN
Inventors: 罗业富
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-13
Filing date: 2010-10-13
Publication date: 2011-05-18
Anticipated expiration: 2020-10-13

Abstract

An air duct radiating large power LED road lamp consists of a lamp post, an upper support arm, a lower support arm and lamps and lanterns, wherein the lamp post, the upper support arm and the lower support arm are hollow; the lamp post has an upper isolation channel and a lower isolation channel; the upper support arm and the lower support arm also have an upper isolation channel and a lower isolation channel; the lamps and lanterns are provided with a left isolation channel and a right isolation channel, the left isolation channel is internally provided with a heat conduction substrate which is communicated with the lower support arm and the lower lamp post, and the right channel is internally provided with a heat conductor which is communicated with the upper support arm and the upper lamp post; a flow guide hole is arranged at the joint of the upper and the lower lamp posts; a waterproof air inlet is arranged at the lower part of the lamp post, and the channel above the air inlet is internally provided with an air filter; and the top end of the lamp post is provided with a rain shading air outlet. In the utility model, the lamp post, the support arms and the lamps and lanterns are respectively separated so as to form a unique channel for natural air to flow from bottom to top; when heat is generated by the large power LED luminous chip, air is heated and rises, cool air flows in from the air inlet and reaches the air outlet through the unique air inlet and outlet channel, over and over again, the large power LED luminous chip is cooled continuously.

Description

The air channel type heat elimination high-power LED street lamp

Technical field

The utility model relates to a kind of high-power LED street lamp, particularly a kind of air channel type heat elimination high-power LED street lamp that utilizes natural wind to the cooling of great power LED luminescence chip.

Background technology

The main emphasis of traditional integrated form high-power LED street lamp design and is paid close attention to less to heat conduction, the heat radiation of light fixture on the lumen number of LED.The heat radiation of LED street lamp is generally adopted the heat-conducting plate heat radiation except outer shell heat radiation.Said heat-conducting plate is the thick copper coin of a slice 5mm, the samming thermal source; Also have finned to dispel the heat, but weight is too big, has certain danger, may meet accident when particularly running into typhoon and earthquake.Utilize Natural Heat Convection in addition, install fan forced heat radiation, heat pipe and heat pipe circuit additional, add silicone grease heat radiation or the like.Forced heat radiation mode complexity, reliability is low, heat pipe and heat pipe circuit heat radiation cost height.In addition, street lamp is installed in road both sides and outdoor, and dust covers on the shell will reduce radiating effect greatly, shortens the service life of integrated form high-power LED street lamp.

Summary of the invention

In view of the deficiency that traditional integrated form high-power LED street lamp exists on heat dissipation design, the purpose of this utility model is to make full use of natural wind, does not count lower, the good heat dissipation effect of a kind of cost, can prolong the air-cooled street lamp in high-power LED light source life-span greatly.

The utility model is a kind of air channel type heat elimination high-power LED street lamp, comprise lamp stand, support arm and light fixture, it is hollow to it is characterized in that lamp stand and arm are, lamp stand is divided into channel isolation up and down, support arm is made of two support arms up and down, form channel isolation up and down, light fixture is divided into left and right sides channel isolation, is provided with heat-conducting substrate in the left passage, is communicated with lower branch arm and following lamp stand, be provided with heat transfer device in the right passage, be communicated with upper branch arm and last lamp stand, the bottom of lamp stand junction has pod apertures up and down, and the waterproof air inlet is arranged at the lamp stand bottom, in the passage of air inlet top air filter is set, the lamp stand top has the rain of screening air outlet to be communicated with upper branch arm.

Operation principle of the present utility model is: utilize lamp stand, support arm, the light fixture of isolating respectively, form unique passage that natural wind flows from bottom to top.After the great power LED luminescence chip produces heat, air is heated and upwards flows, flow to the air outlet on lamp stand top through upper branch arm from the light fixture right side, extraneous cold air then flows into lamp stand down by the air inlet of lamp stand bottom, cold air after air filter filters is upwards filled the hot-air that flows away, flow into left light fixture passage through lower branch arm, again through right light fixture passage and upper branch arm, flow through heat-conducting substrate and heat transfer device in the light fixture, flow to the air outlet on lamp stand top, take away the heat that the great power LED luminescence chip produces.So move in circles, take away the heat that the LED luminescence chip produces incessantly, reach purpose to great power LED luminescence chip cooling.

Description of drawings

Fig. 1 is the utility model air channel type heat elimination high-power LED street lamp assembly structure schematic diagram.

The specific embodiment

Embodiment 1

As shown in the figure, the utility model air channel type heat elimination high-power LED street lamp comprises lamp stand, goes up lower branch arm and light fixture, and light fixture is made of shell 1, led chip 2, heat-conducting substrate 3, heat transfer device 4 and safety glass lampshade 5.Light fixture divides left and right sides passage 6,7, is provided with heat-conducting substrate 3 in the left passage 6, is provided with heat transfer device 4 in the right passage 7.Lamp stand and arm are hollow, and lamp stand is isolated into two parts 8,9 up and down, forms the last lower channel that is isolated from each other; Last lower branch arm 10,11 also forms the last lower channel that is isolated from each other; The bottom of lamp stand 8,9 junctions has pod apertures 12 up and down, and following lamp stand 9 has shutter waterproof air inlet 13 apart from 1 meter, ground, in the passage of air inlet top air filter 14 is set, and there is the rain of screening air outlet 15 on the lamp stand top.Air inlet 13 is an air intake passage with following lamp stand 9, lower branch arm 11 and light fixture left channel 6; Light fixture right channel 7 is communicated with upper branch arm 10, last lamp stand 8 and air outlet 15, is the air-out passage.

After street lamp is lighted, heat transferred heat-conducting substrate and heat transfer device that the great power LED luminescence chip produces.Heat transfer device ambient air expanded by heating upwards flows, and to the light fixture right side, passes through upper branch arm and last lamp stand from the light fixture left side again, flows out from air outlet.The formation negative pressure because the air-flow in the lamp stand moves upward, cold air is inhaled into air inlet, by following lamp stand, lower branch arm, left light fixture passage, right light fixture passage, upper branch arm and last lamp stand, flows out from air outlet.So go round and begin again, the rising of being heated of air in the light fixture, cold air flows into from the lamp stand bottom, flows along unique access way, the heat that led chip produces is just taken away by flow air continuously, thereby reaches the purpose of utilizing natural wind to cool to led chip.

The discharge orifice that convince by patient analysis the bottom of lamp stand junction is to meet the condensed water of cold formation in order to discharge in heat radiation process hot-air up and down.

Claims

1. air channel type heat elimination high-power LED street lamp, comprise lamp stand, support arm and light fixture, it is hollow to it is characterized in that lamp stand and arm are, lamp stand is divided into channel isolation up and down, support arm is made of two support arms up and down, form channel isolation up and down, light fixture is divided into left and right sides channel isolation, is provided with heat-conducting substrate in the left passage, is communicated with lower branch arm and following lamp stand, be provided with heat transfer device in the right passage, be communicated with upper branch arm and last lamp stand, the bottom of lamp stand junction has pod apertures up and down, and the waterproof air inlet is arranged at the lamp stand bottom, in the passage of air inlet top air filter is set, the lamp stand top has the rain of screening air outlet to be communicated with upper branch arm.

2. air channel type heat elimination high-power LED street lamp according to claim 1 is characterized in that the waterproof air inlet is the venetian blind type air inlet, 1 meter apart from ground of air inlet.