CN102444847A

CN102444847A - Air passage type cooling high-power LED street lamp

Info

Publication number: CN102444847A
Application number: CN2010105056575A
Authority: CN
Inventors: 罗业富
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-13
Filing date: 2010-10-13
Publication date: 2012-05-09

Abstract

An air passage type cooling high-power LED street lamp comprises a lamp pole, an upper support arm, a lower support arm and a lighting fitting, wherein, the lamp pole is a passage which is isolated up and down, the upper and lower support arms form a passage which is isolated up and down, and the lighting fitting is divided into a left passage and a right passage which are isolated; a heat conducting baseplate is arranged in the left passage and communicated with the lower support arm and the lower lamp pole; a heat conductor is arranged in the right passage and communicated with the upper support arm and the upper lamp pole; a flow guide hole is formed at the joint of the upper and lower lamp poles; a waterproof air inlet is formed at the lower part of the lamp pole, and an air filter is arranged in the passage above the air inlet; and a rain-shielding air outlet is formed at the top end of the lamp pole. In the invention, the lamp pole, the support arms and the lighting fitting are isolated so as to form a sole passage for the air to flow from the bottom up; and the air is heated up by the heat generated by the high-power LED luminescence chip, so the cold air enters from the air inlet and reaches the air outlet through the sole air in-out passage. As the cycle repeats, the high-power LED luminescence chip is cooled uninterruptedly.

Description

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

Technical field

The present invention 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, possibly 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.The forced heat radiation mode is complicated, and reliability is low, and heat pipe and heat pipe circuit heat radiation cost are high.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

Deficiency in view of traditional integrated form high-power LED street lamp exists on heat dissipation design the objective of the invention is to make full use of natural wind, designs 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 present invention is a kind of air channel type heat elimination high-power LED street lamp, comprises lamp stand, support arm and light fixture, and it is hollow to it is characterized in that lamp stand and arm are; Lamp stand is divided into up and down channel isolation, and support arm is made up of two support arms up and down, forms 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; The waterproof air inlet is arranged at the lamp stand bottom, in the passage of air inlet top air filter is set, and the lamp stand top has the rain of screening air outlet to be communicated with upper branch arm.

Operation principle of the present invention 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, and flows to the air outlet on lamp stand top through upper branch arm from the light fixture right side, and 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,, flow through heat-conducting substrate and heat transfer device in the light fixture again through right light fixture passage and upper branch arm; 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 an air channel type heat elimination high-power LED street lamp assembly structure sketch map of the present invention.

The specific embodiment

Embodiment 1

As shown in the figure, air channel type heat elimination high-power LED street lamp of the present invention comprises lamp stand, goes up lower branch arm and light fixture, and light fixture is made up 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 and following lamp stand 9, lower branch arm 11 and light fixture left channel 6 are air intake passage; 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, through 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. an air channel type heat elimination high-power LED street lamp comprises lamp stand, support arm and light fixture, and it is hollow to it is characterized in that lamp stand and arm are; Lamp stand is divided into up and down channel isolation, and support arm is made up of two support arms up and down, forms 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; The waterproof air inlet is arranged at the lamp stand bottom, in the passage of air inlet top air filter is set, and 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.