CN202338826U

CN202338826U - Convection type high-power LED (Light Emitting Diode) road lamp

Info

Publication number: CN202338826U
Application number: CN201120414409XU
Authority: CN
Inventors: 吕川
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-27
Filing date: 2011-10-27
Publication date: 2012-07-18
Anticipated expiration: 2021-10-27

Abstract

The utility model relates to a convection type high-power LED (Light Emitting Diode) road lamp, relating to the photoelectron and advanced material application field. The convection type high-power LED road lamp is mainly used in various lighting occasions. The convection type high-power LED road lamp comprises a radiating support, a lamp panel, a driving circuit, a control circuit and a power supply and is characterized in that the radiating support comprises a lamp panel fixing seat, a strengthening rib and a long-strip structure of radiating fins, a radiating fin is arranged on the lamp panel fixing seat in the horizontal direction and is of a thin platy shape, the upper part and the bottom part of the radiating fin are respectively provided with at least one notch, a ventilating slot is formed at each of the top and the bottom of the radiating support along the longitudinal direction of the radiating support by the notch, and the strengthening rib is connected with each radiating fin. The convection type high-power LED road lamp can comprise one or more than one radiating support, and is provided with the radiating support with good radiating property and an uninsulated thermal resistance layer between an LED lamp component and a lamp installation panel.

Description

The convection type high-power LED street lamp

Technical field

The utility model relates to photoelectron and new material application, especially relates to a kind of convection type high-power LED street lamp.Be mainly used in various illumination occasions.

Background technology

The common LED street lamp all just adopts die casting aluminium section bar and common aluminium radiator fin technology; The vent passages of hollow before and after mechanism rack itself does not have; Air can't form the easy on and off convection current; Therefore such framework can produce the hot-air eddy current, can't be rapidly with taking away near the heat of LED pedestal, and the LED heat dissipating state receives the restriction of very big degree.If the form that adopts fan that hot-air is blown off, but being not suitable for using high-power LED street lamp out of doors, its stability and life-span certainly will receive serious challenge, are a kind of worthless methods.

In addition; The welding method of LED on aluminium base of common LED street lamp; Be LED directly is mounted on upward directly welding of aluminium base PCB, the insulating barrier that exists between LED pedestal and aluminium flake and the fuselage aluminium radiator fin, its thermal resistance all is very big usually; Therefore this assembly technology and structure also are the heat radiations that is unfavorable for LED itself, thereby the temperature that can badly influence LED causes the life-span of LED to descend.

And the lamp plate area of common LED street lamp is very big, on the common aluminium base substrate tens even up to a hundred LED is arranged all, produces aluminium type radiator therefore for like this design and brings difficulty; Require its mounting plane very smooth; Precision is very high, in common production in enormous quantities, is difficult to the smoothness and the angularity of control metal surface, has increased production cost; And adopt a plurality of screws that aluminium base is fixed on the mode on the radiator plane; In fact we find that this mode extremely is easy to generate between aluminium base and the radiator of the LED that mounts each point and can not fits fully, even brush heat-conducting silicone grease in the aluminium base bottom surface that LED is installed, and in the production process of reality; We still find the heat-conducting silicone grease skewness; A plurality of area of absence occur, can't really realize the complete fit-state between aluminium base and the radiator, can not fit fully just means that thermal resistance is big, heat conduction is bad.

Summary of the invention

To the shortcoming of prior art, the purpose of the utility model is to provide a kind of convection type high-power LED street lamp that has the heat radiation frame and the LED lamp components and parts of excellent heat dispersion performance and naked thermoresistance layer between the lamp plate is installed.

The utility model solves the technical scheme that its technical problem adopted: include cooling stand, lamp plate, drive circuit, control circuit and power supply; It is characterized in that: lamp plate is the thin plate list structure; Several LED lamp seat pads are arranged on the lamp plate; Be welded with the LED lamp seat on the LED lamp seat pad, be welded with the LED lamp on the LED lamp seat, lamp plate is mounted on the lamp plate holder of cooling stand; It is characterized in that: cooling stand is the strip structure that includes lamp plate holder, reinforcement, fin; Laterally have fin, the fin of lamp plate holder are laminar, and at least one recess is respectively arranged at its top and bottom, and these recesses make cooling stand upper and lower along its vertical ventilation slot that forms; Reinforcement connects each sheet fin.One or above cooling stand can be arranged in such device.

Recess on the fin formed ventilation slot on cooling stand makes cooling stand keep good ventilation, forms the cross-ventilation state, and the surface is difficult for assembling heat; The processing mode that cooling stand can adopt backing-off cutting and aluminium to stretch is easily produced in batches efficiently.

The beneficial effect of the utility model is: have good performance of heat dissipation, possess convection current, conduction and three kinds of heat exchange patterns heat radiations of radiation, LED lamp components and parts with naked thermoresistance layer between the lamp plate is installed, be beneficial to heat and conduct, more easily heat " biography " walked.Fin vertically forms ventilation slot along cooling stand and does not have the hot gas vortex phenomenon and produce in the lamp plate holder is upper and lower, can form good cross-ventilation, can make heat energy with maximum area towards space radiation.And the air of convection current, can heat " be blown " from blade.Great radiating effect is arranged, prolong the service life of light fixture greatly.

Description of drawings

Below in conjunction with accompanying drawing the utility model is done further to describe.

Fig. 1 is the cooling stand front view of the utility model.

Fig. 2 is the rearview of Fig. 1.

Fig. 3 is the A-A cutaway view of Fig. 1.

Fig. 4 is the lamp panel structure sketch map of the utility model.

Fig. 5 is the stereogram of the utility model.

Fig. 6 is right-hand part heat sink and a reinforcement sketch map among the utility model embodiment.

Fig. 7 is the B-B cutaway view of Fig. 6.

Among the figure: 1 is that heat sink, 2 is that reinforcement, 3 is that lamp plate holder, 4 is that reinforcement, 5 is that lamp plate, 6 is that LED pedestal pad, 7,8,9 is that ventilation slot, 11,12,13 is a recess.

The specific embodiment

Referring to accompanying drawing; The utility model includes cooling stand, lamp plate, drive circuit, control circuit and power supply; It is characterized in that: lamp plate 5 is thin plate list structures, and several LED lamp seat pads 6 are arranged on the lamp plate 5, is welded with the LED lamp seat on the LED lamp seat pad 6; Be welded with the LED lamp on the LED lamp seat; Lamp plate 5 is mounted on the lamp plate holder 3 of cooling stand, it is characterized in that: cooling stand is the strip structure that includes lamp plate holder 3,

reinforcement

2,4, fin 1, lamp plate holder 3 fin 1, fin 1 are laterally arranged is laminar; At least one

recess

11,12 or 13 is respectively arranged at its top and bottom, and these recesses make cooling stand upper and lower along its

vertical ventilation slot

7,8,9 that forms;

Reinforcement

2,4 connects each sheet fin 1.

In the embodiment of the utility model, in order to make naked thermoresistance layer between maintenance of LED pedestal and the lamp plate 5; With the insulating barrier mill off of the pedestal pad 6 of lamp plate 5, carry out turmeric or copper facing or gold-plated or tin spray process and handle, make its surface that one deck turmeric or copper facing or gold-plated or spray tin layer arranged, make LED can not have seam welding with aluminium sheet very easily.

In the embodiment of the utility model, cooling stand also is equipped with specific ahrens prism lens, can realize specific hot spot optical effect;

In the embodiment of the utility model, whole device is made up of a plurality of modules, and independently interface and good exchangeability are all arranged between each module respectively, and each module can be replaced installation each other.

In the embodiment of the utility model, but also expand repeated charge stand-by power supply function is provided, band discharges and recharges the element circuit of a complete set of defencive function, uses as the road emergency light.

The embodiment of the utility model can guarantee that the LED base-plate temp remains in 50 ℃ under normal temperature (30 ℃); The temperature of LED PN junction all the time can be above 80 ℃; Under the mated condition that the LED quality is guaranteed, can make the light rate degree of LED in long-time use be not more than 10%.Can realize that 1 kilogram of aluminium can bear the LED dissipated power of 100W, make the weight of LED road lamp cap have only the half the of other common die casting aluminium lamp holder members like this.

Fig. 6, Fig. 7 are heat sink and the reinforcing rib structure sketch mapes of an embodiment of the utility model; In this embodiment; Heat sink is the structure of left and right halves; On the former material of cuboid, adopt the processing mode of backing-off cutting and stretching to process, through the lamp plate holder that it connection is as a whole.

Claims

1. convection type high-power LED street lamp; Include cooling stand, lamp plate, drive circuit, control circuit and power supply; It is characterized in that: lamp plate (5) is the thin plate list structure, and several LED lamp seat pads (6) are arranged on the lamp plate (5), is welded with the LED lamp seat on the LED lamp seat pad (6); Be welded with the LED lamp on the LED lamp seat; Lamp plate (5) is mounted on the lamp plate holder (3) of cooling stand, it is characterized in that: cooling stand is the strip structure that includes lamp plate holder (3), reinforcement (2,4), fin (1), lamp plate holder (3) fin (1), fin (1) are laterally arranged is laminar; At least one recess (11,12 or 13) is respectively arranged at its top and bottom, and these recesses make cooling stand upper and lower along its vertical ventilation slot (7,8,9) that forms; Reinforcement (2,4) connects each sheet fin (1).

2. according to the convection type high-power LED street lamp of claim 1, it is characterized in that: there are one deck turmeric or copper facing or gold-plated or spray tin layer in pedestal pad (6) surface of lamp plate (5).

3. according to the convection type high-power LED street lamp of claim 1, it is characterized in that:, heat sink is the structure of left and right two halves, and is through the lamp plate holder that it connection is as a whole.