CN201992605U

CN201992605U - Heat sink for high-power LED (light-emitting diode) lamps

Info

Publication number: CN201992605U
Application number: CN2011200994038U
Authority: CN
Inventors: 谭学明; 蔡春波; 姚佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-07
Filing date: 2011-04-07
Publication date: 2011-09-28
Anticipated expiration: 2021-04-07

Abstract

A heat sink for high-power LED (light-emitting diode) lamps comprises a heat-dissipating support, wherein heat-conducting media are laid on the top surface of the heat-dissipating support, a PCB (printed circuit board) substrate is arranged on the heat-conducting media, and a plurality of LED lamps are arranged on the PCB substrate; air holes are respectively arranged on the PCB substrate between every two LED lamps, and run through the heat-conducting media and the heat-dissipating support; ventilating channels are longitudinally arranged on both sides of the top surface of the heat-dissipating support, the heat-dissipating support is provided with a plurality of fins, which are spaced from one another, and a mounting through hole is longitudinally arranged in the center of the heat-dissipating support. The heat sink solves the problem on how to dissipate the heat of high-power LED lamps which are widely applied and particularly centrally used.

Description

The heat abstractor of high-powered LED lamp

Technical field

The utility model relates to a kind of high-powered LED lamp, particularly a kind of heat abstractor of high-powered LED lamp.

Background technology

At present, traditional roads light, its light source adopt powerful mercury vapor lamp, high-pressure mercury lamp or other light sources mostly, and power consumption is big, illuminating effect is not good, maintenance cost is high, and contains harmful substance in the light source mostly, causes problems such as environmental pollution easily.In recent years, LED lamp development rapidly, luminous efficiency significantly improves, and advantage such as energy-conserving and environment-protective is arranged.Compare with traditional Projecting Lamp electric light source, led light source has that nonhazardous, no electromagnetic pollution and volume are little, power consumption is low, light efficiency is high, caloric value is lower and many-sided advantage such as long service life, can substitute conventional light source and be widely used in respectively using optical arena.But the high-powered LED lamp extensive use, particularly concentrating the basis of using is the heat dissipation problem that solves it.

Summary of the invention

In order to solve the problems of the technologies described above, the utility model provides a kind of heat abstractor of high-powered LED lamp of simple in structure, good heat dissipation effect.

The technical scheme that the utility model solves the problems of the technologies described above is: it comprises cooling stand, and the end face of cooling stand is laid heat-conducting medium, and the PCB substrate is set on the heat-conducting medium, and several LED lamps are set on the PCB substrate; PCB substrate between per two LED lamps is provided with air vent, and air vent runs through heat-conducting medium and cooling stand.

In order to realize products perfection, improve, improve combination property of the present utility model, further step is:

The both sides of described cooling stand end face vertically are provided with ventilation slot, and cooling stand is provided with several cooling fins, are provided with spacing between the fin, and the middle part of cooling stand vertically is provided with the installation through hole.

The technical program has solved the high-powered LED lamp extensive use, particularly concentrates the heat dissipation problem that uses.

The beneficial effect that the utility model is produced compared to existing technology:

1, the utility model can distribute the heat of high-powered LED lamp rapidly, thereby has reduced the speed of light decay, has prolonged service life.

2, the heat-conducting medium of LED lamp and cooling stand be connected to form direct heat conduction, the heat that many high-powered LED lamps produce directly is sent to cooling stand by heat exchange pattern, forms electric heating and separates, radiating rate is fast, good heat dissipation effect, heat radiation safety.

3. cooling stand, fin surface have been carried out waterproof, anticorrosion, and technical finesse such as anti-oxidant grade, its without water stained on its surface is not stained with dirt, has self-cleaning function.Prove through practical test, the utility model in the course of the work, temperature maintains 40 ℃ ± 3 ℃ scope all the time.

The utility model is adapted to the LED lamp heat radiation into all size, in particular for concentrating the high-powered LED lamp heat radiation of using.

Description of drawings

Fig. 1 is the utility model shaft side figure.

Fig. 2 is a front view of the present utility model.

Fig. 3 is the left view of Fig. 2.

Among the figure: 1, cooling stand, 2, the PCB substrate, 3, the LED lamp, 4, heat-conducting medium, 5, ventilation slot, 6, through hole is installed, 7, fin, 8, air vent.

The specific embodiment

By accompanying drawing Fig. 1, Fig. 2 and shown in Figure 3, a kind of heat abstractor of high-powered LED lamp, it comprises cooling stand 1, the end face of cooling stand 1 is laid heat-conducting medium 4, and PCB substrate 2 is set on the heat-conducting medium 4, and several LED lamps 3 are set on the PCB substrate 2; PCB substrate 2 between per two LED lamps 3 is provided with air vent 8, and air vent 8 runs through heat-conducting medium 4 and cooling stand 1.The both sides of cooling stand 1 end face vertically are provided with ventilation slot 5, and cooling stand 1 is provided with several cooling fins 7, are provided with spacing between the fin 7, and the middle part of cooling stand 1 vertically is provided with installs through hole 6.

In the utility model, cooling stand 1 and fin 7 adopt aluminium alloy to make, and aluminium alloy has in light weight, and heat conduction is fast, the characteristics of good heat dissipation.By the thickness of adjustment fin 7 and the spacing between the fin 7, the ventilation slot 5 that the both sides of cooling stand 1 end face vertically are provided with, the air vent 8 that PCB substrate 2, heat-conducting medium 4 and cooling stand are provided with, reach better heat radiating effect, to be applicable to different size LED lamp 3, be specially adapted to installing concentratedly and using of high-powered LED lamp 3.

In an embodiment, the thickness of fin 7 is 1mm-5 mm, distance between the fin 7 is 1mm-3 mm, by cooling stand 1 and fin 7 surfaces being carried out waterproof, anticorrosion, technical finesse such as anti-oxidant grade, make its without water stained on its surface, be not stained with dirt, have self-cleaning function, make the temperature of this device maintain 40 ℃ ± 3 ℃ scope all the time.

LED lamp 3 is made up of heat-conducting layer, led chip, insulated part, positive and negative conductive electrode and potting resin, the structure of this LED lamp 3 is: led chip is welded in the last section of heat-conducting layer 21, insulated part insulation led chip and heat-conducting layer, the middle part of insulated part is equipped with positive and negative conductive electrode, led chip is connected with positive and negative conductive electrode by lead, by potting resin heat-conducting layer, led chip, insulated part, positive and negative conductive electrode is packaged into LED lamp 3.

LED lamp 3 is connected with heat-conducting medium 4, heat-conducting medium 4 connects and composes the direct heat conduction with cooling stand 1, the heat that LED lamp 3 produces directly is sent to cooling stand 1 by heat exchange pattern, formation electric heating separates, radiating rate is fast, good heat dissipation effect, heat radiation safety, and the heat that produces during rapidly with 3 work of LED lamp distributes, thus thoroughly solve high-powered LED lamp a heat radiation difficult problem, LED lamp 3 is widely used, and has significantly saved the energy.

In the utility model, change the shape and the quantity of ventilation slot 5 and air vent 8, change the arrangement mode of LED lamp 3, all belong to protection domain of the present utility model.

Claims

1. the heat abstractor of a high-powered LED lamp, it is characterized in that: it comprises cooling stand (1), the end face of cooling stand (1) is laid heat-conducting medium (4), and PCB substrate (2) is set on the heat-conducting medium (4), and several LED lamps (3) are set on the PCB substrate (2); PCB substrate (2) between per two LED lamps (3) is provided with air vent (8), and air vent (8) runs through heat-conducting medium (4) and cooling stand (1).

2. the heat abstractor of a kind of high-powered LED lamp according to claim 1, the both sides that it is characterized in that described cooling stand (1) end face vertically are provided with ventilation slot (5), cooling stand (1) is provided with several cooling fins (7), fin is provided with spacing between (7), and the middle part of cooling stand (1) vertically is provided with installs through hole (6).