CN202835286U

CN202835286U - Light-emitting diode (LED) lamp radiator

Info

Publication number: CN202835286U
Application number: CN2012204348091U
Authority: CN
Inventors: 刘桂明
Original assignee: ELEKO INDUSTRIES ZHONGSHAN Co Ltd
Current assignee: ELEKO INDUSTRIES ZHONGSHAN Co Ltd
Priority date: 2012-08-29
Filing date: 2012-08-29
Publication date: 2013-03-27
Anticipated expiration: 2022-08-29

Abstract

The utility model relates to a light-emitting diode (LED) lamp radiator. The LED lamp radiator is characterized by comprising a base board (1), fins (2) are arranged on the base board (1), the fins (2) are multiple in number, and a gap (3) is arranged between every two adjacent fins (2). The fins (2) are distributed in a linear array mode, and the width A of the gap (3) is 6mm-9mm. The LED lamp radiator solves the technical problem in the prior art, and the LED lamp radiator arranged in the linear array mode is provided, and the LED lamp radiator has the advantages of being simple in structure, good in radiating effect, convenient to machine and manufacture, and capable of effectively solving a radiating problem of large power LED lamps.

Description

A kind of LED lamp radiator

[technical field]

The utility model relates to a kind of LED lamp radiator.

[background technology]

Light emitting diode (LED) is a kind of novel green light source of energy-conserving and environment-protective, with respect to incandescent lamp, the traditional lighting such as fluorescent lamp or high-pressure mercury lamp lamp, but LED saves energy 50～70%, save cable expense 70%, in the world LED has been carried out widely research and extension application work, wherein power is being indicated less than the LED of 1W, extensive use is obtained in the fields such as demonstration and backlight, LED is a photoelectric device, the theoretical life-span can reach 100,000 hour, in the course of work approximately 15% electric energy convert luminous energy to, all the other electric energy are energy transform into heat energy nearly all, for the power that is applied to throw light on for for several watts to hundreds of watts the great power LED, if do not add cooling measure, the led chip junction temperature can rise rapidly, cause luminance and the life-span of LED sharply to be reduced, particularly when junction temperature rises above maximum allowable temperature temperature (being generally 125 ℃), LED can lose efficacy because of overheated, and the technical scheme in order to solve great power LED cooling that occurs at present mainly contains three kinds: the one, and adopt heat pipe and real core radiating fin to dispel the heat; The 2nd, the radiator structure that heat abstractor and lamp housing link into an integrated entity, the operation principle of above-mentioned two kinds of radiators all is by heat pipe the heat that led chip produces to be derived, the heat of deriving passes to real core fin by heat pipe again, then pass through real core fin with heat dissipation, even real core fin adopts the red copper material, its thermal conductivity factor also only is 398W/mK, low 2 orders of magnitude of thermal conductivity factor than heat pipe, because the thermal conductivity factor of real core fin is far below the thermal conductivity factor of heat pipe, thereby the temperature difference on the real core fin is larger, be difficult to that the heat that led chip produces is derived liquid fast and be difficult to heat is dissipated fast, thereby above-mentioned two kinds of radiators are difficult to satisfy the heat radiation requirement of great power LED under natural convection; The 3rd, the forced convertion heat abstractor that increases fan dispels the heat, the radiator that adds fan has not only increased power consumption and has also reduced system reliability, can't realize the energy-conservation and safety of LED, the long-life target, in sum, present employed LED heat dissipation technology scheme all exists number of drawbacks and the deficiencies such as radiating effect is poor, energy consumption is higher, poor reliability in various degree, thereby has still limited largely the extensive use of high-powered LED lamp.

[utility model content]

Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of LED lamp radiator that provides a kind of array of fins to distribute, its simple in structure, good heat dissipation effect, processing and fabricating is convenient, can effectively solve the heat radiation difficult problem of high-powered LED lamp.

For achieving the above object, the utility model has adopted following technical proposals:

A kind of LED lamp radiator comprises substrate, is provided with fin at described substrate, and described fin is multi-disc, has the gap between adjacent two described fins, and described fin is linear array and distributes, and the width A in described gap is 6～9mm.

Fin is perpendicular to described substrate as mentioned above.

Fin is by forming near the thick fin at described substrate edge and the thin fin that is arranged between the described thick fin as mentioned above.

Thin fin is comprised of fin root, fin main body, fin top near described substrate as mentioned above, and described fin thickness is reduced to described fin top gradually by described fin root.

The thickness of fin root is 3mm as mentioned above, and the thickness of described fin top is 1mm.

Fin has chamfering as mentioned above.

Be provided with dovetail groove in gap as mentioned above near described substrate one side, described dovetail groove is used for installing heat pipe.

The beneficial effects of the utility model are:

1, the array of fins among the utility model distributes, and strictly calculate through aerodynamics in the thickness of fin and the gap between the fin, and the radiator thermal conductivity factor that designs according to result of calculation is high, good heat dissipation effect.

2, the fin at the close substrate edge among the utility model thickening can effectively prevent the fin distortion, is convenient to the staff radiator is installed or removed.

3, the fin among the utility model has chamfering, can effectively prevent the corner needle-holding hand of fin, and image is attractive in appearance.

4, the design of the dovetail groove among the utility model is convenient to and the heat pipe assembling, further strengthens the radiating effect of radiator.

[description of drawings]

Fig. 1 is three-dimensional view of the present utility model;

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

Fig. 3 is top view of the present utility model;

Fig. 4 be the thick fin of the utility model front view;

Fig. 5 is the explosive view that the utility model cooperates with the LED lamp.

[specific embodiment]

Below in conjunction with accompanying drawing the utility model is done further detailed description.

As shown in Figures 1 to 4, a kind of LED lamp radiator, comprise substrate 1, be provided with fin 2 at described substrate 1, described fin 2 is multi-disc, has gap 3 between adjacent two described fins 2, described fin 2 is linear array and distributes, and the width A in described gap 3 is 6～9mm, and strictly calculate through aerodynamics in the thickness of fin and the gap between the fin, the radiator thermal conductivity factor that designs according to result of calculation is high, good heat dissipation effect.

As shown in Figure 2, described fin 2 is convenient to Air Flow perpendicular to described substrate 1, is convenient to heat radiation.

As shown in Figure 2, described fin 2 is by forming near the thick fin 21 at described substrate 1 edge and the thin fin 22 that is arranged between the described thick fin 21, fin thickening near the substrate edge can effectively prevent the fin distortion, is convenient to the staff radiator is installed or removed.

As shown in Figure 2, described thin fin 22 is comprised of fin root 221, fin main body 222, the fin top 223 near described substrate 1, described fin 2 thickness are reduced to described fin top 223 gradually by described fin root 221, heat radiation evenly, be convenient to heat is transmitted out rapidly, as optimal way of the present utility model, the thickness of described fin root 221 is 3mm, and the thickness of described fin top 223 is 1mm.

As shown in Figure 4, described fin 2 has chamfering 21, can effectively prevent the corner needle-holding hand of fin, and image is attractive in appearance.

As shown in Figure 2, be provided with dovetail groove 4 in described gap 3 near described substrate 1 one sides, be convenient to and the heat pipe assembling, further strengthen the radiating effect of radiator.

As shown in Figure 5, the LED lamp comprises pcb board 6, be arranged at the LED lamp 7 on the pcb board 6, pcb board 6 fits together by the substrate 1 of heat-conducting silicone grease sheet 5 with radiator, LED lamp 7, pcb board 6, heat-conducting silicone grease sheet 5 is fixed on the substrate 1 by screw 8, be provided with power interface 61 at pcb board 6 two ends, after the energising, 7 conductings of LED lamp are luminous and produce heat, the heat that produces passes to radiator base plate 1 by pcb board 6 and heat-conducting silicone grease 5, radiator begins heat radiation, thereby pcb board 6 is remained in the desired temperature range, guarantees that LED lamp 7 can work.

The utility model LED radiator adopts fine aluminium AL6063 material to make, thermal conductivity factor reaches 201W (m*k), cutting ability is better, processing technology adopts stretching die, the stretching aluminium is lightweight, fire resistance is good, good plasticity and processing characteristics, surface treatment properties is good, radioresistance, heat-conductivity conducting is good, comparatively convenient compared with die casting aluminium by using this stretching aluminium to make radiator, with low cost, thermal design is comparatively free, make simple, more even better than other in cost control and production, the LED radiator adopts anodized, reaches wear-resisting, corrosion-resistant, sun-proof, the effect of heat radiation etc.

Claims

1. LED lamp radiator, it is characterized in that: comprise substrate (1), be provided with fin (2) at described substrate (1), described fin (2) is multi-disc, has gap (3) between adjacent two described fins (2), described fin (2) is linear array and distributes, and the width A of described gap (3) is 6～9mm.

2. a kind of LED lamp radiator according to claim 1, it is characterized in that: described fin (2) is perpendicular to described substrate (1).

3. a kind of LED lamp radiator according to claim 2 is characterized in that: described fin (2) is by forming near the thick fin (21) at described substrate (1) edge and the thin fin (22) that is arranged between the described thick fin (21).

4. a kind of LED lamp radiator according to claim 3, it is characterized in that: described thin fin (22) is comprised of fin root (221), fin main body (222), the fin top (223) near described substrate (1), and described fin (2) thickness is reduced to described fin top (223) gradually by described fin root (221).

5. a kind of LED lamp radiator according to claim 3, it is characterized in that: the thickness of described fin root (221) is 3mm, the thickness of described fin top (223) is 1mm.

6. a kind of LED lamp radiator according to claim 2, it is characterized in that: described fin (2) has chamfering (21).

7. a kind of LED lamp radiator according to claim 1 is characterized in that: be provided with dovetail groove (4) in described gap (3) near described substrate (1) one side, described dovetail groove (4) is used for installing heat pipe.