CN201599761U

CN201599761U - Improved LED street lamp radiator

Info

Publication number: CN201599761U
Application number: CN200920296844XU
Authority: CN
Inventors: 柯智慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-31
Filing date: 2009-12-31
Publication date: 2010-10-06
Anticipated expiration: 2019-12-31

Abstract

The utility model discloses an efficient LED street lamp radiator with high heat dissipation speed and multidirectional convection current. The LED street lamp radiator comprises an aluminum baseplate used for mounting an LED circuit board and fixed on a heat dissipation component in a clingy manner; the heat dissipation component comprises fins and layer partition boards, and every adjacent single fin and single layer partition board are stacked; the area of each layer partition board is much less than that of each fin; the upper end part of each fin adopts an irregular convex-concave face structure; and more than one venthole provided with a flanged lip or half of the flanged lip is formed at the upper end part of each fin. The scheme of the LED street lamp radiator improves the heat dissipation speed greatly, ensures better radiating effect, overcomes the disadvantages in the prior art, and is especially suitable for being used in coordination with a high-power LED street lamp.

Description

Improved LED street lamp heat radiator

Technical field

The utility model relates to a kind of LED street lamp heat radiator, especially a kind of enhancing efficient and radiator that can multidirectional convection current.

Background technology

At present, power type white light LED can only be converted into luminous energy with the electric energy of about 15%-25%, and remaining energy almost all changes into heat energy.Along with the increase of LED power, quantity of heat production increases, and bad if heat dissipation problem solves, heat concentrates in the small-sized chip and can't discharge fast, makes that the chip internal temperature is more and more higher.The too high meeting of chip temperature brings many problems, as quickening device aging, accelerates the speed of LED light decay, reduction of service life, even also can cause chip to burn.Influence one of the light decay of high-power LED street lamp and the key factor in service life and come down to heat dissipation problem; How effectively to solve heat radiation, become the LED street lamp and promote the problem that presses for solution most that is faced.

For the LED street lamp, the quality of radiator directly influences light decay of lamp pearl and its service life, and solution heat dissipation problem as much as possible could suppress light decay speed, prolongs the street lamp life-span, the effect of performance LED road lamp energy-saving illumination.Because LED street lamp condition of work is limit, radiating mode can only adopt the mode of free convection.The radiating mode of prior art LED street lamp all be by aluminium alloy lamp housing folk prescription to the convection current natural heat dissipation, and die casting heat radiation aluminium and draw the aluminium natural heat dissipation because the limitation of die casting formula and squash type processing technology, radiator inside can't multidirectional convection current circulation.And the coefficient of heat transfer that the quality of the permeability of the characteristic of the heat generation characteristic of LED street lamp itself and natural heat dissipation and aluminum used matter causes is also corresponding different, has slow, the inefficient technical problem of radiating rate.

The utility model content

At the problems referred to above, the utility model aims to provide the improved LED street lamp heat radiator that a kind of radiating rate is slow, efficient is high.

For realizing this technical purpose, a kind of improved LED street lamp heat radiator of the present utility model, comprise the aluminium base that the LED wiring board is installed, described aluminium base is close to and is fixed on the radiating subassembly, described radiating subassembly is made of fin tired the folding adjacent in twos with layer dividing plate, the area of layer dividing plate is much smaller than the area of fin, and the position, upper end of described fin is irregular male and female face structure, has the passage of more than one flanged pin or half of flange.

In order to strengthen radiating effect, trickle irregular convex-concave is arranged on the fin.

As fixing facility, the bolting by penetrating between fin and the layer dividing plate.

For the ease of assembling, the inside of radiating subassembly is provided with vertical plug-in unit, and aluminium base adopts the tapping structure to be fixed in radiating subassembly.

For further improving radiating efficiency, aluminium base, layer dividing plate, fin are aluminium matter alloy material and are processed into.

As concrete further improvement, the thickness of described layer dividing plate is 4mm, is the spacing of 4mm between the adjacent in twos fin.Spacing also can be stipulated again according to the heat radiation requirement.

This programme reasonable in design, good heat dissipation effect, because radiating fin, layer dividing plate and aluminium base are aluminium matter alloy material and process, the high thermal conductivity coefficient of this material helps heat conduction, and a large amount of multidirectional passages is arranged on the radiator, helps the convection current of air top to bottom, left and right, front and rear; Wherein tired the stacking of fin and layer dividing plate forms the full communication between the higher and lower levels hole; Fin and fin pitch form air left and right sides convection current; In this programme, irregular male and female face has been made by the lathe punching press in the part of parts of traditional radiating fin, area of dissipation and fluid turbulence intensity have been increased greatly, simultaneously traditional fin has been carried out the surface improvements processing, make it rough surface, coarse fin can cause local turbulence intensity to increase, the original thermosphere fluid layer in more effective destruction radiating fin surface, make the fin matrix quicken discharge inner heat, more help about the air, left and right sides convection current; The passage of flanged pin or half of flange on the fin makes the irregular movement aggravation of radiator inner fluid particle, and turbulence intensity strengthens, and convection velocity is accelerated before and after the air.Strengthen heat-sinking capability more than general passage design, accelerated the speed of air front and back convection current; The realization top to bottom, left and right, front and rear connect, and have increased the frequency of heat exchange, and the heat in lamp interior space is exchanged with outside air faster, have realized the maximum delivered of heat, have solved the low technical problem of prior art radiating efficiency better.The utility model is fit to and the supporting use of high-power LED street lamp.

Description of drawings

Fig. 1 is a side view of the present utility model.

Fig. 2 is a stereogram of the present utility model.

Fig. 3 is a schematic top plan view of the present utility model.

The specific embodiment

In conjunction with drawing, the utility model is described in further details by preferred embodiment.

This preferred embodiment comprises aluminium base 1, layer dividing plate 2, fin 3.Substrate 1 is an aluminium base, and its effect is that the heat that LED street lamp chip produces is passed to radiator; Layer dividing plate 2 and fin 3 are arranged on the radiator, on the fin 3 air vent is arranged, adjacent fin spacing 4mm; Bottom layer dividing plate 2 thickness are 4mm, high 15mm; Layer dividing plate 2 differs with fin 3 length, and layer dividing plate 2 and the slit that fin 3 forms have formed convection current up and down after tired the stacking, and tired the stacking of layer dividing plate and fin increased area of dissipation.Inner vertically plug-in unit 4 helps the LED wiring board being fixed on the aluminium base at the fixing aluminium base of vertical direction boring, tapping again, aluminium base is closely contacted, to reach radiating effect efficiently with radiator.

The utility model reasonable in design, good heat dissipation effect, because radiating fin, layer dividing plate and aluminium base are aluminium matter alloy material and process, the high thermal conductivity coefficient of this material helps heat conduction, and a large amount of multidirectional passages is arranged on the radiator, helps the convection current of air top to bottom, left and right, front and rear; Wherein tired the stacking of fin and layer dividing plate forms the full communication between the higher and lower levels hole; The position, upper end of fin is provided with irregular male and female face structure, has increased area of dissipation and turbulence intensity, is more conducive to heat radiation.The passage of flanged pin or half of flange on the fin forms air front and back convection current; The spacing of fin and fin 4mm forms air left and right sides convection current 5; The realization top to bottom, left and right, front and rear connect, and have increased the frequency of heat exchange, and the heat in lamp interior space is exchanged with outside air faster, have realized the maximum delivered of heat, have solved the low technical problem of prior art radiating efficiency.The utility model is fit to and the supporting use of high-power LED street lamp.

The above; it only is preferred embodiment of the present utility model; not in order to restriction the utility model, every foundation technical spirit of the present utility model to any trickle modification that above embodiment did, be equal to and replace and improve, all should be included within the protection domain of technical solutions of the utility model.

Claims

1. improved LED street lamp heat radiator, comprise the aluminium base that the LED wiring board is installed, it is characterized in that, described aluminium base (1) is close to and is fixed on the radiating subassembly, described radiating subassembly is by fin (3) the tired folded formation adjacent in twos with layer dividing plate (2), the area of layer dividing plate is much smaller than the area of fin, and the position, upper end of described fin is irregular male and female face structure, has the passage (5) of more than one flanged pin or half of flange.

2. radiator according to claim 1 is characterized in that, trickle irregular convex-concave is arranged on the described fin.

3. radiator according to claim 1 and 2 is characterized in that, the bolting by penetrating between fin and the layer dividing plate.

4. radiator according to claim 1 and 2 is characterized in that, the inside of described radiating subassembly is provided with vertical plug-in unit (4), and aluminium base adopts the tapping structure to be fixed in radiating subassembly.

5. radiator according to claim 1 and 2 is characterized in that, aluminium base, layer dividing plate, fin are aluminium matter alloy material and are processed into.

6. radiator according to claim 1 and 2 is characterized in that, the thickness of described layer dividing plate is 4mm, is the spacing of 4mm between the adjacent in twos fin.