CN201547613U

CN201547613U - Led street lamp

Info

Publication number: CN201547613U
Application number: CN2009202708885U
Authority: CN
Inventors: 王欢; 牛慧平; 罗勰; 薛景懿
Original assignee: Shanxi Jieyu Opto-electronics Co Ltd
Current assignee: Shanxi Jieyu Opto-electronics Co Ltd
Priority date: 2009-12-02
Filing date: 2009-12-02
Publication date: 2010-08-11
Anticipated expiration: 2019-12-02

Abstract

The utility model relates to an LED street lamp, and aims at solving the technical problem of providing an LED street lamp with high light-emitting rate and stable performance. The LED street lamp comprises a power supply, a substrate, a cooling device connected with one side of the substrate, and a reflection cup connected with the other side of the substrate, wherein the reflection cup comprises a base, on which a reflection groove is arranged; the bottom end of the reflection groove is provided with a light-emitting hole, and the top end thereof is provided with a tapering platform type reflection clipper; a radiating blade is a fin-shaped aluminum blade and vertical to a core plug and an end cover. In the utility model, a reflection cup of the LED street lamp utilizes the reflection clipper to lead the emitting light of lamp to be a regular and uniform rectangle. After being installed, the fin-shaped radiating blade is vertical to the vertical axis of a road, thus being capable of reducing the flowing of heat inside the street lamp, and obviously improving the radiating effect.

Description

The LED street lamp

Technical field

The utility model relates to a kind of lighting, is specially a kind of LED street lamp.

Background technology

The manufacturing enterprise of LED street lamp scarcely pays attention to the application of secondary optics at present, perhaps utilize lens unreasonably, overemphasize the high illumination of light fixture lumen number and working face, ignore the design of lamp applications occasion and luminous intensity distribution, cause street lamp center illumination too high, the bright dipping rate variance, uniformity is perfect inadequately, causes the road surface bright field very strange, the requirement that does not reach the road illumination average degree, both wasted energy, also do not reach desirable effect.The heat radiation of LED street lamp is the key factor that guarantees its stable performance, at present the radiating mode that adopts mainly contains: Natural Heat Convection, install fan forced heat radiation, heat pipe, loop heat pipe heat radiation etc. additional, install fan forced heat radiation mode system complex additional, reliability is low, heat pipe and loop heat pipe radiating mode cost height, the radiator shutter arrangement mode of the LED street lamp of employing Natural Heat Convection mode is unreasonable at present, cross-ventilation is poor, has influenced radiator shutter and has played a role.

Summary of the invention

Technical problem to be solved in the utility model provides the LED street lamp of a kind of light emission rate height, stable performance.

The technical solution adopted in the utility model is: a kind of LED street lamp, comprise power supply, substrate, the heat abstractor that is connected with substrate one side, the reflector that is connected with the substrate opposite side, described reflector comprises base, base is provided with reflective groove, reflective bottom land end has light hole, reflective groove is divided into two groups, only there is the top of one group of reflective groove wherein to be provided with the reflective clamp of taper platform shape, the upper surface of reflective clamp is connected with reflective groove top, the area of the lower surface of reflective clamp is less than the area of light hole, two groups of reflective grooves are alternately arranged on base, and described heat abstractor comprises the radiator that is provided with radiator shutter, and the radiator two ends connect plug and end cap respectively, radiator shutter is an aluminum fin-shaped blade, radiator shutter and plug, end cap is vertical.

The utility model has increased the reflective clamp of taper platform shape, uses the rectangle of optical range for rule.Two groups of reflective grooves are alternately arranged on substrate, make bright dipping even.The arrangement of radiator shutter should fully take into account the environment for use of street lamp, and the radiating surface of LED street lamp is on the side of light fixture, and there is mounted angle in lamp holder.Usually, the plane that will be parallel to the road longitudinal axis is defined as C0 and C180 direction, will be defined as C90 and C270 perpendicular to the direction of the road longitudinal axis, and the C90 direction is towards road, and C270 is towards the building of behind, road.After the street lamp installation, plug and end cap are parallel to the road longitudinal axis, and promptly plug and end cap are on the C0 direction, and radiator shutter of the present utility model and plug, end cap are vertical, and the arrangement mode that just makes radiator shutter is on the C90 direction.

It is a rule that the reflective clamp of LED street lamp reflecting cup utilization above light hole that the utility model provides makes the light fixture bright dipping, uniform rectangle, not only fully reasonable use all light of sending of LED, and make shadow surface can cover spacing between two lamps fully, and brightness is bigger, and road illumination is more even.The utility model adopts the fin-shaped radiator shutter of arranging perpendicular to the C90 direction of the road longitudinal axis, air is mobile best on this direction, the heat that each radiator shutter produces can both be brought to the street lamp outside rapidly, compare with other arrangement mode of employing, can reduce heat the flowing of street lamp inside, heat radiation is significantly improved.

Description of drawings

Fig. 1 is the structural representation of the utility model LED street lamp.

Fig. 2 is the sectional view of the utility model LED street lamp.

Fig. 3 is the structural representation of reflector.

Fig. 4 is the structural representation of substrate.

Fig. 5 is the distribution curve flux of the utility model street lamp.

Fig. 6 is the structural representation of the utility model road lamp power supply

Among the figure, the 1-power supply; The 2-substrate; The 3-reflector; The 4-base; The reflective groove of 5-; The 6-light hole; The reflective clamp of 7-; The 8-radiator shutter; The 9-radiator; The 10-plug; The 11-end cap; 12-asphalt base carbon fiber substrate; The 13-heat-conducting layer; 14-voltage stabilizing rectification module; The 15-constant flow module; The 16-osculum; The 17-oxide layer.

The specific embodiment

A kind of LED street lamp, comprise power supply 1, substrate 2, the heat abstractor that is connected with substrate 2 one sides, the reflector 3 that is connected with substrate 2 opposite sides, described reflector 3 comprises base 4, base 4 is provided with reflective groove 5, reflective groove 5 bottoms have light hole 6, reflective groove 5 is divided into two groups, only there is the top of one group of reflective groove 5 wherein to be provided with the reflective clamp 7 of taper platform shape, the upper surface of reflective clamp 7 is connected with reflective groove 5 tops, the area of the lower surface of reflective clamp 7 is less than the area of light hole 6, and two groups of reflective grooves 5 are alternately arranged on base 1.If can have only a reflective groove 5 of not establishing reflective clamp 7 between two reflective grooves 5 of reflective clamp 7, the plural reflective groove 5 of not establishing reflective clamp 7 also can be arranged, but at interval can not be excessive, be advisable with three the reflective grooves 5 in interval according to different light distribution requirements.

Heat abstractor comprises the radiator 9 that is provided with radiator shutter 8, and radiator 9 two ends connect plug 10 and end cap 11 respectively, and radiator shutter 8 is an aluminum fin-shaped blade, and radiator shutter 8 and plug 10, end cap 11 are vertical.Plug 10, end cap 11 are equipped with sealing strip with the junction of radiator 9, and radiator shutter 8 is evenly arranged between plug 10 and the end cap 11.Plug 10 is provided with osculum 16, also helps ventilating in timely and effective discharge ponding.

Radiator 9 lower ends connect heat-conducting layer 13.Heat-conducting layer 13 adopts thermal conductive silicon rubber cushion or modified epoxy heat conductive insulating layer, and the heat that can rapidly light fixture be produced is delivered to radiator 9.

Be provided with the reflective groove 5 of two rows on the described base side by side, the number of the reflective groove 5 of every row is 7, and wherein the reflective groove 5 of a row only is provided with reflective clamp 7 on its even bit, and another is arranged the even bit of reflective groove 5 except that the centre position and is provided with reflective clamp 7.Adopt after the above scheme distribution curve flux as shown in Figure 5, distribution curve flux is that bat is wing, the rising angle of light fixture on 0-180 ° of direction is 135 °, rising angle on 90-270 ° of direction is 65 °, the light fixture bright dipping is the rectangle of a rule like this, not only fully reasonable use all light of sending of LED, and make shadow surface can cover spacing between two lamps fully, and brightness is bigger, and road illumination is more even.

Described substrate 2 comprises asphalt base carbon fiber substrate 12 and the modified epoxy heat-conducting layer 13 that is connected with the one side surface.Asphalt base carbon fiber substrate 12 is provided with a side of heat-conducting layer radiator 9 is installed, and opposite side is installed the LED lamp.The thermal conductivity factor of asphalt base carbon fiber substrate 12 can be up to 700-800, the heat conductivility of the more traditional LED substrate of heat conductivility is enhanced about more than once, with the insulating barrier of the traditional LED substrate of heat-conducting layer 13 replacements, this modified epoxy heat-conducting layer 13 has stronger thermal conductivity, also has insulation function simultaneously.Asphalt base carbon fiber substrate opposite side surface coverage layer of oxide layer 17, this oxide layer 17 improve substrate anticorrosion, antioxidation ability through chemical oxidation treatment.LED street lamp substrate described in the utility model, its preparation method is: at asphalt base carbon fiber substrate 12 upper surface electrolysis layer of copper circuits, again unnecessary circuit pack is got rid of, and then will there be the substrate of copper wire to cover one deck heat-conducting layer 13 with modified epoxy, carve in the place that will need with etching technique LED is installed, the asphalt base carbon fiber substrate back passes through chemical oxidation treatment again, improves substrate anticorrosion, antioxidation ability.

Described power supply 1 comprises input power supply, voltage stabilizing rectification module 14 and at least one constant flow module 15, the input of voltage stabilizing rectification module 14 with import power supply and be connected, output is connected with constant flow module 15.The utility model will be imported several roads that power source voltage reduces and be divided into current constant by the voltage stabilizing rectification module, be powered to the LED lamp by constant flow module again.Adopt above constant current power supply, current fluctuation is controlled in 1% scope, guarantee that LED works under its rated current, guarantee the life-span of LED light fixture.The LED light fixture is as a kind of energy-conserving product, the energy saving of power supply also is its important part, and all about 75%, the utility model passes through circuit optimization to the conversion efficiency of conventional products at present, adopt Japanese red jewel, NCC electric capacity, conversion efficiency is brought up to more than 90%.Make the LED light fixture really become comprehensive energy-conserving product.Electrical source power factor and harmonic wave directly influence the ruuning situation of national grid, country puts into effect the product that relevant criterion has clearly stipulated to adopt High Power Factor and low harmonic wave, the electrical source power factor of this product can reach 0.99, and harmonic wave all is far superior to national standard less than 15%.

Claims

1. LED street lamp, comprise power supply (1), substrate (2), the heat abstractor that is connected with substrate (2) one sides, the reflector (3) that is connected with substrate (2) opposite side, it is characterized in that: described reflector (3) comprises base (4), base (4) is provided with reflective groove (5), reflective groove (5) bottom has light hole (6), reflective groove (5) is divided into two groups, only there is the top of one group of reflective groove (5) wherein to be provided with the reflective clamp (7) of taper platform shape, the upper surface of reflective clamp (7) is connected with reflective groove (5) top, the area of the lower surface of reflective clamp (7) is less than the area of light hole (6), two groups of reflective grooves (5) are gone up alternately at base (1) and are arranged, described heat abstractor comprises the radiator (9) that is provided with radiator shutter (8), radiator (9) two ends connect plug (10) and end cap (11) respectively, radiator shutter (8) is an aluminum fin-shaped blade, radiator shutter (8) and plug (10), end cap (11) is vertical.

2. LED street lamp according to claim 1, it is characterized in that: be provided with two row's reflective grooves (5) on the described base side by side, the number of the reflective groove of every row (5) is 7, wherein a reflective groove of row (5) only is provided with reflective clamp (7) on its even bit, and another is arranged the even bit of reflective groove (5) except that the centre position and is provided with reflective clamp (7).

3. LED street lamp according to claim 1 is characterized in that: described substrate (2) comprises asphalt base carbon fiber substrate (12) and the modified epoxy heat-conducting layer (13) that is connected with the one side surface.

4. LED street lamp according to claim 1, it is characterized in that: described power supply (1) comprises input power supply, a voltage stabilizing rectification module (14) and at least one constant flow module (15), the input of voltage stabilizing rectification module (14) is connected with the input power supply, and output is connected with constant flow module (15).