CN200972094Y

CN200972094Y - LED channel lamp

Info

Publication number: CN200972094Y
Application number: CNU2006200159057U
Authority: CN
Inventors: 郭跃群; 许波
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2006-11-20
Filing date: 2006-11-20
Publication date: 2007-11-07
Anticipated expiration: 2016-11-20

Abstract

The utility model discloses an LED tunnel lighting lamp, which comprises a substrate, an LED carried on the substrate and a radiator connected to the substrate. Fish skeleton. In the utility model, the radiator adopts the blades distributed in a herringbone shape, which can effectively dissipate a large amount of heat from the middle position to the edge positions, increase the distance of cold air passing through the radiator, and effectively utilize the cold air.

Description

The LED tunnel illuminating lamp

Technical field

The utility model relates to a kind of LED (light emitting diode) tunnel illuminating lamp, especially high-power LED tunnel illuminating lamp, is applicable to tunnel systems such as vcehicular tunnel, railway tunnel and subway tunnel.

Technical background

The tunnel illumination field is a more special lighting field.Compare with common street lamp, aspect power consumption, common street lamp is only opened at night, and tunnel illuminating lamp is work in 24 hours, continues to light, so every day, power consumption was more than common street lamp.Aspect mounting means, common street lamp is to be erected on the electric pole, and tunnel illuminating lamp is directly installed on the tunnel wall.On maintenance cost, in case break down, tunnel illuminating lamp is higher than common street lamp maintenance cost, because tunnel illuminating lamp is to continue to light, must closure of a tunnel keep in repair.Aspect environment temperature, common street lamp is according to weather condition, and operating ambient temperature is changeable, and the tunnel illuminating lamp working environment is stablized about 25 degree, because vehicles operation causes very big cross-ventilation, and does not have the sleet influence.

At present general what adopt is conventional fluorescent lamps or sodium vapor lamp to the tunnel illumination lamp source, power at 150W between the 400W.This light source is short service life, often need change, and detects, safeguards and fix a breakdown and bring inconvenience to circuit pipeline simultaneously.This has not only increased the illuminator cost, has increased the consumption of the energy simultaneously.

Also having existing LED street lamp, all is to form with a hundreds of low-power LED, and operating efficiency is very low, luminance shortage.

The Chinese patent publication number is the overhead road lamp device of the disclosed solar energy of CN2524072, in the tapered snoot in a plurality of LED side of being loaded on, and is provided with mirror reflective plate in its side, makes each LED bending towards contiguous minute surface, comes the cremasteric reflex light gathering with this.

The Chinese patent publication number is the disclosed solar LED street lamp of CN2679487, is 120 or 180 or 300 LED light pipes polyphone to be set in lamp holder or to compose in parallel plane or cambered surface or barrier shape led light source, is arranged on the reflector.

The Chinese patent publication number is the disclosed LED light projector of CN2743676, and some LED are set on the curved surface mount pad, has opaque or translucent outward or full impregnated bright lamp cover.

Above-mentioned LED lighting device all is only several LED to be used in combination, and adopts reflector, to increase brightness of illumination.Yet high-power LED chip produces very big heat when work, distribute as untimely, will have a strong impact on LED service life.If temperature is about 90 degree around, the LED working life shortens above 90%.Above-mentioned LED lighting device is not all considered the heat radiation factor, lacks practical value.

The Chinese patent publication number is that CN1811266 discloses a kind of high-powered LED lamp with heat sink, by lamp body component, luminescence component and plug lamp socket.Lamp body component comprises the cooling cooling fin, this cooling cooling fin just adopts simple fin type structure, do not pass through appropriate design, when running into a plurality of LED matrix arrangement modes be, the LED environment temperature that is in the center often is higher than several times of the LED environment temperatures of marginal position, be easy to generate temperature distributing disproportionation, radiating effect is undesirable, and center LED lost efficacy easily.

The Chinese patent publication number is that CN1807971 discloses high-power LED high-brightness lighting lamp, and illuminating lamp is by the luminous array of LED, and rear side has the radiating fin metallic heat radiating plate, and the superimposed composition of cooling fan.Though this method adopts the active type of cooling, adopt fan to carry out forced convertion, radiating effect is better than free convection.But because the service life of present fan is limited, and the tunnel environment dust is many, has reduced the service life of fan more.In case fan fails will cause the LED lost of life.Fan life seriously restricts the development of LED illuminating lamp.

LED perhaps adopts the simple circle conical surface as reflecting surface usually with the linear fashion projection source besides, and this reflecting surface has absorbed part light in reflection ray, the corresponding big lens of entire lighting device, and this big lens translucent effect is poor.Above LED illuminating lamp brightness of illumination is low, and irradiation distance is short, and angle is narrow, is difficult to satisfy the requirement of tunnel illumination.

The utility model content

The utility model is exactly in order to solve the problem of heat radiation, to propose a kind of new LED tunnel illuminating lamp.

Another object of the present invention is the problem that solves translucent effect.

For this reason, LED tunnel illuminating lamp of the present utility model comprises substrate, be carried on the LED on the substrate and be connected in radiator on the substrate, and it is characterized in that: radiator is provided with the blade that herring-bone form distributes, and makes entire radiator be fish-bone frame shape.

According to embodiment of the present utility model, LED tunnel illuminating lamp of the present utility model can also comprise following feature:

There is fin type zone at the middle part of described radiator.

Be distributed with elliptical reflector in the LED front, the light emission position of LED is on the focus of elliptical reflector; In the elliptical reflector front ellipsoid lens are arranged, another focus of the focus of ellipsoid lens and elliptical reflector is overlapping.

Ellipsoid lens front also has planar lens.

Also comprise shell, described aluminium base, ellipsoid lens and plane entirety of lens package are on shell.

Illuminating lamp is made up of two or more modules, and each module is separate, and each module connects by the mechanical couplings mode.

The radiator height of each module is different, presents stairstepping after the combination.

A plurality of smooth heat conduction through holes are arranged in the side of radiator.

Described substrate is an aluminium base.

Between aluminium base and the LED, be connected by heat conductive silica gel between aluminium base and the radiator.

Advantage of the present utility model:

Radiator adopts the blade that herring-bone form distributes in the utility model, and effectively the heat that the centre position is a large amount of is dispersed into marginal position, increases the distance that cold air passes through in radiator, effectively utilizes cold air.

Middle position also keeps common fin type shape, and the very fast heated air of the centre position of flowing through is derived as early as possible.

The utility model adopts the oval calotte optical system in optical system, reach good translucent effect.

Adopted split-type structural in the utility model, an integral body of tunnel illuminating lamp is divided into a plurality of individual module, a plurality of modules connect by the mechanical couplings mode, the benefit of split-type structural is that a plurality of module heats can not disturb, and middle that module temperature is lower than the temperature in the corresponding centre position of monolithic construction.

Present steppedly after the combination of a plurality of module radiators of the utility model kind, this mode has solved the module that mediates, and under radiating mode usually, is difficult to a difficult problem that contacts with cold air.

The utility model has been done several smooth through holes in the centre position of three module radiators, and the contact area of the radiator that had both strengthened helps cold air again and passes through, and takes away heat, and further the balance heat distributes.

Description of drawings

The overall structure cutaway view of Fig. 1 the utility model embodiment

Fig. 2 the utility model embodiment radiator schematic rear view

The whole vertical view of Fig. 3 the utility model embodiment

Fig. 4 the utility model embodiment optical system partial schematic diagram

The concrete implication of each label is as follows among the figure: the 1-aluminium base; 2-LED; The oval retrodirective mirror of 3-; 4-ellipsoid lens; The 5-planar lens; The 6-shell; The 7-radiator; 8-heat conduction through hole; 9-fish bone well blade; 10-cold airflow direction; 11-fin type shape area; Oval retrodirective mirror first focus of f-; F "-the ellipsoid lens focus

The specific embodiment

Because tunnel illuminating lamp is used in the tunnel, environment temperature remains on about 25 degrees centigrade throughout the year, and because the motion of the vehicles causes air motion, air motion is often arranged in the tunnel, so the working environment of tunnel illuminating lamp is not the free convection of common street lamp, but initiatively to streamed.By to the radiator appropriate design, can utilize the air-flow in the tunnel, effectively reduce LED module temperature on every side.Because great power LED produces a large amount of heat at luminescence process, particularly in the LED matrix, being positioned at the centre position is focus, typical temperature is the twice of marginal position, if simply adopt monoblock type or adopt general fin type radiator, do not solve the hot issue in LED matrix centre position, will be easy to generate the heat skewness, influence the bulk life time of tunnel illuminating lamp.

And the tunnel illuminating lamp of present embodiment is made up of three individual module, three modules connect by the mechanical couplings mode, each module is benchmark with the aluminium base, the aluminium base front mainly is an optical system, be welded with the LED matrix of being made up of a plurality of great power LEDs above the aluminium base, each LED correspondence an ellipse speculum, in speculum the place ahead by corresponding ellipse lens, a planar lens is arranged in the lens front, main as dustproof usefulness.The aluminium base back is a cooling system, and aluminium base is connected with the radiator of back by heat conductive silica gel, and the radiator height difference of three modules presents stairstepping after the combination.

See that specifically Fig. 1 is to Fig. 4.Aluminium base 1 is arranged in this great power LED tunnel illuminating lamp, be furnished with lead in the above, LED is electrically connected, and carrying great power LED 2, simultaneously the heat that LED distributed is directed on the aluminium base 1.Be distributed with a plurality of elliptical reflectors 3 in great power LED 2 fronts; the light emission position of great power LED is on the focus of elliptical reflector 3; in elliptical reflector 3 fronts ellipsoid lens 4 are arranged; another focus of the focus of ellipsoid lens 4 and elliptical reflector 3 is overlapping, and ellipsoid lens 4 fronts are played the planar lens 5 of proofing dust and protecting effect in addition.Aluminium base 1, ellipsoid lens 4 and planar lens 5 all are to be assembled in above the tunnel illumination lamp housing 6.

Aluminium base 1 back connects radiator 7 by heat conductive silica gel, and several smooth heat conduction through holes 8 are arranged in the side of radiator 7.Utilize barrel to conduct heat, air in the bottoming hole tube, air themperature is raise, improved thermal conductivity factor, can constantly make cold air from collision, obtain heat, thereby the heat of taking away 2 generations of heat great power LED at first is delivered to above the aluminium base 1 by heat conductive silica gel, and aluminium base 1 is delivered on the radiator 7 by heat conductive silica gel again, is delivered in the atmosphere by fish bone wells above the radiator 7 (being that its distribution mode is that herring-bone form distributes) blade 9.

As shown in Figure 2, under the situation of cold airflow direction 10, radiator is divided into three regional A, B, C, belongs to fringe region in the a-quadrant, this zone heat can be had an effect with air-flow very soon, and temperature is minimum.The B district is the higher zone of temperature in entire radiator 7, and by the guide functions of the fish bone well blade 9 above the radiator 7, air-flow takes heat to the A district from the B district, alleviates the hot burden of B.The C district is that temperature is the highest, and air-flow will be through will being discharged system as early as possible by very fast heating later.

Because of the temperature in C district is very high,, the very fast heated air of the centre position of flowing through is derived as early as possible therefore in C block reservation fin type shape area 11.

As shown in Figure 3, under the situation of cold airflow direction 10, three height differences of the radiator 7 of module are independently formed stepped layout, and module can not contact cold airflow because of being in central authorities in the middle of this made, and the bad problem of the heat radiation that causes.This illuminating lamp need be installed by the flow direction according to air-flow shown in Figure 3 owing to reasons in structure.

As shown in Figure 4, according to optical principle:,, finally focus on second focus of oval calotte by the reflection of oval calotte at the oval calotte first focal position spot light.The led light source position is in f on first focus of elliptical reflector 3, the light that LED sends is through the reflection of elliptical reflector 3, converge on the second focus f of elliptical reflector 3, and the focus f of oval diaphotoscope 4 " overlap with the second focus f of elliptical reflector 3; refraction action of light by oval diaphotoscope 4; light-ray condensing is to the centre position, the planar lens 5 that light sees through the front injects to tunnel road surface.Owing in optical system, adopt above-mentioned oval calotte optical system, the LED light-emitting area is positioned at the focal position of elliptical reflector, light is by the reflection of elliptical reflector, gather the front the ellipsoid lens focus, by the refraction of ellipsoid lens, convert directional light to and penetrate, this optical system effectively solves in other utility models and adopts normal mirror, the problem of the veiling glare that produces, light penetrates forward along the direction of design, reaches good translucent effect.

The utility model utilizes the particularity of tunnel environment, and a kind of not only good heat dissipation effect is provided, luminous efficiency height, and the tunnel illuminating lamp of long service life.Compared with prior art, residing particular surroundings when the utility model makes full use of the tunnel illuminating lamp use, reasonably design by carrying out, design a kind ofly, do not need to add the tunnel illuminating lamp of the uniform heat distribution of fan again than common good heat dissipation effect to radiator.In optical system, the ingenious focusing principle that utilizes elliptic focus changes the original light loss consumption that adopts common minute surface reflection to produce, and improves light extraction efficiency.The tunnel illuminating lamp of its design has perfect heat-dissipating, and is rational in infrastructure, characteristics such as light utilization height.

The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can be by various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. An LED tunnel lighting lamp, comprising a substrate (1), an LED (2) carried on the substrate (1) and a radiator (7) connected to the substrate (1), characterized in that the radiator (7 ) is provided with blades (9) distributed in a herringbone shape, so that the whole radiator (7) is in the shape of a herringbone.

2. The LED tunnel lighting lamp according to claim 1, characterized in that there is a fin-shaped area (11) in the middle of the radiator (7).

3. The LED tunnel lighting lamp according to claim 1 or 2, characterized in that an elliptical reflector (3) is distributed in front of the LED (2), and the light emitting position of the LED (2) is located at the position of the elliptical reflector (3). ) on a focal point; there is an elliptical lens (4) in front of the elliptical reflector (3), and the focus of the elliptical lens (4) overlaps with another focal point of the elliptical reflector (3).

4. The LED tunnel lighting lamp according to claim 3, characterized in that there is a flat lens (5) in front of the elliptical lens (4).

5. The LED tunnel lighting lamp according to claim 4, characterized in that it also includes a casing (6), the aluminum substrate (1), elliptical lens (4) and plane lens (5) are assembled in the casing (6) )superior.

6. The LED tunnel lighting lamp according to claim 1 or 2, characterized in that the lighting lamp is composed of two or more modules, each module is independent of each other, and each module is connected by mechanical coupling.

7. The LED tunnel lighting lamp according to claim 6, characterized in that the heights of the radiators (7) of each module are different, and they present a stepped shape after being combined.

8. The LED tunnel lighting lamp according to claim 1 or 2, characterized in that there are a plurality of smooth heat conduction through holes (8) on the side of the radiator (7).

9. The LED tunnel lighting lamp according to claim 1 or 2, characterized in that the substrate (1) is an aluminum substrate.

10. The LED tunnel lighting lamp according to claim 9, characterized in that, the connection between the aluminum substrate (1) and the LED (2), and between the aluminum substrate (1) and the heat sink (7) is through thermally conductive silica gel .