CN201262344Y

CN201262344Y - High-power LED traffic signal light

Info

Publication number: CN201262344Y
Application number: CNU2008201376159U
Authority: CN
Inventors: 诸建平; 吴祖通; 邹军; 杨俊颖; 汪文良; 朱伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-19
Filing date: 2008-09-19
Publication date: 2009-06-24
Anticipated expiration: 2018-09-19

Abstract

The utility model discloses a large power LED traffic signal lamp, comprising a large power LED, a shell and a radiator. A dodging plate is provided with a transparent area with a traffic signal identification; the radiator is distributed with the large power LED with the shape being similar to the transparent area; and a refractive body is connected between the dodging plate and the large power LED. The utility model has the advantages of simple structure, safe and reliable performance, low cost, convenience to production and batch production and easy marketization.

Description

A kind of high-power LED traffic signal lamp

Technical field

The utility model relates to a kind of traffic indicating equipment, and particularly a kind of great power LED that adopts is the traffic lights of light source.

Background technology

Light emitting diode (English be called for short LED) is a kind of novel semiconductor light sources, has advantages such as energy-conservation, long service life, response speed be fast, be internationally recognized the 4th generation green light source.In traffic lights, traditional incandescent lamp bulb is big owing to power consumption, service life short, response speed waits reason slowly, is eliminated gradually, and LED has become a kind of inexorable trend as the light source of traffic lights.At present, a large amount of uses mainly is the low-power LED light source in traffic lights, because low-power LED itself is subjected to the restriction of packaging technology, encapsulating material epoxy resin is aging easily, heat dispersion is poor, and therefore long-term use damages easily, and service life is short.In addition, the power and the brightness of low-power LED are limited, need to install many, in case after wherein certain several LED damages, cause the lamp face dim spot to occur easily, influence is used normally, changes trouble, maintenance cost height simultaneously.Therefore, great power LED relies on advantages such as its long service life, stability is high, light decay is little, and beginning progressively replaces low-power LED, becomes the traffic lights light source of a new generation.

In the traffic lights technology of great power LED, multiple solution has been arranged as light source.As being in " high-power LED traffic signal lamp of being convenient to dispel the heat " patent of ZL200720110162.6 in the patent No., be connected with dissipating cover opening or closing at the lamp housing rear side, the front end of dissipating cover has installed surface, and described LED lamp holder is connected on the installed surface.Though this kind mode can effectively solve the heat dissipation problem of great power LED, the light utilization of led light source is not enough, when especially adopting arrow logo, without optical treatment, causes the loss of light easily.In addition, printing opacity hides dirt spare for the such spot light of great power LED, causes the Luminance Distribution of transmission element inhomogeneous easily, has influence on result of use, causes the potential safety hazard of traffic.

Summary of the invention

At above-mentioned technical problem, the utility model provides a kind of high-power LED traffic signal lamp.

To achieve these goals, the measure that the utility model is taked is: a kind of high-power LED traffic signal lamp, include great power LED, shell, radiator, the transparent area of band traffic signals sign is set on the even tabula rasa, on radiator, be distributed with the great power LED of similar transparent area shape, between even tabula rasa and great power LED, be connected with refractive body;

Described refractive body two ends correspond respectively to the shape of transparent area and great power LED;

Described refractive body inside is for hollow or grid is arranged;

Described traffic signals are designated arrow, pedestrian, fork-shaped or circle;

Described refractive body inner surface is provided with reflector layer;

Described great power LED is the integrated package module of multicore;

Described package module is bar shaped;

Described bar shaped package module is similar square or circular shape;

Be fixed with lens on the described great power LED.

The beneficial effects of the utility model: the utility model adopts independently heat dissipation design, effectively the heat that high-power LED light source is produced distributes by fin, reach good heat-radiation effect, the light decay of LED is slowed down, improved the reliability and the service life of light fixture.Simultaneously, the refractive body of employing and transparent area, the corresponding shape of high-power LED light source, and the reflector layer of refractive body inside improve the utilization rate of light, make the more even light emission of transparent area, and be eye-catching and not dazzling.Thus, reduce and to have avoided because traffic congestion, the accident that the various faults of traffic lights cause ensured the unobstructed of traffic route, and vehicle, pedestrian's safety.The utlity model has advantage simple in structure, that performance is safe and reliable, cost is low, be convenient to processing and batch process, easily market-oriented.

Description of drawings

Fig. 1 is the stereochemical structure exploded view of the utility model one embodiment

Fig. 2 is the generalized section of the utility model one embodiment

Fig. 3 is the stereochemical structure exploded view of another embodiment of the utility model

Fig. 4 is the stereochemical structure exploded view of another embodiment of the utility model

Fig. 5 is the result of use schematic diagram of another embodiment of the utility model

The specific embodiment

As shown in Figure 1, 2, present embodiment mainly partly is made up of great power LED 1, substrate 2, radiator 3, refractive body 4, lamp housing 5, even tabula rasa 6, loam cake 7, lampshade 8, power supply 9, shell 10 etc.Wherein, great power LED 1 adopts series connection, or the mode of string and series-parallel connection is fixed on the substrate 2.Great power LED 1 can be single the great power LED that multicore is integrated, or the great power LED of many single-chip package, and color is the red, green, yellow solid color that waits, and multiple color such as also can send out red, green, yellow.According to the difference of lighting angle, different lens can be set on great power LED 1, satisfy the needs of emission light.Be manufactured with the connection electric wiring on substrate 2, so that being electrically connected between the great power LED 1, substrate 2 mainly is to adopt metal or alloy such as copper, aluminium to make, and has good thermal conductivity.Substrate 2 closely is fixed on the radiator 3 by modes such as screw or buckles, and the heat that great power LED 1 is produced can pass to radiator 3 rapidly.Connection contact-making surface between great power LED 1, substrate 2 and radiator 3 is provided with heat-conducting cream, to increase contact area each other, improves radiating effect.

Radiator 3 for heat sink with heat sinking function, have the heat abstractor of fin, or have the shell of heat sinking function.Radiator 3 can directly directly form by technologies such as extruding, die casting, and its position can also can expose the outside at light fixture in lamp interior.

In the present embodiment, the traffic mark transparent area on the even tabula rasa 6 is whole even tabula rasa, for round-shaped.Be distributed with great power LED 1 on radiator 3, its distribution shape is the circle of class transparent area shape, is connected with refractive body 4 between even tabula rasa 6 and great power LED 1.The upper end of refractive body 4 connects and circular transparent area (even tabula rasa 6), and the lower end is connected in great power LED 1 array, forms a passage of light from great power LED 1 to even tabula rasa 6.Wherein, the transparent area on the even tabula rasa 6 can be the shape of various traffic signals signs such as arrow, numeral, fork-shaped or circle, and except that transparent area, all the other are lighttight zone on the even tabula rasa 6.Inner surface at refractive body 4 is provided with reflector layer 41, can increase the reflecting effect of light, improves the utilization rate of light.

Mainly contain in appearance lampshade 8, loam cake 7 and the shell 10 of this example constitute, and form a complete confined space, make light fixture integral body reach rational IP degree of protection.Wherein, shell 10 also can be made into refractive body 4 in the present embodiment, and on the surface one deck reflectorized material is set.Driving power 9 is provided with control circuit, is fixed on the inside of shell 10, can drive great power LED 1, and control its sequence of light and glow color.Driving power 9 connects great power LED 1 by lead, behind the input voltage, carries out constant current power supply and control by 9 pairs of great power LEDs of driving power 1.At light fixture in appearance, structures such as loam cake 7, shell 10 can design and change according to the actual needs, as are designed to the structure of various monomers or a plurality of traffic lights disjunctors.

As shown in Figure 3, be another embodiment of the present utility model.In the drawings, the transparent area on the even tabula rasa 6 is an arrow shaped, and the arrow shaped of doing that great power LED 1 is also corresponding distributes, and refractive body 4 connections and transparent area and great power LED 1 are a sagittate prism structure.In actual applications, can come transparent area shape, the distribution of great power LED 1 and the stereochemical structure of refractive body 4 correspondences on the even tabula rasa 6 of corresponding adjusting, increase the ROA and the uniformity of light according to different traffic signals signs.

Radiator 3 is that aluminum alloy materials directly passes through the aluminium extrusion moulding, and wherein the fin at the radiator back side is laterally or vertically to distribute.Be manufactured with rugged striped on the surface of fin or, improve radiating effect to increase area of dissipation through blasting treatment.Lampshade 8 is mainly glass or transparent plastic material is made, and requires to have high light transmittance and ageing-resistant performance, to improve the whole service life of light fixture.

As shown in Figure 4, the transparent area of even tabula rasa 6 is " 8 " font in the present embodiment, great power LED 1 correspondence on substrate 2 is done " 8 " font and is distributed, refractive body 4 corresponding connections and transparent area, great power LED 1, grid by refractive body 4 inside is divided into refractive body 47 parts such as 4a, 4b, 4c, 4d, 4e, 4f, 4g, seven zones of corresponding numeral " 8 " form 7 light path airtight passages from the transparent area to the light source respectively.Wherein, great power LED 1 not only is single high-power LED light source, can also be the integrated high-power LED module of multicore, is similar square or circular shape.In the present embodiment, high-power LED module can be packaged into rectangular shape, is scattered in " 8 " font on substrate 2.Seven intra-zones at refractive body 8 are provided with reflectorized material, and on great power LED 1 lens are set, and to regulate the shooting angle of light, increase the utilization rate of light.

Even tabula rasa 6 is for having the equally distributed material of the light of making, and is mainly the materials such as glass that LGP, frosted acrylic board, surface optical were handled.Other zones of removing " 8 " font on even tabula rasa 6 are light tight, and the even tabula rasa of transparent area can make the traffic signals sign luminous uniformly under the irradiation of great power LED 1 light source, and is bright and not dazzling.

Fig. 5 is the result of use figure of present embodiment, be shown as among the figure numeral " 5 ", luminous by 5 zones such as

control

4a, 4b, 4g, 4e, 4d, other 3 zones are not luminous, show whole traffic signals sign.Obviously, by controlling the luminous and color of 7 zoness of different, just can realize different digital and color from 0～9.By one or more present embodiments, can realize a plurality of numerals, any combination of multiple color.

Above-described embodiment is the more preferably specific embodiment of the utility model, and common variation that those skilled in the art carries out in the technical scheme scope and replacement all should be included in the protection domain of the present utility model.

Claims

1, a kind of high-power LED traffic signal lamp, include great power LED, shell, radiator, it is characterized in that being provided with on the even tabula rasa transparent area of band traffic signals sign, on radiator, be distributed with the great power LED of similar transparent area shape, between even tabula rasa and great power LED, be connected with refractive body.

2, high-power LED traffic signal lamp according to claim 1 is characterized in that, described refractive body two ends correspond respectively to the shape of transparent area and great power LED.

3, high-power LED traffic signal lamp according to claim 2 is characterized in that, described refractive body inside is for hollow or grid is arranged.

4, according to claim 2 or 3 described high-power LED traffic signal lamps, it is characterized in that described traffic signals are designated arrow, numeral, pedestrian, fork-shaped or circle.

According to claim 2 or 3 described high-power LED traffic signal lamps, it is characterized in that 5, described refractive body inner surface is provided with reflector layer.

6, high-power LED traffic signal lamp according to claim 1 is characterized in that, described great power LED is the integrated package module of multicore.

7, high-power LED traffic signal lamp according to claim 6 is characterized in that, described package module is bar shaped.

8, high-power LED traffic signal lamp according to claim 7 is characterized in that, described bar shaped package module is similar square or circular shape.

9, according to claim 1 or 6 described high-power LED traffic signal lamps, it is characterized in that, be fixed with lens on the described great power LED.