CN200946775Y

CN200946775Y - Large power LED road lighting lamp

Info

Publication number: CN200946775Y
Application number: CNU200620131934XU
Authority: CN
Inventors: 支忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-18
Filing date: 2006-08-18
Publication date: 2007-09-12
Anticipated expiration: 2016-08-18

Abstract

The utility model relates to a high-power LED road lamp, which is composed of a datum, a light shell, and is also composed of a light-emitting diode and a constant-current driving module, wherein the light shell is a circular condensing light-reflecting cup, the datum is a groove-shaped aluminum plate. By adopting the high-power LED with cold lights, the road lamp is high efficient in luminescence , energy-saving and stable, as well as has a long service life-it requires more than 100,000 hours to the optical decline to 50 percent of the initial value. With no stroboscopic luminescence, no glare and good color development, people feel comfortable in eyes, no-fatigue when use the high-power LED road lamp. The lamp can performs a normal function at minus 40 degree to 70 degree, and the LED does not generate any pollution to the environment, but is low cost in maintenance. When in the use, the utility model has advantages of a long projecting distance and a vast light-flooding area.

Description

High-power LED road lighting lamp

Technical field

The utility model relates to the road illuminating lamp technology, the high-power LED road lighting lamp of the employing great power LED light emitting diode of particularly a kind of highway, road special use.

Technical background

Traditional thermal light source type light fixture is generally adopted in present highway and road lighting, and as high-pressure mercury lamp, metal halide lamp, fluorescent lamp, even some local usefulness is incandescent lamp.The general luminous efficiency of these light fixtures is low, has only 11%-25%, the waste electric energy; And producing a large amount of heat, the life-span is short, maintenance cost is high, and it is bad to develop the color, and dazzle is arranged.And contain mercury and fluorescent material in the fluorescent lamp, environment there is pollution.Owing to be to work out of doors, natural environment and weather conditions are more abominable, and the waste of light fixture is very big, particularly bulb, ballast and trigger.

At present, the application of low-power LED light emitting diode both at home and abroad is a lot of, but all is to be used in the demonstration of display screen mainly, and flashlight also has application, does not also occur the white light great power LED is applied on highway and the road lighting lamp.Build in current call under the situation of economizing type harmonious society, LED need be applied on highway and the road lighting lamp especially.

Summary of the invention

The purpose of this utility model is at the deficiencies in the prior art, and a kind of high-power LED (Light Emitting Diode) road illuminating floodlight is provided, and to reduce electric energy loss, reduces maintenance cost, reduces environmental pollution, improves illuminating effect.

For achieving the above object, the utility model provides a kind of high-power LED road lighting lamp, comprise substrate and lamp housing, also comprise LED light emitting diode and constant-current driven module, power supply connects constant-current driven module, the drive output of constant current drive block is in series with a plurality of LED, each LED zener diode all in parallel.

Aforesaid high-power LED road lighting lamp, wherein said lamp housing are circular optically focused reflector or eversion type lamp housing.Described substrate can adopt the channel shaped aluminium base.Each LED is added with the light-focusing type lens.Also comprise connecing Switching Power Supply,, drive the great power LED group of series connection by constant-current driven module by the Switching Power Supply constant-current driven module that goes between by AC power.

The utility model compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, the high-power LED road lighting lamp of the utility model technology has following major advantage:

1. adopt the cold light source great power LED, the luminous efficiency height, conservation of power, the incandescent lamp of equal light efficiency can be saved 80% electric energy loss.Long service life and highly stable, light decay needs more than 100,000 hours to 50% of initial value.Because great power LED is a DC driven, so luminous no stroboscopic develops the color, free from glare makes human eye perceives comfortable, and is not tired.Can arrive 70 degree operate as normal above freezing at 40 degrees below zero, and LED does not produce any environmental pollution.Maintenance cost is low.

2. adopt constant current drive integrated circult piece, components and parts are few, and it is little to generate heat, not fragile, and each LED can also keep obtaining constant current under the situation of voltage pulsation, and is highly stable.

3. each great power LED Zener diode in parallel can puncture conducting when single LEDs damages, and does not influence the work of whole LED group, prolongs light fixture service time.

4. lamp housing can adopt parabola shaped optically focused reflector, the optically focused distance, and the floodlight area is big, and result of use is good.

5. adopted the channel shaped aluminium base, increased the LED area of dissipation, increased the service life.

Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is elaborated.

Description of drawings

Fig. 1 is a kind of electrical schematic diagram of high-power LED road lighting lamp;

Fig. 2 is the another kind of electrical schematic diagram of high-power LED road lighting lamp;

Fig. 3 is the profile schematic diagram of distance light type LED light fixture;

Fig. 4 is the profile schematic diagram of floodlight type LED light fixture;

Among the figure: 1.LED light emitting diode 2. Zener diodes 3. Switching Power Supplies 4. constant-current driven modules 5. substrates 6. lamp housings 7. light-focusing type lens

The specific embodiment

A kind of specific embodiment is, at first by Switching Power Supply 3 the 220V alternating current become the 24V direct current, lights great power LED 1 by constant current drive block 4 again.Collector lens is housed on the great power LED, and in the lamp housing 6 of the with groove shape aluminium base 5 that is fixed, by waterproof pad and water proof and dust proof glass capsulation.Adopt one group of six polyphone between each great power LED, each great power LED is parallel with Zener diode 2, and when a great power LED damaged, Zener diode 2 can puncture conducting, and other great power LED can be worked on, and prolongs the service life of whole light fixture.Also can be by the 220V AC power directly through 1 group of constant-current driven module 4 driving LED.

In the present embodiment, LED structurally can adopt flip chip technology, and non-luminous Sapphire Substrate is removed, and makes light emission rate improve, and luminous efficiency can reach every watt 65 lumen.

The utility model adopts constant current drive integrated circult piece, and components and parts are few, and it is little to generate heat, not fragile, and each LED can also keep obtaining constant current under the situation of voltage pulsation, and is highly stable.Each great power LED Zener diode in parallel can puncture conducting when single LEDs damages, do not influence the work of whole LED group, prolongs light fixture service time.

Lamp housing can adopt parabola shaped optically focused reflector, the light projector distance, and the floodlight area is big, can project far place, and result of use is good.Fig. 3 is the profile schematic diagram of distance light type LED light fixture, and Fig. 4 is the profile schematic diagram of floodlight type LED light fixture, and it adopts the eversion type lamp body, and LED is fixed on the inclined plane, increases lighting area.

Adopted the channel shaped aluminium base, increased the LED area of dissipation, increased the service life.

The power savings of the floodlight of employing LED is huge.This light fixture replacement 250W gold tooth lamp of forming with 66 watts of great power LEDs is an example, and the online general power of 250W gold tooth lamp reaches more than 300 watts, and 66 watts of online general powers of LED light fixture have only 70W, and economize on electricity is more than 75%.And the rectifier bulb of 250W metal halide lamp, its trigger is the easy consumption product, the life-span is short, the maintenance cost height; But the LED light fixture can accomplish 10 years non-maintaining.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solutions of the utility model content that do not break away from,, all still belong in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present utility model.

Claims

1. high-power LED road lighting lamp, comprise substrate (5) and lamp housing (6), it is characterized in that also comprising LED light emitting diode (1) and constant-current driven module (4), power supply connects constant-current driven module (4), the drive output of constant-current driven module (4) is in series with a plurality of LED (1), each LED (1) zener diode (2) all in parallel.

2. high-power LED road lighting lamp according to claim 1 is characterized in that described lamp housing (6) is circular optically focused reflector.

3. high-power LED road lighting lamp according to claim 1 is characterized in that described lamp housing (6) is the eversion type lamp housing.

4. according to claim 1,2 or 3 described high-power LED road lighting lamps, it is characterized in that described substrate (5) can adopt the channel shaped aluminium base.

5. according to claim 1,2 or 3 described high-power LED road lighting lamps, it is characterized in that described each LED (1) is added with light-focusing type lens (7).

6. according to claim 1,2 or 3 described high-power LED road lighting lamps, it is characterized in that also comprising by AC power and connect Switching Power Supply (3), by the Switching Power Supply constant-current driven module (4) that goes between, drive the great power LED group of series connection by constant-current driven module (4).