CN201652022U

CN201652022U - LED street lamp

Info

Publication number: CN201652022U
Application number: CN2010201405089U
Authority: CN
Inventors: 王庆标; 张玉玲
Original assignee: HEBEI SANSHENG GONGYING LIGHTING TECHNOLOGY CO LTD
Current assignee: HEBEI SANSHENG GONGYING LIGHTING TECHNOLOGY CO LTD
Priority date: 2010-03-25
Filing date: 2010-03-25
Publication date: 2010-11-24
Anticipated expiration: 2020-03-25

Abstract

The utility model discloses an LED street lamp which comprises a plurality of LED light sources, a radiator lamp housing and a PCB lamp panel, wherein he LED light sources are arranged on the PCB lamp panel; optical lenses are arranged outside the LED light sources; a plurality of light-proof lamp shades are arranged among the LED light sources; and water-proof devices are arranged at the joints of the light-proof lamp shades and the optical lenses. The LED street lamp increases the radiating area of the lamp body, and reduces heat accumulation and achieves remarkable radiating effect due to the radiator in direct contact with the atmosphere; and luminous flux maintenance rate of the LED light sources is effectively improved and the optical decay of the LED light sources is reduced, thereby effectively guaranteeing long service life of the LED street lamp.

Description

A kind of LED street lamp

Technical field

The utility model relates to a kind of LED street lamp, relates in particular to a kind of module combined type LED street lamp.

Background technology

High-pressure mercury lamp that existing road lighting is generally used and low-pressure sodium lamp, because of the remarkable defective of himself, that is exactly that colour temperature (K=1900/2200/2500) is low excessively, and colour rendering index (Ra=23/60/90) is too poor, makes visual perception's ability drop of pedestrian; The starting current of sodium vapor lamp is big, the energy consumption height, and excessively illumination produces the waste that light pollution etc. all causes the energy.LED has the high characteristics of colour temperature as new type light source, and the colour temperature of super bright white light LEDs can reach 15000K, and colour rendering index is especially near 100.In other words, the lighting requirement that is up to state standards equally uses led light source just can significantly reduce lamp power, so also just can reduce power consumption greatly, is extensive use of the LED product so country just can advocate energetically.

In the LED Lighting Industry, China restricts two big technical bottlenecks of high-power LED street lamp illumination development based on the large power white light LED street lamp; The one, heat dissipation problem, the 2nd, luminous intensity distribution problem; Heat dissipation problem is accompanied by the development of high-power LED illumination always, because the relevant criterion of LED illumination is not at present put into effect as yet, road Lighting Design is also continued to use the original standard of conventional light source, this brings very big puzzlement just for the design of LED street lamp, small-power has no idea to satisfy road illumination standards, add and high-powerly can improve illumination, but also can produce a large amount of heat simultaneously, if heat dissipation problem can not get effective solution, LED joint temperature is too high to be that light extraction efficiency descends, and decline and even inefficacy rapidly, the life-span significantly shortens.Domestic most of enterprise can't well solve above two hang-ups simultaneously, so its product is also using low-power LED to piece together.

Aspect heat radiation, most producers adopt the die casting aluminium material to do radiating element, its parts are to constitute (as shown in Figure 1 and Figure 2) by face shield 1, lens 2, LED lamp pearl 3 and radiator 4, because there is the deficiency of area of dissipation in this kind of problem radiating mode of its manufacture craft, and light fixture is in use heated up rapidly, increase the mode of hot loop pipe in addition, the hot loop pipe is connected (in order to alleviate light fixture weight) with a very little radiator, light source is fixed on the radiator, and whole device is installed in the shell again.When lighting a lamp in the early stage, loop heat pipe can export to heat on the radiator rapidly, but after light source works is stable, radiator maintains an equal level mutually with the temperature of loop heat pipe, the radiator area of this type of cooling system adds the outside inadequately again and wraps up with lamp housing, accumulation of heat is difficult for diffusion, and the LED light decay aggravates even lost efficacy, and shortens the service life of LED greatly.

The assembly that luminous intensity distribution aspect, most street lamp products adopt lens or reflector to design as secondary optics, the light-emitting window of street lamp adopts the offset plate of Merlon (PC) or acrylic (PMMA), to obtain higher light transmittance and the weight that alleviates light fixture.The offset plate material is when exposing in the sun for a long time, can be owing to aging phenomenon appears in the daylight action of ultraviolet ray, offset plate easily produces the Electrostatic Absorption dust in addition, and its surface very easily is worn when being subjected to sand and dust and blowing, and these factors all can cause the decline of its light transmittance; If light-emitting window uses glass 21 (as shown in Figure 2), can increase the weight of light fixture like this, in addition, the light transmittance of glass is lower, still can influence light transmittance after being infected with dust.

Summary of the invention

For solving above-mentioned middle problem and the defective that exists, the utility model provides a kind of LED street lamp.Described technical scheme is as follows:

A kind of LED street lamp comprises:

Comprise a plurality of led light sources, radiator lamp housing, described street lamp also comprises the PCB lamp plate, and described led light source is arranged on the PCB lamp plate, and in the outer setting of led light source optical lens is arranged; Be provided with a plurality of light traps between described a plurality of led light source, and this light trap and described optical lens joining place are provided with the water-proofing treatment device.

Described PCB lamp plate includes a plurality of, and constitutes a plurality of PCB modules by a plurality of PCB lamp plates.

Described radiator lamp housing is the aluminium alloy lamp housing of one for extruding.

Described optical lens is asymmetric sphere formula optical lens, and at the extexine evaporation of this optical lens vacuum coating is arranged.

Described light trap connects as one by fixed part and lamp housing.

The beneficial effect of the technical scheme that the utility model provides is:

By street lamp shell, radiator, LED illuminating module and light trap are combined into one, increased the area of dissipation of lamp body, and the radiator that is provided with contacts with atmosphere directly, reduced heat accumulation, make its radiating effect remarkable; And improve lux maintenance effectively for led light source, reduce light decay, for sound assurance is provided in service life of its LED street lamp.

Description of drawings

Fig. 1 is the prior art structural representation;

Fig. 2 is the prior art sectional structure chart;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is a sectional structure chart of the present utility model.

The specific embodiment

For making the purpose of this utility model, technical scheme and advantage clearer, the utility model embodiment is described in further detail below in conjunction with accompanying drawing:

Shown in Fig. 3,4, showed structure of the present utility model, comprise led light source 33, radiator lamp housing 31, PCB lamp plate 32 and optical lens 34, wherein led light source includes a plurality of, and a plurality of light sources are formed a plurality of led light source modules, its light source module is arranged on the radiator lamp housing by certain spacing, adopts special high conductance heat-conducting cream between light source module and the radiator lamp housing, and led light source module and radiator lamp housing are well united two into one.The outer setting of above-mentioned led light source has optical lens, and optical lens is asymmetric spherical optical lens, and at the outer surface evaporation of optical lens vacuum coating 35 is arranged, and is installed to the relevant position of LED street lamp panel; The vacuum coating of above-mentioned optical lens makes the hardness of optical lens reach the penetrance that the above dustproof and waterproof of 5H also can increase light outward, to be scattered and all project on the subject matter of required illumination after light and effective light process is integrated, make final light extraction efficiency reach 90%, Duoed the light extraction efficiency more than 30% than general light fixture, that is reduced by 30% heat radiation cost, and then reduced weight and also make the user reduce the outfit cost.

Also be provided with a plurality of light traps 36 between the above-mentioned led light source, described light trap is threaded togather by bolt and lamp body, and described light trap and described optical lens joining place are provided with water-proofing treatment device 37.

The panel 38 of LED street lamp has protection light source module and dustproof and waterproof function; above-mentioned radiator lamp housing adopts aluminium alloy extruded one-shot forming as lamp housing, has increased the efficiently radiates heat area of lamp body, and radiator directly contacts with atmosphere; reduced heat accumulation, made radiating effect more remarkable.

The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.

Claims

1. a LED street lamp comprises a plurality of led light sources, radiator lamp housing, it is characterized in that described street lamp also comprises the PCB lamp plate, and described led light source is arranged on the PCB lamp plate, and in the outer setting of led light source optical lens is arranged; Be provided with a plurality of light traps between described a plurality of led light source, and this light trap and described optical lens joining place are provided with the water-proofing treatment device.

2. LED street lamp according to claim 1 is characterized in that, described PCB lamp plate includes a plurality of, and constitutes a plurality of PCB modules by a plurality of PCB lamp plates.

3. LED street lamp according to claim 1 is characterized in that, described radiator lamp housing is the aluminium alloy lamp housing of one for extruding.

4. LED street lamp according to claim 1 is characterized in that, described optical lens is asymmetric sphere formula optical lens, and at the extexine evaporation of this optical lens vacuum coating is arranged.

5. LED street lamp according to claim 1 is characterized in that described light trap connects as one by fixed part and lamp housing.