CN203176972U

CN203176972U - LED (Light-Emitting Diode) road lamp with wide irradiation range

Info

Publication number: CN203176972U
Application number: CN2013202054312U
Authority: CN
Inventors: 郭唐辉
Original assignee: FUJIAN DEENKONE ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: FUJIAN DEENKONE ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2013-04-22
Filing date: 2013-04-22
Publication date: 2013-09-04
Anticipated expiration: 2023-04-22

Abstract

The utility model relates to the technical field of a semiconductor lighting system, and particularly to an LED (Light-Emitting Diode) road lamp with a wide irradiation range. The purpose of the utility model is to provide the LED road lamp which can improve an irradiation angle greatly and achieves low luminous energy loss. The LED road lamp with the wide irradiation range has a substrate and one or more LED wafers fixed on the front side of the substrate, wherein a light distribution structure composed of one or more lenses is installed at the front side of the substrate; each lens corresponds to one LED wafer; each lens comprises a semi-ellipsoidal outer shell; each lens is arranged on each LED wafer in a covering manner and is fixed on the substrate; and the backside of the substrate is connected to a heat-conducting substrate. As the ellipsoidal lens structure is adopted, the LED road lamp with the wide irradiation range increases the irradiation range, reduces luminous energy loss greatly, achieves a simple structure and lowers production cost greatly.

Description

The LED street lamp that range of exposures is wide

Technical field

The utility model relates to semiconductor lighting systems technology field, relates in particular to the wide LED street lamp of a kind of range of exposures.

Background technology

Energy problem is a pressing problem that is troubling countries in the world, general illumination especially road lighting has accounted for sizable ratio in consume electric power, the last century Mo appearance of white light LEDs attracts showing warm solicitude for of national governments and enterprise, becomes a hot topic in photoelectron, the illuminating engineering sciemtifec and technical sphere.

Light emitting diode (LED) is a kind of light emitting semiconductor device that utilizes, and its luminescence mechanism is to utilize the compound action in electronics and hole to produce photon.LED has the luminous efficiency height, and colour rendering is good, and power consumption is treated few, energy-conserving and environment-protective, security reliability height, the advantage of long service life.LED has been substituted the high-pressure mercury lamp that present road lighting is mainly adopted as a kind of light source novel, low-power consumption, and LED will replace the main force lamp source that high-pressure mercury lamp is called road lighting in the near future.

The present general structure of LED street lamp is: be provided with circuit layer in the metal substrate one side, a plurality of LED lamp bodies are fixed on the one side that metal substrate is provided with circuit layer, link to each other with circuit layer by lead; At metal substrate light distributing cap is arranged fixedly, the LED lamp body is located in the light distributing cap.The LED lamp body comprises Lamp cup, and uses the LED wafer of epoxy sealing in Lamp cup.The shortcoming of this LED street lamp is that light will just can shoot out by cup and lampshade, and through two secondary reflections and refraction, light loss is bigger, and loss can reach 15-20%, this LED lamp post structure complexity in addition, and volume is big, and production cost is higher.

The utility model content

It is a kind of simple in structure, easy for installation that the purpose of this utility model is to provide, and can improve irradiating angle greatly, the LED street lamp that optical energy loss is little.

For solving the problems of the technologies described above, the utility model provides a kind of range of exposures wide LED street lamp, have substrate, substrate front side one or more LED wafers are fixedly arranged, described substrate front side is equipped with light distribution structure, described light distribution structure is made up of one or more lens, and each lens is corresponding with a LED wafer, and described lens comprise half elliposoidal shell, described lens cap is located at the LED wafer and is fixed on the substrate, and described substrate back is connected with heat-conducting substrate.

Preferably, in the wide LED street lamp of above-mentioned range of exposures, the transparent body that described lens are formed in one.

Preferably, in the wide LED street lamp of above-mentioned range of exposures, the material of described lens is glass.

Preferably, in the wide LED street lamp of above-mentioned range of exposures, described lens are bonded on the substrate.

Preferably, in the wide LED street lamp of above-mentioned range of exposures, described substrate is metal substrate, ceramic substrate or fibre base plate.

Preferably, in the wide LED street lamp of above-mentioned range of exposures, described substrate front side applies reflector layer.

LED street lamp described in the utility model, because the LED wafer directly is sealed in the transparent light distribution structure, its light that sends directly passes light distribution structure and around the directive, adopts the elliposoidal lens arrangement, LED street lamp range of exposures increases, and has significantly reduced optical energy loss; LED lamp post structure described in the utility model is simple in addition, and the LED wafer does not need to be sealed in earlier in the Lamp cup, covers with light distributing cap again, can reduce the volume of LED street lamp like this, and reduces its production cost greatly.The utility model LED street lamp simple in structure, be convenient to make, and can be as required, the curve of design lens reaches luminous uniform purpose when increasing lighting angle.

Description of drawings

Fig. 1 is the structural representation of the wide LED street lamp of range of exposures of the present utility model;

Fig. 2 is lens structure schematic diagram of the present utility model;

Label declaration: 1-LED wafer; The 2-substrate; The 3-lens; The 4-heat-conducting substrate.

The specific embodiment

By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.

See also Fig. 1, structural representation for the wide LED street lamp of the utility model range of exposures, has aluminium base 2, aluminium base 2 fronts at first are coated with insulating layer coating, coated with conductive layer again, positive LED wafer 1, LED wafer 1 is connected with conductive layer by lead, apply reflector layer on aluminium base 2 front side conductive layer, described aluminium base 2 fronts are equipped with light distribution structure, the transparent body that described light distribution structure is formed in one, formed by a plurality of lens 3, each lens 3 is corresponding with a LED wafer 1, and LED wafer 1 is housed in the light distribution structure, as shown in Figure 2, lens 3 of the present utility model comprise half elliposoidal shell, described lens 3 cover at LED wafer 1 and are fixed on the aluminium base 2, and described substrate 2 back sides are connected with heat-conducting substrate 4, have improved the radiating efficiency of whole LED street lamp.

In a specific embodiment, described aluminium base can be replaced by other metal substrate, ceramic substrate or fibre base plate.

After LED street lamp described in the utility model was connected power supply, the light that LED wafer 1 sends had changed radiation direction after 3 refractions of elliposoidal lens, enlarged the effective lighting scope, has reduced the light loss consumption, compares with existing LED street lamp, can reduce light loss 15-20%.In addition because the positive last one deck reflectorized material that applies of aluminium base, it can further effectively utilize light source with through the light of light distribution structure refraction secondary reflection again.

In a specific embodiment, described lens 3 are bonded on the described substrate, and what the fixing assurance of bonding lens can be firm is fixing, certainly, do not limit the fixed form of lens in the present embodiment, in other embodiments, can adopt screw thread to fix or snap fit etc. yet.

In a specific embodiment, the material of described lens is transparent materials such as acrylic or glass, and it adopts one-body molded, and it is soft and even to seamlessly transit the light that further makes ejaculation.

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. LED street lamp that range of exposures is wide, have substrate, substrate front side one or more LED wafers are fixedly arranged, it is characterized in that, described substrate front side is equipped with light distribution structure, described light distribution structure is made up of one or more lens, and each lens is corresponding with a LED wafer, and described lens comprise half elliposoidal shell, described lens cap is located at the LED wafer and is fixed on the substrate, and described substrate back is connected with heat-conducting substrate.

2. the LED street lamp that range of exposures according to claim 1 is wide is characterized in that, the transparent body that described lens are formed in one.

3. the LED street lamp that range of exposures according to claim 2 is wide is characterized in that, the material of described lens is glass.

4. the LED street lamp that range of exposures according to claim 1 is wide is characterized in that described lens are bonded on the substrate.

5. the LED street lamp that range of exposures according to claim 1 is wide is characterized in that, described substrate is metal substrate, ceramic substrate or fibre base plate.

6. the LED street lamp that range of exposures according to claim 1 is wide is characterized in that, described substrate front side applies reflector layer.