CN203215590U

CN203215590U - Large-wide-angle LED (light emitting diode) module

Info

Publication number: CN203215590U
Application number: CN 201320160004
Authority: CN
Inventors: 陈乔凯
Original assignee: SHANGHAI YUJI INDUSTRIAL Co Ltd
Current assignee: SHANGHAI YUJI INDUSTRIAL Co Ltd
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2013-09-25
Anticipated expiration: 2023-04-02

Abstract

The utility model discloses a large-wide-angle LED module. The large-wide-angle LED module comprises an LED substrate, LEDs and a diffuser, wherein the LEDs and the diffuser are arranged on the LED substrate, and the diffuser comprises a diffuser body and a lens arranged on the diffuser body. The cross section of the lens is in a round shape, the lens is integrally formed at the top of the diffuser body and thereby enables the bottom surface of the lens to be the top surface of the diffuser body, the bottom surface of the lens is provided with an LED mounting groove, the LED mounting groove corresponds to the LEDs on the LED substrate, the inner surface of the LED mounting groove serves as a light incident surface of the lens and is in an arc shape, and the outer surface of the lens serves as a light emergent surface which is composed of a top round flat surface and an arc-shaped side surface distributed around the periphery of the round flat surface. The diffuser body is matched with the LED substrate provided with the LEDs. The large-wide-angle LED module can evenly emit LED light at 160 degrees.

Description

A kind of big Wide-angle LED module

Technical field

The utility model relates to a kind of LED light fixture, is specifically related to a kind of LED module of big wide-angle.

Background technology

The LED module is exactly the LED(light emitting diode) be encapsulated again by certain regularly arranged together, add the product that some water-proofing treatment are formed.

The LED module is to use wider product in the LED product, also there is very big difference aspect structure aspects and the electronics, simply just become a LED module with a wiring board that LED is housed with shell exactly, complicated just add some controls, constant-current source and relevant radiating treatment make LED life-span and luminous intensity better.

Continuous progress along with the LED manufacturing technology, its light efficiency improves constantly, by the end of at present, the light efficiency of laboratory large power white light LED has surpassed 190lm/W, Cree company announces that especially its laboratory develops the large power white light LED of 208lm/w, and the light efficiency of matured product has also reached 90lm/W in the market.This light efficiency value has represented the potentiality of LED in the road lighting field.

At present, the irradiating angle of common LED module is very limited on the market, and this has limited the practicality of LED module greatly; Moreover existing LED module is formed complex structure, is not easy to manufacture.

These above-mentioned shortcomings have limited the development of LED module greatly.

The utility model content

The utility model is at the limited and complex structure and other problems of irradiating angle of existing LED module, and a kind of big Wide-angle LED module is provided.This LED modular structure is simple, and its irradiating angle reaches 160 degree.

In order to achieve the above object, technical solutions of the utility model are as follows:

A kind of big Wide-angle LED module, comprise the LED pedestal, be placed in LED and diffuser on the LED pedestal, described diffuser comprises cover body and the lens two parts that are arranged on the cover body, described lens cross section is circular, it once takes shape in the top of cover body, make the bottom surface of lens as the end face of cover body, the bottom surface of lens is provided with a LED resettlement groove, this LED resettlement groove is corresponding with the LED on the LED pedestal, the inner surface of LED resettlement groove is circular arc as the plane of light incidence of lens, the outer surface of described lens is the exit facet of light, described exit facet by the disk at top and along the disk circle distribution in arcuate flanks form; Described cover body matches with the LED pedestal that is mounted with LED.

Further, the disk centre position at described exit facet top is provided with the circular arc inner groovy.

Further, described LED pedestal is square, and what described cover body was corresponding also is square.

Further again, the two side of described cover body is provided with the lead placement groove.

Further, settle three LED on the described LED pedestal.

Further again, described three LED are isosceles triangle and distribute.

It can realize the big wide-angle emergent lights of 160 degree the LED module that the utility model provides, and light is even, has good reliability and high brightness Lose goes out; Critical piece one-shot forming in this module simultaneously, it is easy for installation.Moreover, can carry out and connect very strong of practicality between a plurality of LED modules as required.

The utility model has extensive use in practice, as be applied in the products such as lamp box, advertising signboard, characteristics such as big wide-angle, light intensity height, light are whole evenly because this module has, stable performance, can access even light modulation case or advertising signboard, thereby have extraordinary display effect; As long as adopt a spot of LED module can reach corresponding display effect, reduce the price of product greatly simultaneously; And adopt the lamp box of this LED module or advertising signboard also to have reliable and stable properties of product.

Description of drawings

Further specify the utility model below in conjunction with the drawings and specific embodiments.

Fig. 1 is this use new structure schematic diagram;

Fig. 2 is the drive circuit schematic diagram of LED in the utility model;

Fig. 3 is the cutaway view of diffuser in the utility model;

Fig. 4 is polar coordinates distribution curve flux of the present utility model;

Fig. 5 is rectangular co-ordinate distribution curve flux of the present utility model.

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

Referring to Fig. 1, the big Wide-angle LED module 100 that the utility model provides mainly comprises LED pedestal 101, is placed in the LED(102 on the LED pedestal) and diffuser 103 3 parts.

Wherein, LED pedestal 101 is the circuit block of entire module, is used for the corresponding LED of carrying, is its power supply.As shown in Figure 2, it is depicted as LED pedestal 101 circuit structures, and this circuit structure adopts the operating voltage of DC12V, realizes that constant current drives, and has effectively guaranteed the job stability of entire module.

In order to improve the practicality of module, these LED pedestal 101 two ends are provided with corresponding lead 101a, in order to realize between a plurality of modules and connect.

As seen from the figure, the LED pedestal 101 in this example adopts square, but is not limited to this, and it can adopt corresponding shape according to the actual requirements.

LED(102) be light emitting source in the module, it is placed in the middle part of LED pedestal 101.In this example, adopt 3 Teeth, 3022 white light LEDs as light source, effectively guarantee the output of good reliability and high brightness.

In order further to improve reliability and the high brightness of light source, 3 Teeth, 3022 white light LEDs in this example adopt isosceles triangle to distribute.

Diffuser 103 is as the optical element in the module and protective cover, and it can be handled the light that led light source sends, and makes it reach required light, and can to LED pedestal 101 with and on led light source protect.

Referring to Fig. 3, this diffuser 103 comprises cover body 103a and the lens 103b two parts that are arranged on the cover body.

Cover body 103a matches with LED pedestal 101, be used for LED pedestal 101 with and on LED cover fully, thus to LED pedestal 101 with and on LED form protection.The concrete structure of this cover body 103a can be decided according to the actual requirements, general adopt the structure corresponding with LED pedestal 101, as in this example, cover body 103a is a square groove structure, it is connected to form around an end face 103a3 by four sidewall 103a1, and surround a square groove 103a2 in the centre, the size of this square groove 103a2 is corresponding with LED pedestal 101, LED pedestal 101 can be covered by this square groove like this.

Because the two ends of LED pedestal 101 can arrange corresponding lead 101a as required; the sidewall that cover body 103a is relative with this lead 101a is provided with outward extending lead placement groove 103a4 for this reason; not only can the installation position of lead 101a be limited like this; be convenient to the installation that cooperates between cover body 103a and the LED pedestal 101; can also form protection to this lead; avoid it to be destroyed because of ectocine, effectively guarantee the stability of module.

These lens 103b is the optical element of module, these lens are whole to be the column structure of circle for cross section, it once takes shape in the top of cover body, and make the bottom surface of lens 103b as the end face 103a3 of cover body 103a, the bottom surface of lens 103b is a plane, which is provided with a LED resettlement groove 103b1, this LED resettlement groove is corresponding with the LED on the LED pedestal, make cover body 103a when covering LED pedestal 101, LED resettlement groove on the lens 103b bottom surface just in time can cover LED(102 on the LED pedestal 101), thereby make the inner surface of LED resettlement groove as the plane of light incidence 103b2 of lens, and this plane of light incidence 103b2 is circular arc, and what make that the light of LED can maximum magnitude enters into lens 103b.

Simultaneously, the outer surface of lens 103b is the exit facet of light, this exit facet is formed by the disk 103b3 at top with along the arcuate flanks 103b4 of disk circle distribution, can make light evenly penetrate from exit facet thus, thereby can reach the big wide-angle effects of 160 degree.

In order further to improve the treatment effect of the light of lens 103b, this example is provided with circular arc inner groovy 103b5 in the centre position of the disk 103b3 at lens 103b exit facet top, by the light further optical treatment of this arc inner groovy to penetrating from the top, effectively guarantee the uniformity and the big wide-angle effect of emergent ray.

Referring to Fig. 4 and Fig. 5, be respectively this module shown in it and carry out polar coordinates distribution curve flux and the rectangular co-ordinate distribution curve flux that Experiments of Optics obtain.Can directly find out by these two diagrams, its beam projecting angle of the module that the utility model provides can reach the big wide-angle of 160 degree, this module is by descending center brightness simultaneously, be diffused into the edge period, the light that makes module penetrate is evenly whole, and light also has very strong intensity.

Such module has extensive use in practice, as be applied in the products such as lamp box, advertising signboard, characteristics such as big wide-angle, light intensity height, light are whole evenly because this module has, stable performance, can access even light modulation case or advertising signboard, thereby have extraordinary display effect; As long as adopt a spot of LED module can reach corresponding display effect, reduce the price of product greatly simultaneously; And adopt the lamp box of this LED module or advertising signboard also to have reliable and stable properties of product.

More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. one kind big Wide-angle LED module, comprise the LED pedestal, be placed in LED and diffuser on the LED pedestal, it is characterized in that, described diffuser comprises cover body and the lens two parts that are arranged on the cover body, described lens cross section is circular, it once takes shape in the top of cover body, make the bottom surface of lens as the end face of cover body, the bottom surface of lens is provided with a LED resettlement groove, this LED resettlement groove is corresponding with the LED on the LED pedestal, the inner surface of LED resettlement groove is circular arc as the plane of light incidence of lens, and the outer surface of described lens is the exit facet of light, described exit facet by the disk at top and along the disk circle distribution in arcuate flanks form; Described cover body matches with the LED pedestal that is mounted with LED.

2. a kind of big Wide-angle LED module according to claim 1 is characterized in that the disk centre position at described exit facet top is provided with the circular arc inner groovy.

3. a kind of big Wide-angle LED module according to claim 1 is characterized in that described LED pedestal is square, and what described cover body was corresponding also is square.

4. according to claim 1 or 3 described a kind of big Wide-angle LED modules, it is characterized in that the two side of described cover body is provided with the lead placement groove.

5. a kind of big Wide-angle LED module according to claim 1 is characterized in that, settles three LED on the described LED pedestal.

6. a kind of big Wide-angle LED module according to claim 5 is characterized in that, described three LED are isosceles triangle and distribute.