CN201732539U

CN201732539U - LED (light-emitting diode) light-weight advertising light box

Info

Publication number: CN201732539U
Application number: CN2010201253264U
Authority: CN
Inventors: 林季范
Original assignee: COCHIEF INDUSTRIAL Co Ltd
Current assignee: COCHIEF INDUSTRIAL Co Ltd
Priority date: 2010-02-23
Filing date: 2010-02-23
Publication date: 2011-02-02
Anticipated expiration: 2020-02-23

Abstract

The utility model provides an LED (light-emitting diode) light-weight advertising light box which can be used for arranging advertising films and comprises a light guide plate, an LED module, a reflecting layer, a protective film and a spacing bar, wherein at one side edge on the upper surface of the light guide plate is provided with a groove, and the lower surface of the light guide plate is provided with a plurality of light guide lattice points; the LED module comprises a circuit board and two or more LEDs electrically connected on the circuit board, and is inserted into the groove to enable the LEDs to emit light towards the interior of the light guide plate; the reflecting layer is attached to the bottom surfaces of the light guide lattice points; the protective film is covered on the upper surface of the light guide plate; and the spacing bar is arranged between the protective film and the light guide plate to produce a gap for the insertion of the advertising film. Therefore, the weight and material cost of the advertising light box can be reduced as no aluminum outer frame is needed, and the shape design of the advertising light box is more diversified.

Description

The slim advertising lamp box of LED

Technical field

The utility model refers to the slim advertising lamp box of a kind of LED especially relevant for a kind of advertising lamp box.

Background technology

Along with making rapid progress of science and technology, developed and the different advertising lamp box of many kinds, by day by available light, to evening then can utilize light-illuminating, and the advertisement of being published above making that people are clear and seeing.Early stage advertising lamp box utilizes daylight lamp as lighting source, so its lamp house thickness is often up to more than the 200mm; Along with the universalness of light emitting diode (Light Emitting Diode is designated hereinafter simply as LED), add the volume of LED and power consumption all less than daylight lamp, so increasing advertising lamp box is used LED instead as radiation source, to reach the demand of slimming.

The LED advertising lamp box of prior art mainly comprises: light guide plate, led module and aluminum housing, led module is attached at the side of light guide plate and utilizes the aluminum housing to fix a side or the periphery of led module and light guide plate, and, form described LED advertising lamp box whereby simultaneously as the usefulness of heat radiation.Though said structure can make the thickness attenuation of advertising lamp box and save energy, yet, in fact still has the following point point: when desire is made irregularly shaped or curvilinear advertising lamp box, because the hardness of aluminum housing is bigger, be difficult to produce and have erose aluminum housing, therefore the design and the range of application of having limited to advertising lamp box; On the other hand, the aluminum housing certainly will increase the weight and the material cost of whole advertising lamp box.

Therefore, how to address the above problem, become the target that the utility model is improved.

The utility model content

A purpose of the present utility model is to provide a kind of LED slim advertising lamp box, and it can reduce the weight and the material cost of advertising lamp box.

Another purpose of the present utility model is to provide a kind of LED slim advertising lamp box, and it can be produced easily has rule or erose advertising lamp box.

In order to achieve the above object, the utility model provides a kind of LED slim advertising lamp box, can install for advertising film, comprising: light guide plate, and at least one side of its upper surface offers groove, and its lower surface has a plurality of leaded lights site; Led module comprises circuit board and is laid in two or more LED on the described circuit board, and described led module inserts in the described groove and makes described LED towards described light guide plate internal illumination; And the reflection horizon, be attached at the bottom surface of described leaded light site; Wherein said advertising film fits in the upper surface of described light guide plate, and a part of light that described LED sent passes described light guide plate and the reflection by described reflection horizon or described leaded light site, and mirrors from described advertising film.

Compared to prior art, the utlity model has following effect:

Because the utility model does not have the aluminum housing, so number of spare parts tails off, reduces the weight and the material cost of whole advertising lamp box naturally jointly, therefore, the slim advertising lamp box of LED of the present utility model is more competitive on the cost price.

Hold, because the utility model does not have the aluminum housing, but led module is directly inserted the lip-deep groove of light guide plate, and light guide plate generally all is made by transparent acryl material, be easy to cut into rule or irregularly shaped, therefore, compared with the advertising lamp box of the prior art that is provided with the aluminum housing, shaped design of the present utility model is more extensively changeable.

Description of drawings

Fig. 1 is a perspective exploded view of the present utility model;

Fig. 2 is a three-dimensional combination synoptic diagram of the present utility model;

Fig. 3 is a side-looking diagrammatic cross-section of the present utility model, the course of the light that apparent LED is sent.

Description of reference numerals

1 advertising lamp box, 10 light guide plate

11 grooves, 12 leaded light sites

13 grooves 14 are substituted breach

20 led modules, 21 circuit boards

22 LED, 23 electric wires

24 breakout boxs, 30 reflection horizon

40 screening glass, 41 coloured edges

50 spacer bars, 100 advertising films

Embodiment

Relevant detailed description of the present utility model and technology contents are described as follows conjunction with figs., yet appended accompanying drawing purposes as an illustration only is not to be used to limit to the utility model.

Please refer to Fig. 1 and Fig. 2, be respectively perspective exploded view of the present utility model and three-dimensional combination synoptic diagram.The utility model provides a kind of LED slim advertising lamp box, hereinafter to be referred as advertising lamp box 1; This advertising lamp box 1 mainly comprises: light guide plate 10, led module 20, reflection horizon 30, screening glass 40 and spacer bar 50.This advertising lamp box 1 utilizes the irradiate light of led module 20 in order to show the content of advertising film 100, also can attract the sight through the people of this advertising lamp box 1 when making night.

Light guide plate 10 primary raw materials be polymethylmethacrylate (PMMA is commonly called as acryl) resin, with polycarbonate (PC), light guide plate material on the market is based on PMMA, because it has preferable light transmittance, multiple flexion rate and flowability; The material cost that adds PMMA is lower, so all be with the main material of PMMA as light guide plate generally.Therefore, in embodiment of the present utility model, light guide plate 10 is made for the transparent acrylic material, and at least one side of its upper surface offers the groove 11 that inserts for led module 20; In the shown the utility model embodiment of Fig. 1, three sides in light guide plate 10, process a continuous ㄩ font groove 11 with milling machine, yet the utility model is not confined to this, can be according to the lighting demand of reality, just decide, can set out groove 11 on two sides, three sides or four sides respectively at a side of light guide plate 10 according to the quantity of required led module 20.

Subsidiary one carries, the about 6mm of the thickness of light guide plate 10, the about 4.5mm of the degree of depth of groove 11, and width is about (size according to led module 20 is decided) between the 5mm to 10mm, certainly, the thickness of light guide plate 10 also can be according to the size dimension of led module 20 and increase and decrease to some extent, and Fig. 3 shows that led module 20 inserts in the groove 11 of light guide plate 10 and the synoptic diagram that emits beam.

The lower surface of light guide plate 10 has a plurality of leaded lights site 12, and the production method of leaded light site 12 is divided into two kinds of printing-type and non-printing-types; In the manufacturing process of printing-type, after light guide plate 10 is finished sharp processing, utilization has the highly reflective and the printing ink of extinction not, on the lower surface of light guide plate 10, print out leaded light site 12, described leaded light site 12 is for having the salient point of predetermined pattern, mostly be circular salient point, but also can be the polygon salient point, its arranged in patterns mode can design according to client's brightness demand; In the manufacturing process of non-printing-type, with leaded light site 12 when light guide plate 10 ejection formations directly with mould molding on lower surface.Because the manufacture method of non-printing-type need be offered mould, so cost is higher and be applicable under the situation of a large amount of manufacturings, and the manufacture method cost of printing-type is lower and be applicable to customized design requirement.

The below of leaded light site 12 (being the bottom surface) can attach reflection horizon 30, and this reflection horizon 30 all reflects back in order to the light that will penetrate leaded light site 12, to make full use of the light that led module 20 is produced.The suitable material in reflection horizon 30 comprise white polyethylene terephthalate (PET, polyethyleneterephthalate) and aluminium foil.

As can be seen from Figure 3, the principle that light guide plate 10 is utilized total reflection conducts to the long-range of light guide plate 10 with the light of led module 20, utilize the printed leaded light site 12 of lower surface of light guide plate 10 again, make reflected light toward all angles diffusion, the leaded light stipple pattern that utilizes density to vary in size designs the total reflection that destroys light, light evenly is directed to the front of light guide plate 10, upper surface from light guide plate 10 passes then, to illuminate the advertising film 100 that is inserted on the light guide plate 10, this advertising film 100 fits in the upper surface of this light guide plate 10; The light that a part is passed leaded light site 12 is reflected back in the light guide plate 10 by the reflection horizon 30 of bottom again, the light that is sent with abundant utilization led module 20.

Led module 20 comprises circuit board 21 and is laid in two or more LED22 on the circuit board 21.As shown in Figure 1, be provided with two led modules 20, its insert respectively light guide plate 10 about on two sides in the set groove 11, and make LED 22 respectively towards the internal illumination of light guide plate 10, light can be entered in the light guide plate 10 from the left and right sides of light guide plate 10.Can be electrically connected to each other by electric wire 23 between two led modules 20, be connected to the power supply unit (not shown) by breakout box 24 at last, this power supply unit can be the commercial power socket on the wall, by the voltage and the current conversion of breakout box 24, and become operating voltage and the electric current that is fit to led module 20.

As shown in Figure 1, electric wire 23 can be layed in the groove 11 on the side not placing led module 20 in the light guide plate 10, and offers the groove 13 that can put for breakout box 24 at the edge of light guide plate 10.

Above light guide plate 10, be covered with screening glass 40, it is also made for the transparent acrylic material, and it is in order to protect the beneath advertising film 100 that is inserted in order to avoid impaired or scratch.In general, the thickness of screening glass 40 only is about 1mm to 3mm.In addition,, the periphery of screening glass 40 can be printed out coloured edge 41, thereby avoid directly seeing led module 20 from the outside and the aesthetic appearance that influences advertising lamp box 1 in order to cover the led module of being planted on the light guide plate 10 20.

Be provided with spacer bar 50 between screening glass 40 and the light guide plate 10; it is made for hard acryl or hard polycarbonate (PC) material; in order to bed hedgehopping between screening glass 40 and the light guide plate 10, can supply the space of advertising film 100 insertions and between screening glass 40 and light guide plate 10, produce.Because the very thin thickness of advertising film 100 is so the only about 0.5mm to 1mm of the thickness of spacer bar 50 gets final product.

Be noted that especially; because the effect of spacer bar 50 is will make to produce the space that can supply advertising film 100 to insert between screening glass 40 and the light guide plate 10; so spacer bar 50 can not seal four sides of light guide plate 10 fully, must stay a side to insert for advertising film 100.For example, show among Fig. 1 that spacer bar 50 is the ㄇ font, therefore, advertising film 100 just can insert from the bottom side of light guide plate 10; For the ease of substituting advertising film 100; the bottom side of light guide plate 10 offers substitutes breach 14, and whereby, the user can stretch into finger this and substitute in the breach 14; and extract the advertising film 100 that originally is placed between screening glass 40 and the light guide plate 10 out, and insert a new advertising film 100.

Because spacer bar 50 is arranged between screening glass 40 and the light guide plate 10, so double sticky tape can be attached at the upper and lower surface of spacer bar 50 respectively, whereby screening glass 40, spacer bar 50 and light guide plate 10 threes is closely linked together.Certainly, spacer bar 50 not necessarily can only be made into the ㄇ font, even also can be discontinuous several segments, and promptly a plurality of spacer bars are connected with each other between screening glass 40 and the light guide plate 10 and produce the space as long as can make.

Maximum characteristics of the present utility model do not need fully to be the aluminum housing, so number of spare parts tails off, reduce the weight of advertising lamp box 1 and required material cost naturally jointly, so have very high competitive power on market.

On the other hand; though in the shown embodiment of figure; the regular shape that advertising lamp box of the present utility model 1 is rectangular; but what know is: because the utility model is not provided with the aluminum housing; but directly led module 20 is inserted in the light guide plate 10; and light guide plate 10, screening glass 40 and spacer bar 50 to be the acryl material made, it can be cut into rule or irregularly shaped (or even curve shape) arbitrarily, and makes the design of whole advertising lamp box 1 more enrich changeable.

The above is preferred embodiment of the present utility model only, is not to be used to limit protection domain of the present utility model, and other uses the equivalence of patent spirit of the present utility model to change, and all should be encompassed in the scope of patent protection of the present utility model.

Claims

1. the slim advertising lamp box of LED can install for advertising film, it is characterized in that, comprising:

Light guide plate, at least one side of its upper surface offers groove, and its lower surface has a plurality of leaded lights site;

Led module comprises circuit board and is laid in two or more LED on the described circuit board, and described led module inserts in the described groove and makes described LED towards described light guide plate internal illumination; And

The reflection horizon is attached at the bottom surface of described leaded light site;

Wherein said advertising film fits in the upper surface of described light guide plate, and a part of light that described LED sent passes described light guide plate also by the reflection of described reflection horizon or described leaded light site, mirrors from described advertising film.

2. the slim advertising lamp box of LED as claimed in claim 1 is characterized in that described light guide plate is the acryl material.

3. the slim advertising lamp box of LED as claimed in claim 2 is characterized in that described leaded light site takes shape in the lower surface of described light guide plate with mode of printing.

4. the slim advertising lamp box of LED as claimed in claim 3 is characterized in that described leaded light site is the salient point with predetermined pattern.

5. the slim advertising lamp box of LED as claimed in claim 2 is characterized in that, also comprises screening glass, and lid places described advertising film top.

6. the slim advertising lamp box of LED as claimed in claim 5 is characterized in that the periphery of described screening glass prints out coloured edge.

7. the slim advertising lamp box of LED as claimed in claim 5; it is characterized in that; also comprise a plurality of spacer bars; be arranged between described screening glass and the described light guide plate; described spacer bar produces between described screening glass and described light guide plate can be for the space of described advertising film insertion, and described space is positioned on the lateral edges of described light guide plate.

8. the slim advertising lamp box of LED as claimed in claim 7 is characterized in that described spacer bar is the hard makrolon material.

9. the slim advertising lamp box of LED as claimed in claim 7 is characterized in that the upper and lower surface of described spacer bar is pasted with double sticky tape, and described spacer bar is fixed described screening glass and described light guide plate respectively by described double sticky tape.

10. the slim advertising lamp box of LED as claimed in claim 7 is characterized in that, the described lateral edges of described light guide plate has and can substitute breach for what described advertising film was substituted.