CN203787051U - LED lamp box - Google Patents

Abstract

The utility model discloses an LED (Light-Emitting Diode) lamp box which comprises a box body, a reflector and a plurality of LED light source modules. The box body comprises a frame and a light-transmitting plate. The reflector is arranged in the frame. A plurality of LED light source modules are arranged on the reflector at intervals, wherein the reflector comprises a plurality of wave crest structures and a plurality of wave trough structures; the wave crest structures and the wave trough structures are arranged between each two adjacent LED light source modules in a staggered manner, so that part of light generated by the LED light source modules is guided to the light-transmitting plate by the wave crest structures and the wave trough structures. By the lamp box provided by the utility model, the light irradiated to the light-transmitting plate by the LED light source modules is more uniform and softer and the integral brightness of the light-transmitting plate is improved. Moreover, by the configuration mode of the LED light source module, LED light sources are isolated from the outside and dust is prevented being adsorbed to LED light bars, so that the light emitting efficiency of the LED light bars is sufficiently utilized.

Description

LED lamp box

Technical field

The application relates to lighting field, is specifically related to a kind of LED lamp box.

Background technology

Existing lamp box,, as the equipment of picture exhibition, often there is dispel the heat smooth, the good or not inhomogeneous problem of brightness in the particularly lamp box using LED as light source, this is relevant with the structural design of light-source system on the one hand, also relevant with the dust accumulating in lamp box on the other hand.Due to the static that light source in use produces, a large amount of dust that made light source adsorption, impacts the brightness of lamp box, and is not easy cleaning at the dust of light source Adsorption on Surface.

In addition, existing lamp box is generally the lamp box of built-in lamp, its inside arranges several fluorescent tubes that be arranged in parallel, owing to thering is certain interval between two adjacent fluorescent tubes, cause the vacancy of light, after turning on light, lamp box picture there will be the discontinuous or inhomogeneous phenomenon of light, produces black-tape, namely so-called rib line phenomenon, its lamp that has a strong impact on lamp box and picture is according to effect.

In order to reduce rib line phenomenon, generally at the display surface of lamp box, softbox is set in addition, and strengthens distance between lamp box backboard and softbox to reduce illuminance, thereby eliminate black-tape.But this lamp box structure can not be eliminated rib line phenomenon completely.And, due to the distance having widened between lamp box backboard and softbox, can cause lamp house thickness to strengthen, volume increases, thus waste starting material and electric energy are not only uneconomical but also not attractive in appearance.

Summary of the invention

Technical problems to be solved in this application are to provide a kind of LED lamp box, be arranged at by LED light source module between the crest structure and trough structure of reflector, allow the light that LED light source module produces be distributed in uniformly on light-passing board by the reflection between light-passing board and reflector and refraction action, thereby solved light and easily form at light-passing board the problem of rib line phenomenon.In addition, by the configuration mode of LED light source module, allow and be arranged at LED lamp bar and the external environment isolation in LED light source module, easily adsorb the not good problem of brightness that dust causes thereby solved LED lamp bar.

For addressing the above problem, the application has disclosed a kind of LED lamp box, comprises casing, reflector and multiple LED light source module.Casing comprises framework and light-passing board, and light-passing board is arranged on framework, and and framework between form enclosure space.Reflector is arranged in framework, reflector comprises the multiple crest structures and the multiple trough structure that are crisscross arranged, and be connected to the multiple loading ends between crest structure and trough structure, and its medium wave peak structure is close to a side of light-passing board, and trough structure is close to a side of base of frame.Multiple LED light source modules are arranged at respectively on multiple loading ends of reflector, and corresponding to light-passing board, the part light that LED light source module produces is directed on light-passing board by reflector.

Further, in the application's LED lamp box, the loading end of reflector is plane, towards the cambered surface of light-passing board bending or towards the cambered surface of base of frame bending.

Further, in the application's LED lamp box, the side that the crest structure of reflector is close to light-passing board has groove.

Further, in the application's LED lamp box, LED light source module comprises lamp socket, LED lamp bar and transparent front plate.Lamp socket comprises base plate and two side plates, and base plate is arranged on the loading end of reflector, and two side plates are connected to the relative dual side-edge of base plate, and and base plate between form storage tank, on the another side of the relative storage tank of its latus inframedium, be provided with multiple radiating fins.LED lamp bar is arranged on base plate, and the opposite side of the relative base plate of LED lamp bar is electrically provided with multiple LED, and these LED arrange along the long side direction of LED lamp bar.Transparent front plate is arranged on lamp socket, and covers storage tank.Transparent front plate comprises two canned paragraphs and light diffuser, and two canned paragraphs are incorporated into respectively on two side plates of lamp socket, and light diffuser is connected between two canned paragraphs.Wherein, light diffuser comprises relative incidence surface and exiting surface, and incidence surface is corresponding to LED lamp bar, and exiting surface is corresponding to the light-passing board of casing, and the light that multiple LED send enters light diffuser by incidence surface, and scatters on light-passing board by exiting surface.

Further, in the application's LED lamp box, the exiting surface of light diffuser is the curved surface towards incidence surface bending.

Further, in the application's LED lamp box, the incidence surface of light diffuser is the bending direction curved surface identical or different with exiting surface.

Further, in the application's LED lamp box, one end that the side plate of lamp socket is away from base plate has installation portion, and two canned paragraphs of transparent front plate are incorporated into respectively on the installation portion of two side plates.

Further, in the application's LED lamp box, the installation portion on lamp socket side plate is the groove being formed on side plate, and the canned paragraph of transparent front plate is embedded in groove.

Further, in the application's LED lamp box, the side plate of lamp socket comprises supporting section and the section of extending out, supporting section is connected between base plate and the section of extending out, the section of extending out tilts to be connected in supporting section, wherein the distance between the section of extending out of two side plates is towards cumulative away from the direction of supporting section, and the direction of multiple radiating fin along supporting section towards the section of extending out be spaced, and along the long side direction extension of side plate.

Further, in the application's LED lamp box, be arranged at intervals with two projections on the base plate of lamp socket, LED lamp bar clipping is between two projections.

Compared with prior art, the application can obtain and comprise following technique effect:

The application allows the LED light source being arranged in LED light source module be isolated from the outside by the use of LED light source module, avoids LED light source to adsorb dust and the brightness of LED lamp box and uniformity coefficient are impacted.In addition, the application's lamp box is arranged at by LED light source module between the crest structure and trough structure of reflector, the light that allows LED light source module send is subject to refracting on light-passing board of crest structure and trough structure, and by the reflex of light-passing board and the refraction action of reflector, allow light form scattering effect in casing and be distributed in uniformly in casing, thereby the brightness in half-light region in compensation casing, and can avoid a large amount of light direct irradiations on light-passing board, the problem of (rib line phenomenon) thereby solution light light and shade that skewness produces on light-passing board differs.And the lamp box providing by the application, can allow light more even on light-passing board, soft and the overall brightness of LED lamp box and uniformity coefficient are obtained promote.

Brief description of the drawings

Accompanying drawing described herein is used to provide further understanding of the present application, forms the application's a part, and the application's schematic description and description is used for explaining the application, does not form the improper restriction to the application.In the accompanying drawings:

Fig. 1 is the schematic side view of the LED lamp box of the application one embodiment;

Fig. 2 and Fig. 3 are the schematic side view of the LED lamp box of other embodiment of the application;

Fig. 4 is the schematic perspective view of the LED light source module of the application one embodiment;

Fig. 5 is the schematic side view of the LED light source module of the application one embodiment; And

Fig. 6 and Fig. 7 are the schematic side view of the LED light source module of other embodiment of the application.

Embodiment

To coordinate drawings and Examples to describe the application's embodiment in detail below, by this application's implementation procedure how application technology means solve technical matters and reach technology effect can be fully understood and be implemented according to this.

Censure specific components as used some vocabulary in the middle of instructions and claim.Those skilled in the art should understand, and hardware manufacturer may be called same assembly with different nouns.This specification and claims are not used as distinguishing the mode of assembly with the difference of title, but the difference in function is used as the criterion of distinguishing with assembly.If " comprising " mentioned in the middle of instructions and claim is in the whole text an open language, therefore should be construed to " comprise but be not limited to "." roughly " refer to that in receivable error range, those skilled in the art can solve the technical problem within the scope of certain error, reach described technique effect substantially.In addition " couple ", or " electric connection " word comprises directly any and electric property coupling means indirectly at this.Therefore, be coupled to one second device if describe a first device in literary composition, represent that described first device can directly be electrically coupled to described the second device, or be indirectly electrically coupled to described the second device by other device or the means that couple.Instructions subsequent descriptions is to implement the application's preferred embodiments, and right described description is to illustrate that the application's rule is object, not in order to limit the application's scope.The application's protection domain is when being as the criterion depending on the claims person of defining.

Also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, commodity or the system that make to comprise a series of key elements not only comprise those key elements, but also comprise other key element of clearly not listing, or be also included as the intrinsic key element of this process, method, commodity or system.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, commodity or the system that comprises described key element and also have other identical element.

embodiment describes

As shown in Figure 1, the disclosed LED lamp box 1 of the application one embodiment comprises casing 10, LED light source module 20 and reflector 30.

Casing 10 comprises framework 110 and light-passing board 120, and light-passing board 120 is arranged on framework 110, and and framework 110 between form enclosure space 130.

Reflector 30 is arranged at a side that is close to framework 110 bottoms in the enclosure space 130 of casing 10, namely away from a side of light-passing board 120.The wavy sheet that reflector 30 can be made up of the metal material with reflecting effect, or at other materials surface spraying or apply the wavy sheet that one deck reflectorised paint or reflective membrane form, but be not limited with described.Therefore, reflector 30 has staggered multiple crest structure 310 and multiple trough structure 320, and its medium wave peak structure 310 is positioned at the side near light-passing board 120, and trough structure 320 is positioned at the side near framework 110 bottoms.And reflector 30 can be to be fixed on framework 110 bottoms or to be installed on casing 10 with the form that relative two ends are fixed on relative two sidewalls of framework 110 by trough structure 320.

In addition, reflector 30 also comprises loading end 330, and loading end 330 is connected between crest structure 310 and trough structure 320, and corresponding to the light-passing board 120 of casing 10, wherein loading end 330 can be plane; Or towards the curved surface (as shown in Figure 2) of light-passing board 120 direction bendings; Or be the curved surface (as shown in Figure 3) towards framework 110 bottom bend.In the time that loading end 330 is curved surface, except increasing light-receiving area, can also increase refraction (or reflection) angle of light, allow light be subject to the effect of reflector and scatter on light-passing board, thereby light is uniformly distributed on light-passing board, and promotes overall brightness.

As shown in Figure 1, Figure 4 and Figure 5, multiple LED light source modules 20 of LED lamp box 1 are arranged at respectively on the loading end 330 of reflector 30, namely allow each LED light source module 20 between the crest structure 310 and trough structure 320 of reflector 30, and corresponding to the light-passing board 120 of casing 10.

LED light source module 20 comprises lamp socket 210, LED lamp bar 220 and transparent front plate 230.Lamp socket 210 is made up of metal material, and for example integrated aluminium, except lightweight and easy assembling, can also provide good radiating effect.Lamp socket 210 comprises base plate 211 and two side plates 212, lamp socket 210 is arranged at by base plate 211 on the loading end 330 of reflector 30, two side plates 212 are arranged at respectively the relative dual side-edge of base plate 211, and and between base plate 211, form storage tank 213, its latus inframedium 212 comprises supporting section 2121 and the section of extending out 2122, supporting section 2121 is connected between base plate 211 and the section of extending out 2122, and, distance between the section of extending out 2122 of two side plates 212 can be but be not limited to towards cumulative away from the direction of supporting section 2121, thereby make two side plates 212 on base plate 211, form similar bell-mouth structure of air.In addition, on the another side of each side plate 212 relative storage tanks 213, be provided with multiple radiating fins 214, the direction of these radiating fins 214 along supporting section 2121 towards the section of extending out 2122 is spaced, and extends along the long side direction of side plate 212.

LED lamp bar 220 is arranged on the base plate 211 of lamp socket 210, and LED lamp bar 220 comprises substrate 221 and multiple LED222, and multiple LED222 are electrically arranged on substrate 221, and are spaced along the long side direction of substrate 221.Wherein, LED lamp bar 220 can be but for example be not limited to, by heat conduction jointing material 240 (heat conductive silica gel) and fit on base plate 211, thereby be fixed on base plate 211, and the heat producing when LED220 work by base plate 211 conducts on lamp socket 210, thereby reach the effect that allows LED lower the temperature.In addition, in order to increase the steadiness of LED lamp bar 220 on lamp socket 210, two projections 215 can also be optionally set in the present embodiment on the base plate 211 of lamp socket 210, two projections 215 are arranged at intervals on base plate 211, and, distance between two projections 215 is matched with the width of the substrate 221 of LED lamp bar 220 just, for example be equal to or slightly less than the width of substrate 221, the substrate 221 of LED lamp bar 220 can be fixed between two projections 215 by friction tight mode clipping, thereby on the firm base plate that is incorporated into lamp socket 210 211.

Transparent front plate 230 is arranged on lamp socket 210, and covers storage tank 213, thereby forms enclosure space with lamp socket 210, allows LED lamp bar 220 and external environment isolation, can avoid dust in external environment to enter in lamp socket 210 and is adsorbed on LED lamp bar 220.Transparent front plate 230 comprises two canned paragraphs 231 and is connected in the light diffuser 232 between two canned paragraphs 231, two canned paragraphs 231 are incorporated into respectively on two side plates 212 of lamp socket 210, wherein, the tail end of the section of extending out 2122 of two side plates 212 (away from supporting section 2121 one end) has installation portion 2123, this installation portion 2123 can be the plane being formed on the end face of the section of extending out 2122, allows stickup or the sealed mode that canned paragraph 231 on transparent front plate 230 can pass through be incorporated in this plane, or, installation portion 2123 can be also the groove (as shown in Figure 3) being bent to form on the tail end of the section of extending out 2122, and the groove in the section of extending out 2122 of two side plates 212 is mutually corresponding, and the long side direction along two side plates 212 extends, thereby form in order to assemble the attachment rail of transparent front plate 230 on lamp socket 210, in the case, transparent front plate 230 can be embedded in respectively in the installation portion 2123 of lamp socket 210 by two canned paragraphs 231, and lamp socket 210 slides relatively by the guiding of installation portion 2123, thereby cover the storage tank 213 of lamp socket 210, and LED lamp bar 220 is closed in lamp socket 210.

What deserves to be explained is, light LED lamp bar 220 being sent for fear of installation portion 2123 causes and blocks, installation portion 2123 on two side plates 212 can be to protrude towards outside wall surface direction from the internal face of two side plates 212, namely stretch out in outside storage tank 213, and can not block the light that LED222 sends in storage tank 213.

In addition, in some embodiment of the application, installation portion 2123 can be also the storage tanks 213 that are positioned at part or whole, at this moment, the strip opening that multiple openings can be set on installation portion 2123 or extend along side plate long side direction, to reduce blocking LED222 light, thereby avoid formation dark space, adjacent place or concealed wire between module and module, the shape of its split shed can be various, for example oval, square etc., or be the forms such as the breach of sawtooth wave or square-wave-shaped, as long as the light that stops that can be as far as possible few can also be fixed transparent front plate 230 simultaneously, be not limited with described.

As shown in Figure 4 and Figure 5, the light diffuser 232 of transparent front plate 230 comprises relative incidence surface 2321 and exiting surface 2322, and wherein incidence surface 2321 and exiting surface 2322 can be planes; Or incidence surface 2321 is that plane, exiting surface 2322 are the curved surface towards incidence surface 2321 direction bendings; Or be incidence surface 2321 and exiting surface 2322 in the same direction or the curved surface of different direction bending.In the present embodiment, be taking incidence surface 2321 as plane, exiting surface 2322 is towards the curved surface of the direction bending of incidence surface 2321 as an example, but not as limit, thereby make light diffuser 232 there is the structural form of concavees lens.And when transparent front plate 230 is arranged on lamp socket 210, the incidence surface 2321 of light diffuser 232 is just corresponding to LED lamp bar 220.After the LED222 on LED lamp bar 220 emits beam, this light enters in light diffuser 232 by incidence surface 2321, then produce disperse function by the refraction of exiting surface 2322, thereby scatter to outside lamp socket 210, and then in the equally distributed light area of the outer formation brightness of lamp socket 210.

Refer to Fig. 1, Fig. 4 and Fig. 5, therefore, in the time of the casing 10 interior composition light-source system of multiple LED light source modules 20 at LED lamp box 1, LED light source module 20 is passed through the exiting surface 2322 of light diffuser 232 corresponding to the light-passing board 112 of casing 110, make the light that multiple LED222 send enter light diffuser 232 by incidence surface 2321, then scatter on light-passing board 112 by exiting surface 2322, and illuminate light-passing board 112, and the illumination on light-passing board 112 is uniformly distributed, and significantly promote the overall brightness of light-passing board 112, and then solve light and be radiated on light-passing board 112 not good the or problem pockety of brightness.

Except making light, the light diffuser 232 by LED light source module 20 produces scattering process, when light is passed to after light-passing board 120, the light of part also can be subject to light-passing board 120 and reflex to crest structure 310 and the trough structure 320 of reflector 30, irradiates thereby allow crest structure 310 and the relative dark space in trough structure 320 lamp boxes such as LED such as grade 1 also can be subject to light.Moreover, these light also can further be subject to the angle of bend impact of crest structure 310 and trough structure 320, and reflect or be reflected back light-passing board 120 from various angle, thereby in the interior generation diffraction effect of casing 10, and then significantly promote the uniformity coefficient of light in casing 10, finally make to be passed to light on light-passing board 120 have be evenly distributed, luminance raising texts.

Refer to Fig. 6 and Fig. 7, although above-mentioned enforcement is on the transparent front plate 230 with LED light source module, the incidence surface 2321 of light diffuser 232 is plane, exiting surface 2322 is to the curved surface of incidence surface 2321 bendings as an example, but in other embodiment of the application, incidence surface 2321 and exiting surface 2322 can be also bending in the same direction curved surfaces, and in the time that transparent front plate 230 combines with lamp socket 210, incidence surface 2321 and exiting surface 2322 are respectively towards the curved surface (as shown in Figure 6) of LED lamp bar 220 direction bendings, for example there is the curved surface of identical or different curvature, thereby promote the scattering efficiency of light, or be that incidence surface 2321 and exiting surface 2322 can be the curved surfaces towards different direction bending, namely incidence surface 2321 is towards the direction bending of exiting surface 2322, and exiting surface 2322 is towards the direction bending of exiting surface 2321, thereby form the structural form (as shown in Figure 7) of biconcave lens, allow the light that LED lamp bar 220 sends pass through after the refraction action of incidence surface 2321 and exiting surface 2322, promote scattering efficiency, thereby promote brightness and the uniformity coefficient of light.

In addition, in the disclosed embodiment of the application, transparent front plate is made up of transparent material, namely can allow the material of light penetration, all-transparent or the translucent materials such as such as glass, PC plate, softbox, ground glass.If what adopt is all-transparent front shroud, it can, so that the disposable as much as possible transmission of the light that light source is sent is gone out, relatively be applicable to have on the displaying image lamp house that background color is white or light light-passing board, as picture exhibition purposes; And in the time adopting translucent front shroud (as softbox, milk blank etc.), the light that light source can be sent returns part light reflection in lamp socket by translucent protecgulum, go out by inboard wall of lamp holder face secondary reflection again, so, the light that is equivalent to by translucent front shroud, light source to be sent first carries out irradiating to picture exhibition direction after uniform treatment again, makes through the light of translucent front shroud softer on the whole.

For instance, when the background color of the displaying picture on the light-passing board that is arranged on lamp box is that white or light color are while being, the light that LED light source sends is first by the scattering process of transparent front plate, again by the reflex of the tunica albuginea on light-passing board or light film part be reflected back toward in reflector or the lamp socket of LED light source module, and then formation secondary reflection scatters to light-passing board, produce diffraction of light effect by this round multiple reflections and scattering process, the light that LED light source can be sent carries out even soften handled, in addition, when the background color of the displaying picture on the light-passing board that is arranged on lamp box is that black or dark color are while being, black film on transparent surface or dark film will absorb the light that light source sends, and can or seldom light reflection not returned in reflector or the lamp socket of LED light source module, now can adopt translucent front shroud, the light that now LED produces will be formed secondary reflection and be passed through the scattering process of light diffuser by translucent front shroud, thereby first the light that light source is sent carry out even soften handled in lamp socket inside, be equivalent to form a light box that sends uniform light, therefore, when light that LED sends arrives the light after being dodging while showing the black film of picture or dark film on light-passing board, black-tape and bright wisp (being rib line phenomenon) have been avoided producing on light-passing board, and the transmission distance of light is shortened, so just can reduce greatly the thickness of lamp box, also increased overall brightness, or can reduce power consumption in the situation that brightness is constant.

Further, in order to strengthen the leakproofness of LED light source module, in the application's embodiment, can also cover plate be set respectively at relative two ends of lamp socket long side direction, the cover plate that allows lamp socket, transparent front plate and be arranged at relative two sides of lamp socket encloses enclosure space, LED lamp bar is closed, avoid the adhesion of dust, and also easily cleaning.In addition, can also tool be positioned at lamp socket on the wall of storage tank reflective material layer is set, for example spraying or apply one deck reflectorised paint or reflective membrane, improves the luminescence efficiency of LED light source module more.

And, in some embodiment of the application, the xsect of lamp socket can be toroidal, the width of opening part is greater than baseplate width, but concrete shape can be various, for example trapezoidal, the angle of its bottom surface and biside plate is preferably more than or equals the lighting angle of light source, be outside the trapezoidal side effective lighting angle in light source, the lighting angle of light source is the light scattering angle of light source, for example, when the lighting angle of light source is that 40 degree to 120 are while spending, the angle of base plate and side plate is set to be equal to or greater than 120 degree, so, the side plate of lamp socket not only can not stop the direct projection light of light source, and the light that light-passing board can be reflected is reflected back on light-passing board again.

Based on above-mentioned, the disclosed LED lamp box of the application, the enclosure space that the lamp socket by LED light source module and transparent front plate form, has played and has prevented that dust from entering in lamp socket and being adsorbed in the function of LED lamp bar.And, on light diffuser by transparent front plate, at least exiting surface is the curved-surface structure to incidence surface bending, the light that LED sends can be dissipated into outside lamp socket by the refraction action of exiting surface, thereby it is more even, soft to make to expose to light on the light-passing board of lamp box, and allow the overall brightness of lamp box obtain to promote.In addition, be arranged on the configuration mode of crest structure and the trough structure of reflector by multiple LED light source modules, make the light that LED light source module produces can be subject to fully refraction or the reflex of reflector, and significantly promote brightness and the uniformity coefficient that light presents at light-passing board.

Above-mentioned explanation illustrates and has described some preferred embodiments of the application, but as previously mentioned, be to be understood that the application is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, amendment and environment, and can, in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the spirit and scope that the change that those skilled in the art carry out and variation do not depart from the application, all should be in the protection domain of the application's claims.

Claims (9)

1. a LED lamp box, is characterized in that, comprising:

Casing, comprises framework and light-passing board, and described light-passing board is arranged on described framework, and forms enclosure space with described framework;

Reflector, be arranged in described framework, described reflector comprises the multiple crest structures and the multiple trough structure that are crisscross arranged, and be connected to the multiple loading ends between described crest structure and described trough structure, wherein said crest structure is close to a side of described light-passing board, and described trough structure is close to a side of described base of frame; And

Multiple LED light source modules, are arranged at respectively on described multiple loading ends of described reflector, and corresponding to described light-passing board, the part light that described LED light source module produces is directed on described light-passing board by described reflector.

2. LED lamp box as claimed in claim 1, is characterized in that, the described loading end of described reflector is plane, towards the cambered surface of described light-passing board bending or towards the cambered surface of described base of frame bending.

3. LED lamp box as claimed in claim 1, is characterized in that, described LED light source module comprises:

Lamp socket, comprise base plate and two side plates, described base plate is arranged on the described loading end of described reflector, described two side plates are connected to the relative dual side-edge of described base plate, and and form storage tank between described base plate, on the another side of the relatively described storage tank of wherein said side plate, be provided with multiple radiating fins;

LED lamp bar, is arranged on described base plate, and the opposite side of the relatively described base plate of described LED lamp bar is electrically provided with multiple LED, and described multiple LED arrange along the long side direction of described LED lamp bar; And

Transparent front plate, be arranged on described lamp socket, and cover residence and state storage tank, described transparent front plate comprises two canned paragraphs and light diffuser, described two canned paragraphs are incorporated into respectively on described two side plates of described lamp socket, and described smooth diffuser is connected between two canned paragraphs;

Wherein, described smooth diffuser comprises relative incidence surface and exiting surface, described incidence surface is corresponding to described LED lamp bar, described exiting surface is corresponding to the described light-passing board of described casing, the light that described multiple LED sends enters described smooth diffuser by described incidence surface, and scatters on described light-passing board by described exiting surface.

4. LED lamp box as claimed in claim 3, is characterized in that, described exiting surface is the curved surface towards described incidence surface bending.

5. LED lamp box as claimed in claim 3, is characterized in that, described incidence surface is the bending direction curved surface identical or different with described exiting surface.

6. LED lamp box as claimed in claim 3, is characterized in that, one end that the described side plate of described lamp socket is away from described base plate has installation portion, and described two canned paragraphs of described transparent front plate are incorporated into respectively on the described installation portion of described two side plates.

7. LED lamp box as claimed in claim 6, is characterized in that, described installation portion is the groove being formed on described side plate, and the described canned paragraph of described transparent front plate is embedded in described groove.

8. LED lamp box as claimed in claim 3, it is characterized in that, the described side plate of described lamp socket comprises supporting section and the section of extending out, described supporting section be connected in described base plate and described between the section of extending out, the described section of extending out tilts to be connected in described supporting section, distance described in wherein said two side plates between the section of extending out is towards cumulative away from the direction of described supporting section, and the direction of described multiple radiating fin along described supporting section towards the described section of extending out be spaced, and along the long side direction extension of described side plate.

9. LED lamp box as claimed in claim 3, is characterized in that, on the described base plate of described lamp socket, is arranged at intervals with two projections, and described LED lamp bar clipping is between described two projections.