CN102278625B - LED lamp box - Google Patents
LED lamp box Download PDFInfo
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- CN102278625B CN102278625B CN201110133385.5A CN201110133385A CN102278625B CN 102278625 B CN102278625 B CN 102278625B CN 201110133385 A CN201110133385 A CN 201110133385A CN 102278625 B CN102278625 B CN 102278625B
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- lamp box
- led
- reflecting plate
- reflector
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Abstract
The invention provides an LED lamp box, comprising a lamp box external frame and an LED reflector in the external frame, the LED reflector is formed by a plurality of independently-detachable reflector module groups, each reflector module group comprises a box body, the box body is provided with a transparent front cover and a rear cover; the inner of the box body is provided with at least a reflecting board, the reflecting surface of the reflecting board is opposite to the transparent front cover; and the reflecting board is provided with a plurality of LED installation parts. The LED lamp box is advantageous in that, via the sealed box body, an LED lamp is isolated from the outside world in use, preventing an LED light source from influencing brightness of the lamp box due to adsorbed dust; and the reflector module groups can separate the whole reflecting board into a plurality of module groups for assembly, a single module group is not only advantaged by light weight and small volume, but is also advantaged by accommodation in the box body, even a single person can easily complete installation or maintenance work, particularly for a bottom cover opening or side cover opening type lamp box, assembling and disassembling operations of the module group at the cover opening position can be easily performed in a very small operation space, and the lamp box structure can also make whole light of the lamp box be more uniform.
Description
Technical field
The present invention relates to a kind of lamphouse light source field, relate in particular to a kind of LED lamp box.
Background technology
, as the equipment of picture exhibition, often there is the good or not inhomogeneous problem of brightness in existing LED lamp box, this is relevant with the structural design of reflector on the one hand, also relevant with the dust accumulating in lamp box on the other hand.Due to the static that LED in use produces, make LED lamp adsorption a large amount of dusts, the brightness of lamp box is impacted, and the dust of LED lamp Adsorption on Surface be not easy cleaning.
In addition, existing LED lamp box reflector panel mostly is a very large integral slab equipment structure, because volume and weight is all very large, cause on fitting operation very inconvenient, especially for adopting the end to uncap or when side open type lamp box structure, because lighthouse front cover cannot be opened, operating space is more narrow and small, when running into when need to LED being safeguarded or be changed, have to whole reflector panel to disassemble again and operate.Existing LED lamp box also exists reflector reflection ray inhomogeneous simultaneously, causes the undesirable problem of lamp box bandwagon effect.
Therefore, the structure of a kind of new LED lamp box of current needs solves the problems referred to above.
Summary of the invention
This practicality invention technical problem to be solved is to provide a kind of LED lamp box, to overcome the good or not inhomogeneous problem of existing LED lamp box brightness, and the problem of reflector installation and maintenance inconvenience.
For solving the problems of the technologies described above, the invention provides a kind of LED lamp box, comprise the LED reflector in lamp box outside framework and outside framework, described LED reflector is made up of multiple independently detachable reflector modules, described each reflector module comprises a box body, and described box body has a transparent front and a bonnet; In described box body, be provided with at least one reflecting plate, the reflecting surface of described reflecting plate is relative with described transparent front; On described reflecting plate, there are multiple LED installation portions.
The present invention also provides a kind of LED lamp box, comprises the LED reflector in lamp box outside framework and outside framework, and described LED reflector is made up of multiple independently detachable reflector modules, and described each reflector module comprises a transparent front and a bonnet; Described bonnet comprises frame and reflecting plate, and described frame engages with described transparent front and reflecting plate respectively, and the reflecting surface of described reflecting plate is relative with described transparent front; On described reflecting plate, there are multiple LED installation portions.
The present invention, by airtight box body, is in use isolated from the outside LED lamp, has avoided the dust impact that on lamp box brightness cause of LED light source because of absorption; Simultaneously, use LED reflector module provided by the invention, the reflecting plate of whole LED lamp box can be decomposed into multiple modules comes assembled, single module is not only lightweight, volume is little, and be contained in a box body, even if also can completing very easily, a people installs or maintenance work, particularly uncap the end of for or side open type lamp box, do not need very large operating space just can pack into and the operation drawing off module from uncapping very easily, structure of the present invention also makes lamp box overall light more even simultaneously.
Accompanying drawing explanation
Fig. 1 is according to the cross sectional representation of reflector module in the LED lamp box described in the embodiment of the present invention;
Fig. 2 is according to the cross sectional representation of reflector module in the LED lamp box described in another embodiment of the present invention;
Fig. 3 is according to the front view of reflector module in the LED lamp box described in further embodiment of this invention;
Fig. 4 is the schematic diagram of the integral LED lamp box reflector that combines according to the reflector of LED lamp box shown in multiple Fig. 3 module;
Fig. 5 is the schematic diagram of stairstepping reflecting plate in embodiments of the invention.
The specific embodiment
The present invention is described further with reference to the accompanying drawings.
LED lamp box of the present invention, comprises the LED reflector in lamp box outside framework and outside framework, and described LED reflector is made up of multiple independently detachable reflector modules.Fig. 1 is according to the cross sectional representation of reflector module in the LED lamp box described in the embodiment of the present invention.Each reflector module comprises a box body 10, and described box body 10 has a transparent front 101 and a bonnet 102; In described box body, be provided with at least one reflecting plate 103, the reflecting surface of described reflecting plate 103 is relative with described transparent front; On described reflecting plate 103, there are multiple LED installation portions 104.
In another embodiment, described LED reflector module comprises transparent front and bonnet; Described bonnet comprises frame and reflecting plate, and described frame engages with described transparent front and reflecting plate respectively, and the reflecting surface of described reflecting plate is relative with described transparent front; On described reflecting plate, there are multiple LED installation portions.
The main difference of above-mentioned two embodiment is, one is that bonnet and reflecting plate split are formed; Another is that bonnet and reflecting plate entirety are formed, and reflecting plate itself forms a part for bonnet.Two embodiment can form a box space, due to the relative seal of box space, have not only played dustproof effect, and clean and charge and discharge operations is more easy.The box body that described split forms can be more tight, and profile is also more regular; Described integrally formed box body is more saved material, and thermal diffusivity is better, each has something to recommend him in performance, the embodiment mainly forming with described bonnet and reflecting plate split below describes, in fact, no matter be that split forms or entirety forms, the concrete structure of described reflecting plate does not all have essential distinction.
Transparent front described in the embodiment of the present invention, refers to the protecgulum of being made up of the material that can see through light, all-transparent or the translucent protecgulums such as such as glass, PC plate, light-passing board, softbox, ground glass.
Such as, if adopt all-transparent protecgulum (glass or PC plate etc.), can be so that the light disposable transmission as much as possible that LED is sent to be gone out, the background color that is relatively suitable for picture exhibition is that white or light lamp box are shown picture; And in the time adopting translucent protecgulum (as softbox, milk blank etc.), the light that LED can be sent returns part light reflection to reflector by translucent protecgulum, secondary reflection is gone out again, so, after the advanced uniform treatment of light that is equivalent to by translucent protecgulum, LED be sent, irradiate again to picture exhibition direction, make through the light of translucent protecgulum softer on the whole.
For instance, be that white or light color are while being when being arranged on the background color of the displaying picture on lamp box, the tunica albuginea of the light that LED sends by this displaying picture or light film and part be reflected back toward reflecting plate side, forming secondary reflection irradiates to picture again, by this round multiple reflections, utilize diffraction of light effect, the light that LED can be sent carries out even soften handled; But, be that black or dark color are while being when being arranged on the background color of the displaying picture on lamp box, the black film of this displaying picture or dark film will absorb the light that LED sends, and not can or seldom by light reflection back reflective plate side, this has just reduced the chance of secondary reflection, also reduced the even light effect of reaching via secondary reflection, this will produce bright wisp on displaying picture, affect the bandwagon effect of lamp box, can only be by increasing the thickness of lamp box, extend light path and weaken bright wisp, but this can increase manufacturing cost undoubtedly, and affect attractive in appearance.
For this situation, if protecgulum is set to translucent protecgulum, first the light that the secondary reflection that will form by this translucent protecgulum sends LED carry out even soften handled in cassette interior, be equivalent to form a light box that sends uniform light, when light that light box sends arrives the light after being dodging while showing the black film of picture or dark film, avoid producing bright wisp on displaying picture, so just can reduce greatly the thickness of lamp box, because light path shortens, also increased overall brightness, or can reduce power consumption in the situation that brightness is constant.
By the actual test of double transparent front and all-transparent protecgulum, under equal conditions, adopt the thickness of the lamp box of translucent protecgulum, can dwindle more than 10% than the thickness of the lamp box that adopts all-transparent protecgulum; And under equal conditions, the light uniformity also can increase more than 10%.
Described box body 10 can be illustrated in figure 1 rectangle box body, can be also other shapes, and for example transparent front and/or bonnet are curved, or transparent front is a cover body, covers at the structures such as bonnet, and the present invention does not limit this.And, if considered for heat radiation, can also offer at bonnet place some louvres, but this design still belongs to the category of the box body described in the present embodiment.
Described reflecting plate can be various structures, for example, can be surface plate, can be also the shape with multiple grooves as shown in Fig. 1 embodiment, and described LED installation portion 104 can be positioned at described groove.
When for single-sided lamp box, can use a reflecting plate 103, and only to need protecgulum be transparent or semitransparent; And in the time being used for double-faced lamp, two reflecting plates can be set box body 10 is interior, the opposing setting in front and back, and transparent front and bonnet all to need be transparent; Or by opposing the front and back of module globality provided by the present invention setting, can realize the effect of double-faced lamp.
Described LED installation portion 104, can be multiple LED mounting hole site, installation personnel can be installed on LED on reflecting plate by LED by this installing hole, and the LED circuit accessories such as needed electric wire or circuit board can see through installing hole and be installed in the gap between reflecting plate and bonnet.
The present invention is by airtight box body, LED lamp is in use isolated from the outside, avoid the surface of LED lamp directly to adsorb extraneous dust, even due to the electrostatic interaction of LED lamp, after long-term use, outside the transparent front of box body, absorption has dust, is also easy to the dust outside smooth transparent front to clean out.
And the present invention can be made up of jointly the combination of multiple LED reflector modules the integral LED reflector of lamp box, therefore, only need an operation that people just can pack into or split out single led reflector module, complete very easily installation or the debugging of overall lamp box reflecting system.This is for subway lamp box, and advantage is more obvious.For the consideration of security, before not allowing for the lamp box of subway, uncap, can only be, by the mode of opened at bottom, lamp box reflector is carried out to installation and maintenance.In prior art situation, if there is a LED to be damaged in lamphouse light source, because the uncap operating space of lamp box, the end is narrow and small, maintenance personal keeps in repair after need to having to whole reflecting plate to draw off.And utilize the present invention, the module at the LED place of this damage can be taken out.
According to one embodiment of present invention, the groove structure of reflecting plate 103, can be the spaced forward triangle of sawtooth waveforms or tool wave mode etc., is preferably trapezoidal waveform.The groove structure of trapezoidal waveform, not only bottom land is plane, and LED can be conveniently installed, and the adjacent slot body side surface tool of adjacent notches is at regular intervals, and forms a plane.If adjacent notches close proximity, the angle that adjacent slot body side surface forms easily forms bright line at the relative position of showing picture, has affected the bandwagon effect of picture; And the dual-side of adjacent two grooves is spaced a distance, form a plane, because can not making the light that LED sends, this plane place forms convergence, avoid the appearance of bright line.Meanwhile, the plane of formation has also increased self intensity of reflecting plate, when conflicting while supporting with transparent front, can better fit with transparent front, and the compactness of raising box body entirety.
As shown in Figure 1, its cross section is trapezoidal waveform, wherein the base of trapezoidal wave and the angle of dual-side are more than or equal to the lighting angle of LED, outside effective lighting angle of the side of trapezoidal wave in LED, and the light scattering angle that the lighting angle of LED is LED, for example, when the lighting angle of LED is that 40 degree-120 are while spending, if the angle of described base and side is less than 120 degree, can stop the direct projection light of LED, therefore, preferably, the base of trapezoidal wave and the angle of dual-side should be not less than 120 degree.Like this, because lamp box is secondary reflection equipment, the trapezoidal wave side of reflecting plate not only can not stop the direct projection light of LED, and the light reflecting from the direction of picture exhibition plate can be reflected back to picture exhibition direction again.As shown in Figure 1, along trapezoidal wave base to top margin direction, the distance of described trapezoidal wave side and picture exhibition direction shortens gradually, and just, the light being reflected back from picture exhibition direction is also from trapezoidal wave base portion to both sides diminuendo, and like this, we can see, the described side position nearest apart from picture exhibition direction is also the most weak part of light being reflected back from picture exhibition direction, and the most weak light is again reflected back picture exhibition direction by light path that so can be the shortest.Thus, along side by that analogy, the light of crescendo can be reflected back to picture exhibition direction with gradually long light path, realize the even of overall light.
In Fig. 1, the bonnet 102 of box body is a plane, and as above-mentioned, the bonnet of box body can be also other structures certainly.As shown in Figure 2, for according to the cross sectional representation of the LED lamp box reflector module described in another embodiment of the present invention.The bonnet of described box body has a base plate 201, described base plate has multiple grooves 202, position is corresponding with the groove of described reflecting plate 103, the bottom of the groove of described reflecting plate 103 is contained in the groove 202 of described bonnet base plate, and the side of described reflecting plate 103 grooves is by the support of being conflicted of the notch of described bonnet bottom plate groove 202.By the setting of the multiple grooves to bonnet, can strengthen the intensity of box body bonnet itself, guarantee that the structure of box body is more stable, be not easy to produce deformation, reflecting plate 103 is also played the effect of support simultaneously.
As shown in Figure 3, for according to the front view of the LED lamp box reflector module described in further embodiment of this invention.Wherein, reflecting plate this as a surface plate, on reflecting plate, there is the reflex reflector 301 of multiple projections, be distributed in the periphery of described LED installation portion 104, preferred, be to be distributed in the direction that described LED side direction 45 spends, and equate apart from the distance of adjacent LED.
Wherein, reflex reflector 301 is distributed on the lateral of LED, the forward that can not stop LED is luminous, can also connect and receive the light reflecting from picture exhibition direction, thereby the dark space weak in intensity of illumination forms a virtual illuminator, in the situation that strengthening lamp box entirety illumination, made up the illumination of dark space simultaneously, realize the even of overall illumination.
And projection reflex reflector 301 be positioned at outside effective lighting angle of described LED, make protruding reflex reflector can not hinder the light that LED directly sends, and the light reflecting from picture exhibition direction be reflected back to picture exhibition direction again.
Equally, in order to play the effect of even light, the shape of described reflex reflector 301, can be to be shape from the coarse to fine along protrusion direction, for example, can be at least a portion of spheroid or cone, like this, can on the side of reflex reflector, form an inclined-plane asymptotic apart from picture exhibition direction from the bottom to top, by asymptotic light path, the light reflection of diminuendo be returned to picture exhibition direction, even on the whole light.
In addition, according to embodiments of the invention, in described transparent front 101, can have multiple light shielding parts, position is relative with the LED installation portion on described reflecting plate.Owing to LED can being installed on the position of LED installation portion, therefore, the position luminosity relative with LED is the strongest, easily form bright spot, other relative regions can form dark space, therefore, to the covering of high light, can make lamp box brightness in the time of display frame more even by light shielding part.
Described light shielding part is preferably lenticular lenses or frosted structure, is all applicable to the present invention as long as certainly can carry out the structure of shading.
The height of described box body is preferably with the height of described lamp box and matches, and certainly can carry out relative set to the height of box body according to actual conditions, such as the height of box body is less than the height of lamp box, can be arranged in lamp box, novel this is not construed as limiting.
Described box body can have the installation portion being connected with described lamp box, by this installation portion, box body is arranged on to lamp box inside.Certainly can carry out relative set to the installation of box body according to actual conditions, such as this box body can be directly installed on the wall that lamp box depends on, this is novel is not construed as limiting this.
As shown in Figure 4, be the schematic diagram of the integral LED lamp box reflector that combines according to the reflector of LED lamp box shown in multiple Fig. 3 module.Wherein, comprise reflector module shown in 8 Fig. 3, these box body modules that accommodate reflecting plate can enter lamp box inside from lamp box bottom opening, can be arranged at lamp box inside by support each other, also can articulate or groove is connected to lamp box inside by installation portion, the height of each box body module and lamp box equal altitudes match, so that multiple box body is single parallel placement arranged side by side in lamp box inside, and when dismounting can take out from lamp box bottom is independent.
Further, the side of the groove of described reflecting plate can have many fins, and to increase the even light effect to secondary reflection light, these fins can be parallel with described groove notch edge, and on the stepped side that is distributed in described groove.Fig. 5 is schematic diagram (the wherein only conduct signal of stairstepping reflecting plate, the stairstepping of this reflecting plate can be according to the quantity of the LED of the size of reflecting plate and setting, extend), the ladder plane X wherein having in stairstepping reflecting plate, the light that transparent front aspect is reflected back is to try one's best light path retroeflection short to transparent front, if be not to form projection in described X portion, and be still the inclined-plane of cell body, so, light will be with larger light path oblique retroeflection to transparent front, exactly because and formed ladder plane, the angle of retroeflection light can be tried one's best to forward in transparent front, meanwhile, the region that distance L ED is far away, its light intensity is more weak, and due to the gradient of cell body, the region that light intensity is more weak, its stair-stepping convex plane can more early receive light and with shorter light path retroeflection light, therefore, further play even light effect.
Stair-stepping convex plane is only area in order to control sensitive surface or height, and the area of sensitive surface and be highly all to have difference according to situation on the spot, stairstepping is only preferred embodiment.
The above; be only the preferably specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any people who is familiar with this technology is in the disclosed technical scope of the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (9)
1. a LED lamp box, comprise the LED reflector in lamp box outside framework and outside framework, described LED reflector is made up of multiple independently detachable reflector modules, it is characterized in that, each reflector module comprises a box body, and described box body has a transparent front and a bonnet; In described box body, be provided with at least one reflecting plate, the reflecting surface of described reflecting plate is relative with described transparent front; On described reflecting plate, have multiple LED installation portions, reflecting plate has multiple grooves, and described LED installation position is in the bottom of described groove; The bonnet of described box body has a base plate, described base plate has multiple grooves, position is corresponding with described reflecting plate groove, and the bottom of described reflecting plate groove is contained in the groove of described bonnet base plate, and the side of described reflecting plate groove is conflicted and supported by the notch of described bonnet bottom plate groove.
2. lamp box as claimed in claim 1, is characterized in that, described transparent front is all-transparent or translucent protecgulum.
3. lamp box as claimed in claim 1, is characterized in that, described transparent front is softbox.
4. lamp box as claimed in claim 1, is characterized in that, the side of described reflecting plate groove has many fins.
5. lamp box as claimed in claim 4, is characterized in that, described many fins are parallel with described reflecting plate groove notch edge, and on the stepped side that is distributed in described reflecting plate groove.
6. lamp box as claimed in claim 1, is characterized in that, the cross section of described reflecting plate is trapezoidal waveform.
7. lamp box as claimed in claim 6, is characterized in that, the base of described trapezoidal wave and the angle of side are not less than the lighting angle of LED.
8. lamp box as claimed in claim 1, is characterized in that, has multiple light shielding parts in described transparent front, and position is relative with the LED installation portion on described reflecting plate.
9. lamp box as claimed in claim 1, is characterized in that, has the reflex reflector of multiple projections on described reflecting plate, is distributed in the periphery of described LED installation portion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110133385.5A CN102278625B (en) | 2011-04-20 | 2011-05-23 | LED lamp box |
| PCT/CN2012/075647 WO2012159545A1 (en) | 2011-05-23 | 2012-05-17 | Led light box |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110098942.4 | 2011-04-20 | ||
| CN201110098942 | 2011-04-20 | ||
| CN201110133385.5A CN102278625B (en) | 2011-04-20 | 2011-05-23 | LED lamp box |
Publications (2)
| Publication Number | Publication Date |
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| CN102278625A CN102278625A (en) | 2011-12-14 |
| CN102278625B true CN102278625B (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110133385.5A Expired - Fee Related CN102278625B (en) | 2011-04-20 | 2011-05-23 | LED lamp box |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012159545A1 (en) * | 2011-05-23 | 2012-11-29 | 北京莱易龙光电科技有限公司 | Led light box |
| CN103062710B (en) * | 2011-10-18 | 2015-04-29 | 北京莱易龙光电科技有限公司 | Module type light source box device for light box |
| CN103244861B (en) * | 2012-02-03 | 2015-11-25 | 北京莱易龙光电科技有限公司 | A kind of light source module for LED case |
| CN117249414A (en) * | 2023-08-31 | 2023-12-19 | 雅昌文化(集团)有限公司 | Artistic image color evaluation light source system |
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| CN201739803U (en) * | 2010-05-12 | 2011-02-09 | 锐光照明系统（上海）有限公司 | LED lamp-box light source system |
| CN202140978U (en) * | 2011-04-20 | 2012-02-08 | 王默文 | Reflector system used for light-emitting diode (LED) lamp box |
| CN202144982U (en) * | 2011-04-20 | 2012-02-15 | 王默文 | LED reflector module used for lamp house |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07263753A (en) * | 1994-03-23 | 1995-10-13 | Kimura Denki Kk | Led surface illuminator |
| JP2005000495A (en) * | 2003-06-13 | 2005-01-06 | Dragon:Kk | Display device for game machine |
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2011
- 2011-05-23 CN CN201110133385.5A patent/CN102278625B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201739803U (en) * | 2010-05-12 | 2011-02-09 | 锐光照明系统（上海）有限公司 | LED lamp-box light source system |
| CN202140978U (en) * | 2011-04-20 | 2012-02-08 | 王默文 | Reflector system used for light-emitting diode (LED) lamp box |
| CN202144982U (en) * | 2011-04-20 | 2012-02-15 | 王默文 | LED reflector module used for lamp house |
Non-Patent Citations (2)
| Title |
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| JP特开2005-495A 2005.01.06 |
| JP特开平7-263753A 1995.10.13 |
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