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CN202230682U - LED (light-emitting diode) indoor screen - Google Patents

LED (light-emitting diode) indoor screen Download PDF

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Publication number
CN202230682U
CN202230682U CN2011203286750U CN201120328675U CN202230682U CN 202230682 U CN202230682 U CN 202230682U CN 2011203286750 U CN2011203286750 U CN 2011203286750U CN 201120328675 U CN201120328675 U CN 201120328675U CN 202230682 U CN202230682 U CN 202230682U
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CN
China
Prior art keywords
led
display unit
led display
indoor screen
fore shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011203286750U
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Chinese (zh)
Inventor
刘联现
吴振志
吴涵渠
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Shenzhen Aoto Electronics Co Ltd
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Shenzhen Aoto Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Priority to CN2011203286750U priority Critical patent/CN202230682U/en
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Publication of CN202230682U publication Critical patent/CN202230682U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses an LED (light-emitting diode) indoor screen which comprises a plurality of LED display unit boxes and a precise connecting device, wherein each of the LED display unit boxes comprises a box framework, a PCB (printed circuit board), a power supply and a plurality of LEDs, the box framework comprises a front aluminum shell and a rear aluminum shell, and the inside surface of the front shell and the rear shell are enclosed to form a containing space; and one LED display unit box and the box framework of the LED display unit box are precisely spliced with the box framework of the adjacent LED display unit box. In the LED indoor screen adopting the technical scheme, as the box framework is provided with the front aluminum shell and the rear aluminum shell, and the adjacent LED display unit boxes are precisely spliced by the precise connecting device, the assembly precision can be ensured, and the display quality can be ensured as well. Furthermore, the front aluminum shell and the rear aluminum shell are efficient in heat transfer and can be cooled silently without the use of a fan, so that the requirement of the LED indoor screen on low noise can be met.

Description

The indoor screen of a kind of LED
Technical field
The utility model relates to the LED display technical field, is specifically related to the indoor screen of a kind of LED.
Background technology
LED display has been widely used in various occasions as the good panel display screen of a kind of display effect at present, comprises indoor, half indoor and outdoors.And the application of indoor scenarios only is common at present: City Hall, fair, news briefing, concert venue or the like.Everybody can find that above occasion generally has the bigger interior space, and the big inadequately occasion in space in the multicell more, the main now still LCD display that adopts, less employing LED display.This is because in the occasion of these less interior spaces, though requiring of the more outdoor occasion of classification of waterproof is low, receive the restriction of place size, to technical parameters such as the display effect of LED display, noises higher requirement must be arranged.
The LED display that adopts the three-in-one packaged LED technology of SMD (Surface Mounted Devices surface mount) to make at present, its pixel interval can reach 3mm to 4mm, like this, even display screen body size not quite also can satisfy the display requirement of high definition.But the led display unit casing of small pixel dot spacing when splicing assembled LED display screen, also must have higher requirement to splicing accuracy.And the casing of LED display adopts sheet metal box body more at present, and itself promptly there is rigging error in sheet metal box body, so be difficult to satisfy splicing accuracy owing to make the restriction of precision.Even in fact adopt the body structure of advanced sheet metal component and machined piece combination, also be difficult to reach pixel interval requirement to the box body splicing precision when 3mm to 4mm, therefore need to improve.
The utility model content
The utility model technical matters to be solved provides a kind of indoor screen of LED of accurate assembly unit, when the led display unit box body splicing that satisfies the small pixel dot spacing becomes the indoor screen of LED, to the requirement of splicing precision.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
The indoor screen of a kind of LED comprises a plurality of led display unit casings and accurate coupling arrangement; Said led display unit casing comprises box frame, pcb board, power supply and some LED, and said box frame comprises aluminium matter fore shell and aluminium matter back cover, and the inner surface of said fore shell and back cover surround the formation spatial accommodation; Said led display unit casing is with its box frame, and the indoor screen of said LED is formed in the accurate splicing of box frame of the led display unit casing that is adjacent through said accurate coupling arrangement.
In the optimized technical scheme, said accurate coupling arrangement comprises web joint and at least two group fastening assemblies; The two ends of said web joint respectively are fixedly connected with a led display unit casing through at least one group of said fastening assembly.
Further in the optimized technical scheme, said fastening assembly comprises studs and the wing nut that cooperates with said studs; Said web joint is provided with stud bolt hole; The said studs in assembling back is threaded with the led display unit casing with the screw thread of one of which end, after studs runs through said web joint through stud bolt hole, screws with the screw thread and the said wing nut of its other end.
Further in the optimized technical scheme, said accurate coupling arrangement also comprises reference column, and correspondence is provided with the reference column hole on the said web joint.
Further in the optimized technical scheme, said reference column hole is a bellmouth, and said reference column hole is a bellmouth; Accordingly, the part that cooperates with the reference column hole of said reference column top also is cone-shaped.
In the optimized technical scheme, said pcb board is arranged on the outside of said fore shell, and said some led array are in the outer surface of pcb board, and the inner surface of pcb board is provided with the IC chip; Said power supply is positioned at said spatial accommodation.
Further in the optimized technical scheme, the outer surface of said fore shell is provided with the heat radiation rib with the corresponding applying of said IC chip; And be provided with the thermal conductive silicon glue-line between said heat radiation rib and the said IC chip.
Further in the optimized technical scheme, said fore shell is provided with some heat radiator; And said heat radiator is uniformly distributed in the inner surface periphery of said fore shell.
Further in the optimized technical scheme, said back cover comprises bottom surface and the sidewall that is connected with said bottom edge; Said power supply has main heating face and auxilliary heating face, and power supply is close to the back cover bottom surface with its main heating face and is provided with, and near said sidewall setting, and said sidewall near the auxilliary heating face of power supply is provided with some louvres with its auxilliary heating face.
Further in the optimized technical scheme, with the auxilliary heating face of said power supply near sidewall on the relative sidewall, also be provided with some louvres.
The beneficial effect of the utility model is:
Because the box frame of led display unit casing has adopted the fore shell of aluminium matter and the back cover of aluminium matter; And further adopt accurate coupling arrangement with the accurate splicing of adjacent led display unit casing; Form the indoor screen of said LED, thereby can guarantee splicing accuracy, guarantee display quality.And the heat transfer efficiency of aluminium matter fore shell and back cover is high, can realize the quiet heat radiation of no fan, thereby satisfy the needs of the indoor screen of LED to low noise.
Below in conjunction with accompanying drawing the utility model is done further to describe in detail.
Description of drawings
Fig. 1 is the structural representation of led display unit casing in the utility model embodiment;
Fig. 2 is the exploded view of led display unit casing in the utility model embodiment;
Fig. 3 is another exploded view of led display unit casing in the utility model embodiment;
Fig. 4 is the structural representation of fore shell in the utility model embodiment, and shows the structure of its front surface;
Fig. 5 is another structural representation of fore shell in the utility model embodiment, and shows the structure on surface thereafter;
Fig. 6 is the structural representation of back cover in the utility model embodiment;
Fig. 7 is the structural representation of two led display unit casings assembly unit in the utility model embodiment;
Fig. 8 is an A place enlarged drawing among Fig. 7;
Fig. 9 is the exploded view of accurate coupling arrangement among the utility model embodiment.
Embodiment
The utility model embodiment LED display has at first adopted a kind of brand-new led display unit casing.The structure of this led display unit casing 100 such as Fig. 1 comprise: fore shell 110, back cover 120 to shown in Figure 3.The back surface and the back cover 120 of fore shell 110 surround, and form the box frame with spatial accommodation (not shown), and the front surface of fore shell 110 is provided with pcb board 130.
In the present embodiment, diverse with existing sheet metal structural casing is that machine work formed (fore shell 110 also can directly form through the aluminium machine work) after fore shell 110 and back cover 120 adopted the whole punching press of aluminium.Removably connect through the corresponding locking member of being located at back cover 120 edges between fore shell 110 and the back cover 120, constitute box frame.Particularly, its locking member is a screw in the present embodiment.Because fore shell 110 all is an aluminium matter with back cover 120, thereby heat transfer efficiency is high, for the quiet heat radiation of no fan provides possibility.
In the present embodiment, pcb board 130 unites two into one with the LED lamp plate, and pcb board 130 outside side arrays have some LED lamps, then is provided with the IC chip and the interlock circuit of the said LED lamp of control on the pcb board inner surface.Because LED lamp and IC chip are heater element, for strengthening heat radiation, like Fig. 1 and shown in Figure 5, fore shell 110 back marginal surfaces are provided with some heat radiator 111.Heat radiator 111 can effectively distribute the part heat that LED lamp and IC chip distribute.In the present embodiment, fore shell 110 is square tabular structure, and the middle part, surface surrounds with said back cover 120 thereafter, and then surperficial edge then is densely covered with said heat radiator 111, and like this, heat outwards distributes around fore shell 110 simultaneously, and radiating rate is fast, and efficient is high.
Like Fig. 1 to 3 and shown in Figure 6, in the spatial accommodation between said fore shell 110 and the back cover 120, being provided with can be to the power supply 140 of pcb board 130 power supply, but and on the back cover 120 position of corresponding power 140 be provided with the louvre 121 that power supply source 140 heats distribute.
In the utility model, corresponding radiator structure is set, in time the heat in the casing is distributed, thereby guarantee temperature equalization in the led display unit casing 100 to being positioned at diverse location and the different device of the degree of heat on the led display unit casing 100.
As shown in Figure 4, the front surface of fore shell 110 is provided with corresponding many heat radiation ribs 112 of fitting with said IC chip.Heat radiation rib 112 is set, has not only increased the area of dissipation of fore shell 110, key is to make and the IC chip of its applying, can directly through it most of heat be passed to fore shell 110 rapidly, thereby distribute the heat of IC chip fast and efficiently.
Further, as a prioritization scheme of present embodiment, be provided with thermal conductive silicon glue-line (not shown) between heat radiation rib 112 and the IC chip.Form this middle conductor of thermal conductive silicon glue-line through between heat radiation rib 112 and IC chip, applying heat conductive silica gel, the heat on the IC chip is distributed through fore shell 110, heat transfer efficiency improves greatly.
Like Fig. 1 to 3 and shown in Figure 6, back cover 120 comprises the sidewall 122 that four inclinations enclose, and back cover bottom surface 123.Back cover 120 is the middle part, back surface that cover shape button is located at fore shell 110, and power supply 140 is located in the spatial accommodation and near sidewall 122 places of back cover 120, said some louvres 121 are located on the sidewall 122 near power supply 140 auxilliary heating faces.In the optimized technical scheme, the main heating face of power supply 140 is close to back cover bottom surface 123 and is provided with, and its auxilliary heating face is near a sidewall 122 of back cover 120.Because the area of back cover bottom surface 123 is bigger; The back cover bottom surface 123 of the most of logical peraluminous back cover 120 of the heat that power supply 140 distributes distributes fast; The part heat is then in the air of radiation to spatial accommodation, and exhales through the louvre on the sidewall 122 121.In the optimized technical scheme, also be the auxilliary heating faces of power supply 140 near the relative sidewall 122 of sidewall 122 on some louvres 121 also are set, like this can be so that the better convection current of the hot-air in the spatial accommodation, so that radiating effect is better.
To sum up; In the present embodiment; During 100 work of led display unit casing, its radiating principle is: the major part of the IC chip institute thermal value on the pcb board 130 is passed to fore shell 110 through heat conductive silica gel fast, and exhales a part through fore shell 110 and surperficial thereafter heat radiator 111; Simultaneously; Because fore shell 110 adopts aluminium matter to become; The aluminium good heat-transfer; So the heat in the closed region of the formation that fore shell 110 and pcb board 130 surround can lead to peraluminous fore shell 110 and effectively pass,, can the normal demonstration of LED lamp not impacted so the closed region is uniform low-temperature spaces in the led display unit casing 100; It is more concentrated to be positioned at the heat that the power supply 140 of the spatial accommodation that fore shell 110 and back cover 120 enclose sends; It is the high-temperature region in the led display unit casing 100; The heat that power supply 140 sends utilizes the bottom surface of back cover 120 directly to distribute on the one hand; Utilize louvre 121 heat loss through convection on the sidewall 122 of back cover 120 on the other hand, thereby high-temperature region and the temperature difference of low-temperature space in the led display unit casing 100 are reduced.Above-mentioned radiator structure; Utilize the different radiating path that the heat of two higher warm areas in the led display unit casing is distributed, reduced the temperature difference between the contiguous viewing area, thereby under the prerequisite of no fan; Also can guarantee display quality, and then realize quiet heat radiation.
What more than describe is the led display unit casing 100 of the utility model embodiment; Because a kind of LED display of the utility model embodiment is spliced by a plurality of above-mentioned led display unit casing 100 precisions, so below emphasis is described the precision splicing between the led display unit casing 100.
Like Fig. 7 and shown in Figure 8; The LED display of the utility model embodiment; Detachably be fixedly connected through the accurate coupling arrangement 300 of at least two groups between its two adjacent LEDs display unit box 100; Thereby can guarantee the splicing precision between each led display unit casing 100, guarantee display quality.
The concrete composition of said accurate coupling arrangement 300 is as shown in Figure 8, comprises web joint 310 and at least two group fastening assemblies; The two ends of web joint 310 respectively are fixedly connected with a led display unit casing 100 through at least one group of fastening assembly, thereby two led display unit casings 100 are coupled together.Web joint 310 adopts aluminium sheet in this embodiment, it has enough intensity, and weight is lighter; Certainly, if do not consider weight, also can adopt corrosion resistant plate or the enough materials of other intensity.
Particularly, fastening assembly comprises studs 322 and the wing nut 323 that cooperates with studs 322 in this embodiment.Said studs 322 is threaded with the edge on surface, led display unit casing 100 fore shells, 110 back with the screw thread of one of which end; After assembling back studs 322 runs through said web joint 310 through stud bolt hole 324; Screw thread and said wing nut 323 with its other end screw, thereby can web joint 310 and led display unit casing 100 be locked.
In the optimized technical scheme; Said accurate coupling arrangement 300 also comprises reference column 321; Correspondence is provided with reference column hole 311 on the said web joint 310, and reference column 321 cooperates with reference column hole 311, can be so that better locate between web joint 310 and the led display unit casing 100.
In the said structure; Adopt reference column 321 to position earlier; Be locked through studs 322 and wing nut 323 again; Guaranteed that not only led display unit casing 100 effectively locatees, reached the purpose of accurate assembling, made things convenient for the demolition, installation of adjacent LED display unit box 100 simultaneously; And owing to be fixedly connected respectively through two groups of fastening assemblies 320 between the adjacent LED display unit box 100, so the demolition, installation of arbitrary led display unit casing 100 do not influence the use of other led display unit casing 100.
As the further prioritization scheme of present embodiment, reference column hole 311 is a bellmouth, and has two, lays respectively at the both sides of stud bolt hole 324, and accordingly, the part that reference column 321 tops cooperate with reference column hole 311 also is cone-shaped.Adopt the reference column 321 of reference column hole 311 fit taper of this taper, when reference column 321 inserts, can realize not having the gap between the two and cooperate, locating effect is better.
In the present embodiment; The implementation process that LED display connects group screen is following: led display unit casing 100 is pieced together in together by desired location; Fixed connecting plate 310 is placed in corresponding position at two adjacent LED display unit boxes, 100 fore shells 110; Reference column 321 is inserted corresponding reference column hole 311, and be locked through wing nut 323.Like this; Under the fastening acting force of wing nut 323 and studs 322; Reference column hole 311 through fixed connecting plate 310 upper conical cooperates accurately location of realization with the no gap of 321 of reference columns, thereby reaches the effect of led display unit casing 100 accurate group screens.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.

Claims (10)

1. indoor screen of LED; Comprise a plurality of led display unit casings; Said a plurality of led display unit box body splicing is formed the indoor screen of said LED, and said led display unit casing comprises box frame, pcb board, power supply and some LED, it is characterized in that; Said box frame comprises aluminium matter fore shell and aluminium matter back cover, and the inner surface of said fore shell and back cover surround the formation spatial accommodation; The indoor screen of said LED also comprises a plurality of accurate coupling arrangements; Said led display unit casing is with its box frame, and the indoor screen of said LED is formed in the accurate splicing of box frame of the led display unit casing that is adjacent through said accurate coupling arrangement.
2. the indoor screen of a kind of LED as claimed in claim 1 is characterized in that, said accurate coupling arrangement comprises web joint and at least two group fastening assemblies; The two ends of said web joint respectively are fixedly connected with a led display unit casing through at least one group of said fastening assembly.
3. the indoor screen of a kind of LED as claimed in claim 2 is characterized in that said fastening assembly comprises studs and the wing nut that cooperates with said studs; Said web joint is provided with stud bolt hole; The said studs in assembling back is threaded with the led display unit casing with the screw thread of one of which end, after studs runs through said web joint through stud bolt hole, screws with the screw thread and the said wing nut of its other end.
4. the indoor screen of a kind of LED as claimed in claim 2 is characterized in that said accurate coupling arrangement also comprises reference column, and correspondence is provided with the reference column hole on the said web joint.
5. the indoor screen of a kind of LED as claimed in claim 4 is characterized in that said reference column hole is a bellmouth, and said reference column hole is a bellmouth; Accordingly, the part that cooperates with the reference column hole of said reference column top also is cone-shaped.
6. like any indoor screen of described a kind of LED in the claim 1 to 5, it is characterized in that said pcb board is arranged on the outside of said fore shell, and said some led array are in the outer surface of pcb board, the inner surface of pcb board is provided with the IC chip; Said power supply is positioned at said spatial accommodation.
7. the indoor screen of a kind of LED as claimed in claim 6 is characterized in that the outer surface of said fore shell is provided with the heat radiation rib with the corresponding applying of said IC chip; And be provided with the thermal conductive silicon glue-line between said heat radiation rib and the said IC chip.
8. the indoor screen of a kind of LED as claimed in claim 6 is characterized in that said fore shell is provided with some heat radiator; And said heat radiator is uniformly distributed in the inner surface periphery of said fore shell.
9. the indoor screen of a kind of LED as claimed in claim 6 is characterized in that said back cover comprises bottom surface and the sidewall that is connected with said bottom edge; Said power supply has main heating face and auxilliary heating face, and power supply is close to the back cover bottom surface with its main heating face and is provided with, and near said sidewall setting, and said sidewall near the auxilliary heating face of power supply is provided with some louvres with its auxilliary heating face.
10. the indoor screen of a kind of LED as claimed in claim 9 is characterized in that, with the auxilliary heating face of said power supply near sidewall on the relative sidewall, also be provided with some louvres.
CN2011203286750U 2011-09-02 2011-09-02 LED (light-emitting diode) indoor screen Expired - Fee Related CN202230682U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203286750U CN202230682U (en) 2011-09-02 2011-09-02 LED (light-emitting diode) indoor screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203286750U CN202230682U (en) 2011-09-02 2011-09-02 LED (light-emitting diode) indoor screen

Publications (1)

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CN202230682U true CN202230682U (en) 2012-05-23

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103021285A (en) * 2012-12-03 2013-04-03 中山市晶威电子科技有限公司 A kind of LED display device
CN104599601A (en) * 2014-12-18 2015-05-06 利亚德光电股份有限公司 LED display screen and LED display unit connector
CN106448482A (en) * 2016-10-26 2017-02-22 深圳市洲明科技股份有限公司 LED display screen and box thereof
CN106448478A (en) * 2016-09-08 2017-02-22 深圳市洲明科技股份有限公司 LED display screen module bottom shell structure and forming method thereof
CN107146531A (en) * 2016-12-01 2017-09-08 长沙信元电子科技有限公司 A kind of automatic heat radiation die casting aluminium casing
US10248372B2 (en) 2013-12-31 2019-04-02 Ultravision Technologies, Llc Modular display panels
US10373535B2 (en) 2013-12-31 2019-08-06 Ultravision Technologies, Llc Modular display panel
CN110246429A (en) * 2019-06-27 2019-09-17 深圳市科伦特电子有限公司 A kind of LED display terminal
US10706770B2 (en) 2014-07-16 2020-07-07 Ultravision Technologies, Llc Display system having module display panel with circuitry for bidirectional communication
US10891881B2 (en) 2012-07-30 2021-01-12 Ultravision Technologies, Llc Lighting assembly with LEDs and optical elements

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10891881B2 (en) 2012-07-30 2021-01-12 Ultravision Technologies, Llc Lighting assembly with LEDs and optical elements
CN103021285A (en) * 2012-12-03 2013-04-03 中山市晶威电子科技有限公司 A kind of LED display device
US10871932B2 (en) 2013-12-31 2020-12-22 Ultravision Technologies, Llc Modular display panels
US10248372B2 (en) 2013-12-31 2019-04-02 Ultravision Technologies, Llc Modular display panels
US10373535B2 (en) 2013-12-31 2019-08-06 Ultravision Technologies, Llc Modular display panel
US10380925B2 (en) 2013-12-31 2019-08-13 Ultravision Technologies, Llc Modular display panel
US10410552B2 (en) 2013-12-31 2019-09-10 Ultravision Technologies, Llc Modular display panel
US10741107B2 (en) 2013-12-31 2020-08-11 Ultravision Technologies, Llc Modular display panel
US10540917B2 (en) 2013-12-31 2020-01-21 Ultravision Technologies, Llc Modular display panel
US10706770B2 (en) 2014-07-16 2020-07-07 Ultravision Technologies, Llc Display system having module display panel with circuitry for bidirectional communication
CN104599601A (en) * 2014-12-18 2015-05-06 利亚德光电股份有限公司 LED display screen and LED display unit connector
CN106448478A (en) * 2016-09-08 2017-02-22 深圳市洲明科技股份有限公司 LED display screen module bottom shell structure and forming method thereof
CN106448482A (en) * 2016-10-26 2017-02-22 深圳市洲明科技股份有限公司 LED display screen and box thereof
CN107146531A (en) * 2016-12-01 2017-09-08 长沙信元电子科技有限公司 A kind of automatic heat radiation die casting aluminium casing
CN110246429A (en) * 2019-06-27 2019-09-17 深圳市科伦特电子有限公司 A kind of LED display terminal

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Granted publication date: 20120523

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