EP3568845A1 - Method for creating the elements of a digital display panel - Google Patents

Method for creating the elements of a digital display panel

Info

Publication number
EP3568845A1
EP3568845A1 EP18702746.1A EP18702746A EP3568845A1 EP 3568845 A1 EP3568845 A1 EP 3568845A1 EP 18702746 A EP18702746 A EP 18702746A EP 3568845 A1 EP3568845 A1 EP 3568845A1
Authority
EP
European Patent Office
Prior art keywords
cabinets
uprights
necessary
determining
size
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.)
Granted
Application number
EP18702746.1A
Other languages
German (de)
French (fr)
Other versions
EP3568845B1 (en
Inventor
William DULIEU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Prismaflex International SA
Original Assignee
Prismaflex International SA
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
Publication date
Application filed by Prismaflex International SA filed Critical Prismaflex International SA
Publication of EP3568845A1 publication Critical patent/EP3568845A1/en
Application granted granted Critical
Publication of EP3568845B1 publication Critical patent/EP3568845B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules

Definitions

  • the invention relates to the field of display panels, and more specifically digital display panels with light emitting diodes (LEDs).
  • LEDs light emitting diodes
  • the digital display panels are appreciated for the possibility they offer to allow an almost infinite change of images or messages to display.
  • These digital display panels comprise a plurality of light-emitting diodes, arranged in a matrix manner, and able to be individually illuminated according to the desired display.
  • These LEDs are integrated in the form of modules, each containing a few hundred LEDs, as described in US 5,949,581.
  • the dimensions of the display surface are multiples of the dimensions of a LED module.
  • the length of the display surface is a multiple of 40cm while the height of the display surface is a multiple of 50cm.
  • the modules are square, for example of dimensions 30 * 30cm or 40 * 40cm.
  • the supporting structure can be made by a frame forming the turn of the panel.
  • the modules are fixed to the frame via vertical and longitudinal risers.
  • each cabinet is formed by an external frame on which are fixed vertical and longitudinal uprights so as to support the modules.
  • a cabinet is defined as a structure carrying several modules of LEDs forming a box to integrate, on the rear panel of the LED modules, the elements necessary for the power supply and the cooling of the LED modules.
  • the cabinet structure is used to meet the integration and maintenance requirements of digital panels.
  • the digital panels integrate power supplies, control circuits and module cooling means.
  • the manufacture of a large panel by several cabinets allows to integrate, in each cabinet, a power supply, a control circuit, cooling means and maintenance access.
  • the supporting structure of the cabinets aims at ensuring the alignment of the cabinets between them and ensures the mechanical strength of the panel.
  • the supporting structure takes the form of a welded steel frame with beams to secure the cabinets.
  • each cabinet has a length of 1440 mm and a height of 864 mm or a length of 1440 mm and a length of 1152 mm.
  • the cabinets are then assembled on a supporting structure so that the total weight of this type of digital panel is close to 1 ton.
  • This method of producing a large digital panel has several disadvantages. Firstly, the use of standard cabinets limits the possible dimensions for the display surface and increases the time of completion of a panel because of the time of routing standard cabinets between the production site and the factory integration. Then, the volume and the weight of transport are very important. Finally, the presence of the supporting structure of the cabinets increases the size of the panel relative to the display surface and complicates the manufacture of the panel.
  • the structure formed by these amounts does not allow to directly maintain the LED modules and it is necessary to use a mounting panel LED modules made to measure by cutting a sheet metal plate.
  • This machining step annihilates some of the modularity of billboard manufacturing. Indeed, the machining of this sheet metal plate to form the mounting panel LED modules is almost as long as the realization of a cabinet from a welded structure.
  • the invention proposes a new method of producing the elements of a large digital display panel in which the cabinets are made to measure by integrating means for fixing the cabinets together so as to suppress the use of a support structure to secure the cabinets.
  • the entire cabinet structure is made by bolting aluminum profiles instead of a welded structure which allows the elements to be transported to the installation site of the panel and to easily mount the panel on site.
  • the Claimant has overcome significant technical bias by challenging the use of standard cabinets. Indeed, to meet all the constraints that rely on cabinets, the inventors have developed standard profiles to form a multitude of cabinets by simply cutting to the desired length.
  • the invention relates to a method for producing the elements of a digital display panel whose dimensions are greater than 2m by 3m, said method comprising the following steps:
  • determining the number of bars necessary to connect said uprights of said cabinets the size of said bars being selected according to said length of said standard modules, determining the number and type of securing elements necessary for fixing the uprights and the bars between them and for connecting said cabinets, said securing elements being of the screw / nut type,
  • the invention thus makes it possible to improve the manufacturing process of the elements of a digital display panel by using standard sections cut to size and connected by bolting instead of using standard welded cabinets assembled on a supporting structure. .
  • Standard profiles are easier to store than cabinets of the prior art.
  • the integration factories did not have the possibility of storing all the different sizes of cabinets, it is now possible to store the standard profiles and to cut the profiles as needed.
  • the integration factories can therefore make a custom panel very quickly without being dependent on the transport and manufacturing time of a standard cabinet requiring many manufacturing steps (cutting, bending, shearing, welding).
  • the aluminum profiles are fixed by means of reversible fasteners of the screw and nut type.
  • the elements can be mounted directly on the installation site instead of mounting the cabinets on the production site facilitating, thus, transport.
  • the ability to mount and dismount panel elements also facilitates maintenance.
  • the step of determining the number and size of the vertical uprights necessary to form an internal structure of said cabinets is achieved by seeking an alternation of two types of vertical uprights, the two types of uprights having characteristics. structurally distinct resistance. This embodiment makes it possible to improve the mechanical strength of the panel.
  • the step of producing said frame amounts by an aluminum profile is made with a cutting angle substantially equal to 45 ° with respect to the length of said profile. This embodiment makes it possible to form salient angles for the frame of the cabinets.
  • the steps of producing the uprights are performed by laser cutting. This embodiment makes it possible to obtain a very high precision of cutting. Thus, it is possible to obtain sealed contact surfaces at the connections between the different elements.
  • said frame amounts comprise a groove for gripping at least one sliding door.
  • Standard cabinets use hinged doors. However, when a cabinet is mounted in front of a pole, it is often impossible to open the door completely. Thus, this embodiment makes it possible to simplify the opening of the cabinet by using sliding doors mounted in grooves of the frame posts.
  • said method comprises the following steps:
  • the sliding doors are made by three sections assembled together.
  • said method comprises the following steps: determining the number and size of the fans necessary for cooling said cabinets, and machining said frame amounts so as to arrange an air inlet for said fans.
  • This embodiment aims to anticipate the position of the fans so as to effectively cool the electronic components of the panel.
  • the determination of the number and size of the fans can be achieved by modeling the heat exchange of the panel in operation.
  • the fans are regularly spaced the length or two lengths of a module.
  • said method comprises a step of mounting said fans on said frame amounts. Indeed, even if the elements of the panel are sent to the disassembled site, it is possible to mount certain elements before sending so as to simplify the assembly on the site.
  • FIGS. 1 to 7 represent:
  • FIG. 1 a flowchart of a method of producing the elements of a digital display panel according to one embodiment of the invention
  • FIG. 2 a schematic front view of the cutting of a display surface of a digital display panel according to one embodiment of the invention
  • FIG. 3 a perspective view of the back of a digital display panel according to one embodiment of the invention.
  • FIG. 4 a perspective view of a structure of a digital display panel according to one embodiment of the invention.
  • FIGS. 6a and 6b two perspective views of the two types of packaging of the elements of a digital display panel according to two embodiments of the invention.
  • FIG. 7a to 7c three steps of mounting a cabinet structure of a digital display panel according to one embodiment of the invention.
  • Figure 1 illustrates an embodiment of the method of producing the elements of a digital display panel 10 of large size, that is to say with dimensions greater than 2m by 3m.
  • the first step 101 consists in determining the dimensions h1, 11 of a display surface 11 of the panel 10 as a function of an intended application.
  • the display surface 11 corresponds to the surface of the panel covered with LEDs as opposed to the parts forming the turn of the panel 10 and ensuring the maintenance of the panel 10.
  • the intended application refers to instructions or specification. For example, the specifications incorporate the desired dimensions of the area of
  • LEDs as well as the interval ("pitch") between LEDs and the light and / or electrical power of the LEDs.
  • the compatible standard LED modules and to calculate the dimensions of the display surface 11 so that the display surface 11 is made by juxtapositions of standard modules 12 of LEDs.
  • the standard modules 12 compatible have dimensions h2, 12 of 40cm by 40cm.
  • For a second zone of LEDs of 10.5m by 3m it is possible to constitute a display surface 11 of 10.4m by 3.2m by juxtaposing 8 rows of 26 modules 12.
  • FIG. 2 illustrates a strategy of cutting the display surface 11 into four cabinets 13.
  • the two upper cabinets 13 support 9 rows of 12 modules 12 whereas the two lower cabinets 13 support 7 rows of 12 modules 12. the cutting of the display surface 11, it is not necessary that the cabinets 13 are identical.
  • the display surface 11 can be divided into two cabinets 13 with 4 lines of 16 Modules 12.
  • the display surface 11 can be divided into four cabinets 13 of 4 lines of 13 modules 12.
  • the display surface 11 can be cut into six cabinets 13 with 5 lines of 12 modules. 12.
  • the structure of the panel 10 is similar to that illustrated in Figures 3 to 5.
  • the digital panel 10 has three support posts 27 planted in the ground. These posts support two cabinets 13 juxtaposed according to the first encrypted example.
  • Each cabinet 13 has a parallelepipedal structure formed by frame uprights 14 supporting vertical uprights 15, 16 and bars 17 fixed to each other by bolting by means of securing elements 25.
  • the uprights 15, 16 have an alternation of 16 thick uprights and 16 uprights so as to support the LED modules 12 while limiting the weight of the panel 10.
  • Each cabinet 13 incorporates a plurality of modules 12, each module 12 incorporating a conventional array of light-emitting diodes arranged on a front face of the cabinet 13 in rows and columns.
  • Each cabinet 13 makes it possible to arrange a volume at the rear face of each module 12 to dispose the power supplies and the control means of the modules 12.
  • This volume is delimited by the frame uprights 14 and sliding doors 20 to access the rear face of the modules 12.
  • Each door 20 is mounted in a groove 21 formed on the upper and lower frame amounts 14.
  • this volume is cooled by a flow of air generated by fans 19 mounted at each row of modules 12 on the lower frame amount 14.
  • the frame posts 14 are made by means of an extruded aluminum profile so as to form a double wall between the outside and the inside. of the panel 10.
  • Openings are provided on the lower upright to bring air between the outside and the fans 19.
  • the openings are provided with coalescing filters so as to capture moisture from the air passing therethrough.
  • the method comprises several steps 103, 104, 105, 106, 109 that can be performed simultaneously.
  • the panel 10 can be made numerically to define all the elements before proceeding to practical realization.
  • Step 103 aims to determine the nature and size of the frame amounts 14 according to the needs of the panel 10.
  • the strength of the panel 10 must be greater than that of a panel disposed in a building, it follows that the strength of the frame amounts 14 must be selected according to these mechanical strength constraints.
  • the nature of the frame uprights 14 may be determined to meet other constraints such as cost, light weight, corrosion resistance ...
  • the nature of the frame amounts 14 is determined by a set of criteria to meet the specifications. According to the invention, the frame amounts 14 are selected according to profiles in standard aluminum whose shape allows to meet the constraints of the specifications.
  • the size and the number of the amounts are determined according to the size and the number of cabinets 13 determined at the step 102.
  • these uprights 14 are made in step 107 by cutting the standard sections to the desired dimensions, for example by laser cutting.
  • the assembly of the uprights 14 is anticipated, so that the uprights are cut at 45 ° to form angles at the corners of the cabinets 13.
  • a similar step 104 is performed to determine the nature, number and size of the uprights 15, 16 as well as to perform, in step 108, the uprights 15, 16.
  • the step 105 aims to determine the nature, the number and the size of the bars 17 so as to use standard bars adapted to the dimensions of the standard modules 12.
  • the step 106 aims to determine the number and type of securing elements 25 necessary to fix the uprights 15, 16 and the bars 17 between them and to connect the cabinets 13.
  • the elements of the cabinets 13 are fixed by bolting and the securing elements 25 are of the screw / nut type.
  • the steps 109 and 110 aim at selecting and making the sliding doors 20.
  • the doors 20 are made from profiles cut according to the height of each cabinet 13.
  • the management of the air flows of the cabinets 13 can also be anticipated from the design, for example by a numerical model of airflow management. It is then possible, in a step 111, to determine the number, the size and the positioning of the fans 19 necessary for cooling the cabinets 13. If necessary, the frame amounts 14 can be machined, in a step 112, to create openings for arranging air inlets for the fans 19. Alternatively, the standard profiles forming the frame uprights 14 may directly include predetermined locations for the fans 19. It is also possible, in a step 113, to mount the fans 19 on the frame uprights 14 before transport.
  • a container 30 can easily contain all the elements of a panel 10 made according to the invention whereas the panels of the state of the art for the same dimensions require several similar containers.
  • each cabinet 13 When the elements are delivered to the installation site of the panel 10, the assembly of the structure of each cabinet 13 is made as illustrated in Figures 7a to 7c.
  • a first step illustrated in Figure 7a, the frame posts 14 of each cabinet 13 are assembled and bolted together.
  • a second step, illustrated in FIG. 7b the vertical uprights 15, 16 are bolted to the frame uprights 14 and then, in a third step illustrated in FIG. 7c, the bars 17 are bolted between the vertical uprights 15, 16 and the frame amounts 14.
  • the LED modules 12 can be mounted on the structure of each cabinet 13 and all the elements necessary for the operation of the panel 10, such as the fans 19, the power supplies, the central unit, the doors 20 ...
  • the LED modules 12 are directly fixed on the bars 17.
  • the bars 17 incorporate means for fixing the LED modules 12.
  • the bars 17 have two ends
  • the T-shaped end portion of each bar 17 has a bore for securing the bar 17 to an upright 14-16.
  • the T-shaped side portions of each bar 17 also comprise a bore for fixing a LEDs module 12.
  • securing elements 25 are provided for fixing the LEDs module. 12 with bores close to the frame amount 14.
  • the bars 17 thus make it possible to form the fixing structure of the LED modules 12 are to use an additional piece made to measure to the size of the panel 10 or the cabinet 13. Finally, the cabinets 13 are bolted together and mounted on the posts 27 as shown in Figure 3.
  • the invention thus proposes a new method of producing a digital display panel 10 of large dimensions by implementing standard aluminum profiles.
  • This design brings numerous advantages such as the reduction of the production time, the weight and the reduction of the bulk for storing or transporting the elements of the panel 10.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

The invention relates to a method for creating the elements of a large digital display panel, comprising the following steps: – determining (101) a display surface, – splitting (102) said display surface into multiple units, – determining (103) the number and size of the framing uprights of a frame of each unit, – determining (104) the number and the size of the vertical uprights of an internal structure of said units, – determining (105) the number of bars, – determining (106) the number and type of fastening elements, said fastening elements being of the nut-and-bolt type, – creating (107) said framing uprights using an aluminum profile, and – creating (108) the vertical uprights using an aluminum profile, – each profile being chosen from standard parts and, if necessary, cut to the desired dimension.

Description

PROCEDE DE REALISATION DES ELEMENTS D'UN PANNEAU D'AFFICHAGE DIGITAL  METHOD FOR PRODUCING THE ELEMENTS OF A DIGITAL DISPLAY PANEL
DOMAINE TECHNIQUE TECHNICAL AREA
L'invention se rattache au domaine des panneaux d'affichage, et plus précisément des panneaux d'affichages digitaux à diodes électroluminescentes (LEDs). The invention relates to the field of display panels, and more specifically digital display panels with light emitting diodes (LEDs).
A T ANTERIEUR BEFORE
De façon générale, les panneaux d'affichages digitaux sont appréciés pour la possibilité qu'ils offrent de permettre un changement quasi infini des images ou messages à afficher. Ces panneaux d'affichages digitaux comportent une pluralité de diodes électroluminescentes, disposées de façon matricielle, et aptes à être éclairés individuellement en fonction de l'affichage souhaité. Ces LEDs sont intégrées sous la forme de modules, renfermant chacun quelques centaines de LEDs, tel que décrit dans le document US 5 949 581. In general, the digital display panels are appreciated for the possibility they offer to allow an almost infinite change of images or messages to display. These digital display panels comprise a plurality of light-emitting diodes, arranged in a matrix manner, and able to be individually illuminated according to the desired display. These LEDs are integrated in the form of modules, each containing a few hundred LEDs, as described in US 5,949,581.
Pour former un panneau d'affichage digital, il est connu de monter plusieurs modules de LEDs sur une structure porteuse afin de former une surface d'affichage. Ainsi, les dimensions de la surface d'affichage sont des multiples des dimensions d'un module de LEDs. Par exemple, pour un module de longueur 40cm et de hauteur 50cm, la longueur de la surface d'affichage est un multiple de 40cm alors que la hauteur de la surface d'affichage est un multiple de 50cm. Classiquement, les modules sont carrés, par exemple de dimensions 30*30cm ou 40*40cm. To form a digital display panel, it is known to mount several LED modules on a carrier structure to form a display surface. Thus, the dimensions of the display surface are multiples of the dimensions of a LED module. For example, for a module 40cm long and 50cm high, the length of the display surface is a multiple of 40cm while the height of the display surface is a multiple of 50cm. Classically, the modules are square, for example of dimensions 30 * 30cm or 40 * 40cm.
Pour des panneaux de petites dimensions, c'est-à-dire inférieure à 2m sur 3m, la structure porteuse peut être réalisée par un cadre formant le tour du panneau. Les modules sont fixés sur le cadre par l'intermédiaire de montantes verticaux et longitudinaux. For panels of small dimensions, that is to say less than 2m by 3m, the supporting structure can be made by a frame forming the turn of the panel. The modules are fixed to the frame via vertical and longitudinal risers.
Cependant, ce type de structure n'est pas adapté pour les panneaux de plus grandes dimensions car les montants ne sont pas capables de soutenir le poids des modules sur de grandes longueurs. Ainsi, la fabrication de panneaux de grandes dimensions impose une structure distincte dans laquelle plusieurs cabinets sont assemblés sur une structure porteuse. Pour ce faire, chaque cabinet est formé par un cadre externe sur lequel sont fixés des montants verticaux et longitudinaux de sorte à soutenir les modules. Un cabinet est défini comme une structure porteuse de plusieurs modules de LEDs formant un caisson pour intégrer, sur la face arrière des modules de LEDs, les éléments nécessaires à l'alimentation et au refroidissement des modules de LEDs. However, this type of structure is not suitable for larger panels because the amounts are not able to support the weight of the modules over long distances. Thus, the manufacture of large panels requires a separate structure in which several cabinets are assembled on a supporting structure. To do this, each cabinet is formed by an external frame on which are fixed vertical and longitudinal uprights so as to support the modules. A cabinet is defined as a structure carrying several modules of LEDs forming a box to integrate, on the rear panel of the LED modules, the elements necessary for the power supply and the cooling of the LED modules.
La structure des cabinets est utilisée pour répondre aux contraintes d'intégration et de maintenance des panneaux digitaux. En effet, en plus des modules, les panneaux digitaux intègrent des alimentations, des circuits de commande et des moyens de refroidissement des modules. La fabrication d'un panneau de grande dimension par plusieurs cabinets permet d'intégrer, dans chaque cabinet, une alimentation, un circuit de commande, des moyens de refroidissement et un accès de maintenance. The cabinet structure is used to meet the integration and maintenance requirements of digital panels. In fact, in addition to the modules, the digital panels integrate power supplies, control circuits and module cooling means. The manufacture of a large panel by several cabinets allows to integrate, in each cabinet, a power supply, a control circuit, cooling means and maintenance access.
Cependant, ces cabinets sont particulièrement complexes à concevoir en raison du nombre d'éléments qu'ils intègrent et de la gestion des flux d'air pour refroidir correctement les modules. Il s'ensuit que des cabinets standards ont été développés avec des dimensions propres. Ces cabinets standards sont le fruit de longues années de recherches et permettent une optimisation du positionnement des différents éléments, de la gestion des flux d'air ou encore du positionnement d'au moins un accès de maintenance. Ces cabinets standards sont formés par une structure mécano-soudée en acier afin de répondre aux contraintes de résistante et d'étanchéité. La complexité de réalisation d'un cabinet est si importante qu'il n'existe pas de panneau de grandes dimensions qui ne soit réalisé avec des cabinets standards, sauf à engendrer des problématiques de coût ou de réalisations trop importantes. However, these cabinets are particularly complex to design because of the number of elements that they integrate and the management of the air flows to properly cool the modules. As a result, standard cabinets have been developed with their own dimensions. These standard cabinets are the result of years of research and allow optimization of the positioning of the various elements, the management of air flows or the positioning of at least one maintenance access. These standard cabinets are formed by a welded steel structure to meet the requirements of resistance and sealing. The complexity of realizing a firm is so important that there is no large panel that is made with standard cabinets, unless generating cost issues or achievements too important.
La structure porteuse des cabinets vise à garantir l'alignement des cabinets entre eux et assure la résistance mécanique du panneau. Généralement, la structure porteuse prend la forme d'un cadre mécano-soudée en acier avec des poutres pour assurer la fixation des cabinets. The supporting structure of the cabinets aims at ensuring the alignment of the cabinets between them and ensures the mechanical strength of the panel. Generally, the supporting structure takes the form of a welded steel frame with beams to secure the cabinets.
Pour réaliser un panneau de grande dimension, plusieurs cabinets standards sont sélectionnés de sorte à approcher les dimensions recherchées pour la surface d'affichage en fonction des dimensions possibles des cabinets standards. Les cabinets sont ensuite commandés puis les composants sont intégrés dans les cabinets en usine. Les cabinets sont ensuite assemblés entre eux sur la structure porteuse, puis une grue élève le panneau complet afin de le fixer sur un mât. To make a large panel, several standard cabinets are selected to approach the desired dimensions for the display surface according to the possible dimensions of standard cabinets. The cabinets are then ordered and the components are integrated into the cabinets in the factory. The cabinets are then assembled together on the supporting structure, then a crane raises the complete panel to fix it on a mast.
Par exemple, pour former un panneau digital de dimensions 2880 mm par 1920 mm pour une surface d'affichage de 5.8 m2, il est connu d'utiliser 4 cabinets disposés sur 2 lignes et 2 colonnes. Chaque cabinet présente alors une longueur de 1440 mm et une hauteur de 864 mm ou une longueur de 1440 mm et une longueur de 1152 mm. Les cabinets sont ensuite assemblés sur une structure porteuse de sorte que le poids total de ce type de panneau digital est proche de 1 tonne. For example, to form a digital panel of dimensions 2880 mm by 1920 mm for a display area of 5.8 m 2 , it is known to use 4 cabinets arranged on 2 rows and 2 columns. Each cabinet then has a length of 1440 mm and a height of 864 mm or a length of 1440 mm and a length of 1152 mm. The cabinets are then assembled on a supporting structure so that the total weight of this type of digital panel is close to 1 ton.
Cette méthode de réalisation d'un panneau digital de grande dimension présente plusieurs inconvénients. Tout d'abord, l'utilisation de cabinets standards limite les dimensions possibles pour la surface d'affichage et augmente le temps de réalisation d'un panneau en raison du temps d'acheminent des cabinets standards entre le site de production et l'usine d'intégration. Ensuite, le volume et le poids de transport sont très importants. Pour finir, la présence de la structure porteuse des cabinets augmente la taille du panneau par rapport à la surface d'affichage et complexifîe la fabrication du panneau. This method of producing a large digital panel has several disadvantages. Firstly, the use of standard cabinets limits the possible dimensions for the display surface and increases the time of completion of a panel because of the time of routing standard cabinets between the production site and the factory integration. Then, the volume and the weight of transport are very important. Finally, the presence of the supporting structure of the cabinets increases the size of the panel relative to the display surface and complicates the manufacture of the panel.
Il est connu du document US 2009/0289160 de former un panneau d'affichage à partir de montants découpés sur mesure en fonction des dimensions recherchées pour le panneau d'affichage. It is known from US 2009/0289160 to form a display panel from amounts cut to measure according to the desired dimensions for the display panel.
Cependant, la structure formée par ces montants ne permet pas de maintenir directement les modules de LEDs et il est nécessaire d'utiliser un panneau de montage des modules LEDs réalisé sur mesure par découpe d'une plaque de tôle. Cette étape d'usinage annihile une partie de la modularité de la fabrication du panneau d'affichage. En effet, l'usinage de cette plaque de tôle pour former le panneau de montage des modules LEDs est pratiquement aussi longue que la réalisation d'un cabinet à partir d'une structure mécano- soudée. However, the structure formed by these amounts does not allow to directly maintain the LED modules and it is necessary to use a mounting panel LED modules made to measure by cutting a sheet metal plate. This machining step annihilates some of the modularity of billboard manufacturing. Indeed, the machining of this sheet metal plate to form the mounting panel LED modules is almost as long as the realization of a cabinet from a welded structure.
En outre, cette plaque de tôle usinée est transportée en un seul bloc sur le site de montage du panneau d'affichage. Ainsi, le transport et le montage du panneau d'affichage reste une opération complexe. EXPOSE DE L'INVENTION In addition, this machined sheet metal plate is transported in a single block to the display panel mounting site. Thus, the transport and mounting of the billboard remains a complex operation. SUMMARY OF THE INVENTION
Pour remédier à ces inconvénients, l'invention propose un nouveau procédé de réalisation des éléments d'un panneau d'affichage digital de grandes dimensions dans lequel les cabinets sont réalisés sur mesure en intégrant des moyens de fixation des cabinets entre eux de sorte à supprimer l'utilisation d'une structure porteuse pour solidariser les cabinets. En outre, toute la structure des cabinets est réalisée par boulonnages de profilés aluminium au lieu d'une structure mécano-soudée ce qui permet de transporter les éléments sur le site d'installation du panneau et de monter facilement le panneau sur place. To remedy these drawbacks, the invention proposes a new method of producing the elements of a large digital display panel in which the cabinets are made to measure by integrating means for fixing the cabinets together so as to suppress the use of a support structure to secure the cabinets. In addition, the entire cabinet structure is made by bolting aluminum profiles instead of a welded structure which allows the elements to be transported to the installation site of the panel and to easily mount the panel on site.
Ce faisant, le Demandeur a vaincu un préjugé technique important en remettant en cause l'utilisation de cabinets standards. En effet, pour répondre à toutes les contraintes qui reposent sur les cabinets, les inventeurs ont mis au point des profilés standards permettant de former une multitude de cabinets par un simple découpage à la longueur recherchée. In doing so, the Claimant has overcome significant technical bias by challenging the use of standard cabinets. Indeed, to meet all the constraints that rely on cabinets, the inventors have developed standard profiles to form a multitude of cabinets by simply cutting to the desired length.
Pour limiter le nombre de pièces à découper, seuls les montants d'encadrement et verticaux sont taillés sur mesure alors que les barreaux sont choisis en fonction de la dimension des modules LEDs. A cet effet, l'invention concerne un procédé de réalisation des éléments d'un panneau d'affichage digital dont les dimensions sont supérieures à 2m par 3m, ledit procédé comportant les étapes suivantes : To limit the number of pieces to be cut, only the amounts of frame and vertical are cut to measure while the bars are chosen according to the dimension of the modules LEDs. To this end, the invention relates to a method for producing the elements of a digital display panel whose dimensions are greater than 2m by 3m, said method comprising the following steps:
- détermination d'une hauteur et d'une longueur d'une surface d'affichage dudit panneau en fonction d'une application envisagée, ladite hauteur et ladite longueur étant des multiples d'une hauteur et d'une longueur d'un module standard destiné à être juxtaposé plusieurs fois pour former ladite surface d'affichage,  determining a height and a length of a display surface of said panel according to an intended application, said height and said length being multiples of a height and a length of a standard module intended to be juxtaposed several times to form said display surface,
- découpage de ladite surface d'affichage en plusieurs cabinets de sorte que chaque cabinet comporte un nombre entier de modules standards,  - cutting said display surface into several cabinets so that each cabinet comprises an integer number of standard modules,
- détermination du nombre et de la taille des montants d'encadrement nécessaires pour former un encadrement de chaque cabinet,  - determination of the number and size of the amounts of supervision necessary to form a framework of each cabinet,
- détermination du nombre et de la taille des montants verticaux nécessaires pour former une structure interne desdits cabinets,  determining the number and the size of the vertical uprights necessary to form an internal structure of said cabinets,
- détermination du nombre de barreaux nécessaires pour relier lesdits montants desdits cabinets, la taille desdites barreaux étant sélectionnée en fonction de ladite longueur desdits modules standards, - détermination du nombre et du type d'éléments de solidarisation nécessaires pour fixer les montants et les barreaux entre eux et pour relier lesdits cabinets, lesdits éléments de solidarisation étant du type vis/écrou, determining the number of bars necessary to connect said uprights of said cabinets, the size of said bars being selected according to said length of said standard modules, determining the number and type of securing elements necessary for fixing the uprights and the bars between them and for connecting said cabinets, said securing elements being of the screw / nut type,
- réalisation desdits montants d'encadrement par un profilé en aluminium, et - réalisation des montants verticaux par un profilé en aluminium,  - Production of said frame amounts by an aluminum profile, and - realization of vertical uprights with an aluminum profile,
- chaque profilé étant choisi parmi des pièces standards et découpé si besoin à la dimension recherchée.  - Each profile being selected from standard parts and cut if necessary to the desired size.
L'invention permet ainsi d'améliorer le processus de fabrication des éléments d'un panneau d'affichage digital en utilisant des profilés standards découpés sur mesure et reliées par boulonnage au lieu d'utiliser des cabinets standards mécano-soudés assemblés sur une structure porteuse. Les profilés standards sont des éléments plus faciles à stocker que les cabinets de l'art antérieur. Alors que les usines d'intégration n'avaient pas la possibilité de stocker toutes les différentes tailles de cabinets, il est désormais envisageable de stocker les profilés standards et de découper les profilés selon les besoins. Les usines d'intégration peuvent donc réaliser un panneau sur mesure très rapidement sans être tributaires du délai de transport et de fabrication d'un cabinet standard demandant de nombreuses étapes de fabrication (découpe, pliage, cisaillage, soudage). The invention thus makes it possible to improve the manufacturing process of the elements of a digital display panel by using standard sections cut to size and connected by bolting instead of using standard welded cabinets assembled on a supporting structure. . Standard profiles are easier to store than cabinets of the prior art. While the integration factories did not have the possibility of storing all the different sizes of cabinets, it is now possible to store the standard profiles and to cut the profiles as needed. The integration factories can therefore make a custom panel very quickly without being dependent on the transport and manufacturing time of a standard cabinet requiring many manufacturing steps (cutting, bending, shearing, welding).
De plus, la structure acier des cabinets de l'état de la technique est remplacée par des profilés en aluminium, limitant ainsi le poids du panneau et facilitant le découpage des montants. In addition, the steel structure of the cabinets of the state of the art is replaced by aluminum profiles, thus limiting the weight of the panel and facilitating the cutting of the amounts.
Contrairement aux cabinets mécano-soudés de l'état de la technique, les profilés en aluminium sont fixés par des éléments de solidarisation réversibles de type vis et écrou. Il s'ensuit que les éléments peuvent être montés directement sur le site d'installation au lieu de réaliser un montage des cabinets sur le site de production facilitant, ainsi, le transport. Unlike state-of-the-art welded cabinets, the aluminum profiles are fixed by means of reversible fasteners of the screw and nut type. As a result, the elements can be mounted directly on the installation site instead of mounting the cabinets on the production site facilitating, thus, transport.
La capacité de montage et de démontage des éléments du panneau permet également de faciliter la maintenance. The ability to mount and dismount panel elements also facilitates maintenance.
Contrairement aux cabinets de l'état de la technique, il est désormais possible de changer une partie du cabinet suite à une catastrophe naturelle qui aurait endommagé la structure du panneau. En outre, certains modules LEDs permettent de réaliser un démontage par la face avant du panneau au moyen de petites vis disposées entre les LEDs. Cependant, il est extrêmement délicat d'intervenir sur les équipements disposés derrière les modules LEDs car la taille d'un module est souvent réduite, par exemple 30x30cm. L'invention permet également de démonter la structure, c'est-à-dire les barreaux lorsqu'un opérateur de maintenance intervient par la face avant. Selon un mode de réalisation, l'étape de détermination du nombre et de la taille des montants verticaux nécessaires pour former une structure interne desdits cabinets est réalisée en recherchant une alternance de deux types de montants verticaux, les deux types de montants verticaux ayant des caractéristiques de résistance structurellement distinctes. Ce mode de réalisation permet d'améliorer la résistance mécanique du panneau. Unlike state-of-the-art cabinets, it is now possible to change a part of the cabinet following a natural disaster that would have damaged the structure of the panel. In addition, some LED modules allow disassembly through the front panel by means of small screws arranged between the LEDs. However, it is extremely difficult to intervene on the equipment arranged behind the modules LEDs because the size of a module is often reduced, for example 30x30cm. The invention also makes it possible to dismantle the structure, that is to say the bars when a maintenance operator intervenes by the front face. According to one embodiment, the step of determining the number and size of the vertical uprights necessary to form an internal structure of said cabinets is achieved by seeking an alternation of two types of vertical uprights, the two types of uprights having characteristics. structurally distinct resistance. This embodiment makes it possible to improve the mechanical strength of the panel.
Selon un mode de réalisation, l'étape de réalisation desdits montants d'encadrement par un profilé en aluminium est réalisée avec un angle de découpe sensiblement égal à 45° par rapport à la longueur dudit profilé. Ce mode de réalisation permet de former des angles saillants pour l'encadrement des cabinets. According to one embodiment, the step of producing said frame amounts by an aluminum profile is made with a cutting angle substantially equal to 45 ° with respect to the length of said profile. This embodiment makes it possible to form salient angles for the frame of the cabinets.
Selon un mode de réalisation, les étapes de réalisation des montants sont effectuées par une découpe au laser. Ce mode de réalisation permet d'obtenir une très grande précision de découpe. Ainsi, il est possible d'obtenir des surfaces de contact étanches au niveau des liaisons entre les différents éléments. According to one embodiment, the steps of producing the uprights are performed by laser cutting. This embodiment makes it possible to obtain a very high precision of cutting. Thus, it is possible to obtain sealed contact surfaces at the connections between the different elements.
Selon un mode de réalisation, lesdits montants d'encadrement comportent une rainure destinée à enserrer au moins une porte coulissante. Les cabinets standards utilisent des portes à charnières. Cependant, lorsqu'un cabinet est monté devant un poteau, il souvent impossible d'ouvrir la porte complètement. Ainsi, ce mode de réalisation permet de simplifier l'ouverture du cabinet en utilisant des portes coulissantes montées dans des rainures des montants d'encadrement. According to one embodiment, said frame amounts comprise a groove for gripping at least one sliding door. Standard cabinets use hinged doors. However, when a cabinet is mounted in front of a pole, it is often impossible to open the door completely. Thus, this embodiment makes it possible to simplify the opening of the cabinet by using sliding doors mounted in grooves of the frame posts.
Selon un mode de réalisation, ledit procédé comporte les étapes suivantes : According to one embodiment, said method comprises the following steps:
- détermination du nombre et de la taille des portes coulissantes nécessaires pour fermer lesdits cabinets, et  determining the number and size of the sliding doors necessary to close said cabinets, and
- réalisation des portes coulissantes par au moins un profilé en aluminium,  - realization of the sliding doors by at least one aluminum profile,
- chaque profilé étant choisi parmi des pièces standards et découpé si besoin à la dimension recherchée. Ce mode de réalisation vise à réaliser les portes coulissantes sur mesure de la même manière que les montants des cabinets. Ainsi, comme pour les cabinets, ce mode de réalisation permet de limiter le stock et de réaliser rapidement et sur mesure les portes des cabinets. De préférence, les portes coulissantes sont réalisées par trois profilés assemblés entre eux. Selon un mode de réalisation, ledit procédé comporte les étapes suivantes : détermination du nombre et de la taille des ventilateurs nécessaires pour refroidir lesdits cabinets, et usinage desdits montants d'encadrement de sorte à aménager une arrivée d'air pour lesdits ventilateurs. Ce mode de réalisation vise à anticiper la position des ventilateurs de sorte à refroidir efficacement les composants électroniques du panneau. Par exemple, la détermination du nombre et de la taille des ventilateurs peut être réalisée par une modélisation des échanges thermiques du panneau en fonctionnement. De préférence, les ventilateurs sont régulièrement espacés de la longueur ou de deux longueurs d'un module. - Each profile being selected from standard parts and cut if necessary to the desired size. This embodiment is intended to realize the sliding doors to measure in the same way as the amounts of cabinets. Thus, as for cabinets, this embodiment allows to limit the stock and realize quickly and tailor the cabinet doors. Preferably, the sliding doors are made by three sections assembled together. According to one embodiment, said method comprises the following steps: determining the number and size of the fans necessary for cooling said cabinets, and machining said frame amounts so as to arrange an air inlet for said fans. This embodiment aims to anticipate the position of the fans so as to effectively cool the electronic components of the panel. For example, the determination of the number and size of the fans can be achieved by modeling the heat exchange of the panel in operation. Preferably, the fans are regularly spaced the length or two lengths of a module.
De préférence, ledit procédé comporte une étape de montage desdits ventilateurs sur lesdits montants d'encadrement. En effet, même si les éléments du panneau sont envoyés sur le site démontés, il est possible de monter certains éléments avant l'envoi de sorte à simplifier le montage sur le site. Preferably, said method comprises a step of mounting said fans on said frame amounts. Indeed, even if the elements of the panel are sent to the disassembled site, it is possible to mount certain elements before sending so as to simplify the assembly on the site.
DESCRIPTION SOMMAIRE DES FIGURES SUMMARY DESCRIPTION OF THE FIGURES
La manière de réaliser l'invention ainsi que les avantages qui en découlent, ressortiront bien du mode de réalisation qui suit, donné à titre indicatif mais non limitatif, à l'appui des figures annexées dans lesquelles les figures 1 à 7 représentent : The manner of carrying out the invention as well as the advantages which result therefrom, will emerge from the following embodiment given by way of indication but not by way of limitation, in support of the appended figures in which FIGS. 1 to 7 represent:
- Figure 1 : un organigramme d'un procédé de réalisation des éléments d'un panneau d'affichage digital selon un mode de réalisation de l'invention ;  - Figure 1: a flowchart of a method of producing the elements of a digital display panel according to one embodiment of the invention;
- Figure 2 : une représentation schématique de face du découpage d'une surface d'affichage d'un panneau d'affichage digital selon un mode de réalisation de l'invention ;  - Figure 2: a schematic front view of the cutting of a display surface of a digital display panel according to one embodiment of the invention;
- Figure 3 : une vue en perspective de dos d'un panneau d'affichage digital selon un mode de réalisation de l'invention ;  - Figure 3: a perspective view of the back of a digital display panel according to one embodiment of the invention;
- Figure 4 : une vue en perspective d'une structure d'un panneau d'affichage digital selon un mode de réalisation de l'invention ;  - Figure 4: a perspective view of a structure of a digital display panel according to one embodiment of the invention;
- Figure 5 : une représentation schématique d'une structure d'un panneau d'affichage digital selon un mode de réalisation de l'invention ; - Figure 6a et 6b : deux vues en perspectives des deux types de colisage des éléments d'un panneau d'affichage digital selon deux modes de réalisation de l'invention ; et - Figure 5: a schematic representation of a structure of a digital display panel according to one embodiment of the invention; FIGS. 6a and 6b: two perspective views of the two types of packaging of the elements of a digital display panel according to two embodiments of the invention; and
- Figure 7a à 7c : trois étapes de montage d'une structure d'un cabinet d'un panneau d'affichage digital selon un mode de réalisation de l'invention.  - Figure 7a to 7c: three steps of mounting a cabinet structure of a digital display panel according to one embodiment of the invention.
DESCRIPTION DÉTAILLÉE DE L'INVENTION DETAILED DESCRIPTION OF THE INVENTION
La Figure 1 illustre un mode de réalisation du procédé de réalisation des éléments d'un panneau d'affichage digital 10 de grande taille, c'est-à-dire avec des dimensions supérieures à 2m par 3m. Figure 1 illustrates an embodiment of the method of producing the elements of a digital display panel 10 of large size, that is to say with dimensions greater than 2m by 3m.
La première étape 101 consiste à déterminer les dimensions hl, 11 d'une surface d'affichage 11 du panneau 10 en fonction d'une application envisagée. Au sens de l'invention, la surface d'affichage 11 correspond à la surface du panneau recouverte de LEDs par opposition aux parties formant le tour du panneau 10 et assurant le maintien du panneau 10. L'application envisagée fait référence à des consignes ou un cahier des charges. Par exemple, le cahier des charges intègre les dimensions recherchées de la zone deThe first step 101 consists in determining the dimensions h1, 11 of a display surface 11 of the panel 10 as a function of an intended application. Within the meaning of the invention, the display surface 11 corresponds to the surface of the panel covered with LEDs as opposed to the parts forming the turn of the panel 10 and ensuring the maintenance of the panel 10. The intended application refers to instructions or specification. For example, the specifications incorporate the desired dimensions of the area of
LEDs ainsi que l'intervalle (« pitch ») entre LEDs et la puissance lumineuse et/ou électrique des LEDs. LEDs as well as the interval ("pitch") between LEDs and the light and / or electrical power of the LEDs.
En fonction de ces contraintes, il est possible de sélectionner les modules de LEDs standards compatibles et de calculer les dimensions de la surface d'affichage 11 de sorte que la surface d'affichage 11 est réalisée par des juxtapositions de modules standards 12 de LEDs. Par exemple, avec un intervalle et une puissance des LEDs, les modules standards 12 compatibles présentent des dimensions h2, 12 de 40cm par 40cm. Pour une première zone de LEDs de 6.5m par 3m, il est possible de constituer une surface d'affichage 11 de 6.4m par 3.2m en juxtaposant 8 lignes de 16 modules 12. Pour une seconde zone de LEDs de 10.5m par 3m, il est possible de constituer une surface d'affichage 11 de 10.4m par 3.2m en juxtaposant 8 lignes de 26 modules 12. According to these constraints, it is possible to select the compatible standard LED modules and to calculate the dimensions of the display surface 11 so that the display surface 11 is made by juxtapositions of standard modules 12 of LEDs. For example, with an interval and a power of the LEDs, the standard modules 12 compatible have dimensions h2, 12 of 40cm by 40cm. For a first zone of LEDs of 6.5m by 3m, it is possible to constitute a display surface 11 of 6.4m by 3.2m by juxtaposing 8 lines of 16 modules 12. For a second zone of LEDs of 10.5m by 3m, it is possible to constitute a display surface 11 of 10.4m by 3.2m by juxtaposing 8 rows of 26 modules 12.
Pour une troisième zone de LEDs de 14.5m par 4m, il est possible de constituer une surface d'affichage 11 de 10.4m par 3.2m en juxtaposant 10 lignes de 36 modules 12. Lorsque les dimensions hl, 11 de la surface d'affichage 11 et le nombre de modules 12 sont déterminées, la seconde étape 102 vise à découper la surface d'affichage 11 en plusieurs cabinets 13 de sorte à répartir la portance des modules 12. La figure 2 illustre une stratégie de découpage de la surface d'affichage 11 en quatre cabinets 13. Les deux cabinets 13 supérieurs supportent 9 lignes de 12 modules 12 alors que les deux cabinets 13 inférieurs supportent 7 lignes de 12 modules 12. En effet, lors du découpage de la surface d'affichage 11, il n'est pas nécessaire que les cabinets 13 soient identiques. For a third zone of LEDs of 14.5m by 4m, it is possible to constitute a display area 11 of 10.4m by 3.2m by juxtaposing 10 lines of 36 modules 12. When the dimensions h1, 11 of the display surface 11 and the number of modules 12 are determined, the second step 102 aims to cut the display surface 11 into several cabinets 13 so as to distribute the lift of the modules 12. FIG. 2 illustrates a strategy of cutting the display surface 11 into four cabinets 13. The two upper cabinets 13 support 9 rows of 12 modules 12 whereas the two lower cabinets 13 support 7 rows of 12 modules 12. the cutting of the display surface 11, it is not necessary that the cabinets 13 are identical.
Selon le premier exemple chiffré précédent, pour une surface d'affichage 11 de 6.4m par 3.2m constituée par la juxtaposition de 8 lignes de 16 modules 12, la surface d'affichage 11 peut être découpée en deux cabinets 13 de 4 lignes de 16 modules 12. Selon le second exemple chiffré précédent, pour une surface d'affichage 11 de 10.4m par 3.2m constituée par la juxtaposition de 8 lignes de 26 modules 12, la surface d'affichage 11 peut être découpée en quatre cabinets 13 de 4 lignes de 13 modules 12. According to the first preceding example, for a display surface 11 of 6.4m by 3.2m formed by the juxtaposition of 8 lines of 16 modules 12, the display surface 11 can be divided into two cabinets 13 with 4 lines of 16 Modules 12. According to the second previous example, for a display surface 11 of 10.4m by 3.2m constituted by the juxtaposition of 8 lines of 26 modules 12, the display surface 11 can be divided into four cabinets 13 of 4 lines of 13 modules 12.
Selon le troisième exemple chiffré précédent, pour une surface d'affichage 11 de 14.4m par 4m constituée par la juxtaposition de 10 lignes de 36 modules 12, la surface d'affichage 11 peut être découpée en six cabinets 13 de 5 lignes de 12 modules 12. According to the third previous example, for a 14.4m by 4m display surface 11 constituted by the juxtaposition of 10 lines of 36 modules 12, the display surface 11 can be cut into six cabinets 13 with 5 lines of 12 modules. 12.
Lorsque les dimensions et le positionnement des cabinets 13 sont définis, il est possible d'en déduire tous les éléments nécessaires pour réaliser les cabinets 13 et les assembler. Pour se faire, la structure du panneau 10 est analogue à celle illustrée sur les figures 3 à 5. When the dimensions and the positioning of the cabinets 13 are defined, it is possible to deduce all the elements necessary to make the cabinets 13 and assemble. To do this, the structure of the panel 10 is similar to that illustrated in Figures 3 to 5.
Le panneau digital 10 comporte trois poteaux de maintien 27 plantés dans le sol. Ces poteaux supportent deux cabinets 13 juxtaposés selon le premier exemple chiffré. Chaque cabinet 13 présente une structure parallélépipédique formée par des montants d'encadrement 14 supportant des montants verticaux 15, 16 et des barreaux 17 fixés entre eux par boulonnage au moyen d'éléments de solidarisation 25. Les montants verticaux 15, 16 présentent une alternance de montants 15 épais et de montants 16 fins de sorte à assurer le support des modules LEDs 12 tout en limitant le poids du panneau 10. Chaque cabinet 13 intègre une pluralité de modules 12, chaque module 12 intégrant un réseau classique de diodes électroluminescentes disposées sur une face avant du cabinet 13 en lignes et en colonnes. Chaque cabinet 13 permet d'aménager un volume au niveau de la face arrière de chaque module 12 pour disposer les alimentations et les moyens de contrôle des modules 12. The digital panel 10 has three support posts 27 planted in the ground. These posts support two cabinets 13 juxtaposed according to the first encrypted example. Each cabinet 13 has a parallelepipedal structure formed by frame uprights 14 supporting vertical uprights 15, 16 and bars 17 fixed to each other by bolting by means of securing elements 25. The uprights 15, 16 have an alternation of 16 thick uprights and 16 uprights so as to support the LED modules 12 while limiting the weight of the panel 10. Each cabinet 13 incorporates a plurality of modules 12, each module 12 incorporating a conventional array of light-emitting diodes arranged on a front face of the cabinet 13 in rows and columns. Each cabinet 13 makes it possible to arrange a volume at the rear face of each module 12 to dispose the power supplies and the control means of the modules 12.
Ce volume est délimité par les montants d'encadrement 14 et des portes coulissantes 20 permettant d'accéder à la face arrière des modules 12. Chaque porte 20 est montée dans une rainure 21 ménagée sur les montants d'encadrement 14 supérieur et inférieur. En outre, ce volume est refroidi par un flux d'air généré par des ventilateurs 19 montés, au niveau de chaque rangée de modules 12, sur le montant d'encadrement 14 inférieur. Pour garantir l'arrivée d'air et limiter le risque de défaut d'étanchéité, les montants d'encadrement 14 sont réalisés au moyen d'un profilé en aluminium extrudé de sorte à former une double paroi entre l'extérieur et l'intérieur du panneau 10. This volume is delimited by the frame uprights 14 and sliding doors 20 to access the rear face of the modules 12. Each door 20 is mounted in a groove 21 formed on the upper and lower frame amounts 14. In addition, this volume is cooled by a flow of air generated by fans 19 mounted at each row of modules 12 on the lower frame amount 14. To guarantee the air supply and to limit the risk of leakage, the frame posts 14 are made by means of an extruded aluminum profile so as to form a double wall between the outside and the inside. of the panel 10.
Des ouvertures sont ménagées sur le montant inférieur pour amener l'air entre l'extérieur et les ventilateurs 19. De préférence, les ouvertures sont pourvues de filtres coalescents de sorte à capter l'humidité de l'air qui les traverse. Openings are provided on the lower upright to bring air between the outside and the fans 19. Preferably, the openings are provided with coalescing filters so as to capture moisture from the air passing therethrough.
Pour réaliser cette structure illustrée sur les figures 3 à 5, ou toute structure analogue, le procédé comporte plusieurs étapes 103, 104, 105, 106, 109 pouvant être réalisées simultanément. De préférence, le panneau 10 peut être réalisé numériquement pour définir tous les éléments avant de passer à la réalisation pratique. To achieve this structure illustrated in Figures 3 to 5, or any similar structure, the method comprises several steps 103, 104, 105, 106, 109 that can be performed simultaneously. Preferably, the panel 10 can be made numerically to define all the elements before proceeding to practical realization.
L'étape 103 vise à déterminer la nature et la taille des montants d'encadrement 14 en fonction des besoins du panneau 10. Step 103 aims to determine the nature and size of the frame amounts 14 according to the needs of the panel 10.
Par exemple, pour un panneau 10 disposé en extérieur, la résistance du panneau 10 doit être supérieure à celle d'un panneau disposé dans un bâtiment, il s'ensuit que la résistance des montants d'encadrement 14 doit être sélectionnée en fonction de ces contraintes de résistance mécanique. En variante, la nature des montants d'encadrement 14 peut être déterminée pour répondre à d'autre contraintes telles que le coût, la légèrement, la résistance à la corrosion... Généralement, la nature des montants d'encadrement 14 est déterminée en fonction d'un ensemble de critères visant à répondre au cahier des charges. Selon l'invention, les montants d'encadrement 14 sont sélectionnés selon des profilés en aluminium standards dont la forme permet de répondre aux contraintes du cahier des charges. For example, for a panel 10 disposed outside, the strength of the panel 10 must be greater than that of a panel disposed in a building, it follows that the strength of the frame amounts 14 must be selected according to these mechanical strength constraints. As a variant, the nature of the frame uprights 14 may be determined to meet other constraints such as cost, light weight, corrosion resistance ... Generally, the nature of the frame amounts 14 is determined by a set of criteria to meet the specifications. According to the invention, the frame amounts 14 are selected according to profiles in standard aluminum whose shape allows to meet the constraints of the specifications.
Lorsque la nature des montants d'encadrement 14 est déterminée, la taille et le nombre des montants sont déterminés en fonction de la taille et du nombre de cabinets 13 déterminés à l'étape 102. When the nature of the frame amounts 14 is determined, the size and the number of the amounts are determined according to the size and the number of cabinets 13 determined at the step 102.
Lorsque les montants 14 nécessaires pour former le panneau 10 sont définis, ces montants 14 sont réalisés dans l'étape 107 en découpant les profilés standards aux dimensions recherchées, par exemple par une découpe au laser. Lors de la découpe des montants 14, l'assemblage des montants 14 est anticipé, de sorte que les montants sont découpés à 45° pour former des angles propres aux coins des cabinets 13. When the uprights 14 necessary to form the panel 10 are defined, these uprights 14 are made in step 107 by cutting the standard sections to the desired dimensions, for example by laser cutting. When cutting the uprights 14, the assembly of the uprights 14 is anticipated, so that the uprights are cut at 45 ° to form angles at the corners of the cabinets 13.
Une étape similaire 104 est réalisée pour déterminer la nature, le nombre et la taille des montants verticaux 15, 16 ainsi que pour réaliser, dans l'étape 108, les montants verticaux 15, 16. A similar step 104 is performed to determine the nature, number and size of the uprights 15, 16 as well as to perform, in step 108, the uprights 15, 16.
En ce qui concerne les barreaux 17, l'étape 105 vise à déterminer la nature, le nombre et la taille des barreaux 17 de sorte à utiliser des barreaux standards adaptés sur les dimensions des modules standards 12. Regarding the bars 17, the step 105 aims to determine the nature, the number and the size of the bars 17 so as to use standard bars adapted to the dimensions of the standard modules 12.
L'étape 106 vise à déterminer le nombre et le type d'éléments de solidarisation 25 nécessaires pour fixer les montants 15, 16 et les barreaux 17 entre eux et pour relier les cabinets 13. De préférence, les éléments des cabinets 13 sont fixés par boulonnage et les éléments de solidarisation 25 sont du type vis/écrou. The step 106 aims to determine the number and type of securing elements 25 necessary to fix the uprights 15, 16 and the bars 17 between them and to connect the cabinets 13. Preferably, the elements of the cabinets 13 are fixed by bolting and the securing elements 25 are of the screw / nut type.
En outre, les étapes 109 et 110 visent à sélectionner et réaliser les portes coulissantes 20. Pour ce faire, les portes 20 sont réalisées à partir de profilés découpés en fonction de la hauteur de chaque cabinet 13. In addition, the steps 109 and 110 aim at selecting and making the sliding doors 20. To do this, the doors 20 are made from profiles cut according to the height of each cabinet 13.
La gestion des flux d'air des cabinets 13 peut également être anticipée dès la conception, par exemple par un modèle numérique de gestion des flux d'air. Il est ensuite possible, dans une étape 111, de déterminer le nombre, la taille et le positionnement des ventilateurs 19 nécessaires pour refroidir les cabinets 13. Au besoin, les montants d'encadrement 14 peuvent être usinés, dans une étape 112, pour créer des ouvertures afin d'aménager des arrivés d'air pour les ventilateurs 19. En variante, les profilés standards formant les montants d'encadrement 14 peuvent directement comprendre des emplacements prédéterminés pour les ventilateurs 19. Il est également possible, dans une étape 113, de monter les ventilateurs 19 sur les montants d'encadrement 14 avant le transport. The management of the air flows of the cabinets 13 can also be anticipated from the design, for example by a numerical model of airflow management. It is then possible, in a step 111, to determine the number, the size and the positioning of the fans 19 necessary for cooling the cabinets 13. If necessary, the frame amounts 14 can be machined, in a step 112, to create openings for arranging air inlets for the fans 19. Alternatively, the standard profiles forming the frame uprights 14 may directly include predetermined locations for the fans 19. It is also possible, in a step 113, to mount the fans 19 on the frame uprights 14 before transport.
Lorsque tous les éléments sont sélectionnés et/ou usinés, les éléments du panneau 10 peuvent être intégrés dans un containeur 30 afin de les transporter sans assembler les cabinets 13. Tel qu'illustré sur les figures 6a et 6b, un container 30 peut facilement contenir tous les éléments d'un panneau 10 réalisés selon l'invention alors que les panneaux de l'état de la technique pour les mêmes dimensions nécessitent plusieurs containeurs similaires. When all the elements are selected and / or machined, the elements of the panel 10 can be integrated in a container 30 to transport them without assembling the cabinets 13. As illustrated in Figures 6a and 6b, a container 30 can easily contain all the elements of a panel 10 made according to the invention whereas the panels of the state of the art for the same dimensions require several similar containers.
Lorsque les éléments sont livrés sur le site d'implantation du panneau 10, le montage de la structure de chaque cabinet 13 est réalisé tel qu'illustré sur les figures 7a à 7c. Dans une première étape, illustrée sur la figure 7a, les montants d'encadrement 14 de chaque cabinet 13 sont assemblés et boulonnés entre eux. Dans une seconde étape, illustrée sur la figure 7b, les montants verticaux 15, 16 sont boulonnés sur les montants d'encadrement 14 puis, dans une troisième étape illustrée sur la figure 7c, les barreaux 17 sont boulonnés entre les montantes verticaux 15, 16 et les montants d'encadrement 14. When the elements are delivered to the installation site of the panel 10, the assembly of the structure of each cabinet 13 is made as illustrated in Figures 7a to 7c. In a first step, illustrated in Figure 7a, the frame posts 14 of each cabinet 13 are assembled and bolted together. In a second step, illustrated in FIG. 7b, the vertical uprights 15, 16 are bolted to the frame uprights 14 and then, in a third step illustrated in FIG. 7c, the bars 17 are bolted between the vertical uprights 15, 16 and the frame amounts 14.
Ensuite, les modules LEDs 12 peuvent être montés sur la structure de chaque cabinet 13 ainsi que tous les éléments nécessaires au fonctionnement du panneau 10, tels que les ventilateurs 19, les alimentations, l'unité centrale, les portes 20... Then, the LED modules 12 can be mounted on the structure of each cabinet 13 and all the elements necessary for the operation of the panel 10, such as the fans 19, the power supplies, the central unit, the doors 20 ...
Selon l'invention, les modules LEDs 12 sont directement fixés sur les barreaux 17. Pour ce faire, les barreaux 17 intègrent des moyens de fixation des modules LEDs 12. Dans l'exemple de la figure 5, les barreaux 17 présentent deux extrémités en forme de T. La partie terminale en forme de T de chaque barreau 17 comporte un alésage pour fixer le barreau 17 sur un montant 14-16. Les parties latérales en forme de T de chaque barreau 17 comportent également un alésage destiné à fixer un module LEDs 12. Lorsque le module LEDs 12 est fixé sur un montant d'encadrement 14, des éléments de solidarisation 25 sont prévus pour fixer le module LEDs 12 avec des alésages proches du montant d'encadrement 14. According to the invention, the LED modules 12 are directly fixed on the bars 17. To this end, the bars 17 incorporate means for fixing the LED modules 12. In the example of FIG. 5, the bars 17 have two ends The T-shaped end portion of each bar 17 has a bore for securing the bar 17 to an upright 14-16. The T-shaped side portions of each bar 17 also comprise a bore for fixing a LEDs module 12. When the LEDs module 12 is fixed on a frame upright 14, securing elements 25 are provided for fixing the LEDs module. 12 with bores close to the frame amount 14.
Les barreaux 17 permettent ainsi de former la structure de fixation des modules LEDs 12 sont utiliser une pièce supplémentaire réalisée sur mesure à la dimension du panneau 10 ou du cabinet 13. Pour finir, les cabinets 13 sont boulonnés entre eux et montés sur les poteaux 27 tel qu'illustré sur la figure 3. The bars 17 thus make it possible to form the fixing structure of the LED modules 12 are to use an additional piece made to measure to the size of the panel 10 or the cabinet 13. Finally, the cabinets 13 are bolted together and mounted on the posts 27 as shown in Figure 3.
L'invention propose ainsi une nouvelle méthode de réalisation d'un panneau d'affichage digital 10 de grandes dimensions en mettant en œuvre des profilés en aluminium standards. Cette conception apporte de nombreux avantages tels que la diminution du temps de réalisation, du poids et la réduction de l'encombrement pour le stockage ou le transport des éléments du panneau 10. The invention thus proposes a new method of producing a digital display panel 10 of large dimensions by implementing standard aluminum profiles. This design brings numerous advantages such as the reduction of the production time, the weight and the reduction of the bulk for storing or transporting the elements of the panel 10.

Claims

REVENDICATIONS
1. Procédé de réalisation des éléments d'un panneau d'affichage digital (10) dont les dimensions sont supérieures à 2m par 3m, caractérisé en ce que ledit procédé comporte les étapes suivantes : 1. A method of producing elements of a digital display panel (10) whose dimensions are greater than 2m by 3m, characterized in that said method comprises the following steps:
- détermination (101) d'une hauteur (hl) et d'une longueur (11) d'une surface d'affichage (11) dudit panneau (10) en fonction d'une application envisagée, ladite hauteur (hl) et ladite longueur (11) étant des multiples d'une hauteur (h2) et d'une longueur (12) d'un module standard (12) destiné à être juxtaposé plusieurs fois pour former ladite surface d'affichage (11),  determining (101) a height (h1) and a length (11) of a display surface (11) of said panel (10) as a function of an intended application, said height (h1) and said length (11) being multiples of a height (h2) and a length (12) of a standard module (12) intended to be juxtaposed several times to form said display surface (11),
- découpage (102) de ladite surface d'affichage (11) en plusieurs cabinets (13) de sorte que chaque cabinet (13) comporte un nombre entier de modules standards (12), - cutting (102) said display surface (11) into several cabinets (13) so that each cabinet (13) comprises an integer number of standard modules (12),
- détermination (103) du nombre et de la taille des montants d'encadrement (14) nécessaires pour former un encadrement de chaque cabinet (13), determining (103) the number and size of the frame posts (14) necessary to form a frame of each cabinet (13),
- détermination (104) du nombre et de la taille des montants verticaux (15, 16) nécessaires pour former une structure interne desdits cabinets (13),  determining (104) the number and size of the uprights (15, 16) necessary to form an internal structure of said cabinets (13),
- détermination (105) du nombre de barreaux (17) nécessaires pour relier lesdits montants (15-17) desdits cabinets, la taille desdites barreaux (17) étant sélectionnée en fonction de ladite longueur (12) desdits modules standards ; lesdits barreaux (17) comportant des moyens de fixation desdits modules standards,  - determining (105) the number of bars (17) necessary to connect said uprights (15-17) of said cabinets, the size of said bars (17) being selected according to said length (12) of said standard modules; said bars (17) comprising means for fixing said standard modules,
- détermination (106) du nombre et du type d'éléments de solidarisation (25) nécessaires pour fixer les montants (15-16) et les barreaux (17) entre eux et pour relier les cabinets (13), lesdits éléments de solidarisation (25) étant du type vis/écrou,  determination (106) of the number and type of securing elements (25) necessary for fixing the uprights (15-16) and the bars (17) together and for connecting the cabinets (13), said securing elements ( 25) being of the screw / nut type,
- réalisation (107) desdits montants d'encadrement (14) par un profilé en aluminium, et  - Realization (107) of said frame amounts (14) by an aluminum profile, and
- réalisation (108) des montants verticaux (15, 16) par un profilé en aluminium, - realization (108) of the vertical uprights (15, 16) by an aluminum profile,
- chaque profilé étant choisi parmi des pièces standards et découpé si besoin à la dimension recherchée. - Each profile being selected from standard parts and cut if necessary to the desired size.
2. Procédé selon la revendication 1, dans lequel l'étape de détermination (104) du nombre et de la taille des montants verticaux (15, 16) nécessaires pour former une structure interne desdits cabinets (13) est réalisée en recherchant une alternance de deux types de montants verticaux (15, 16), les deux types de montants verticaux (15, 16) ayant des caractéristiques de résistance structurellement distinctes. 2. The method of claim 1, wherein the step of determining (104) the number and size of the uprights (15, 16) necessary to form an internal structure of said cabinets (13) is achieved by seeking alternation of two types of uprights (15, 16), both types of uprights (15, 16) having structurally distinct strength characteristics.
3. Procédé selon la revendication 1 ou 2, dans lequel l'étape de réalisation (107) desdits montants d'encadrement (14) par un profilé en aluminium est réalisée avec un angle de découpe sensiblement égal à 45° par rapport à la longueur dudit profilé. 3. Method according to claim 1 or 2, wherein the step of producing (107) said frame uprights (14) by an aluminum profile is made with a cutting angle substantially equal to 45 ° with respect to the length said profile.
4. Procédé selon l'une des revendications 1 à 3, dans lequel lesdites étapes de réalisation (107, 108) des montants (14-16) sont réalisées par une découpe au laser. 4. Method according to one of claims 1 to 3, wherein said steps (107, 108) of the amounts (14-16) are performed by laser cutting.
5. Procédé selon l'une des revendications 1 à 4, dans lequel lesdits montants d'encadrement (14) comportent une rainure (21) destinée à enserrer au moins une porte coulissante (20). 5. Method according to one of claims 1 to 4, wherein said frame uprights (14) comprise a groove (21) for gripping at least one sliding door (20).
6. Procédé selon la revendication 5, dans lequel ledit procédé comporte les étapes suivantes : The method of claim 5, wherein said method comprises the following steps:
- détermination ( 109) du nombre et de la taille des portes coulissantes (20) nécessaires pour fermer lesdits cabinets (13), et  determining (109) the number and size of the sliding doors (20) necessary to close said cabinets (13), and
- réalisation (110) des portes coulissantes (20) par au moins un profilé en aluminium, - realization (110) of the sliding doors (20) by at least one aluminum profile,
- chaque profilé étant choisi parmi des pièces standards et découpé si besoin à la dimension recherchée. - Each profile being selected from standard parts and cut if necessary to the desired size.
7. Procédé selon l'une des revendications 1 à 6, dans lequel ledit procédé comporte les étapes suivantes : 7. Method according to one of claims 1 to 6, wherein said method comprises the following steps:
- détermination (111) du nombre et de la taille des ventilateurs (19) nécessaires pour refroidir lesdits cabinets (13), et  determining (111) the number and size of the fans (19) necessary for cooling said cabinets (13), and
- usinage (112) desdits montants d'encadrement (14) de sorte à aménager une arrivée d'air pour lesdits ventilateurs (19).  machining (112) said frame uprights (14) so as to arrange an air inlet for said fans (19).
8. Procédé selon la revendication 7, dans lequel les ventilateurs (19) sont régulièrement espacés de la longueur (12) ou de deux longueurs (12) d'un module (12). 8. The method of claim 7, wherein the fans (19) are regularly spaced the length (12) or two lengths (12) of a module (12).
9. Procédé selon la revendication 7 ou 8, dans lequel ledit procédé comporte une étape de montage (113) desdits ventilateurs (19) sur lesdits montants d'encadrement (14). 9. The method of claim 7 or 8, wherein said method comprises a step of mounting (113) said fans (19) on said frame posts (14).
EP18702746.1A 2017-01-12 2018-01-09 Method for creating the elements of a digital display panel Active EP3568845B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1750279A FR3061795B1 (en) 2017-01-12 2017-01-12 METHOD FOR PRODUCING THE ELEMENTS OF A DIGITAL DISPLAY PANEL
PCT/FR2018/050044 WO2018130774A1 (en) 2017-01-12 2018-01-09 Method for creating the elements of a digital display panel

Publications (2)

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EP3568845A1 true EP3568845A1 (en) 2019-11-20
EP3568845B1 EP3568845B1 (en) 2021-09-01

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EP (1) EP3568845B1 (en)
FR (1) FR3061795B1 (en)
WO (1) WO2018130774A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5949581A (en) 1997-08-12 1999-09-07 Daktronics, Inc. Display system
US8702048B2 (en) * 2008-05-23 2014-04-22 Daktronics, Inc. Support assembly
US8122627B2 (en) * 2004-09-23 2012-02-28 Daktronics, Inc. Ventilated washable electronic sign display enclosure
US7774968B2 (en) * 2007-04-27 2010-08-17 Daktronics, Inc. Transportable electronic sign display system

Also Published As

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EP3568845B1 (en) 2021-09-01
FR3061795B1 (en) 2020-02-07
WO2018130774A1 (en) 2018-07-19
FR3061795A1 (en) 2018-07-13

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