CN210955965U - LED display screen case with embedded and combined side walls - Google Patents

Abstract

The utility model provides a LED display screen machine case that combination is inlayed to lateral wall, including box and front bezel, the box comprises sheet metal, the front-mounted front bezel. The front plate is provided with a plurality of hollow windows, and the edges of the hollow windows are flanged and stretched towards the inside of the box; the rear part of the box body is rolled and stretched to form the heat dissipation window, and the strength of the chassis is increased. Four edges of one metal sheet are folded simultaneously through a die to form four side walls of the box body, the side walls at or near the box corners are embedded and combined with each other, and lining corners are pasted in the box for fixing; when the front plate is combined with the box body, the front plate is placed on the convex baffle of the side wall, the inclined folded edge of the front plate and the inner side of the side wall form a gap, and the gap is filled with adhesive for bonding, so that the manufacturing consistency is ensured, welding influencing the manufacturing speed and precision is eliminated, the automatic processing of a production line is easy to realize, and the manufacturing efficiency and the manufacturing precision are improved. The utility model discloses thereby reached save material, saved artifical reduce cost's purpose.

Description

LED display screen case with embedded and combined side walls

Technical Field

The utility model relates to a display device technical field especially relates to a structure and the manufacturing of LED display screen machine case that combination is inlayed to lateral wall.

Background

Under the continuous development and promotion of 'Chinese manufacturing', the LED display screen chassis is increasingly pursuing to save materials, save labor and reduce weight and cost under the condition of meeting the strength requirement. This requires continuous improvement in the structural design of LED display cabinet, development and adoption of techniques and processes not yet used thereon, such as calendering and drawing using dies, robot welding, and automated processing in a production line.

Chinese patent document CN207217015U discloses "LED display screen box", and fig. 1 (i.e. original fig. 3) is a schematic diagram of an exemplary embodiment of the solution. Referring to fig. 1, the front part of the frame body of the box body is provided with a plurality of LED module mounting frames arranged in a matrix manner by a plurality of connecting rod bodies which are arranged in a criss-cross manner, the rear part of the frame body is provided with a door, one side of the door is hinged with the frame body by an inserting and rotating structure, and the door is mounted on the frame body. In order to satisfy the strength requirement, the material constituting the "frame main body" must have a certain thickness, and the structure of the "LED module mounting frame arranged in a matrix in a criss-cross arrangement" obviously cannot contribute to reduction of the material thickness to save material and weight. Moreover, the designed structure is obviously suitable for the manufacturing process of manual successive flanging and manual electric welding, because the shapes of the box edge and the box corner are complicated, automatic processing and robot electric welding are difficult to use, and the labor cost cannot be saved. Moreover, the electric welding itself has disadvantages, such as labor-consuming time, polishing after welding, surface treatment (painting, powder spraying, oxidation, etc.), and the manufacturing accuracy is affected.

Chinese patent document CN205194244U discloses an LED die-casting aluminum box, and the technical scheme considers that the problems of unreasonable structural design … …, poor box strength, heavy box, complex production and processing technology, high production and manufacturing cost and the like of the traditional sheet metal box exist, so that the scheme adopts the die-casting aluminum box to realize light weight, reasonable structural design and high support strength, adopts casting one-step forming and can realize box manufacturing through turning and milling technologies, thereby saving a large amount of production such as sheet metal machining, welding and the like, and effectively reducing the production and manufacturing cost. However, with the die-casting aluminum box, in order to ensure the die-casting quality, the effects of reducing the thickness, reducing the weight and increasing the strength are still insufficient due to the process limitation, and meanwhile, the problems of long time and high cost caused by the use of die-casting, turning and milling processes exist, and the manufacturing precision, the manufacturing efficiency and the production and manufacturing cost are still improved.

Therefore, the structural design and manufacturing techniques and processes of the LED display cabinet still need to be improved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is, to the not enough of above-mentioned prior art, improve design LED display screen machine case structure, make its save material, reduce weight to realize assembly line automatic processing easily, thereby reach save material, save artifical reduce cost's purpose.

In order to solve the technical problem, the technical scheme of the utility model a LED display screen machine case that combination is inlayed to lateral wall is provided, its characterized in that: the component parts comprise a box body and a front plate; the box body is a rectangular body formed by a metal thin plate, the front part of the box body is open, and a front plate is installed on the box body; four sides of the metal sheet are folded through the die to form four side walls of the box body, the side walls and the side walls are combined in a concave-convex embedding mode at box corners, or the edges of the box body close to the box corners are combined in a concave-convex embedding mode, and lining corners are adhered to the combination positions of the side walls on the inner sides of the box corners for fixing.

Preferably, the metal sheet of the side wall of the box body is stretched and drawn into the box at intervals to form a plurality of convex blocks, and four edges of the front plate are obliquely folded towards the outside of the box and towards the center of the front plate; when the front plate is combined with the box body, the front plate is placed on the convex baffle, the folded edge inclined towards the center of the front plate and the inner side of the side wall of the box body form a gap, and adhesive is poured into the gap to enable the front plate to be adhered and fixed on the box body.

Preferably, the concave-convex part of the side wall is rectangular when the side wall is combined with the box corner in a concave-convex embedded manner; the concave-convex parts of the side walls are dovetail groove wedges when the box edges close to the box corners are combined in a concave-convex embedding mode.

Preferably, the front plate of the metal sheet is provided with a plurality of hollow windows, and the edges of the hollow windows are flanged and stretched.

Preferably, the front plate is provided with a plurality of bosses which are formed by rolling and drawing the same metal sheet constituting the front plate.

Preferably, the rear part of the box body bulges outwards to form a heat radiation window with a through hole, and the heat radiation window is formed by rolling, stretching and forming the same metal sheet forming the box body.

Preferably, the metal sheets of the box body and the front plate are rolled with strip-shaped and block-shaped depressions as reinforcing ribs.

The utility model has the advantages that: the edge of the hollow window is additionally provided with flanging stretching and box body heat dissipation window calendaring stretching forming, so that the novel hollow window has the unexpected advantages of strengthening the metal sheet forming the case, increasing the strength of the case, and being beneficial to reducing the thickness of materials and reducing the weight. Four sides of a metal sheet are folded simultaneously by adopting a die to form four side walls of the box body, the side walls are embedded and combined with each other in a sawtooth manner and are adhered with lining corners to be fixed at the box corners or the positions close to the box corners, and the front plate and the box body are combined by adopting a pouring adhesive for adhesion, so that the manufacturing consistency is ensured, the welding influencing the manufacturing speed and the manufacturing precision is eliminated, the automatic processing of a production line is easily realized, and the manufacturing precision and the manufacturing efficiency are improved. The utility model discloses thereby reached save material, saved artifical reduce cost's purpose.

Drawings

FIG. 1 is a schematic structural diagram of a case of an LED display screen in the prior art;

fig. 2 is a schematic structural diagram of an LED display screen chassis in embodiment 1;

FIG. 3 is a schematic view showing a joint portion between the case and the front plate in embodiment 1;

FIG. 4 is an expanded view of the detail part A in example 1;

FIG. 5 is an expanded view of the detail part B in example 1;

fig. 6 is a schematic structural diagram of an LED display screen chassis in embodiment 2;

fig. 7 is an expanded view of a part C in embodiment 2.

The figures include the following reference numerals:

1-a box body; 2-front panel; 3-a module; 4-a blank window; 7-a heat dissipation window; 12-blank window edge; 13-a side wall; 14-convex block; 15-a gap; 16-lining corners; 17-sidewall junction; 18-a circuit board; 19-boss; and 20-riveting expansion studs.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, the terms "center", "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Fig. 2 is a schematic view of a case structure of an LED display screen according to embodiment 1 of the present invention, please refer to fig. 2. The LED display screen case comprises a case body 1 and a front plate 2. The box body 1 is a rectangular body formed by a metal thin plate, four corners of the metal thin plate are removed, and four sides of the metal thin plate are folded simultaneously through a die to form four side walls 13 of the box body 1. The front part of the box body 1 is open and is provided with a front plate 2 formed by a metal thin plate; the front plate 2 is provided with 6 empty windows 4 matched with the modules 3 and arranged in a 2x3 mode. The hollow window 4 is rectangular, four corners are round corners, and the edge of the hollow window 4 is turned inwards to form a hollow window edge 12. The modules 3 (only one is shown in fig. 2) are provided with a plurality of magnetic steels (for example, 4 protrusions shown on the left side of the module 3 in fig. 2) so that the modules 3 cover the hollow windows 4 and are fixed on the front plate 2 in an absorption manner.

Fig. 3 is a schematic view of a joint portion between the box body and the front panel in embodiment 1, and fig. 5 is a schematic view (not an enlarged view) of a part B, namely, a box corner portion in embodiment 1, see fig. 2, fig. 3, and fig. 5, and particularly a side wall joint 17. The box body 1 is formed by folding a metal sheet, namely after the metal sheet is subjected to corner cutting and blanking at the same time by adopting a die and rectangular sawteeth are formed, four sides of the metal sheet are folded at the same time to form four side walls 13 of the box body 1, so that the manufacturing consistency of the box body is ensured. At the four corners of the box body 1, the side walls 13 and the side walls 13 are combined in a mutual sawtooth embedding manner at the box corners, namely, are combined in a mutual concave-convex embedding manner. Referring to fig. 5, the concave-convex portion of the sidewall 13 for embedding is rectangular, that is, a rectangular sawtooth concave-convex embedding is adopted to form a sidewall joint 17. The joint 17 close to the side wall at the inner side of the box corner is fixed by using an adhesive to stick the lining corner 16, so that the four corners of the box body 1 are free from welding, and the manufacturing efficiency and precision are improved.

Please continue to refer to fig. 2 and 3, in particular to the blank window 4 and the blank window edge 12. The whole circle edge of the hollow window 4 is turned over towards the inside of the box in a seamless mode, namely the edge 12 of the hollow window is stretched towards the inside of the box. The flanging and drawing is to roll the edge of the metal sheet by a die to form a seamless closed loop, and the bending is generally completed by one-step stamping by a properly designed die, so that the processing is convenient and easy. The edge 12 of the hollow window is stretched towards the L-shaped flanging in the box, obviously increasing the strength of the hollow window 4 and simultaneously increasing the strength of the front plate 2 provided with 6 hollow windows.

Fig. 4 is an expanded view (not an enlarged view) of a part a, i.e., a corner portion of the front plate in embodiment 1, see fig. 4. The four corners of the thin metal plate constituting the front plate 2 are simultaneously chamfered at an obtuse angle slightly larger than 90 degrees so that the four sides of the front plate 2 can be folded more than 90 degrees to the outside of the box, thereby inclining the folded side of the front plate 2 toward the center of the front plate. With continued reference to fig. 2, 3 and 4, in particular the ledge 14 and the gap 15. The sheet metal of the four side walls 13 of the box body 1 is rolled into the box at regular intervals to form a plurality of projections 14, that is, the side walls 13 are rolled into the box at regular intervals to form a plurality of depressions, which form the projections 14 with respect to the front plate 2. The four sides of the front plate 2 are folded outwards by 90 degrees in an L shape at the same time, and then are inclined and folded towards the center of the front plate, namely the four sides of the front plate 2 are folded outwards by more than 90 degrees, so that the folded sides are inclined towards the center of the front plate. When the front plate 2 is combined with the box body 1, the front plate 2 is placed on the convex block 14, and the folded edge inclined towards the center of the front plate and the inner side of the side wall 13 of the box body form a gap 15. The slit 15 is formed in a circle around the periphery of the casing 1. The gap 15 is filled with adhesive to firmly adhere the front plate 2 to the case 1. The combination of the front plate 2 and the case 1 thus eliminates welding and improves manufacturing efficiency and accuracy.

Please continue to refer to fig. 2 and 3. The box body 1 is made of metal sheets, a heat dissipation window 7 with a long round through hole and bulging towards the outside of the box is arranged on the box body 1, and the whole heat dissipation window 7 is formed by extending and stretching the same metal sheet forming the box body 1 towards the outside of the box.

Please continue to refer to fig. 2 and 3. Between the windows 4 of the front plate 2, the metal sheet is rolled with strip-shaped depressions as reinforcing ribs. Similarly, strip-shaped and block-shaped depressions are respectively rolled as reinforcing ribs on the sheet metal of the tank body 1 near the side walls 13 and the tank corners.

Please continue to refer to fig. 2 and 3. The stretched hollow window edge 12 of the upper flanging of the front plate 2 and the heat dissipation window 7 formed by calendering and stretching of the box body 1 bring unexpected benefits, namely, the reinforced effect is achieved on a metal sheet forming the case, the strength of the front plate 2 and the strength of the box body 1 are respectively increased, the reduction of material thickness and weight are facilitated, the procedures are reduced, and the cost is reduced.

Please continue to refer to fig. 2 and 3. In the design of a common sheet metal case, a case body is formed into four walls by folding a metal sheet for multiple times, the case body is combined with a front plate, and the factors make the corresponding welding more complicated, so that the sheet metal case is suitable for manual welding and seriously influences the manufacturing efficiency and the manufacturing precision. The design of the case of the embodiment adopts a die to simultaneously hem four edges of a metal sheet to form four side walls of a case body, case corners are combined by concave-convex embedding of the side walls, and then lining corners are pasted on the case corners to be fixed. And the combination of the front plate 2 and the box body 1 adopts a convex block and a hem gap, and then the gap is filled with adhesive for bonding. Therefore, the multiple folding edges influencing the manufacturing consistency and the welding influencing the manufacturing speed and precision are eliminated, and the manufacturing precision and efficiency are improved. Therefore, the case structure and the process design of the embodiment bring unexpected benefits, namely, the accuracy is ensured, the working procedures are reduced, the case is suitable for batch and automatic manufacturing, the manufacturing efficiency and the manufacturing accuracy are greatly improved, and the cost is reduced.

Example 2

Fig. 6 is a schematic structural diagram of an LED display screen chassis in embodiment 2, please refer to fig. 6. The LED display screen case comprises a case body 1 and a front plate 2. The box body 1 is a rectangular body formed by a metal thin plate, four corners of the metal thin plate are removed, and four sides of the metal thin plate are folded simultaneously through a die to form four side walls 13 of the box body 1. The front of the case 1 is open and a front plate 2 made of a thin metal plate is mounted. The front plate 2 is provided with a plurality of louvers 4 and a plurality of bosses 19. The hollow window 4 is rectangular or in other shapes, if there is a corner, the hollow window is a round corner, and the edge of the hollow window 4 stretches towards the outward flanging of the box to form a hollow window edge 12. The bosses 19 are formed by rolling and drawing the same sheet metal that forms the front plate, some of which have magnetic steel (not shown in fig. 6) mounted thereon. Rivet studs 20 (not all labeled in fig. 6) are mounted on the front plate 2, and the circuit board 18 is mounted on the rivet studs 20 of the front plate 2. The module 3 has a plurality of (only one is shown in fig. 6), iron sheets are arranged on the module 3 opposite to the magnetic steel, and the module 3 is fixed on the front plate 2 in an absorption manner and covers the circuit board 18 and the front plate 2.

Fig. 7 is an expanded view (not enlarged) of a part C, i.e., a corner portion of the tank in embodiment 2, see fig. 6 and 7, and particularly a side wall junction 17. The box body 1 is formed by folding a metal sheet, namely after the metal sheet is subjected to corner cutting and blanking at the same time by adopting a die and forms sawteeth, four sides of the metal sheet are folded at the same time to form four side walls 13 of the box body 1, so that the manufacturing consistency of the box body is ensured. On the box edge of the box body 1 close to the box corner, the side wall 13 and the side wall 13 are in sawtooth embedding combination, namely, in concave-convex embedding combination. Referring to fig. 7, the side wall 13 of this embodiment has concave and convex portions for embedding, which are dovetail wedge shapes, that is, the metal sheet is cut at a corner and blanked at the same time to form dovetail wedge-shaped sawteeth, four sides of the dovetail wedge-shaped sawteeth are folded at the same time to form four side walls 13, and then the side wall beyond the bottom of the box is folded at the same time to form four complete box corners, and the side wall 13 is embedded into another side wall 13 at the box edge close to the box corner to form dovetail wedge-shaped concave and convex embedding, that is, a side wall joint 17. The box corners are fixed at the joint 17 close to the side wall on the inner side of the box corner by using an adhesive to stick the lining corner 16, so that the four corners of the box body 1 are welded, and the manufacturing efficiency and precision are improved. The box corner and side wall junction 17 thus formed is obviously stronger.

Other parts of the case of this embodiment are similar to embodiment 1, including but not limited to the heat dissipation window 7 whose four sides of the front plate 2 are obliquely folded toward the center of the front plate to be adhered and fixed with the inner side of the side wall of the case body 1 and formed by stretching.

The undescribed technical features of the present invention can be realized by the prior art, and are not described herein again. The above description is not intended to limit the present invention, and any modifications made without departing from the spirit and scope of the present invention are also encompassed in the present invention.

Claims (7)

1. The utility model provides a LED display screen machine case that combination is inlayed to lateral wall which characterized in that: the component parts comprise a box body and a front plate; the box body is a rectangular body formed by a metal thin plate, the front part of the box body is open, and a front plate is installed on the box body; four sides of the metal sheet are folded through the die to form four side walls of the box body, the side walls and the side walls are combined in a concave-convex embedding mode at box corners, or the edges of the box body close to the box corners are combined in a concave-convex embedding mode, and lining corners are adhered to the combination positions of the side walls on the inner sides of the box corners for fixing.

2. The LED display screen cabinet with embedded and combined side walls as claimed in claim 1, wherein: the metal sheet on the side wall of the box body is pressed into the box at intervals to stretch and form a plurality of convex blocks, and the four sides of the front plate are obliquely folded towards the outside of the box and towards the center of the front plate; when the front plate is combined with the box body, the front plate is placed on the convex baffle, the folded edge inclined towards the center of the front plate and the inner side of the side wall of the box body form a gap, and adhesive is poured into the gap to enable the front plate to be adhered and fixed on the box body.

3. The LED display screen cabinet with embedded and combined side walls as claimed in claim 1, wherein: the side walls are in concave-convex embedded combination with each other at the box corners, and the concave-convex part is rectangular; the side walls are combined by concave-convex embedding on the box edges close to the box corners, and concave-convex parts of the side walls are dovetail groove wedges.

4. The LED display screen cabinet with embedded and combined side walls as claimed in claim 1, wherein: a plurality of hollow windows are arranged on the front plate of the metal sheet, and the edges of the hollow windows are flanged and stretched.

5. The LED display screen cabinet with embedded and combined side walls as claimed in claim 1, wherein: the front plate is provided with a plurality of bosses, and the bosses are formed by rolling, stretching and forming the same metal sheet forming the front plate.

6. The LED display screen cabinet with embedded and combined side walls as claimed in claim 1, wherein: and the rear part of the box body bulges outwards to form a heat dissipation window with a through hole, and the heat dissipation window is formed by rolling, stretching and forming the same metal sheet forming the box body.

7. The LED display screen cabinet with embedded and combined side walls as claimed in claim 1, wherein: and rolling strip-shaped and block-shaped depressions on the metal sheets of the box body and the front plate to be used as reinforcing ribs.

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