CN219999765U - Box body of LED display device and LED display device - Google Patents

Abstract

The utility model provides a box of an LED display device and the LED display device, wherein the box of the LED display device comprises: a rear plate; a first side plate; the second side plate is arranged opposite to the first side plate; the first contact convex rib is arranged on the surface of the first side plate, which is away from the second side plate; the anti-collision convex rib is arranged on the surface of the first side plate, which is away from the second side plate, and is positioned on one side of the first contact convex rib, the first side plate comprises a first side edge and a second side edge which are oppositely arranged, two ends of the anti-collision convex rib extend to the first side edge and the second side edge respectively, and the anti-collision convex rib protrudes out of the first contact convex rib towards the outer part of the rear plate; the second contact convex rib is arranged on the surface of the second side plate, which is away from the first side plate; the avoidance concave part is arranged on the surface of the second side plate, which is away from the first side plate. The technical scheme of the utility model effectively solves the problem that the first side plate of the box body and the ground contact plate generate abrasion and collision when the LED display device in the related technology is placed on the ground.

Description

Box body of LED display device and LED display device

Technical Field

The utility model relates to the technical field of LED display, in particular to a box of an LED display device and the LED display device.

Background

The LED display device comprises a box body and an LED display module arranged on the front side of the box body. The box includes the back plate, connects in the first curb plate of back plate and connects in the second curb plate of back plate, and first curb plate and second curb plate set up in opposite directions. When the two boxes of the LED display device are spliced, the second side plate of one box of the LED display device is in contact fit with the first side plate of the other box of the LED display device.

When the LED display device in the related art is placed on the ground, the first side plate of the box body is contacted with the ground, so that the first side plate is worn and bumped. When two boxes of the LED display device are spliced, the second side plate of one box of the LED display device is matched with the first side plate of the other box of the LED display device after being worn and bumped, so that the contact surface of the two boxes of the LED display device is reduced, and the splicing is unstable.

Disclosure of Invention

The utility model mainly aims to provide a box body of an LED display device and the LED display device, so as to solve the problem that a first side plate of the box body and a ground contact plate generate abrasion and collision when the LED display device in the related art is placed on the ground.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a case of an LED display device, comprising: a rear plate; the first side plate is connected to one side of the rear plate; the second side plate is connected to the other side of the rear plate and is arranged opposite to the first side plate; the first contact convex rib is arranged on the surface of the first side plate, which is away from the second side plate; the anti-collision convex rib is arranged on the surface of the first side plate, which is away from the second side plate, and is positioned on one side of the first contact convex rib, the first side plate comprises a first side edge and a second side edge which are oppositely arranged, two ends of the anti-collision convex rib extend to the first side edge and the second side edge respectively, and the anti-collision convex rib protrudes out of the first contact convex rib towards the outer part of the rear plate; the second contact convex rib is arranged on the surface of the second side plate, which is away from the first side plate; the avoidance concave part is arranged on the surface of the second side plate, which is away from the first side plate, and is positioned at one side of the second contact convex rib; when two boxes of the LED display device are spliced, the second contact convex rib of one box of the LED display device is in contact fit with the first contact convex rib of the other box of the LED display device, and the avoidance concave part of the one box is in avoidance fit with the anti-collision convex rib of the other box.

Further, when the avoiding concave part of one box body is in avoiding fit with the anti-collision convex rib of the other box body, the avoiding concave part and the anti-collision convex rib have installation gaps in the front-back direction of the box body.

Further, two ends of the first contact convex rib extend to the first side edge and the second side edge respectively; the second side plate comprises a first side edge and a second side edge which are oppositely arranged, and two ends of the second contact convex rib extend to the positions of the first side edge and the second side edge respectively.

Further, the first contact convex rib, the anti-collision convex rib, the second contact convex rib and the avoidance concave parts are two, the two anti-collision convex ribs are arranged on two sides of the two first contact convex ribs, and the two avoidance concave parts are arranged on two sides of the two second contact convex ribs.

Further, the two anti-collision convex ribs are front anti-collision convex ribs and rear anti-collision convex ribs which are arranged at intervals along the front-back direction of the box body, and a preset gap is reserved between the front anti-collision convex ribs and the front side surface of the first side plate.

Further, a first via hole is formed in the first side plate, and the first via hole is located between the two first contact ribs; the second side plate is provided with a second via hole, and the second via hole is positioned between the two second contact convex ribs.

Further, when the two boxes are spliced, the two boxes are matched in a positioning mode through a positioning structure, the positioning structure comprises positioning protrusions and positioning holes, one of the positioning protrusions and the positioning holes is formed in the second side plate, and the other one of the positioning protrusions and the positioning holes is formed in the first side plate; when the positioning bulge is arranged on the second side plate, the positioning hole is arranged on the first side plate, the positioning bulge is positioned between the two second contact convex ribs, and the positioning hole is positioned between the two first contact convex ribs.

Further, the back plate is a rectangular plate, the first side plate is connected to the first long side of the rectangular plate, the second side plate is connected to the second long side of the rectangular plate, the first contact convex rib, the second contact convex rib, the anti-collision convex rib and the avoidance concave part extend along the length direction of the rectangular plate, the anti-collision convex rib protrudes out of the first contact convex rib towards the outer part of the rectangular plate along the width direction of the rectangular plate, the second contact convex rib protrudes towards the outer part of the rectangular plate along the width direction of the rectangular plate, and the avoidance concave part is recessed towards the inner part of the rectangular plate along the width direction of the rectangular plate; the avoidance concave part comprises a horizontal plane and a vertical plane connected with the horizontal plane, and the vertical plane is positioned between the horizontal plane and the second contact convex rib so that the horizontal plane and the vertical plane form a step structure.

Further, the back plate, the first side plate, the second side plate, the first contact convex rib, the anti-collision convex rib and the second contact convex rib are of an integrated structure.

According to another aspect of the present utility model, there is provided an LED display device, including a case and an LED display module disposed on a front side of the case, where the case is the case of the LED display device, and the anti-collision rib protrudes from the LED display module toward the outside of the back plate.

By applying the technical scheme of the utility model, the box body of the LED display device comprises: the back plate, first curb plate, second curb plate, first contact protruding muscle, bump protection protruding muscle, second contact protruding muscle dodge the concave part. The first side plate is connected to one side of the rear plate. The second side plate is connected to the other side of the rear plate, and the second side plate and the first side plate are arranged in opposite directions. The first contact rib is arranged on the surface of the first side plate away from the second side plate. The anti-collision convex rib is arranged on the surface of the first side plate away from the second side plate and is positioned on one side of the first contact convex rib. The first side plate comprises a first side and a second side which are oppositely arranged, and two ends of the anti-collision convex rib extend to the first side and the second side respectively. The anti-collision convex rib protrudes out of the first contact convex rib from the outer portion of the rear plate, so that the anti-collision convex rib on the first side plate of the box body can be in contact with the ground when the LED display device is placed on the ground. The anti-collision convex rib is in contact with the ground, so that the problem that the first contact convex rib is worn and bumped due to contact with the ground is avoided. The two ends of the anti-collision convex rib extend to the first side edge and the second side edge respectively, so that the contact area between the anti-collision convex rib and the ground is increased, and the LED display device can be more stable when placed on the ground. The second contact rib is arranged on the surface of the second side plate, which is away from the first side plate. The avoidance concave part is arranged on the surface of the second side plate, which is away from the first side plate, and is positioned on one side of the second contact convex rib. When two boxes of the LED display device are spliced, the second contact convex rib of one box of the LED display device is in contact fit with the first contact convex rib of the other box of the LED display device, and the avoidance concave part of the one box is in avoidance fit with the anti-collision convex rib of the other box. Therefore, when the LED display device is placed on the ground, the anti-collision convex rib is in contact with the ground, and abrasion and collision of the first contact convex rib can be avoided. When two boxes are spliced, the contact fit of the second contact convex rib of one box and the first contact convex rib of the other box is not affected, so that the contact area between the two boxes is ensured, and the splicing is more stable. The arrangement of the avoidance concave part enables the anti-collision convex rib to extend into the avoidance concave part, so that the second contact convex rib of one box body can be in contact fit with the first contact convex rib of the other box body. Therefore, the technical scheme of the utility model effectively solves the problem that the first side plate of the box body and the ground contact plate generate abrasion and collision when the LED display device in the related technology is placed on the ground.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of an LED display device according to the present utility model;

FIG. 2 shows a schematic side view of the LED display device of FIG. 1;

FIG. 3 shows a partial enlarged view at A of the LED display device of FIG. 2;

fig. 4 shows a partial enlarged view at B of the LED display device of fig. 2;

FIG. 5 shows a schematic side view of the LED display device of FIG. 1 when two housings are spliced;

fig. 6 shows a partial enlarged view at C when two housings of the LED display device of fig. 5 are spliced.

Wherein the above figures include the following reference numerals:

10. a rear plate; 20. a first side plate; 30. a second side plate; 31. a second via hole; 40. a first contact bead; 50. anti-collision convex ribs; 51. front anti-collision convex ribs; 52. the rear bump-preventing convex rib; 60. second contact ribs; 70. avoiding the concave part; 71. a horizontal plane; 72. a vertical surface; 80. a positioning structure; 81. positioning the bulge; 90. and an LED display module.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 4, the case of the LED display device of the present embodiment includes: the rear panel 10, the first side panel 20, the second side panel 30, the first contact bead 40, the anti-collision bead 50, the second contact bead 60, and the escape recess 70. The first side plate 20 is connected to one side of the rear plate 10. The second side plate 30 is connected to the other side of the rear plate 10, and the second side plate 30 is disposed opposite to the first side plate 20. The first contact bead 40 is provided on the surface of the first side plate 20 facing away from the second side plate 30. The anti-collision rib 50 is disposed on a surface of the first side plate 20 facing away from the second side plate 30 and on a side of the first contact rib 40. The first side plate 20 includes a first side and a second side disposed opposite to each other, and two ends of the anti-collision rib 50 extend to the first side and the second side, respectively. The anti-collision bead 50 protrudes toward the outside of the rear plate 10 from the first contact bead 40. The second contact bead 60 is disposed on a surface of the second side plate 30 facing away from the first side plate 20. The escape recess 70 is provided on the surface of the second side plate 30 facing away from the first side plate 20 and on the side of the second contact bead 60. When the two boxes of the LED display device are spliced, the second contact rib 60 of one box of the LED display device is in contact fit with the first contact rib 40 of the other box of the LED display device, and the avoidance concave portion 70 of one box is in avoidance fit with the anti-collision rib 50 of the other box.

In the technical solution of the present utility model, the first side plate 20 includes a first side and a second side that are disposed opposite to each other, and two ends of the anti-collision rib 50 extend to the first side and the second side, respectively. The anti-collision rib 50 protrudes out of the first contact rib 40 toward the outside of the rear plate 10, so that when the LED display device is placed on the ground, the anti-collision rib 50 on the first side plate 20 of the case can contact with the ground, and the anti-collision rib 50 contacts with the ground, thereby avoiding the problem that the first contact rib 40 is worn and collided due to contact with the ground. The two ends of the anti-collision convex rib 50 extend to the first side edge and the second side edge respectively, so that the contact area between the anti-collision convex rib 50 and the ground is increased, and the LED display device can be more stable when being placed on the ground. The second contact bead 60 is disposed on a surface of the second side plate 30 facing away from the first side plate 20. The escape recess 70 is provided on the surface of the second side plate 30 facing away from the first side plate 20 and on the side of the second contact bead 60. When the two boxes of the LED display device are spliced, the second contact rib 60 of one box of the LED display device is in contact fit with the first contact rib 40 of the other box of the LED display device, and the avoidance concave portion 70 of one box is in avoidance fit with the anti-collision rib 50 of the other box. In this way, when the LED display device is placed on the ground, the anti-collision bead 50 is in contact with the ground, and abrasion and collision of the first contact bead 40 can be avoided. When two boxes are spliced, the contact fit of the second contact convex rib 60 of one box and the first contact convex rib 40 of the other box is not affected, so that the contact area between the two boxes is ensured, and the splicing is more stable. The relief recess 70 is provided such that the anti-collision bead 50 can extend into the relief recess 70 to enable the second contact bead 60 of one case to be in contact engagement with the first contact bead 40 of another case. Therefore, the technical scheme of the utility model effectively solves the problem that the first side plate of the box body and the ground contact plate generate abrasion and collision when the LED display device in the related technology is placed on the ground.

In this embodiment, the first side plate 20 is a rectangular side plate, the first side and the second side are wide sides of the rectangular side plate, and two ends of the anti-collision rib 50 extend along the long sides of the rectangular side plate and extend to two wide sides of the rectangular side plate. When the avoiding concave portion 70 of one case is in avoiding fit with the anti-collision rib 50 of the other case, the avoiding concave portion 70 of the one case and the anti-collision rib 50 of the other case have a fit gap in the up-down direction.

As shown in fig. 2 to 6, when the escape recess 70 of one case is in escape engagement with the anti-collision bead 50 of the other case, the escape recess 70 and the anti-collision bead 50 have an installation gap in the front-rear direction of the case. When two boxes of the LED display device are spliced, the anti-collision convex rib 50 of the other box is easier to enter the avoidance concave part 70 of the one box due to the arrangement of the installation gap, so that the efficiency of the LED display device in the box splicing process is improved.

As shown in fig. 2 to 6, both ends of the first contact bead 40 extend to the first side and the second side, respectively. The second side plate 30 includes a first side edge and a second side edge which are disposed opposite to each other, and both ends of the second contact bead 60 extend to the first side edge and the second side edge, respectively. Thus, when the second contact rib 60 of one box body is in contact fit with the first contact rib 40 of the other box body, the contact area between the second contact rib 60 of one box body and the first contact rib 40 of the other box body is larger, so that the splicing of the two box bodies is smoother and more reliable.

As shown in fig. 2 to 6, the first contact bead 40, the anti-collision bead 50, the second contact bead 60, and the escape recess 70 are two. The provision of the two anti-collision ribs 50 makes the LED display device more stable when placed on the ground. The two anti-collision ribs 50 are disposed at both sides of the two first contact ribs 40, so that the distance between the two anti-collision ribs 50 is greater, and the stability of the LED display device when placed on the ground is further improved. The two avoidance concave portions 70 are disposed at two sides of the two second contact ribs 60, so that when the two boxes are spliced, the two avoidance concave portions 70 of one box can be in avoidance fit with the two anti-collision ribs 50 of the other box.

As shown in fig. 2 to 6, the two anti-collision ribs 50 are a front anti-collision rib 51 and a rear anti-collision rib 52 which are disposed at intervals along the front-rear direction of the case, and the front anti-collision rib 51 has a predetermined gap with the front side surface of the first side plate 20. Thus, when the two LED display modules 90 on the front sides of the two boxes are spliced, the front anti-collision rib 51 is located behind the front side of the first side plate 20 by the preset gap, so that collision between the edge of the LED display module 90 on one box and the anti-collision rib 50 of the other box is avoided.

The inventor finds that in the related art, light in the box body can be emitted through the first wire through hole and the second wire through hole and then emitted from the splice joint of the two LED display modules, so that the display effect of the LED display device is affected.

In order to solve the above-mentioned problem, as shown in fig. 2 to 6, the first side plate 20 is provided with a first via hole, and the first via hole is located between two first contact ribs 40. The second side plate 30 is provided with a second via hole 31, and the second via hole 31 is located between two second contact ribs 60. After the two boxes are spliced, the second contact rib 60 of one box is in contact fit with the first contact rib 40 of the other box, the first wire passing hole is positioned between the two first contact ribs 40, and the second wire passing hole 31 is positioned between the two second contact ribs 60. In this way, the first contact rib 40 and the second contact rib 60 which are in contact fit can shield the light emitted from the first wire passing hole and the second wire passing hole 31, so as to prevent the light emitted from the first wire passing hole and the second wire passing hole 31 from being emitted from the splicing seams of the two LED display modules 90, and improve the display effect of the LED display device.

In the present embodiment, two anti-collision ribs 50 are provided at both sides of the two first contact ribs 40, and the anti-collision ribs 50 protrude from the first contact ribs 40 toward the outside of the rear plate 10. Like this, after two boxes splice, a bump protection protruding muscle 50 can be located the place ahead of contact complex first contact protruding muscle 40 and second contact protruding muscle 60 to shelter from a small amount of light that jets out in the gap of first contact protruding muscle 40 and second contact protruding muscle 60, further improved LED display device's display effect.

As shown in fig. 5 and 6, when the two cases are spliced, the two cases are positioned to fit by the positioning structure 80. The positioning structure 80 includes a positioning protrusion 81 and a positioning hole, the positioning protrusion 81 is disposed on the second side plate 30, and the positioning hole is disposed on the first side plate 20. The positioning structure 80 is convenient for alignment when two boxes are spliced, and can limit displacement of the two boxes in the front-rear direction after being spliced. The positioning protrusion 81 and the positioning hole have simple structures and are convenient to process. When the positioning protrusion 81 is provided on the second side plate 30 and the positioning hole is provided on the first side plate 20, the positioning protrusion 81 is located between the two second contact beads 60 and the positioning hole is located between the two first contact beads 40. Like this, contact matched's first contact bead 40 and second contact bead 60 can shelter from the light that jets out in the locating hole to avoid the light that jets out in the locating hole to jet out in the splice seam of two LED display module assembly 90, improved LED display device's display effect.

In an embodiment not shown in the drawings, the positioning hole is provided on the second side plate and the positioning protrusion is provided on the first side plate.

As shown in fig. 1 to 6, the rear plate 10 is a rectangular plate, the first side plate 20 is connected to a first long side of the rectangular plate, and the second side plate 30 is connected to a second long side of the rectangular plate. The first contact convex rib 40, the second contact convex rib 60, the anti-collision convex rib 50 and the avoidance concave portion 70 all extend along the length direction of the rectangular plate, the anti-collision convex rib 50 protrudes out of the first contact convex rib 40 towards the outer portion of the rectangular plate along the width direction of the rectangular plate, the second contact convex rib 60 protrudes towards the outer portion of the rectangular plate along the width direction of the rectangular plate, and the avoidance concave portion 70 is recessed towards the inner portion of the rectangular plate along the width direction of the rectangular plate. So that when the two boxes are spliced, the contact area between the second contact rib 60 of one box and the first contact rib 40 of the other box is larger, so that the splicing of the two boxes is smoother and more reliable. And when the LED display device is placed on the ground, the contact area between the second contact convex rib 60 and the ground is larger, so that the stability of the LED display device when the LED display device is placed on the ground is improved. The escape recess 70 includes a horizontal surface 71 and a vertical surface 72 connected to the horizontal surface 71, the vertical surface 72 being located between the horizontal surface 71 and the second contact bead 60 such that the horizontal surface 71 and the vertical surface 72 form a stepped structure. The stepped structure makes the structure of the escape recess 70 simple and convenient to process.

As shown in fig. 1 to 4, the rear plate 10, the first side plate 20, the second side plate 30, the first contact bead 40, the anti-collision bead 50, and the second contact bead 60 are integrally formed. Therefore, the box body of the LED display device is high in bearing capacity and strength, and is more suitable for a scene when the box body is supported on the ground through the anti-collision convex ribs 50. The integrated forming makes the processing of the box body of the LED display device simpler and more convenient, and reduces the time and cost of production.

The utility model also provides an LED display device, as shown in FIG. 1, the LED display device comprises a box body and an LED display module 90 arranged on the front side of the box body, and the box body is the box body of the LED display device. The box body of the LED display device can solve the problem that the first side plate of the box body and the ground contact plate are worn and bumped when the LED display device in the related technology is placed on the ground, so that the LED display device with the box body can solve the same technical problem. The anti-collision convex rib 50 protrudes outside the rear plate 10 from the LED display module 90, so that the anti-collision convex rib 50 can be in contact with the ground when the LED display device is placed on the ground, and the contact between the LED display module 90 and the ground is avoided.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A case of an LED display device, comprising:

a rear plate (10);

a first side plate (20) connected to one side of the rear plate (10);

a second side plate (30) connected to the other side of the rear plate (10), the second side plate (30) being disposed opposite to the first side plate (20);

a first contact bead (40) disposed on a surface of the first side plate (20) facing away from the second side plate (30);

the anti-collision convex rib (50) is arranged on the surface of the first side plate (20) deviating from the second side plate (30) and is positioned on one side of the first contact convex rib (40), the first side plate (20) comprises a first side edge and a second side edge which are oppositely arranged, two ends of the anti-collision convex rib (50) respectively extend to the first side edge and the second side edge, and the anti-collision convex rib (50) protrudes out of the first contact convex rib (40) towards the outside of the rear plate (10);

a second contact bead (60) disposed on a surface of the second side plate (30) facing away from the first side plate (20);

an avoidance recess (70) which is arranged on the surface of the second side plate (30) facing away from the first side plate (20) and is positioned on one side of the second contact rib (60);

when two boxes of the LED display device are spliced, the second contact convex rib (60) of one box of the LED display device is in contact fit with the first contact convex rib (40) of the other box of the LED display device, and the avoidance concave part (70) of one box is in avoidance fit with the anti-collision convex rib (50) of the other box.

2. The case of an LED display device according to claim 1, wherein when the escape recess (70) of one case is in escape engagement with the anti-collision bead (50) of the other case, the escape recess (70) and the anti-collision bead (50) have an installation gap in the front-rear direction of the case.

3. The case of an LED display device according to claim 1, wherein both ends of the first contact bead (40) extend to the first side and the second side, respectively; the second side plate (30) comprises a first side edge and a second side edge which are oppositely arranged, and two ends of the second contact convex rib (60) extend to the positions of the first side edge and the second side edge respectively.

4. The case of an LED display device according to claim 1, wherein the first contact bead (40), the anti-collision bead (50), the second contact bead (60), and the avoidance recess (70) are two, the anti-collision bead (50) is disposed on both sides of the two first contact beads (40), and the two avoidance recess (70) is disposed on both sides of the two second contact beads (60).

5. The case of an LED display device according to claim 4, wherein the two anti-collision ribs (50) are a front anti-collision rib (51) and a rear anti-collision rib (52) which are disposed at intervals along a front-rear direction of the case, and the front anti-collision rib (51) has a predetermined gap with a front side surface of the first side plate (20).

6. The case of the LED display device according to claim 4, wherein,

the first side plate (20) is provided with a first via hole, and the first via hole is positioned between the two first contact ribs (40);

the second side plate (30) is provided with a second wire through hole (31), and the second wire through hole (31) is positioned between the two second contact convex ribs (60).

7. The case of the LED display device according to claim 4, wherein,

when the two box bodies are spliced, the two box bodies are matched in a positioning mode through a positioning structure (80), the positioning structure (80) comprises a positioning protrusion (81) and a positioning hole, one of the positioning protrusion (81) and the positioning hole is formed in the second side plate (30), and the other one of the positioning protrusion (81) and the positioning hole is formed in the first side plate (20);

when the positioning protrusions (81) are arranged on the second side plate (30), the positioning holes are formed in the first side plate (20), the positioning protrusions (81) are located between the two second contact ribs (60), and the positioning holes are located between the two first contact ribs (40).

8. The case of the LED display device according to claim 1, wherein,

the rear plate (10) is a rectangular plate, the first side plate (20) is connected to a first long side of the rectangular plate, the second side plate (30) is connected to a second long side of the rectangular plate, the first contact convex rib (40), the second contact convex rib (60), the anti-collision convex rib (50) and the avoidance concave part (70) all extend along the length direction of the rectangular plate, the anti-collision convex rib (50) protrudes out of the first contact convex rib (40) along the width direction of the rectangular plate to the outer part of the rectangular plate, the second contact convex rib (60) protrudes out of the rectangular plate along the width direction of the rectangular plate, and the avoidance concave part (70) is recessed along the width direction of the rectangular plate to the inner part of the rectangular plate;

the avoidance concave portion (70) comprises a horizontal plane (71) and a vertical surface (72) connected with the horizontal plane (71), and the vertical surface (72) is located between the horizontal plane (71) and the second contact convex rib (60) so that the horizontal plane (71) and the vertical surface (72) form a step structure.

9. The case of an LED display device according to claim 1, wherein the rear plate (10), the first side plate (20), the second side plate (30), the first contact bead (40), the anti-collision bead (50), and the second contact bead (60) are integrally formed.

10. An LED display device comprises a box body and an LED display module (90) arranged at the front side of the box body,

the LED display device is characterized in that the box body is the box body of the LED display device according to any one of claims 1 to 9, and the anti-collision convex rib (50) protrudes out of the LED display module (90) towards the outside of the rear plate (10).