CN211787990U

CN211787990U - LED display screen

Info

Publication number: CN211787990U
Application number: CN202020528370.3U
Authority: CN
Inventors: 邢映彪; 何俊华; 廖晓亮
Original assignee: Guangzhou Tongbada Electric Technology Co ltd; Guangzhou Tongda Auto Electric Co Ltd
Current assignee: Guangzhou Tongbada Electric Technology Co ltd; Guangzhou Tongda Auto Electric Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-10-27
Anticipated expiration: 2030-04-10

Abstract

The utility model discloses a LED display screen, which comprises a bottom shell, a circuit board and a light-permeable face cover, wherein the periphery of the bottom shell is bent to form a first frame; the periphery of the surface cover is bent to form a second frame, the second frame is abutted against the first frame, the surface cover is connected with the bottom shell, and a closed space is formed between the surface cover and the bottom shell; the circuit board sets up in airtight space and connects on the drain pan, and the one side that the circuit board faced the face lid is equipped with the LED dot matrix. The utility model discloses LED display screen is through bending around the drain pan and forming first frame, bending around the face lid and forming the second frame, the face lid directly with drain pan fixed connection and first frame and second frame butt, thereby can furthest improve the ratio that the display area accounted for the frontal area, make under the same display area, the volume of LED display screen can accomplish compactest; and the integrated face cover does not have a boundary line between the frame and the face cover in the prior art, so that the appearance is more attractive, and the visual effect is excellent.

Description

LED display screen

Technical Field

The utility model relates to a display screen technical field especially relates to a LED display screen.

Background

The current commonly used LED display screen structure has the following two forms: (1) the section bar frame is in a form that four corners of the section bar frame are butted by wrap angles, a display area is blocked by a transparent adhesive tape, the periphery of the transparent adhesive tape is clamped in a clamping groove reserved for the section bar frame and the wrap angles, the back surface of the transparent adhesive tape is sealed by an aluminum plate, and the periphery of the aluminum plate is fixed on the frame by self-tapping screws. (2) Sheet metal shell structural style, main part frame construction are bent by the panel beating and are welded the equipment and form, and the front display area is fixed to the sheet metal frame structure through bonding or fastener on, and the back passes through aluminum plate and seals, and aluminum plate passes through the fix with screw all around to the sheet metal frame on.

Both of the above structural forms have the following drawbacks: the frame needs to be made wider, the structure cannot be made compact, and the front surface is provided with a boundary line between the frame and the surface cover, so that the appearance is not attractive, and the visual effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compact structure and more pleasing to the eye LED display screen of outward appearance.

To achieve the purpose, the utility model adopts the following technical proposal:

an LED display screen comprising:

the periphery of the bottom shell is bent to form a first frame;

the periphery of the surface cover is bent to form a second frame, the second frame is abutted against the first frame, the surface cover is connected with the bottom shell, and a closed space is formed between the surface cover and the bottom shell; and

the circuit board is arranged in the closed space and connected to the bottom shell, and an LED dot matrix is arranged on one surface, facing the surface cover, of the circuit board.

In some embodiments, a circle of first grooves is formed in the first frame, a sealing ring is arranged in the first grooves, the thickness of the sealing ring is larger than the depth of the first grooves, and a circle of second grooves corresponding to the first grooves is formed in the second frame.

In some embodiments, the seal ring is a silicone seal ring.

In some embodiments, the bottom shell and the face cover are connected by a first threaded fastener.

In some embodiments, a first mounting hole is formed in the first frame of the bottom shell, a first internal threaded column corresponding to the first mounting hole is formed in the second frame of the face cover, and the first threaded fastener is inserted into the first mounting hole and is in threaded connection with the first internal threaded column.

In some embodiments, a second mounting hole is formed in the circuit board, a second internal threaded column is formed in one surface of the bottom case facing the face cover, and the circuit board is connected with the bottom case through a second threaded fastener penetrating through the second mounting hole and the second internal threaded column.

In some embodiments, the bottom case is provided with a support rib on a side facing the front cover to support the circuit board.

In some embodiments, the number of the support ribs is multiple, and the multiple support ribs are arranged in a crossed manner to form a grid-shaped structure.

In some embodiments, a wire hole is formed in the bottom shell, and a waterproof joint is connected to the wire hole; the LED display screen further comprises a wiring harness, one end of the wiring harness is electrically connected with the circuit board, and the other end of the wiring harness penetrates through the waterproof connector and extends out of the bottom shell.

In some embodiments, the bottom case is an injection molded plastic part.

The utility model discloses LED display screen has following beneficial effect at least: the periphery of the bottom shell is bent to form a first frame, the periphery of the face cover is bent to form a second frame, the face cover is directly and fixedly connected with the bottom shell, and the first frame is abutted to the second frame, so that the ratio of the display area to the front area (namely the screen occupation ratio) can be improved to the maximum extent, and the volume of the LED display screen can be made to be the most compact under the same display area; and the integrated face cover does not have a boundary line between the frame and the face cover in the prior art, so that the appearance is more attractive and the visual effect is excellent.

Drawings

Fig. 1 is a schematic structural diagram of an LED display screen according to an embodiment of the present invention;

fig. 2 is a front view of an LED display screen provided in an embodiment of the present invention;

fig. 3 is a rear view of an LED display screen according to an embodiment of the present invention;

FIG. 4 is an exploded view of the LED display screen of FIG. 1;

FIG. 5 is a schematic structural diagram of a bottom case of the LED display screen shown in FIG. 4;

FIG. 6 is a partial structural view of the bottom housing shown in FIG. 5;

the reference numbers illustrate:

the structure comprises a bottom shell 10, a first frame 11, a first groove 12, a first mounting hole 13, a second internal threaded column 14, a support rib 15, a wire hole 16, a face cover 20, a second frame 21, a circuit board 30, a sealing ring 40, a waterproof joint 50 and a wiring harness 60.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The present embodiment provides an LED display screen, as shown in fig. 1 to 6, the LED display screen includes a bottom shell 10, a circuit board 30 and a transparent cover 20, wherein the periphery of the bottom shell 10 is bent to form a first frame 11; the periphery of the transparent face cover 20 is bent to form a second frame 21, the second frame 21 is abutted against the first frame 11, the face cover 20 is connected with the bottom shell 10, and a closed space is formed between the face cover 20 and the bottom shell 10; the circuit board 30 is disposed in the enclosed space and connected to the bottom case 10, and an LED dot matrix is disposed on a surface of the circuit board 30 facing the cover 20.

In the LED display screen, the periphery of the bottom shell 10 is bent to form the first frame 11, the periphery of the face cover 20 is bent to form the second frame 21, the face cover 20 is directly and fixedly connected with the bottom shell 10, and the first frame 11 is abutted to the second frame 21, so that the ratio of the display area to the front area (namely the screen occupation ratio) can be improved to the maximum extent, and the volume of the LED display screen can be made to be the most compact under the same display area; and the integrated face cover 20 does not have a boundary line between the frame and the face cover 20 in the prior art, so that the appearance is more attractive and the visual effect is excellent.

Specifically, the LED dot matrix on the circuit board 30 emits light to display text content during operation, the text content can be set according to actual requirements, and people can see the text content through the transparent cover 20.

Since there may be a gap between the cover 20 and the bottom case 10, the waterproof and dustproof grade is not high. In order to solve this problem, as shown in fig. 4 to 6, a circle of first grooves 12 is formed on the first frame 11, a seal ring 40 is disposed in the first grooves 12, the thickness of the seal ring 40 is greater than the depth of the first grooves 12, and a circle of second grooves (not shown) corresponding to the first grooves 12 is formed on the second frame 21. Because the thickness of sealing washer 40 is greater than the degree of depth of recess, consequently sealing washer 40 has partly protrusion outside first recess 12, when first frame 11 and second frame 21 butt, the part of sealing washer 40 protrusion in first recess 12 will get into in the second recess to realize good waterproof dustproof effect.

In some embodiments, the bottom housing 10 is an injection molded plastic part. Alternatively, the sealing ring 40 may be, but is not limited to, a silicone sealing ring 40 or a rubber sealing ring 40.

In some embodiments, bottom shell 10 and face cover 20 are connected by a first threaded fastener. Specifically, the cover 20 is fixedly connected to the bottom case 10 by a first threaded fastener (e.g., a screw) penetrating from the back of the bottom case 10, so that the circuit board 30 is located in the enclosed space formed by the cover 20 and the bottom case 10.

As shown in fig. 3, 5 and 6, in some embodiments, the first frame 11 of the bottom shell 10 is provided with a first mounting hole 13, the second frame 21 of the face cover 20 is provided with a first internal threaded post (not shown) corresponding to the first mounting hole 13, and the first threaded fastener is inserted into the first mounting hole 13 and is in threaded connection with the first internal threaded post. Specifically, the number of the first mounting holes 13 is plural, the plural first mounting holes 13 are distributed at intervals along the circumferential direction of the first frame 11, and the number of the first internal threaded columns is the same as the number of the first mounting holes 13, and the positions of the first internal threaded columns correspond to the positions of the first internal threaded columns.

In some embodiments, the circuit board 30 is provided with a second mounting hole, a second internally threaded post 14 is provided on a side of the bottom case 10 facing the face cover 20 (as shown in fig. 3, 5 and 6), and the circuit board 30 is connected to the bottom case 10 through a second threaded fastener penetrating through the second mounting hole and the second internally threaded post 14, that is, the circuit board 30 is fixed to the bottom case 10 through the second threaded fastener. Preferably, the number of the second mounting holes is multiple, so that the connection is more stable, and the number of the second internally threaded columns 14 is the same as the number of the second mounting holes and corresponds to the positions of the second mounting holes one by one.

Further, the bottom chassis 10 is provided with support ribs 15 on a side thereof facing the face cover 20 to support the circuit board 30, as shown in fig. 5 and 6. In some embodiments, the number of the support ribs 15 is multiple, and the multiple support ribs 15 are arranged in a crossing manner to form a grid-like structure, so that a better support effect can be achieved.

Referring to fig. 1, 4 and 5, a wire hole 16 is formed on the bottom case 10, and a waterproof joint 50 is connected to the wire hole 16; the LED display screen further comprises a wiring harness 60, one end of the wiring harness 60 is electrically connected with the circuit board 30, the other end of the wiring harness 60 penetrates through the waterproof connector 50 and extends out of the bottom shell 10, and the circuit board 30 can be connected with an external power supply through the wiring harness 60 to supply power for the circuit board 30.

When the LED display screen is assembled, the back face (the face without the LED dot matrix) of the circuit board 30 faces the bottom shell 10, the circuit board 30 is fixed on the bottom shell 10 through the second threaded fastener, the wire harness 60 penetrates through the waterproof joint 50 at the wire hole 16 of the bottom shell 10, the sealing ring 40 is placed in the first groove 12 on the first frame 11, the face cover 20 is fixed together with the bottom shell 10 through the first threaded fastener penetrating from the back face of the bottom shell 10, and after the fixing, the sealing ring 40 seals the gap between the bottom shell 10 and the face cover 20 in butt joint, so that the waterproof and dustproof effects are achieved.

It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An LED display screen, comprising:

the device comprises a bottom shell (10), wherein the periphery of the bottom shell (10) is bent to form a first frame (11);

the light-permeable face cover (20), the periphery of the face cover (20) is bent to form a second frame (21), the second frame (21) is abutted against the first frame (11), the face cover (20) is connected with the bottom shell (10), and a closed space is formed between the face cover and the bottom shell; and

the circuit board (30) is arranged in the closed space and connected to the bottom shell (10), and an LED dot matrix is arranged on one surface, facing the surface cover (20), of the circuit board (30).

2. The LED display screen according to claim 1, wherein a circle of first grooves (12) are formed in the first frame (11), a sealing ring (40) is arranged in the first grooves (12), the thickness of the sealing ring (40) is larger than the depth of the first grooves (12), and a circle of second grooves corresponding to the first grooves (12) are formed in the second frame (21).

3. LED display screen according to claim 2, characterised in that the sealing ring (40) is a silicone sealing ring (40).

4. LED display screen according to any of claims 1 to 3, characterised in that the bottom shell (10) is connected with the face cover (20) by means of a first threaded fastener.

5. The LED display screen according to claim 4, wherein a first mounting hole (13) is formed in a first frame (11) of the bottom casing (10), a first internal threaded column corresponding to the first mounting hole (13) is formed in a second frame (21) of the face cover (20), and the first threaded fastener is inserted into the first mounting hole (13) and is in threaded connection with the first internal threaded column.

6. The LED display screen according to claim 1, wherein a second mounting hole is formed in the circuit board (30), a second internal threaded column (14) is formed in a surface of the bottom case (10) facing the face cover (20), and the circuit board (30) is connected to the bottom case (10) through a second threaded fastener penetrating through the second mounting hole and the second internal threaded column (14).

7. LED display screen according to claim 1, 2 or 6, characterised in that the bottom shell (10) is provided on its side facing the front cover (20) with support ribs (15) for supporting the circuit board (30).

8. The LED display screen according to claim 7, wherein the number of the support ribs (15) is multiple, and the multiple support ribs (15) are arranged in a cross manner to form a grid-shaped structure.

9. The LED display screen according to claim 1, wherein a line hole (16) is formed in the bottom shell (10), and a waterproof joint (50) is connected to the line hole (16);

the LED display screen further comprises a wiring harness (60), one end of the wiring harness (60) is electrically connected with the circuit board (30), and the other end of the wiring harness (60) penetrates through the waterproof connector (50) and extends out of the bottom shell (10).

10. LED display screen according to claim 1, characterised in that the bottom shell (10) is an injection moulded plastic part.