High-efficiency assembly structure of LED display screen

Abstract

A high-efficiency assembly structure of an LED display screen comprises a shell, a circuit board arranged on the shell and a mask arranged on the circuit board. A plurality of first thermoplastic columns and second thermoplastic columns which are made of thermoplastic materials are arranged on the shell at intervals. The first thermoplastic column comprises a first cylindrical part, a second cylindrical part arranged on the first cylindrical part, and a first cap part arranged on the second cylindrical part. The second thermoplastic column comprises a third cylinder part, a fourth cylinder part arranged on the third cylinder part, a fifth cylinder part arranged on the fourth cylinder part and a second cap part arranged on the fifth cylinder part. Compared with a traditional screw locking process, the first cap part and the second cap part which are formed through hot pressing have the advantages of being high in flatness, high in assembly efficiency and the like, and the lines on the second cap part can improve the attractiveness of the LED display screen and improve the ornamental value of the LED display screen.

Description

Technical Field

[0001] The utility model relates to the technical field of the preparation of LED display screens, in particular to a high-efficiency assembly structure of an LED display screen. Background Art

[0002] After years of rapid development in the LED industry, various types of display screens have emerged in an endless stream. Indoor, outdoor, curved screens, special-shaped screens, transparent screens, etc. have gradually entered people's field of vision, enriching and influencing people's lives. With the progress of social civilization and the further improvement of people's cognitive level, there is a correspondingly higher pursuit of the quality of life, and naturally the demand for LED display screens has gradually increased. Currently, the installation of LED display screens on the market generally uses glue bonding or manual or machine screwing. For example, Chinese Patent CN201820219265.4 discloses an LED display screen mask and an LED display screen, which includes a mask main body. The mask main body includes a number of matrix-arranged lamp hole grids. An LED lamp hole is opened in the middle of each lamp hole grid. A number of laterally extending convex ribs are provided on the edge of each LED lamp hole, and a laterally extending groove is opened on the back side of each convex rib. This display screen can make the flexible and stretchable mask automatically stretch to a position suitable for the lamp beads. However, the mask main body in this display screen is fastened to the PCB board through a screw structure. In this way, there may be a situation where the screwing force is uneven, reducing the flatness of the display screen, and screwing greatly reduces the installation efficiency of the display screen. Summary of the Utility Model

[0003] In view of this, the utility model provides a high-efficiency assembly structure of an LED display screen to solve the above problems.

[0004] A high-efficiency assembly structure of an LED display screen, which includes a housing, a circuit board disposed on the housing, and a mask disposed on the circuit board. A number of first thermoplastic columns and second thermoplastic columns made of thermoplastic materials are spacedly disposed on the housing. The first thermoplastic column includes a first cylindrical portion, a second cylindrical portion disposed on the first cylindrical portion, and a first cap portion disposed on the second cylindrical portion. The first cap portion is hemispherical, the maximum cross-sectional diameter of the first cap portion is greater than the circumferential cross-sectional diameter of the second cylindrical portion, and one end of the first cap portion facing the second cylindrical portion abuts against the surface of the circuit board. The second thermoplastic column includes a third cylindrical portion, a fourth cylindrical portion disposed on the third cylindrical portion, a fifth cylindrical portion disposed on the fourth cylindrical portion, and a second cap portion disposed on the fifth cylindrical portion. The second cap portion is hemispherical, the maximum cross-sectional diameter of the second cap portion is greater than the cross-sectional diameter of the fifth cylindrical portion, one end face of the second cap portion facing the third cylindrical portion abuts against the surface of the mask, and the hemispherical surface of the second cap portion has cross-shaped patterns.

[0005] Further, the housing is rectangularly arranged, and step portions for mounting the circuit board are inwardly extended at four side walls of the housing.

[0006] Further, one side surface of the circuit board facing the housing is flat, and a number of LED beads for lighting are spacedly disposed on the side of the circuit board away from the housing.

[0007] Further, the mask is in a grid structure, and a number of mesh holes for passing through the LED beads are spacedly formed on the mask.

[0008] Further, a first through hole is formed at the position of the circuit board corresponding to each first thermoplastic column, the second cylindrical portion passes through the first through hole, and the circumferential outer side wall of the second cylindrical portion is in clearance contact with the circumferential inner side wall of the first through hole.

[0009] Further, second through holes and third through holes are respectively formed at the positions of the circuit board and the mask corresponding to each second thermoplastic column.

[0010] Further, the fourth cylindrical portion passes through the second through hole, and the circumferential outer side wall of the fourth cylindrical portion is in clearance contact with the circumferential inner side wall of the second through hole.

[0011] Further, the fifth cylindrical portion passes through the third through hole, and the circumferential outer side wall of the fifth cylindrical portion is in clearance contact with the circumferential inner side wall of the third through hole.

[0012] Compared with the prior art, the high-efficiency assembly structure of the LED display provided by the utility model contacts the first and third perforated gaps through the second and fifth cylindrical parts respectively, thus limiting the movement of the circuit board and the mask in the horizontal direction, thereby stabilizing the structure of the LED display and improving the structural strength of the LED display. The first and second cap parts formed by hot pressing have the advantages of high flatness and high assembly efficiency compared with the traditional screw locking process, and the texture on the second cap part can further improve the aesthetics of the LED display and enhance its viewing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a partial structural schematic diagram of the high-efficiency assembly structure of the LED display screen provided by the utility model.

[0014] Figure 2 for Figure 1 A schematic diagram of the structure of a shell having a high-efficiency assembly structure of an LED display screen.

[0015] Figure 3 for Figure 1 A schematic diagram of the structure of a circuit board having a high-efficiency assembly structure of an LED display.

[0016] Figure 4 for Figure 1 Schematic diagram of the structure of the mask of the high-efficiency assembly structure of the LED display.

[0017] Figure 5 for Figure 3 A magnified schematic diagram of center A.

[0018] Figure 6 for Figure 2 A magnified schematic diagram of point B in the middle. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0020] like Figure 1 As shown, it is a partial structural schematic diagram of the high-efficiency assembly structure of the LED display screen provided by the utility model. The high-efficiency assembly structure of the LED display screen includes a housing 10, a circuit board 20 arranged on the housing 10, and a plurality of masks 30 arranged on the circuit board 20. It can be imagined that the high-efficiency assembly structure of the LED display screen also includes some other functional modules, such as a heat pressing module, a power supply module, etc., which are technologies well known to those skilled in the art and will not be described one by one here.

[0021] Please refer to it together Figures 2 to 6 The housing 10 is rectangularly arranged, and at the four side walls of the housing 10, there are inwardly extending stepped portions 11 for mounting the circuit board 20. A number of first thermoplastic columns 12 and second thermoplastic columns 13 are spacedly arranged on the housing 10. The first and second thermoplastic columns 12 and 13 are made of thermoplastic materials, specifically polyethylene (PE), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), etc.

[0022] One side surface of the circuit board 20 facing the housing 10 is flat, so that it can be stably mounted on the stepped portions 11 and the first and second thermoplastic columns 12 and 13. A number of LED lamp beads 21 for lighting are spacedly arranged on the side of the circuit board 20 away from the housing 10.

[0023] The mask 30 is in a grid structure, and a number of mesh holes 31 for passing through the LED lamp beads 21 are spacedly arranged on the mask 30. In this way, while the mask 30 provides protection for the circuit board 20, it does not affect the light emitted by the LED lamp beads 21.

[0024] At the position of each first thermoplastic column 12 corresponding to the circuit board 20, a first through hole 22 is provided. At the positions corresponding to each second thermoplastic column 13 on the circuit board 20 and the mask 30, a second through hole 23 and a third through hole 32 are respectively provided. The first thermoplastic column 12 passes through the first through hole 22, and the second thermoplastic column 13 passes through the second and third through holes 23 and 32, thus pressing the circuit board 20 and the mask 30 and fixing them on the housing 10 to form an LED display screen. The specific pressing situation will be described below.

[0025] The first thermoplastic column 12 includes a first cylindrical portion 121, a second cylindrical portion 122 provided on the first cylindrical portion 121, and a first cap portion 123 provided on the second cylindrical portion 122.

[0026] A number of the first thermoplastic columns 12 are evenly distributed on the housing 10, and the first cylindrical portion 121 is at the same height as the stepped portion 11, thus supporting the circuit board 20, and the supporting force points are evenly distributed, thereby improving the flatness of the module.

[0027] The second cylindrical portion 122 passes through the first through hole 22, and the circumferential outer wall of the second cylindrical portion 122 is in clearance contact with the circumferential inner wall of the first through hole 22, thus stabilizing the circuit board 20 in the horizontal direction.

[0028] The first cap portion 123 is hemispherical after hot pressing operation, and the maximum cross-sectional diameter of the first cap portion 123 is greater than the circumferential cross-sectional diameter of the second cylindrical portion 122, so that one end of the first cap portion 123 facing the second cylindrical portion 122 abuts against the surface of the circuit board 20, thereby pressing and fixing the circuit board 20.

[0029] The second thermoplastic column 13 includes a third cylindrical portion 131, a fourth cylindrical portion 132 disposed on the third cylindrical portion 131, a fifth cylindrical portion 133 disposed on the fourth cylindrical portion 132, and a second cap portion 134 disposed on the fifth cylindrical portion 133.

[0030] A plurality of the second thermoplastic columns 12 are evenly distributed on the housing 10, and the third cylindrical portion 131 is at the same height as the step portion 11, so as to support the circuit board 20, and the supporting force points are evenly distributed, thereby further improving the flatness of the module.

[0031] The fourth cylindrical portion 132 passes through the second through hole 23, and the circumferential outer wall of the fourth cylindrical portion 132 is in clearance contact with the circumferential inner wall of the second through hole 23, so as to further stabilize the circuit board 20 in the horizontal direction. The fourth cylindrical portion 132 protrudes from the surface of the circuit board 20, so that the end surface of the protruding portion of the fourth cylindrical portion 132 is used to support the mask 30.

[0032] The fifth cylindrical portion 133 passes through the third through hole 32, and the circumferential outer wall of the fifth cylindrical portion 133 is in clearance contact with the circumferential inner wall of the third through hole 32, so as to be able to stabilize the mask 30 in the horizontal direction, thereby improving the structural strength of the LED display screen.

[0033] The second cap portion 134 is hemispherical after hot pressing operation, and the maximum cross-sectional diameter of the second cap portion 134 is greater than the cross-sectional diameter of the fifth cylindrical portion 133, so that one end surface of the second cap portion 134 facing the third cylindrical portion 15 abuts against the surface of the mask 30, so as to press and fix the mask 30.

[0034] On the side of the second cap portion 134 away from the fifth cylindrical portion 133, that is, the hemispherical surface of the second cap portion 134 has cross-shaped lines, and the lines are similar to the leather lines on the mask 30, so as to avoid causing an abrupt phenomenon and improve the aesthetics of the LED display screen.

[0035] In another embodiment, the first and second cap parts 123 and 134 are formed into blocks after hot pressing, so that the circuit board 20 and the mask 30 are pressed and fixed, and the block-shaped second cap part 134 is closer to the grid-structured mask 30, thereby improving the viewing experience of the LED display screen.

[0036] Compared with the prior art, the high-efficiency assembly structure of the LED display provided by the utility model is that the second and fifth cylindrical parts 122 and 133 are in gap contact with the first and third perforations 22 and 32 respectively, so that the movement of the circuit board 20 and the mask 30 is restricted in the horizontal direction, thereby stabilizing the structure of the LED display and improving the structural strength of the LED display. The first and second cap parts 123 and 134 formed by hot pressing have the advantages of high flatness and high assembly efficiency compared with the traditional screw locking process. The texture on the second cap part 134 can further improve the aesthetics of the LED display and enhance its viewing experience.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A high-efficiency assembly structure for an LED display screen, characterized in that: The high-efficiency assembly structure of the LED display screen includes a shell, a circuit board arranged on the shell, and a mask arranged on the circuit board. The shell is provided with a plurality of first thermoplastic columns and second thermoplastic columns made of thermoplastic material at intervals. The first thermoplastic column includes a first cylindrical portion, a second cylindrical portion arranged on the first cylindrical portion, and a first cap portion arranged on the second cylindrical portion. The first cap portion is hemispherical, and the maximum cross-sectional diameter of the first cap portion is greater than the circumferential cross-sectional diameter of the second cylindrical portion. The first cap portion faces One side end of the second cylindrical portion abuts against the surface of the circuit board, the second thermoplastic column includes a third cylindrical portion, a fourth cylindrical portion arranged on the third cylindrical portion, a fifth cylindrical portion arranged on the fourth cylindrical portion, and a second cap portion arranged on the fifth cylindrical portion, the second cap portion is hemispherical, the maximum cross-sectional diameter of the second cap portion is greater than the cross-sectional diameter of the fifth cylindrical portion, the end surface of the second cap portion facing the third cylindrical portion abuts against the surface of the mask, and the hemispherical surface of the second cap portion has a cross-shaped pattern.

2. The high-efficiency assembly structure of the LED display screen according to claim 1, characterized in that: The housing is rectangular in shape, and step portions for mounting the circuit board are provided on four side walls of the housing extending inward.

3. The high-efficiency assembly structure of the LED display screen according to claim 1, characterized in that: The surface of the circuit board on one side facing the shell is flat, and a plurality of LED lamp beads for lighting are arranged at intervals on the side of the circuit board away from the shell.

4. The high-efficiency assembly structure of the LED display screen according to claim 3 is characterized in that: The mask is in a grid structure, and a plurality of mesh holes for passing the LED lamp beads are arranged at intervals on the mask.

5. The high-efficiency assembly structure of the LED display screen according to claim 1, characterized in that: The circuit board is provided with a first through hole at a position corresponding to each of the first thermoplastic columns, the second cylindrical portion passes through the first through hole, and the circumferential outer side wall of the second cylindrical portion is in gap contact with the circumferential inner side wall of the first through hole.

6. The high-efficiency assembly structure of the LED display screen according to claim 1, characterized in that: The circuit board and the mask are respectively provided with a second through hole and a third through hole at a position corresponding to each of the second thermoplastic columns.

7. The high-efficiency assembly structure of the LED display screen according to claim 6, characterized in that: The fourth cylindrical portion passes through the second through hole, and the circumferential outer side wall of the fourth cylindrical portion is in gap contact with the circumferential inner side wall of the second through hole.

8. The high-efficiency assembly structure of the LED display screen according to claim 6, characterized in that: The fifth cylindrical portion passes through the third through hole, and the circumferential outer side wall of the fifth cylindrical portion is in gap contact with the circumferential inner side wall of the third through hole.

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