Rear cover structure of LED display screen

Abstract

The utility model relates to the technical field of LED display screens, in particular to an LED display screen rear cover structure which comprises a rear cover, a plurality of heat dissipation grooves are formed in the front end face of the rear cover, an installation frame is installed at the position, outside the heat dissipation grooves, of the front end face of the rear cover, connecting shafts are fixed to the bottom ends of the two side walls of the installation frame, and strip-shaped grooves are formed in the two ends of the top of the installation frame. A sliding hole is formed in the inner wall of the strip-shaped groove; a dust filter screen is mounted in the opening of the bracket; the heat dissipation groove is formed in the rear cover, heat dissipation of the interior of the display screen is facilitated, the dust filtering net is arranged on the front side of the heat dissipation groove, external dust and other foreign matter can be prevented from entering the interior of the display screen, the heat dissipation groove is formed in the rear cover of the LED display screen and matched with the dust filtering net on the front side, the heat dissipation performance of the display screen is remarkably improved, and the service life of the display screen is prolonged. And external dust and other foreign matters are effectively prevented from invading, and the service life of the display screen is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, in particular to a rear cover structure of an LED display screen. Background Art

[0002] LED display is a display device that controls semiconductor light-emitting diodes. It is composed of tens to hundreds of thousands of semiconductor light-emitting diode pixels arranged evenly. LED display can display various information such as text, graphics, images, animations, market conditions, videos, video signals, etc. It is an important device in the field of modern information display. LED display is mainly composed of a shell, a rear cover, a metal frame and a display unit, and the rear cover has a detachable function.

[0003] The utility model patent with the authorization announcement number CN206212555U discloses a heat dissipation back cover and an LED display screen, which includes a body made of graphene-based composite plastic, the body having a heat dissipation structure, the heat dissipation structure is located on the side of the body away from the heat source of the LED display screen, and corresponds to the heat source of the LED display screen, and the heat dissipation structure is a plurality of fins arranged on the body in parallel and at equal intervals. The heat dissipation back cover is made of graphene composite plastic to make the body, and the overall weight is lighter under the same volume. By utilizing the material properties of the graphene composite plastic, the heat of the LED display screen can be conducted to the outside through the body, and at the same time, a heat dissipation structure is added to the body, the heat dissipation structure corresponds to the heat source of the LED display screen, and the heat of the heat source can be concentratedly dissipated, and the heat dissipation structure is a plurality of fins arranged on the body in parallel and at equal intervals. When the heat source of the LED display screen abuts against one side of the body, contact heat conduction is formed, and each fin located on the other side of the body is connected to the body at one end and extends to the outside at the other end, thereby directly transferring the heat of the heat source to the outside air. In this way, the arrangement of the exhaust structure can be reduced, so that the volume of the heat dissipation rear cover can be smaller.

[0004] Although the heat dissipation back cover and LED display screen improve the heat dissipation effect of the display screen, the device still has the following problems in actual use: when the heat dissipation structure and air outlet set by the device are in use, foreign matter such as dust from the outside will directly enter the interior of the display screen, and long-term dust accumulation can easily lead to short circuits and other faults in the internal components of the device. In view of this, we propose a back cover structure for an LED display screen. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a rear cover structure of an LED display screen.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] The rear cover structure of an LED display screen includes a rear cover. Multiple heat dissipation grooves are provided on the front end face of the rear cover. An installation frame is installed outside the multiple heat dissipation grooves on the front end face of the rear cover. Connecting shafts are fixed at the bottom ends of both side walls of the installation frame. Bar-shaped grooves are provided at both ends of the top of the installation frame, and sliding holes are provided in the inner walls of the bar-shaped grooves.

[0008] A slider is slidably installed in the bar-shaped groove. A fixing rod is coaxially fixed on the slider. The fixing rod passes through the slider. One end of the fixing rod passes through the sliding hole and is slidably connected to the sliding hole. The other end of the fixing rod passes through the installation frame. First springs are sleeved on the fixing rods, and one end of each first spring abuts against the slider.

[0009] A support is inserted into the opening of the installation frame. Connecting plates are fixed at the four corners of the opening of the support. Second springs are installed on the rear end faces of the connecting plates, and the rear ends of the second springs abut against the rear cover. A dust filter net is installed in the opening of the support.

[0010] Rotatable connecting bars are installed on both sides of the installation frame. The connecting shafts pass through the bottom ends of the connecting bars and are rotatably connected to the connecting bars. Fixing holes are provided at the top ends of the connecting bars, and the ends of the fixing rods are inserted and matched with the fixing holes. A baffle is fixed at the front side between the two connecting bars, and the baffle abuts against the support. Multiple air holes are provided on the baffle.

[0011] Furthermore, a support is installed below the front end face of the rear cover, and the support is fixedly connected to the rear cover by bolts.

[0012] Furthermore, the cross-sectional shape of the installation frame is in the shape of a square, and the installation frame is fixedly connected to the rear cover by bolts.

[0013] Furthermore, a groove is provided at the top of the installation frame, and the cross-sectional shape of the groove is rectangular.

[0014] Furthermore, the cross-sectional shape of the heat dissipation groove is rectangular, and the multiple heat dissipation grooves are distributed in a matrix.

[0015] Furthermore, the connecting bar and the baffle are of an integrally formed structure, and both the connecting bar and the baffle are made of plastic.

[0016] Furthermore, the cross-sectional shape of the support is in the shape of a square, and the support and the connecting plate are fixedly connected by bolts.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] 1. By providing heat dissipation grooves at the rear cover, it is conducive to the heat dissipation inside the display screen. The dust filter net provided on the front side of the heat dissipation grooves can prevent foreign matters such as dust from the outside from entering the inside of the display screen. This design, by setting heat dissipation grooves at the rear cover of the LED display screen and matching with the dust filter net on the front side, not only significantly improves the heat dissipation performance of the display screen, but also effectively prevents the intrusion of foreign matters such as dust from the outside, and extends the service life of the display screen.

[0019] 2. By providing a flip - up baffle and a detachable bracket, it is convenient to disassemble and assemble the dust filter net, and thus convenient to clean the dust filter net to maintain its good filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is one of the overall structural schematic diagrams of the present utility model;

[0021] Figure 2 is the second of the overall structural schematic diagrams of the present utility model;

[0022] Figure 3 is the overall exploded structural schematic diagram of the present utility model;

[0023] Figure 4 is the structural schematic diagram of the mounting frame in the present utility model;

[0024] Figure 5 is the structural schematic diagram of the bracket in the present utility model.

[0025] In the figure:

[0026] 1. Rear cover; 10. Heat dissipation groove; 11. Mounting frame; 111. Connecting shaft; 112. Groove; 113. Strip - shaped groove; 114. Slide hole; 12. Slide block; 13. Fixed rod; 14. First spring; 15. Bracket; 150. Connecting plate; 151. Second spring; 16. Dust filter net; 17. Connecting strip; 170. Fixed hole; 18. Baffle; 180. Air hole; 19. Support. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] This embodiment provides a technical solution:

[0029] Please refer to Figures 1 - 5As shown, the rear cover structure of the LED display screen includes a rear cover 1. Multiple heat dissipation slots 10 are provided on the front end face of the rear cover 1. An installation frame 11 is installed outside the multiple heat dissipation slots 10 on the front end face of the rear cover 1. Connecting shafts 111 are fixed at the bottom ends of both side walls of the installation frame 11. Strip-shaped slots 113 are provided at both ends of the top of the installation frame 11. Slide holes 114 are provided on the inner walls of the strip-shaped slots 113; A slider 12 is slidably installed in the strip-shaped slot 113. A fixing rod 13 is coaxially fixed on the slider 12. The fixing rod 13 passes through the slider 12. One end of the fixing rod 13 passes through the slide hole 114 and is slidably connected to the slide hole 114. The other end of the fixing rod 13 passes through the installation frame 11; A first spring 14 is sleeved on the fixing rod 13, and one end of the first spring 14 abuts against the slider 12; A support 15 is inserted into the opening of the installation frame 11. Connecting plates 150 are fixed at the four corners inside the opening of the support 15. A second spring 151 is installed on the rear end face of the connecting plate 150, and the rear end of the second spring 151 abuts against the rear cover 1. A dust filter net 16 is installed inside the opening of the support 15; Rotatable connecting bars 17 are installed on both sides of the installation frame 11. The connecting shaft 111 passes through the bottom end of the connecting bar 17 and is rotatably connected to the connecting bar 17. A fixing hole 170 is provided at the top end of the connecting bar 17, and the end of the fixing rod 13 is inserted and matched with the fixing hole 170; A baffle 18 is fixed at the front side between the two connecting bars 17, and the baffle 18 abuts against the support 15. Multiple air holes 180 are provided on the baffle 18.

[0030] In this embodiment, a support 19 is installed below the front end face of the rear cover 1, and the support 19 is fixedly connected to the rear cover 1 by bolts. The setting of the support 19 facilitates the installation of the display screen feet, and the bolt fixing method ensures the reliable installation of the support 19.

[0031] In this embodiment, the cross-sectional shape of the installation frame 11 is in a square shape, and the installation frame 11 is fixedly connected to the rear cover 1 by bolts. The square-shaped design facilitates the installation of the support 15 inside the opening of the installation frame 11, and the bolt fixing method ensures the reliable installation of the installation frame 11.

[0032] In this embodiment, a groove 112 is provided at the top of the installation frame 11, and the cross-sectional shape of the groove 112 is rectangular. The setting of the groove 112 facilitates the user to flip the baffle 18, improving the convenience of operation.

[0033] In this embodiment, the cross-sectional shape of the heat dissipation slot 10 is rectangular, and the multiple heat dissipation slots 10 are distributed in a matrix. The rectangular cross-sectional design is conducive to air circulation and improves the heat dissipation efficiency. The multiple heat dissipation slots are distributed in a matrix, further increasing the heat dissipation area, enabling the heat inside the display screen to be dissipated to the external environment faster, and ensuring the long-term stable operation of the display screen.

[0034] In this embodiment, the connecting bar 17 and the baffle 18 are of an integrally formed structure, and both the connecting bar 17 and the baffle 18 are made of plastic material. The integrally formed structure improves the overall strength and durability of the connecting bar 17 and the baffle 18. The selection of plastic material makes the connecting bar 17 and the baffle 18 both light and have a certain toughness, ensuring their service life.

[0035] In this embodiment, the cross-sectional shape of the bracket 15 is in a square shape, and the bracket 15 and the connecting plate 150 are fixedly connected by bolts. This design ensures the connection reliability and stability between the bracket 15 and the connecting plate 150, and the square shape setting facilitates the installation of the dust filter net 16 inside the opening of the bracket 15.

[0036] It can be understood that a dial groove is provided at the top of the slider 12 in this embodiment. By means of the dial groove, it is convenient to push the slider 12 to move horizontally, thereby facilitating the adjustment of the position of the fixing rod 13 and further facilitating the release of the restriction on the connecting bar 17.

[0037] It should be added that a plurality of air holes 180 in this embodiment are arranged in a matrix. As a heat dissipation channel, the matrix arrangement of the air holes 180 can maximize the heat dissipation area, enabling the air flow to enter and exit the display screen more evenly and quickly, ensuring the heat dissipation effect of the display screen.

[0038] When it is necessary to take out the dust filter net 16 for cleaning, the user first pushes the slider 12 from both sides towards the inside. The slider 12 drives the fixing rod 13 to move, and the first spring 14 is compressed. At this time, the end of the fixing rod 13 retracts into the strip-shaped groove 113, and the restriction of the fixing rod 13 on the connecting bar 17 is released. Subsequently, the user flips the baffle 18 forward and downward, and the baffle 18 disengages from the mounting bracket 11. At the same time, under the elastic action of the second spring 151, the bracket 15 is ejected forward, and the bracket 15 can be removed, and then the dust filter net 16 can be cleaned.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A back cover structure of an LED display screen, comprising a back cover (1), characterized in that: The front end surface of the rear cover (1) is provided with a plurality of heat dissipation grooves (10); a mounting frame (11) is installed on the front end surface of the rear cover (1) outside the plurality of heat dissipation grooves (10); connecting shafts (111) are fixed at the bottom ends of both side walls of the mounting frame (11); strip grooves (113) are provided at both ends of the top of the mounting frame (11); and a sliding hole (114) is provided on the inner wall of the strip groove (113); A slider (12) is slidably installed in the strip groove (113), a fixing rod (13) is coaxially fixed on the slider (12), the fixing rod (13) passes through the slider (12), one end of the fixing rod (13) passes through the sliding hole (114) and is slidably connected to the sliding hole (114), and the other end of the fixing rod (13) passes through the mounting frame (11); a first spring (14) is sleeved on the fixing rod (13), and one end of the first spring (14) is pressed against the slider (12); A bracket (15) is inserted into the opening of the mounting frame (11), connecting plates (150) are fixed at the four corners of the opening of the bracket (15), a second spring (151) is installed on the rear end surface of the connecting plate (150), and the rear end of the second spring (151) is pressed against the rear cover (1), and a dust filter (16) is installed in the opening of the bracket (15); A reversible connecting strip (17) is installed on both sides of the mounting frame (11); a connecting shaft (111) passes through the bottom end of the connecting strip (17) and is rotatably connected to the connecting strip (17); a fixing hole (170) is provided at the top end of the connecting strip (17); and the end of the fixing rod (13) is plugged into and matched with the fixing hole (170); a baffle (18) is fixed between the two connecting strips (17) at the front side, and the baffle (18) is pressed against the bracket (15); and a plurality of air holes (180) are provided on the baffle (18).

2. The LED display screen back cover structure according to claim 1, characterized in that: A support (19) is installed below the front end surface of the rear cover (1), and the support (19) is fixedly connected to the rear cover (1) via bolts.

3. The LED display screen back cover structure according to claim 1, characterized in that: The cross-sectional shape of the mounting frame (11) is in the shape of a square, and the mounting frame (11) is fixedly connected to the rear cover (1) by means of bolts.

4. The LED display screen back cover structure according to claim 1, characterized in that: The top of the mounting frame (11) is provided with a groove (112), and the cross-sectional shape of the groove (112) is rectangular.

5. The LED display screen back cover structure according to claim 1, characterized in that: The cross-sectional shape of the heat dissipation groove (10) is rectangular, and a plurality of heat dissipation grooves (10) are distributed in a matrix.

6. The LED display screen back cover structure according to claim 1, characterized in that: The connecting strip (17) and the baffle plate (18) are an integrally formed structure, and both the connecting strip (17) and the baffle plate (18) are manufactured products made of plastic material.

7. The LED display screen back cover structure according to claim 1, characterized in that: The cross-sectional shape of the bracket (15) is in the shape of a square, and the bracket (15) and the connecting plate (150) are fixedly connected by bolts.

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