LED display screen convenient to dissipate heat

Abstract

The utility model discloses an LED display screen convenient for heat dissipation, which relates to the field of LED display screens and comprises a shell, an LED module is mounted on the front end face of the shell, a keel frame used for fixing the LED module is arranged in the shell, a rear cover plate is arranged on the rear end face of the shell, two groups of exhaust fans are mounted at two ends in the shell, and the exhaust fans are arranged in the shell. The two sets of exhaust fans are located between the keel frame and the rear cover plate, heat extraction windows are formed in the two outer side wall ends of the shell, and the heat extraction windows are in butt joint with the exhaust ends of the exhaust fans. The dustproof assembly is arranged on the ventilation base of the LED display screen, the dustproof assembly can effectively solve the problem that air inflow is not smooth, the motor is used for driving the driving gear to drive the first roller to rotate forwards, the first roller rolls the part, where dust adheres to, of a dustproof net belt, and meanwhile the second roller is driven to rotate synchronously, so that the dustproof effect is achieved. And the dustproof net belt curled on the second roller shields the air inlet, so that the problem of unsmooth air intake caused by dust is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, in particular to an LED display screen which is convenient for heat dissipation. Background Art

[0002] LED display is a flat panel display, composed of multiple small LED module panels, used to display text, images, videos, video signals and other information. Because LED display converts part of the electrical energy into visible light, the rest of the energy is converted into heat energy. If the excess heat is not dissipated through the cooling system, a lot of heat will accumulate in the LED display, which will affect the life of the LED display.

[0003] There are many existing ways to dissipate heat for LED display screens. The more commonly used method is to use fans for heat dissipation. This method has good effects and low costs. During heat dissipation, the fan discharges the hot air in the LED display screen, and uses negative pressure to force the air intake end of the LED display screen to enter the outside normal temperature air to achieve the heat dissipation effect. However, the air intake end of the existing LED display screen needs to be equipped with a dustproof net, but after a period of time, a lot of dust will adhere to the dustproof net, which will cause the LED display screen to have unsmooth air intake, thereby affecting the ventilation and heat dissipation effect. Utility Model Content

[0004] The purpose of the utility model is to provide an LED display screen that is easy to dissipate heat in order to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an LED display screen that is easy to dissipate heat, comprising a shell, an LED module is installed on the front face of the shell, and a keel frame for fixing the LED module is provided inside the shell, a rear cover is provided on the rear face of the shell, two groups of exhaust fans are installed at both ends of the shell, the two groups of exhaust fans are located between the keel frame and the rear cover, heat exhaust windows are provided at both ends of the outer side walls of the shell, and the heat exhaust windows are connected to the exhaust ends of the exhaust fans; a ventilation seat is installed at the bottom of the shell, the ventilation seat is located between the two groups of exhaust fans, a first mounting groove is provided at one end of the ventilation seat, and a second mounting groove is provided at the other end of the ventilation seat, and the ventilation seat An air inlet is provided in the middle part, and two slits connected to the first mounting slot and the second mounting slot are respectively provided at both ends of the air inlet, and a dustproof component is provided between the first mounting slot and the second mounting slot; wherein the dustproof component includes a first roller rotatably connected to the inner wall of the first mounting slot, and a second roller rotatably connected to the inner wall of the second mounting slot, the first roller and the second roller are provided with dustproof mesh belts, and the two ends of the dustproof mesh belts are respectively wound around the first roller and the second roller, a driven gear is connected to one end of the first roller, a driving gear is provided on one side of the driven gear, the driven gear is meshed with the driving gear, and a motor for driving the driving gear to rotate is installed on one side of the first roller.

[0006] As a further solution of the utility model: the dustproof component also includes two guide rollers respectively arranged in the first mounting groove and the second mounting groove, the two guide rollers are respectively rotatably connected to the first mounting groove and the second mounting groove through bearings, and the guide rollers are located on one side of the slit.

[0007] As a further solution of the utility model: the two side walls in the length direction of the air inlet are provided with limiting grooves, the two ends of the dustproof mesh belt are respectively slidably connected in the two limiting grooves, and the thickness of the dustproof mesh belt is matched with the width of the limiting grooves.

[0008] As a further solution of the utility model: the limiting groove and the lower end of the guide roller are on the same horizontal line.

[0009] As a further solution of the present invention: the first roller and the driven gear are integrally formed.

[0010] As a further solution of the utility model: the ventilation seat and the shell are fixedly connected by bolts.

[0011] As a further solution of the utility model: the rear cover plate is an aluminum profile heat dissipation plate, and the outer side end of the rear cover plate is provided with a plurality of heat dissipation fins distributed at equal distances.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model arranges a dustproof component on the ventilation seat of the LED display screen, and the dustproof component can effectively solve the problem of poor air intake. The motor drives the active gear to drive the first roller to rotate forward. The first roller rolls up the part of the dustproof mesh belt that adheres to dust, and drives the second roller to rotate synchronously at the same time. The dustproof mesh belt curled on the second roller will be laid to the air inlet to block it, thereby solving the problem of poor air intake caused by dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the ventilation seat structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the ventilation seat and dustproof component of the utility model.

[0018] In the figure: 1. Shell; 2. LED module; 3. Back cover; 4. Heat exhaust window; 5. Keel frame; 6. Exhaust fan; 7. Ventilation seat; 71. First mounting slot; 72. Second mounting slot; 73. Air inlet; 74. Slit; 75. Limiting slot; 8. Dustproof component; 801. First roller; 802. Second roller; 803. Motor; 804. Driven gear; 805. Driving gear; 806. Dustproof mesh belt; 807. Guide roller. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 4In the embodiment of the utility model, an LED display screen for heat dissipation includes a housing 1, an LED module 2 is installed on the front face of the housing 1, and a keel frame 5 for fixing the LED module 2 is provided inside the housing 1, a rear cover plate 3 is provided on the rear face of the housing 1, two sets of exhaust fans 6 are installed at both ends of the interior of the housing 1, and the two sets of exhaust fans 6 are located between the keel frame 5 and the rear cover plate 3, and heat exhaust windows 4 are opened at both outer side wall ends of the housing 1, and the heat exhaust windows 4 are connected to the exhaust ends of the exhaust fans 6;

[0021] A ventilation seat 7 is installed at the bottom of the housing 1. The ventilation seat 7 is located between the two sets of exhaust fans 6. A first mounting groove 71 is opened at one end of the ventilation seat 7, and a second mounting groove 72 is opened at the other end of the ventilation seat 7. An air inlet 73 is opened in the middle of the ventilation seat 7. Two slits 74 connected to the first mounting groove 71 and the second mounting groove 72 are opened at both ends of the air inlet 73, and a dustproof component 8 is provided between the first mounting groove 71 and the second mounting groove 72.

[0022] Among them, the dustproof component 8 includes a first roller 801 rotatably connected to the inner wall of the first mounting groove 71, and a second roller 802 rotatably connected to the inner wall of the second mounting groove 72. The first roller 801 and the second roller 802 are provided with a dustproof mesh belt 806, and the two ends of the dustproof mesh belt 806 are respectively wound around the first roller 801 and the second roller 802. One end of the first roller 801 is connected to a driven gear 804, and one side of the driven gear 804 is provided with a driving gear 805. The driven gear 804 is meshed with the driving gear 805. A motor 803 for driving the driving gear 805 to rotate is installed on one side of the first roller 801; the first roller 801 and the driven gear 804 are integrally formed.

[0023] In this embodiment: since the air inlet of the existing LED display screen needs to be equipped with a dustproof net, after a period of time, a lot of dust will adhere to the dustproof net, which will cause the LED display screen to have poor air intake, thereby affecting the ventilation and heat dissipation effect inside the LED display screen. Therefore, this solution sets a dustproof component 8 on the LED display screen ventilation seat 7, and the dustproof component 8 can effectively deal with the problem of poor air intake. The motor 803 drives the active gear 805 to drive the first roller 801 to rotate forward, and the first roller 801 reels the part of the dustproof mesh belt 806 that adheres to dust, and at the same time drives the second roller 802 to rotate synchronously (the second roller 802 and the second mounting groove 72 are in a fastening type rotation connection), and the dustproof mesh belt 6 curled on the second roller 802 will be laid to the air inlet 73 to block it, thereby solving the problem of dust causing poor air intake.

[0024] It should be noted that the dustproof net belt 806 is selected from existing PVC soft dustproof nets. In addition, the heat exhaust window 4 is also equipped with a dustproof net.

[0025] Please refer to Figure 3 and Figure 4 The dustproof component 8 also includes two guide rollers 807 respectively arranged in the first mounting groove 71 and the second mounting groove 72. The two guide rollers 807 are rotatably connected to the first mounting groove 71 and the second mounting groove 72 through bearings. The guide roller 807 is located on one side of the slot 74. The two side walls of the air inlet 73 in the length direction are provided with limiting grooves 75. The two ends of the dustproof mesh belt 806 are respectively slidably connected to the two limiting grooves 75. The thickness of the dustproof mesh belt 806 is matched with the width of the limiting groove 75; the limiting groove 75 and the lower end of the guide roller 807 are on the same horizontal line.

[0026] In this embodiment: the dustproof mesh belt 806 is laid flat at the air inlet 73, and the guide roller 807 and the limiting groove 75 are used to assist in limiting, so that the dustproof mesh belt 806 becomes smoother during movement, to ensure that the new section of the dustproof mesh belt 806 can be neatly laid at the air inlet 73.

[0027] Please refer to Figure 2 The ventilation seat 7 and the housing 1 are fixedly connected by bolts.

[0028] In this embodiment: it is easy to install and disassemble the ventilation seat 7 and the shell 1, providing convenience for the later replacement of the dustproof component 8.

[0029] Please refer to Figure 1 The rear cover plate 3 is an aluminum heat sink, and a plurality of heat sink fins distributed at equal distances are arranged at the outer end of the rear cover plate 3 .

[0030] In this embodiment: the material structure of the rear cover plate 3 is used to further conduct the heat in the LED display screen, thereby enhancing the heat dissipation effect of the LED display screen.

[0031] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An LED display screen that facilitates heat dissipation, comprising a housing (1), an LED module (2) being mounted on the front end surface of the housing (1), and a keel frame (5) for fixing the LED module (2) being provided inside the housing (1), characterized in that: The rear end surface of the shell (1) is provided with a rear cover plate (3), two sets of exhaust fans (6) are installed at both ends of the shell (1), the two sets of exhaust fans (6) are located between the keel frame (5) and the rear cover plate (3), and both ends of the outer side walls of the shell (1) are provided with heat exhaust windows (4), and the heat exhaust windows (4) are connected to the exhaust ends of the exhaust fans (6); A ventilation seat (7) is installed at the bottom of the shell (1), and the ventilation seat (7) is located between the two groups of exhaust fans (6). A first mounting groove (71) is provided at one end of the ventilation seat (7), and a second mounting groove (72) is provided at the other end of the ventilation seat (7). An air inlet (73) is provided in the middle of the ventilation seat (7), and two slits (74) connected to the first mounting groove (71) and the second mounting groove (72) are respectively provided at both ends of the air inlet (73); a dustproof component (8) is provided between the first mounting groove (71) and the second mounting groove (72); The dustproof component (8) comprises a first roller (801) rotatably connected to the inner wall of the first mounting groove (71), and a second roller (802) rotatably connected to the inner wall of the second mounting groove (72); the first roller (801) and the second roller (802) are provided with a dustproof mesh belt (806); the two ends of the dustproof mesh belt (806) are respectively wound around the first roller (801) and the second roller (802); one end of the first roller (801) is connected to a driven gear (804); a driving gear (805) is provided on one side of the driven gear (804); the driven gear (804) is meshed with the driving gear (805); and a motor (803) for driving the driving gear (805) to rotate is installed on one side of the first roller (801).

2. The LED display screen for facilitating heat dissipation according to claim 1, characterized in that: The dustproof component (8) also includes two guide rollers (807) respectively arranged in the first mounting groove (71) and the second mounting groove (72); the two guide rollers (807) are respectively rotatably connected to the first mounting groove (71) and the second mounting groove (72) via bearings; and the guide rollers (807) are located on one side of the slit groove (74).

3. The LED display screen for facilitating heat dissipation according to claim 2, characterized in that: The two side walls of the air inlet (73) in the length direction are provided with limiting grooves (75), and the two ends of the dustproof mesh belt (806) are respectively slidably connected in the two limiting grooves (75), and the thickness of the dustproof mesh belt (806) is matched with the width of the limiting grooves (75).

4. The LED display screen for facilitating heat dissipation according to claim 3, characterized in that: The limiting groove (75) and the lower end of the guide roller (807) are located on the same horizontal line.

5. The LED display screen for facilitating heat dissipation according to claim 4, characterized in that: The first roller (801) and the driven gear (804) are integrally formed.

6. The LED display screen for facilitating heat dissipation according to claim 1, characterized in that: The ventilation seat (7) and the housing (1) are fixedly connected via bolts.

7. The LED display screen for facilitating heat dissipation according to claim 1, characterized in that: The rear cover plate (3) is an aluminum profile heat dissipation plate, and the outer end of the rear cover plate (3) is provided with a plurality of heat dissipation fins distributed at equal distances.

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