Large-screen protection type dustproof heat dissipation mechanism

Abstract

The utility model relates to the technical field of display screen heat dissipation, and particularly discloses a large screen protection type dustproof heat dissipation mechanism which comprises a shell, a display screen is arranged in the shell, the top end and the bottom end of the back face of the shell are both fixedly connected with fixing bins, cooling cavities are fixedly connected into the fixing bins, and fan blades are fixedly connected to the output end of a driving motor. Two first air inlets are formed in the bottom of the cooling cavity, a first filter plate is fixedly connected to the interior of the cover plate, and a first guide plate is fixedly connected to the inner side wall of the fixed bin; the fan blades, the first air inlet, the first guide plate, the fixed bin, the heat conducting sheet and the first filter plate are matched for use, so that the display screen can be cooled during working, air in the display screen forms convection, the air flowing speed is increased, the cooling effect on the display screen is further improved, and the service life of the display screen is prolonged. Meanwhile, dust contained in the gas is prevented from entering the shell when the gas enters the shell, and damage to electronic components is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of display screen heat dissipation technology, specifically relating to a large screen protective dustproof heat dissipation mechanism. Background Technology

[0002] A monitor is an output device used to display images and colors. Common monitors are computer and television screens. Electronic visual monitors are commonly used in television sets or computer monitors. Large screens are often installed in shopping malls or plazas to advertise or attract customers. Large screens generate a lot of heat during use, so heat dissipation is necessary to ensure stable operation. Therefore, heat dissipation structures are used. Some existing screens are equipped with heat dissipation structures, but these structures often have certain shortcomings when used inside the screen, so improvements are needed.

[0003] Chinese patent CN219124670U discloses a heat dissipation mechanism for a display screen, including a mounting frame. Electrical components are housed within the mounting frame. Multiple support strips are evenly distributed along the side edges of the mounting frame to mate with the electrical components. A heat-absorbing plate is located on the back of the electrical components, with multiple heat dissipation fins evenly and longitudinally distributed on the heat-absorbing plate. A back plate is also provided on the back of the mounting frame. An air inlet is located below the back plate, and an air outlet is located above it. A mounting bracket is detachably mounted at both the air inlet and outlet. A dustproof mesh is installed inside the mounting bracket. An air inlet shroud is located inside the air inlet. A cooling fan is installed at the air inlet end of the air inlet shroud, and a guide plate is installed at the air outlet end. This invention provides good heat dissipation and enables dustproof operation during heat dissipation.

[0004] However, although the above-mentioned technical solution can dissipate heat inside the device through a fan, and the air blown in by the fan blows towards the electronic components through the heat dissipation channel, the gas passage speed is slow due to the small size of the heat dissipation channel. At the same time, the gas is discharged through only one vent, which causes the heated gas to stay inside the mounting frame for a long time. This further results in the overall cooling effect inside the mounting frame being insufficient, and thus has certain limitations in use. Utility Model Content

[0005] The purpose of this invention is to provide a large-screen protective dustproof and heat dissipation mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A large-screen protective dustproof and heat dissipation mechanism includes: a housing, a display screen disposed inside the housing, a fixed compartment fixedly connected to the top and bottom of the back of the housing, a cooling chamber fixedly connected inside the fixed compartment, a drive motor fixedly connected inside the cooling chamber, a fan blade fixedly connected to the output end of the drive motor, two first air inlets opened at the bottom of the cooling chamber, a cover plate threadedly connected to the top of the inner sidewall of the cooling chamber, a second air inlet opened inside the cover plate, a first filter plate fixedly connected inside the cover plate, a third air inlet opened at the top and bottom of the back of the housing, and the surface of the third air inlet penetrates the interior of the fixed compartment, a first guide plate fixedly connected to the inner sidewall of the fixed compartment, and a second guide plate fixedly connected to the top and bottom of the inner sidewall of the housing, with the first and second guide plates interconnected.

[0008] Preferably, the top and bottom of the outer shell are provided with strip grooves, and a second filter plate is provided inside the strip grooves. The two sides of the top of the second filter plate are fixedly connected with snap-fit ​​blocks, and the snap-fit ​​blocks are provided with snap-fit ​​grooves inside. The two sides of the top of the outer shell are rotatably provided with positioning rods, and the inside of the positioning rods is fixedly connected with crossbars. The end of the crossbars away from the positioning rods is fixedly connected with a snap-fit ​​rod.

[0009] Preferably, a heat sink is fixedly connected to one side of the inner wall of the outer casing, and a plurality of heat-conducting plates are fixedly connected to the surface of the heat sink.

[0010] Preferably, a number of heat dissipation fins are fixedly connected to the back of the heat sink, and a number of heat dissipation holes are opened inside the heat sink.

[0011] Preferably, a power switch is provided at the bottom of one side of the housing, and two wire harness sockets are provided at the bottom of one side of the housing.

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

[0013] (1) The display screen and its internal electronic components can be cooled during operation. At the same time, the gas flow inside the casing is further accelerated by mutual convection during cooling, thereby carrying out the warm gas inside, improving the cooling effect on the display screen, ensuring the stability of the display screen during use, and preventing dust contained in the external gas from entering the casing when the external gas enters the casing, thus playing a certain protective role for the display screen and electronic components.

[0014] (2) The first and second filter plates can be disassembled and cleaned after a certain period of use, which facilitates subsequent use. The disassembly method is simple and easy for staff to operate. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the first guide plate of this utility model;

[0017] Figure 3 This is a perspective view of the heat sink of this utility model;

[0018] Figure 4 This is a cross-sectional view of the first filter plate of this utility model;

[0019] In the diagram: 1. Outer shell; 2. Display screen; 3. Fixing compartment; 4. Cooling chamber; 5. Drive motor; 6. Fan blade; 7. First air inlet; 8. Cover plate; 9. Second air inlet; 10. First filter plate; 11. Third air inlet; 12. First guide plate; 13. Second guide plate; 14. Heat sink; 15. Heat conduction plate; 16. Heat dissipation fins; 17. Strip groove; 18. Second filter plate; 19. Snap-fit ​​block; 20. Snap-fit ​​groove; 21. Positioning rod; 22. Crossbar; 23. Snap-fit ​​rod; 24. Heat dissipation hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] Please see Figures 1 to 4As shown, a large-screen protective dustproof and heat dissipation mechanism includes a housing 1, a display screen 2 inside the housing 1, a fixed chamber 3 fixedly connected to the top and bottom of the back of the housing 1, a cooling chamber 4 fixedly connected inside the fixed chamber 3, a drive motor 5 fixedly connected inside the cooling chamber 4, a fan blade 6 fixedly connected to the output end of the drive motor 5, two first air inlets 7 opened at the bottom of the cooling chamber 4, a cover plate 8 threadedly connected to the top of the inner wall of the cooling chamber 4, a second air inlet 9 opened inside the cover plate 8, a first filter plate 10 fixedly connected inside the cover plate 8, a third air inlet 11 opened at the top and bottom of the back of the housing 1, and the surface of the third air inlet 11 penetrates the interior of the fixed chamber 3, a first guide plate 12 fixedly connected to the inner wall of the fixed chamber 3, a second guide plate 13 fixedly connected to the top and bottom of the inner wall of the housing 1, and the first guide plate 12 and the second guide plate 13 are interconnected. The outer casing 1 provides protection for the display screen 2 during use. The fixing chamber 3 secures the cooling chamber 4, which in turn houses the drive motor 5. The drive motor 5 provides the driving force for the rotation of the fan blades 6. The fan blades 6 allow external air to enter the cooling chamber 4 through the second air inlet 9, then through the first air inlet 7 into the fixing chamber 3, and then through the first guide plate 12 inside the fixing chamber 3 to the third air inlet 11. The first guide plate 12 guides the air directly to the back of the display screen 2 and the heat sink 14. The second guide plate 13 guides the air during convection. The first filter plate 10 is connected to the second air inlet 9.

[0023] Example 2:

[0024] Please see Figure 1 and Figure 4 As shown, the top and bottom of the outer casing 1 are provided with strip-shaped grooves 17. A second filter plate 18 is arranged inside the strip-shaped grooves 17. A snap-fit ​​block 19 is fixedly connected to both sides of the top of the second filter plate 18. A snap-fit ​​groove 20 is formed inside the snap-fit ​​block 19. Positioning rods 21 are rotatably arranged on both sides of the top of the outer casing 1. A crossbar 22 is fixedly connected inside the positioning rod 21. A snap-fit ​​rod 23 is fixedly connected to the end of the crossbar 22 away from the positioning rod 21. The strip-shaped grooves 17 allow the second filter plate 18 to be placed inside. The snap-fit ​​blocks 19 allow the snap-fit ​​grooves 20 to be opened. The positioning rods 21 fix the crossbar 22 inside and allow it to rotate. The snap-fit ​​rods 23 engage with the snap-fit ​​grooves 20, thus fixing the second filter plate 18 inside the strip-shaped grooves 17. The strip-shaped grooves 17 are connected to the interior of the outer casing 1, ensuring that external air can enter and dissipate heat.

[0025] A heat sink 14 is fixedly connected to one side of the inner wall of the outer casing 1, and several heat-conducting plates 15 are fixedly connected to the surface of the heat sink 14.

[0026] Several heat dissipation fins 16 are fixedly connected to the back of the heat sink 14, and several heat dissipation holes 24 are opened inside the heat sink 14. Through the setting of the heat conduction plate 15, the heat of the display screen 2 during operation can be transferred to the heat sink 14. Through the setting of the heat sink 14 and the heat dissipation fins 16, the heat transferred by the heat conduction plate 15 can be dissipated. The heat conduction plate 15, the heat sink 14, and the heat dissipation fins 16 are all made of metal heat conduction material.

[0027] A power switch is provided at the bottom of one side of the housing 1, and two wire harness sockets are provided at the bottom of one side of the housing 1.

[0028] The working principle of this utility model is as follows: When the display screen 2 is working, external gas can automatically enter the interior of the outer casing 1 through the second air inlet 9, the strip groove 17, and the second filter plate 18, causing it to blow onto the display screen 2 and the heat sink 14, thus playing a preliminary role in heat dissipation. The heat-conducting plate 15 transfers the heat generated by the display screen 2 during operation to the heat sink 14, and then the heat is dispersed by the heat dissipation fins 16, thereby reducing the temperature of the display screen 2 during operation. When external gas enters the interior of the outer casing 1 through the strip groove 17, it can prevent dust contained in the gas from entering the interior. When active heat dissipation is required, the operator controls the drive motor 5 to start. The output end of the drive motor 5 drives the fan blade 6 to rotate. Then, the fan blade 6 rotates, causing it to carry external gas into the cooling chamber 4. Finally, the gas flows through the second air inlet 9 and the first air inlet 7 to the third air inlet 11, and finally, the cool air is transferred to the interior of the outer casing 1 through the third air inlet 11. During this process, the gas is guided by the first guide plate 12. After the gas enters the interior of the outer casing 1, it is pre-guided. The gas contacts the heat sink 14 and the display screen 2, cooling them down. The gas then flows downwards, and the two fan blades 6 work simultaneously, causing gas convection and further accelerating the gas flow inside the casing 1. The convection gas also passes through the heat dissipation holes 24, resulting in faster cooling of the display screen 2 and the heat sink 14. The second guide plate 13 guides the gas during convection, and the convection gas is discharged to the outside through the strip groove 17. After prolonged use, the first filter plate 10 and the second filter plate 18 can be disassembled. The operator first unscrews the cover plate 8 from the cooling chamber 4, then cleans the first filter plate 10 directly. When disassembling the second filter plate 18, the operator rotates the positioning rod 21, which in turn rotates the crossbar 22. The crossbar 22, when rotating, causes the locking rod 23 to disengage from the locking groove 20. The operator then lifts the second filter plate 18 upwards to remove it, and then cleans it for future use.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large-screen protective dustproof and heat dissipation mechanism, characterized in that, include: The outer casing (1) has a display screen (2) inside. A fixed chamber (3) is fixedly connected to the top and bottom of the back of the outer casing (1). A cooling chamber (4) is fixedly connected inside the fixed chamber (3). A drive motor (5) is fixedly connected inside the cooling chamber (4). A fan blade (6) is fixedly connected to the output end of the drive motor (5). Two first air inlets (7) are opened at the bottom of the cooling chamber (4). A cover plate (8) is threadedly connected to the top of the inner wall of the cooling chamber (4). The cover plate (8) has a second air inlet (9) inside, and a first filter plate (10) is fixedly connected inside the cover plate (8). The top and bottom of the back of the outer shell (1) are both provided with a third air inlet (11), and the surface of the third air inlet (11) penetrates the interior of the fixed chamber (3). The inner wall of the fixed chamber (3) is fixedly connected with a first guide plate (12), and the top and bottom of the inner wall of the outer shell (1) are both fixedly connected with a second guide plate (13). The first guide plate (12) and the second guide plate (13) are connected to each other.

2. The large-screen protective dustproof and heat dissipation mechanism according to claim 1, characterized in that: The top and bottom of the outer shell (1) are provided with strip grooves (17), and a second filter plate (18) is provided inside the strip grooves (17). The two sides of the top of the second filter plate (18) are fixedly connected with snap-fit ​​blocks (19), and the snap-fit ​​blocks (19) are provided with snap-fit ​​grooves (20). The two sides of the top of the outer shell (1) are rotatably provided with positioning rods (21), and a crossbar (22) is fixedly connected inside the positioning rods (21). The end of the crossbar (22) away from the positioning rods (21) is fixedly connected with a snap-fit ​​rod (23).

3. The large-screen protective dustproof and heat dissipation mechanism according to claim 1, characterized in that: A heat sink (14) is fixedly connected to one side of the inner wall of the outer shell (1), and a plurality of heat-conducting plates (15) are fixedly connected to the surface of the heat sink (14).

4. The large-screen protective dustproof and heat dissipation mechanism according to claim 3, characterized in that: The back of the heat sink (14) is fixedly connected with several heat dissipation fins (16), and the interior of the heat sink (14) is provided with several heat dissipation holes (24).

5. The large-screen protective dustproof and heat dissipation mechanism according to claim 1, characterized in that: A power switch is provided at the bottom of one side of the housing (1), and two wire harness sockets are provided at the bottom of one side of the housing (1).

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