Cooling device of LED display screen

Abstract

The utility model discloses an LED display screen cooling device which comprises a shell, a display screen is arranged on the front face of the shell, a heat dissipation water tank is arranged on the back face of the display screen, connecting holes are formed in the upper left corner and the lower right corner of the heat dissipation water tank, the bottom of the shell is connected with a connecting plate, and one end of the connecting plate is connected with a water storage tank. A water pump is arranged in an inner cavity of the connecting frame, the top of the water pump is connected with a drainage pipe, the bottom of the water pump is connected with a water pumping pipe, and the bottom of the water storage tank is connected with a water conveying pipe. And through the use of a second exhaust fan, after the cooling liquid after heat absorption is discharged into the inner cavity of the water storage tank through the drainage pipe, the second exhaust fan is started at the moment to accelerate the flow speed of airflow above the water storage tank, so that heat exchange is quickly performed on the cooling liquid to ensure that the cooling liquid is in a low-temperature state when entering the heat dissipation water tank, and the cooling efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, and specifically relates to a cooling device for an LED display screen. Background Technique

[0002] An LED screen is a new type of imaging electronic device made by arranging light-emitting diodes in sequence. Due to its characteristics such as high brightness, wide viewing angle, and long service life, it is widely used in products such as outdoor advertising screens.

[0003] After retrieval, in the prior art, the utility model with the publication number CN219087455U discloses a heat dissipation device for an LED display screen, including an LED display screen main body. A protection mechanism is fixedly connected to the outer wall of the LED display screen main body, a suspension mechanism is fixedly connected to the outer wall of the LED display screen main body, a first heat dissipation hole is opened on the upper surface of the LED display screen main body, a dust-proof net is fixedly connected to the inner wall of the LED display screen main body, a heat dissipation mechanism is fixedly connected to the inner wall of the LED display screen main body, a water inlet is fixedly connected to the upper end of the heat dissipation mechanism, a dust-proof cover is fixedly connected to the upper end of the water inlet, and a heat absorber is fixedly connected to the inner wall of the LED display screen main body. By setting this, the LED display screen can be quickly dissipated of heat. The heat absorber will adsorb the heat dissipated by the LED display screen main body onto the heat dissipation mechanism and the heat absorber, and then the liquid delivery pump drives the coolant in the water tank to circulate and dissipate heat in the circulation pipe. At the same time, the fan will discharge the excess heat.

[0004] And the prior art, a display module of an indoor high-definition small-pitch LED display screen with the publication number CN212782562U.

[0005] The above-mentioned various technical solutions make the cooling effect of the LED display screen better in different ways. However, the above-mentioned various methods still have the following deficiencies. The above-mentioned various methods all adopt the water-cooling method to dissipate heat from the display screen, but they cannot cool the coolant well, thereby reducing the cooling effect of the coolant on the display screen. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a cooling device for an LED display screen to solve the problems raised in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical solutions: It includes a housing, a display screen is arranged on the front of the housing, a heat dissipation water tank is arranged on the back of the display screen, connection holes are respectively opened at the upper left corner and the lower right corner of the heat dissipation water tank, a connecting plate is connected to the bottom of the housing, a water storage tank is connected to one end of the connecting plate, a connecting frame is connected to one end of the water storage tank, a water pump is arranged in the inner cavity of the connecting frame, a drain pipe is connected to the top of the water pump, a water suction pipe is connected to the bottom of the water pump, and a water delivery pipe is connected to the bottom of the water storage tank.

[0008] Preferably, one end of the drain pipe is connected to the top of the water storage tank, one end of the water delivery pipe is connected to the upper left corner of the heat dissipation water tank through the connection hole, one end of the water suction pipe is connected to the lower right corner of the heat dissipation water tank through the connection hole, and the back of the display screen is attached to the front of the heat dissipation water tank.

[0009] Preferably, an installation plate is arranged on the top of the water storage tank, a plurality of second exhaust fans are arranged in the inner cavity of the installation plate, a partition plate is arranged in the inner cavity of the water storage tank, and a drainage groove is opened at one end of the partition plate.

[0010] Preferably, a plurality of baffle plates are arranged on the top of the partition plate, and the plurality of baffle plates are staggered on the top of the partition plate.

[0011] Preferably, an installation frame is arranged on the back of the housing, a first exhaust fan is arranged in the inner cavity of the installation frame, and installation holes are respectively opened on the backs of the housing and the installation frame.

[0012] Preferably, a plurality of heat dissipation fins are connected to one side of the installation plate, and the plurality of heat dissipation fins are distributed in a rectangle around the heat dissipation water tank.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. For the cooling device of this LED display screen, through the use of the second exhaust fan, after the heat-absorbed coolant is discharged into the inner cavity of the water storage tank through the drain pipe, the second exhaust fan is started at this time to accelerate the flow rate of the air flow above the water storage tank, so as to quickly exchange heat with the coolant, ensuring that the coolant is in a low-temperature state when entering the heat dissipation water tank, thereby improving the cooling efficiency of the device.

[0015] 2. For the cooling device of this LED display screen, through the use of the heat dissipation fins, place the installation frame behind the housing. When the two installation holes are horizontal, bolts and other fasteners can be passed through the installation holes to connect the installation frame and the housing. At this time, the heat dissipation fins are distributed around the heat dissipation water tank, so as to absorb the heat generated by the display screen and the heat dissipation water tank, further improving the cooling effect of the device. Description of the Drawings

[0016] Figure 1 This is the front main view structural schematic diagram of the utility model.

[0017] Figure 2 This is the back main view structural schematic diagram of the utility model.

[0018] Figure 3 This is the rear view structural schematic diagram of the utility model.

[0019] Figure 4 This is the disassembled structural schematic diagram of the utility model.

[0020] Figure 5 This is the complete schematic diagram of the water storage tank structure of the utility model.

[0021] Figure 6 This is the cross-sectional schematic diagram of the water storage pipe structure of the utility model.

[0022] Figure 7 This is the arrangement schematic diagram of the baffle structure of the utility model.

[0023] In the figure: 1, housing; 2, display screen; 3, mounting bracket; 4, mounting hole; 5, first row of fans; 6, connecting plate; 7, water storage tank; 8, connecting frame; 9, water pump; 10, heat dissipation water tank; 11, heat sink; 12, connecting hole; 13, water delivery pipe; 14, water suction pipe; 15, drain pipe; 16, mounting plate; 17, second row of fans; 18, partition board; 19, baffle; 20, drainage groove. Specific embodiments

[0024] 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.

[0025] Embodiment: Please refer to Figure 1-7 , the present utility model provides a technical solution: A cooling device for an LED display screen, including a housing 1, a display screen 2 is arranged on the front of the housing 1, a heat dissipation water tank 10 is arranged on the back of the display screen 2, connecting holes 12 are respectively opened at the upper left corner and the lower right corner of the heat dissipation water tank 10, a connecting plate 6 is connected to the bottom of the housing 1, one end of the connecting plate 6 is connected to a water storage tank 7, one end of the water storage tank 7 is connected to a connecting frame 8, a water pump 9 is arranged in the inner cavity of the connecting frame 8, a drain pipe 15 is connected to the top of the water pump 9, a water suction pipe 14 is connected to the bottom of the water pump 9, and a water delivery pipe 13 is connected to the bottom of the water storage tank 7.

[0026] One end of the drain pipe 15 is connected to the top of the water storage tank 7. One end of the water delivery pipe 13 is connected to the upper left corner of the heat dissipation water tank 10 through the connection hole 12. One end of the water extraction pipe 14 is connected to the lower right corner of the heat dissipation water tank 10 through the connection hole 12. The back of the display screen 2 is attached to the front of the heat dissipation water tank 10.

[0027] Wherein, a mounting plate 16 is arranged on the top of the water storage tank 7. A plurality of second exhaust fans 17 are arranged in the inner cavity of the mounting plate 16. A partition plate 18 is arranged in the inner cavity of the water storage tank 7. A drainage groove 20 is formed at one end of the partition plate 18.

[0028] In this embodiment, the coolant in the water storage tank 7 is input into the inner cavity of the heat dissipation water tank 10 through the water delivery pipe 13. After starting the water pump 9, at this time, the water pump 9 extracts the coolant from the heat dissipation water tank 10 through the water extraction pipe 15 and discharges the coolant into the water storage tank 7 through the drain pipe 15.

[0029] The heat dissipation water tank 10 is made of copper alloy and has a relatively high heat absorption efficiency. The heat generated when the display screen 2 is in use is directly absorbed by the heat dissipation water tank 10. During the process that the coolant enters the heat dissipation water tank 10 from the water delivery pipe 13 and is discharged through the water extraction pipe 14, the heat of the heat dissipation water tank 10 will be taken away, ensuring that the heat dissipation water tank 10 can be in a cooling state, so as to continuously absorb heat from the display screen 2, preventing the display screen 2 from accelerating aging due to overheating and improving the practicability of the device.

[0030] After the heat-absorbed coolant is discharged into the inner cavity of the water storage tank 7 through the drain pipe 15, at this time, start the second exhaust fan 17 to accelerate the flow rate of the air flow above the water storage tank 7, so as to quickly exchange heat with the coolant, ensuring that the coolant is in a low-temperature state when entering the heat dissipation water tank 10, thereby improving the cooling efficiency of the device.

[0031] Refer to Figure 6 , the partition plate 18 is located above the middle position of the inner cavity of the water storage tank 7. The partition plate 18 divides the inner part of the water storage tank 7 into upper and lower layers. The upper layer stores the coolant discharged by the drain pipe 15, and the lower layer stores the coolant discharged by the water delivery pipe 13. The coolant discharged by the drain pipe 15 gradually cools down under the influence of the second exhaust fan 17 during the process of flowing from left to right above the partition plate 18. When the coolant flows to the rightmost end of the partition plate 18, it will enter the lower layer through the drainage groove 20 for use, thus avoiding the heat-absorbed coolant from releasing heat and heating other coolants after entering the water storage tank 7, further improving the practicability of the device.

[0032] Wherein, a plurality of baffles 19 are arranged on the top of the partition plate 18, and the plurality of baffles 19 are staggered on the top of the partition plate 18.

[0033] In this embodiment, refer to Figure 7, there is a certain distance between multiple baffles 19, and there is a gap between one end of the baffle 19 and the inner wall of the water storage tank 7, so that the coolant above the partition 18 can only flow through this gap, slowing down the flow rate of the heat-absorbed coolant above the partition 18 and extending the duration of its flow above the partition 18, so that the coolant can be cooled more completely.

[0034] Among them, an installation frame 3 is arranged on the back of the housing 1, a first row of fans 5 is arranged in the inner cavity of the installation frame 3, and installation holes 4 are opened on the backs of the housing 1 and the installation frame 3.

[0035] Among them, one side of the mounting plate 16 is connected with a plurality of heat sinks 11, and the plurality of heat sinks 11 are distributed in a rectangle around the heat dissipation water tank 10.

[0036] In this embodiment, the installation frame 3 is placed behind the housing 1. When the two installation holes 4 are horizontal, bolts and other fasteners can penetrate through the installation holes 4 to connect the installation frame 3 and the housing 1. At this time, the heat sinks 11 are distributed around the heat dissipation water tank 10, absorbing the heat generated by the display screen 2 and the heat dissipation water tank 10 to further improve the cooling effect of the device. After starting the first row of fans 5, the heat absorbed by the heat sinks 11 can be discharged outside the device.

[0037] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling device for an LED display screen, comprising a housing (1), characterized in that: The front of the shell (1) is provided with a display screen (2), the back of the display screen (2) is provided with a heat dissipation water tank (10), the upper left corner and the lower right corner of the heat dissipation water tank (10) are provided with connection holes (12), the bottom of the shell (1) is connected with a connection plate (6), one end of the connection plate (6) is connected with a water storage tank (7), one end of the water storage tank (7) is connected with a connection frame (8), the inner cavity of the connection frame (8) is provided with a water pump (9), the top of the water pump (9) is connected with a drainage pipe (15), the bottom of the water pump (9) is connected with a water pumping pipe (14), and the bottom of the water storage tank (7) is connected with a water delivery pipe (13).

2. The cooling device for an LED display screen according to claim 1, characterized in that: One end of the drainage pipe (15) is connected to the top of the water storage tank (7), one end of the water delivery pipe (13) is connected to the upper left corner of the heat dissipation water tank (10) through the connection hole (12), one end of the water extraction pipe (14) is connected to the lower right corner of the heat dissipation water tank (10) through the connection hole (12), and the back side of the display screen (2) is in contact with the front side of the heat dissipation water tank (10).

3. The cooling device for an LED display screen according to claim 1, characterized in that: A mounting plate (16) is arranged on the top of the water storage tank (7), a plurality of second exhaust fans (17) are arranged in the inner cavity of the mounting plate (16), a partition plate (18) is arranged in the inner cavity of the water storage tank (7), and a drainage groove (20) is arranged at one end of the partition plate (18).

4. The cooling device for an LED display screen according to claim 3, characterized in that: A plurality of baffles (19) are arranged on the top of the partition (18), and the plurality of baffles (19) are distributed in a staggered manner on the top of the partition (18).

5. The cooling device for an LED display screen according to claim 1, characterized in that: A mounting frame (3) is arranged on the back of the shell (1), a first exhaust fan (5) is arranged in the inner cavity of the mounting frame (3), and mounting holes (4) are provided on the backs of the shell (1) and the mounting frame (3).

6. The cooling device for an LED display screen according to claim 3, characterized in that: One side of the mounting plate (16) is connected to a plurality of heat sinks (11), and the plurality of heat sinks (11) are distributed in a rectangular shape around the periphery of the heat sink (10).

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