CN219108023U

CN219108023U - Outdoor LED display screen heat abstractor

Info

Publication number: CN219108023U
Application number: CN202222473840.2U
Authority: CN
Inventors: 李宇航; 陈杰; 李孟博; 梁超; 刘思杨
Original assignee: Shaanxi Construction Engineering Intelligent Technology Co ltd
Current assignee: Shaanxi Construction Engineering Intelligent Technology Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-05-30
Anticipated expiration: 2032-09-19

Abstract

The utility model discloses a heat dissipation device of an outdoor LED display screen, and belongs to the technical field of LED display screens; the device comprises an air cooling assembly and a water cooling assembly; the air cooling assembly comprises an exhaust axial flow fan and an air inlet axial flow fan, one side of the screen frame is provided with an exhaust hole, and the other side of the screen frame is provided with an air inlet hole; the exhaust axial flow fan is arranged in the exhaust hole, and the air inlet axial flow fan is arranged in the air inlet hole; the water cooling assembly comprises a water pump and a liquid storage tank which are arranged on the screen frame, and a semiconductor refrigerator for refrigerating; the liquid outlet of the liquid storage tank is connected with the liquid inlet of the water pump through a liquid outlet pipe, a snake-shaped radiating pipe is arranged between the liquid outlet of the water pump and the liquid return port of the liquid storage tank, and the snake-shaped radiating pipe is clung to the cold end of the semiconductor refrigerator; the LED screen is provided with a radiating plate, and the serpentine radiating pipe is arranged on the radiating plate; according to the LED display screen, the water cooling component and the air cooling component are added to assist in heat dissipation of the LED display screen, and the heat dissipation effect of the LED display screen is enhanced.

Description

Outdoor LED display screen heat abstractor

Technical Field

The utility model belongs to the technical field of LED display screens, and relates to an outdoor LED display screen heat dissipation device.

Background

The LED display screen is a novel information display medium. In the short decades, the display device is rapidly becoming a mainstream product of flat panel display, and is widely applied in the field of information display. With the development of computer technology and semiconductor technology, the computer technology and the semiconductor technology are connected, so that the LED large-screen display system is a display device integrating computer control technology, video technology, photoelectronic technology, microelectronic technology, communication technology and digital image technology. The LED display screen can display numbers, characters and graphic patterns, can be used in indoor environments and widely used in outdoor environments, and has the advantages incomparable with projectors, television walls and liquid crystal display screens. LEDs are widely appreciated and rapidly developed, and are not separated from their own advantages. LEDs belong to semiconductor electronics, are fragile, and have relatively high environmental requirements, particularly high temperature requirements, and the higher the ambient temperature, the faster the burn-in speed.

Particularly, an outdoor LED display screen is generally made into a completely sealed box body so as to achieve a good waterproof effect, but the heat dissipation of the display screen is greatly hindered. For full-color LED display systems, the LED screen body has the greatest power consumption, the LED screen body consists of thousands of LEDs and driving chips, the heat released during normal operation of the LED screen body is very large, if the heat dissipation treatment is not carried out, the display effect is affected, the service life of the display screen is shortened, and the failure rate is increased.

Disclosure of Invention

The utility model solves the technical problem of providing a heat dissipation device for an outdoor LED display screen. The water cooling component and the air cooling component are added to radiate the LED screen, so that the radiating effect of the LED display screen is enhanced.

The utility model is realized by the following technical scheme:

the outdoor LED display screen heat dissipation device comprises a screen frame for fixing an LED screen, and an air cooling assembly and a water cooling assembly which are arranged in the screen frame;

the air cooling assembly comprises an exhaust axial flow fan and an air inlet axial flow fan, one side of the screen frame is provided with an exhaust hole, and the other side of the screen frame is provided with an air inlet hole; the exhaust axial flow fan is arranged in the exhaust hole, and the air inlet axial flow fan is arranged in the air inlet hole;

the water cooling assembly comprises a water pump and a liquid storage tank which are arranged on the screen frame, and a semiconductor refrigerator for providing a cold source; the liquid outlet of the liquid storage tank is connected with the liquid inlet of the water pump through a liquid outlet pipe, a snake-shaped radiating pipe is arranged between the liquid outlet of the water pump and the liquid return port of the liquid storage tank, and the snake-shaped radiating pipe is clung to the cold end of the semiconductor refrigerator;

the LED screen is provided with a radiating plate, and the serpentine radiating pipe is arranged on the radiating plate; the exhaust hole and the air inlet hole are respectively positioned at two sides of the heat dissipation plate.

Further, the air cooling device also comprises a control assembly for controlling the air cooling assembly and the water cooling assembly, wherein the control assembly comprises temperature sensors arranged at four corners of the radiating plate and temperature controllers arranged at two sides of the radiating plate;

the temperature controller close to the air inlet is electrically connected with the air inlet axial flow fan, the semiconductor refrigerator and two temperature sensors at one side of the heat dissipation plate; the temperature controller close to the exhaust hole is electrically connected with the exhaust axial flow fan, the water pump and two temperature sensors on the other side of the heat dissipation plate;

if the temperature sensor detects that the temperature in the LED display screen is higher than 40 ℃, the temperature signal is fed back to the temperature controller, and the temperature controller controls the exhaust axial flow fan, the air inlet axial flow fan, the semiconductor refrigerator and the water pump to work.

Further, the temperature sensor is a thermistor; the temperature controller is a resistance type temperature controller.

Further, the inner side of the radiating plate is attached to the screen by adopting a heat conduction gasket, and the outer side of the radiating plate is attached to the serpentine radiating pipe by adopting heat conduction silicone grease;

the heat dissipation plate is made of aluminum-based copper-clad plate, and the snakelike heat dissipation tube is made of copper tube.

Compared with the prior art, the utility model has the following beneficial technical effects:

1. in the utility model, a water cooling component and an air cooling component are added to radiate the LED screen; the air inlet axial flow fan and the air outlet axial flow fan rotate, so that air convection in the LED display screen is increased, and air cooling and heat dissipation are achieved; when the semiconductor refrigerator and the water pump work, the refrigerating fluid in the liquid storage tank sequentially passes through the liquid outlet pipe, the water pump and the serpentine radiating pipe and flows through the cold end of the semiconductor refrigerator under the action of the water pump, part of heat generated on the LED screen is transferred into the refrigerating fluid through the radiating plate and the serpentine radiating pipe in the flowing process of the refrigerating fluid in the serpentine radiating pipe, the semiconductor refrigerator can be utilized to exchange heat and cool the refrigerating fluid containing heat, the cooled heat exchange fluid is circulated into the liquid storage tank, and the heat exchange fluid is utilized to circularly flow, so that the liquid crystal spliced screen body can be cooled by water; therefore, through the cooperation of air cooling and water cooling to the LED screen, the LED display has better heat dissipation and cooling effect, higher heat dissipation efficiency and prolonged service life.

2. The thermistor can detect the temperature in the LED display screen and feed back a temperature signal to the temperature controller, and the temperature controller drives the air inlet axial flow fan, the air outlet axial flow fan, the semiconductor refrigerator and the water pump to work after reaching a set value so as to perform air cooling heat dissipation and water cooling heat dissipation on the LED screen of the LED display screen.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

wherein, 1 is the screen frame, 2 is the LED screen, 3 is the heating panel, 4 is the exhaust axial fan, 5 is the exhaust hole, 6 is the water pump, 7 is the drain pipe, 8 is the liquid reserve tank, 9 is the liquid return pipe, 10 is the semiconductor refrigerator, 11 is the inlet port, 12 is the inlet air axial fan, 13 is temperature controller, 14 is snakelike cooling tube, 15 is temperature sensor.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings, which illustrate but do not limit the utility model.

As shown in fig. 1, the utility model discloses an outdoor LED display screen heat dissipating device, which comprises a screen frame 1 for fixing an LED screen 2, and an air cooling component and a water cooling component which are arranged in the screen frame;

the air cooling assembly comprises an exhaust axial flow fan 4 and an air inlet axial flow fan 12, one side of the screen frame 1 is provided with an exhaust hole 5, and the other side is provided with an air inlet hole 11; the exhaust axial flow fan 4 is arranged in the exhaust hole 5, and the air inlet axial flow fan 12 is arranged in the air inlet hole 11;

the water cooling assembly comprises a water pump 6 and a liquid storage tank 8 which are arranged on the screen frame 1, and a semiconductor refrigerator 10 for providing a cold source; the liquid outlet of the liquid storage tank 8 is connected with the liquid inlet of the water pump 6 through a liquid outlet pipe 7, a snake-shaped radiating pipe 14 is arranged between the liquid outlet of the water pump 6 and the liquid return port of the liquid storage tank 8, and the snake-shaped radiating pipe 14 is tightly attached to the cold end of the semiconductor refrigerator 10; the LED screen 2 is provided with a radiating plate 3, and a serpentine radiating pipe 14 is arranged on the radiating plate 3; the exhaust hole 5 and the intake hole 11 are respectively located at both sides of the heat dissipation plate 3.

As shown in fig. 1, the air cooling device further comprises a control assembly for controlling the air cooling assembly and the water cooling assembly, wherein the control assembly comprises temperature sensors 15 arranged at four corners of the heat dissipation plate 3 and temperature controllers 13 arranged at two sides of the heat dissipation plate 3; the temperature controller 13 near the air inlet hole 11 is electrically connected with the air inlet axial flow fan 12, the semiconductor refrigerator 10 and two temperature sensors 15 on one side of the heat radiation plate 3; the temperature controller 13 near the exhaust hole 5 is electrically connected with the exhaust axial flow fan 4, the water pump 6 and two temperature sensors 15 on the other side of the heat radiation plate 3; if the temperature sensor 15 detects that the temperature in the LED display screen is higher than 40 ℃, the temperature signal is fed back to the temperature controller 13, and the temperature controller 13 controls the exhaust axial flow fan 4, the air inlet axial flow fan 12, the semiconductor refrigerator 10 and the water pump 6 to work.

As shown in fig. 1, the temperature sensor 15 is a thermistor; the temperature controller 13 is a resistive temperature controller.

As shown in fig. 1, the inner side of the heat dissipation plate 3 is attached to the screen by a heat conduction gasket, and the outer side of the heat dissipation plate 3 is attached to the serpentine heat dissipation tube 14 by heat conduction silicone grease; the heat dissipation plate 3 is made of aluminum-based copper-clad plate, and the snakelike heat dissipation tube 14 is made of copper tube.

The embodiments given above are preferred examples for realizing the present utility model, and the present utility model is not limited to the above-described embodiments. Any immaterial additions and substitutions made by those skilled in the art according to the technical features of the technical scheme of the utility model are all within the protection scope of the utility model.

Claims

1. The outdoor LED display screen heat dissipation device is characterized by comprising a screen frame (1) for fixing an LED screen (2), and an air cooling assembly and a water cooling assembly which are arranged in the screen frame;

the air cooling assembly comprises an exhaust axial flow fan (4) and an air inlet axial flow fan (12), one side of the screen frame (1) is provided with an exhaust hole (5), and the other side of the screen frame is provided with an air inlet hole (11); the exhaust axial flow fan (4) is arranged in the exhaust hole (5), and the air inlet axial flow fan (12) is arranged in the air inlet hole (11);

the water cooling assembly comprises a water pump (6) and a liquid storage tank (8) which are arranged on the screen frame (1), and a semiconductor refrigerator (10) for providing a cold source; the liquid outlet of the liquid storage tank (8) is connected with the liquid inlet of the water pump (6) through a liquid outlet pipe (7), a snake-shaped radiating pipe (14) is arranged between the liquid outlet of the water pump (6) and the liquid return port of the liquid storage tank (8), and the snake-shaped radiating pipe (14) is tightly attached to the cold end of the semiconductor refrigerator (10);

a radiating plate (3) is arranged on the LED screen (2), and a serpentine radiating pipe (14) is arranged on the radiating plate (3); the exhaust hole (5) and the air inlet hole (11) are respectively positioned at two sides of the heat dissipation plate (3).

2. The outdoor LED display screen heat sink according to claim 1, further comprising a control assembly for controlling the air cooling assembly and the water cooling assembly, the control assembly comprising temperature sensors (15) installed at four corners of the heat dissipation plate (3), and temperature controllers (13) installed at both sides of the heat dissipation plate (3);

a temperature controller (13) close to the air inlet hole (11) is electrically connected with the air inlet axial flow fan (12), the semiconductor refrigerator (10) and two temperature sensors (15) at one side of the heat radiation plate (3); a temperature controller (13) close to the exhaust hole (5) is electrically connected with the exhaust axial flow fan (4), the water pump (6) and two temperature sensors (15) on the other side of the heat radiation plate (3);

if the temperature sensor (15) detects that the temperature in the LED display screen is higher than 40 ℃, a temperature signal is fed back to the temperature controller (13), and the temperature controller (13) controls the exhaust axial flow fan (4), the air inlet axial flow fan (12), the semiconductor refrigerator (10) and the water pump (6) to work.

3. An outdoor LED display screen heat sink according to claim 2, characterized in that the temperature sensor (15) is a thermistor; the temperature controller (13) is a resistance type temperature controller.

4. The outdoor LED display screen heat dissipation device according to claim 1, wherein the inner side of the heat dissipation plate (3) is attached to the screen by a heat conduction gasket, and the outer side of the heat dissipation plate (3) is attached to the serpentine heat dissipation tube (14) by heat conduction silicone grease;

the heat radiation plate (3) is made of aluminum-based copper-clad plate, and the snakelike heat radiation pipe (14) is made of copper tube.