Liquid crystal display screen capable of rapidly dissipating heat

Abstract

The utility model belongs to the technical field of display screens, and particularly discloses a liquid crystal display screen capable of rapidly dissipating heat. A passive heat dissipation structure and an active heat dissipation structure are arranged in the display mounting frame and the display shell; the passive heat dissipation structure absorbs heat in the display through the built-in fins, then exchanges heat with the outside through the fins, reduces the temperature in the display, and can continuously dissipate heat in the display to realize uninterrupted heat dissipation; the active heat dissipation structure can exchange air in the displayer with external air, active air inlet, air exchange and temperature control are achieved, the interior of the displayer is connected with the external air, the temperature can be adjusted through natural ventilation or an air conditioning system, and therefore it is guaranteed that the displayer operates at the optimal temperature.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display screen, in particular to a liquid crystal display screen capable of rapid heat dissipation. BACKGROUND

[0002] The liquid crystal display screen is a flat and thin display device composed of a certain number of color or black and white pixels, which is placed in front of a light source or a reflecting surface. The liquid crystal display screen has low power consumption, and therefore is favored by engineers, and is suitable for electronic devices using batteries.

[0003] The liquid crystal display screen usually contains a backlight source for illuminating the screen to display images. The backlight source generates heat during operation, and the heat is gradually accumulated, resulting in an increase in the internal temperature of the display screen. If the display screen is used for a long time, the high temperature of the display screen will accelerate the flow speed of liquid crystal molecules, affect the arrangement and stability of the liquid crystal material, and cause problems such as lightening of display patterns or characters, inaccurate color display, and decrease in contrast, thereby affecting the image quality. High temperature accelerates the aging of electronic components and backlight components inside the liquid crystal display screen, and shortens the service life of the liquid crystal display screen. SUMMARY

[0004] The purpose of the present application is to provide a liquid crystal display screen capable of rapid heat dissipation to solve the above problems.

[0005] To achieve the above purpose, the present application provides the following technical solution: a liquid crystal display screen capable of rapid heat dissipation, comprising:

[0006] The display mounting frame and the display shell have a spacing therebetween, and the inside of the display mounting frame and the display shell has a passive heat dissipation structure and an active heat dissipation structure.

[0007] The passive heat dissipation structure absorbs the heat inside the display through the built-in fins, and then exchanges heat with the outside through the fins to reduce the internal temperature of the display. The passive heat dissipation structure can continuously dissipate heat inside the display, realizing uninterrupted heat dissipation. The fins are extended from the surface of the display, significantly increasing the surface area in contact with air, thereby improving the heat exchange efficiency.

[0008] The active heat dissipation structure can exchange the air inside the display with the outside air, realize active air intake, realize air exchange and temperature control, the connection between the inside of the display and the outside air can adjust the temperature through natural ventilation or air conditioning system, so as to ensure that the display runs at the best temperature, keeps the equipment in the appropriate working temperature range, prolongs the service life, and the air inlet can be actively opened and closed according to the temperature change in the display, closed for a long time when the temperature in the display is low, especially in cold winter, thereby reducing the dust entering the display, and the air inlet is actively opened when the temperature in the display is too high, and heat exchange with the outside.

[0009] Preferably, the passive heat dissipation structure includes a heat exchange plate, a heat exchange fin A, a heat exchange fin B, a wind pipe B, and a fan B;

[0010] A through slot A is formed in the middle of the display shell, the heat exchange plate is embedded in the inside of the through slot A, one side of the heat exchange plate is in contact with the inside of the display shell, the other side of the heat exchange plate is in contact with the outside of the display shell, thereby realizing the heat exchange function, the number of heat exchange fins A is multiple, multiple heat exchange fins A are welded on the outside of the heat exchange plate, one end of each heat exchange fin A has a width greater than the other end, through the design of the structure, the area of the heat exchange fin A in contact with the air is enlarged, and the heat exchange efficiency is higher, the end of the heat exchange fin A with smaller width is welded and fixed with the heat exchange plate, and each two heat exchange fins A have a spacing,

[0011] The heat exchange fin B is located on one side of the heat exchange plate, the heat exchange fin B is in contact with the air outside the display shell, and the heat exchange effect is realized, the contact area with the air is increased through the heat exchange fin B, and the heat exchange efficiency is improved;

[0012] The wind pipe B is fixedly connected to the outside of the heat exchange plate, and the fan B is installed in the inside of the wind pipe B, the air flow is improved by blowing through the fan B, thereby greatly increasing the amount of air in contact with the heat exchange plate and the heat exchange fin B, and improving the heat exchange efficiency.

[0013] Preferably, the heat exchange plate, the heat exchange fin A, the heat exchange fin B and the wind pipe B are all made of aluminum alloy material, the thermal conductivity of aluminum alloy is 237W / mK, which is lower than that of copper, but in the same volume, the heat capacity of aluminum is higher, which can quickly cool down, thereby effectively taking away the heat, and after oxidation treatment, the thermal conductivity of aluminum alloy is further improved, the density of aluminum alloy is about one third of that of copper, so that in the same heat dissipation capacity, the weight of the aluminum fin is lighter and the volume is smaller.

[0014] Preferably, the end of the air duct B is provided with a plurality of through grooves B, and the air is introduced into the air duct B and then discharged from the plurality of through grooves B to directly contact the heat exchange fins B by the fan B. The heat exchange fins B are in a plurality, and the plurality of heat exchange fins B are annularly distributed on the outside of the air duct B. Therefore, a wind channel is formed between every two heat exchange fins B, thereby improving the flowability of the air.

[0015] Preferably, the active heat dissipation structure comprises an air duct, a temperature sensor, a baffle, an upper connecting piece, a spring B, a servo motor and a driving rod.

[0016] The outside of the display housing is provided with a plurality of heat exchange holes, and the number of the air ducts is a plurality. The air ducts are buckled on the outside of the heat exchange holes. The temperature sensor is installed close to the display housing. The baffle is located away from the display housing. Therefore, the temperature sensor is closed in the air duct by the baffle. The temperature inside the display housing can be monitored in real time by the temperature sensor. When the temperature is high, the baffle is actively opened to circulate air and exchange heat. The middle part of the baffle is integrally fixed with a fixed pipe, and the inside of the fixed pipe is a hollow structure. The inside of the fixed pipe penetrates a rotating shaft. The two ends of the rotating shaft are connected to the inner wall of the air duct. The fixed pipe is rotationally connected to the air duct through the rotating shaft.

[0017] Each air duct has two guide rails on both sides. Each guide rail has a spring A embedded in the inside. The two ends of the guide rod are respectively inserted into the two guide rails and are in sliding connection with the guide rails. The two ends of the spring A are respectively in abutment with the guide rails and the guide rod. The outside of the fixed pipe has two integrally fixed fixing rods. The end of the fixing rod away from the fixed pipe is connected to the guide rod. The guide rod is always kept at the top of the guide rail by the spring A pushing the guide rod upward without being affected by external force.

[0018] The number of the upper connecting pieces is two. The two upper connecting pieces are sleeved on the outside of the guide rod. One side of the upper connecting piece is in abutment with the fixing rod. The bottom of each upper connecting piece has two upper connecting parts. One end of the upper connecting part is hinged to the upper connecting piece. The outside of the servo motor has two lower connecting pieces sleeved. The top of each lower connecting piece has two lower connecting parts. The lower connecting parts are hingedly connected to the lower connecting piece. Each spring B has one spring B between every two upper connecting parts and lower connecting parts. The two ends of the spring B are respectively fixedly connected to the upper connecting part and the lower connecting part. When the lower connecting part moves on the driving rod, the spring B pulls the upper connecting piece, so that the guide rod is pulled downward, so that the guide rod moves downward in the guide rail, so that the baffle rotates, so that the end of the air duct is not closed, so as to realize contact with the external air and heat exchange.

[0019] Preferably, the cross section of the baffle is in the shape of "S", the two ends of the baffle abut against the outer wall of the display housing and the inner wall of the air duct respectively, the end of the air duct is closed by the baffle, the air inlet is closed when the temperature inside the display is low, especially for a long time in cold winter, thereby reducing the dust entering the display, and the air inlet is actively opened when the temperature inside the display is too high to exchange heat with the outside.

[0020] Preferably, two external threads are arranged near the two ends of the driving rod, the directions of the two external threads are opposite, and the lower connecting piece is sleeved outside the driving rod and is threadedly connected with the driving rod, so that the lower connecting piece moves in two opposite directions when moving on the driving rod.

[0021] Preferably, the display mounting frame has a plurality of fixed metal mesh frames on the upper side, the display inside is communicated through the metal mesh frame, air circulation can be realized under the supporting condition, heat accumulation is reduced, the middle part of the display mounting frame has an integrally fixed air duct A, the air duct A has a fan A inside, the outer wall of the heat exchange plate is blown by the fan A, the heat exchange plate contacts the airflow, and the heat exchange efficiency is improved, the airflow blown by the fan A is changed in direction by the heat exchange plate and diffused to the periphery of the heat exchange plate, the airflow blows to the plurality of heat exchange fins A, the heat exchange efficiency of the heat exchange fins A is improved, and part of the heat exchange fins A contacts the heat exchange fins B, the heat on the heat exchange fins A is directly transported to the heat exchange holes by the airflow to be discharged out of the display housing, and the heat exchange efficiency is greatly improved.

[0022] Preferably, the display mounting frame and the display housing are in the shape of a horn, the distance between the horn-shaped display mounting frame and the display housing is larger, more structures can be loaded, and more structures can be loaded inside the horn-shaped display mounting frame, and the display screen and circuit elements can be stored.

[0023] Preferably, the display mounting frame has a plurality of integrally fixed clamping blocks on the outer side, the display housing has a plurality of integrally fixed clamping grooves on the inner side, the display mounting frame is embedded in the inside of the display housing, the clamping blocks are clamped in the clamping grooves, the structure is more compact through the embedded design, and the clamping form makes the installation and dismounting between the display mounting frame and the display housing more convenient.

[0024] The trumpet-shaped display mounting rack internally stores a display screen and circuit elements, and the display mounting rack is in communication with the inside of the display housing through the metal net rack, air circulation can be realized under the supporting condition, heat accumulation is reduced, and the heat exchange fins A are welded on the outside of the heat exchange plate, the width of one end of each heat exchange fin A is greater than the width of the other end, thereby expanding the area of the heat exchange fin A in contact with air, the heat inside the display is absorbed by the heat exchange fin B, and then transmitted to the heat exchange plate, and heat exchange is performed through the heat exchange plate and the heat exchange fin B on the outside;

[0025] Preferably, when the temperature sensor monitors that the temperature inside the display housing is high, the fan A, the fan B and the servo motor are powered on to actively open the fan A, the fan B and the servo motor;

[0026] Preferably, when the fan A is started, the fan A blows air on the outer wall of the heat exchange plate, so that the heat exchange plate contacts the airflow is increased, thereby improving the heat exchange efficiency, and the air blown by the fan A changes the direction after being blocked by the heat exchange plate, and diffuses to the periphery of the heat exchange plate, the airflow blows to the plurality of heat exchange fins A, the heat exchange efficiency of the heat exchange fins A is improved, and part of the heat exchange fins A contact the heat exchange fins B, the heat on the heat exchange fins A is directly transported to the heat exchange holes in the display housing through the airflow, and the heat exchange efficiency is greatly improved;

[0027] Preferably, when the servo motor is started, the servo motor drives the driving rod to rotate, the directions of the two external threads on the driving rod are opposite, so that the lower connecting piece moves in two opposite directions on the driving rod, when the lower connecting piece moves on the driving rod, the spring B pulls the upper connecting piece, so that the guide rod is pulled downward, the guide rod moves downward in the guide rail, the baffle rotates, the end of the air pipe is not closed, air contact with the outside air is realized, and heat exchange is realized;

[0028] Preferably, when the fan B is started, the fan B circulates air, so that the air enters from one end of the air pipe B, and then the air is discharged from the plurality of through grooves B to directly contact the heat exchange fins B, and the number of the heat exchange fins B is plurality, the plurality of heat exchange fins B are annularly distributed on the outside of the air pipe B, so that a wind channel can be formed between every two heat exchange fins B, thereby improving the flowability of air.

[0029] Compared with the prior art, the present application has the following advantages:

[0030] 1、The passive heat dissipation structure absorbs heat inside the display through the built-in fins, then exchanges heat with the outside through the fins, and reduces the temperature inside the display.

[0031] The present application can exchange the air inside the display with the air outside by the active heat dissipation structure, realize active air intake, realize air exchange, temperature control, the air intake can be actively opened and closed according to the temperature change inside the display, closed when the temperature inside the display is low, especially closed for a long time in cold winter, thereby reducing the dust entering the display, and actively opening the air intake when the temperature inside the display is too high to exchange heat with the outside. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a front perspective structural schematic diagram of the present application;

[0033] Figure 2 It is a back perspective structural schematic diagram of the present application;

[0034] Figure 3 It is an explosive structural schematic diagram of the present application;

[0035] Figure 4 It is a passive heat dissipation structure structural schematic diagram of the present application;

[0036] Figure 5 It is an active heat dissipation structure structural schematic diagram of the present application;

[0037] Figure 6 It is a local structure schematic diagram of the present application;

[0038] Figure 7 It is an A part of the present application Figure 5 enlarged structural schematic diagram;

[0039] In the figure: 100, display mounting frame; 101, clamping block; 102, metal net frame; 103, air pipe A; 104, fan A; 200, display shell; 201, clamping groove; 202, through groove A; 203, heat exchange hole; 300, heat exchange plate; 301, heat exchange fin A; 302, heat exchange fin B; 303, air pipe B; 304, through groove B; 305, fan B; 400, air pipe; 401, temperature sensor; 500, baffle; 501, fixed pipe; 502, fixed rod; 503, guide rod; 504, guide rail; 505, spring A; 600, upper connecting piece; 601, upper connecting part; 602, spring B; 603, lower connecting part; 604, lower connecting piece; 700, servo motor; 701, driving rod. DETAILED DESCRIPTION

[0040] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0041] In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0042] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] Please refer to Figures 1-7 The present application provides a technical solution: a liquid crystal display screen capable of rapid heat dissipation, comprising;

[0044] The display mounting frame 100 and the display shell 200 have a spacing between them, and the inside of the display mounting frame 100 and the display shell 200 has a passive heat dissipation structure and an active heat dissipation structure;

[0045] The passive heat dissipation structure absorbs the heat inside the display through the built-in fins, then exchanges heat with the outside through the fins, reduces the temperature inside the display, and the passive heat dissipation structure can continuously dissipate heat inside the display, realizing uninterrupted heat dissipation. The fins extend out of the surface of the display, significantly increasing the surface area in contact with the air, thereby improving the heat exchange efficiency;

[0046] The active heat dissipation structure can exchange the air inside the display with the outside air, realize active air intake, realize air exchange, temperature exchange and temperature control, the connection between the inside of the display and the outside air can adjust the temperature through natural ventilation or air conditioning system, so as to ensure that the display runs at the best temperature, keeps the equipment in the appropriate working temperature range, prolongs the service life, and the air inlet can be actively opened and closed according to the temperature change in the display, closed when the temperature in the display is low, especially closed for a long time in cold winter, thereby reducing the dust entering the display, and the air inlet is actively opened when the temperature in the display is too high, and heat exchange with the outside.

[0047] Further, the passive heat dissipation structure includes a heat exchange plate 300, a heat exchange fin A 301, a heat exchange fin B 302, a wind pipe B 303, and a fan B 305;

[0048] A through slot A 202 is formed in the middle of the display shell 200, the heat exchange plate 300 is embedded in the inside of the through slot A 202, one side of the heat exchange plate 300 is in contact with the inside of the display shell 200, the other side of the heat exchange plate 300 is in contact with the outside of the display shell 200, thereby realizing the heat exchange function, the number of heat exchange fins A 301 is multiple, multiple heat exchange fins A 301 are welded on the outside of the heat exchange plate 300, one end of each heat exchange fin A 301 is wider than the other end, through the design of the structure, the area of the heat exchange fin A 301 in contact with the air is enlarged, and the heat exchange efficiency is higher, the end of the heat exchange fin A 301 with smaller width is welded and fixed with the heat exchange plate 300, and there is a spacing between every two heat exchange fins A 301,

[0049] The heat exchange fin B 302 is located on one side of the heat exchange plate 300, the heat exchange fin B 302 is in contact with the air outside the display shell 200, realizing the heat exchange effect, the contact area with the air is improved through the heat exchange fin B 302, thereby improving the heat exchange efficiency;

[0050] The wind pipe B 303 is fixedly connected to the outside of the heat exchange plate 300, and the fan B 305 is installed in the inside of the wind pipe B 303, the air flow is improved through the fan B 305 blowing, thereby greatly increasing the amount of air in contact with the heat exchange plate 300 and the heat exchange fin B 302, and improving the heat exchange efficiency.

[0051] Further, the heat exchange plate 300, the heat exchange fin A 301, the heat exchange fin B 302 and the wind pipe B 303 are all made of aluminum alloy material, the thermal conductivity of aluminum alloy is 237 W / mK, which is lower than that of copper, but in the same volume, the heat capacity of aluminum is higher, which can quickly cool down, thereby effectively taking away the heat, and after the oxidation treatment of the aluminum alloy, the thermal conductivity is further improved, the density of the aluminum alloy is about one third of that of copper, so that in the same heat dissipation capacity, the weight of the aluminum fin is lighter and the volume is smaller.

[0052] Further, the end of the air duct B303 is provided with a plurality of through grooves B304, and air is introduced from one end of the air duct B303, and then the air is discharged from the plurality of through grooves B304 to directly contact the heat exchange fins B302. The heat exchange fins B302 are provided in a plurality of numbers, and the plurality of heat exchange fins B302 are annularly distributed on the outer side of the air duct B303. Therefore, a wind channel can be formed between every two heat exchange fins B302, thereby improving the flowability of air.

[0053] Further, the active heat dissipation structure comprises an air duct 400, a temperature sensor 401, a baffle 500, an upper connecting piece 600, a spring B 602, a servo motor 700, and a driving rod 701.

[0054] A plurality of heat exchange holes 203 are formed on the outer side of the display shell 200, and the air duct 400 is buckled on the outer side of the heat exchange hole 203. The temperature sensor 401 is installed close to the display shell 200, and the baffle 500 is located away from the display shell 200. Therefore, the temperature sensor 401 is enclosed in the air duct 400 by the baffle 500. The temperature sensor 401 can monitor the temperature inside the display shell 200 in real time. When the temperature is high, the baffle 500 is actively opened to circulate air and exchange heat. The middle part of the baffle 500 is integrally provided with a fixed pipe 501, and the inside of the fixed pipe 501 is a hollow structure. A rotating shaft is penetrated in the inside of the fixed pipe 501, and the two ends of the rotating shaft are connected to the inner wall of the air duct 400. The fixed pipe 501 is rotationally connected with the air duct 400 through the rotating shaft.

[0055] Each air duct 400 has two guide rails 504 on both sides, and a spring A 505 is embedded in each guide rail 504. The two ends of the guide rod 503 are respectively inserted into the two guide rails 504 and are slidingly connected with the two guide rails 504. The two ends of the spring A 505 are respectively in contact with the guide rail 504 and the guide rod 503. The outer side of the fixed pipe 501 is integrally provided with two fixed rods 502, and the end of the fixed rod 502 away from the fixed pipe 501 is connected to the guide rod 503. The guide rod 503 is always kept at the top of the guide rail 504 without being affected by external force by the spring A 505 pushing the guide rod 503 upward.

[0056] The number of the upper connecting pieces 600 is two, the two upper connecting pieces 600 are sleeved outside the guide rod 503, one side of the upper connecting piece 600 abuts against the fixed rod 502, the bottom of each upper connecting piece 600 is provided with two upper connecting portions 601, one end of the upper connecting portion 601 is hinged to the upper connecting piece 600, and the outside of the servo motor 700 is sleeved with two lower connecting pieces 604, the top of each lower connecting piece 604 is provided with two lower connecting portions 603, the lower connecting portion 603 is hinged to the lower connecting piece 604, one spring B 602 is arranged between each two upper connecting portions 601 and lower connecting portions 603, and the two ends of the spring B 602 are fixedly connected with the upper connecting portion 601 and the lower connecting portion 603 respectively. When the lower connecting portion 603 moves on the driving rod 701, the spring B 602 pulls the upper connecting piece 600, so that the guide rod 503 is pulled downward, the guide rod 503 moves downward in the guide rail 504, the baffle 500 rotates, the end of the air pipe 400 is not closed, air exchange with the outside is realized, and heat exchange is realized.

[0057] Further, the cross section of the baffle 500 is in an "S" shape, the two ends of the baffle 500 abut against the outer wall of the display housing 200 and the inner wall of the air pipe 400 respectively, the end of the air pipe 400 can be closed through the baffle 500, the air pipe 400 is closed when the temperature in the display is low, especially for a long time in cold winter, so as to reduce the dust entering the display, and the air inlet is actively opened when the temperature in the display is too high, and heat exchange with the outside is realized.

[0058] Further, two external threads are formed in positions close to the two ends of the driving rod 701, the directions of the two external threads are opposite, and the lower connecting piece 604 is sleeved outside the driving rod 701 and is threadedly connected with the driving rod 701, so that the lower connecting piece 604 moves in two opposite directions when moving on the driving rod 701.

[0059] Further, the display mounting frame 100 is provided with a plurality of fixed metal mesh frames 102 on the top, the display is communicated through the metal mesh frame 102, air circulation can be realized under the supporting condition, heat accumulation is reduced, the middle of the display mounting frame 100 is integrally provided with an air pipe A 103, the inside of the air pipe A 103 is provided with a fan A 104, the outer wall of the heat exchange plate 300 is blown by the fan A 104, so that the heat exchange plate 300 contacts the airflow, and the heat exchange efficiency is improved, the airflow blown by the fan A 104 changes the direction after being blocked by the heat exchange plate 300, and diffuses to the periphery of the heat exchange plate 300, the airflow blows to the plurality of heat exchange fins A 301, the heat exchange efficiency of the heat exchange fin A 301 is improved, and part of the heat exchange fin A 301 contacts the heat exchange fin B 302, the heat on the heat exchange fin A 301 is directly transported to the heat exchange hole 203 through the airflow and discharged out of the display housing 200, and the heat exchange efficiency is greatly improved.

[0060] Further, the display mounting frame 100 and the display shell 200 are both trumpet-shaped, the trumpet-shaped display mounting frame 100 and the display shell 200 have a larger spacing, more structures can be loaded, and the trumpet-shaped display mounting frame 100 has more structures that can be loaded inside, and can store display screens and circuit elements.

[0061] Further, the display mounting frame 100 has a plurality of integral clamping blocks 101 on the outer side, the display shell 200 has a plurality of integral clamping grooves 201 on the inner side, the display mounting frame 100 is embedded inside the display shell 200, the clamping block 101 is clamped inside the clamping groove 201, the embedded design makes the structure more compact, and the clamping form makes the installation and disassembly between the display mounting frame 100 and the display shell 200 more convenient.

[0062] Working principle: the trumpet-shaped display mounting frame 100 stores display screens and circuit elements inside, the display mounting frame 100 and the display shell 200 are communicated inside through the metal net frame 102, air circulation can also be achieved under the support condition, heat accumulation is reduced, in conventional heat dissipation, one side of the heat exchange plate 300 is in contact with the inside of the display shell 200, the other side of the heat exchange plate 300 is in contact with the outside of the display shell 200, a plurality of heat exchange fins A301 are welded on the outside of the heat exchange plate 300, one end of each heat exchange fin A301 has a width greater than the other end, thereby expanding the area of the heat exchange fin A301 in contact with the air, the heat exchange fin B302 absorbs the temperature inside the display, and then transfers to the heat exchange plate 300, and heat exchange is carried out through the heat exchange plate 300 and the heat exchange fin B302 outside;

[0063] Further, when the temperature sensor 401 monitors that the temperature inside the display shell 200 is high, the fan A104, the fan B305 and the servo motor 700 are connected to the power supply, and the fan A104, the fan B305 and the servo motor 700 are actively opened;

[0064] When the fan A104 is started, the fan A104 blows the outer wall of the heat exchange plate 300, so that the heat exchange plate 300 contacts the airflow, thereby improving the heat exchange efficiency, and the wind blown by the fan A104 changes the wind direction after being blocked by the heat exchange plate 300, and diffuses to the four around the heat exchange plate 300, the airflow blows to the plurality of heat exchange fins A301, improves the heat exchange efficiency of the heat exchange fin A301, and part of the heat exchange fin A301 contacts the heat exchange fin B302, the heat on the heat exchange fin A301 is directly transported to the heat exchange hole 203 by the airflow to discharge the display shell 200, and the heat exchange efficiency is greatly improved;

[0065] When the servo motor 700 starts, the servo motor 700 drives the driving rod 701 to rotate, the directions of the two external threads on the driving rod 701 are opposite, so the lower connecting piece 604 moves in two opposite directions on the driving rod 701, when the lower connecting piece 603 moves on the driving rod 701, the spring B 602 pulls the upper connecting piece 600, so that the guide rod 503 is pulled downward, so that the guide rod 503 moves downward in the guide rail 504, so that the baffle 500 rotates, so that the end of the air pipe 400 is not closed, realizes contact with the outside air, realizes heat exchange;

[0066] When the fan B305 starts, the air flow is circulated by the fan B305, so that the air enters from one end of the air pipe B303, then the air is discharged from the plurality of through slots B304 to directly contact the heat exchange fins B302, and the number of heat exchange fins B302 is plurality, a plurality of heat exchange fins B302 are annularly distributed outside the air pipe B303, so that a wind channel can be formed between every two heat exchange fins B302, thereby improving the flowability of the air.

[0067] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid crystal display screen with rapid heat dissipation, characterized in that: Include; The display mounting rack (100) and the display shell (200) have a spacing between them, and the interior of the display mounting rack (100) and the display shell (200) has a passive heat dissipation structure and an active heat dissipation structure; The passive heat dissipation structure absorbs the heat inside the display through the built-in fins, then exchanges heat with the outside through the fins, reduces the temperature inside the display, and the passive heat dissipation structure can continuously dissipate heat inside the display, realizing uninterrupted heat dissipation. The fins extend out of the display surface, significantly increasing the surface area in contact with the air, thereby improving heat exchange efficiency; The active heat dissipation structure can exchange air inside the display with outside air, realize active air intake, realize air exchange and temperature control, and the connection between the display interior and the outside air can adjust the temperature through natural ventilation or an air conditioning system, thereby ensuring that the display operates at an optimal temperature, keeping the device within a suitable operating temperature range, prolonging its service life, and the air inlet can be actively opened and closed according to changes in the temperature inside the display. When the temperature inside the display is low, it is closed for a long time in cold winter, thereby reducing the dust entering the display, and when the temperature inside the display is too high, the air inlet is actively opened to exchange heat with the outside. The active heat dissipation structure includes an air pipe (400), a temperature sensor (401), a baffle (500), an upper connecting piece (600), a spring B (602), a servo motor (700), and a drive rod (701); The display shell (200) has a plurality of heat exchange holes (203) on the outside, and the number of air pipes (400) is multiple, the air pipes (400) are buckled on the outside of the heat exchange holes (203), the temperature sensor (401) is installed near the display shell (200), the baffle (500) is located away from the display shell (200) Position of air pipe (400), the middle part of baffle (500) has an integral fixed fixed pipe (501), and the inside of fixed pipe (501) is a hollow structure, a rotating shaft penetrates the inside of fixed pipe (501), both ends of rotating shaft are connected to the inner wall of air pipe (400), and fixed pipe (501) is rotationally connected with air pipe (400) through rotating shaft; Each air pipe (400) has two guide rails (504) on both sides, each guide rail (504) has a spring A (505) embedded inside, both ends of the guide rod (503) are respectively inserted into the inside of the two guide rails (504) and are slidingly connected with them, both ends of the spring A (505) are respectively abutted with the guide rails (504) and the guide rod (503), and the outside of the fixed pipe (501) has two integral fixed rods (502), one end of the fixed rod (502) away from the fixed pipe (501) is connected to the guide rod (503). The number of the upper connecting pieces (600) is two, the two upper connecting pieces (600) are sleeved outside the guide rod (503), one side of the upper connecting piece (600) abuts against the fixed rod (502), the bottom of each upper connecting piece (600) is provided with two upper connecting portions (601), one end of the upper connecting portion (601) is hinged to the upper connecting piece (600), and the outer side of the servo motor (700) is sleeved with two lower connecting pieces (604), the top of each lower connecting piece (604) is provided with two lower connecting portions (603), the lower connecting portion (603) is hinged to the lower connecting piece (604), and one spring B (602) is arranged between each two upper connecting portions (601) and lower connecting portions (603).

2. The liquid crystal display panel of claim 1, wherein: The passive heat dissipation structure comprises a heat exchange plate (300), heat exchange fins A (301), heat exchange fins B (302), an air duct B (303), and a fan B (305); A through groove A (202) is formed in the middle of the display shell (200), the heat exchange plate (300) is embedded in the through groove A (202), a plurality of heat exchange fins A (301) are welded to the outer side of the heat exchange plate (300), one end of each heat exchange fin A (301) is wider than the other end, the heat exchange fin A (301) is welded and fixed to the heat exchange plate (300), and a spacing is formed between each two heat exchange fins A (301), The heat exchange fins B (302) are located on one side of the heat exchange plate (300). The air duct B (303) is fixedly connected to the outer side of the heat exchange plate (300), and the fan B (305) is installed in the air duct B (303).

3. The liquid crystal display panel of claim 2, wherein: The heat exchange plate (300), the heat exchange fins A (301), the heat exchange fins B (302), and the air duct B (303) are all made of aluminum alloy.

4. The liquid crystal display panel of claim 2, wherein: The end of the air duct B (303) is provided with a plurality of through grooves B (304), and the number of the heat exchange fins B (302) is also a plurality, which are annularly distributed on the outer side of the air duct B (303).

5. The liquid crystal display panel of claim 1, wherein: The cross section of the baffle (500) is in the shape of "S", and the two ends of the baffle (500) abut against the outer wall of the display shell (200) and the inner wall of the air duct (400) respectively.

6. The liquid crystal display panel of claim 1, wherein: The positions close to the two ends of the drive rod (701) are provided with two external threads, the directions of the two external threads are opposite, and the lower connecting piece (604) is sleeved outside the drive rod (701) and is threadedly connected with the drive rod (701).

7. The liquid crystal display panel of claim 5, wherein: the liquid crystal display panel is capable of dissipating heat at a rate of at least 1000 watts per square meter. The display mounting rack (100) is provided with a plurality of fixed metal mesh racks (102) on the top, the middle of the display mounting rack (100) is integrally provided with an air duct A (103), and the inside of the air duct A (103) is provided with a fan A (104).

8. The liquid crystal display panel of claim 1, wherein: The display mounting rack (100) and the display shell (200) are both in the shape of a horn.

9. The liquid crystal display panel of claim 1, wherein: the liquid crystal display panel is capable of dissipating heat at a rate of at least 1000 watts per square meter. The outer side of the display mounting frame (100) is provided with a plurality of integrally fixed clamping blocks (101), and the inner side of the display shell (200) is provided with a plurality of integrally fixed clamping grooves (201); the display mounting frame (100) is embedded in the inner side of the display shell (200), and the clamping blocks (101) are clamped in the clamping grooves (201).

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