Heat dissipation and demisting structure for liquid crystal display screen of license plate recognition all-in-one machine

Abstract

The utility model belongs to the technical field of heat dissipation and demisting of display screens, and particularly relates to a heat dissipation and demisting structure of a liquid crystal display screen of a license plate recognition all-in-one machine, which comprises a shell, a square through groove is formed in one side of the shell, toughened glass is fixedly connected to one side of the shell, and a fixing support is mounted on one side of the shell. And a liquid crystal display screen body is mounted in the fixed bracket. Through the fixing support and the first cooling fan, the first cooling fan is started, a negative pressure area is formed inside, and air can naturally flow into the fixing support through a grating at the bottom of the fixing support and a lower shutter, a door gap and the like at the bottom of equipment. The heat and moisture in the cavity between the liquid crystal display screen body and the tempered glass are taken away from the shell and discharged through the upper louver of the shell, and the situation that temperature difference occurs between the inside and the outside, consequently, water mist occurs in a tempered glass window of equipment, and normal use of the equipment is affected is avoided.

Description

Technical Field

[0001] This utility model relates to the field of display screen heat dissipation and defogging technology, and in particular to a heat dissipation and defogging structure for a license plate recognition integrated machine's LCD display screen. Background Technology

[0002] With the rapid development of information technology, the Internet of Things, and image recognition, the field of parking lot entrance and exit management equipment has ushered in unprecedented innovation and development. Driven by this technological wave, display technology has achieved a leapfrog upgrade from traditional LED displays to high-definition LCD displays. This technological revolution has resulted in more delicate image display effects, richer colors, and more accurate image quality, easily meeting the high-quality display needs of high-speed dynamic images. With the rapid development of parking lot entrance and exit management equipment technology, LCD display technology has further matured and gained increased social acceptance, leading to its widespread application in various parking lots. Indeed, the popularization and application of LCD displays have brought numerous conveniences to our lives.

[0003] Currently, after prolonged use in outdoor high-temperature environments, the LCD screens of parking lot equipment often experience problems such as poor heat dissipation due to the small internal space, or condensation on the tempered glass windows due to temperature differences between the inside and outside of the equipment caused by weather conditions. This not only prevents drivers from clearly seeing the displayed content when vehicles pass by, but also creates difficulties for parking lot operators and managers. Summary of the Invention

[0004] To address the aforementioned problems, this utility model proposes a heat dissipation and defogging structure for the LCD screen of a license plate recognition integrated machine, in order to more accurately solve the problems described above.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model proposes a heat dissipation and defogging structure for the LCD screen of a license plate recognition integrated machine, including a housing. A square through groove is provided on one side of the housing. Tempered glass is fixedly connected to one side of the housing. A fixed bracket is installed on one side of the housing. The LCD screen body is installed inside the fixed bracket. There is a gap between the LCD screen body and the tempered glass. Two circular through grooves are provided on one side of the fixed bracket. A cover plate is installed on the other side of the housing. An upper louver and a lower louver are installed on the cover plate. A grille is provided at the bottom of the fixed bracket. The grille is located between the LCD screen body and the tempered glass.

[0007] Furthermore, a first cooling fan is installed on the other side of the fixed bracket at the circular through groove, and the two first cooling fans are aligned with the upper louvers.

[0008] Furthermore, a camera mounting bracket is fixedly connected to one side of the fixed bracket, and two second cooling fans are fixedly connected to the inside of the cover plate. The second cooling fans are located between the cover plate and the camera mounting bracket. One side of the second cooling fan is aligned with the first cooling fan, and the other side of the second cooling fan is aligned with the upper louver.

[0009] Furthermore, one side of the fixed bracket is provided with multiple heat dissipation holes, which penetrate the fixed bracket.

[0010] Furthermore, one side of the fixed bracket is provided with multiple through mounting slots, in which air switches, main control boards and switching power supplies are respectively installed. The air switches, main control boards and switching power supplies are all connected to the LCD screen body.

[0011] Furthermore, the fixed bracket is provided with a square notch, and a mounting base is fixedly connected to the side wall of the square notch. The mounting base and the housing are fixedly connected by screws, and the LCD screen body is located between the mounting base and the fixed bracket.

[0012] Furthermore, both the side wall of the fixed bracket and the side wall of the mounting base are provided with mounting holes for fixing the LCD screen body, and there is a gap between the LCD screen body and the inner side of the fixed bracket.

[0013] Furthermore, the two sides of the fixed bracket are designed to be closed.

[0014] The beneficial effects of this utility model are:

[0015] This utility model proposes a heat dissipation and defogging structure for the LCD screen of a license plate recognition integrated machine. By setting up a fixed bracket and a first cooling fan, when the first cooling fan is activated, a negative pressure area is formed inside. Due to the presence of negative pressure, air will naturally flow into the fixed bracket through the grille at the bottom of the fixed bracket, the bottom louvers of the device, and door gaps. This draws away the heat and moisture inside the cavity between the LCD screen body and the tempered glass from the shell and exhausts it through the upper louvers of the shell, thereby achieving the exchange of external air, reducing the temperature of the LCD screen body and the humidity inside the shell, and avoiding the occurrence of water fogging on the tempered glass window of the device due to the temperature difference between the inside and outside, which would affect the normal use of the device.

[0016] A heat dissipation and defogging structure for the LCD screen of a license plate recognition all-in-one machine is provided. The structure features a fixed bracket with a grille at the bottom to facilitate air intake and heat dissipation. The sides are enclosed to prevent airflow from overflowing to the sides and to prevent insects such as geckos and cockroaches from entering the cavity between the LCD screen body and the tempered glass. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the upper and lower louvers of this utility model.

[0019] Figure 3 This is a schematic diagram of the fixing bracket of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first cooling fan and the second cooling fan of this utility model;

[0021] Figure 5 This is a schematic diagram of the airflow inside the casing of this utility model.

[0022] The attached diagram is labeled as follows: 1. Housing; 2. Tempered glass; 3. Mounting bracket; 4. LCD screen body; 5. Cover plate; 6. Upper louver; 7. Lower louver; 8. Grille; 9. First cooling fan; 10. Camera mounting bracket; 11. Second cooling fan; 12. Heat dissipation hole; 13. Air switch; 14. Main control board; 15. Switching power supply; 16. Mounting base. Detailed Implementation

[0023] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.

[0024] Please refer to Figures 1-5 This utility model proposes a heat dissipation and defogging structure for the LCD screen of a license plate recognition integrated machine. It includes a housing 1, with a square through-slot on one side. Tempered glass 2 is fixedly connected to one side of the housing 1. A fixing bracket 3 is installed on one side of the housing 1, and an LCD screen body 4 is installed inside the fixing bracket 3. There is a gap between the LCD screen body 4 and the tempered glass 2. Two circular through-slots are provided on one side of the fixing bracket 3. A cover plate 5 is installed on the other side of the housing 1, with upper louvers 6 and lower louvers 7 installed on the cover plate 5. A grille 8 is provided at the bottom of the fixing bracket 3, located between the LCD screen body 4 and the tempered glass 2. Between the glass 2, during use, air enters the housing 1 through the lower louver 7. After entering the housing 1, the air enters the fixed bracket 3 through the grille 8 at the bottom of the fixed bracket 3. When the air passes upward through the fixed bracket 3, it passes between the LCD screen body 4 and the tempered glass 2, and then dissipates through the two circular channels on one side of the fixed bracket 3. While blowing out, it carries away the heat from the LCD screen body 4, which plays a role in heat dissipation for the LCD screen body 4, reduces the temperature difference between the inside and the outside, and avoids water vapor phenomenon on the tempered glass 2 window of the device due to the temperature difference between the inside and the outside, which would affect the normal use of the device.

[0025] like Figure 3 , Figure 4 and Figure 5As shown, two first cooling fans 9 are installed on the other side of the fixed bracket 3 at the circular through slot. The two first cooling fans 9 are aligned with the upper louver 6. A camera mounting bracket 10 is fixedly connected to one side of the fixed bracket 3. Two second cooling fans 11 are fixedly connected to the inside of the cover plate 5. The second cooling fans 11 are located between the cover plate 5 and the camera mounting bracket 10. One side of the second cooling fan 11 is aligned with the first cooling fan 9, and the other side of the second cooling fan 11 is aligned with the upper louver 6. When the air enters the fixed bracket 3 through the grille 8, the first cooling fan 9 and the second cooling fan 11 are turned on. The first cooling fan 9 starts and draws the heat and moisture inside the cavity between the LCD screen body 4 and the tempered glass 2 from the housing 1 and exhausts it through the upper louver 6 of the housing 1. This process will create a negative pressure area inside. The presence of pressure allows air to flow naturally into the fixed bracket 3 through the grille 8 at the bottom of the fixed bracket 3, the bottom louvers 7 of the equipment, and door gaps, thereby achieving the exchange of outside air, reducing the temperature of the LCD screen body 4 and the humidity inside the housing 1. The first cooling fan 9 and the second cooling fan 11 actively accelerate the dissipation of heat, avoiding situations where the LCD screen body 4 becomes too hot in summer, causing it to go black or other abnormal phenomena, requiring the LCD screen body 4 to cool down before it can be used normally. Or, due to the influence of weather, if there is a temperature difference between the inside and outside of the housing 1, causing water vapor to appear on the window glass of the LCD screen body 4, the equipment maintenance personnel need to go to the parking lot to disassemble the equipment and wipe off the water vapor or wait for the water vapor on the glass to evaporate naturally before it can be used normally, thus affecting timely use.

[0026] like Figure 4 As shown, a plurality of heat dissipation holes 12 are provided on one side of the fixed bracket 3, and the heat dissipation holes 12 penetrate the fixed bracket 3. A plurality of through mounting slots are provided on one side of the fixed bracket 3, and an air switch 13, a main control board 14 and a switching power supply 15 are respectively installed in the mounting slots. The air switch 13, the main control board 14 and the switching power supply 15 are all connected to the LCD screen body 4. Through the through mounting slots and heat dissipation slots, the heat dissipation on the LCD screen body 4 is further accelerated, preventing problems such as water vapor caused by weather and abnormal overheating of the LCD screen body 4 in summer.

[0027] like Figure 3 and Figure 4As shown, the fixed bracket 3 has a square notch, and the mounting base 16 is fixedly connected to the side wall of the square notch. The mounting base 16 is fixedly connected to the housing 1 by screws. The LCD screen body 4 is located between the mounting base 16 and the fixed bracket 3. The side wall of the fixed bracket 3 and the side wall of the mounting base 16 are both provided with mounting holes for fixing the LCD screen body 4. There is a gap between the LCD screen body 4 and the inner side of the fixed bracket 3. There is a gap between the upper end of the LCD screen body and the fixed bracket 3, and there is also a gap between the rear side and the fixed bracket 3 to facilitate air circulation and heat dissipation of the LCD screen body, avoiding heat accumulation and difficulty in dissipation.

[0028] like Figure 3 As shown, the fixed bracket 3 has a closed design on both sides to prevent airflow from spilling out to both sides, and to prevent insects such as geckos and cockroaches from entering the cavity between the LCD screen body 4 and the tempered glass 2.

[0029] Working principle: When the first cooling fan 9 starts, a negative pressure area is formed inside. Due to the presence of negative pressure, air will naturally flow into the fixed bracket 3 through the grille 8 at the bottom of the fixed bracket 3, the lower louver 7 at the bottom of the device, the door gap, etc. The heat and moisture inside the cavity between the LCD screen body 4 and the tempered glass 2 are drawn away from the shell 1 and discharged through the upper louver 6 of the shell 1 by the second cooling fan 11.

[0030] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A license plate recognition all-in-one machine liquid crystal display screen heat dissipation and defogging structure, characterized in that, Including the shell, one side of the shell is equipped with square through slot, one side of the shell is fixedly connected with toughened glass, one side of the shell is installed with fixed support, the inside of the fixed support is installed with LCD body, there is gap between the LCD body and the toughened glass, one side of the fixed support is equipped with two circular through slots, the other side of the shell is installed with cover plate, the cover plate is installed with upper louver and lower louver, the bottom of the fixed support is provided with grid, the grid is located between the LCD body and the toughened glass; The other side of the fixed support is installed with first cooling fan at the circular through slot, two first cooling fans are aligned with the upper louver.

2. The license plate recognition all-in-one machine liquid crystal display screen heat dissipation and defogging structure of claim 1, characterized in that, One side of the fixed support is fixedly connected with camera mounting support, the inside of the cover plate is fixedly connected with two second cooling fans, the second cooling fan is located between the cover plate and the camera mounting support, one side of the second cooling fan is aligned with the first cooling fan, the other side of the second cooling fan is aligned with the upper louver.

3. The license plate recognition all-in-one machine liquid crystal display screen heat dissipation and defogging structure of claim 1, characterized in that, One side of the fixed support is equipped with a plurality of heat dissipation holes, the heat dissipation holes pass through the fixed support.

4. The license plate recognition all-in-one machine liquid crystal display screen heat dissipation and defogging structure of claim 1, characterized in that, One side of the fixed support is equipped with a plurality of through installation grooves, the air switch, the main control board and the switching power supply are respectively installed in the installation grooves, and the air switch, the main control board and the switching power supply are connected with the LCD body.

5. The license plate recognition all-in-one machine liquid crystal display screen heat dissipation and defogging structure of claim 1, characterized in that, The fixed support is provided with a square notch, the side wall of the square notch is fixedly connected with a mounting seat, and the mounting seat and the shell are fixedly connected through screws.

6. The license plate recognition all-in-one machine liquid crystal display screen heat dissipation and defogging structure of claim 5, characterized in that, The side wall of the fixed support and the side wall of the mounting seat are both provided with mounting holes for fixing the LCD body, and there is a gap between the LCD body and the inside of the fixed support.

7. The license plate recognition all-in-one machine liquid crystal display screen heat dissipation and defogging structure of claim 1, characterized in that, The two sides of the fixed support are closed design.

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