A liquid crystal display screen heat dissipation structure

Abstract

The utility model provides a kind of liquid crystal display screen heat dissipation structure, belong to liquid crystal display screen technical field;Including display screen body, further include:Heat dissipation mechanism, the heat dissipation mechanism includes the upper suction hole and lower backflow hole being opened in the side surface of display screen body, upper cover and suction fan are fixed in the side surface of display screen body corresponding upper suction hole place, suction fan is located in the inside of upper cover.The utility model is through setting heat exchange plate and suction fan, after suction fan operation, heat in display screen body interior is discharged from upper suction hole and flows through heat exchange plate position, hot air is heat-exchanged and cooled after flowing through heat exchange plate, and then backflow to the interior of display screen body, realize the heat dissipation of display screen body, not contact with external environment in the process of air flow, to prevent dust from entering the interior of display screen body, avoid dust to influence the heat dissipation of electronic component in the interior of display screen body, effectively slow down the aging speed of electronic component simultaneously, to extend the service life of display screen body.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, and in particular to a heat dissipation structure for a liquid crystal display. Background Technology

[0002] LCD screens are typically used as monitors for desktop computers. During operation, the internal electronic components of an LCD screen generate heat. To improve the heat dissipation capacity of the LCD screen, a cooling fan is usually installed on the back of the LCD screen. When the cooling fan is running, outside air enters the LCD screen, carries away the heat, and then exits through the cooling fan, thus achieving heat dissipation for the LCD screen. The cooling fan is the heat dissipation structure of the LCD screen.

[0003] In common LCD screens, cooling fans operate during heat dissipation. Outside air enters the LCD screen, carries away its internal heat, and is then exhausted from the cooling fans. However, outside air usually carries dust with it. After prolonged heat dissipation, the dust accumulated on the electronic components inside the LCD screen gradually increases, which affects the heat dissipation of the electronic components and accelerates their aging. Therefore, this application provides a heat dissipation structure for LCD screens to meet this requirement. Summary of the Invention

[0004] This utility model provides a heat dissipation structure for a liquid crystal display screen to solve the problem that during the heat dissipation process of a liquid crystal display screen, dust accumulates on the internal electronic components, thereby affecting the heat dissipation of the internal electronic components and accelerating the aging of the electronic components.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A heat dissipation structure for a liquid crystal display screen includes a display screen body and further includes: The heat dissipation mechanism includes an upper suction hole and a lower return hole on the side of the display screen body. An upper cover and an exhaust fan are fixed on the side of the display screen body corresponding to the upper suction hole. The exhaust fan is located inside the upper cover. A lower cover is fixed on the side of the display screen body corresponding to the lower return hole. A connecting shell is connected between the upper cover and the lower cover. A heat exchange plate is fixed on the side of the upper cover and the lower cover away from the display screen body. The heat exchange plate is fixed at the opening of the connecting shell. A support base is installed at the bottom of the lower cover. The gap between the connecting shell and the display screen body forms an air flow channel. After the exhaust fan starts running, the heat inside the display screen body exchanges heat with the outside air through the heat exchange plate and then flows back into the display screen body body.

[0006] Preferably, a guide strip is fixed at the bottom of the upper cover corresponding to the airflow channel, and the bottom of the guide strip is a downward curved surface.

[0007] Preferably, the connecting shell has a protrusion bent on the side near the display screen body, and the protrusion is arc-shaped.

[0008] Preferably, a heat exchange component is fixed to the side of the heat exchange plate away from the display screen body and at the position corresponding to the protrusion.

[0009] Preferably, the heat exchange assembly includes several heat exchange fins fixed on the side of the heat exchange plate away from the display screen body. The side of the several heat exchange fins away from the heat exchange plate is connected to a sealing plate. The side of the sealing plate has a notch, and a blower is fixed on the side of the heat exchange fins corresponding to the notch.

[0010] Preferably, a filter screen is fixed at the air inlet of the hair dryer.

[0011] Preferably, the top of the upper cover and the bottom of the lower cover are both integrally formed with inclined portions.

[0012] Compared with the prior art, this utility model has at least the following beneficial effects: In the above solution, by setting up a heat exchange plate and an exhaust fan, after the exhaust fan is running, the heat inside the display screen body is discharged from the upper suction hole and flows through the heat exchange plate. The hot air flows through the heat exchange plate to exchange heat with the outside air and cool down before flowing back into the display screen body to achieve heat dissipation. During the air flow process, it does not come into contact with the external environment, thereby preventing dust from entering the display screen body and avoiding dust affecting the heat dissipation of the electronic components inside the display screen body. At the same time, it effectively slows down the aging rate of electronic components, thereby extending the service life of the display screen body.

[0013] By setting up a heat exchange component, when the hot airflow flows through the channel between the connecting shell and the heat exchange plate, the blower is activated, causing outside air to blow towards the heat exchange fins and heat exchange plate, accelerating the airflow speed at the heat exchange fins and heat exchange plate, improving the heat exchange capacity at the heat exchange plate, thereby achieving effective cooling of the hot airflow, further reducing the temperature of the airflow returning to the inside of the display screen body, and thus improving the heat dissipation capacity of the display screen body.

[0014] By setting up the protrusion, when the hot airflow flows in the channel between the connecting shell and the heat exchange plate, it is guided by the protrusion and forced to flow to the corresponding heat exchange fins of the heat exchange plate, further improving the heat exchange capacity of the corresponding heat exchange fins of the heat exchange plate, further improving the cooling capacity of the hot airflow, and ultimately improving the heat dissipation capacity of the display screen body. At the same time, the protrusion also increases the size of the airflow channel between the connecting shell and the display screen body, thereby improving the heat dissipation capacity of the airflow channel.

[0015] By setting up air guide strips, when the heat generated inside the display screen is transferred to the airflow channel, the characteristics of hot air rising and cold air sinking are utilized. As the hot air moves upward, it is guided by the downward-curving surface at the bottom of the air guide strip, which disperses the hot air at both ends of the air guide strip, reducing the accumulation of hot air in the airflow channel and assisting in the heat dissipation of the display screen. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the upper cover of this utility model; Figure 3 This is a three-dimensional structural diagram of the connecting shell of this utility model; Figure 4 This is a side sectional view of the connecting shell of this utility model; Figure 5 This is a three-dimensional structural diagram of the exhaust fan of this utility model.

[0017] In the diagram: 1. Display screen body; 2. Heat dissipation mechanism; 3. Upper cover; 4. Lower cover; 5. Connecting shell; 6. Heat exchange plate; 7. Protrusion; 8. Guide strip; 9. Exhaust fan; 10. Inclined part; 11. Heat exchange fins; 12. Sealing plate; 13. Blower; 14. Heat exchange assembly; 15. Upper suction hole; 16. Lower return hole.

[0018] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0019] The following is a detailed description of a heat dissipation structure for a liquid crystal display screen provided by this utility model, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0020] like Figures 1-5 As shown, an embodiment of the present invention provides a heat dissipation structure for a liquid crystal display screen, including a display screen body 1, and further comprising: The heat dissipation mechanism 2 includes an upper suction hole 15 and a lower return hole 16 on the side of the display screen body 1. An upper cover 3 and an exhaust fan 9 are fixed on the side of the display screen body 1 corresponding to the upper suction hole 15. The exhaust fan 9 is located inside the upper cover 3. A lower cover 4 is fixed on the side of the display screen body 1 corresponding to the lower return hole 16. A connecting shell 5 is connected between the upper cover 3 and the lower cover 4. A heat exchange plate 6 is fixed on the side of the upper cover 3 and the lower cover 4 away from the display screen body 1. The heat exchange plate 6 is a copper plate with excellent thermal conductivity. The heat exchange plate 6 is fixed at the opening of the connecting shell 5. A support base is installed at the bottom of the lower cover 4. The support base can be connected to the lower cover 4 through a damper to realize the adjustment of the vertical angle of the display screen body 1 (this is the prior art and will not be described in detail). The gap between the connecting shell 5 and the display screen body 1 forms an air flow channel. After the exhaust fan 9 starts running, the heat inside the display screen body 1 exchanges heat with the outside air through the heat exchange plate 6 and then flows back into the display screen body 1. Utilizing the closed-loop airflow path of the above structure, the heat inside the display screen body 1 is discharged through the upper suction hole 15. After completing heat exchange and cooling with the outside air at the heat exchange plate 6, it flows back through the lower return hole 16. The air circulates in a closed channel throughout the process, avoiding direct contact with the external environment. This effectively prevents dust from entering the display screen body 1, avoids dust adhering to the surface of electronic components and affecting heat dissipation, slows down the aging rate of electronic components caused by dust accumulation, and thus extends the service life of the display screen body 1.

[0021] like Figure 3 As shown in this embodiment, a guide strip 8 is fixed at the bottom of the upper cover 3 corresponding to the air flow channel. The bottom of the guide strip 8 is a downward curved surface. When the heat generated inside the display body 1 is transferred to the air flow channel, based on the characteristics of hot air rising and cold air sinking, the downward curved surface at the bottom of the guide strip 8 can guide the hot air during the upward movement of the hot air, so that the hot air is dispersed and flows to both ends of the guide strip 8, avoiding the accumulation of hot air in the air flow channel and assisting the display body 1 in heat dissipation.

[0022] like Figure 3 and Figure 4 As shown in this embodiment, the connecting shell 5 has a protrusion 7 bent on the side near the display screen body 1. The protrusion 7 is arc-shaped. When the hot air flows in the channel between the connecting shell 5 and the heat exchange plate 6, the arc-shaped protrusion 7 can forcibly change the direction of the hot air flow, guide the hot air flow to concentrate on the heat exchange plate 6, increase the contact efficiency between the hot air flow and the heat exchange fins 11, further improve the heat exchange capacity at this point, thereby enhancing the cooling effect on the hot air flow. At the same time, the protrusion 7 increases the space of the air flow channel between the connecting shell 5 and the display screen body 1, and improves the heat dissipation capacity of the air flow channel itself.

[0023] like Figure 2As shown in this embodiment, a heat exchange component 14 is fixed on the side of the heat exchange plate 6 away from the display body 1 and corresponding to the protrusion 7. After the protrusion 7 guides the hot airflow to a specific area of ​​the heat exchange plate 6, the heat exchange component 14 can specifically enhance the heat dissipation of the hot airflow in that area. By cooperating with the protrusion 7, the heat exchange efficiency of the hot airflow at the specific position of the heat exchange plate 6 is further improved, the temperature of the hot airflow is reduced, and thus the overall heat dissipation capacity of the display body 1 is improved.

[0024] like Figures 2-4 As shown in this embodiment, the heat exchange assembly 14 includes several heat exchange fins 11 fixed on the side of the heat exchange plate 6 away from the display screen body 1. The side of the several heat exchange fins 11 away from the heat exchange plate 6 is connected to a sealing plate 12. The side of the sealing plate 12 has a notch. A blower 13 is fixed at the corresponding notch on the side of the heat exchange fins 11. When the exhaust fan 9 is started to make the hot air flow through the heat exchange plate 6, the blower 13 is started at the same time to blow the outside air towards the heat exchange fins 11 and the heat exchange plate 6. The sealing plate 12 is used to make the airflow flow only between two adjacent heat exchange fins 11. The heat exchange fins 11 increase the heat dissipation area of ​​the heat exchange plate 6, while the blower 13 accelerates the air flow rate on the surface of the heat exchange fins 11 and the heat exchange plate 6, which greatly improves the heat exchange efficiency between the hot air and the outside air, further reduces the temperature of the hot air, and makes the temperature of the air flowing back into the display screen body 1 even lower, thereby enhancing the heat dissipation effect of the display screen body 1.

[0025] like Figure 2 As shown in this embodiment, a filter screen is fixed at the air inlet of the blower 13. The filter screen can filter the outside air entering the blower 13 to prevent dust, impurities and other contaminants in the air from entering the heat exchange component 14 and to avoid dust adhering to the surface of the heat exchange fins 11 and the heat exchange plate 6, which would affect the heat exchange efficiency.

[0026] like Figure 2 As shown, in this embodiment, the top of the upper cover 3 and the bottom of the lower cover 4 are both integrally formed with inclined portions 10. The inclined portions 10 optimize the airflow path in the upper cover 3 and the lower cover 4, reduce airflow resistance, and enable hot air to more smoothly enter the channel between the connecting shell 5 and the heat exchange plate 6 from the display body 1 through the upper cover 3, and smoothly flow back to the display body 1 through the lower cover 4.

[0027] Working principle: When the display screen body 1 is working, the exhaust fan 9 is started. After the exhaust fan 9 runs, it generates suction. The heat generated inside the display screen body 1 is discharged from the upper suction hole 15 into the upper cover 3. Under the guidance of the inclined part 10 on the upper cover 3, it enters the channel between the connecting shell 5 and the heat exchange plate 6, and then flows down into the lower cover 4. After being guided by the inclined part 10 in the lower cover 4, it flows back into the display screen body 1 through the lower return hole 16. After the hot air comes into contact with the heat exchange plate 6, it exchanges heat with the outside air through the heat exchange plate 6, reducing the temperature of the air entering the display screen body 1. Since the air always circulates in the closed channel and does not come into direct contact with the outside environment, it effectively prevents dust from entering the display screen body 1, avoids dust adhering to electronic components and affecting heat dissipation, slows down the aging of electronic components, and extends the service life of the display screen body 1. The protrusion 7 on the side of the connecting shell 5 near the display body 1 is arc-shaped. When the hot air flows through the channel between the connecting shell 5 and the heat exchange plate 6, the protrusion 7 guides the hot air flow and forces the hot air flow to the side of the heat exchange plate 6 corresponding to the heat exchange fins 11, thereby enhancing the heat exchange efficiency at this location. At the same time as the exhaust fan 9 starts, the blower 13 starts simultaneously. After being filtered by the filter, the outside air is blown toward the heat exchange fins 11 and the heat exchange plate 6 and then discharged from the end of the heat exchange fins 11. The large flow of air accelerates the airflow speed on the surface of the heat exchange fins 11 and the heat exchange plate 6, improves the heat exchange efficiency between the hot airflow and the outside air at the position of the heat exchange fins 11 on the heat exchange plate 6, further reduces the temperature of the hot airflow, and makes the temperature of the air flowing back into the display screen body 1 even lower, thus enhancing the heat dissipation effect. When the heat generated inside the display body 1 is transferred to the air flow channel, the hot air rises and the cold air sinks. As the hot air moves upward, it is guided by the downward curved surface at the bottom of the guide strip 8, which disperses the hot air at both ends of the guide strip 8, reducing the accumulation of hot air in the air flow channel and assisting in the heat dissipation of the display body 1.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A heat dissipation structure for a liquid crystal display screen, comprising a display screen body (1), characterized in that, Also includes: Heat dissipation mechanism (2), the heat dissipation mechanism (2) includes an upper suction hole (15) and a lower return hole (16) opened on the side of the display body (1). An upper cover (3) and an exhaust fan (9) are fixed on the side of the display body (1) corresponding to the upper suction hole (15). The exhaust fan (9) is located inside the upper cover (3). A lower cover (4) is fixed on the side of the display body (1) corresponding to the lower return hole (16). A connecting shell (5) is connected between the upper cover (3) and the lower cover (4). A heat exchange plate (6) is fixed on the side of the upper cover (3) and the lower cover (4) away from the display body (1). The heat exchange plate (6) is fixed at the opening of the connecting shell (5). A support base is installed at the bottom of the lower cover (4). The gap between the connecting shell (5) and the display body (1) forms an air flow channel. After the exhaust fan (9) is running, the heat inside the display screen body (1) is exchanged with the outside air through the heat exchange plate (6) and then flows back to the inside of the display screen body (1).

2. The heat dissipation structure for a liquid crystal display screen according to claim 1, characterized in that, The bottom of the upper cover (3) is fixed with a guide strip (8) at the air flow channel, and the bottom of the guide strip (8) is a downward curved surface.

3. The heat dissipation structure for a liquid crystal display screen according to claim 1, characterized in that, The connecting shell (5) has a protrusion (7) bent on the side near the display screen body (1), and the protrusion (7) is arc-shaped.

4. The heat dissipation structure for a liquid crystal display screen according to claim 3, characterized in that, The heat exchange plate (6) is fixed with a heat exchange component (14) on the side away from the display screen body (1) and corresponding to the protrusion (7).

5. The heat dissipation structure for a liquid crystal display screen according to claim 4, characterized in that, The heat exchange assembly (14) includes several heat exchange fins (11) fixed on the side of the heat exchange plate (6) away from the display screen body (1). The side of the several heat exchange fins (11) away from the heat exchange plate (6) is connected to a sealing plate (12). The side of the sealing plate (12) has a notch, and a blower (13) is fixed on the side of the heat exchange fins (11) corresponding to the notch.

6. The heat dissipation structure for a liquid crystal display screen according to claim 5, characterized in that, A filter screen is fixed at the air inlet of the hair dryer (13).

7. The heat dissipation structure for a liquid crystal display screen according to claim 1, characterized in that, The top of the upper cover (3) and the bottom of the lower cover (4) are both integrally formed with inclined portions (10).

Images