CN219143236U - Wide-temperature LVDS liquid crystal display with efficient heat dissipation - Google Patents

Abstract

This application relates to a wide-temperature LVDS liquid crystal display with high-efficiency heat dissipation, belonging to the field of liquid crystal displays, including a back cover, a casing, and a liquid crystal display and a main board installed in the casing. The back cover is fixed and installed on the One side surface of the housing, one side surface of the rear cover is provided with an air inlet, the inner wall of the housing is provided with a heat sink, the heat sink includes an aluminum alloy base, one side of the aluminum alloy base The surface is attached to one side surface of the main board. This application has the advantages of setting up a heat dissipation device, which is convenient for focusing on the heat dissipation of the main heating unit of the chip on the motherboard, so that the heat can be conducted out more efficiently, and then the purpose of cooling can be achieved. The heat generated during the operation of the motherboard is transferred to the heat pipe through the aluminum alloy base , the heat is transported to the other end of the heat pipe along the heat pipe, and the contact with the heat dissipation fin will be conducted to the heat dissipation fin, and the heat dissipation fin will transfer the heat to the outside of the rear cover through the heat dissipation port to achieve the effect of heat dissipation.

Description

A wide temperature LVDS liquid crystal display with efficient heat dissipation

technical field

The present application relates to the technical field of liquid crystal screens, in particular to a wide-temperature LVDS liquid crystal screen with high-efficiency heat dissipation.

Background technique

Displays are also often referred to as monitors. The display is an I/O device belonging to the computer, that is, an input and output device. It is a display tool that displays a certain electronic file on the screen through a specific transmission device and then reflects it to the human eye. According to different manufacturing materials, it can be divided into: cathode ray tube display (CRT), plasma display PDP, liquid crystal display LCD and so on. According to the supported working temperature range, the display screens are divided into three types: normal temperature, wide temperature and super wide temperature. ℃, ultra-wide temperature display supports working temperature between -40℃~+90℃.

The liquid crystal screen uses liquid crystal material as the basic component, fills the liquid crystal material between two parallel plates, and changes the alignment of molecules inside the liquid crystal material through voltage to achieve the purpose of shading and light transmission to display different shades and scattered There is a uniform image, and as long as a three-color filter layer is added between two flat plates, a color image can be displayed.

At present, as the temperature in summer is getting higher and higher, the heat generated by the LCD screen is relatively large, but the existing LCD screen cooling device takes up a lot of space, making the LCD screen too thick, and there is no key heat dissipation adjustment for the chip with the largest heat generation on the motherboard. The problem, thus affecting the service life of the LCD screen.

Utility model content

In order to dissipate heat and cool down the liquid crystal screen and increase the service life of the liquid crystal screen, the present application provides a wide-temperature LVDS liquid crystal screen with high-efficiency heat dissipation.

A wide-temperature LVDS liquid crystal display with high-efficiency heat dissipation provided by this application adopts the following technical solutions:

A wide-temperature LVDS LCD screen with high-efficiency heat dissipation, including a back cover, a housing, and a LCD screen and a main board installed in the housing, and the back cover is fixed and installed on one side of the housing by fastening bolts , one side surface of the rear cover is provided with an air inlet, the inner wall of the housing is provided with a heat dissipation device, and the heat dissipation device includes an aluminum alloy base, and one side surface of the aluminum alloy base is connected to one side of the main board Surface bonding;

The outer surface of the rear cover is provided with a disassembly mechanism, the disassembly mechanism includes a fan, and the air outlet end of the fan is horizontally aligned with the outer surface of the air inlet.

Optionally, the heat dissipation device further includes a heat pipe, one end of the heat pipe is fixedly connected to the other side surface of the aluminum alloy base, and a plurality of heat dissipation fins are evenly distributed on the outer surface of the heat pipe.

Optionally, one side surface of the back cover is provided with a heat dissipation port, the other end of the heat pipe and one side of the heat dissipation fin extend to the inner wall of the heat dissipation port, and the outer surface of the heat dissipation port is passed through a tight The dust-proof net is fixedly installed with solid bolts.

Optionally, the dismounting mechanism further includes a support plate, the inner wall of the support plate is slidably engaged with a movable plate, and one end of the movable plate extends to the upper surface of the support plate and is fixedly connected with an upper hook, Two lower hooks are fixedly connected to the lower end of one side of the support plate.

Optionally, an installation groove is opened through the outer surface of the support plate, the outer surface of the fan is installed on the inner wall of the installation groove, a plurality of cooling holes are opened on both sides of the support plate, and the heat dissipation One end of the hole communicates with the inner wall of the installation groove.

Optionally, a vent is opened on one side surface of the rear cover, and a filter is provided on the inner wall of the air inlet.

In summary, the present application includes at least one of the following beneficial technical effects:

By setting the cooling device, it is convenient to focus on the heat dissipation of the main heating unit of the chip on the motherboard, so that the heat can be conducted out more efficiently, and then the purpose of cooling can be achieved. The heat generated by the motherboard is transferred to the heat pipe through the aluminum alloy base, and the heat is along the The heat pipe is transported to the other end of the heat pipe, and the contact with the heat dissipation fin will be conducted to the heat dissipation fin, and the heat dissipation fin will transfer the heat to the outside of the rear cover through the heat dissipation port to achieve the effect of heat dissipation.

By setting the disassembly mechanism, it is easy to disassemble and assemble the fan, and prevent the fan from occupying a large amount of space on the LCD screen during daily use. When the LCD screen needs to be cooled for a long time, the fan is installed on the back cover and can be disassembled when not in use. At the same time, it is easy to carry. According to the shape of the shell, first let the two lower hooks clamp the lower surface of the shell, and then pull the movable plate to make the upper hooks lock with the upper surface of the shell, so that the fan is installed on the back cover Finally, start the fan to send the wind into the casing through the air inlet, and transmit the heat through the vent to achieve the effect of secondary heat dissipation.

Description of drawings

Fig. 1 is a schematic diagram of a wide-temperature LVDS liquid crystal screen with high-efficiency heat dissipation proposed by the utility model;

Fig. 2 is a perspective view of the rear cover structure of a wide-temperature LVDS liquid crystal screen with high-efficiency heat dissipation proposed by the utility model;

Fig. 3 is a perspective view of the air inlet structure of a wide-temperature LVDS LCD screen with high-efficiency heat dissipation proposed by the utility model;

Fig. 4 is a perspective view of the fan structure of a wide-temperature LVDS LCD screen with high-efficiency heat dissipation proposed by the utility model;

Fig. 5 is a three-dimensional view of the support plate structure of a wide-temperature LVDS liquid crystal screen with high-efficiency heat dissipation proposed by the utility model;

Fig. 6 is a three-dimensional view of the cooling fin structure of a wide-temperature LVDS liquid crystal display with high-efficiency heat dissipation proposed by the utility model;

Fig. 7 is a three-dimensional view of the aluminum alloy base structure of a wide-temperature LVDS liquid crystal display with high-efficiency heat dissipation proposed by the utility model.

Explanation of reference signs: 1. Back cover; 2. Shell; 3. LCD screen; 4. Main board; 5. Air inlet; 6. Aluminum alloy base; 61. Heat pipe; 62. Radiating fins; 64, gray screen; 7, fan; 71, support plate; 72, movable plate; 73, upper hook; 74, lower hook; 75, installation slot; 76, cooling hole; 8, air vent.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-7.

Referring to Figure 1-7, a wide-temperature LVDS liquid crystal display with high-efficiency heat dissipation includes a rear cover 1, a housing 2, and an LCD screen 3 and a main board 4 installed in the housing 2, and the rear cover 1 is fixed and installed by fastening bolts On one side surface of the casing 2, an air inlet 5 is opened on one side surface of the back cover 1, and a heat dissipation device is provided on the inner wall of the casing 2. The heat dissipation device includes an aluminum alloy base 6, and the side surface of the aluminum alloy base 6 is connected to the The surface of one side of the 4 is bonded, and the aluminum alloy base 6 can transfer the heat generated by the main board 4 in time due to the good heat transfer performance of the aluminum alloy.

The heat dissipation device also includes a heat pipe 61, one end of the heat pipe 61 is fixedly connected to the other side surface of the aluminum alloy base 6, and a plurality of cooling fins 62 are evenly distributed on the outer surface of the heat pipe 61, and one end connected to the aluminum alloy base 6 through the heat pipe 61 The heat absorbed by the aluminum alloy base 6 is transferred to the other end of the heat pipe 61 along the heat pipe 61 , making full use of the principle of heat conduction and the rapid heat transfer property of the cooling medium, and the heat generated by the main board is quickly transferred out through the heat pipe 61 .

One side surface of the rear cover 1 is provided with a heat dissipation port 63, the other end of the heat pipe 61 and one side of the heat dissipation fin 62 extend to the inner wall of the heat dissipation port 63, and the outer surface of the heat dissipation port 63 is fixed with a dust screen by fastening bolts 64, the heat transferred through the heat pipe 61 is conducted to the heat dissipation fins 62, the distribution of a plurality of heat dissipation fins 62 increases the heat dissipation area, and the heat dissipation fins 62 transfer the heat to the outside through the heat dissipation openings 63, and the dust blocking net 64 prevents .

By setting the heat dissipation device, it is convenient to focus on heat dissipation of the main heating unit of the chip on the main board 4, so as to conduct heat more efficiently, and then achieve the purpose of cooling down. The heat generated by the main board 4 during operation is transferred to the heat pipe 61 through the aluminum alloy base 6 The heat is transported along the heat pipe 61 to the other end of the heat pipe 61, and the contact with the heat dissipation fin 62 will be conducted to the heat dissipation fin 62, and the heat dissipation fin 62 will transfer the heat to the outside of the rear cover 1 through the heat dissipation port 63 to achieve cooling effect.

The outer surface of the back cover 1 is provided with a disassembly mechanism, the disassembly mechanism includes a fan 7, and the air outlet end of the fan 7 is horizontally aligned with the outer surface of the air inlet 5.

The dismounting mechanism also includes a support plate 71, the inner wall of the support plate 71 is slidingly engaged with a movable plate 72, one end of the movable plate 72 extends to the upper surface of the support plate 71 and is fixedly connected with an upper hook 73, and one side of the support plate 71 The lower end is fixedly connected with two lower hooks 74. The material of the support plate 71 is titanium alloy, which is light in weight and easy to install. At the same time, it has good toughness and corrosion resistance, and can effectively protect the fan 7. The lower hook 74 locks the lower surface of the housing 2, and then pulls the movable plate 72 to make the upper hook 73 and the upper surface of the housing 2 locked, so that the fan 7 is installed behind the rear cover 1, and the fan 7 is convenient to start. Wind is sent into the casing 2 through the air inlet 5 .

The outer surface of the support plate 71 is penetrated with a mounting groove 75, the outer surface of the fan 7 is installed on the inner wall of the mounting groove 75, and a plurality of cooling holes 76 are respectively opened on both sides of the supporting plate 71, and one end of the cooling hole 76 is connected to the mounting groove 75. The inner wall of the fan 7 is connected to each other, and the cooling hole 76 guides the heat generated by the operation of the fan 7, so as to prevent the surface where the fan 7 contacts with the installation groove 75 from being unable to dissipate heat, thereby affecting the normal use of the fan 7.

One side surface of the back cover 1 is provided with a vent 8, and the inner wall of the air inlet 5 is provided with a filter screen, and the wind entering through the air inlet 5 is filtered by the filter screen to dissipate heat and cool down the main board 4 in the housing 2, and then dissipate the heat. Out through vent 8.

By setting the dismounting mechanism, it is convenient to disassemble and assemble the fan 7, so as to prevent the fan 7 from occupying a large amount of space in daily use, and when it is necessary to dissipate heat from the liquid crystal screen 3 in long-term use, the fan 7 is installed on the back cover 1, and it can be removed when not in use. Disassembly, easy to carry at the same time, according to the shape of the housing 2, first let the two lower hooks 74 clamp the lower surface of the housing 2, and then pull the movable plate 72 so that the upper hook 73 and the upper surface of the housing 2 are clamped , so that after the fan 7 is installed on the rear cover 1, the fan 7 is started to send the wind into the housing 2 through the air inlet 5, and the heat is transmitted through the vent 8 to achieve the effect of secondary heat dissipation.

Working principle: During the use of the LCD screen 3, the heat generated by the main board 4 is transferred to the heat pipe 61 through the aluminum alloy base 6, and the heat is transported to the other end of the heat pipe 61 along the heat pipe 61, and the contact with the heat dissipation fin 62 will Conducted to the cooling fins 62, and the cooling fins 62 transfer the heat to the outside of the rear cover 1 through the cooling holes 63;

When the liquid crystal screen 3 is used for a long time, according to the shape of the housing 2, first let the two lower hooks 74 clamp the lower surface of the housing 2, and then pull the movable plate 72 to make the upper hook 73 and the upper surface of the housing 2 Fasten it so that the fan 7 is installed on the back cover 1, start the fan 7, the fan 7 sends the wind into the housing 2 through the air inlet 5, the filter screen at the air inlet 5 filters the wind, and the heat dissipation on the support plate 71 The holes 76 dissipate heat from the fan 7 , and the wind entering through the air inlet 5 dissipates heat and cools down the main board 4 in the casing 2 , and then transmits the heat through the vent 8 .

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (6)

1. The utility model provides a wide temperature LVDS LCD screen with high-efficient heat dissipation, includes back lid (1), casing (2) and install in LCD screen (3) and mainboard (4) in casing (2), its characterized in that: the rear cover (1) is fixedly arranged on one side surface of the shell (2) through a fastening bolt, an air inlet (5) is formed in one side surface of the rear cover (1), a heat radiating device is arranged on the inner wall of the shell (2), the heat radiating device comprises an aluminum alloy base (6), and one side surface of the aluminum alloy base (6) is attached to one side surface of the main board (4);

the outer surface of back lid (1) is provided with dismouting mechanism, dismouting mechanism includes fan (7), the air-out end of fan (7) with the surface level of air intake (5) aligns.

2. The wide-temperature LVDS liquid crystal display with efficient heat dissipation according to claim 1, wherein: the heat dissipation device further comprises a heat pipe (61), one end of the heat pipe (61) is fixedly connected with the surface of the other side of the aluminum alloy base (6), and a plurality of heat dissipation fins (62) are uniformly distributed on the outer surface of the heat pipe (61).

3. The wide-temperature LVDS liquid crystal display with efficient heat dissipation according to claim 2, wherein: a heat radiation opening (63) is formed in one side surface of the rear cover (1), the other end of the heat pipe (61) and one side of the heat radiation fin (62) extend to the inner wall of the heat radiation opening (63), and an ash blocking net (64) is fixedly arranged on the outer surface of the heat radiation opening (63) through a fastening bolt.

4. The wide-temperature LVDS liquid crystal display with efficient heat dissipation according to claim 1, wherein: the dismounting mechanism further comprises a supporting plate (71), the inner wall of the supporting plate (71) is slidably clamped with a movable plate (72), one end of the movable plate (72) extends to the upper surface of the supporting plate (71) and is fixedly connected with an upper clamping hook (73), and one side lower end of the supporting plate (71) is fixedly connected with two lower clamping hooks (74).

5. The wide-temperature LVDS liquid crystal display with efficient heat dissipation according to claim 4, wherein: the outer surface of backup pad (71) runs through and has seted up mounting groove (75), the outer surface mounting of fan (7) is in the inner wall of mounting groove (75), a plurality of louvres (76) have been seted up respectively to the both sides of backup pad (71), the one end of louvre (76) with the inner wall intercommunication of mounting groove (75).

6. The wide-temperature LVDS liquid crystal display with efficient heat dissipation according to claim 1, wherein: a ventilation opening (8) is formed in the surface of one side of the rear cover (1), and a filter screen is arranged on the inner wall of the air inlet (5).

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