Outdoor high-brightness smart screen heat dissipation structure

Abstract

The utility model relates to the technical field of whole machine manufacturing of display equipment, in particular to a heat dissipation structure of an outdoor high-brightness intelligent screen. The heat dissipation structure comprises a screen and a rear shell, a cavity is formed between the screen and the rear shell, and the heat dissipation structure is characterized by further comprising a heat conduction metal plate installed in the cavity and an air suction device installed on the rear shell; one end of the heat-conducting metal plate is connected with the screen through the heat-conducting flexible connection layer; and an air outlet of the air suction device is communicated with the cavity. According to the heat dissipation structure, the body temperature of the outdoor high-brightness smart screen during working can be greatly reduced, and targeted heat dissipation can be carried out on key heating parts; the intelligent screen can continuously work without faults in an outdoor high-brightness environment, and the service life of equipment is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of the whole machine manufacturing of display devices, and particularly relates to a heat dissipation structure for an outdoor high-brightness intelligent screen. Background Technique

[0002] An intelligent screen is an intelligent TV product integrating functions such as intelligent technology, high-definition display, audio optimization, and Internet of Things control. It can not only provide a high-quality audio-visual experience, but also serve as a control center for smart homes and outdoor displays.

[0003] With the spread of the high-tech and convenient life trend, more and more intelligent screen products are installed in many outdoor civic activity centers or outdoor public service advertisement display areas. Their rich content display and interactivity have greatly improved the happiness index of residents. The intensity of outdoor natural light changes with the change of the sun's height during the day, which is completely different from the light intensity stability of indoor artificial light sources. Therefore, outdoor intelligent screens need to consider the viewing experience of viewers during periods with strong light such as noon and afternoon in a day. Compared with indoor products, they need to provide higher display brightness. For light-emitting screens made of materials such as LEDs, the significant increase in screen power consumption brought about by increasing the screen brightness will cause the heat generation of the screen to increase significantly first. In addition, compared with ordinary TV screens, outdoor intelligent screens often have additional heat-generating devices such as dazzling light bars and Internet of Things controllers, and intelligent screens are often in a continuous working state. Therefore, long-term heat accumulation and uneven distribution of heat-generating parts will lead to aging of screen materials or even screen damage, resulting in losses of public property. Content of the Utility Model

[0004] The purpose of the utility model is to provide a heat dissipation structure for an outdoor high-brightness intelligent screen, which can greatly reduce the body temperature of the outdoor high-brightness intelligent screen during operation, and can also dissipate heat targeted at key heat-generating parts; enabling the intelligent screen to continuously work without failure in an outdoor high-brightness environment, and greatly improving the service life of the device.

[0005] In order to achieve the above purpose, the specific technical solution adopted by the utility model is as follows:

[0006] A heat dissipation structure for an outdoor high-brightness intelligent screen, comprising a screen and a rear case. A cavity is formed between the screen and the rear case. It is characterized in that this heat dissipation structure further comprises a heat-conducting sheet metal installed in the cavity and a suction device installed on the rear case; one end of the heat-conducting sheet metal is connected to the screen through a heat-conducting soft connection layer, and the other end is connected to the rear case; the air outlet of the suction device is communicated with the cavity.

[0007] Thus, the rear case is installed on the back of the screen to provide support and protection, and a cavity for accommodating other hardware devices is formed between them. Since additional heat-generating components such as dazzling light bars are provided on the front of the screen, a heat-conducting sheet metal needs to be provided on the back of the screen corresponding to this location. One end of the heat-conducting sheet metal is fixed to the inner side of the rear case, and the fixing method can be bolts, glue bonding, snap-in connection, etc. The other end is attached to the back of the screen, and a heat-conducting soft connection layer is provided at the attachment location. The heat-conducting soft connection layer has heat conductivity and can be set in the form of a double layer of graphene patch plus heat-conducting silicone. The key heat-generating part transfers heat directly to the heat-conducting sheet metal through contact conduction. The heat-conducting sheet metal is made of a metal material with high heat conductivity, which can transfer heat directly to the rear case. The rear case is made of a metal material or other materials with high heat conductivity and can quickly dissipate heat.

[0008] In view of the limited heat dissipation capacity of the simple contact heat conduction and dissipation method, a suction device is specifically provided. The suction device is a positive-pressure suction component, which is used to suck outdoor air into the cavity formed by the rear case and the screen, so that the cooling air can continuously take away the heat dissipated by the screen. The air outlet of the suction device is communicated with the cavity, and is used to directly pour the outdoor cooling air into the cavity to achieve the predetermined heat dissipation effect.

[0009] In summary, the heat dissipation structure of this outdoor high-brightness intelligent screen solves the problem of targeted heat dissipation for key heat-generating parts through the direct heat conduction between the heat-conducting sheet metal and the screen and the efficiency improvement of a specific heat-conducting soft connection layer, and cooperates with the air-cooling heat dissipation effect of the suction device. It also reduces the body temperature of the outdoor high-brightness intelligent screen during operation as a whole, enabling the intelligent screen using the heat dissipation structure of the present invention to continuously work without failure in an outdoor high-brightness environment, and greatly improving the service life of the device.

[0010] As a preference of the present invention, the suction device includes a frame body, two fan bodies installed on the frame body, a wind duct frame for guiding air, and a housing connected to the frame body; the air inlet of the wind duct frame is connected to one of the fan bodies, and the air outlet of the wind duct frame is arranged in the cavity.

[0011] The frame body is the installation and fixing bracket of the fan body. The housing is buckled and fixed to the frame body to protect the frame body and cooperate with the rear case to form a large air passage to ensure that the cooling air sucked by the fan body enters the cavity. The fan body is the actual air guiding component. In this embodiment, two fan bodies are provided. One of the fan bodies is not connected to the wind duct frame, and the introduced cooling air enters the cavity through the rear case and the housing to take away the heat in the entire cavity; the other fan body is connected to the wind duct frame, and the air inlet of the wind duct frame is buckled on the entire fan surface of this fan body, so that all the entering cooling air can enter the wind duct frame. The air outlet of the wind duct frame is arranged in the cavity, so that the cooling air passing through this wind duct frame is directed into a certain position in the cavity to focus on cooling this position.

[0012] Preferably, the frame is perpendicularly connected to the rear case.

[0013] Fixing the frame perpendicular to the rear case can make the air suction path of the fan body installed on the frame perpendicular to the rear case and the screen, which can increase the air intake volume and avoid the situation where the air intake is restricted due to the fan body being too close to the wall when the outdoor high-brightness intelligent screen is installed against the wall.

[0014] Preferably, the heat-conducting sheet metal is arranged at the air outlet of the air duct frame.

[0015] Since the place where the heat-conducting sheet metal is arranged is the key heat-generating part, fixing the heat-conducting sheet metal at the air outlet of the air duct frame can make the air duct frame direct the cooling air sucked by the fan body connected to it to converge at the heat-conducting sheet metal, and then directly take away the heat absorbed by the heat-conducting sheet metal through the action of air-cooling heat dissipation, improving the heat dissipation effect of the heat-conducting sheet metal on the key heat-generating part of the screen.

[0016] Preferably, the air duct frame includes a wind guiding plate for directing and converging the cooling air, and the wind guiding plate is inclined.

[0017] The inclined wind guiding plate makes the cross-sectional area of the air duct frame gradually decrease along the air intake direction. According to the physical theorem, when the air suction power of the fan body remains unchanged, the wind speed of the cooling air gradually increases when passing through the air duct frame to improve the heat dissipation effect.

[0018] Preferably, the cross-sectional area of the air outlet of the air duct frame gradually decreases along the air intake direction.

[0019] The cross-sectional area of the air outlet of the air duct frame gradually decreases along the air intake direction, which can further increase the wind speed of the cooling air and further improve the heat dissipation effect.

[0020] Preferably, the heat-conducting soft connection layer includes a graphene patch attached to the heat-conducting sheet metal and a heat-conducting silica gel arranged between the graphene patch and the screen.

[0021] Since the graphene patch has ultra-high thermal conductivity, it can efficiently conduct the heat of the key heat-generating part of the screen to the heat-conducting sheet metal; the heat-conducting silica gel is arranged between the graphene patch and the screen to further improve the thermal conductivity of this part, and is soft-connected to the screen rather than rigidly connected, which can prevent the situation of cracking of both due to bad vibration.

[0022] Preferably, an insect-proof net for preventing mosquitoes from entering is installed on the fan body.

[0023] Since this high-brightness intelligent screen is set outdoors, it needs to face the invasion of mosquitoes and small animals. And due to the heat-loving and light-loving characteristics of mosquitoes and small animals, it is very necessary to install an insect-proof net on the fan body.

[0024] Preferably, a ventilation opening for the cooling air to blow out is provided on the rear case, and an insect-proof net for preventing mosquitoes from entering is provided on the ventilation opening.

[0025] The ventilation opening is arranged on the rear case, which can cooperate with the air suction device to form a circulation path for the cooling air, ensuring the smooth flow of the cooling air in the entire cavity. An insect-proof net for preventing mosquitoes from entering is also provided thereon.

[0026] In summary, the utility model has the following beneficial effects:

[0027] 1. The outdoor high-brightness intelligent screen heat dissipation structure solves the problem of targeted heat dissipation for key heat-generating parts through the direct heat conduction between the heat-conducting sheet metal and the screen and the efficiency improvement of the specific heat-conducting soft connection layer, and cooperates with the air-cooling heat dissipation effect of the air suction device. It also reduces the body temperature of the outdoor high-brightness intelligent screen during operation as a whole, enabling the intelligent screen using the heat dissipation structure of the present invention to continuously work without failure in the outdoor high-brightness environment, greatly improving the service life of the device.

[0028] 2. The heat-conducting sheet metal is arranged at the air outlet of the air duct frame, so that the cooling air passing through the air duct frame is directed to the position where the heat-conducting sheet metal is located, and the heat-conducting sheet metal can be cooled preferentially.

[0029] 3. The inclined air guide plate makes the cross-sectional area of the air duct frame gradually decrease along the air inlet direction. According to the physical theorem, when the air suction power of the fan body remains unchanged, the wind speed of the cooling air passing through the air duct frame gradually increases to improve the heat dissipation effect. Description of the Drawings

[0030] Figure 1 is the overall schematic diagram of the outdoor high-brightness intelligent screen;

[0031] Figure 2 is the schematic diagram of the internal structure of the outdoor high-brightness intelligent screen;

[0032] Figure 3 is the schematic diagram of the air suction device.

[0033] In the figure: screen 1, rear case 2, heat-conducting sheet metal 3, air suction device 4, frame body 41, fan body 42, air duct frame 43, outer shell 44, heat-conducting soft connection layer 5. Detailed Embodiment

[0034] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Anyone can implement the present disclosure in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0035] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the components are connected to each other and the relative positional relationship after connection remains unchanged. It should be understood that when component A is fixedly connected to component C through component B, a change in the relative positional relationship due to the deformation of component A, component B, and component C itself is allowed. "Rotational connection" means that the components are connected to each other and can rotate relative to each other after connection. "Sliding connection" means that the components are connected to each other and can slide relative to each other after connection. Among them, the integration of two components through an integrated molding process means that during the process of forming one of the two components, the component is connected to the other component together, and there is no need to connect the two components through additional processing (such as bonding, welding, snap connection, screw connection) methods.

[0036] As Figure 1 shown, the rear shell 2 is installed on the back of the screen 1 to provide support and protection. A cavity for accommodating other hardware devices is formed between them. Since heat-generating components such as additional dazzling light bars are provided on the front of the screen 1, a heat-conducting sheet metal 3 needs to be provided on the back of the screen 1 corresponding to this location.

[0037] As Figure 2 and Figure 3 shown, the heat-conducting sheet metal 3 is a U-shaped metal component. Its bottom is fixedly connected to the rear shell 2 through connection methods such as bolts, colloidal adhesion, or snaps. The top is attached to the back of the screen 1 through a heat-conducting soft connection layer 5. The heat-conducting soft connection layer 5 has heat conductivity and can be set in the form of a double layer of graphene patch plus heat-conducting silicone. The graphene patch is directly attached and connected to the heat-conducting sheet metal 3, and the heat-conducting silicone is arranged between the graphene patch and the screen 1.

[0038] In view of the limited heat dissipation capacity of the simple contact heat conduction and dissipation method, an air suction device 4 is specifically provided. The air suction device 4 is a positive-pressure air suction component, which is used to suck outdoor air into the cavity formed by the rear shell 2 and the screen 1, so that the cooling air can continuously take away the heat dissipated by the screen 1.

[0039] In this embodiment, the air suction device 4 includes a frame body 41, two fan bodies 42 installed on the frame body 41, an air duct frame 43 for guiding air, and a housing 44 connected to the frame body 41; the air inlet of the air duct frame 43 is connected to one of the fan bodies 42, and the air outlet of the air duct frame 43 is arranged in the cavity. Among them, the frame body 41 is vertically connected to the rear shell 2.

[0040] The frame body 41 is the installation and fixing bracket of the fan body 42. The outer shell 44 is fastened and fixed to the frame body 41, which is used to protect the frame body 41 and cooperate with the rear shell 2 to form a large air passage to ensure that the cooling air sucked by the fan body 42 enters the cavity. The fan body 42 is the actual air guiding component. In this embodiment, two fan bodies 42 are provided. One of the fan bodies 42 is not connected to the air duct frame 43, and the introduced cooling air enters the cavity through the rear shell 2 and the outer shell 44 to take away the heat in the entire cavity; the other fan body 42 is connected to the air duct frame 43, and the air inlet of the air duct frame 43 is fastened to the entire fan surface of this fan body 42, so that all the entering cooling air can enter the air duct frame 43. The air outlet of the air duct frame 43 is arranged in the cavity, and the heat conducting metal sheet 3 is arranged at the air outlet of the air duct frame 43. The air duct frame 43 includes a wind guiding plate for directionally converging the cooling air, and the wind guiding plate is inclined. The inclined wind guiding plate makes the cross-sectional area of the air duct frame 43 gradually decrease along the air inlet direction, and the cross-sectional area of the air outlet of the air duct frame 43 gradually decreases along the air inlet direction. This design method can increase the cooling air speed and further improve the heat dissipation effect.

[0041] The rear shell 2 is provided with an air outlet for blowing out the cooling air, which can cooperate with the air suction device 4 to form a circulation path of the cooling air.

[0042] Insect-proof nets for preventing mosquitoes from entering are installed on both the fan body 42 and the air outlet, which can avoid the invasion of mosquitoes and small animals.

[0043] The above description is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should be covered within the protection scope of the present application; without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. The structural member materials, dimensions, shapes, etc. mentioned in the embodiments of the present application are all schematic descriptions and do not form strict limitations or absolute limitations. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An outdoor high-brightness intelligent screen heat dissipation structure, comprising a screen (1) and a rear case (2), a cavity is formed between the screen (1) and the rear case (2), and it is characterized in that, The outdoor high-brightness intelligent screen heat dissipation structure further includes a heat-conducting sheet metal (3) installed in the cavity and a suction device (4) installed on the rear shell (2); one end of the heat-conducting sheet metal (3) is connected to the screen (1) through a heat-conducting soft connection layer (5), and the other end is connected to the rear shell (2); the air outlet of the suction device (4) is communicated with the cavity.

2. The heat dissipation structure of an outdoor high-brightness intelligent screen according to claim 1, wherein, The suction device (4) includes a frame body (41), two fan bodies (42) installed on the frame body (41), an air duct frame (43) for guiding air, and a housing (44) connected to the frame body (41); the air inlet of the air duct frame (43) is connected to one of the fan bodies (42), and the air outlet of the air duct frame (43) is arranged in the cavity.

3. The heat dissipation structure of an outdoor high-brightness intelligent screen according to claim 2, wherein, The frame body (41) is vertically connected to the rear shell (2).

4. The heat dissipation structure of an outdoor high-brightness intelligent screen according to claim 2, characterized in that, The heat-conducting sheet metal (3) is arranged at the air outlet of the air duct frame (43).

5. The heat dissipation structure of an outdoor high-brightness intelligent screen according to claim 4, characterized in that The air duct frame (43) includes a wind guide plate for directionally converging cooling air, and the wind guide plate is inclined.

6. The heat dissipation structure of an outdoor high-brightness intelligent screen according to claim 5, characterized in that, The cross-sectional area of the air outlet of the air duct frame (43) gradually decreases along the air inlet direction.

7. The heat dissipation structure of an outdoor high-brightness intelligent screen according to claim 1, characterized in that The heat-conducting soft connection layer (5) includes a graphene patch attached to the heat-conducting sheet metal (3) and heat-conducting silica gel arranged between the graphene patch and the screen (1).

8. The heat dissipation structure of an outdoor high-brightness intelligent screen according to claim 2, characterized in that, An insect-proof net for preventing mosquitoes from entering is installed on the fan body (42).

9. An outdoor high-brightness intelligent screen heat dissipation structure according to any one of claims 1-8, characterized in that, An air outlet for the cooling air to blow out is arranged on the rear shell (2), and an insect-proof net for preventing mosquitoes from entering is arranged on the air outlet.

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