Digital intelligent display screen

Abstract

The utility model discloses a digital intelligent display screen, which relates to the display technical field, the digital intelligent display screen comprises a housing and a heat dissipation assembly, the housing is provided with a liquid crystal screen assembly, the housing and the liquid crystal screen assembly are enclosed to form an accommodating cavity, the side wall of the housing is provided with a plurality of first through holes communicated with the accommodating cavity in a penetrating manner, and the first through holes are communicated with the accommodating cavity. Each first through hole is provided with a water retaining part at the edge of the upper end of the shell, so that the opening of the through hole faces downwards. The heat dissipation assembly comprises a fan and a first waterproof part which are arranged in the containing cavity, the first waterproof part is arranged between the fan and the inner wall of the shell, the fan comprises fan blades, and the rotating axis of the fan blades inclines downwards and faces the multiple first through holes; air flow outside the shell obliquely and upwards enters the shell from the first through hole, rainwater is prevented from being directly sucked into the shell, and parts are prevented from being short-circuited or corroded due to water inflow.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technology field especially relates to a digital display screen. BACKGROUND

[0002] With the rapid development of wisdom city construction and outdoor digital media, outdoor large display screen is widely used in advertising media, sports stadium, traffic information release and other scenes. Such display screen usually adopts high brightness LED module as the core light emitting element, and a large amount of heat will be generated when it works, especially under the working condition of high temperature or long time operation, the rapid accumulation of heat will cause the internal temperature of the display screen to rise sharply, causing LED light decay, color distortion and even drive circuit damage and other problems.

[0003] In order to protect the display performance and the service life of equipment, the prior art generally adopts forced air cooling heat dissipation scheme, that is, installing a cooling fan in the display screen shell, and forming air convection by opening a vent channel on the surface of the shell. However, the variability and complexity of outdoor environment (such as rain, snow, humidity, dust, etc.) make the shell opening become a potential water inlet channel. Although dust screen or water retaining structure is used for protection in some schemes, it is still difficult to completely avoid rainwater penetration or condensate accumulation, thereby causing internal electronic components short circuit, metal parts corrosion and other faults. SUMMARY

[0004] The main purpose of the utility model is to provide a digital display screen, which solves the problem that the existing display screen is easy to enter water at the fan opening.

[0005] To achieve the above purpose, the digital display screen provided by the utility model comprises:

[0006] A shell is provided with a liquid crystal screen assembly, the liquid crystal screen assembly and the shell form a containing cavity, a plurality of first through holes are arranged on the side wall of the shell and communicated with the containing cavity, and a water retaining part is arranged at the upper end edge of each first through hole outside the shell to make the opening of the first through hole downward.

[0007] A heat dissipation assembly is arranged in the containing cavity and comprises a fan and a first waterproof part, the first waterproof part is arranged between the fan and the inner wall of the shell, the first waterproof part has a first air port, a second air port and a wind passage communicated with the first air port and the second air port, the first air port is communicated with a plurality of first through holes, the fan comprises a fan blade, the fan blade is arranged at the second air port, and the rotation axis of the fan blade is inclined downward and arranged towards a plurality of first through holes.

[0008] In an embodiment, the heat dissipation assembly further comprises a fixing member, the fan is connected to the shell through the fixing member, the fan is arranged on a side of the fixing member away from the through hole, and the first waterproof member is arranged on a side of the fixing member close to the first through hole.

[0009] In an embodiment, a guide surface is arranged below the side of the fixing member close to the first through hole, the guide surface is inclined downward from the fan to the direction close to the inner wall of the shell, and the first waterproof member is arranged along the guide surface at least partially.

[0010] In an embodiment, the smart display screen comprises at least two heat dissipation assemblies, the two heat dissipation assemblies are arranged on the same inner wall of the shell in the height direction and are spaced apart, the fan of one of the heat dissipation assemblies is used to draw air into the shell, and the fan of the other heat dissipation assembly is used to blow air out of the shell.

[0011] In an embodiment, the smart display screen further comprises an audio assembly, the audio assembly comprises at least one loudspeaker arranged in the accommodating cavity, a plurality of second through holes are further arranged on the side wall of the shell, the loudspeaker is arranged towards the plurality of second through holes, and the water blocking part is arranged on the upper end edge of each second through hole.

[0012] In an embodiment, the audio assembly further comprises an annular second waterproof member, the second waterproof member is arranged between the loudspeaker and the inner wall of the shell and surrounds the plurality of second through holes.

[0013] In an embodiment, the audio assembly further comprises a connecting member and a limiting member, the loudspeaker is connected to the shell through the connecting member and is arranged on a side of the connecting member away from the second through hole, the limiting member is arranged on a side of the connecting member close to the second through hole, and the second waterproof member is arranged on the limiting member.

[0014] In an embodiment, the heat dissipation assembly and the audio assembly are arranged on the same side wall in the shell and are arranged in the height direction of the smart display screen.

[0015] In an embodiment, the shell comprises a frame body and two mounting frames, the two mounting frames are arranged on opposite sides of the frame body and surround the frame body to form the accommodating cavity, and the liquid crystal screen assembly is arranged on the two mounting frames.

[0016] Alternatively, the shell comprises a frame body, one mounting frame and one cover plate, the mounting frame and the cover plate are arranged on opposite sides of the frame body and surround the frame body to form the accommodating cavity, and the liquid crystal screen assembly is arranged on the mounting frame.

[0017] In one embodiment, the mounting frame and / or the cover plate are rotatably disposed on the frame body to open or close the receiving cavity.

[0018] The technical solution of this utility model is to set the opening of the through hole on the side wall of the housing of the intelligent display screen downward, and to tilt the fan downward and align it with the through hole to prevent water from entering the housing. Specifically, the intelligent display screen includes a housing and a heat dissipation component. A liquid crystal screen component is provided on the housing. The housing and the liquid crystal screen component form a cavity. Multiple first through holes communicating with the cavity are provided through the side wall of the housing. Each first through hole is provided with a water-blocking part at the upper edge of the housing so that the opening of the through hole is set downward.

[0019] The heat dissipation assembly includes a fan and a first waterproof component disposed within the accommodating cavity. The first waterproof component is disposed between the fan and the inner wall of the housing. The first waterproof component has a first air vent, a second air vent, and an air passage connecting the first air vent and the second air vent. The first air vent is connected to multiple first through holes. The fan includes fan blades disposed at the second air vent, and the rotation axis of the fan blades is inclined downward and oriented towards the multiple first through holes. When the fan operates and draws air into the housing, the airflow outside the housing enters the housing inclined upward through the first through holes, preventing rainwater from being directly sucked into the housing and preventing water from entering the components, causing short circuits, or causing corrosion. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of an embodiment of the digital intelligent display screen provided by this utility model;

[0022] Figure 2 A schematic diagram of another embodiment of the digital display screen provided by this utility model;

[0023] Figure 3 A schematic diagram of the main frame structure in one embodiment of the digital display screen provided by this utility model;

[0024] Figure 4 A schematic diagram of the assembly structure of the frame body, heat dissipation component, and audio component in one embodiment of the digital display screen provided by this utility model;

[0025] Figure 5 for Figure 3 A cross-sectional view along the AA direction;

[0026] Figure 6 For Figure 5 An enlarged view of the position indicated by the arrow B in the middle;

[0027] Figure 7 An exploded view of the heat dissipation assembly in an embodiment of the digital display screen provided by the utility model;

[0028] Figure 8 For Figure 5 An enlarged view of the position indicated by the arrow C in the middle;

[0029] Figure 9 An exploded view of the audio assembly in an embodiment of the digital display screen provided by the utility model;

[0030] Figure 10 A structural schematic view of still another embodiment of the digital display screen provided by the utility model.

[0031] Explanation of reference numerals:

[0032] 100, digital display screen; 110, shell; 110a, accommodating cavity; 110b, first through hole; 110c, second through hole; 111, water retaining part; 112, frame main body; 113, mounting frame; 114, cover plate; 120, liquid crystal screen assembly; 130, heat dissipation assembly; 131, fan; 132, first waterproof part; 132a, first air inlet; 132b, second air inlet; 132c, air passage; 133, fixing part; 1331, guide surface; 140, audio assembly; 141, loudspeaker; 142, second waterproof part; 143, connecting part; 144, limiting part.

[0033] The implementation, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0036] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0037] The utility model provides a number of wisdom display screen 100.

[0038] Please refer to Figures 1 to 3 In an embodiment of the utility model, the number of wisdom display screen 100 includes shell 110 and heat dissipation assembly 130, wherein "number of wisdom" indicates that the display is digital intelligent product, and the liquid crystal screen assembly 120 is arranged on the front surface and / or rear surface of the opposite two sides on the shell 110, and the shell 110 and the liquid crystal screen assembly 120 form the containing cavity 110a, as Figure 2 And Figure 5 The number of wisdom display screen 100 is usually installed vertically, that is, the long side of the shell 110 is installed along the vertical direction, and a plurality of first through holes 110b communicated with the containing cavity 110a are arranged on the side wall of the shell 110 in the height direction, further referring to Figure 6 And Figure 8 Each first through hole 110b is provided with a water retaining part 111 at the outer upper end edge of the shell 110, and the water retaining part 111 is inclined downward to make the opening of the through hole downward.

[0039] Because the liquid crystal screen assembly 120 can generate a large amount of heat, the heat dissipation assembly 130 is arranged in the containing cavity 110a to dissipate heat, and the heat dissipation assembly 130 includes a fan 131 and a first waterproof part 132, and the first waterproof part 132 is arranged between the fan 131 and the inner wall of the shell 110, in combination with Figure 6 And Figure 7The first waterproof member 132 has a first air outlet 132a, a second air outlet 132b and a wind passage 132c connecting the first air outlet 132a and the second air outlet 132b, the first air outlet 132a is communicated with the plurality of first through holes 110b, the fan 131 comprises a fan blade arranged at the second air outlet 132b, and the rotating axis of the fan blade is inclined downward and arranged towards the plurality of first through holes 110b. When the fan 131 works and draws air into the shell 110, the airflow outside the shell 110 is inclined upward into the shell 110 from the first through hole 110b, so that the rainwater is prevented from being directly sucked into the shell 110, and the short circuit or corrosion of the parts caused by water is prevented.

[0040] It should be noted that, in addition to preventing rainwater from being sucked in, the fan 131 inclined downward can also prevent the external airflow from being blown back into the shell 110. The fan 131 can be arranged to draw air into the shell 110 or blow air out of the shell 110, and the number of the fan 131 can be single or multiple. When a single fan 131 is arranged, an additional air inlet or air outlet is needed to be arranged on the shell 110 to facilitate the airflow. When multiple fans 131 are arranged, a plurality of first through holes 110b can be arranged on the side wall of the shell 110 corresponding to each fan 131, and part of the fans 131 are arranged to draw air into the shell 110, and the other part of the fans 131 are arranged to blow air out of the shell 110 to form a reasonable air duct structure and quickly take away the heat inside the display screen. Therefore, the number and mounting structure of the fan 131 are not limited here.

[0041] In an embodiment, the heat dissipation assembly 130 further comprises a fixing member 133, the fan 131 is connected with the shell 110 through the fixing member 133, the fan 131 is arranged on the side of the fixing member 133 away from the through hole, and the first waterproof member 132 is arranged on the side of the fixing member 133 close to the first through hole 110b.

[0042] As shown in Figures 4 to 7 In an embodiment of the utility model, the heat dissipation assembly 130 further comprises a fixing member 133, specifically, the fixing member 133 is arranged on the inner wall of the shell 110, the side of the fixing member 133 away from the inner wall of the shell 110 is provided with an inclined mounting surface, the fan 131 is arranged on the mounting surface so that the rotating axis of the fan blade is inclined downward, the first waterproof member 132 is arranged on the side wall of the fixing member 133 close to the first through hole 110b, the first waterproof member 132 is made of rubber and is wrapped around the side wall of the fixing member 133 to form the wind passage 132c, and the edge of the first waterproof member 132 away from the fan 131 abuts against the inner wall of the shell 110 to prevent water from seeping into the inside from the gap between the fan 131 and the inner wall of the shell 110.

[0043] Further, as shown in Figure 6As shown, the plurality of first through holes 110b are arranged in the height direction on the side wall of the shell 110, the uppermost first through hole 110b is lower than the upper edge of the first air port 132a, and the lowermost first through hole 110b is higher than the lower edge of the first air port 132a, so that the plurality of first through holes 110b only communicate with the air passage 132c, preventing water from flowing back into the accommodation cavity 110a from the first through hole 110b.

[0044] In an embodiment, the fixing member 133 is provided with a guide surface 1331 below the side close to the first through hole 110b, the guide surface 1331 is inclined downward from the fan 131 to the direction close to the inner wall of the shell 110, and the first waterproof member 132 is at least partially arranged along the guide surface 1331.

[0045] As shown in Figure 6 and Figure 7 In an embodiment of the utility model, the fixing member 133 is in flared structure from the fan 131 to the inner wall of the shell 110, the side close to the first through hole 110b of the fixing member 133 is provided with a guide surface 1331 below, the guide surface 1331 is inclined downward from the fan 131 to the direction close to the first through hole 110b, and the first waterproof member 132 is partially arranged along the guide surface 1331, when water enters the air passage 132c at the first through hole 110b, the water flows along the guide surface 1331 to the direction close to the inner wall of the shell 110 under the action of gravity, and finally flows out from the lower first through hole 110b, preventing rainwater from accumulating or seeping into the shell 110 from the position of the fan 131.

[0046] In an embodiment, the smart display screen 100 includes at least two heat dissipation assemblies 130, the two heat dissipation assemblies 130 are arranged in the height direction on the same inner wall of the shell 110, the fan 131 of one heat dissipation assembly 130 is used to draw air into the shell 110, and the fan 131 of the other heat dissipation assembly 130 is used to blow air out of the shell 110.

[0047] In order to improve the heat dissipation efficiency of the liquid crystal screen assembly 120, as shown in Figure 4 and Figure 5As shown, in one embodiment of this utility model, the digital display screen 100 includes at least two heat dissipation components 130. Specifically, the two heat dissipation components 130 are disposed on the same side inside the housing 110 and arranged at intervals along the height direction. The two fans 131 have the same tilt direction. One fan 131 is used to draw air into the housing 110, and the other is used to blow air out of the housing 110, thereby forming a reasonable air duct structure that can quickly remove heat from the accommodating cavity 110a. Of course, in some other embodiments of this utility model, the number of heat dissipation components 130 may be three, four or more, and their arrangement position may be located on opposite sides of the housing 110 in the height direction or at the bottom of the housing 110. No specific limitation is made here.

[0048] In one embodiment, the digital display screen 100 further includes an audio component 140, which includes at least one speaker 141 disposed in the accommodating cavity 110a. The side wall of the housing 110 is also provided with a plurality of second through holes 110c. The speaker 141 is disposed toward the plurality of second through holes 110c. Each second through hole 110c has a water-blocking portion 111 at its upper edge.

[0049] like Figure 4 , Figure 8 and Figure 9 As shown, in one embodiment of this utility model, the digital display screen 100 further includes an audio component 140. Specifically, the audio component 140 includes at least one speaker 141. A plurality of second through holes 110c are provided through the side wall of the housing 110 as sound outlets, and the speaker 141 is positioned facing the plurality of second through holes 110c. Each second through hole 110c is also provided with a water-blocking part 111 at its upper edge outside the housing 110. The water-blocking part 111 extends downward at an angle so that the opening of the second through hole 110c is oriented downward. The water-blocking part 111 is used to prevent external rainwater from entering the interior of the housing 110 through the second through hole 110c and to ensure the sound output effect of the speaker.

[0050] It should be noted that the second through hole 110c and the first through hole 110b have the same structure. When the housing 110 is made of metal, the second through hole 110c and the first through hole 110b can be integrally formed by stamping. In addition, in this embodiment, three horns 141 are provided in the accommodating cavity 110a, and multiple second through holes 110c are provided on the side wall of the housing 110 corresponding to each horn 141. In some other embodiments of this utility model, the number of horns 141 is not specifically limited, and the number of second through holes 110c can be designed according to the number of horns 141.

[0051] In one embodiment, the audio assembly 140 further includes an annular second waterproof member 142, which is disposed between the speaker 141 and the inner wall of the housing 110 and surrounds a plurality of second through holes 110c.

[0052] As Figure 8 and Figure 9 shown, in an embodiment of the utility model, audio assembly 140 still includes second waterproof piece 142, second waterproof piece 142 is annular rubber ring and is located between loudspeaker 141 and the inner wall of shell 110, multiple second through holes 110c are all located in the ring shape range of second waterproof piece 142, one end edge of second waterproof piece 142 and loudspeaker 141 abut, the edge of second waterproof piece 142 away from loudspeaker 141 and the inner wall of shell 110 abut, prevent water from the gap between loudspeaker 141 and the inner wall of shell 110 into the accommodation cavity 110a, guarantee the safety of the components in digital display screen 100.

[0053] It needs to be explained that first waterproof piece 132 and second waterproof piece 142 are all made of conventional rubber material, of course, first waterproof piece 132 and second waterproof piece 142 can also be made of silicone, ethylene-propylene rubber, polyurethane, thermoplastic elastomer and other materials, to realize waterproof at first through hole 110b and second through hole 110c, can be selected according to actual demand.

[0054] In an embodiment, audio assembly 140 further comprises a connecting piece 143 and a limiting piece 144, the loudspeaker 141 is connected with the shell 110 through the connecting piece 143 and located on the side of the connecting piece 143 away from the second through hole 110c, the limiting piece 144 is arranged on the side of the connecting piece 143 close to the second through hole 110c, and the second waterproof piece 142 is arranged on the limiting piece 144.

[0055] As Figure 8 and Figure 9 shown, in an embodiment of the utility model, audio assembly 140 still includes connecting piece 143 and limiting piece 144, specifically, connecting piece 143 is long plate structure and is provided with circular aperture corresponding to multiple loudspeakers 141, connecting piece 143 is arranged in accommodation cavity 110a and is fixedly connected with shell 110, loudspeaker 141 is arranged on the side of connecting piece 143 away from second through hole 110c, limiting piece 144 is arranged on the side of connecting piece 143 close to second through hole 110c, and loudspeaker 141 is connected with connecting piece 143 through screw in turn through limiting piece 144 and connecting piece 143, to fix loudspeaker 141 on connecting piece 143, second waterproof piece 142 is embedded on limiting piece 144 and abuts with the inner wall of shell 110 for waterproof. By setting connecting piece 143 and limiting piece 144, multiple loudspeakers 141 and multiple second waterproof pieces 142 can be integrated and then loaded into accommodation cavity 110a, to simplify installation steps and installation difficulty.

[0056] In an embodiment, the heat dissipation assembly 130 and the audio assembly 140 are arranged on the same side wall in the shell 110 and are arranged in the height direction of the digital display screen 100.

[0057] In some installation scenarios, the two short sides and one long side of the housing 110 of the digital display screen 100 need to be fixed in contact with other structures, making it impossible to provide the first through hole 110b and the second through hole 110c. Figure 4 and Figure 5 As shown, in one embodiment of this utility model, the audio component 140 and the heat dissipation component 130 are disposed on the same side wall inside the housing 110 and arranged sequentially along the height direction. The three speakers 141 are spaced apart between the two fans 131 and do not occupy the top, bottom or one of the long sides, which provides convenience for structural installation.

[0058] In one embodiment, the housing 110 includes a frame body 112 and two mounting frames 113. The two mounting frames 113 are respectively disposed on opposite sides of the frame body 112 and surround the frame body 112 to form a receiving cavity 110a. The two mounting frames 113 are provided with liquid crystal screen assemblies 120.

[0059] Alternatively, the housing 110 includes a frame body 112, a mounting frame 113 and a cover plate 114. The mounting frame 113 and the cover plate 114 are respectively disposed on opposite sides of the frame body 112 and enclose the frame body 112 to form a receiving cavity 110a. The mounting frame 113 is provided with a liquid crystal screen assembly 120.

[0060] like Figure 2 As shown, in one embodiment of this utility model, the housing 110 includes a frame body 112 and two mounting frames 113. Specifically, the two mounting frames 113 are disposed on opposite sides of the housing 110 and form a front surface and a rear surface. Both mounting frames 113 can be used to mount the LCD screen assembly 120 to form a double-sided screen structure. Furthermore, since the two mounting frames 113 have the same structure, they can be manufactured using the same set of molds, which helps to reduce production costs.

[0061] Or, such as Figure 10 As shown, in another embodiment of this utility model, one mounting frame 113 is used to mount the LCD screen assembly 120, while the other mounting frame 113 is replaced by a metal cover plate 114 to form a single-screen display. It can be seen that users can freely choose and configure the mounting frame 113 and cover plate 114 on the housing 110, expanding the application scenarios of the digital display screen 100.

[0062] In one embodiment, the mounting frame 113 and / or cover plate 114 are rotatably disposed on the frame body 112 to open or close the receiving cavity 110a.

[0063] like Figure 2As shown, in an embodiment of the present application, the opposite sides of the shell 110 are respectively provided with mounting frames 113, each mounting frame 113 is connected with the frame body 112 through a hinge, so that the mounting frames 113 on both sides of the frame body 112 can be opened or closed, facilitating the user to disassemble and assemble the liquid crystal screen assembly 120.

[0064] Alternatively, when one of the mounting frames 113 is replaced by a hardware cover plate 114, the cover plate 114 can also be rotatably connected with the frame body 112 through a hinge, and the openable and closable structure of the mounting frame 113 and the cover plate 113 facilitates the user to operate in the accommodating cavity 110a, in addition to disassembling and assembling the liquid crystal display screen 120, the heat dissipation assembly 130 and the audio assembly 140 can also be disassembled and replaced for maintenance, and the convenience is further improved.

[0065] The above-mentioned is only an exemplary embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields under the technical concept of the present application, or the contents of the present application specification and drawings are included in the patent protection range of the present application.

Claims

1. A digital intelligence display screen, characterized in that, The application relates to a smart display screen. The shell is provided with a liquid crystal screen assembly, and a containing cavity is formed by the shell and the liquid crystal screen assembly; a plurality of first through holes are arranged on the side wall of the shell and communicate with the containing cavity; a water blocking part is arranged on the upper end edge of each first through hole outside the shell to make the opening of the first through hole downwardly arranged; The heat dissipation assembly comprises a fan arranged in the containing cavity and a first waterproof part arranged between the fan and the inner wall of the shell; the first waterproof part has a first air outlet, a second air outlet and a wind passing channel connecting the first air outlet and the second air outlet; the first air outlet communicates with the plurality of first through holes; the fan comprises a fan blade arranged at the second air outlet; the rotation axis of the fan blade is downwardly inclined and arranged towards the plurality of first through holes.

2. The smart display screen of claim 1, wherein, The heat dissipation assembly further comprises a fixing part; the fan is connected with the shell through the fixing part; the fan is arranged on the side of the fixing part far away from the through holes; and the first waterproof part is arranged on the side of the fixing part close to the first through holes.

3. The smart display screen of claim 2, wherein, A guide surface is arranged below the side of the fixing part close to the first through holes; the guide surface is downwardly inclined from the fan to the direction close to the inner wall of the shell; and the first waterproof part is arranged along the guide surface.

4. The smart display of claim 1, wherein, The smart display screen comprises at least two heat dissipation assemblies; the two heat dissipation assemblies are arranged in the height direction and are spaced apart on the same inner side wall of the shell; the fan of one heat dissipation assembly is used for drawing air into the shell; and the fan of the other heat dissipation assembly is used for blowing air out of the shell.

5. The smart display of claim 1, wherein, The smart display screen further comprises an audio assembly; the audio assembly comprises at least one loudspeaker arranged in the containing cavity; a plurality of second through holes are arranged on the side wall of the shell; and the loudspeaker is arranged towards the plurality of second through holes; and the upper end edge of each second through hole is provided with the water blocking part.

6. The smart display screen of claim 5, wherein, The audio assembly further comprises an annular second waterproof part; the second waterproof part is arranged between the loudspeaker and the inner wall of the shell and surrounds the plurality of second through holes.

7. The smart display screen of claim 6, wherein, The audio assembly further comprises a connecting part and a limiting part; the loudspeaker is connected with the shell through the connecting part and is arranged on the side of the connecting part far away from the second through holes; the limiting part is arranged on the side of the connecting part close to the second through holes; and the second waterproof part is arranged on the limiting part.

8. The smart display screen of claim 5, wherein, The heat dissipation assembly and the audio assembly are arranged on the same side wall in the shell and are arranged in the height direction of the smart display screen.

9. The smart display screen of any one of claims 1-8, wherein, The shell comprises a frame main body and two mounting frames; the two mounting frames are arranged on opposite sides of the frame main body and form the containing cavity together with the frame main body; and the liquid crystal screen assembly is arranged on the two mounting frames. Alternatively, the shell comprises a frame main body, one mounting frame and one cover plate; the mounting frame and the cover plate are arranged on opposite sides of the frame main body and form the containing cavity together with the frame main body; and the liquid crystal screen assembly is arranged on the mounting frame.

10. The smart display screen of claim 9, wherein, The mounting frame and / or the cover plate are rotatably provided on the frame body to open or close the accommodating cavity.

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