Box body and outdoor advertising machine

Abstract

The utility model discloses a box body and an outdoor advertising machine, the box body comprises a shell, a support, an exhaust fan and a water retaining assembly, and a plurality of exhaust holes are formed in one side wall of the shell; the bracket is arranged on the inner wall of the shell and is matched with the shell to form a sealed cavity; the sealing cavity is communicated with the outside atmosphere through the exhaust hole; the exhaust fan is arranged in the shell and communicates with the sealing cavity. The water retaining assembly is arranged on the inner wall of the sealing cavity and located on a fluid channel from the exhaust hole to the exhaust fan. While ventilation and heat dissipation in the box body are realized, water can be effectively prevented from entering the box body, so that the box body has relatively high waterproof capability.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of waterproof equipment, in particular to a box and an outdoor advertising machine. BACKGROUND

[0002] In the related art, the waterproof grade of the box of the electronic equipment set outdoors on the market is low, for example, generally only IPX4 (splash-proof for the box) can be met, and when the high-pressure water gun of the outside world sprays water on the box, the box will face the problems of water inflow risk and machine failure. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the application provides a box and an outdoor advertising machine to solve the problems of low waterproof grade of the box, water inflow risk and machine failure in the prior art.

[0004] To solve the above technical problems, the first technical solution provided by the application is to provide a box, which comprises a shell, a support, an exhaust fan and a water blocking assembly, a plurality of exhaust holes are formed in a side wall of the shell; the support is arranged on an inner wall of the shell and cooperates with the shell to form a sealed cavity; the sealed cavity is in communication with the outside atmosphere through the exhaust holes; the exhaust fan is arranged in the shell and is in communication with the sealed cavity; and the water blocking assembly is arranged on an inner wall of the sealed cavity and is located on a fluid passage from the exhaust hole to the exhaust fan.

[0005] In an embodiment, the shell comprises a side wall and a top wall connected to each other, the support comprises a first support plate and a second support plate, the first support plate cooperates with the side wall of the shell to form a first cavity; the second support plate is connected to the first support plate and cooperates with the top wall of the shell to form a second cavity; the second cavity and the first cavity are in communication with each other to form the sealed cavity; wherein the first cavity is in communication with the outside atmosphere through the exhaust hole; and the exhaust fan is in communication with the second cavity.

[0006] In an embodiment, the water blocking assembly comprises a first water blocking member and a second water blocking member, the first water blocking member is connected to at least one side wall of the first cavity and is spaced apart from the at least one side wall of the first cavity; the second water blocking member is connected to at least one side wall of the first cavity and is spaced apart from the at least one side wall of the first cavity; wherein the first water blocking member and the second water blocking member are spaced apart in the fluid flow direction of the fluid passage, and the first water blocking member and the second water blocking member are partially overlapped in the orthogonal projection on the cross section of the first cavity and cover the entire cross section of the first cavity.

[0007] In an embodiment, the first support plate has a first flow guide groove facing the sidewall of the shell, the first water blocking piece is connected with a first bottom wall of the first flow guide groove, and the second water blocking piece is connected with the sidewall of the shell; the second support plate has a second flow guide groove facing the top wall of the shell, and the exhaust fan is arranged on the second support plate and communicates with the second cavity through a through hole of a second bottom wall of the second flow guide groove.

[0008] In an embodiment, the first water blocking piece comprises a first connecting portion and a first extending portion connected with each other, the first connecting portion is connected with the first bottom wall of the first flow guide groove, the surface of the first extending portion away from the exhaust hole is a first inclined surface, and the included angle between the first inclined surface and the sidewall of the shell is an acute angle; the second water blocking piece comprises a second connecting portion and a second extending portion connected with each other, the second connecting portion is connected with the sidewall of the shell, and the surface of the second extending portion away from the exhaust hole is a second inclined surface, and the included angle between the second inclined surface and the sidewall of the shell is an obtuse angle.

[0009] In an embodiment, the first bottom wall of the first flow guide groove is connected with the second bottom wall of the second flow guide groove, and a third inclined surface is formed at the connection, the included angle between the third inclined surface and the sidewall of the shell is an acute angle, so that a water storage area is formed between the third inclined surface and the inner surface of the sidewall.

[0010] In an embodiment, the bottom surface of the first cavity is a fourth inclined surface inclined towards the sidewall of the shell, and the included angle between the fourth inclined surface and the sidewall of the shell is an acute angle.

[0011] In an embodiment, a louver is arranged on the exhaust hole, the outer port of the opening of the louver faces the bottom end of the shell, and the bottom end of the opening of the louver is arranged flush with the bottom end of the first inclined surface.

[0012] In an embodiment, the bracket, the water blocking assembly and the blades of the louver are all made of hot-dip galvanized steel plate.

[0013] To solve the above technical problems, a second technical solution provided by the present application is to provide an outdoor advertising machine, comprising an electronic display screen and a box body, the electronic display screen is used for displaying an advertising picture; the box body is at least partially arranged outside the electronic display screen, wherein the box body is any one of the above-mentioned box bodies.

[0014] The beneficial effects of the present application are as follows: different from the prior art, the box body of the present application includes a shell, a bracket, an exhaust fan and a water retaining assembly, and a side wall of the shell is provided with a plurality of exhaust holes; the bracket is arranged on the inner wall of the shell and cooperates with the shell to form a sealed cavity; the sealed cavity is connected to the outside atmosphere through the exhaust holes; the exhaust fan is arranged in the shell and communicates with the sealed cavity; the water retaining assembly is arranged on the inner wall of the sealed cavity and is located on the fluid channel from the exhaust holes to the exhaust fan. The present application arranges a bracket in the shell body of the box body, and makes the bracket cooperate with the shell to form a sealed cavity, which is only connected to the outside atmosphere through the exhaust holes in the sealed cavity; at the same time, an exhaust fan is arranged in the shell body to exhaust and dissipate heat from the shell body, and a water retaining assembly is arranged on the fluid channel from the exhaust holes to the exhaust fan to prevent water entering from the exhaust holes from entering the exhaust fan, and further prevent water from entering the shell body of the box body from the exhaust fan, while achieving ventilation and heat dissipation in the box body, it can also effectively prevent water from entering the box body, so that the box body has a strong waterproof ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technical workers in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the local structure of the box in the related art;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the box provided by this application;

[0018] Figure 3 It is a schematic diagram of the side structure of the box provided by this application;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the box provided by this application;

[0020] Figure 5 This application provides Figure 4 A schematic diagram of the structure of part A;

[0021] Figure 6 This is a side view of the overall structure of the bracket provided by this application;

[0022] Figure 7 Schematic diagram of the three-dimensional structure of the bracket provided in this application;

[0023] Figure 8 This application provides Figure 5 A schematic diagram of the structure of part B in the middle;

[0024] Figure 9 is a structural schematic diagram of an outdoor advertising machine provided by the present application. Figure 5 is a structural enlarged schematic diagram of part C in the present application.

[0025] Figure 10 is a structural schematic diagram of an outdoor advertising machine provided by the present application.

[0026] Explanation of reference signs:

[0027] 200, outdoor advertising machine; 201, electronic display screen; 100, box body; 10, shell; 101, side wall; 102, top wall; 103, air outlet; 104, louver; 1041, blade; 20, support; 21, first support plate; 22, second support plate; 30, air outlet fan; 40, water blocking assembly; 41, first water blocking piece; 410, first inclined surface; 411, first connecting part; 412, first extension part; 42, second water blocking piece; 420, second inclined surface; 421, second connecting part; 422, second extension part; 50, sealed cavity; 51, first cavity; 510, first flow guide groove; 511, first bottom wall; 512, first sub-side wall; 513, second sub-side wall; 514, sixth sub-side wall; 520, second flow guide groove; 521, second bottom wall; 5211, through hole; 522, third sub-side wall; 523, fourth sub-side wall; 524, fifth sub-side wall; 52, second cavity; 53, fourth inclined surface; 54, third inclined surface; 55, water storage area; 56, opening; 1, equipment case; 11, heat dissipation fan; 12, waterproof support. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] The terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eight" are used only for the purpose of description, and are not to be interpreted as indicating or implying relative importance or a specific number of the technical features indicated. Thus, features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eight" can explicitly or implicitly include at least one of the features. All directional indications, such as upper, lower, left, right, front, back, rear, etc., are used only for the purpose of explanation and are not to be interpreted as indicating or implying relative importance or a specific number of the components described. Furthermore, the terms "comprise", "comprising", "have", "having", "include", "including", "contain", "containing", and any variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, system, product, or apparatus that comprises a list of steps or units is not necessarily limited to those listed steps or units, but can optionally include additional steps or units not expressly listed or inherent to such process, method, product, or apparatus.

[0030] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that the embodiments described herein are merely examples from a whole class of comparable embodiments which those skilled in the art will readily appreciate.

[0031] In the related art, the waterproof level of the box body of the outdoor electronic device on the market (such as the box body of an outdoor advertising machine) is low, for example, it can only meet IPX4 (splash-proof for the box body) in general. However, the outdoor advertising machine is installed in an open public environment, such as a regional passageway, a bus station, a commercial street, etc. At present, the cleaning tool for environmental sanitation is generally upgraded to a mini cleaning vehicle, and a small high-pressure water gun is generally configured on the cleaning vehicle. When the cleaning vehicle is working, it is inevitable to cause impact on the machine box body. When the ordinary outdoor advertising machine is subjected to high-pressure water spray on the box body by the high-pressure water gun, there is a risk of water entering to different degrees, which finally causes machine failure. Figure 1 As shown in the partial structure diagram of the box body in the related art, a V-shaped waterproof support 12 is arranged on the inner wall of the equipment box 1, and a heat dissipation fan 11 is arranged above the top of the waterproof support 12. This structure has the problem that when there is a lot of water, the water will flow from the heat dissipation fan 11 to the inside of the equipment box 1, and the waterproof capability is weak.

[0032] To solve the above problems, the present application provides a new box body, which can reach IPX6 (high-pressure water spray for the box body) in waterproof level.

[0033] Please refer to Figures 2 to 6 , Figure 2 is a schematic diagram of the three-dimensional structure of the box body provided by the present application; Figure 3is a schematic view of a side structure of a box provided by the present application; Figure 4 is a schematic view of a cross-sectional structure of a box provided by the present application; Figure 5 is a schematic view of a cross-sectional structure of a box provided by the present application; Figure 4 is a schematic view of a cross-sectional structure of a box provided by the present application; Figure 6 is a schematic view of a side structure of a bracket provided by the present application.

[0034] As shown in Figures 1 to 5 , the box 100 provided by the present application comprises a shell 10, a bracket 20, an exhaust fan 30 and a water blocking assembly 40. A plurality of exhaust holes 103 are formed in a side wall 101 of the shell 10. The bracket 20 is arranged on an inner wall of the shell 10 and cooperates with the shell 10 to form a sealed cavity 50. The bracket 20 is preferably arranged on the same side wall 101 of the shell 10 as the exhaust holes 103, and the sealed cavity 50 is in communication with the outside atmosphere through the exhaust holes 103. It can be understood that the sealed cavity 50 is in communication with the outside atmosphere only through the exhaust holes 103, that is, the sealed cavity 50 is in a sealed state except at the positions of the exhaust holes 103. The exhaust fan 30 is arranged in the shell 10 and is in communication with the sealed cavity 50, so that the exhaust fan 30 can ventilate and dissipate heat in the shell 10 through the sealed cavity 50.

[0035] The water blocking assembly 40 is arranged on an inner wall of the sealed cavity 50 and is located on a fluid passage from the exhaust hole 103 to the exhaust fan 30, that is, the water blocking assembly 40 is located on a path from the exhaust hole 103 to the exhaust fan 30. The exhaust hole 103, the bracket 20 and the water blocking assembly 40 cooperate with each other to ventilate, dissipate heat and prevent water from entering the shell 10 from the exhaust fan 30. The present application forms a sealed cavity 50 by arranging the bracket 20 in the shell 10 of the box 100 and cooperating the bracket 20 with the shell 10, and the sealed cavity 50 is in communication with the outside atmosphere only through the exhaust holes 103 in the sealed cavity 50. At the same time, the exhaust fan 30 is arranged in the shell 10 to ventilate and dissipate heat in the shell 10, and the water blocking assembly 40 is arranged on the fluid passage from the exhaust hole 103 to the exhaust fan 30 to prevent water entering from the exhaust hole 103 from entering the exhaust fan 30 and further prevent water from entering the shell 10 of the box 100 from the exhaust fan 30. While achieving ventilation and heat dissipation in the box 100, the present application can effectively prevent water from entering the box 100, so that the box 100 has strong waterproof capability.

[0036] In an embodiment, the shell 10 comprises a side wall 101 and a top wall 102 connected to each other. It can be understood that the side wall 101 of the shell 10 herein can be the side wall 101 on which the bracket 20 is arranged. The side wall 101 and the top wall 102 can form an L-shaped corner of the box 100.

[0037] As shown in Figure 5 and Figure 6As shown, in an embodiment, the sealed cavity 50 can include a first cavity 51 and a second cavity 52. The bracket 20 can include a first support plate 21 and a second support plate 22 connected to each other (e.g., welded) or integrally formed, the first support plate 21 cooperating with the side wall 101 of the shell 10 to form the first cavity 51; the second support plate 22 connected to the first support plate 21 and cooperating with the top wall 102 of the shell 10 to form the second cavity 52; the second cavity 52 and the first cavity 51 being in communication with each other to form the sealed cavity 50, which can be in the shape of a cuboid, a triangular prism, etc. In a specific embodiment provided in the present application, the second cavity 52 and the first cavity 51 form a reversed L-shaped sealed cavity 50 in the corner of the box 100 formed by the side wall 101 and the top wall 102. The first cavity 51 is in communication with the outside atmosphere through the exhaust hole 103; the exhaust fan 30 is in communication with the second cavity 52, and the exhaust fan 30 can sequentially discharge the hot air generated by the equipment in the shell 10 through the second cavity 52, the first cavity 51 and the exhaust hole 103 to the outside atmosphere.

[0038] Please refer to Figures 7 to 9 , Figure 7 is a perspective view of the bracket provided in the present application; Figure 8 is a perspective view of the bracket provided in the present application; Figure 5 is an enlarged view of the structure of part B in Figure 9 is an enlarged view of the structure of part C in Figure 5 .

[0039] As shown in Figure 8 , in an embodiment, the water blocking assembly 40 includes a first water blocking member 41 and a second water blocking member 42, the first water blocking member 41 connected to and spaced apart from at least one side wall of the first cavity 51; the second water blocking member 42 connected to and spaced apart from at least one side wall of the first cavity 51. For example, the first water blocking member 41 and the second water blocking member 42 can be arranged on any side wall of the first cavity 51, but cannot be connected to all side walls of the first cavity 51 to prevent the complete blocking of the first cavity 51 so that the hot air in the shell 10 cannot be discharged. Wherein, the first water blocking member 41 and the second water blocking member 42 are arranged in a spaced apart manner in the fluid flow direction of the fluid channel, and the projection of the first water blocking member 41 and the second water blocking member 42 on the cross section of the first cavity 51 is arranged in an overlapping manner and covers the entire cross section of the first cavity 51. That is, the first water blocking member 41 and the second water blocking member 42 need to meet the condition that the projection of the first water blocking member 41 and the second water blocking member 42 on the cross section of the first cavity 51 is arranged in an overlapping manner and covers the entire cross section of the first cavity 51, and at the same time, the first water blocking member 41 and the second water blocking member 42 need to be arranged in a spaced apart manner to avoid the complete blocking of the first cavity 51 so that the air in the first cavity 51 cannot flow out to the outside. Wherein, Figure 8The two arrows in ⊂ represent the orthographic projection directions on the cross section of the first cavity 51 .

[0040] The present application does not specifically limit on which side wall of the first cavity 51 the first water retaining member 41 and the second water retaining member 42 are specifically arranged, as long as the first water retaining member 41 and the second water retaining member 42 can be partially overlapped in the orthographic projection on the cross section of the first cavity 51 and cover the entire cross section of the first cavity 51 and are spaced apart from each other.

[0041] like Figure 7 As shown, in one embodiment, the first support plate 21 has a first guide groove 510 facing the side wall 101 of the shell 10, and the first guide groove 510 may include a first bottom wall 511, a first sub-side wall 512, and a second sub-side wall 513. The first water retaining member 41 can be connected to the first bottom wall 511, the first sub-side wall 512, and the second sub-side wall 513 of the first guide groove 510, and the second water retaining member 42 can also be connected to the first bottom wall 511, the first sub-side wall 512, the second sub-side wall 513 of the first guide groove 510 or the side wall 101 of the shell 10. In a specific embodiment, the first water retaining member 41 is connected to the first bottom wall 511 of the first guide groove 510, and the second water retaining member 42 is connected to the side wall 101 of the shell 10.

[0042] Similarly, the second support plate 22 has a second guide groove 520 facing the top wall 102 of the housing 10. The second guide groove 520 may include a second bottom wall 521, a third sub-side wall 522, and a fourth sub-side wall 523. At the same time, a through hole 5211 is opened on the second bottom wall 521. The exhaust fan 30 is disposed on the second support plate 22 and communicates with the second cavity 52 through the through hole 5211 of the second bottom wall 521. It will be understood that a fifth sub-side wall 524 may be further provided on the side of the second bottom wall 521, the third sub-side wall 522, and the fourth sub-side wall 523 away from the first support plate 21 to block the second cavity 52. In the embodiment provided in the present application, the first water retaining member 41 and the second water retaining member 42 can be simultaneously arranged on one of the same sub-side wall or the same bottom wall, or can be arranged one-to-one on different sub-side walls or different bottom walls. For example, the first water retaining member 41 is arranged on the first bottom wall 511, and the second water retaining member 42 is arranged on the side wall 101 of the shell 10.

[0043] like Figure 8As shown, in an embodiment, the first water blocking member 41 can include a first connecting portion 411 and a first extending portion 412 connected to each other, the first connecting portion 411 is connected to the first bottom wall 511 of the first flow guide groove 510, for example, by welding, screwing, or the like, the first extending portion 412 has a first inclined surface 410 facing away from the surface of the air outlet hole 103, and the first inclined surface 410 forms an acute angle a with the side wall 101 of the housing 10, so that the water can flow down from the first inclined surface 410 after entering above the first extending portion 412. The second water blocking member 42 includes a second connecting portion 421 and a second extending portion 422 connected to each other, the second connecting portion 421 is connected to the side wall 101 of the housing 10, for example, by welding, screwing, or the like, the second extending portion 422 has a second inclined surface 420 facing away from the surface of the air outlet hole 103, and the second inclined surface 420 forms an obtuse angle β with the side wall 101 of the housing 10, so that the water can flow down from the second inclined surface 420 after entering above the second extending portion 422.

[0044] As shown, Figure 7 and Figure 8 As shown, in an embodiment, the first bottom wall 511 of the first flow guide groove 510 is connected to the second bottom wall 521 of the second flow guide groove 520, and a third inclined surface 54 is formed at the connection, the third inclined surface 54 forms an acute angle θ with the side wall 101 of the housing 10, so that the third inclined surface 54 and the inner surface of the side wall 101 of the housing 10 can form a water storage area 55, thereby preventing water from entering the second cavity 52. At the same time, the third inclined surface 54 can make the water in the water storage area 55 more easily flow to the first cavity 51 and further flow out of the air outlet hole 103.

[0045] As shown, Figure 9 As shown, in an embodiment, the bottom surface of the first cavity 51 is a fourth inclined surface 53 inclined towards the side wall 101 of the housing 10, and the fourth inclined surface 53 forms an acute angle γ with the side wall 101 of the housing 10. It can be understood that the bottom surface of the first cavity 51 can also be understood as another sub-side wall, for example, the sixth sub-side wall 514, of the first flow guide groove 510 away from the second flow guide groove 520.

[0046] As shown, Figure 5 and Figure 9As shown, in an embodiment, the air outlet hole 103 can be provided with a louver 104, the louver 104 is composed of a plurality of blades 1041 arranged in parallel, in the embodiment, the arrangement direction of the plurality of blades 1041 of the louver 104 is perpendicular to the extension direction of the side wall 101 of the shell 10, preferably perpendicular, the opening 56 of the louver 104 is formed between two adjacent blades 1041, it can be understood that the opening 56 is a through hole penetrating from the inner surface of the side wall 101 to the outer surface of the side wall 101. In the embodiment, the outer end of the opening 56 of the louver 104 is directed to the bottom end of the shell 10, so as to prevent rain or water from entering the sealed cavity 50 from top to bottom. At the same time, the bottom end of the opening 56 of the bottommost blade 1041 of the louver 104 is flush with or smoothly transitions to the bottom end of the first inclined surface 410, so that the water entering from the air outlet hole 103 can be easily discharged from the opening 56, and at the same time, the bottom of the first cavity 51 is prevented from accumulating water.

[0047] In an embodiment, the bracket 20, the water blocking assembly 40 and the blades 1041 of the louver 104 are all made of hot-dip galvanized steel plate (SGCC), which is a ferritic stainless steel material with good corrosion resistance, so that the box body 100 can have a long service life when placed outdoors for a long time.

[0048] Please refer to Figure 10 , Figure 10 is a structural schematic diagram of an outdoor advertising machine provided by the present application.

[0049] In order to solve the above technical problems, the present application also provides an outdoor advertising machine 200, comprising an electronic display screen 201 and a box body 100, the electronic display screen 201 is used for displaying an advertising picture, the electronic display screen 201 can be an LCD display screen, an LED display screen or an OLED display screen, etc., which is not limited by the present application. The box body 100 is at least partially arranged outside the electronic display screen 201, for example, the box body 100 is wrapped around the electronic display screen 201 except for the display surface, such as the top surface, the bottom surface and the back surface, etc., and at the same time, the connection position between the box body 100 and the electronic display screen 201 can be sealed by sealing glue to prevent water from entering from the connection position. The box body 100 is any one of the box bodies 100 described above, which will not be described here.

[0050] It should be noted that the box body 100 described in any one of the above embodiments of the present application can be applied not only to the outdoor advertising machine 200, but also to an outdoor distribution box (not shown in the figure) or any other device box that needs to be waterproof and heat dissipated, which is not limited by the present application. At the same time, the outdoor advertising machine 200 of the present application can also be provided with other components as needed, such as a controller (not shown in the figure), a sensor (not shown in the figure), an audio circuit (not shown in the figure) and the like.

[0051] The box disclosed in the application comprises a shell, a support, an exhaust fan and a water blocking assembly. A plurality of exhaust holes are formed in a side wall of the shell. The support is arranged on an inner wall of the shell and cooperates with the shell to form a sealed cavity. The sealed cavity is in communication with the outside atmosphere through the exhaust holes. The exhaust fan is arranged in the shell and is in communication with the sealed cavity. The water blocking assembly is arranged on an inner wall of the sealed cavity and is located on a fluid passage from the exhaust hole to the exhaust fan. The support is arranged in the shell of the box and cooperates with the shell to form a sealed cavity. The sealed cavity is in communication with the outside atmosphere only through the exhaust holes. The exhaust fan is arranged in the shell to perform exhaust and heat dissipation. The water blocking assembly is arranged on the fluid passage from the exhaust hole to the exhaust fan to prevent water entering the exhaust fan from the exhaust hole and further prevent water from entering the shell of the box from the exhaust fan. The box can achieve ventilation and heat dissipation and effectively prevent water from entering the box, so that the box has strong waterproof capability.

[0052] The above description is only an embodiment of the application and does not limit the patent scope of the application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings or directly or indirectly applied to other related technical fields is also included in the patent protection scope of the application.

Claims

1. A case characterized by comprising: The box comprises: a housing, a side wall of which is provided with a plurality of air outlet holes; a support arranged on an inner wall of the housing and cooperating with the housing to form a sealed cavity; the sealed cavity is in communication with the outside atmosphere through the air outlet holes; an air outlet fan arranged in the housing and in communication with the sealed cavity; a water blocking assembly arranged on an inner wall of the sealed cavity and located on a fluid passage from the air outlet hole to the air outlet fan.

2. The case of claim 1, wherein, The housing comprises a side wall and a top wall connected to each other; the support comprises: a first support plate cooperating with the side wall of the housing to form a first cavity; a second support plate connected to the first support plate and cooperating with the top wall of the housing to form a second cavity; the second cavity is in communication with the first cavity to form the sealed cavity; wherein the first cavity is in communication with the outside atmosphere through the air outlet holes; the air outlet fan is in communication with the second cavity.

3. The case of claim 2, wherein, The water blocking assembly comprises: a first water blocking member connected to at least one side wall of the first cavity and spaced apart from the at least one side wall of the first cavity; and a second water blocking member connected to at least one side wall of the first cavity and spaced apart from the at least one side wall of the first cavity; wherein the first water blocking member and the second water blocking member are arranged in the fluid flow direction of the fluid passage, the first water blocking member and the second water blocking member are arranged in overlapping relationship in the orthographic projection of the first water blocking member and the second water blocking member on the cross section of the first cavity and cover the entire cross section of the first cavity.

4. The box according to claim 3, wherein the first support plate has a first flow guide groove facing the side wall of the housing, the first water blocking member is connected to a first bottom wall of the first flow guide groove, and the second water blocking member is connected to the side wall of the housing; the second support plate has a second flow guide groove facing the top wall of the housing, and the air outlet fan is arranged on the second support plate and in communication with the second cavity through a through hole of a second bottom wall of the second flow guide groove.

5. The box according to claim 4, wherein the first water blocking member comprises a first connecting portion and a first extending portion connected to each other, the first connecting portion is connected to the first bottom wall of the first flow guide groove, a surface of the first extending portion facing away from the air outlet hole is a first inclined surface, and an included angle between the first inclined surface and the side wall of the housing is an acute angle; the second water blocking member comprises a second connecting portion and a second extending portion connected to each other, the second connecting portion is connected to the side wall of the housing, a surface of the second extending portion facing away from the air outlet hole is a second inclined surface, and an included angle between the second inclined surface and the side wall of the housing is an obtuse angle.

6. The box according to claim 5, wherein a first bottom wall of the first flow guide groove is connected to a second bottom wall of the second flow guide groove, and a third inclined surface is formed at the connection, and an included angle between the third inclined surface and the side wall of the housing is an acute angle.

7. A case according to any one of claims 2 to 6, wherein a bottom surface of the first cavity is a fourth inclined surface inclined towards the side wall of the housing, and an included angle between the fourth inclined surface and the side wall of the housing is an acute angle.

8. The case of claim 7, wherein, the air outlet hole is provided with The louver has an opening with an outer port facing the bottom end of the housing, and the opening bottom end of the louver is flush with the bottom end of the first inclined surface of the water-blocking assembly.

9. The box according to claim 8, wherein, The bracket, the water-blocking assembly and the louver blade are all made of hot-dip galvanized steel plate.

10. An outdoor advertising machine characterized by comprising: Comprise: An electronic display screen for displaying an advertisement picture; A box at least partially arranged outside the electronic display screen, wherein the box is any one of claims 1-9.

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