Waterproof shutter and cabinet body

Abstract

The utility model provides a waterproof shutter and a cabinet body, the waterproof shutter is used as a waterproof ventilation structure of the cabinet body, the waterproof shutter comprises a connecting frame and a blade group, and the blade group comprises a plurality of blades which are connected to the connecting frame and are sequentially arranged along the length direction; a ventilating duct communicating the inside and the outside of the cabinet body exists between two adjacent blades; each blade comprises a first flow guide part and a first water retaining part; the first flow guide part is provided with a first side facing the interior of the cabinet body and a second side facing the exterior of the cabinet body; the first diversion part is provided with a first end and a second end; the first flow guide part is obliquely arranged in the length direction from the first end to the second end, in the thickness direction and in the direction from the first side to the second side; the first water retaining part is connected to the first side and close to the first end, and the extension length of the first water retaining part is a preset value. In addition, the first water retaining part is arranged, when liquid with large water pressure enters, the liquid is intercepted by the first water retaining part and then returns to the second side of the first flow guide part so as to flow out of the cabinet body, and the waterproof effect is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of waterproof ventilation structures, and particularly relates to a waterproof louver and cabinet. Background Technology

[0002] With the increasing prevalence of outdoor products, outdoor enclosures, in addition to fulfilling their functions, require increasingly higher levels of waterproof reliability. This is often achieved through the use of louvered structures to meet ventilation, heat dissipation, and waterproofing requirements. However, in current technologies, to achieve better heat dissipation, the louvered structures only provide an IPX4 waterproof rating, which is insufficient. This necessitates the addition of extra canopies for IP protection at outdoor product sites, causing inconvenience to users. Utility Model Content

[0003] The technical objective of this invention is to provide a waterproof louver, which aims to solve the technical problem of poor waterproof performance of outdoor products in related technologies.

[0004] To solve the above-mentioned technical problems, this utility model is implemented as follows: a waterproof louver for use as a waterproof ventilation structure for a cabinet. The waterproof louver includes a connecting frame and a blade assembly. The blade assembly includes a plurality of blades connected to the connecting frame and arranged sequentially along the length direction. A ventilation channel connecting the inside and outside of the cabinet is present between adjacent blades. Each blade includes a first guide portion and a first water-blocking portion. The first guide portion has a first side facing the inside of the cabinet and a second side facing the outside of the cabinet. The first guide portion has a first end and a second end. The first guide portion is inclined along the length direction from the first end to the second end, and along the thickness direction from the first side to the second side. The first water-blocking portion is connected to the first side and close to the first end, and the extension length of the first water-blocking portion is a preset value.

[0005] Furthermore, in some embodiments, the first water-blocking portion is orthogonally disposed to the first flow-guiding portion; or, the first water-blocking portion is inclined along the thickness direction from the second side to the first side.

[0006] Furthermore, in some embodiments, the blade further includes a second guide portion connected to the second end, and the second guide portion is parallel to the length direction; or, the second guide portion extends from the second end in a direction away from the first end and is inclined in the thickness direction from the first side to the second side.

[0007] Furthermore, in some embodiments, the blade further includes a third guide portion connected to the first end, and the third guide portion is parallel to the length direction; or, the third guide portion extends from the first end in a direction away from the second end and is inclined in the thickness direction from the first side to the second side, and the inclination degree of the third guide portion is less than the inclination degree of the first guide portion.

[0008] Furthermore, in some embodiments, the blade further includes a second water-blocking portion connected to one end of the third guide portion away from the first guide portion, the second water-blocking portion being orthogonal to the third guide portion; or, the second water-blocking portion extends from the third guide portion in a direction away from the first guide portion and is inclined in the thickness direction from the first side to the second side.

[0009] Furthermore, in some embodiments, the connecting frame includes two supports spaced apart along the width direction, and the blade assembly is fixedly assembled between the two supports.

[0010] Furthermore, in some embodiments, the bracket includes a first abutting structure and a second abutting structure arranged sequentially along the length direction, wherein the side of the first water-blocking portion away from the first flow guide portion abuts against the first abutting structure, and the side of the second water-blocking portion away from the first flow guide portion abuts against the second abutting structure.

[0011] Furthermore, in some embodiments, the bracket further includes a first snap-fit ​​structure, and the blade further includes a second snap-fit ​​structure connected to the side of the second flow guide away from the first flow guide, the side of the second snap-fit ​​structure facing the first flow guide abutting against the first snap-fit ​​structure.

[0012] Furthermore, in some embodiments, the support includes a base portion and a cover portion, the base portion and the cover portion being fitted together along the thickness direction and detachably assembled, and the blade abutting against the base portion and the cover portion on both sides along the thickness direction, respectively.

[0013] The second aspect of this utility model provides a cabinet, including a main body and waterproof louvers as described above, wherein the connecting frame is connected to the main body.

[0014] The waterproof louvers in this invention have the following advantages compared to related technologies:

[0015] In this invention, several blades are arranged sequentially along the length direction, and a ventilation channel is formed between adjacent blades. This allows for heat dissipation and ventilation inside the cabinet when the waterproof louvers are used. Furthermore, each blade includes a first guide section. Along the length direction, with the first end of the first guide section as the upper side and the second end as the lower side, the first guide section slopes downwards from the first side to the second side in the thickness direction, i.e., from inside the cabinet to outside. This allows the first guide section to direct liquid with lower pressure towards the outside of the cabinet when liquid wants to enter the cabinet through the ventilation channel. Further, a first water-blocking section is provided on the upper side, facing inwards from the first guide section. When liquid with higher pressure enters the cabinet, it will sequentially pass through the second side of the first guide section, the first side of the first guide section, and the first water-blocking section. After being intercepted by the first water-blocking section, it returns to the second side of the first guide section and finally flows out of the cabinet, thereby further improving the waterproof effect. Attached Figure Description

[0016] 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 from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the waterproof louvers in an embodiment of this utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of the waterproof louvers in an embodiment of this utility model;

[0019] Figure 3 yes Figure 2 Enlarged view of detail A in the middle;

[0020] Figure 4 This is a three-dimensional structural diagram of the blade in an embodiment of this utility model;

[0021] Figure 5 This is a cross-sectional schematic diagram of the blade in an embodiment of this utility model;

[0022] Figure 6 This is a structural schematic diagram of the cabinet in Embodiment 1 of this utility model;

[0023] Figure 7 This is a schematic diagram of the cabinet structure in Embodiment 2 of this utility model.

[0024] In the accompanying drawings, the reference numerals indicate: 1. Connecting frame; 11. Support; 111. First abutting structure; 112. Second abutting structure; 113. First snap-fit ​​structure; 114. Base part; 115. Cover part; 2. Blade; 21. First guide part; 22. First water-blocking part; 23. Second guide part; 24. Third guide part; 25. Second water-blocking part; 26. Second snap-fit ​​structure; 10. Main body part. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "thickness direction", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Please see Figures 1 to 7This utility model embodiment provides a waterproof louver for use as a waterproof ventilation structure for a cabinet. The waterproof louver includes a connecting frame 1 and two sets of blades. The two sets of blades are connected to the connecting frame 1 and are arranged sequentially along the length direction. There is a ventilation channel between adjacent blades 2 that connects the inside and outside of the cabinet. The blades 2 include a first guide portion 21 and a first water-blocking portion 22. The first guide portion 21 has a first side facing the inside of the cabinet and a second side facing the outside of the cabinet. The first guide portion 21 has a first end and a second end. The first guide portion 21 is inclined along the length direction from the first end to the second end and along the thickness direction from the first side to the second side. The first water-blocking portion 22 is connected to the first side and close to the first end, and the extension length of the first water-blocking portion 22 is a preset value.

[0029] In this embodiment of the invention, a plurality of blades 2 are arranged sequentially along the length direction, and a ventilation channel is formed between adjacent blades 2. This allows for heat dissipation and ventilation inside the cabinet when the waterproof louvers are used. Additionally, the blades 2 include a first guide section 21. Along the length direction, with the first end of the first guide section 21 as the upper side and the second end as the lower side, the first guide section 21 slopes from the first side to the second side in the thickness direction, i.e., from inside the cabinet to outside. This allows the first guide section 21 to guide liquid with lower pressure to flow out of the cabinet when liquid wants to enter the cabinet through the ventilation channel. Furthermore, on the upper side, and on the inner side of the first guide section 21 facing the cabinet, a first water-blocking section 22 is also provided. In this way, when a liquid with high water pressure enters the cabinet, it will pass through the second side of the first guide section 21, the first side of the first guide section 21, and the first water-blocking section 22 in sequence. After being intercepted by the first water-blocking section 22, it will return to the second side of the first guide section 21 and finally flow out of the cabinet, thereby further improving the waterproof effect.

[0030] Understandably, the extension length of the first water-blocking part 22 is a preset value. The size of the first water-blocking part 22 will affect the ventilation and waterproofing effects. The longer the first water-blocking part 22 is, the better the waterproofing effect will be, but the ventilation effect may be somewhat affected. Therefore, in actual practice, the size of the first water-blocking part 22 can be set according to actual needs, so that the waterproofing effect can be improved while ensuring the heat dissipation and ventilation effects.

[0031] It should be noted that the waterproof louvers of this utility model embodiment can be used not only for cabinets, but also for boxes, shells, and any other products that require a waterproof and ventilated structure.

[0032] Furthermore, the connection angle between the first water-blocking part 22 and the first flow-guiding part 21 can be set according to the flow pattern of the liquid with high water pressure.

[0033] For some specific embodiments, please refer to Figure 4 and Figure 5 The first water-blocking part 22 and the first flow-guiding part 21 are orthogonally arranged. In this way, there is a right-angled space between the first water-blocking part 22 and the first flow-guiding part 21 on the first side. Since the first flow-guiding part 21 is inclined, with the first end of the first flow-guiding part 21 as the upper side and the second end as the lower side, this space is equivalent to a right-angled groove with the opening facing downward. This can intercept most of the liquid with high pressure without affecting the heat dissipation and ventilation effect.

[0034] In some specific embodiments, the first water-blocking part 22 is inclined from the second side to the first side along the thickness direction. Specifically, the first water-blocking part 22 is connected to the side of the first flow guide part 21 facing the cabinet, and the first water-blocking part 22 is inclined from the outside of the cabinet to the inside of the cabinet. In this way, with the first end of the first flow guide part 21 as the upper side and the second end as the lower side, it is equivalent to forming an obtuse-angled groove with the opening facing downward, which can also intercept most of the liquid with high pressure without affecting the heat dissipation and ventilation effect.

[0035] Understandably, in some embodiments, it is also possible to have the first water-blocking part 22 inclined along the thickness direction from the first side to the second side. However, the waterproof effect may not be as good as that of the first two embodiments. But compared with related technologies that do not have the first water-blocking part 22, the waterproof effect of the waterproof louver of this utility model embodiment is still improved.

[0036] Furthermore, in some embodiments, please refer to Figure 4 and Figure 5 The blade 2 also includes a second guide section 23, which is connected to the second end. Specifically, with the first end of the first guide section 21 as the upper side and the second end as the lower side, the second guide section 23 is also connected to the lower side of the first guide section 21. In this way, the liquid flows through the first guide section 21 and the second guide section 23 in sequence, allowing the liquid to flow better outside the cabinet and preventing the liquid from flowing back into the cabinet, thus achieving a better waterproof effect.

[0037] In some specific embodiments, the second guide section 23 is parallel to the length direction. This allows the liquid flowing out from the first guide section 21 to flow vertically downwards, preventing the liquid from flowing back into the cabinet and achieving a better waterproof effect.

[0038] In some specific embodiments, the second guide portion 23 extends from the second end in a direction away from the first end and is inclined in the thickness direction from the first side to the second side.

[0039] Specifically, the second guide section 23 is connected to the lower end of the first guide section 21 and extends downwards, while tilting from inside the cabinet to outside the cabinet. In this way, the liquid can be guided away from the cabinet through the second guide section 23, and the liquid can also be prevented from flowing back into the cabinet.

[0040] Furthermore, in some embodiments, please refer to Figure 4 and Figure 5 The blade 2 also includes a third guide section 24, which is connected to the first end. Specifically, with the first end of the first guide section 21 as the upper side and the second end as the lower side, a second guide section 23 is also connected to the upper side of the first guide section 21. In this way, if liquid wants to flow from the first end of the first guide section 21 into the cabinet, it can be intercepted by the second guide section 23, further improving the waterproof effect.

[0041] For some specific embodiments, please refer to Figure 4 and Figure 5 The third guide section 24 is parallel to the length direction. In this way, the liquid intercepted by the third guide section 24 flows vertically towards the first guide section 21.

[0042] In some specific embodiments, the third guide portion 24 extends from the first end in a direction away from the second end and is inclined in the thickness direction from the first side to the second side. The inclination degree of the third guide portion 24 is less than the inclination degree of the first guide portion 21.

[0043] Specifically, the third guide section 24 extends upward from the first end of the first guide section 21 and slopes from inside the cabinet to outside the cabinet. In this way, the liquid can be guided away from the cabinet through the third guide section 24, and the liquid can also be prevented from flowing back into the cabinet, thereby further improving the waterproof effect.

[0044] In some possible implementations, the third guide section 24 can be set to extend upward from the first end of the first guide section 21 and tilt towards the inside of the cabinet, but the tilt is slightly smaller, that is, close to parallel to the length direction. In this way, liquid can also be intercepted, further improving the waterproof effect.

[0045] Furthermore, in some embodiments, please refer to Figure 4 and Figure 5 The blade 2 also includes a second water-blocking portion 25 connected to the end of the third guide portion 24 away from the first guide portion 21. The second water-blocking portion 25 is orthogonal to the third guide portion 24; or, the second water-blocking portion 25 extends from the third guide portion 24 away from the first guide portion 21 and is inclined in the thickness direction from the first side to the second side.

[0046] Specifically, based on the third guide section 24, a second water-blocking section 25 can be further provided, and the second water-blocking section 25 is positioned on the second side relative to the first guide section 21, thus further intercepting liquid. Furthermore, it is understandable that the size of the second water-blocking section 25 can be adjusted according to actual conditions, so that the second water-blocking section 25 does not affect the ventilation duct while still achieving a good waterproof effect.

[0047] Furthermore, in some embodiments, please refer to Figures 1 to 3 The connecting frame 1 includes two supports 11 spaced apart along the width direction, and the blade 2 is fixedly assembled between the two supports 11. By assembling the blade 2 between the two supports 11, the two ends of the blade 2 are used for fixed connection, while the middle part of the blade 2 is used for ventilation and waterproofing.

[0048] Furthermore, in some embodiments, please refer to Figures 1 to 3 The bracket 11 includes a first abutting structure 111 and a second abutting structure 112 arranged sequentially along the length direction. The side of the first water-blocking part 22 away from the first flow guide part 21 abuts against the first abutting structure 111, and the side of the second water-blocking part 25 away from the first flow guide part 21 abuts against the second abutting structure 112.

[0049] Specifically, along the length direction, with the first end of the first guide section 21 as the upper side and the second end as the lower side, the second water-blocking part 25 above the first guide section 21 abuts against the second abutting structure 112, while the first water-blocking part 22 below the first guide section 21 abuts against the first abutting structure 111. In this way, the bracket 11 and the blade 2 can be fixedly assembled in the length direction.

[0050] Furthermore, in some embodiments, please refer to Figures 1 to 3 The bracket 11 also includes a first snap-fit ​​structure 113, and the blade 2 also includes a second snap-fit ​​structure 26 connected to the side of the second guide portion 23 away from the first guide portion 21, with the side of the second snap-fit ​​structure 26 facing the first guide portion 21 abutting against the first snap-fit ​​structure 113.

[0051] Specifically, the support 11 may also include a first snap-fit ​​structure 113, and the blade 2 may also include a second snap-fit ​​structure 26 connected to the second guide portion 23. Thus, along the length direction, with the first end of the first guide portion 21 as the upper side and the second end as the lower side, the blade 2 may sequentially include a second water-blocking portion 25, a first water-blocking portion 22, and a second snap-fit ​​structure 26. By further setting the side of the second snap-fit ​​structure 26 facing the first guide portion 21 to abut against the first snap-fit ​​structure 113, the connection stability of the support 11 and the blade 2 in the length direction can be further improved.

[0052] In addition, it is understandable that the first water-blocking part 22 and the second water-blocking part 25 can serve as both liquid-blocking structures and assembly positioning structures, thus enriching the uses of the blade 2 structure and saving costs.

[0053] Furthermore, in some specific embodiments, please refer to Figures 1 to 3 The blade 2 also includes a sub-clamping portion connected to the side of the second guide portion 23 away from the first guide portion 21. The clamping portion includes the sub-clamping portion, and the second abutting structure 112 includes the second sub-abutting portion. The side of the sub-clamping portion facing the second guide portion 23 abuts against the second sub-abutting portion.

[0054] Specifically, the snap-fit ​​part can also be a sub-snap-fit ​​part, and the second abutting structure 112 can be correspondingly configured as a second sub-abutting part located on the side of the first guide part 21 facing the first water-blocking part 22, so that the sub-snap-fit ​​part abuts against the second sub-abutting part.

[0055] Understandably, in some specific embodiments, along the length direction, with the first end of the first guide portion 21 as the upper side and the second end as the lower side, on the support 11, excluding the uppermost second abutting structure 112 and the lowermost first abutting structure 111, in the middle part along the length direction, the upper first abutting structure 111 and the adjacent lower second abutting structure 112 can be integrally formed, so that on the support 11, along the length direction, there are uppermost second abutting structures 112, a plurality of abutting portions arranged at intervals in the middle, and lowermost first abutting structures 111, wherein the abutting portion facing upward is the first abutting structure 111 and the abutting portion facing downward is the second abutting structure 112.

[0056] Furthermore, in some embodiments, please refer to Figures 1 to 3 The support 11 includes a base portion 114 and a cover portion 115. The base portion 114 and the cover portion 115 are fitted together along the thickness direction and are detachably assembled. The blade 2 abuts against the base portion 114 and the cover portion 115 on both sides along the thickness direction, respectively. By providing the cover portion 115 to fit over the base portion 114, the blade 2 is snapped into the support 11 along the thickness direction. Furthermore, since the blade 2 is fixed between the two supports 11 along the width direction and relatively fixed to the supports 11 along the length direction, the blade 2 can be integrally fixedly assembled to the support 11.

[0057] Furthermore, in some specific embodiments, a protruding structure can be extended along the length direction on the second abutting structure 112, so that while the second water-blocking part 25 abuts against the second abutting structure 112, the side of the second water-blocking part 25 away from the base part 114 can abut against the protruding structure, thereby further improving the assembly stability of the blade 2 and the support 11 along the thickness direction.

[0058] In related technologies, most of the waterproof louvers for outdoor enclosures are made by welding, which can lead to rust and corrosion problems when used outdoors. Furthermore, the welded louver blades must be made of the same material as the main body parts, which is not conducive to reducing the cost of structural components through material and process differentiation. Some sheet metal directly stamps louvers, but this method cannot meet the needs of different louver lengths. When the length is different, different stamping dies must be made, resulting in high process costs and the cut edges are prone to rapid corrosion.

[0059] In this embodiment of the utility model, the blade 2 and the bracket 11 are assembled and connected by snap-fit, which can solve the problem of easy corrosion and rust of welded louvers in outdoor environments in related technologies. It can reduce the traditional sheet metal processing, welding, spraying and riveting process of louvers, and greatly reduce production costs.

[0060] In this embodiment of the invention, the blade 2 is assembled and connected to the bracket 11 by a snap-fit ​​connection. This solves the problem of corrosion and rust in outdoor environments caused by welded louvers in related technologies. It also reduces the traditional welding, painting, and riveting processes of louvers, significantly lowering production costs. Furthermore, the material of the louvers can be changed according to the requirements of different application environments. For example, lower-cost extruded plastic profiles can be used to reduce costs without altering the design of the main structure. In addition, in this embodiment of the invention, the corresponding snap-fit ​​structure of the blade 2 extends along the width direction of the blade 2. For example, the first water-blocking part 22, the second water-blocking part 25, and the sub-snap-fitting structure of the blade 2 all extend parallel to the width direction of the blade 2. This allows the blade 2 to be suitable for most length requirements, making the distance between the two brackets 11 along the width direction more varied. The length of the blade 2 is variable and can be cut according to different length requirements, flexibly meeting the requirements of various cabinet specifications.

[0061] Furthermore, in some embodiments, please refer to Figure 6 and Figure 7 The waterproof louvers may also include multiple sets of blades, and the structure of the bracket 11 that is assembled and connected to the blades 2 can be correspondingly arranged. For example, the waterproof louvers include two sets of blades spaced apart along the thickness direction. The outermost part of the bracket 11 includes multiple first abutment structures 111 and multiple second abutment structures 112 spaced apart along the length direction. At the same time, along the thickness direction, the slightly inner side of the bracket 11 also has first abutment structures 111 and second abutment structures 112 spaced apart and aligned with the outermost part. This can further improve the waterproof requirements of the cabinet, so that the waterproof louvers of this utility model embodiment can meet the IPX4 and IPX5 environmental requirements, improve the normalization level, and save costs.

[0062] The second aspect of this utility model provides a cabinet, including a main body 10 and waterproof louvers, with a connecting frame 1 connected to the main body 10.

[0063] Specifically, the connecting frame 1 can be detachably connected to the main body 10, or it can be integrally formed with the main body 10. In this embodiment of the present invention, a plurality of blades 2 are arranged sequentially along the length direction, and a ventilation channel is formed between adjacent blades 2. In this way, when the waterproof louvers are used in the cabinet, heat dissipation and ventilation inside the cabinet can be achieved. In addition, the blades 2 include a first guide section 21. Along the length direction, with the first end of the first guide section 21 as the upper side and the second end as the lower side, the first guide section 21 is inclined from the first side to the second side in the thickness direction, that is, from inside the cabinet to outside the cabinet. In this way, when liquid wants to enter the cabinet through the ventilation channel, the first guide section 21 can guide the liquid with lower water pressure to flow to the outside of the cabinet. Furthermore, on the upper side, and on the inner side of the first guide section 21 facing the cabinet, a first water-blocking section 22 is also provided. In this way, when a liquid with high water pressure enters the cabinet, it will pass through the second side of the first guide section 21, the first side of the first guide section 21, and the first water-blocking section 22 in sequence. After being intercepted by the first water-blocking section 22, it will return to the second side of the first guide section 21 and finally flow out of the cabinet, thereby further improving the waterproof effect.

[0064] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0065] The above is a description of the technical solution provided by this utility model. For those skilled in the art, based on the idea of ​​the embodiments of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A waterproof louver for use as a waterproof ventilation structure for cabinets, characterized in that, The waterproof louvers include a connecting frame and a blade assembly. The blade assembly includes a plurality of blades connected to the connecting frame and arranged sequentially along the length direction. There is a ventilation channel connecting the inside and outside of the cabinet between two adjacent blades. The blade includes a first guide section and a first water-blocking section; The first flow guide has a first side facing the inside of the cabinet and a second side facing the outside of the cabinet; the first flow guide has a first end and a second end; the first flow guide is inclined along the length direction from the first end to the second end, and along the thickness direction from the first side to the second side; The first water-blocking part is connected to the first side and close to the first end, and the extension length of the first water-blocking part is a preset value.

2. The waterproof louver according to claim 1, characterized in that, The first water-blocking part is orthogonally arranged to the first flow-guiding part; or, the first water-blocking part is inclined along the thickness direction from the second side to the first side.

3. The waterproof louver according to claim 1, characterized in that, The blade further includes a second guide portion connected to the second end, and the second guide portion is parallel to the length direction; or, the second guide portion extends from the second end in a direction away from the first end and is inclined in the thickness direction from the first side to the second side.

4. The waterproof louver according to claim 3, characterized in that, The blade further includes a third guide portion connected to the first end, and the third guide portion is parallel to the length direction; or, the third guide portion extends from the first end in a direction away from the second end and is inclined in the thickness direction from the first side to the second side, and the inclination degree of the third guide portion is less than the inclination degree of the first guide portion.

5. The waterproof louver according to claim 4, characterized in that, The blade further includes a second water-blocking portion connected to one end of the third guide portion away from the first guide portion, the second water-blocking portion being orthogonal to the third guide portion; or, the second water-blocking portion extends from the third guide portion away from the first guide portion and is inclined in the thickness direction from the first side to the second side.

6. The waterproof louver according to claim 5, characterized in that, The connecting frame includes two supports spaced apart along the width direction, and the blade assembly is fixedly assembled between the two supports.

7. The waterproof louver according to claim 6, characterized in that, The bracket includes a first abutting structure and a second abutting structure arranged sequentially along its length. The side of the first water-blocking portion away from the first flow guide portion abuts against the first abutting structure, and the side of the second water-blocking portion away from the first flow guide portion abuts against the second abutting structure.

8. The waterproof louver according to claim 7, characterized in that, The bracket further includes a first snap-fit ​​structure, and the blade further includes a second snap-fit ​​structure connected to the side of the second flow guide away from the first flow guide, with the side of the second snap-fit ​​structure facing the first flow guide abutting against the first snap-fit ​​structure.

9. The waterproof louver according to claim 6, characterized in that, The support includes a base and a cover, which are fitted together along the thickness direction and are detachably assembled. The blades abut against the base and the cover on both sides along the thickness direction, respectively.

10. A cabinet, characterized in that, It includes a main body and a waterproof louver as described in any one of claims 1-9, wherein the connecting frame is connected to the main body.

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