Waterproof upper air outlet shutter and cabinet

Abstract

The utility model discloses a waterproof upper air outlet shutter and a cabinet. The shutter comprises a frame body and a plurality of blades, the cabinet body comprises two side frames located at the left and right positions. The blades are fixedly arranged in the frame body at preset intervals in the vertical direction, and the left ends and the right ends of the blades are connected with two side frames of the frame body; each blade comprises a first guide plate inclining downwards from back to front and a second guide plate arranged on the upper surface of the first guide plate and inclining upwards from back to front, and the second guide plate is suitable for guiding air flow to turn upwards. The shutter can guide air flow to be discharged obliquely and upwards, prevents hot air from being accumulated on the lower side of the cabinet, and can play a waterproof role at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of louvers, and in particular to a waterproof top air outlet louver and a cabinet. Background Art

[0002] The electronic devices inside existing electrical cabinets generate a lot of heat, and need to be dissipated through specially designed heat dissipation structures to prevent the devices from being damaged due to excessive heat generation. Generally speaking, a fan is installed inside the electrical cabinet, which can absorb cold air from the outside. The cold air takes away the heat after passing through the heat-generating electronic devices and is discharged through the air outlet duct. In the process, since the air outlet duct is connected to the outside, sand, rainwater, etc. from the outside can easily enter the cabinet through the air outlet, which can easily cause damage to the internal devices or further aggravate the heating. For this reason, existing electrical cabinets will be equipped with shutters at the position of the air outlet, and the blades of the shutters can prevent sand and rainwater from entering the cabinet.

[0003] The current cabinet air outlet louvers need to be able to prevent rain from entering the cabinet or gathering on the louvers, so the louvers are all tilted downward, so that when rain hits the louvers, it can flow away along the tilt angle of the louvers. However, this waterproof structure of the louvers will cause the air outlet direction of the cabinet to be tilted downward when the cabinet is out, and the hot air will accumulate at the bottom of the cabinet, which is not conducive to the internal fan of the cabinet to inhale cold air, nor is it conducive to the natural circulation of hot and cold air, which will cause the heat dissipation efficiency of the cabinet to decrease. Summary of the invention

[0004] The object of the present invention is to overcome the above-mentioned defects or problems existing in the background technology and to provide a waterproof upper air outlet louver and a cabinet, wherein the louver can improve the heat dissipation efficiency of the cabinet.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] Technical solution 1: A waterproof top air-outlet louver, comprising: a frame body, comprising two side frames located at left and right positions; a plurality of blades, each of the blades being fixedly arranged in the frame body at a preset distance in the up and down direction, and both left and right ends of the blades being connected to the two side frames of the frame body; each of the blades comprising a first guide plate inclined downward from back to front, and a second guide plate arranged on the upper surface of the first guide plate and inclined upward from back to front, the second guide plate being suitable for guiding the wind flow to turn upward.

[0007] Technical solution 2 based on technical solution 1: a drainage outlet is provided at the lower edge where the second guide plate connects to the first guide plate.

[0008] Technical solution three based on technical solution two: the drain outlet is in the shape of a long strip extending in the left-right direction.

[0009] Technical solution 4 based on technical solution 3: the blade is provided with a plurality of drainage outlets, and the drainage outlets are arranged in sequence along the left-right direction.

[0010] Technical solution five based on technical solutions one to four: also includes a filter element, which is fixedly mounted on the frame and located behind each of the blades, and its projection on the projection plane perpendicular to the front-to-back direction is at least consistent with the setting range of all blades; a first gap is formed between the filter element and each of the blades in the front-to-back direction.

[0011] Technical solution 6 based on technical solution 5: the frame body also includes a rear frame, on which is provided a ventilation hole that passes through the front and back and is suitable for ventilation; a second gap is formed between the rear frame and the filter element in the front-to-back direction.

[0012] Technical solution seven based on technical solution six: the frame body also includes a bottom frame, a rear edge of which is connected to the rear frame and is lower than the vent, and its left and right sides are connected to the two side frames, and the bottom frame is tilted downward from back to front to guide the discharge of foreign objects entering the first gap and the second gap.

[0013] Technical solution eight based on technical solution seven: also includes a protective net, which is arranged on the frame and covers the front opening of the frame; a third gap is formed between each of the blades and the protective net in the front-to-back direction.

[0014] Technical solution nine based on technical solutions six to eight: the blades also include a third guide plate, a fourth guide plate, a fifth guide plate, and a sixth guide plate; the third guide plate extends downward from the front edge of the first guide plate; the fourth guide plate extends upward from the rear edge of the first guide plate; the fifth guide plate is connected to the fourth guide plate and extends forward; the sixth guide plate is connected to the third guide plate and extends backward; among adjacent blades, the fifth guide plate of the blade located below is higher in height than the sixth guide plate of the blade located above.

[0015] In addition, the present invention also provides technical solution ten: a cabinet, comprising: a cabinet body; and the waterproof upper air outlet louver as described in any one of technical solutions one to nine, which is installed on the cabinet body.

[0016] It can be seen from the above description of the present invention that, compared with the prior art, the present invention has the following beneficial effects:

[0017] In technical solution one, a waterproof upper air outlet louver is provided, and a first guide plate and a second guide plate are arranged on the blades, wherein the first guide plate is inclined downward from back to front, and when rain hits the first guide plate, the water flow will flow downward along the first guide plate, thereby achieving the purpose of waterproofing, and at the same time, the second guide plate is inclined upward from back to front, which can guide the air flow to be discharged obliquely upward when it is sent out from the louver, thereby avoiding the accumulation of hot air on the lower side of the cabinet; at the same time, the second guide plate can also prevent rain from splashing upward from the ground and entering the inside of the louver.

[0018] In technical solution two, a drain outlet is provided on the blade. When rainwater falls between the first guide plate and the second guide plate, the rainwater will flow away from the drain outlet to avoid rainwater gathering on the louver. At the same time, the drain outlet is provided at the lower edge of the second guide plate. Even if there is only a small amount of rainwater, it can be discharged from the drain outlet. When guiding the air out, only a small amount of wind will leak from the drain outlet, thereby ensuring that the hot air is discharged upward normally.

[0019] In technical solution three, the drain outlet is set to be a long strip extending left and right. Compared with the hole-shaped drain outlet, it has a larger water flow area. Compared with the long strip drain outlet extending up and down, it can quickly discharge when there is a small amount of water; at the same time, the air flow area is small, and a large amount of hot air will not leak from the drain outlet.

[0020] In technical solution 4, multiple drainage outlets are provided to improve drainage efficiency. When there are certain locations where water is easily accumulated due to processing accuracy problems, sufficient drainage can also be achieved.

[0021] In technical solution five, a filter is provided to prevent sand, stones and other debris from the outside from entering the cabinet; at the same time, a first gap is provided between the filter and each blade to increase the distance from the blade to the filter, so that the filter itself is not easily splashed by rain.

[0022] In technical solution six, the frame includes a rear frame, and the vents on the rear frame can be connected to the internal air duct of the cabinet. At the same time, a second gap is formed between the rear frame and the filter element to further reduce the sand, debris, rainwater, etc. that pass through the filter element and splash onto the rear frame.

[0023] In technical solution seven, the frame body includes a bottom frame, which is arranged at an angle to facilitate the discharge of sand, stones, debris, etc. that enter the first gap and the second gap; at the same time, the rear edge of the bottom frame is lower than the vent on the rear frame to prevent the accumulated water on the bottom frame from overflowing into the cabinet through the vent.

[0024] In Technical Solution 8, a protective net is set to prevent large foreign objects from entering the cabinet. At the same time, a third gap is set between the protective net and the blades. The third gap forms an air passage, which can converge the air outlet of the louvers, improve the ventilation effect, and prevent the blades from blocking the mesh on the protective net, causing increased wind resistance.

[0025] In technical solution nine, a third and a fourth guide plate are arranged on the blade to cooperate with the first guide plate. The third guide plate can guide the water to flow downward and prevent the inclined rain from hitting the first guide plate of the next blade. The fourth guide plate can prevent the rain from hitting the first guide plate and rebounding backward into the louver; the fifth and the sixth guide plates are arranged on the blade to cooperate with the first, second, third and fourth guide plates to form an "S"-shaped air outlet channel, which ensures smooth air outlet. At the same time, the rain is not easy to rebound into the louver and can also prevent water vapor from entering.

[0026] In technical solution ten, a cabinet is provided. Due to the adoption of the above-mentioned waterproof upper air outlet louvers, the cabinet can not only provide waterproof protection for internal electronic components, but also discharge hot air upwards to improve heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic side cross-sectional view of the waterproof upper air outlet louver provided in Example 1 of the utility model;

[0029] Figure 2 A schematic diagram of the structure of the waterproof upper air outlet louver provided in Example 2 of the utility model;

[0030] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0031] Figure 4 A schematic side cross-sectional view of the waterproof upper air outlet louver provided in Example 2 of the utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the cabinet provided in Example 3 of the utility model.

[0033] Description of main reference numerals:

[0034] Shutter 1; frame 2; side frame 3; blade 4; first guide plate 5; second guide plate 6; drain port 7; third guide plate 8; fourth guide plate 9; fifth guide plate 10; sixth guide plate 11; filter element 12; first gap 13; rear frame 14; vent 15; second gap 16; bottom frame 17; cabinet 18; sand discharge hole 19; air outlet channel 20; protective net 21. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0037] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0038] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0039] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0040] Example 1

[0041] Embodiment 1 of the present invention provides a waterproof upper air outlet louver 1, referring to Figure 1 , Figure 1 A side cross-sectional schematic diagram of the louver 1 is shown, where the side cross-sectional schematic diagram is formed by taking a vertical side cross-section of the louver 1 with the air outlet surface of the louver 1 being the front and the air inlet surface being the rear, and the blades 4 in the louver 1 being arranged in an up-and-down direction.

[0042] Reference Figure 1 The shutter 1 provided in this embodiment includes a frame 2 and a plurality of blades 4.

[0043] The frame 2 includes side frames 3, a rear frame 14 and a bottom frame 17. The side frames 3 are located on the left and right sides, the rear frame 14 is located on the rear side, and the bottom frame 17 is located at the bottom. Figure 1 Although not shown, as a conventional component of the louver 1, its shape and function are predictable. It is easy to understand that the frame 2 surrounds and forms a frame structure, and the blades 4 of the louver 1 are installed on the inner side of the frame structure, thereby forming an outlet louver 1 with the blades 4 fixed in position.

[0044] The number of blades 4 of the blind 1 is multiple, and each blade 4 is fixedly arranged in the frame 2 at a preset distance in the up-down direction, and its left and right ends are connected to the two side frames 3 of the frame 2. Each blade 4 includes a first guide plate 5 inclined downward from back to front, and a second guide plate 6 arranged on the upper surface of the first guide plate 5 and inclined upward from back to front.

[0045] Reference Figure 1 The first guide plate 5 is the main body of each blade 4. The first guide plates 5 cooperate to form an air outlet channel 20 between adjacent blades 4. The hot air is transported forward from the rear side of the louver 1. When it reaches the blade 4, it first contacts the first guide plate 5 and is restricted by the lower surface of the upper first guide plate 5 and the upper surface of the lower first guide plate 5, and is discharged along the above-mentioned air outlet channel 20. On the air outlet path, the hot air will encounter the second guide plate 6, which is inclined upward and located below the first guide plate 5. The hot air will be guided by the second guide plate 6 and turned upward, thereby realizing the upper air outlet of the louver 1.

[0046] At the same time, when it rains, rainwater will hit the first guide plate 5 of the shutter 1. Since the first guide plate 5 is inclined downward, the rainwater will flow along the first guide plate 5, thereby achieving the purpose of waterproofing.

[0047] The waterproof upper air outlet louver 1 provided in this embodiment guides the air outlet direction upward by setting a first guide plate 5 and a second guide plate 6, thereby avoiding the hot air from being discharged downward. At the same time, the second guide plate can also prevent rainwater from splashing upward from the ground and entering the interior of the louver 1.

[0048] Example 2

[0049] Embodiment 2 of the present invention provides a waterproof upper air outlet louver 1, referring to Figure 2 , based on Example 1, many improvements are made thereto.

[0050] Reference Figure 2 and Figure 3 The blade 4 further includes a third guide plate 8, a fourth guide plate 9, a fifth guide plate 10 and a sixth guide plate 11. Figure 4The third guide plate 8 extends downward from the front edge of the first guide plate 5, and the fourth guide plate 9 extends upward from the rear edge of the first guide plate 5; the fifth guide plate 10 is connected to the fourth guide plate 9 and extends forward; the sixth guide plate 11 is connected to the third guide plate 8 and extends backward.

[0051] Specifically, in Figure 4 In the embodiment shown, each blade 4 is matched with a plurality of guide plates to form an "S" shape with left and right mirror images in the side view section. The first guide plate 5 is used as the main body of each blade 4, and the inclination angle of the first guide plate 5 is approximately 45 degrees compared to the front and rear horizontal direction. The lower edge of the fourth guide plate 9 is connected to the rear edge of the first guide plate 5 and extends vertically upward. The rear edge of the fifth guide plate 10 is connected to the upper edge of the fourth guide plate 9, and the fifth guide plate 10 is inclined forward and downward, and its inclination angle is approximately the same as that of the first guide plate 5. The upper edge of the third guide plate 8 is connected to the front edge of the first guide plate 5 and extends vertically downward. The front edge of the sixth guide plate 11 is connected to the lower edge of the third guide plate 8, and the sixth guide plate 11 is inclined backward and downward, and its inclination angle is also approximately 45 degrees compared to the front and rear horizontal direction. The guide plates of the blade 4 can be connected by welding, or the part of each blade 4 except the second guide plate 6 can be integrally formed, and then the second guide plate 6 is welded to the first guide plate 5.

[0052] It should be noted that in the blinds 1, adjacent blades 4 are arranged in a staggered manner. The staggered arrangement here means that among the adjacent blades 4, the fifth guide plate 10 of the blade 4 located at the bottom is higher in height direction than the sixth guide plate 11 of the blade 4 located at the top. Figure 4 An "S"-shaped air outlet channel 20 is formed between two adjacent blades 4. The hot air first enters between the first guide plate 5 of the upper blade 4 and the fifth guide plate 10 of the lower blade 4, then hits the third guide plate 8 and the sixth guide plate 11 of the upper blade 4 and turns to the fourth guide plate 9 of the lower blade 4, then turns to the first guide plate 5 of the lower blade 4, and finally is guided by the second guide plate 6, and the hot air is discharged obliquely upward.

[0053] Reference Figure 3, a drain port 7 is provided at the lower edge where the second guide plate 6 is connected to the first guide plate 5. The drain port 7 can be provided on the second guide plate 6, or on both the first guide plate 5 and the second guide plate 6. For ease of setting, the drain port 7 is provided on the second guide plate 6 in this embodiment. Among them, the drain port 7 is in the shape of a long strip extending in the left-right direction, and each blade 4 is provided with a plurality of drain ports 7, which are arranged in sequence in the left-right direction. The long strip-shaped drain port 7 can quickly drain rainwater before rainwater accumulates, and because the size of the drain port 7 in the height direction is very small, the amount of air leaked will not be large. Providing a plurality of drain ports 7 can improve the drainage efficiency, and can also fully drain water when there is a sinking at some position where water flow is easily accumulated due to processing accuracy problems.

[0054] When the shutter 1 is actually used, the hot air will flow along Figure 4 The rainwater is discharged outward along the path shown. At the same time, when it rains, the rainwater will hit the first guide plate 5 of the blade 4. The rainwater that falls on the front side of the second guide plate 6 can flow directly along the first guide plate 5 and the third guide plate 8. The rainwater that falls on the rear side of the second guide plate 6 will gather between the second guide plate 6 and the first guide plate 5. This part of the rainwater will flow out from the drain port 7. At the same time, part of the rainwater will be splashed by the first wire plate onto the fourth guide plate 9. At this time, the fourth guide plate 9 will prevent the rainwater from falling into the inside of the blind 1. The fifth guide plate 10 can also further prevent the rainwater from splashing. In addition, when the rainwater splashes from the ground and hits the blind 1 in an oblique upward manner, the second guide plate 6 will prevent part of the rainwater from splashing into the inside of the blind 1, and cooperate with the "S"-shaped air outlet channel 20 to ensure that the splashed rainwater will not fall into the inside of the blind 1.

[0055] Further, refer to Figure 4 The left and right side frames 3 of the shutter 1 are long plate-shaped members with a small width, and the rear frame 14 of the shutter 1 is a flat member, and a vent 15 that passes through the front and back and is suitable for ventilation is provided on the rear frame 14. When the shutter 1 is installed on the cabinet 18, the vent 15 can be connected to the air duct inside the cabinet 18. The bottom frame 17 is also a flat member, and its rear edge is connected to the lower edge of the rear frame 14, and its left and right sides are connected to the two side frames 3.

[0056] Reference Figure 4 A filter 12 is provided in the blind 1. The filter 12 is fixedly mounted on the frame 2 and is located behind each blade 4, and its projection on the projection plane perpendicular to the front-back direction is at least consistent with the setting range of all blades 4. A first gap 13 is formed between the filter 12 and each blade 4 in the front-back direction.

[0057] Specifically, a mounting bracket can be provided inside the blind 1, the mounting bracket extends from top to bottom and is connected to the frame 2 of the blind 1, and the filter 12 can be mounted and fixed on the mounting bracket. The above-mentioned "projection of the filter 12 on the projection plane perpendicular to the front-back direction is at least consistent with the setting range of all blades 4" means that the coverage range of the filter 12 can be consistent with the range of all blades 4. Only in this way can the filter 12 play a better filtering role and prevent the entry of sand, gravel, and debris from the outside. At the same time, the formation of the first gap 13 can increase the distance between the blade 4 and the filter 12. Even if some rainwater and sand and gravel pass through the blade 4, due to the large distance between the blade 4 and the filter 12, these debris will fall along the first gap 13 to the position of the bottom frame 17. In addition, the material of the filter 12 can be air-permeable filter cotton or gauze.

[0058] At the same time, refer to Figure 4 A second gap 16 is formed between the filter element 12 and the rear frame 14 in the front-to-rear direction. The second gap 16 can also increase the distance between the filter element 12 and the vent 15. Even if some rainwater and sand and gravel pass through the blades 4 and the filter element 12, due to the large distance between the rear frame 14 and the filter element 12, these debris will fall along the second gap 16 to the position of the bottom frame 17.

[0059] Reference Figure 3 and Figure 4 The bottom frame 17 is set to be tilted downward from back to front, so that it can guide the foreign matter entering the first gap 13 and the second gap 16 to be discharged. Among them, the installation bracket of the filter element 12 and the third guide plate 8 of the bottom blade 4 are provided with a sand discharge hole 19, which is formed by the notch on the lower edge of these plates and the bottom frame 17. Sand, rainwater, etc. can be discharged from the sand discharge hole 19 along the bottom frame 17 to the outside of the blind 1. At the same time, referring to Figure 4 The rear edge of the bottom frame 17 is lower than the vent 15 . Even if water accumulates on the bottom frame 17 , the water will not overflow into the cabinet 18 through the vent 15 because the bottom frame 17 is lower and tilted downward.

[0060] In addition, refer to Figure 4A protective net 21 is provided on the front side of the blind 1. The protective net 21 is provided on the frame 2 and covers the front opening of the frame 2. A third gap 22 is formed between each blade 4 and the protective net 21 in the front-to-back direction. Specifically, the protective net 21 can be a metal mesh with a relatively small mesh, which is fixedly installed on the front opening of the frame 2 by welding, riveting, etc., so as to prevent foreign objects from entering the cabinet. At the same time, a third gap 22 is provided between the protective net 21 and the blade 4. The third gap 22 is actually the gap between the third guide plate 8 of the blade 4 and the protective net 21. Since the third guide plate 8 extends downward, if the third guide plate 8 is attached to the protective net 21, the mesh at the corresponding position on the protective net 21 will be blocked, the mesh for ventilation will be reduced, and the wind resistance will be increased when the wind is discharged. Therefore, the third gap 22 is provided to re-collect the wind flow and reduce the wind resistance of the wind discharge.

[0061] Example 3

[0062] The utility model embodiment 3 provides a cabinet 18, referring to Figure 5 The cabinet 18 includes a cabinet body and the waterproof upper air outlet louver 1 provided in Example 1 or Example 2.

[0063] Since the cabinet 18 adopts the above-mentioned waterproof upper air outlet louver 1, it can not only provide waterproof protection for the internal electronic components, but also discharge the hot air upwards to improve the heat dissipation efficiency.

[0064] The description of the above specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation on the protection scope of the present invention. Through the enlightenment of the present invention or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent substitutions or other improvements to the embodiments of the present invention or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the present invention.

Claims

1. A waterproof upper air outlet louver (1), characterized in that: include: A frame body (2), comprising two side frames (3) located at left and right positions; A plurality of blades (4), each of the blades (4) is fixedly arranged in the frame (2) at a preset distance in the vertical direction, and both left and right ends thereof are connected to the two side frames (3) of the frame (2); each of the blades (4) comprises a first guide plate (5) inclined downward from back to front, and a second guide plate (6) arranged on the upper surface of the first guide plate (5) and inclined upward from back to front, wherein the second guide plate (6) is suitable for guiding the wind flow to turn upward.

2. A waterproof upper air outlet louver (1) as claimed in claim 1, characterized in that: A drainage port (7) is provided at the lower edge where the second guide plate (6) is connected to the first guide plate (5).

3. A waterproof upper air outlet louver (1) as claimed in claim 2, characterized in that: The drainage port (7) is in the shape of a long strip extending in the left-right direction.

4. A waterproof upper air outlet louver (1) as claimed in claim 3, characterized in that: The blade (4) is provided with a plurality of drainage openings (7), and the drainage openings (7) are arranged in sequence along the left-right direction.

5. A waterproof upper air outlet louver (1) according to any one of claims 1 to 4, characterized in that: It also includes a filter element (12), which is fixedly mounted on the frame (2) and located behind each of the blades (4), and its projection on a projection plane perpendicular to the front-to-back direction is at least consistent with the setting range of all the blades (4); a first gap (13) is formed between the filter element (12) and each of the blades (4) in the front-to-back direction.

6. A waterproof upper air outlet louver (1) as claimed in claim 5, characterized in that: The frame body (2) further comprises a rear frame (14) on which a ventilation opening (15) is provided which is through-through from front to back and suitable for ventilation; a second gap (16) is formed between the rear frame (14) and the filter element (12) in the front-to-back direction.

7. A waterproof upper air outlet louver (1) as claimed in claim 6, characterized in that: The frame body (2) further comprises a bottom frame (17), the rear edge of which is connected to the rear frame (14) and is lower than the vent (15), and the left and right sides of which are connected to the two side frames (3), and the bottom frame (17) is inclined downward from the back to the front to guide the foreign matter entering the first gap (13) and the second gap (16) to be discharged.

8. A waterproof upper air outlet louver (1) as claimed in claim 7, characterized in that: It also comprises a protective net (21), which is arranged on the frame (2) and covers the front opening of the frame (2); a third gap (22) is formed between each blade (4) and the protective net (21) in the front-to-back direction.

9. A waterproof upper air outlet louver (1) according to any one of claims 6 to 8, characterized in that: The blade (4) further comprises a third guide plate (8), a fourth guide plate (9), a fifth guide plate (10), and a sixth guide plate (11); the third guide plate (8) extends downward from the front edge of the first guide plate (5); the fourth guide plate (9) extends upward from the rear edge of the first guide plate (5); the fifth guide plate (10) is connected to the fourth guide plate (9) and extends forward; the sixth guide plate (11) is connected to the third guide plate (8) and extends backward; among adjacent blades (4), the fifth guide plate (10) of the blade (4) located below is higher in height than the sixth guide plate (11) of the blade (4) located above.

10. A cabinet (18), characterized in that: include: Cabinet; and The waterproof upper air outlet louver (1) as described in any one of claims 1 to 9 is installed on the cabinet.

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