Louver device and ventilation equipment

Abstract

The embodiment of the utility model relates to the technical field of ventilation, in particular to a shutter device and ventilation equipment, the shutter device comprises a mounting plate, a filtering piece, a shutter assembly, a first sealing piece and a dustproof net, and the mounting plate is provided with a first opening. The filtering part is arranged at the first opening and covers and is communicated with the first opening. The shutter assembly is arranged on the mounting plate and provided with a second opening and a third opening which are communicated, the second opening and the third opening are oppositely arranged in the first direction, and the second opening is communicated with the filter part. The first sealing piece is arranged between the mounting plate and the shutter assembly. The dustproof net is arranged on the shutter assembly and covers and communicates with the third opening. According to the shutter device, the waterproof and dustproof effects can be improved under the condition that the requirement for ventilation is met, and the structure is simple.

Description

Technical Field

[0001] This utility model relates to the field of ventilation technology, and in particular to a louver device and ventilation equipment. Background Technology

[0002] Direct ventilation equipment typically features louvered ventilation vents at the air inlet. These louvered ventilators ensure ventilation between the internal space of the equipment and the external environment, while also providing ventilation, waterproofing, and dustproofing. Current louvered ventilation devices are usually single-layered protective louvers, which offer some waterproofing and dustproofing, but their effectiveness is not significant. Utility Model Content

[0003] In view of the above problems, the present invention provides a louver device and ventilation equipment, which overcomes or at least partially solves the above problems.

[0004] According to one aspect of the present invention, a louver device is provided, including a mounting plate, a filter element, a louver assembly, a first sealing element, and a dustproof screen. The mounting plate has a first opening. The filter element is disposed in the first opening, covering and communicating with the first opening. The louver assembly is disposed on the mounting plate, and the louver assembly has a communicating second opening and a third opening, which are arranged opposite to each other in a first direction. The second opening communicates with the filter element. The first sealing element is disposed between the mounting plate and the louver assembly. The dustproof screen is disposed on the louver assembly, covering and communicating with the third opening.

[0005] In some embodiments, the louver device further includes at least one pressure plate, one end of which is fixed to the louver assembly, and the other end of which abuts against the surface of the dustproof net away from the louver assembly, so that the dustproof net is attached to the louver assembly.

[0006] In some embodiments, the louver device further includes a support frame fixed to the louver assembly, the support frame having a receiving cavity and a fourth opening. The bottom portion of the dustproof net passes through the fourth opening and is received in the receiving cavity, the support frame supporting the bottom of the dustproof net in a preset position through the receiving cavity.

[0007] In some embodiments, the louver assembly includes a housing, a first louver, and a second louver. The housing encloses an installation space, and the first and second louvers are disposed in the installation space. The second opening, the first louver, the second louver, and the third opening are sequentially connected.

[0008] In some embodiments, the housing is provided with an inclined plate, which is located below the first louver and the second louver and communicates with the mounting space, and one end of the inclined plate extending downward communicates with the second opening.

[0009] In some embodiments, the first louver includes a plurality of first louver units arranged in a second direction, with a predetermined gap between adjacent first louver units to form a first ventilation channel. The second louver includes a plurality of second louver units arranged in the second direction, with a predetermined gap between adjacent second louver units to form a second ventilation channel. The plurality of first ventilation channels and the plurality of second ventilation channels correspond one-to-one and are connected to form a main ventilation channel, with adjacent main ventilation channels being isolated from each other. The second opening, the main ventilation channel, and the third opening are sequentially connected. The second direction is perpendicular to the first direction.

[0010] In some embodiments, a first ventilation duct and a second ventilation duct forming a main ventilation duct are staggered, and the first ventilation duct forming a main ventilation duct is located below the second ventilation duct.

[0011] In some embodiments, the housing includes a first side plate and a second side plate disposed opposite each other in a third direction, wherein the third direction, the second direction, and the first direction are perpendicular to each other. The louver assembly also includes a first side baffle fixed to the first side plate and a second side baffle fixed to the second side plate. Along the second direction, a plurality of first partitions are arrayed on the first side baffle, the plurality of first partitions corresponding one-to-one with a plurality of second ventilation channels and located at one end of the second ventilation channel in the third direction. A plurality of second partitions are arrayed on the second side baffle, the plurality of second partitions corresponding one-to-one with a plurality of second ventilation channels and located at the other end of the second ventilation channel in the third direction.

[0012] In some embodiments, the housing includes a back plate that is located away from the second opening in a first direction. The back plate has a mounting portion for mounting electronic components. The mounting portion has a through hole communicating with a mounting space. A baffle is disposed within the mounting space. The top end of the baffle is fixedly connected to the back plate and located above the through hole. The bottom end of the baffle extends obliquely downward and has a first gap with the back plate. Along the first direction, the baffle covers the through hole.

[0013] In some embodiments, the louver assembly further includes a partition plate disposed in the mounting space, one end of the partition plate being close to the second opening, and the other end of the partition plate extending toward a third opening and passing through the first and second louvers. In a second direction, the partition plate separates the first and second louvers into two parts respectively, and the second direction is perpendicular to the first direction.

[0014] According to one aspect of the present invention, a ventilation device is provided, including the louver device described above.

[0015] The beneficial effects of this utility model embodiment are as follows: Unlike existing technologies, this utility model embodiment provides a louver device including a mounting plate, a filter element, a louver assembly, a first sealing element, and a dustproof net. The mounting plate has a first opening, which assists in installing the louver assembly at the air inlet of a ventilation device. The filter element is disposed at the first opening, covering and communicating with it, reducing the possibility of large particles and liquids entering the ventilation device through the first opening. The louver assembly is disposed on the mounting plate, providing ventilation, waterproofing, and dustproofing. The louver assembly has a communicating second and third opening, which are opposite to each other in a first direction. The second opening communicates with the filter element, allowing external air to enter the ventilation device sequentially through the first opening, the filter element, the second opening, and the third opening. The first sealing element is disposed between the mounting plate and the louver assembly, improving the sealing between them and reducing the possibility of liquid entering the device through the gap between the mounting plate and the louver assembly. The dustproof net is disposed on the louver assembly, covering and communicating with the third opening, reducing the possibility of dust entering the ventilation device through the third opening. The louver device of this application combines a mounting plate, a filter element, a louver assembly, a first sealing element, and a dustproof net. While meeting the ventilation requirements, it can improve the waterproof and dustproof effects, and the structure is relatively simple. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a perspective view of the louver device provided in the embodiments of this application;

[0018] Figure 2 This is an exploded view of the louver device provided in the embodiments of this application;

[0019] Figure 3 This is an exploded view of the louver assembly, the second seal, and the support frame of the louver device provided in the embodiments of this application;

[0020] Figure 4 This is a schematic diagram of the structure of the louver assembly provided in the embodiments of this application;

[0021] Figure 5 This is a schematic diagram of the structure of the louver assembly provided in the embodiments of this application;

[0022] Figure 6 This is a schematic diagram of the structure of the first side baffle and the second louver provided in the embodiments of this application;

[0023] Figure 7 This is a schematic diagram of the structure of the second side baffle and the second louver provided in the embodiments of this application;

[0024] Figure 8 This is a schematic diagram of the structure of the louver assembly, dustproof net, and support frame provided in the embodiments of this application;

[0025] Figure 9 This is a schematic diagram of the structure of the louver assembly provided in the embodiments of this application;

[0026] Figure 10 This is a schematic diagram of the structure of the housing, dustproof net and pressure plate provided in the embodiments of this application.

[0027] The reference numerals in the detailed embodiments are as follows:

[0028] 100. Louver device; 1. Mounting plate; 11. First opening; 2. Filter element; 3. Louver assembly; 31. Housing; 311. Mounting space; 312. Second opening; 313. Third opening; 314. First side plate; 315. Second side plate; 316. Top plate; 317. Bottom plate; 318. Back plate; 3181. Mounting part; 3182. Through hole; 32. First louver element; 321. First louver unit; 3211. First blade; 3212. First connecting part; 3213. Second blade; 322. First ventilation duct; 33. Second louver element; 331. Second louver unit 3311, Third blade; 3312, Second connecting part; 3313, Fourth blade; 332, Second ventilation duct; 34, Main ventilation duct; 35, Inclined plate; 36, First side baffle; 361, First partition; 37, Second side baffle; 371, Second partition; 38, Baffle; 39, Isolation plate; 4, First sealing element; 5, Dustproof net; 6, Pressure plate; 61, First pressure part; 62, Second pressure part; 63, Third pressure part; 7, Support frame; 71, Receiving cavity; 72, Fourth opening; 73, Guide part; 8, Second sealing element; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0031] Direct ventilation equipment typically features louvered ventilation vents at the air inlet. These louvered ventilators ensure ventilation between the internal space of the equipment and the external environment, while also providing ventilation, waterproofing, and dustproofing. Current louvered ventilation devices are usually single-layered protective louvers, which offer some waterproofing and dustproofing, but their effectiveness is not significant.

[0032] The louver device of this application combines a mounting plate, a filter element, a louver assembly, a first sealing element, and a dustproof net. While meeting ventilation requirements, it improves waterproof and dustproof performance, and its structure is relatively simple. To facilitate the reader's understanding of the inventive concept of this utility model, the specific structure of the louver device is described below:

[0033] Please see Figure 1 and Figure 2 The louver device 100 includes a mounting plate 1, a filter element 2, a louver assembly 3, a first sealing element 4, and a dustproof net 5. The mounting plate 1 has a first opening 11. The mounting plate 1 can assist the louver assembly 3 in being installed at the air inlet of the ventilation equipment, or the mounting plate 1 can be a side plate or door panel of the ventilation equipment. The first opening 11 is the ventilation port of the ventilation equipment. The louver device 100 is fixed to the mounting plate 1 and cooperates with the first opening 11 to assist the ventilation of the ventilation equipment. The filter element 2 is disposed in the first opening 11, covering and communicating with the first opening 11. The filter element 2 can reduce the possibility of large particulate impurities and liquids entering the ventilation equipment through the first opening 11. Louver assembly 3 is mounted on mounting plate 1. Louver assembly 3 provides ventilation, waterproofing, and dustproofing. Louver assembly 3 has a communicating second opening 312 and a third opening 313, which are positioned opposite each other in the first direction X. The second opening 312 connects to filter element 2. External air can sequentially enter the ventilation equipment through the first opening 11, filter element 2, second opening 312, and third opening 313 (e.g., ...). Figure 2(As indicated by the arrow). The first seal 4 is disposed between the mounting plate 1 and the louver assembly 3, which can improve the sealing between the mounting plate 1 and the louver assembly 3 and reduce the possibility of liquid entering the equipment through the gap between the mounting plate 1 and the louver assembly 3. The dustproof net 5 is disposed on the louver assembly 3, covering and connecting the third opening 313, which can reduce the possibility of dust entering the ventilation equipment through the third opening 313. The louver device 100, combining the mounting plate 1, filter 2, louver assembly 3, first seal 4 and dustproof net 5, can improve waterproof and dustproof effects while meeting ventilation requirements, and the structure is relatively simple.

[0034] It should be noted that the louver device 100 is installed at the air inlet of the ventilation equipment, so the first opening 11 faces outward from the ventilation equipment and the third opening 313 faces inward from the ventilation equipment.

[0035] In some embodiments, the filter element 2, the louver assembly 3, and the dust filter 5 are arranged sequentially in the first direction X. Gas outside the ventilation equipment can enter the ventilation equipment through the filter element 2, the louver assembly 3, and the dust filter 5 in sequence (e.g., Figure 2 (As indicated by the arrow) This can improve the waterproof and dustproof effect of the louver device by 100%.

[0036] In some embodiments, the filter element 2 can be a metal mesh or filter paper. In some embodiments, the filter element 2 is a wire mesh, and the filter element 2 can be installed on the mounting plate 1 by means of screw fixing, bonding, or welding, without specific limitations.

[0037] In some embodiments, please refer to Figure 2 and Figure 3 The louver assembly 3 includes a housing 31, a first louver element 32, and a second louver element 33. The housing 31 encloses an installation space 311. The housing 31 has a second opening 312 and a third opening 313 communicating with the installation space 311. The first louver element 32 and the second louver element 33 are disposed in the installation space 311, and the second opening 312, the first louver element 32, the second louver element 33, and the third opening 313 are sequentially connected. The first louver element 32 and the second louver element 33 can provide ventilation, waterproofing, and dustproofing. The combination of the first louver element 32 and the second louver element 33 can improve the waterproofing and dustproofing effect of the louver device 100.

[0038] In some embodiments, the first seal 4 is disposed between the mounting plate 1 and the housing 31, which can improve the sealing performance between the mounting plate 1 and the housing 31 and reduce the possibility of liquid entering the device through the gap between the mounting plate 1 and the housing 31. In some embodiments, the first seal 4 is disposed around the second opening 312 to improve the sealing effect of the first seal 4 between the mounting plate 1 and the housing 31. In some embodiments, the first seal 4 can be a waterproof rubber strip, and the material of the first seal 4 can be rubber or metal.

[0039] In some embodiments, the housing 31 includes a top plate 316, a first side plate 314, a bottom plate 317, and a second side plate 315 connected in sequence. The top plate 316 and the bottom plate 317 are disposed opposite each other in the second direction Y, and the first side plate 314 and the second side plate 315 are disposed opposite each other in the third direction Z. The top plate 316, the first side plate 314, the bottom plate 317, and the second side plate 315 together enclose an installation space 311. The third direction Z, the second direction Y, and the first direction X are all perpendicular to each other.

[0040] In some embodiments, the housing 31 is fixed to the mounting plate 1 by the engagement of screws and nuts. There can be multiple screws and nuts, which surround the second opening 312 to enhance the stability of the housing 31.

[0041] In some embodiments, please refer to Figure 3 and Figure 4 The first louver 32 includes a plurality of first louver units 321 arranged in the second direction Y. A preset gap is formed between two adjacent first louver units 321 to form a first ventilation channel 322. The second louver 33 includes a plurality of second louver units 331 arranged in the second direction Y, which is perpendicular to the first direction X. A preset gap is formed between two adjacent second louver units 331 to form a second ventilation channel 332. The plurality of first ventilation channels 322 and the plurality of second ventilation channels 332 correspond one-to-one and are connected to form a main ventilation channel 34. Two adjacent main ventilation channels 34 are isolated from each other. The second opening 312, the main ventilation channel 34 and the third opening 313 are connected in sequence. The plurality of main ventilation channels 34 facilitate the flow of gas between the second opening 312, the main ventilation channel 34 and the third opening 313, which can enhance the ventilation effect of the louver device 100.

[0042] In some embodiments, a plurality of first louver units 321 and a plurality of second louver units 331 are abutted one-to-one to isolate two adjacent main ventilation ducts 34, thereby reducing the possibility of cross-flow of airflow within the two adjacent main ventilation ducts 34 and improving the stability of airflow within the main ventilation ducts 34.

[0043] In some embodiments, the first ventilation duct 322 and the second ventilation duct 332 forming a main ventilation duct 34 are staggered. This staggered distribution means that the connection points of the first ventilation duct 322 and the second ventilation duct 332 are not perfectly aligned, exhibiting a certain angle or distance difference. This staggered distribution can improve dust and water resistance. The first ventilation duct 322 forming the main ventilation duct 34 is located below the second ventilation duct 332. The main ventilation duct 34 can form a steep slope structure, increasing the difficulty for impurities and liquids from the second opening 312 to enter the installation space 311.

[0044] In some embodiments, the two ends of the first louver unit 321 are respectively fixed to the first side plate 314 and the second side plate 315 by rivets, so that the first louver unit 321 is firmly attached to the housing 31. The two ends of the second louver unit 331 are respectively fixed to the first side plate 314 and the second side plate 315 by rivets, so that the second louver unit 331 is firmly attached to the housing 31. In some embodiments, the abutting first louver unit 321 and the second louver unit 331 are fixed by rivets to improve the stability of the relative position of the first ventilation duct 322 and the second ventilation duct 332 forming a main ventilation duct 34.

[0045] In some embodiments, the first louver unit 321 includes a first blade 3211, a first connecting portion 3212, and a second blade 3213 connected in sequence by bending, which can improve the dustproof and waterproof effect. The first blade 3211 is close to the second opening 312 to prevent impurities and liquids from entering the first ventilation duct 322. The second louver unit 331 includes a third blade 3311, a second connecting portion 3312, and a fourth blade 3313 connected in sequence by bending, with the third blade 3311 abutting against the second blade 3213.

[0046] In some embodiments, please refer to Figure 5 A ramp 35 is provided on the housing 31. The ramp 35 is located below the first louver 32 and the second louver 33 and communicates with the mounting space 311. One end of the ramp 35 extends downward and communicates with the second opening 312. Liquid in the first louver 32 and the second louver 33 can flow downward to the ramp 35, and the liquid flowing to the ramp 35 can be guided by the ramp 35 to flow out of the second opening 312. In some embodiments, the ramp 35 can be the bottom plate 317 of the housing 31.

[0047] In some embodiments, please refer to Figure 3 , Figure 6 and Figure 7The louver assembly 3 also includes a first side baffle 36 fixed to the first side plate 314 and a second side baffle 37 fixed to the second side plate 315. Along the second direction Y, a plurality of first partitions 361 are arrayed on the first side baffle 36. The plurality of first partitions 361 correspond one-to-one with a plurality of second ventilation channels 332 and are located at one end of the second ventilation channel 332 in the third direction Z. The first partitions 361 can support the second louver unit 331, and at the same time, the first partitions 361 can prevent liquid and dust in the second ventilation channel 332 from entering the gap between the second louver unit 33 and the first side plate 314. Multiple second baffles 371 are arrayed on the second side baffle 37. Each second baffle 371 corresponds one-to-one with a multiple second ventilation duct 332 and is located at the opposite end of the second ventilation duct 332 in the third direction (Z). The second baffles 371 support the second louver unit 331 and prevent liquid and dust from the second ventilation duct 332 from entering the gap between the second louver member 33 and the second side plate 315. The combination of the first baffle 361 and the second baffle 371 enhances the support effect on the second louver unit 331. In some embodiments, the first baffle 361 extends into the second ventilation duct 332 to further support the second louver unit 331 and assist in the positioning of the second louver unit 331 during installation. The second baffle 371 extends into the second ventilation duct 332 to further support the second louver unit 331 and assist in the positioning of the second louver unit 331 during installation. In some embodiments, the first side strip 36 is fixed to the first side plate 314 by rivets, and the second side strip 37 is fixed to the second side plate 315 by rivets.

[0048] In some embodiments, please refer to Figure 8 The housing 31 includes a back plate 318 extending away from the second opening 312 in a first direction X. The back plate 318 has a mounting portion 3181 for mounting electronic components. The mounting portion 3181 has a through hole 3182 communicating with a mounting space 311. A baffle 38 is disposed within the mounting space 311. The top end of the baffle 38 is fixedly connected to the back plate 318 and located above the through hole 3182. The bottom end of the baffle 38 extends obliquely downwards and has a first gap with the back plate 318. In the first direction X, the baffle 38 covers the through hole 3182. The baffle 38 can block dust and liquid, reducing the possibility of dust and liquid in the mounting space 311 entering the ventilation equipment through the through hole 3182. In some embodiments, the baffle 38 is fixed to the back plate 318 by screws and nuts.

[0049] In some embodiments, the number of through holes 3182 can be multiple, and the number of baffles 38 can also be multiple. In the first direction X, one baffle 38 covers a portion of the through holes 3182, and multiple baffles 38 can cover all the through holes 3182.

[0050] In some embodiments, please refer to Figure 3 and Figure 9 The louver assembly 3 also includes a partition plate 39 disposed in the mounting space 311. One end of the partition plate 39 is close to the second opening 312, and the other end of the partition plate 39 extends towards the third opening 313 and passes through the first louver 32 and the second louver 33. Along the second direction Y, the partition plate 39 separates the first louver 32 and the second louver 33 into two parts respectively, and the second direction Y is perpendicular to the first direction X. The airflow in the plurality of first ventilation channels 322 and the plurality of second ventilation channels 332 may flow between each other. The partition plate 39 can isolate the airflow flowing between the plurality of first ventilation channels 322 and the plurality of second ventilation channels 332, which can improve the stability of the airflow. In some embodiments, the two ends of the partition plate 39 are respectively fixed to the first side plate 314 and the second side plate 315 by rivets.

[0051] In some embodiments, please refer to Figure 1 and Figure 10 The louver device 100 further includes at least one pressure plate 6, one end of which is fixed to the louver assembly 3, and the other end of which abuts against the surface of the dustproof net 5 facing away from the louver assembly 3, so that the dustproof net 5 is attached to the louver assembly 3. In some embodiments, one end of the pressure plate 6 is fixed to the housing 31, and the other end of the pressure plate 6 abuts against the surface of the dustproof net 5 facing away from the housing 31, so that the dustproof net 5 is attached to the housing 31. In some embodiments, there are multiple dustproof nets 5, with two adjacent dustproof nets 5 abutting against each other to cover the third opening 313, and one dustproof net 5 is fixed to the housing 31 by a plurality of pressure plates 6. In some embodiments, the pressure plates 6 are fixed to the housing 31 by screws.

[0052] In some embodiments, the pressure plate 6 includes a first pressure portion 61, a second pressure portion 62, and a third pressure portion 63 that are bent and connected in sequence. The first pressure portion 61 is fixed to the housing 31, the second pressure portion 62 abuts against the side wall of the dustproof net 5 to reduce the possibility of the dustproof net 5 moving relative to the housing 31, and the third pressure portion 63 abuts against the surface of the dustproof net 5 away from the housing 31 so that the dustproof net 5 is attached to the housing 31.

[0053] In some embodiments, please refer to Figure 1 and Figure 8The louver device 100 also includes a support frame 7, which is fixed to the louver assembly 3. The support frame 7 is provided with a communicating receiving cavity 71 and a fourth opening 72. In the second direction Y, the bottom portion of the dustproof net 5 passes through the fourth opening 72 and is received in the receiving cavity 71. The support frame 7 supports the bottom of the dustproof net 5 in a preset position through the receiving cavity 71. In some embodiments, the bottom wall of the receiving cavity 71 abuts against the bottom of the dustproof net 5 to further support the dustproof net 5. In some embodiments, the end wall of the fourth opening 72 extends obliquely upward with a guide portion 73, which can guide the bottom of the dustproof net 5 through the fourth opening 72 into the receiving cavity 71. In some embodiments, the support frame 7 is fixed to the housing 31 by screws.

[0054] In some embodiments, please refer to Figure 3 The louver device 100 also includes a second sealing element 8 disposed between the support frame 7 and the louver assembly 3. The second sealing element 8 can improve the sealing performance between the support frame 7 and the louver assembly 3, and can reduce the possibility of liquid entering the ventilation device through the gap between the support frame 7 and the louver assembly 3. In some embodiments, the second sealing element 8 is disposed between the support frame 7 and the housing 31, which can improve the sealing performance between the support frame 7 and the housing 31, and can reduce the possibility of liquid entering the ventilation device through the gap between the support frame 7 and the housing 31. In some embodiments, the second sealing element 8 can be a waterproof rubber strip, and the material of the second sealing element 8 can be rubber or metal.

[0055] This utility model also provides an embodiment of a ventilation device, which includes the above-mentioned louver device 100. The function and structure of the louver device 100 can be referred to the above embodiment, and will not be repeated here.

[0056] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A louver device, characterized in that, include: The mounting plate has a first opening; A filter element is disposed at the first opening, the filter element covering and communicating with the first opening; A louver assembly is disposed on the mounting plate. The louver assembly has a communicating second opening and a third opening. The second opening and the third opening are arranged opposite to each other in a first direction. The second opening communicates with the filter element. A first sealing element is disposed between the mounting plate and the louver assembly; A dustproof net is disposed on the louver assembly, the dustproof net covering and communicating with the third opening.

2. The louver device according to claim 1, characterized in that, The louver device further includes at least one pressure plate, one end of which is fixed to the louver assembly, and the other end of which abuts against the surface of the dustproof net away from the louver assembly, so that the dustproof net is attached to the louver assembly.

3. The louver device according to claim 2, characterized in that, The louver device also includes a support frame, which is fixed to the louver assembly. The support frame is provided with a receiving cavity and a fourth opening. The bottom part of the dustproof net passes through the fourth opening and is received in the receiving cavity. The support frame supports the bottom of the dustproof net in a preset position through the receiving cavity.

4. The louver device according to claim 1, characterized in that, The louver assembly includes a housing, a first louver, and a second louver. The housing encloses an installation space, and the first and second louvers are disposed in the installation space. The second opening, the first louver, the second louver, and the third opening are sequentially connected.

5. The louver device according to claim 4, characterized in that, An inclined plate is provided on the housing. The inclined plate is located below the first louver and the second louver and communicates with the installation space. One end of the inclined plate extends downward and communicates with the second opening.

6. The louver device according to claim 4, characterized in that, The first louver includes a plurality of first louver units arranged in a second direction, with a preset gap between adjacent first louver units to form a first ventilation channel. The second louver includes a plurality of second louver units arranged in a second direction, with a preset gap between adjacent second louver units to form a second ventilation channel. The plurality of first ventilation channels and the plurality of second ventilation channels correspond one-to-one and are connected to form a main ventilation channel. Adjacent two main ventilation channels are isolated from each other. The second opening, the main ventilation channel, and the third opening are sequentially connected. The second direction is perpendicular to the first direction.

7. The louver device according to claim 6, characterized in that, The first ventilation duct and the second ventilation duct forming the main ventilation duct are staggered, and the first ventilation duct forming the main ventilation duct is located below the second ventilation duct.

8. The louver device according to claim 6, characterized in that, The housing includes a first side plate and a second side plate disposed opposite each other in a third direction, wherein the third direction, the second direction and the first direction are perpendicular to each other; The louver assembly further includes a first side baffle fixed to the first side plate and a second side baffle fixed to the second side plate. Along the second direction, a plurality of first partitions are arrayed on the first side baffle, and the plurality of first partitions correspond one-to-one with a plurality of second ventilation channels and are located at one end of the second ventilation channel in the third direction. A plurality of second partitions are arrayed on the second side baffle, and the plurality of second partitions correspond one-to-one with a plurality of second ventilation channels and are located at the other end of the second ventilation channel in the third direction.

9. The louver device according to claim 4, characterized in that, The housing includes a back plate that is remote from the second opening in the first direction; The back plate is provided with a mounting part for mounting electronic components. The mounting part is provided with a through hole communicating with the mounting space. A baffle is provided in the mounting space. The top end of the baffle is fixedly connected to the back plate and located above the through hole. The bottom end of the baffle extends obliquely downward and has a first gap with the back plate. In the first direction, the baffle covers the through hole.

10. The louver device according to claim 4, characterized in that, The louver assembly also includes a partition plate disposed in the installation space, one end of the partition plate being close to the second opening, and the other end of the partition plate extending toward the third opening and passing through the first louver and the second louver. Along the second direction, the partition plate separates the first louver and the second louver into two parts respectively, and the second direction is perpendicular to the first direction.

11. A ventilation device, characterized in that, Includes the louvered device as described in any one of claims 1-10.

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