Waterproof ventilation filter screen group

By designing a waterproof and ventilated filter array, the problem of dust and moisture entering the cabinet under the direct suction method is solved, achieving more efficient waterproofing and heat dissipation, and adapting to a variety of application scenarios.

CN224401907UActive Publication Date: 2026-06-23GUANGDONG PFANNENBERG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG PFANNENBERG TECH CO LTD
Filing Date
2025-06-06
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing ventilation filter arrays, when using direct suction ventilation, can easily draw large particles of dust and moisture from the outside into the cabinet, creating a safety hazard.

Method used

A waterproof and ventilated filter assembly was designed. By setting an air inlet at the lower end of the cover plate, external air enters the air guide cavity and then enters the cabinet through the ventilation surface and the ventilation grille of the bottom plate. Combined with the filter groove, ventilation grille, waterproof guide plate and other structures, the direct intake of external air is avoided, thus improving the waterproof effect.

Benefits of technology

It effectively prevents external dust and moisture from entering the cabinet, extends the life of the filter cotton, improves heat dissipation efficiency, enhances safety, and adapts to different application scenarios.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224401907U_ABST
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Abstract

The utility model relates to the technical field of cabinet heat dissipation discloses a waterproof ventilation filter screen group, including bottom plate and apron, apron sets up in the upper surface of bottom plate, and the upper end of apron is provided with waterproof part, and the lower extreme of apron is provided with air intake, and apron is provided with air -guiding chamber, and air intake is linked together with air -guiding chamber, and the side of apron and bottom plate connection is provided with ventilation surface, and ventilation surface is linked together with air -guiding chamber, and bottom plate is provided with ventilation grating, set up air intake in the lower extreme of apron, and the outside air enters air -guiding chamber by air intake, and then by air -guiding chamber through ventilation surface and flow to bottom plate, flow to the cabinet in through the ventilation grating set up on bottom plate, and then avoid the outside air straight suction and enter the cabinet, effectively carry out waterproof protection to the cabinet.
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Description

Technical Field

[0001] This utility model relates to the field of cabinet heat dissipation technology, and in particular to a waterproof ventilation filter assembly. Background Technology

[0002] Electrical cabinets, server racks, and other electrical equipment often generate significant heat during operation, leading to temperature increases. Excessive heat can accelerate the aging of electrical equipment or even cause direct damage, posing safety hazards. High temperatures can also affect the operating status of electrical equipment, impacting work efficiency or accuracy, causing errors and resulting in losses. Therefore, ventilated filter arrays are typically installed in electrical cabinets, server racks, and other electrical equipment to ensure proper heat dissipation and prevent overheating caused by inadequate heat dissipation from electronic devices.

[0003] Existing ventilation filter assemblies typically use a direct-suction method to draw outside air into the server rack to cool it down. While this method is generally effective at cooling the rack, it can also easily draw in large dust particles. Furthermore, in outdoor racks, during rainy weather or in humid indoor environments, directly drawing in outside air can also bring in moisture or water droplets, creating a safety hazard. Therefore, improvements are needed. Utility Model Content

[0004] The main purpose of this utility model is to propose a waterproof ventilation filter assembly, aiming to provide a ventilation filter assembly with good waterproof effect.

[0005] To achieve the above objectives, this utility model proposes a waterproof and ventilated filter assembly, including a base plate and a cover plate. The cover plate is disposed on the upper surface of the base plate, with a waterproof part at the upper end and an air inlet at the lower end. An air guide cavity is disposed inside the cover plate, and the air inlet is connected to the air guide cavity. A ventilation surface is disposed on the side of the cover plate connected to the base plate, and the ventilation surface is connected to the air guide cavity. A ventilation grille is disposed on the base plate.

[0006] Specifically, a filter groove is provided on the side of the base plate facing the ventilation surface. The filter groove is used to place external filter cotton, and the ventilation grille is located at the bottom of the filter groove.

[0007] Specifically, the ventilation grille of the base plate is provided with at least two sizes of mounting holes, and the external fan is fixed to the outside of the filter tank through the mounting holes.

[0008] Specifically, the filter tank includes a tank body and fasteners. The ventilation grille is disposed on the tank body. An installation strip is provided on the outer side of the tank body. The fasteners are disposed on the installation strip. The installation strip is integrally formed with the tank body, and the installation strip and the tank body are spaced apart from each other.

[0009] Specifically, the air inlet is provided with an air inlet baffle, and multiple air inlet holes are evenly distributed on the air inlet baffle.

[0010] Specifically, the base plate is provided with a snap-fit ​​block, and the cover plate is provided with a snap-fit ​​hole. The base plate is detachably connected to the cover plate by the snap-fit ​​block engaging with the snap-fit ​​hole.

[0011] Specifically, the outer side of the cover plate is provided with an anti-slip part.

[0012] Specifically, multiple water-proof guide plates are evenly distributed on the ventilation surface, and the water-proof guide plates are inclined towards the air inlet.

[0013] This utility model's technical solution involves setting an air inlet at the lower end of the cover plate. External air enters the air guide cavity through the air inlet, then flows through the air guide cavity to the bottom plate via the ventilation surface, and finally flows into the cabinet through the ventilation grille set on the bottom plate. This effectively prevents external air from being directly drawn into the cabinet and provides waterproof protection for the cabinet. Attached Figure Description

[0014] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model.

[0015] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0016] Figure 3 This is the third three-dimensional structural schematic diagram of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the cover plate of this utility model.

[0018] Figure 5 This is one of the three-dimensional structural diagrams of the base plate of this utility model.

[0019] Figure 6 This is the second three-dimensional structural diagram of the base plate of this utility model.

[0020] The reference numerals in the attached drawings include: 10, base plate; 11, filter tank; 12, ventilation grille; 13, mounting hole; 14, fastener; 15, mounting strip; 16, snap-fit ​​block; 20, cover plate; 21, waterproof part; 22, air inlet; 23, anti-slip part; 24, water-proof guide plate; 25, snap-fit ​​hole. Detailed Implementation

[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0024] like Figures 1 to 6 As shown, a waterproof ventilation filter assembly includes a base plate 10 and a cover plate 20. The cover plate 20 is disposed on the upper surface of the base plate 10. A waterproof part 21 is provided at the upper end of the cover plate 20, and an air inlet is provided at the lower end of the cover plate 20. An air guide cavity is provided inside the cover plate 20, and the air inlet is connected to the air guide cavity. A ventilation surface is provided on the side of the cover plate 20 connected to the base plate 10, and the ventilation surface is connected to the air guide cavity. A ventilation grille 12 is provided on the base plate 10. When installing the ventilation filter assembly, first assemble the base plate 10 and the cover plate 20, then connect the base plate 10 to the ventilation module inside the cabinet. External air enters the air guide cavity through the air inlet located at the lower end of the cover plate 20, flows through the air guide cavity to the base plate 10 via the ventilation surface, and enters the cabinet through the ventilation grille 12 set on the base plate 10. The air at the bottom is lower in temperature than the air at the top, which is more conducive to heat dissipation inside the cabinet. At the same time, the air inlet set at the lower end of the cover plate 20 effectively avoids the direct intake of external air, thereby preventing large particles of water vapor from being directly drawn into the cabinet in the case of high ambient humidity, thus improving the waterproof effect of the ventilation filter assembly.

[0025] A filter groove 11 is provided on the side of the base plate 10 facing the ventilation surface. The filter groove 11 is used to place external filter cotton, and the ventilation grille 12 is located at the bottom of the filter groove 11. In this embodiment, the filter cotton is placed in the filter groove 11, which facilitates the filtration of the air entering the cabinet. At the same time, since the air inlet is located at the lower end of the cover plate 20, the entry of external dust and moisture is greatly reduced, effectively improving the service life of the filter cotton.

[0026] The base plate 10 has at least two types of mounting holes 13 at its ventilation grille 12. An external fan is fixed to the outside of the filter tank 11 through these mounting holes 13. In this embodiment, by providing mounting holes 13 of various sizes on the base plate 10, it is easier to connect to different ventilation modules. Depending on the application scenario of the cabinet, its ventilation and heat dissipation requirements differ, thus allowing the ventilation filter assembly to adapt to more application scenarios and connect to different ventilation modules.

[0027] The filter tank 11 includes a tank body and fasteners 14. A ventilation grille 12 is disposed on the tank body. An installation strip 15 is provided on the outer side of the tank body, and the fasteners 14 are disposed on the installation strip 15. The installation strip 15 is integrally formed with the tank body, and the installation strip 15 and the tank body are spaced apart from each other. In this embodiment, the installation strip 15 is provided on the filter tank 11 to facilitate spacing with the tank body and to provide a placement position for the fasteners 14, effectively improving the installation strength of the base plate 10 during installation.

[0028] An air inlet baffle is provided on the air inlet, and multiple air inlet holes 22 are evenly distributed on the air inlet baffle. In this embodiment, an air inlet baffle is provided at the air inlet, and multiple air inlet holes 22 are evenly distributed on the air inlet baffle. External air is introduced through the air inlet holes 22, which can prevent some large floating particles from entering the air guide cavity. At the same time, if water vapor condenses on the waterproof part 21 to form large water droplets and flows downward under the action of gravity, it will be backflowed to the air inlet due to suction. The air inlet holes 22 can increase the surface tension of the water droplets, thereby preventing the water droplets from entering the air guide cavity, thus improving the waterproof effect.

[0029] A snap-fit ​​block 16 is provided on the base plate 10, and a snap-fit ​​hole 25 is provided on the cover plate 20. The base plate 10 is detachably connected to the cover plate 20 through the snap-fit ​​block 16 engaging with the snap-fit ​​hole 25. In this embodiment, the base plate 10 is provided with a snap-fit ​​block 16, and the cover plate 20 is provided with a snap-fit ​​hole 25. The base plate 10 and the cover plate 20 are snapped together through the snap-fit ​​block 16 engaging with the snap-fit ​​hole 25. When it is necessary to separate the base plate 10 and the cover plate 20, a flathead screwdriver can be inserted into the opening reserved in the snap-fit ​​hole 25 at the snap-fit ​​point, and then the flathead screwdriver can be rotated to easily achieve disassembly and separation, thereby improving the user experience of maintenance personnel and improving daily maintenance efficiency.

[0030] An anti-slip part 23 is provided on the outer side of the cover plate 20. In this embodiment, an anti-slip part 23 is provided on the outer side of the cover plate 20 to facilitate the gripping and installation of the entire ventilation filter assembly, thereby improving the stability and safety during installation.

[0031] Multiple waterproof guide plates 24 are evenly distributed on the ventilation surface, and the waterproof guide plates 24 are inclined towards the air inlet. In this embodiment, multiple waterproof guide plates 24 are provided on the ventilation surface. When the humidity in the air is high, when tiny water vapors pass through the air inlet 22 and enter the air guide cavity, they can condense and hang on the waterproof guide plates 24 as they pass through the ventilation surface. When a large amount of water vapor condenses on the waterproof guide plates 24, it forms water droplets that drip off under the action of gravity and move out of the air guide cavity from the air inlet, thereby improving the waterproof effect.

[0032] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A waterproof and ventilated filter assembly, comprising a base plate and a cover plate, characterized in that: The cover plate is set on the upper surface of the base plate. The upper end of the cover plate is provided with a waterproof part, the lower end of the cover plate is provided with an air inlet, and an air guide cavity is provided inside the cover plate. The air inlet is connected to the air guide cavity. A ventilation surface is provided on the side where the cover plate connects to the base plate. The ventilation surface is connected to the air guide cavity. A ventilation grille is provided on the base plate.

2. The waterproof ventilation filter assembly according to claim 1, characterized in that: A filter groove is provided on the side of the base plate facing the ventilation surface. The filter groove is used to place external filter cotton, and the ventilation grille is located at the bottom of the filter groove.

3. A waterproof and ventilated filter assembly according to claim 2, characterized in that: The base plate has at least two sizes of mounting holes at the ventilation grille, and the external fan is fixed to the outside of the filter tank through the mounting holes.

4. A waterproof and ventilated filter assembly according to claim 2, characterized in that: The filter tank includes a tank body and fasteners. The ventilation grille is disposed on the tank body. An installation strip is provided on the outer side of the tank body. The fasteners are disposed on the installation strip. The installation strip is integrally formed with the tank body, and the installation strip and the tank body are spaced apart from each other.

5. A waterproof ventilation filter assembly according to claim 1, characterized in that: The air inlet is equipped with an air inlet baffle, and multiple air inlet holes are evenly distributed on the air inlet baffle.

6. A waterproof ventilation filter assembly according to claim 1, characterized in that: The base plate is provided with a snap-fit ​​block, and the cover plate is provided with a snap-fit ​​hole. The base plate is detachably connected to the cover plate by the snap-fit ​​block engaging with the snap-fit ​​hole.

7. A waterproof ventilation filter assembly according to claim 1, characterized in that: The outer side of the cover plate is provided with an anti-slip part.

8. A waterproof ventilation filter assembly according to claim 1, characterized in that: Multiple water-proof guide plates are evenly distributed on the ventilation surface, and the water-proof guide plates are inclined towards the air inlet.