Ventilation waterproof and dustproof shutter structure and outdoor cabinet
By combining the design of grilles, louvers, and dustproof nets, the problem of poor waterproof and dustproof performance of outdoor cabinet louvers is solved, achieving good ventilation and reduced energy consumption.
Patent Information
- Application Number
- CN202423087257.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-13
AI Technical Summary
The existing outdoor cabinets with louvered structures have poor waterproof and dustproof performance, resulting in high internal temperatures, which affects the equipment's performance and lifespan, and also requires the addition of a forced exhaust fan, increasing costs.
It adopts a composite structure of grille, louver structure and dustproof net. The grille weakens the kinetic energy of rainwater, the louver fan body and hook block rainwater and sand, the dustproof net blocks dust, the filter layer filters impurities, the slope and drain outlet discharge rainwater, and the louver fan body guides the hot airflow.
It achieves a balance between waterproof and dustproof performance and ventilation performance, reducing heat accumulation inside the equipment and lowering energy consumption and operating costs.
Smart Images
Figure CN223942230U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of protective louvers for outdoor instrument cabinets, and in particular to a ventilated, waterproof and dustproof louver structure and an outdoor cabinet. Background Technology
[0002] Outdoor enclosures, cabinets, or box-type precision instruments and electrical cabinets need to operate in harsh outdoor weather conditions for extended periods. Therefore, they require high levels of waterproof and dustproof performance from their outer casings. Ideally, a completely sealed structure provides the best protection for the internal instruments. However, for high-power equipment requiring fan-assisted ventilation, it is necessary to consider the permeability of the casing to ensure equipment performance, extend its service life, and improve the stability of the internal thermal environment. Therefore, louvered structures are required on the outer casing. Existing louvered structures used in outdoor enclosures typically prioritize waterproof, dustproof, and airtight design. Poor airtightness of the louvers leads to high temperatures and even harsh conditions inside many equipment cabinets, significantly impacting equipment performance and lifespan. In addition to the cooling fans within the equipment itself, additional forced-draft fans are needed to effectively remove heat, unnecessarily increasing operating costs. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a simple structure that can simultaneously achieve waterproof and dustproof effects and ventilation performance, as well as a ventilated, waterproof and dustproof louver structure and outdoor cabinet.
[0004] The technical solution adopted by this utility model is as follows: This utility model includes a frame and an inner cavity formed on the frame. A louver structure and a dustproof net are arranged sequentially along the outer side of the frame in the inner cavity. The louver structure includes a plurality of vertically downward equidistant louver blades. The plurality of louver blades are arranged obliquely downward toward the outside of the frame, and a lower hook is provided at the outer end of the inner cavity, and an upper hook is provided at one end of the dustproof net. A gap is left between the inner sides of the upper hook and the lower hook between two adjacent sets of louver blades.
[0005] Furthermore, the lower hook is set vertically downward, and the upper hook has a bent end that is parallel to the louvered fan body at its end.
[0006] Furthermore, the louvered fan body is tilted downwards at an angle of 15 to 45° towards the outside of the frame.
[0007] Furthermore, the distance between two adjacent sets of louvered fan bodies is greater than 10mm.
[0008] Furthermore, a grille is also provided in the inner cavity, and the grille is disposed on the outside of the louver structure corresponding to the frame.
[0009] Furthermore, the lower end of the inner cavity is provided with an inclined surface, which slopes outward and downward along the inside of the frame.
[0010] Furthermore, a filter layer is provided between the dustproof net and the louver structure, and the filter layer is made of mesh filter cotton.
[0011] Furthermore, drainage outlets are provided at both ends of the bottom of the dustproof net between it and the inclined surface.
[0012] Finally, an outdoor cabinet is also provided, including a main cabinet body and the aforementioned ventilation, waterproof and dustproof louver structure, wherein the ventilation, waterproof and dustproof louver structure is disposed on any one side wall of the main cabinet body.
[0013] Compared with existing technologies, the advantages of this utility model are as follows: This utility model adopts a novel louver structure, namely a composite structure of grille, louver structure, and dustproof net, achieving waterproof and dustproof functions while ensuring ventilation of the outdoor enclosure. Firstly, rainwater and sand are weakened by the grille, and then blocked from entering the frame by the lower hook. A small amount of rainwater and sand carried in by the wind is also cut off and blocked by the upper hook. In extreme cases, even if a very small amount of rainwater and sand enters the inner cavity, it will be blocked by the dustproof net and flow out from the drain outlet, exiting the enclosure along the inclined surface. Because the upper hook end of this utility model has a bend parallel to the louver body, it guides the hot airflow emitted from the internal instruments, helping it to exit the enclosure smoothly and ensuring the equipment's breathability. Therefore, this utility model has a simple structure and can simultaneously achieve waterproof and dustproof effects and ventilation performance. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is an exploded side view of the present invention.
[0016] Figure 3 This is an exploded view of the axial side structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the louvered fan body;
[0018] Figure 5 This is a bottom view of the inner structure of this utility model;
[0019] Figure 6 This is a schematic diagram of the overall structure of the outdoor cabinet. Detailed Implementation
[0020] like Figures 1 to 6As shown, this utility model includes a frame 1 and an inner cavity 2 formed on the frame 1. Within the inner cavity 2, a grille 5, a louvered structure 3, and a dustproof net 4 are sequentially arranged along the outer edge of the frame 1. Considering that water has greater viscosity and surface tension than air, the grille 5 adopts a square structure, with each square structural unit measuring 10mm*10mm. This effectively weakens the momentum of rainwater while minimizing air resistance, thus effectively preventing rainwater from entering while ensuring air permeability. The louvered structure 3 includes several vertically downward-facing louvered fan bodies 30 arranged at equal intervals. These louvered fan bodies 30 are angled downwards towards the outside of the frame 1. In this utility model, the angle at which the louvered fan bodies 30 are angled downwards towards the outside of the frame 1 is 15-45°, adjustable according to the actual usage scenario. An appropriate angle helps promote ventilation. The louvered fan body 30 has a lower hook 31 at one end corresponding to the grille 5 and an upper hook 32 at one end corresponding to the dustproof net 4. The upper hook 32 further cuts off and blocks incoming rainwater and sand, while the lower hook 31 blocks from the front. Between two adjacent sets of louvered fan bodies 30, there is a gap between the inner sides of the upper hook 32 and the lower hook 31. To ensure the air permeability of the equipment, the minimum flow gap between two adjacent sets of louvered fan bodies 30 needs to be greater than 10mm, that is, the gap a between the upper and lower sets of lower hooks 31 needs to be greater than 10mm. At the same time, the front permeability needs to be within the range of 0.4 to 0.5 (front permeability = minimum flow gap a / total front gap b).
[0021] In this invention, the lower hook 31 is vertically downward and located inside the grille 5, directly intercepting rainwater and sand. The upper hook 32 has a bent end 33 at its end that is parallel to the louvered fan body 30. When moving from the outside to the inside, the bent end 33 and the louvered fan body 30 form a corridor, effectively preventing a small amount of rainwater and sand that the lower hook 31 cannot intercept from entering the inner cavity 2. When moving from the inside to the outside, the bent end 33 and the louvered fan body 30 located on the upper side form a guide channel, effectively helping the internally emitted hot airflow to be discharged outward, ensuring ventilation and heat dissipation effects. The lower end of the inner cavity 2 is provided with an inclined surface 6, which slopes downwards and outwards along the inside of the frame 1. Drainage outlets 8 are provided between the bottom ends of the dustproof net 4 and the inclined surface 6. In extreme cases, rainwater and sand entering the inner cavity 2 will be caught by the dustproof net 4 and discharged from the drainage outlets 8, dripping down the inclined surface 6 to the bottom of the frame 1. Drainage outlets 8 are also provided at the bottom of the frame 1 to discharge a very small portion of rainwater that may enter in extreme cases. A filter layer 7 is also provided between the dustproof net 4 and the louver structure 3. The filter layer 7 uses mesh filter cotton to prevent dust from entering the interior of the box.
[0022] This utility model also includes an outdoor cabinet, in which the air inlet and outlet of the cooling fan of the equipment inside the outdoor cabinet are provided with the ventilation, waterproof and dustproof louver structure disclosed in this utility model. Through this structure, ventilation and heat exchange with the external environment are carried out, while also ensuring good waterproof and dustproof performance. This allows good air circulation to be formed inside the cabinet, improving the cooling effect inside the cabinet. There is no need to add a strong exhaust fan inside the cabinet, reducing the energy consumption and operating cost of the equipment.
[0023] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A ventilated, waterproof, and dustproof louver structure, comprising a frame (1) and an inner cavity (2) formed in the frame (1), characterized in that: In the inner cavity (2), a louver structure (3) and a dustproof net (4) are arranged sequentially from the outside to the inside along the frame (1). The louver structure (3) includes a number of vertically downward equidistant louver fan bodies (30). The number of louver fan bodies (30) are arranged obliquely downward toward the outside of the frame (1), and a lower hook (31) is provided at the outer end of the inner cavity (2), and an upper hook (32) is provided at one end of the dustproof net (4). In adjacent groups of louver structures (30) the louver structure (3) is arranged in a louver structure (30). Between the blade fan bodies (30), there is a gap between the inner sides of the upper hook (32) and the lower hook (31). The lower hook (31) is set vertically downward. The upper hook (32) has a bent end (33) that is parallel to the blade fan body (30). The blade fan body (30) is set at an angle of 15~45° to the outside of the frame (1). The distance between two adjacent sets of blade fan bodies (30) is greater than 10mm.
2. The ventilated, waterproof, and dustproof louver structure according to claim 1, characterized in that: A grille (5) is also provided in the inner cavity (2), and the grille (5) is provided on the outside of the louver structure (3) corresponding to the frame (1).
3. The ventilated, waterproof, and dustproof louver structure according to claim 1, characterized in that: The lower end of the inner cavity (2) is provided with a slope (6), which slopes outward and downward along the frame (1).
4. The ventilated, waterproof, and dustproof louver structure according to claim 1, characterized in that: A filter layer (7) is also provided between the dustproof net (4) and the louver structure (3), and the filter layer (7) is made of mesh filter cotton.
5. The ventilated, waterproof, and dustproof louver structure according to claim 3, characterized in that: Drainage outlets (8) are provided between the bottom two ends of the dustproof net (4) and the inclined surface (6).
6. An outdoor cabinet, characterized in that: It includes a main cabinet and a ventilated, waterproof and dustproof louver structure as described in any one of claims 2, 4 or 5, wherein the ventilated, waterproof and dustproof louver structure is disposed on the air inlet and outlet of the cooling fan of the equipment inside the main cabinet.