A waterproof structure for an outdoor cabinet top-mounted fan

Abstract

The utility model provides a kind of for outdoor cabinet top-mounted fan waterproof structure, comprising: mounting pedestal, for being fixed around the fan mounting hole of cabinet top surface, and for installing fan body;Fan protective cover, cover is located on the mounting pedestal and fan body, the shutter is fixedly connected in the fan protective cover;Fan protective screen cover, install in the air outlet side of the fan protective cover, the fan protective screen cover is equipped with several protective screens;Wherein, at least one drainage structure is provided on the fan protective screen cover or mounting pedestal, for the rainwater that enters the fan protective screen cover or fan protective screen cover is discharged, by the combination of mounting pedestal, fan protective cover, shutter and fan protective screen cover, complete external fan multilevel waterproof structure is constructed, the technical problem that the waterproof performance of external fan is insufficient is solved.Effective to prevent rainwater from invading cabinet through external fan.

Description

Technical Field

[0001] This utility model relates to the field of cabinet protection technology, specifically a waterproof structure for a top-mounted fan in an outdoor cabinet. Background Technology

[0002] Power router cabinets are devices that provide an outdoor physical working environment and safety system for enabling multi-directional energy flow and active power flow control. Waterproofing is a fundamental requirement for outdoor cabinets. For traditional small-sized cabinets, fans are usually placed inside the cabinet. However, power router cabinets are significantly larger than other cabinets, and the fans are primarily used in the power section of the cabinet. This results in low utilization of the internal space, wasting considerable space and leading to an oversized cabinet, while also hindering heat dissipation. To improve the energy density and economic efficiency of the power router, the fans are placed externally on the top of the cabinet. With external fans, rainwater can splash through the exhaust vents into the fan's protective cover and then seep into the cabinet, severely affecting the normal operation of internal components. Therefore, the waterproof performance of the fans is particularly important. Utility Model Content

[0003] This utility model provides a waterproof structure for a top-mounted fan in an outdoor cabinet, the purpose of which is to solve the technical problem of insufficient waterproof performance of external fans in the prior art.

[0004] This utility model provides a waterproof structure for a top-mounted fan in an outdoor server rack, comprising: Mounting base, used to fix around the fan mounting holes on the top surface of the cabinet, and used to mount the fan body; A fan protective cover is installed over the mounting base and the fan body, and louvers are fixedly connected inside the fan protective cover; A fan protective mesh cover is installed on the air outlet side of the fan protective cover, and the fan protective mesh cover is provided with several protective meshes inside; The wind turbine protective cover or mounting base is provided with at least one drainage structure to drain rainwater that enters the wind turbine protective cover or wind turbine protective net cover.

[0005] Furthermore, the drainage structure includes a first water leakage hole at the bottom of the fan protective mesh cover, the bottom of the fan protective mesh cover being higher than the top surface of the cabinet, the first water leakage hole connecting the fan protective mesh cover to the outside, and draining rainwater inside the fan protective mesh cover to the top surface of the cabinet.

[0006] Furthermore, the drainage structure also includes a second drainage hole disposed on the mounting base and located between the louver and the fan protective mesh cover. The second drainage hole connects the fan protective cover to the outside environment and is used to discharge rainwater inside the fan protective cover to the top surface of the cabinet. Furthermore, the fan protective mesh cover and the fan protective cover are sealed together by a sealing strip.

[0007] Furthermore, the wind turbine protective cover is composed of a semi-cylindrical protective chamber and a cubic protective chamber. The semi-cylindrical protective chamber covers the top of the wind turbine body, and the cubic protective chamber connects the semi-cylindrical protective chamber, the mounting base, and the louvers.

[0008] Furthermore, a first connector is fixedly connected to the outer surface of the semi-cylindrical protective compartment of the fan shield, and the fan shield is detachably fixed to the mounting base by the first connector provided on its side.

[0009] Furthermore, the bottom of the side surface of the cubic protective compartment of the wind turbine protective cover is fixedly connected with a second connector and a plurality of first screws, and the wind turbine protective cover is detachably fixed to the mounting base by the second connector and the first screws provided on its side.

[0010] Furthermore, the top of the wind turbine protective net cover is a downward-sloping arc surface to facilitate rainwater sliding off the surface.

[0011] This utility model has at least the following beneficial effects: This utility model provides a waterproof structure for a top-mounted fan in an outdoor server rack. By combining a mounting base, a fan protective cover, louvers, and a fan protective mesh cover, a complete multi-layered waterproof structure for the external fan is constructed, solving the technical problem of insufficient waterproof performance of external fans. This effectively prevents rainwater from entering the server rack through the external fan.

[0012] This invention provides a waterproof structure for a top-mounted fan in an outdoor server rack. The fan's protective mesh cover and its internal protective mesh form the first line of defense, effectively blocking large particles and most of the rainwater that falls or splashes. The fan's protective cover acts as the second robust barrier, further protecting the fan itself. When the fan stops, the internal louvers can automatically or passively close, forming the third line of defense and effectively preventing rainwater backflow.

[0013] This utility model provides a waterproof structure for a top-mounted fan in an outdoor cabinet. It is equipped with a drainage structure that can actively and promptly drain rainwater that has intruded into the protective structure, thus avoiding the risk of water level rising due to rainwater accumulation and eventually exceeding the protective threshold and seeping into the cabinet. Attached Figure Description

[0014] Figure 1 This is a structural diagram of a waterproof structure for a top-mounted fan in an outdoor cabinet, as described in this utility model. Figure 2 This is an exploded view of a waterproof structure for a top-mounted fan in an outdoor server rack, as described in this utility model. Figure 3 This is a structural diagram of a waterproof structure for a top-mounted fan in an outdoor cabinet, as described in this utility model. In the diagram: 1. Cabinet top; 2. Mounting base; 3. Fan body; 4. Fan mounting hole; 5. Fan protective cover; 6. Louver; 7. Sealing strip; 8. Fan protective mesh cover; 9. Fan protective cover fixing hole; 10. Protective mesh; 11. First drainage hole; 12. Second drainage hole; 13. First connector; 14. Second connector; 15. Fan protective cover mounting hole; 16. First screw; 17. Fan protective mesh cover mounting hole; 18. Second screw. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3 This utility model provides a waterproof structure for a top-mounted fan in an outdoor cabinet. A mounting base 2 is fixedly connected to the fan mounting hole 4 on the top surface 1 of the cabinet. The mounting base is a polygonal ring. The air duct outlet is located within the mounting base 2. A fan body 3 is fixedly connected within the mounting base 2. A fan protective cover 5 is fixedly connected to the mounting base 2, and the fan body 3 is located within the fan protective cover 5. The mounting base 2 is convex in shape. The bottom of the mounting base 2 is fixedly connected to the top surface 1 of the cabinet by sealing welding or sealant. A louver 6 is fixedly connected inside the fan protective cover, and a fan protective mesh cover 8 is fixedly connected outside the louver 6. As an example of implementation, the space between the mounting base 2 and the top surface 1 of the base is filled with waterproof adhesive to improve waterproof performance.

[0017] In an embodiment of this utility model, the fan protective cover 5 is a semi-cylindrical protective chamber and a cubic protective chamber. The bottom of the side surface of the semi-cylindrical protective chamber is provided with a first connector 13. The cubic protective chamber is a chamber with three open sides and three closed sides. One opening of the cubic protective chamber is connected to the semi-cylindrical protective chamber, one opening is fixedly connected to the mounting base, and one opening is fixedly connected to the louver 6.

[0018] As an optional embodiment, the first connector 13 is a right-angle connector. The vertical section of the first connector 1 is fixedly connected to the semi-cylindrical protective chamber of the fan protective cover 5, and the horizontal section of the first connector 13 is fixedly connected to the protruding part of the mounting base 2. The first connector 13 and the mounting base 2 can be fixedly connected by a hinge or hinge to improve the convenience of maintenance. A waterproof rubber layer needs to be installed at the hinge. Alternatively, the connection can be fixed by welding or threading to improve the sealing performance between the first connector 13 and the mounting base 2.

[0019] As an optional embodiment, the top two sides of the mounting base are provided with a plurality of fan protective cover fixing holes 9, and the bottom two sides of the side surface of the fan protective cover 5 are respectively fixedly connected to the second connector 14, and each second connector 14 is fixedly connected to both sides of the cubic protective compartment of the fan protective cover 5; each second connector 14 is provided with a plurality of first screws 16, and the first screws 16 are threadedly connected to the fan protective fixing holes 9, and the second connector 14 is fixedly connected to the mounting base 2 by the first screws 16.

[0020] The fan guard 5 and the mounting base 2 are detachably connected by connectors and screws, which greatly improves maintainability. When the fan body 3 needs to be inspected, cleaned or replaced, maintenance personnel can easily open or remove the guard by simply unscrewing the screws. The operation is convenient, shortens maintenance time and reduces operation and maintenance costs, which is significantly more advantageous than permanent connection methods such as welding.

[0021] In an embodiment of this utility model, the fan protective cover 5 has a plurality of fan protective net mounting holes 17 evenly opened on the side facing the fan protective net cover 8, and the fan protective net cover 8 has a plurality of through holes for inserting second screws 18 on the side facing the fan protective cover 5. The fan protective net cover 8 and the fan protective cover 5 are fixedly connected by a plurality of second screws 18.

[0022] As an optional embodiment, a plurality of protective nets 10 are fixedly connected inside the fan protective net cover 8.

[0023] As an optional embodiment, a sealing strip 7 is laid between the fan protective mesh cover 8 and the fan protective cover 5. The sealing strip 7 has a certain degree of elasticity and has multiple through holes for mounting the second screw 18. Using the sealing strip 7 at the joint between the fan protective cover 5 and the fan protective mesh cover 8 significantly improves the sealing performance of the structural connection, effectively preventing rainwater from seeping into the assembly gaps between the fan protective cover 5 and the fan protective mesh cover 8, and compensating for any minor gaps that may exist in the mechanical connection. The strip also provides some cushioning and shock absorption, ensuring reliable sealing during long-term use.

[0024] As an optional embodiment, the bottom of the fan protective mesh cover 8 is higher than the top surface 1 of the cabinet, and a plurality of first drainage holes 11 are evenly provided at the bottom of the fan protective mesh cover 8.

[0025] As an optional embodiment, the mounting base 2 is provided with a plurality of second drainage holes 12 evenly distributed between the louver 6 and the fan protective mesh cover.

[0026] The waterproof performance is greatly enhanced through a component-level drainage system. The first drainage hole 1, located at the bottom of the outermost fan protective mesh cover 8, quickly drains rainwater collected after being intercepted by the first line of defense, serving as the main drainage channel. The second drainage hole 12, located on the inner mounting base 2, acts as a backup. Even in extremely windy and rainy weather, if a small amount of rainwater overflows through the louvers 6 and enters the interior area, the second drainage hole 12 can promptly drain this accumulated water. This dual drainage design constitutes the second and third lines of defense, ensuring absolute waterproof safety under extremely severe weather conditions and providing extremely high reliability.

[0027] As an optional embodiment, the top of the wind turbine protective net cover 8 is an arc shape that slopes downwards. By utilizing gravity, rainwater falling to the top cannot stay or accumulate, but will quickly flow to both sides along the arc surface and slide down. This reduces the amount of water entering the protective structure from the source, reduces the burden on the internal drainage structures such as the first and second drainage holes 11, and further enhances the overall waterproof performance.

[0028] The fan 3, protected by the mounting base 2, fan protective cover 5, and fan protective mesh cover 8, forms the first line of defense to ensure the normal operation of the components and equipment inside the cabinet. In severe weather, rainwater is highly likely to penetrate the protective mesh 10 and enter the fan protective mesh cover 8. Due to the obstruction of the protective mesh 10, rainwater flows into the fan protective mesh cover 8 along its walls. To prevent water from rising and entering the fan protective mesh cover 8, a first drainage hole 11 is opened on the lower side of the fan protective mesh cover 8 to promptly drain rainwater to the top surface 1 of the outdoor cabinet, thus forming the second line of defense to drain accumulated water and further enhance waterproof performance. When the weather is exceptionally severe, causing rainwater to enter the fan protective mesh cover 8 and the water level to rise, causing rainwater to enter the area between the louvers 6 and the sealing strip 7, a second drainage hole 12 is opened in this area in the same manner to drain the ingress rainwater to the top surface 1 of the outdoor cabinet, thus forming the third line of defense and further consolidating waterproof performance. When the outdoor cabinet is operating normally, fan 3 blows air outwards. The fan has a high power output, and the airflow speed passing through the louvers is very high, thus preventing rainwater from splashing into fan 3. This utility model's structural design solves the waterproofing problem of external fans in outdoor cabinets through triple protection. When designing relatively large cabinets, fans intended for specific areas can be placed on top of the cabinet, greatly saving cabinet space, improving space utilization, and simultaneously increasing power density and economic efficiency.

Claims

1. A waterproof structure for a top-mounted fan in an outdoor server rack, characterized in that, include: Mounting base (2) is used to fix around the fan mounting hole (4) on the top surface (1) of the cabinet and to mount the fan body (3). A fan protective cover (5) is installed on the mounting base (2) and the fan body (3), and a louver (6) is fixedly connected inside the fan protective cover (5). A fan protective net cover (8) is installed on the air outlet side of the fan protective cover (5), and a number of protective nets (10) are provided inside the fan protective net cover (8). The fan protective net cover (8) or the mounting base (2) is provided with at least one drainage structure to drain the rainwater that enters the fan protective cover (5) or the fan protective net cover (8).

2. The waterproof structure for a top-mounted fan in an outdoor server rack according to claim 1, characterized in that, The drainage structure includes a first drain hole (11) at the bottom of the fan protective net cover (8), the bottom of the fan protective net cover (8) is higher than the top surface (1) of the cabinet, the first drain hole (11) connects the fan protective net cover (8) to the outside, and discharges the rainwater in the fan protective net cover (8) to the top surface (1) of the cabinet.

3. A waterproof structure for a top-mounted fan in an outdoor server rack according to claim 2, characterized in that, The drainage structure also includes a second drain hole (12) disposed on the mounting base (2) and located between the louver (6) and the fan protective cover (8). The second drain hole (12) connects the fan protective cover (5) to the outside world and is used to discharge rainwater inside the fan protective cover (5) to the top surface (1) of the cabinet.

4. A waterproof structure for a top-mounted fan in an outdoor server rack according to claim 1, characterized in that, The fan protective mesh cover (8) and the fan protective cover (5) are sealed together by a sealing strip (7).

5. A waterproof structure for a top-mounted fan in an outdoor server rack according to claim 1, characterized in that, The fan protective cover (5) is composed of a semi-cylindrical protective chamber and a cubic protective chamber. The semi-cylindrical protective chamber covers the top of the fan body (3), and the cubic protective chamber connects the semi-cylindrical protective chamber, the mounting base (2), and the louvers (6).

6. A waterproof structure for a top-mounted fan in an outdoor server rack according to claim 5, characterized in that, The outer surface of the semi-cylindrical protective compartment of the fan protective cover (5) is fixedly connected to a first connector (13), and the fan protective cover (5) is detachably fixed to the mounting base (2) by the first connector (13) provided on its side.

7. A waterproof structure for a top-mounted fan in an outdoor server rack according to claim 5, characterized in that, The bottom of the side surface of the cubic protective chamber of the fan shield (5) is fixedly connected with a second connector (14) and a plurality of first screws (16). The fan shield (5) is detachably fixed to the mounting base (2) by the second connector (14) and the first screws (16) provided on its side.

8. A waterproof structure for a top-mounted fan in an outdoor server rack according to claim 2, characterized in that, The top of the wind turbine protective net cover (8) is a downward-sloping arc surface to facilitate rainwater sliding down the surface.

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