Fan mesh enclosure and cabinet

Abstract

The utility model belongs to the technical field of heat dissipation, and discloses a fan mesh enclosure and a cabinet. The fan mesh enclosure comprises a mesh enclosure body and a wind scooper, the wind scooper is arranged on the inner side of the mesh enclosure body, and the wind scooper is used for guiding part of air volume to the position, opposite to a rotating shaft of the fan, of the mesh enclosure body when the fan blows back, the air volume and the air speed at the position are increased, and therefore the purpose of blowing away sundries at the position is achieved. The cleaning effect on the fan mesh enclosure during blowback of the fan is improved, smooth ventilation of a heat dissipation system is effectively kept, the heat dissipation efficiency is improved, and it is guaranteed that electrical equipment stably operates within the normal temperature range.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation, in particular to a fan mesh cover and a cabinet. Background Art

[0002] Outdoor cabinets require a cooling system to dissipate the heat generated by internal electrical equipment to ensure that the electrical equipment works within a normal temperature range. The working environment of outdoor cabinets is harsh, and debris such as dead leaves and catkins are easily attached to the fan mesh of the cooling system, which will cause the ventilation holes of the cooling system to be blocked, affecting the cooling efficiency and causing damage to the electrical equipment.

[0003] At present, the fan back-blowing method is commonly used to blow away the debris attached to the fan mesh cover, but the air volume at the fan shaft is small and insufficient to provide the wind force to blow away the debris, causing the debris to accumulate at the fan mesh cover corresponding to the fan shaft, affecting the ventilation volume of the fan mesh cover.

[0004] Therefore, there is an urgent need for a fan grille and a cabinet to solve the problems in the prior art. Utility Model Content

[0005] One purpose of the utility model is to provide a fan mesh cover, which can guide part of the wind volume when the fan is backblowing to the position where the mesh cover body is relative to the rotating shaft of the fan, thereby increasing the wind volume and wind speed at that location, thereby achieving the purpose of blowing away debris at that location and improving the cleaning effect.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Fan guard, including:

[0008] Grille body;

[0009] The wind guide cover is arranged on the inner side of the mesh cover body, and the wind guide cover is configured to guide part of the wind volume when the fan blows back to the relative position of the mesh cover body and the rotating shaft of the fan.

[0010] Optionally, the mesh cover body includes a mounting portion and a ventilation portion, the mounting portion is connected to the cabinet, the ventilation portion is arranged opposite to a fan in the cabinet, and a plurality of first ventilation holes are provided on the ventilation portion.

[0011] Optionally, the air guide cover is detachably connected to the ventilation part.

[0012] Optionally, the air guide cover includes a trumpet-shaped air guide portion and an elastic clamping portion, the first end of the trumpet-shaped air guide portion faces the fan, the elastic clamping portion is arranged at the second end of the trumpet-shaped air guide portion, and the elastic clamping portion is clamped and connected to the ventilation portion.

[0013] Optionally, the elastic clamping portion includes an elastic arm and a claw, one end of the elastic arm is connected to the trumpet-shaped air guide portion, and the other end is connected to the claw, the claw can be passed through any one of the first ventilation holes, and the elastic arm is used to provide the claw with elastic force along the radial direction of the first ventilation hole so that the claw is clamped on the ventilation portion.

[0014] Optionally, the clamping claw includes a first plate, a second plate and a third plate connected in sequence, the first plate is connected to the elastic arm, the first plate, the second plate and the third plate are jointly arranged to form a U-shaped clamping groove, and the opening of the U-shaped clamping groove is away from the center direction of the trumpet-shaped air guide part.

[0015] Optionally, a reinforcement portion is provided at the connection between the first plate and the second plate.

[0016] Optionally, along the circumferential direction of the trumpet-shaped air guide portion, a plurality of second ventilation holes are provided on the trumpet-shaped air guide portion at intervals.

[0017] Optionally, the air guide cover is fastened to the ventilation portion by a first fastener.

[0018] Optionally, the air guide cover is magnetically connected to the ventilation part.

[0019] Another object of the utility model is to provide a cabinet, which improves the cleaning effect of the fan mesh cover during the backblowing of the fan, effectively keeps the heat dissipation system ventilated and unobstructed, improves the heat dissipation efficiency, and ensures that the electrical equipment in the shell operates stably within the normal temperature range.

[0020] To achieve this purpose, the utility model adopts the following technical solutions:

[0021] The cabinet comprises a shell, a fan and the above-mentioned fan mesh cover, wherein the fan is arranged in the shell, a avoidance hole is arranged on the shell corresponding to the fan, and the fan mesh cover is arranged on the avoidance hole.

[0022] Optionally, the fan grille is fastened to the casing by a second fastener.

[0023] Beneficial effects:

[0024] The fan mesh cover provided by the utility model comprises a mesh cover body and an air guide cover. The air guide cover is arranged on the inner side of the mesh cover body. The air guide cover is used to guide part of the air volume when the fan is backblowing to the position where the mesh cover body is relative to the rotating shaft of the fan, thereby increasing the air volume and wind speed at the location, thereby achieving the purpose of blowing away debris at the location and improving the cleaning effect of the fan mesh cover when the fan is backblowing.

[0025] The cabinet provided by the utility model comprises a housing, a fan and the above-mentioned fan mesh cover, wherein the fan is arranged in the housing, a avoidance hole is arranged on the housing corresponding to the fan, and the fan mesh cover is arranged on the avoidance hole. By arranging the fan mesh cover, the cleaning effect of the fan mesh cover during the back-blowing of the fan is improved, the ventilation of the heat dissipation system is effectively maintained, the heat dissipation efficiency is improved, and the electrical equipment in the housing is ensured to operate stably within the normal temperature range. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the wind flow path when the fan is backblowing in the prior art;

[0027] Figure 2 It is a cross-sectional view of the fan mesh cover provided by the utility model;

[0028] Figure 3 It is a schematic diagram of the wind flow path of the fan mesh cover provided by the utility model when the fan is backblowing;

[0029] Figure 4 It is a structural schematic diagram of the fan mesh cover provided by the utility model being installed on the housing;

[0030] Figure 5 This is an exploded view of the fan mesh provided by the utility model installed on the housing;

[0031] Figure 6 It is a schematic diagram of the structure of the fan mesh cover provided by the utility model at a certain viewing angle;

[0032] Figure 7 yes Figure 2 A partial enlarged view of the middle A;

[0033] Figure 8 This is a schematic diagram of the structure of the air guide cover provided by the utility model at a certain viewing angle;

[0034] Fig. 9 It is a structural schematic diagram of the air guide cover provided by the utility model from another viewing angle;

[0035] Fig.10 yes Fig. 9 A partial enlarged view of point B in the middle.

[0036] In the figure:

[0037] 100, mesh cover body; 110, mounting portion; 120, ventilation portion; 121, first ventilation hole;

[0038] 200, air guide cover; 210, trumpet-shaped air guide portion; 211, second ventilation hole; 220, elastic clamping portion; 221, elastic arm; 222, clamping claw; 2221, first plate; 2222, second plate; 2223, third plate; 2224, reinforcement portion;

[0039] 10. Outer shell; 11. Avoidance hole; 20. Fan; 21. Shell; 22. Rotating shaft; 23. Fan blades. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] like Figure 1 As shown, in the prior art, debris attached to the fan mesh is blown away by backblowing of the fan, but the air volume at the fan shaft is small and insufficient to provide wind force to blow away the debris, causing the debris to accumulate at the fan mesh corresponding to the fan shaft, affecting the ventilation volume of the fan mesh.

[0045] To this end, this embodiment provides a fan guard, such as Figure 2-Figure 10 As shown, the fan mesh cover includes a mesh cover body 100 and an air guide cover 200. The air guide cover 200 is arranged on the inner side of the mesh cover body 100. The air guide cover 200 is used to guide part of the air volume when the fan 20 is backblowing to the position where the mesh cover body 100 is relative to the rotating shaft 22 of the fan 20, thereby increasing the air volume and wind speed at this location, thereby achieving the purpose of blowing away debris at this location, improving the cleaning effect of the fan mesh cover when the fan 20 is backblowing, effectively keeping the heat dissipation system ventilated and unobstructed, improving the heat dissipation efficiency, and ensuring that the electrical equipment operates stably within the normal temperature range.

[0046] Alternatively, if Figure 3 As shown, the fan 20 includes a shell 21, a rotating shaft 22 and fan blades 23. The rotating shaft 22 is rotatably arranged in the shell 21, and a plurality of fan blades 23 are distributed on the rotating shaft 22 at intervals along the circumferential direction of the rotating shaft 22. The diameter of the wind guide cover 200 in this embodiment is larger than the diameter of the rotating shaft 22, and is smaller than or equal to the diameter of the shell 21, thereby ensuring that the wind guide cover 200 effectively guides part of the air volume to the position where the mesh cover body 100 and the rotating shaft 22 of the fan 20 are relative when the fan 20 blows back, thereby increasing the air volume and wind speed at this location, thereby achieving the purpose of blowing away debris at this location.

[0047] Alternatively, if Figure 2-Figure 3 As shown, the mesh cover body 100 includes a mounting portion 110 and a ventilation portion 120, the mounting portion 110 is connected to the cabinet, the ventilation portion 120 is arranged opposite to the fan 20 in the cabinet, and a plurality of first ventilation holes 121 are arranged on the ventilation portion 120. By providing the first ventilation holes 121, the ventilation effect of the ventilation portion 120 can be enhanced to ensure the normal operation of the fan 20 in the cabinet. In addition, the plurality of first ventilation holes 121 can effectively promote air flow, thereby helping the heat dissipation system to more effectively discharge the heat generated by the internal electrical equipment, and keep the equipment always working within the normal operating temperature range.

[0048] Optionally, the mesh cover body 100 is made of metal, which has strong structural strength and corrosion resistance and can better resist the influence of the external environment, such as high temperature, humidity or chemical erosion. This design makes the fan mesh cover more durable and can be used for a long time in harsh outdoor environments without being easily damaged.

[0049] Optionally, the air guide cover 200 is detachably connected to the ventilation portion 120. This design allows the user to remove or replace the air guide cover 200 at any time as needed, thereby simplifying the maintenance and cleaning process.

[0050] Alternatively, if Figure 4-Figure 6As shown, in this embodiment, five fans 20 are arranged in the cabinet, and five air guide covers 200 are arranged inside the corresponding mesh cover body 100. Each air guide cover 200 can be detachably mounted on the ventilation part 120 of the mesh cover body 100, ensuring that the debris at the rotating shaft 22 of each fan 20 corresponding to the ventilation part 120 is effectively blown away when the fan 20 blows back, thereby improving the cleaning effect. It should be noted that the user can choose to install or remove the corresponding number of air guide covers 200 according to the specific layout and actual needs inside the cabinet to achieve the best ventilation and diversion effect.

[0051] Alternatively, if Figure 7 As shown, the air guide cover 200 includes a trumpet-shaped air guide portion 210 and an elastic clamping portion 220, wherein the first end of the trumpet-shaped air guide portion 210 faces the fan 20, the elastic clamping portion 220 is arranged at the second end of the trumpet-shaped air guide portion 210, and the elastic clamping portion 220 is clamped and connected with the ventilation portion 120. The first end of the trumpet-shaped air guide portion 210 is an open end, and the second end of the trumpet-shaped air guide portion 210 is a closed end, so that when the first end of the trumpet-shaped air guide portion 210 faces the fan 20, the air volume can be more effectively guided to the position where the ventilation needs to be enhanced (i.e., the position where the mesh cover body 100 and the rotating shaft 22 of the fan 20 in this embodiment are relative), thereby improving the air guiding effect. The elastic clamping portion 220 is arranged at the second end of the trumpet-shaped air guide portion 210 and is clamped and connected with the ventilation portion 120, which can ensure the close connection between the air guide cover 200 and the ventilation portion 120, enhance the stability and reliability of the connection, and ensure that it can still operate stably for a long time in harsh environments.

[0052] Alternatively, if Figure 7 As shown, the elastic clamping portion 220 includes an elastic arm 221 and a claw 222. One end of the elastic arm 221 is connected to the trumpet-shaped air guide portion 210, and the other end is connected to the claw 222. The claw 222 can be inserted into any first ventilation hole 121. The elastic arm 221 is used to provide the claw 222 with elastic force along the radial direction of the first ventilation hole 121, so as to ensure that the claw 222 can be firmly clamped on the ventilation portion 120 without being easily loosened or falling off, thereby improving the stability of the connection of the air guide cover 200.

[0053] The air guide cover 200 provided in this embodiment is provided with four elastic clamping parts 220, and the four elastic clamping parts 220 are evenly distributed along the circumference of the air guide cover 200. This design ensures that the air guide cover 200 can be evenly stressed during installation and can firmly fix the air guide cover 200 on the ventilation part 120 of the mesh cover body 100.

[0054] Alternatively, if Figure 7As shown, when installing the air guide cover 200, the user only needs to press the claw 222 down to the position of the dotted line and then release it. Under the elastic force of the elastic arm 221, the claw 222 is stably clamped on the ventilation part 120 of the mesh cover body 100, and the operation process is simple and convenient.

[0055] Alternatively, if Figure 8-Figure 10 As shown, the claw 222 includes a first plate 2221, a second plate 2222 and a third plate 2223 which are connected in sequence, the first plate 2221 is connected to the elastic arm 221, the first plate 2221, the second plate 2222 and the third plate 2223 are jointly arranged to form a U-shaped groove, and the opening of the U-shaped groove is away from the center direction of the trumpet-shaped air guide part 210, ensuring that the claw 222 is more tightly connected to the ventilation part 120, which can effectively prevent the claw 222 from loosening or falling off during use, thereby improving the reliability of the connection between the air guide cover 200 and the ventilation part 120.

[0056] Alternatively, if Fig.10 As shown, a reinforcing portion 2224 is provided at the connection between the first plate 2221 and the second plate 2222. The reinforcing portion 2224 is integrally formed with the claw 222 and is located on the inner side of the U-shaped groove on the claw 222, thereby increasing the strength of the connection between the first plate 2221 and the second plate 2222, making the claw 222 more sturdy and durable, reducing the risk of breakage, and improving the stability of the claw 222 on the mesh cover, thereby improving the wind guiding effect.

[0057] Alternatively, if Figure 8 As shown, along the circumferential direction of the trumpet-shaped air guide portion 210 , a plurality of second ventilation holes 211 are spaced apart on the trumpet-shaped air guide portion 210 , which can further enhance the ventilation effect of the fan grille, thereby effectively improving the ventilation and heat dissipation efficiency of the ventilation portion 120 .

[0058] In an optional embodiment, the air scoop 200 is fastened to the ventilation portion 120 by a first fastener. This can enhance the connection stability and safety between the air scoop 200 and the ventilation portion 120. The first fastener can be a screw, a bolt, or other similar fastening element, which can firmly fix the air scoop 200 to the ventilation portion 120 to avoid loosening or falling off during use.

[0059] In another optional embodiment, the air scoop 200 is magnetically connected to the ventilation part 120. Such a design makes it easier and more convenient to install and remove the air scoop 200. The user only needs to align the air scoop 200 with the ventilation part 120, and the magnetic force will automatically adsorb it to the ventilation part 120 without the need for additional tools or labor.

[0060] Specifically, a first magnetic member is provided on the air guide cover 200, and a second magnetic member is provided on the ventilation part 120, and the first magnetic member and the second magnetic core member are magnetically connected. This magnetic connection method can ensure that the air guide cover 200 is firmly fixed on the ventilation part 120, and also facilitates daily maintenance and cleaning, and improves the convenience of use of the fan mesh cover.

[0061] The present embodiment further provides a cabinet, comprising a housing 10, a fan 20 and the above-mentioned fan mesh cover, wherein the fan 20 is arranged in the housing 10, a avoidance hole 11 is arranged on the housing 10 corresponding to the fan 20, and the fan mesh cover is arranged on the avoidance hole 11. By providing the fan mesh cover, the cleaning effect of the fan mesh cover during backblowing of the fan 20 is improved, the ventilation of the heat dissipation system is effectively maintained, the heat dissipation efficiency is improved, and the electrical equipment is ensured to operate stably within the normal temperature range.

[0062] Optionally, the fan guard is fastened to the housing 10 by a second fastener. Fastening the fan guard to the housing 10 by the second fastener can enhance the connection stability and safety between the fan guard and the housing 10. Specifically, the second fastener can be a screw, a bolt or other similar fastening element, which can firmly fix the fan guard to the housing 10 to avoid loosening or falling off during use.

[0063] Optionally, the fan 20 in this embodiment is an axial flow fan 20. The axial flow fan 20 has a large air volume, which improves the ventilation effect inside the cabinet, maintains the normal operating temperature of the equipment, and when the axial flow fan 20 backflows, it can more effectively clean the debris on the fan mesh cover, thereby improving the cleaning effect.

[0064] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Fan guard, characterized in that: include: Grille body (100); An air guide cover (200) is arranged on the inner side of the mesh cover body (100), and the air guide cover (200) is configured to guide part of the air volume when the fan (20) blows back to a position where the mesh cover body (100) is relative to the rotating shaft (22) of the fan (20).

2. The fan guard according to claim 1, characterized in that: The mesh cover body (100) comprises a mounting portion (110) and a ventilation portion (120); the mounting portion (110) is connected to a cabinet; the ventilation portion (120) is arranged opposite to a fan (20) in the cabinet; and a plurality of first ventilation holes (121) are provided on the ventilation portion (120).

3. The fan guard according to claim 2, characterized in that: The air guide cover (200) is detachably connected to the ventilation portion (120).

4. The fan guard according to claim 3, characterized in that: The air guide cover (200) comprises a trumpet-shaped air guide portion (210) and an elastic clamping portion (220), wherein a first end of the trumpet-shaped air guide portion (210) faces the fan (20), and the elastic clamping portion (220) is arranged at a second end of the trumpet-shaped air guide portion (210), and the elastic clamping portion (220) is clamped and connected to the ventilation portion (120).

5. The fan guard according to claim 4, characterized in that: The elastic clamping portion (220) comprises an elastic arm (221) and a clamping claw (222); one end of the elastic arm (221) is connected to the trumpet-shaped air guide portion (210), and the other end is connected to the clamping claw (222); the clamping claw (222) can be inserted into any one of the first ventilation holes (121); the elastic arm (221) is used to provide the clamping claw (222) with elastic force in the radial direction of the first ventilation hole (121), so that the clamping claw (222) is clamped on the ventilation portion (120).

6. The fan guard according to claim 5, characterized in that: The clamping claw (222) comprises a first plate (2221), a second plate (2222) and a third plate (2223) which are connected in sequence, the first plate (2221) is connected to the elastic arm (221), the first plate (2221), the second plate (2222) and the third plate (2223) are jointly arranged to form a U-shaped clamping groove, and the opening of the U-shaped clamping groove is away from the center direction of the trumpet-shaped air guide portion (210).

7. The fan guard according to claim 6, characterized in that: A reinforcing portion (2224) is provided at the connection between the first plate (2221) and the second plate (2222).

8. The fan guard according to claim 5, characterized in that: Along the circumferential direction of the trumpet-shaped air guide portion (210), a plurality of second ventilation holes (211) are provided at intervals on the trumpet-shaped air guide portion (210).

9. The fan guard according to claim 3, characterized in that: The air guide cover (200) is fastened to the ventilation portion (120) via a first fastener.

10. The fan guard according to claim 3, characterized in that: The air guide cover (200) is magnetically connected to the ventilation portion (120).

11. A cabinet, characterized in that: The invention comprises a housing (10), a fan (20) and a fan mesh cover according to any one of claims 1 to 10, wherein the fan (20) is arranged in the housing (10), a avoidance hole (11) is provided on the housing (10) corresponding to the fan (20), and the fan mesh cover is arranged on the avoidance hole (11).

12. The cabinet according to claim 11, characterized in that: The fan grille is fastened to the housing (10) via a second fastener.

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