A fan cover and a box-type substation

Abstract

The utility model discloses a fan cover and box type substation, and the box type substation contains fan and the box that is opened with the opening, and the fan penetrates the opening. The fan cover is constituted by first side plate, second side plate, third side plate and top plate, and the first side plate is perpendicular to the box and is connected with it, and the second side plate is parallel to the box and is connected first side plate and third side plate, and the top plate is connected to the top of three, and the cavity with horizontal vent of one end is formed by enclosing. The first side plate, second side plate and third side plate all are equipped with the extension plate to the cavity one side, and all extension plates support the filter screen in common, make the filter screen cover the vent. When working, the fan forced exhaust forms the negative pressure in the box, drives the outside cold air to enter through the horizontal vent, and in the area where the wind and sand are more, the horizontal vent can reduce the sand dust direct'irrigation ', reduces the filter screen jam probability, guarantees the smooth circulation of air, maintains the higher heat dissipation efficiency, solves the problem of traditional vertical vent filter screen easy to jam, low heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of protective cover technology, and in particular to a fan cover and a box-type substation. Background Technology

[0002] Prefabricated substations are widely used integrated power supply equipment outdoors. They consist of a cabinet that integrates high-power electrical devices such as transformers, circuit breakers, and control cabinets. These devices generate a large amount of heat during operation. If this heat is not dissipated in time, the temperature inside the cabinet will continue to rise, leading to a series of problems such as equipment overheating protection, decreased operating efficiency, and accelerated aging of insulation materials, seriously threatening the reliability of power supply.

[0003] To enhance heat dissipation, most existing prefabricated substations employ mechanical forced air cooling systems. Specifically, ventilation openings are created on the side walls of the enclosure, with louvers and filters installed sequentially from the outside in, along with a fan to form a heat dissipation channel. In this architecture, the fan acts as the core of active cooling, creating negative pressure within the enclosure through forced exhaust, driving cool external air into the enclosure through the ventilation openings and expelling hot internal air, thus achieving heat exchange.

[0004] However, this traditional heat dissipation structure has significant drawbacks: it places the vents directly on a vertical wall, and the louver design offers limited protection against sand and rain coming from multiple directions. In areas prone to sandstorms, strong winds can easily "pour" sand and dust directly into the vertically installed vents, causing rapid clogging of the filters and significantly reducing heat dissipation efficiency. Therefore, improvements to the existing technology are necessary. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a fan cover and a prefabricated substation, which solves the problem that existing prefabricated substations often use mechanical forced air cooling systems that involve opening ventilation openings on the vertical side walls, sequentially installing louvers and filters, and supplementing them with a fan to form a heat dissipation channel. However, the louver blades in this structure have limited protection against sand and rain from multiple directions. In areas with frequent sandstorms, strong winds easily draw sand and dust into the ventilation openings, causing filter blockage and a significant reduction in heat dissipation efficiency.

[0006] A fan cover according to an embodiment of the present invention is used in a prefabricated substation. The prefabricated substation includes a fan and a box with an opening. The fan passes through the opening. The fan cover includes a first side plate, a second side plate, a third side plate, and a top plate. The first side plate and the third side plate are both perpendicular to the box and connected to the box. The second side plate is parallel to the box and connects the first side plate and the third side plate. The top plate is connected to the top of the first side plate, the second side plate, and the third side plate to enclose and form a cavity with a ventilation opening at one end. The first side plate, the second side plate, and the third side plate are each provided with an extension plate on the side facing the cavity. All extension plates together constitute a support structure for supporting a filter screen so that the filter screen covers the ventilation opening.

[0007] A fan cover according to an embodiment of this utility model has at least the following beneficial effects: During operation, the fan of the box-type substation acts as the core of active heat dissipation, forcibly exhausting air and creating negative pressure inside the box, driving external cold air to enter. Unlike traditional ventilation openings on vertical walls, the fan cover of this utility model encloses a cavity with a horizontal ventilation opening at one end, changing the direction and path of air entry. The extension plates of the first, second, and third side plates facing the cavity constitute a support structure, ensuring that the filter screen is firmly covered by the horizontal ventilation opening. When cold air enters from the horizontal ventilation opening, the filter screen can effectively filter impurities. In areas prone to sandstorms, because the ventilation opening is horizontally set, sand and dust carried by strong winds cannot be directly "poured in" as they would through vertical ventilation openings, greatly reducing the possibility of sand and dust clogging the filter screen, ensuring smooth airflow, maintaining high heat dissipation efficiency, and effectively solving the problem of filter screen clogging and significantly reduced heat dissipation efficiency caused by the vertical setting of ventilation openings in traditional structures.

[0008] According to some embodiments of the present invention, the fan cover further includes fasteners, the extension plate has a through hole, the filter screen has a threaded hole, and the fasteners pass through the through hole and are threadedly connected to the threaded hole to lock the extension plate and the filter screen.

[0009] According to some embodiments of the present invention, a limiting plate is connected to the side of the second side plate facing the cavity. The limiting plate is arranged parallel to the extension plate, and the gap between the limiting plate and the extension plate matches the thickness of the filter screen, thereby limiting the filter screen.

[0010] According to some embodiments of the present invention, the outer wall of the housing is further provided with a clearance opening, the clearance opening is connected to the ventilation opening, and the filter screen moves through the clearance opening to the extension plate and covers the ventilation opening.

[0011] According to some embodiments of the present invention, a handle is connected to the side of the filter screen near the clearance opening.

[0012] According to some embodiments of the present invention, the outer wall of the box is connected to a rainproof member, which is located above the avoidance opening and is used to prevent rainwater from entering the cavity along the avoidance opening and the filter screen.

[0013] According to some embodiments of the present invention, the outer wall of the box is connected to a hook, the rainproof component includes a support frame, the support frame has a hook hole adapted to the hook, the hook passes through the hook hole, and the rainproof component is detachably connected to the box.

[0014] According to some embodiments of the present invention, the rain shield further includes a rain shield plate, a support tube is connected to the side of the rain shield plate facing the support frame, the support tube is provided with a threaded hole, the support frame is provided with an opening corresponding to the threaded hole, and a bolt passes through the opening and is threadedly connected to the threaded hole to lock the rain shield plate and the support frame.

[0015] According to the present invention, a box-type substation includes a box body, a fan and a fan cover. The box body has an opening, the fan is located at the opening, and the fan cover covers the fan and is detachably connected to the box body.

[0016] According to some embodiments of this utility model, a fixing plate is connected to the side of the top plate, the first side plate and the third side plate away from the cavity. A fixing column is vertically connected to the side of the fixing plate facing the box body. A limit hole is opened in the box body corresponding to the position of the fixing column. The fixing column passes through the limit hole and is provided with a threaded section. The nut in the box body is threaded to the threaded section to lock the box body and the fan cover.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure for removing the filter screen from the fan cover according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the rainproof component according to an embodiment of the present utility model; Figure 3 This is another structural schematic diagram of the rainproof component according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the filter and handle according to an embodiment of the present utility model; Figure 5This is a schematic diagram of the structure of the fan cover for the fan in an embodiment of the present utility model.

[0019] Figure Labels 10. First side panel; 11. Second side panel; 12. Third side panel; 13. Top panel; 14. Cavity; 15. Ventilation opening; 16. Extension plate; 17. Fixing plate; 18. Fixing column; 19. Through hole; 20. Limiting plate; 21. Clearance opening; 22. Handle; 23. Rain guard; 24. Support pipe; 25. Support frame; 26. Hanging hole; 27. Bolt; 28. Box body; 29. ​​Fan; 30. Filter screen. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution. In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] Please refer to Figures 1-5 According to an embodiment of the present invention, a fan cover is used in a prefabricated substation. The prefabricated substation includes a fan 29 and a box 28 with an opening. The fan 29 is disposed through the opening. The fan cover includes a first side plate 10, a second side plate 11, a third side plate 12, and a top plate 13. The first side plate 10 and the third side plate 12 are both disposed perpendicular to the box 28 and connected to the box 28. The second side plate 11 is parallel to the box 28 and connects the first side plate 10 and the third side plate 12. The top plate 13 is connected to the top of the first side plate 10, the second side plate 11, and the third side plate 12 to enclose and form a cavity 14 with a vent 15 at one end. The first side plate 10, the second side plate 11, and the third side plate 12 are respectively provided with an extension plate 16 on the side facing the cavity 14. All extension plates 16 together constitute a support structure for supporting a filter screen 30 so that the filter screen 30 covers the vent 15.

[0025] According to this embodiment of the prefabricated substation, the fan 29 serves as the core of active heat dissipation, forcibly exhausting air and creating negative pressure within the housing 28 to drive in external cold air. Unlike traditional methods that involve opening ventilation openings 15 on vertical walls, the fan cover of this invention encloses a cavity 14 with a horizontal ventilation opening 15 at one end, changing the direction and path of air entry. The extension plates 16 of the first side plate 10, the second side plate 11, and the third side plate 12 facing the cavity 14 constitute a support structure, ensuring that the filter 30 is securely covered by the horizontal ventilation opening 15. When cold air enters from the horizontal ventilation opening 15, the filter 30 effectively filters impurities. In areas prone to sandstorms, because the ventilation opening 15 is horizontally positioned, sand and dust carried by strong winds are less likely to be directly "poured in" as they would into a vertical ventilation opening 15, greatly reducing the likelihood of sand and dust clogging the filter 30, ensuring smooth airflow, maintaining high heat dissipation efficiency, and effectively solving the problem of easy clogging of the filter 30 and a significant reduction in heat dissipation efficiency caused by the vertical positioning of the ventilation opening 15 in traditional structures.

[0026] According to some embodiments of the present invention, the fan cover also includes fasteners, an extension plate 16 has a through hole 19, a filter screen 30 has a threaded hole, and the fasteners pass through the through hole 19 and are threadedly connected to the threaded hole to lock the extension plate 16 and the filter screen 30.

[0027] When installing the filter screen 30, place it in the appropriate position on the extension plate 16, aligning the through hole 19 on the extension plate 16 with the threaded hole on the filter screen 30. Then, insert the fastener through the through hole 19 and rotate the fastener to connect the threads to the threaded hole. This method securely locks the extension plate 16 and the filter screen 30 together, preventing the filter screen 30 from shifting or falling off during use. It ensures that the filter screen 30 always stably covers the vent 15, filtering dust and maintaining good heat dissipation and protective performance.

[0028] According to some embodiments of the present invention, a limiting plate 20 is connected to the side of the second side plate 11 facing the cavity 14. The limiting plate 20 is arranged parallel to the extension plate 16. The gap between the limiting plate 20 and the extension plate 16 matches the thickness of the filter screen 30 and is used to limit the filter screen 30.

[0029] Since the gap size matches the thickness of the filter screen 30, it can accurately limit the position of the filter screen 30, preventing the filter screen 30 from shaking or shifting in the vertical direction, and further ensuring the stability and accuracy of the filter screen 30 installation.

[0030] According to some embodiments of the present invention, the outer wall of the housing 28 is also provided with an avoidance opening 21, which is connected to the ventilation opening 15. The filter screen 30 moves through the avoidance opening 21 to the extension plate 16 and covers the ventilation opening 15.

[0031] When installing the filter screen 30, move the filter screen 30 onto the extension plate 16 through the clearance opening 21 on the outer wall of the housing 28, and then adjust the position of the filter screen 30 so that it covers the vent 15.

[0032] According to some embodiments of the present invention, a handle 22 is connected to the side of the filter screen 30 near the relief opening 21.

[0033] When it is necessary to install or remove the filter screen 30, the operator can hold the handle 22 connected to the side of the filter screen 30 near the relief opening 21 and move the filter screen 30 through the handle 22.

[0034] According to some embodiments of the present invention, the outer wall of the housing 28 is connected to a rainproof component, which is located above the avoidance opening 21 and is used to prevent rainwater from entering the cavity 14 along the avoidance opening 21 and the filter screen 30.

[0035] When it rains, the rainproof component connected to the outer wall of the enclosure 28 comes into play. Located above the avoidance opening 21, it prevents rainwater from entering the cavity 14 along the avoidance opening 21 and the filter screen 30. This prevents rainwater from damaging the electrical components inside the enclosure 28 and ensures that the prefabricated substation can operate normally in rainy weather.

[0036] According to some embodiments of the present invention, the outer wall of the box 28 is connected to a hook, and the rainproof component includes a support frame 25. The support frame 25 has a hook hole 26 adapted to the hook, and the hook passes through the hook hole 26. The rainproof component is detachably connected to the box 28.

[0037] When installing the rain shield, align the hook hole 26 on the support frame 25 of the rain shield with the hook connected to the outer wall of the housing 28, so that the hook passes through the hook hole 26, thereby realizing the detachable connection between the housing 28 and the rain shield. This detachable connection method makes the installation and removal of the rain shield very convenient. When the rain shield is damaged or needs cleaning and maintenance, it can be quickly removed for processing and then reinstalled after processing, which improves the convenience of maintenance.

[0038] According to some embodiments of the present invention, the rain shield also includes a rain shield plate 23. A support tube 24 is connected to the side of the rain shield plate 23 facing the support frame 25. The support tube 24 is provided with a threaded hole. The support frame 25 is provided with an opening at the position corresponding to the threaded hole. A bolt 27 passes through the opening and is threadedly connected to the threaded hole to lock the rain shield plate 23 and the support frame 25.

[0039] When installing the rain shield 23, align the threaded hole on the support pipe 24 connected to the side of the rain shield 23 facing the support frame 25 with the corresponding opening on the support frame 25. Then, insert the bolt 27 through the opening and rotate it to connect the threaded hole. This method securely locks the rain shield 23 and the support frame 25 together, ensuring that the rain shield 23 can stably block rainwater and prevent it from shaking or falling off in windy or rainy weather.

[0040] According to the present invention, a box-type substation includes a box body 28, a fan 29 and a fan cover. The box body 28 has an opening, the fan 29 is located at the opening, and the fan cover covers the fan 29 and is detachably connected to the box body 28.

[0041] According to some embodiments of the present invention, a fixing plate 17 is connected to the side of the top plate 13, the first side plate 10 and the third side plate 12 away from the cavity 14. A fixing post 18 is vertically connected to the side of the fixing plate 17 facing the box body 28. A limiting hole is opened in the box body 28 corresponding to the position of the fixing post 18. The fixing post 18 passes through the limiting hole and is provided with a threaded section. The nut in the box body 28 is threadedly connected to the threaded section to lock the box body 28 and the fan cover.

[0042] The fan 29 is positioned at the opening in the housing 28. Then, a fixing post 18, vertically connected to the fixing plate 17 facing one side of the housing 28, passes through a corresponding limiting hole in the housing 28. Finally, a nut is threaded into the fixing post 18 inside the housing 28. This detachable connection method ensures the secure connection between the fan cover and the housing 28 while facilitating the disassembly and replacement of the fan cover when needed.

[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A fan cover for a prefabricated substation, the prefabricated substation comprising a fan and a housing with an opening, the fan being disposed through the opening, characterized in that: It includes a first side plate, a second side plate, a third side plate, and a top plate; the first side plate and the third side plate are both perpendicular to the housing and connected to the housing; the second side plate is parallel to the housing and connects the first side plate and the third side plate; the top plate is connected to the top of the first side plate, the second side plate, and the third side plate to enclose and form a cavity with a vent at one end; the first side plate, the second side plate, and the third side plate are each provided with an extension plate on the side facing the cavity, and all the extension plates together constitute a support structure for supporting the filter screen so that the filter screen covers the vent.

2. The fan cover according to claim 1, characterized in that: It also includes fasteners, with through holes on the extension plate and threaded holes on the filter screen. The fasteners pass through the through holes and are threaded into the threaded holes to lock the extension plate and the filter screen.

3. The fan cover according to claim 2, characterized in that: A limiting plate is connected to the side of the second side plate facing the cavity. The limiting plate is arranged parallel to the extension plate. The gap between the limiting plate and the extension plate matches the thickness of the filter screen and is used to limit the position of the filter screen.

4. The fan cover according to claim 3, characterized in that: The outer wall of the housing is also provided with an opening for clearance. The opening for clearance is connected to the ventilation opening. The filter screen moves through the opening for clearance to the extension plate and covers the ventilation opening.

5. The fan cover according to claim 4, characterized in that: A handle is attached to the side of the filter screen near the clearance opening.

6. The fan cover according to claim 4, characterized in that: The outer wall of the housing is connected to a rain shield, which is located above the avoidance opening and is used to prevent rainwater from entering the cavity along the avoidance opening and the filter screen.

7. The fan cover according to claim 6, characterized in that: The outer wall of the box is connected to a hook, and the rainproof component includes a support frame. The support frame has a hook hole that is adapted to the hook. The hook passes through the hook hole, and the rainproof component is detachably connected to the box.

8. The fan cover according to claim 7, characterized in that: The rain shield also includes a rain shield plate, and a support tube is connected to the side of the rain shield plate facing the support frame. The support tube has a threaded hole, and the support frame has an opening corresponding to the threaded hole. A bolt passes through the opening and is threaded to the threaded hole to lock the rain shield plate and the support frame.

9. A prefabricated substation, characterized in that: The device includes a housing, a fan, and a fan cover as described in any one of claims 1-8, wherein the housing has an opening, the fan is located at the opening, and the fan cover covers the fan and is detachably connected to the housing.

10. The prefabricated substation according to claim 9, characterized in that: A fixing plate is connected to the side of the top plate, the first side plate, and the third side plate away from the cavity. A fixing column is vertically connected to the side of the fixing plate facing the box body. A limit hole is opened in the box body corresponding to the position of the fixing column. The fixing column passes through the limit hole and is provided with a threaded section. The nut in the box body is threaded to the threaded section to lock the box body and the fan cover.

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