A cap

Abstract

The utility model discloses a top cover is applied to box -type substation, is constituted with cover, fan assembly and protective cover. Cover is covered in the outer box top, and it is equipped with opening to communicate inside and outside of outer box. When the inside component of box -type substation runs and heats and needs to radiate heat, the fan assembly fixed in the opening starts, and produces strong suction. The protective cover covered outside the fan assembly, its multiple side plates enclose the cavity and are equipped with the air -permeable mouth, and the hot air accumulated in the outer box is quickly sucked and is discharged to the outside through the air -permeable mouth. The top cover is discharged with the help of fan assembly initiative, and the air flow path formed by the air -permeable mouth is matched, and the air exchange efficiency in the outer box is greatly improved, can quickly dissipate internal heat, effectively reduces the internal temperature. This avoids the inside component because of long time high temperature and the performance is poor, and the life is shortened even damage, significantly enhanced the top cover heat dissipation capacity, has guaranteed the stable and reliable operation of box -type substation.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated substation technology, and in particular to a top cover. Background Technology

[0002] A prefabricated substation is a compact indoor / outdoor power distribution device that integrates high-voltage power reception, transformer step-down, and low-voltage power distribution functions. It is housed within a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, theft-proof, heat-insulated, fully enclosed, and movable steel structure enclosure, representing a new type of substation that integrates electromechanical systems and operates in a fully enclosed manner. The transformer is an indispensable component of the prefabricated substation and also the main heat-generating component. However, the transformer's service life is significantly affected by temperature; prolonged high temperatures will shorten its lifespan. In addition to heat dissipation within the transformer, the prefabricated substation needs better ventilation and heat dissipation conditions. Currently, heat dissipation in prefabricated substation enclosures mainly relies on ventilation holes in the outer enclosure walls and the top cover. However, the current top cover structure has poor heat dissipation capacity, making internal components prone to damage due to overheating. Therefore, improvements to existing technology are necessary. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a top cover that can solve the problem of poor heat dissipation capacity of existing box-type substation top cover structures, which makes internal components prone to damage due to overheating.

[0004] According to the present invention, a top cover includes a cover body, a fan assembly, and a protective cover. The cover body is used to cover the top of the outer casing of the box-type substation. The cover body has an opening for connecting the interior of the outer casing with the outside. The fan assembly is fixedly installed in the opening. The protective cover is placed over the outside of the fan assembly. The protective cover includes multiple side plates that enclose a cavity. Each side plate has a vent. The fan assembly is used to discharge hot air from inside the outer casing to the outside through the vent.

[0005] According to an embodiment of this utility model, a top cover has at least the following beneficial effects: When the top cover of this utility model is applied to a prefabricated substation, the cover covers the top of the outer casing, and its opening connects the inside and outside of the outer casing. When the internal components of the prefabricated substation generate heat during operation, causing the internal temperature to rise and requiring heat dissipation, the fan assembly fixedly installed at the opening starts working, generating a strong suction force to quickly discharge the hot air accumulated inside the outer casing to the external environment through the vents on the side plate of the protective cover covering the fan assembly. Utilizing the active suction and exhaust action of the fan assembly and the air circulation channel formed by the vents, the air exchange efficiency between the inside and outside of the outer casing is greatly enhanced, which can quickly dissipate the internal heat, effectively reduce the internal temperature of the outer casing, and prevent the internal components from degrading in performance, shortening their lifespan, or even being damaged due to prolonged exposure to high temperatures. This significantly improves the heat dissipation capacity of the top cover and ensures the stable and reliable operation of the prefabricated substation.

[0006] According to some embodiments of the present invention, each side plate is connected to a baffle, the baffle is located at the vent and has several vent holes.

[0007] According to some embodiments of the present invention, the top cover further includes a first inclined plate and a second inclined plate, the first inclined plate and the second inclined plate together covering the top of the cavity to seal the top of the cavity.

[0008] According to some embodiments of the present invention, the top cover further includes a mounting base, which is fixedly installed on the opening and has a first mounting position and a second mounting position. The fan assembly includes a first fan and a second fan, with the first fan fixedly installed on the first mounting position and the second fan fixedly installed on the second mounting position. The exhaust direction of the first fan and the second fan is towards the outside of the outer casing, so as to discharge the hot air inside the outer casing to the outside through the vent.

[0009] According to some embodiments of the present invention, the mounting base includes a base, a top seat, and a support plate. The top seat and the support plate are fixedly connected to two opposite sides of the base. The first fan and the second fan are mounted on the top seat. The support plate has a first through hole, and the cover has a first threaded hole. Fasteners pass through the first through hole and are threaded into the first threaded hole to lock the mounting base and the cover.

[0010] According to some embodiments of the present invention, the base is located inside the cavity, and the side of the base is interference-fitted with the side plate.

[0011] According to some embodiments of the present invention, the base is provided with a second threaded hole, the side plate is provided with a second through hole corresponding to the position of the second threaded hole, and the fastener passes through the second through hole and is threadedly connected to the second threaded hole to lock the protective cover and the mounting base.

[0012] According to some embodiments of this utility model, the horizontal plane of the highest point of the vent is lower than the horizontal plane of the top surface of the top seat.

[0013] According to some embodiments of the present invention, a water-blocking strip is provided around the inner wall of the opening, and the water-blocking strip protrudes in a direction away from the inner wall.

[0014] According to some embodiments of the present invention, at least one hanging ear is also connected to the cover, and the hanging ear has a hole for fixing a safety rope.

[0015] 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

[0016] 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 of the cover body according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the mounting base according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the mounting base being installed on the cover body according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the fan assembly installed on the cover according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the structure of the protective cover according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the structure of the protective cover covering the fan assembly in an embodiment of the present utility model.

[0017] Figure label: 10. Cover; 11. Support plate; 12. Base; 13. Top seat; 14. First fan; 15. Second fan; 16. First through hole; 17. Opening; 20. Side plate; 21. Baffle; 22. Vent hole; 23. First inclined plate; 24. Second inclined plate; 25. Second through hole; 26. Water-blocking strip; 27. Hanging lug; 28. Hole; 29. ​​First mounting position; 30. Second mounting position. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] Reference Figures 1-6According to the present invention, a top cover includes a cover body 10, a fan assembly, and a protective cover. The cover body 10 is used to cover the top of the outer box of the box-type substation. The cover body 10 is provided with an opening 17 for connecting the inside of the outer box with the outside. The fan assembly is fixedly installed at the opening 17. The protective cover is placed on the outside of the fan assembly. The protective cover includes multiple side plates 20 that surround and form a cavity. Each side plate 20 is provided with a vent. The fan assembly is used to discharge the hot air inside the outer box to the outside through the vent.

[0023] When the top cover of this utility model is applied to a prefabricated substation, the cover body 10 covers the top of the outer casing, and its opening 17 connects the inside and outside of the outer casing. When the internal components of the prefabricated substation generate heat during operation, causing the internal temperature to rise and requiring heat dissipation, the fan assembly fixedly installed at the opening 17 starts working, generating a strong suction force to quickly exhaust the hot air accumulated inside the outer casing to the external environment through the vents on the protective cover side plate 20 covering the fan assembly. Utilizing the active suction and exhaust action of the fan assembly and the air circulation channel formed by the vents, the air exchange efficiency between the inside and outside of the outer casing is greatly enhanced, which can quickly dissipate internal heat, effectively reduce the internal temperature of the outer casing, and prevent internal components from experiencing performance degradation, shortened lifespan, or even damage due to prolonged exposure to high temperatures. This significantly improves the heat dissipation capacity of the top cover and ensures the reliable operation of the prefabricated substation.

[0024] According to some embodiments of the present invention, each side plate 20 is connected to a baffle 21, the baffle 21 is located at the vent and is provided with a plurality of vent holes 22.

[0025] When the fan assembly starts to dissipate heat, the baffle 21, positioned at the vent, guides and filters the air as it flows. Hot or cold air passes through the vent, first over the baffle 21, and then enters or exits the cavity through several vent holes 22 on the baffle 21. The baffle 21 effectively prevents rainwater, larger particles of debris, dust, etc., from directly entering the protective cover through the vent and damaging the fan assembly, thus providing initial protection and filtration, extending the service life of the fan assembly, while not affecting normal airflow and ensuring effective heat dissipation.

[0026] According to some embodiments of the present invention, the top cover also includes a first inclined plate 23 and a second inclined plate 24, which together cover the top of the cavity to seal the top of the cavity.

[0027] During the operation of the prefabricated substation, the first inclined plate 23 and the second inclined plate 24 always cover the top of the cavity. When it rains, rainwater falls on the first inclined plate 23 and the second inclined plate 24. Because the inclined plates are tilted, the rainwater slides off the surface of the inclined plates and does not enter the cavity. The sealed top of the cavity effectively prevents rainwater, dust, and other external substances from entering the cavity inside the protective cover, thereby avoiding these substances from corroding or damaging the fan components. This provides a relatively dry and clean working environment for the fan components, ensuring the normal operation of the fan components and the stable performance of their heat dissipation function.

[0028] According to some embodiments of the present invention, the top cover also includes a mounting base, which is fixedly installed at the opening 17 and has a first mounting position 29 and a second mounting position 30. The fan assembly includes a first fan 14 and a second fan 15. The first fan 14 is fixedly installed at the first mounting position 29, and the second fan 15 is fixedly installed at the second mounting position 30. The exhaust direction of the first fan 14 and the second fan 15 is towards the outside of the outer casing, so as to discharge the hot air inside the outer casing to the outside through the vent 22.

[0029] When the internal temperature of the prefabricated substation rises due to heat generated by the operation of components, requiring heat dissipation, the first fan 14 and the second fan 15 start simultaneously. Both fans exhaust air towards the outside of the enclosure. Driven by a motor, the high-speed rotation of the blades generates a strong suction force, rapidly drawing the hot air accumulated inside the enclosure through the vents 22 on the protective cover and discharging it into the external environment. Compared to a single fan, this significantly enhances the air extraction capacity and accelerates the air exchange efficiency between the inside of the enclosure and the outside. It can dissipate internal heat more quickly and effectively, significantly reducing the internal temperature of the enclosure and preventing internal components from experiencing performance degradation, shortened lifespan, or even damage due to prolonged exposure to high temperatures. This greatly improves the heat dissipation performance of the top cover and ensures the stable and reliable operation of the prefabricated substation.

[0030] According to some embodiments of the present invention, the mounting base includes a base 12, a top seat 13, and a support plate 11. The top seat 13 and the support plate 11 are fixedly connected to the two opposite sides of the base 12. A first fan 14 and a second fan 15 are mounted on top of the top seat 13. The support plate 11 is provided with a first through hole 16, and the cover 10 is provided with a first threaded hole. Fasteners pass through the first through hole 16 and are threadedly connected to the first threaded hole to lock the mounting base and the cover 10.

[0031] When installing the top cover, place the mounting base at the opening 17 of the cover body 10, align the first through hole 16 on the support plate 11 with the first threaded hole on the cover body 10, and then use fasteners (such as bolts) to pass through the first through hole 16 and screw them into the first threaded hole. Securely lock the mounting base onto the cover body 10 through the threaded connection, and then assemble the first fan 14 and the second fan 15 on top of the top seat 13.

[0032] According to some embodiments of the present invention, the base 12 is located inside the cavity, and the side of the base 12 is interference-fitted with the side plate 20.

[0033] According to some embodiments of the present invention, a second threaded hole is provided on the base 12, and a second through hole 25 is provided on the side plate 20 corresponding to the position of the second threaded hole. Fasteners pass through the second through hole 25 and are threadedly connected to the second threaded hole to lock the protective cover and the mounting base.

[0034] After the initial installation of the mounting base and cover 10 is completed, the protective cover is placed in a suitable position so that the second through hole 25 on the side plate 20 is aligned with the second threaded hole on the base 12. Then, fasteners (such as bolts) are used to pass through the second through hole 25 and screwed into the second threaded hole to securely lock the protective cover and the mounting base together through the threaded connection.

[0035] According to some embodiments of the present invention, the horizontal plane of the highest point of the vent is lower than the horizontal plane of the top surface of the top seat 13.

[0036] When rain falls, because the highest point of the vent is at a lower level than the top surface of the top seat 13, the rainwater is unlikely to cross the top surface of the top seat 13 even if it is pushed by the wind, thus preventing the rainwater from entering the outer casing through the installation seams of the fan assembly.

[0037] According to some embodiments of the present invention, a water-blocking strip 26 is provided around the inner wall of the opening 17, and the water-blocking strip 26 protrudes in a direction away from the inner wall.

[0038] When it rains, rainwater falls on the cover 10, and some of it may flow towards the opening 17. At this time, the water-blocking strip 26 installed around the inner wall of the opening 17 will prevent further inflow of rainwater. Since the water-blocking strip 26 protrudes away from the inner wall, the rainwater will slide down the surface of the water-blocking strip 26 and will not enter the interior of the outer box.

[0039] According to some embodiments of the present invention, at least one hanging ear 27 is also connected to the cover 10, and the hanging ear 27 has a hole 28 for fixing the safety rope.

[0040] When performing high-altitude dismantling and assembly operations on the wind turbines mounted on the roof of a prefabricated substation, workers first securely fix one end of the safety rope to a reliable safety anchor point, and then pass the other end through a specially designed hole 28 on the lug 27 for securing the safety rope and ensure a reliable connection. During subsequent dismantling and assembly operations, workers, with the traction and protection of the safety rope, can move their bodies relatively safely and use tools to dismantle or install the wind turbines in a high-altitude environment. Even in the event of an accident, such as slipping, the safety rope will promptly suspend the worker in the air, preventing a direct fall and reducing the risk of safety problems.

[0041] 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 top cover, characterized in that, include: A cover is used to cover the top of the outer casing of the prefabricated substation. The cover has an opening for connecting the interior of the outer casing with the outside. The fan assembly is fixedly installed in the opening; A protective cover is provided over the outside of the fan assembly, and the protective cover includes multiple side plates that enclose and form a cavity; Each of the side panels is provided with a vent, and the fan assembly is used to discharge the hot air inside the outer casing to the outside through the vent.

2. The top cover according to claim 1, characterized in that, Each side plate is connected to a baffle, which is located at the vent and has several vent holes.

3. The top cover according to claim 1, characterized in that, It also includes a first inclined plate and a second inclined plate, which together cover the top of the cavity to seal the top of the cavity.

4. The top cover according to claim 2, characterized in that, It also includes a mounting base, which is fixedly installed in the opening and has a first mounting position and a second mounting position. The fan assembly includes a first fan and a second fan. The first fan is fixedly installed in the first mounting position and the second fan is fixedly installed in the second mounting position. The exhaust direction of the first fan and the second fan is towards the outside of the outer casing so as to discharge the hot air inside the outer casing to the outside through the vent.

5. The top cover according to claim 4, characterized in that, The mounting base includes a base, a top seat, and a support plate. The top seat and the support plate are fixedly connected to the two opposite sides of the base. The first fan and the second fan are mounted on the top seat. The support plate has a first through hole, and the cover has a first threaded hole. Fasteners pass through the first through hole and are threaded into the first threaded hole to lock the mounting base and the cover.

6. The top cover according to claim 5, characterized in that, The base is located inside the cavity, and the side of the base is interference-fitted with the side plate.

7. The top cover according to claim 5, characterized in that, The base has a second threaded hole, and the side plate has a second through hole corresponding to the position of the second threaded hole. The fastener passes through the second through hole and is threaded to the second threaded hole to lock the protective cover and the mounting base.

8. The top cover according to claim 5, characterized in that, The highest point of the vent is located at a horizontal level that is lower than the top surface of the top seat.

9. The top cover according to claim 1, characterized in that, A water-blocking strip is provided around the inner wall of the opening, and the water-blocking strip protrudes in a direction away from the inner wall.

10. The top cover according to claim 1, characterized in that, The cover is also connected to at least one hanging ear, and the hanging ear has a hole for fixing a safety rope.

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