A modular top exhaust structure for prefabricated substation modules

Abstract

This utility model discloses a modular top exhaust structure for prefabricated substation cabins, relating to the field of prefabricated cabin ventilation technology. It includes: a mounting base; a dustproof component disposed at the bottom of the mounting base; an air outlet component disposed on the outside of the mounting base; a snap-fit ​​component symmetrically disposed inside the mounting base and cooperating with the air outlet component to achieve rapid installation and disassembly of the modular top exhaust structure for prefabricated substation cabins; an exhaust mechanism disposed at the top of the mounting base and connected to the air outlet component; a water-blocking component disposed on the outside of the air outlet component to prevent water from splashing into the exhaust structure; and a cover plate component disposed on the outside of the water-blocking component and connected to the air outlet component. This invention achieves a double-layer waterproofing effect by using outward-facing folded edge plates and water-blocking strips, and the exhaust mechanism can be quickly disassembled via snap-fit ​​components, greatly improving the convenience of maintenance and repair.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated cabin ventilation technology, specifically to a modular top exhaust structure for a prefabricated substation cabin. Background Technology

[0002] As a crucial infrastructure in the power system, substations undertake core functions such as voltage transformation and power distribution, serving as a key hub connecting the generation and consumption ends. With the advancement of smart grids and modular construction concepts, prefabricated substation modules have emerged and gained widespread application. A prefabricated substation module integrates the main equipment of a substation using a prefabricated module structure. It integrates transformers, high-voltage switchgear, low-voltage switchgear, control and protection systems, and other major equipment into a high-strength, weather-resistant module structure. It has significant advantages such as short construction period, small footprint, high integration, and strong environmental adaptability, making it particularly suitable for scenarios such as urban expansion, temporary power supply, and power grid construction in remote areas.

[0003] Currently, the exhaust ventilation of prefabricated substation cabins, especially transformer room ventilation, is usually installed on walls, doors, or inside the cabin. While this layout can achieve basic ventilation, it has a fundamental drawback: inconvenient maintenance. It cannot be maintained without power interruption. If the exhaust structure malfunctions or requires regular cleaning and maintenance, it is often necessary to interrupt equipment operation and open the cabin door. This not only increases operation and maintenance costs and power outage losses, but also poses a potential risk to the continuous and stable operation of the power grid and reduces power supply reliability. Therefore, it is necessary to study a top exhaust ventilation structure for prefabricated substation cabins that allows for rapid maintenance.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a modular top exhaust structure for prefabricated substation cabins to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A modular top exhaust structure for a prefabricated substation module includes: a mounting base; a dustproof component disposed at the bottom of the mounting base; an air outlet component disposed on the outside of the mounting base; a snap-fit ​​component symmetrically disposed inside the mounting base and cooperating with the air outlet component to enable rapid installation and disassembly of the modular top exhaust structure for the prefabricated substation module; an exhaust mechanism disposed at the top of the mounting base and connected to the air outlet component; a water-blocking component disposed on the outside of the air outlet component to prevent water from splashing into the exhaust structure; and a cover plate component disposed on the outside of the water-blocking component and connected to the air outlet component.

[0008] Furthermore, in order to achieve the dustproof effect, the dustproof plate can effectively intercept larger particles of dust, lint, insects and other impurities carried in the air, preventing them from entering the equipment and causing blockages or covering electronic components, thus affecting the operation of the fan. The dustproof component includes a dustproof plate set at the bottom of the mounting base. The top of the dustproof plate is provided with several clips that penetrate the mounting base. The dustproof plate and the mounting base are connected by several bolts. The cross-section of the clips is L-shaped, and the clips are evenly arranged and distributed in a rectangular pattern at the top of the dustproof plate.

[0009] Furthermore, to ensure both ventilation and waterproofing, the ventilation operation is ensured through the combined action of the folded edge plate and the air outlet. The special angle of the folded edge plate prevents rainwater from entering from the air outlet area, thus achieving both ventilation efficiency and waterproofing. The air outlet component includes: an air duct plate, set around the mounting base; two air outlets, located on the top of the air duct plate and configured to cooperate with the top of the ventilation mechanism; a folded edge plate, located on one side of the bottom of the two air outlets and configured to cooperate with the water-blocking component; the included angle between the side of the folded edge plate near the ventilation mechanism and the side of the air duct plate near the water-blocking component is an acute angle.

[0010] Furthermore, to achieve rapid disassembly and maintenance, a quick-release mechanism is formed through the combined action of the spring and the locking block, ensuring that the locking block is firmly engaged with the air outlet component and guaranteeing stable and reliable operation. During maintenance, simply press the locking block to easily release the locking state, enabling rapid disassembly and maintenance. This significantly improves the maintenance efficiency and ease of operation of the exhaust structure. The locking component includes a locking base located at the bottom of the inner wall of the mounting base. A spring is installed inside the locking base, and a locking block that penetrates the air outlet component is located at the end of the spring away from the mounting base. The locking block has a U-shaped cross-section and an arc-shaped top.

[0011] Furthermore, in order to achieve the exhaust effect, the fan can be installed on the fan mounting plate to fully utilize the air volume and air pressure performance, improve the overall ventilation efficiency, and ensure the stable operation of the exhaust structure. The exhaust mechanism includes a fan mounting plate connected to the bottom of the inner wall of the air outlet component. A fan is installed at the top of the fan mounting plate, and a protective grid frame is installed on the outside of the fan. The protective grid frame is connected to the fan mounting plate by bolts.

[0012] Furthermore, to achieve a dual water-blocking effect, the water-blocking strip prevents water from splashing into the air inlet and outlet, while simultaneously forming a continuous sealed barrier with the folded edge plate, effectively blocking rainwater, splashing water, and moisture intrusion. Building upon the initial waterproofing of the folded edge plate, the water-blocking strip acts as a second line of defense, further preventing water droplet penetration and significantly improving the overall waterproofing level of the exhaust structure, ensuring internal electrical safety and stable operation. The water-blocking component includes an air outlet mesh frame surrounding the air outlet assembly, which is connected to the air outlet assembly and the cover plate assembly via several bolts. A water-blocking strip, matching the air outlet assembly, is connected to the top center of the air outlet mesh frame, and the water-blocking strip has a V-shaped cross-section of 135 degrees.

[0013] Furthermore, to achieve both airflow guidance and protection, the duct cover and the guide plate work together to allow the duct cover to act as an outer barrier, effectively blocking rainwater and preventing it from directly intruding into the internal duct. The inner quadrangular pyramidal guide plate not only enhances structural strength but also uses its inclined surface to guide airflow smoothly out, reducing eddy current losses and improving ventilation efficiency. The cover assembly includes a duct cover set outside the water-blocking assembly, and the duct cover and the water-blocking assembly are connected by several bolts. The inner bottom of the duct cover is provided with a guide plate connected to it, and the guide plate and the duct cover are connected by several bolts. The guide plate is a quadrangular pyramidal structure formed by four triangular plates connected in sequence.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This invention achieves a double-layer waterproof effect by setting outward-facing folded edge plates and water-blocking strips. It also achieves a dustproof effect by setting stainless steel dustproof components and air outlet mesh frames at the air inlet and outlet. Furthermore, the exhaust mechanism can be quickly disassembled through snap-fit ​​components without power interruption or door opening, greatly improving the convenience of maintenance and repair, reducing the impact on users, and making it highly practical.

[0016] 2. Through the snap-fit ​​assembly, a quick-release mechanism is formed by the cooperation of the spring and the snap-fit ​​block, which makes the snap-fit ​​block firmly snapped into the air outlet assembly, ensuring stable and reliable operation. During maintenance, simply press the snap-fit ​​block to easily release the locked state, realizing quick disassembly and maintenance, which greatly improves the maintenance efficiency and operation convenience of the exhaust structure.

[0017] 3. The water-blocking components prevent water from splashing into the air inlet and outlet under the action of the water-blocking strip. At the same time, they form a continuous sealed barrier with the folded edge plate, effectively blocking rainwater, splashing water and moisture intrusion. On the basis of the initial waterproofing of the folded edge plate, the water-blocking strip acts as a second line of defense to further prevent water droplet penetration, significantly improving the overall waterproofing level of the exhaust structure and ensuring the internal electrical safety and stable operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a modular top exhaust structure for a prefabricated substation according to an embodiment of the present utility model;

[0020] Figure 2 This is one of the partial structural schematic diagrams of a modular top exhaust structure for a prefabricated substation according to an embodiment of the present utility model;

[0021] Figure 3 This is a second partial structural schematic diagram of a modular top exhaust structure for a prefabricated substation according to an embodiment of the present utility model;

[0022] Figure 4 This is a partial structural schematic diagram of a modular top exhaust structure for a prefabricated substation according to an embodiment of the present utility model;

[0023] Figure 5 This is the fourth partial structural schematic diagram of a modular top exhaust structure for a prefabricated substation according to an embodiment of the present utility model;

[0024] Figure 6 This is the fifth partial structural schematic diagram of a modular top exhaust structure for a prefabricated substation according to an embodiment of the present utility model;

[0025] Figure 7 This is a schematic diagram of the snap-fit ​​assembly in a modular top exhaust structure for a prefabricated substation according to an embodiment of the present utility model.

[0026] Figure 8 This is a schematic diagram of the dustproof component in a modular top exhaust structure of a prefabricated substation according to an embodiment of the present utility model;

[0027] Figure 9 This is a structural schematic diagram of the water-blocking component and the cover plate component in a structural schematic diagram of a modular top exhaust structure for a prefabricated substation according to an embodiment of the present utility model.

[0028] Figure 10 This is a cross-sectional view of a modular top exhaust structure for a prefabricated substation compartment in practical application according to an embodiment of the present utility model.

[0029] Figure 11 yes Figure 10 Enlarged view of point A in the middle;

[0030] Figure 12 This is a three-dimensional assembly drawing of the mounting base, snap-fit ​​components and dustproof components in a modular top exhaust structure of a prefabricated substation according to an embodiment of the present utility model.

[0031] Figure 13 This is a schematic diagram illustrating the waterproof splash effect of a modular top exhaust structure for a prefabricated substation compartment in practical application, according to an embodiment of the present utility model.

[0032] In the picture:

[0033] 1. Mounting base; 2. Dustproof components; 201. Dustproof plate; 202. Clip; 3. Air outlet components; 301. Air duct plate; 302. Air outlet; 303. Folded edge plate; 4. Snap-fit ​​components; 401. Snap-fit ​​base; 402. Spring; 403. Snap-fit ​​block; 5. Exhaust mechanism; 501. Fan mounting plate; 502. Fan; 503. Protective grid frame; 6. Water barrier components; 601. Air outlet grid frame; 602. Water barrier strip; 7. Cover plate components; 701. Air duct cover plate; 702. Guide plate. Detailed Implementation

[0034] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0035] According to an embodiment of the present invention, a modular top exhaust structure for prefabricated substation cabins is provided.

[0036] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-13 As shown, the modular top exhaust structure of the prefabricated substation cabin according to an embodiment of the present invention includes: a mounting base 1; a dustproof component 2 disposed at the bottom of the mounting base 1; an air outlet component 3 disposed on the outside of the mounting base 1; a snap-fit ​​component 4 symmetrically disposed inside the mounting base 1 and cooperating with the air outlet component 3, for realizing the rapid installation and disassembly of the modular top exhaust structure of the prefabricated substation cabin; an exhaust mechanism 5 disposed at the top of the mounting base 1 and connected to the air outlet component 3; a water-blocking component 6 disposed on the outside of the air outlet component 3 for preventing water from splashing into the exhaust structure; and a cover plate component 7 disposed on the outside of the water-blocking component 6 and connected to the air outlet component 3.

[0037] In one embodiment, the dustproof component 2 includes a dustproof plate 201 disposed at the bottom of the mounting base 1. The top of the dustproof plate 201 is provided with a plurality of locking blocks 202 that penetrate the mounting base 1. The dustproof plate 201 and the mounting base 1 are connected by a plurality of bolts. The cross-section of the locking blocks 202 is L-shaped, and the plurality of locking blocks 202 are evenly arranged and rectangularly distributed at the top of the dustproof plate 201. Under the interception effect of the dustproof plate 201, it can effectively intercept larger particulate dust, flying lint, insects and other impurities carried in the air, preventing them from entering the equipment and causing blockage or covering of electronic components, thus affecting the operation of the fan 502.

[0038] In one embodiment, the air outlet assembly 3 includes: an air duct plate 301 disposed around the mounting base 1; two air outlets 302 located on the top of the air duct plate 301 and cooperating with the top of the exhaust mechanism 5; and a folded edge plate 303 disposed on one side of the bottom of the two air outlets 302 and cooperating with the water-blocking component 6. The angle formed between the side of the folded edge plate 303 near the exhaust mechanism 5 and the side of the air duct plate 301 near the water-blocking component 6 is an acute angle. With the cooperation of the folded edge plate 303 and the air outlets 302, exhaust operation is ensured, and the special angle of the folded edge plate 303 prevents rainwater from entering from the air outlet 302 area, thus ensuring ventilation efficiency while achieving waterproofing.

[0039] In one embodiment, the snap-fit ​​assembly 4 includes a snap-fit ​​base 401 disposed at the bottom of the inner wall of the mounting base 1. A spring 402 is disposed inside the snap-fit ​​base 401. A snap-fit ​​block 403, which penetrates the air outlet assembly 3, is disposed at the end of the spring 402 away from the mounting base 1. The snap-fit ​​block 403 has a U-shaped cross-section and an arc-shaped top. Under the cooperative action of the spring 402 and the snap-fit ​​block 403, a quick-release mechanism is formed, which makes the snap-fit ​​block 403 firmly snapped into the air outlet assembly 3, ensuring stable and reliable operation. During maintenance, the locking state can be easily released by simply pressing the snap-fit ​​block 403, realizing quick disassembly and maintenance, which greatly improves the maintenance efficiency and operation convenience of the exhaust structure.

[0040] In one embodiment, the exhaust mechanism 5 includes a fan mounting plate 501 connected to the bottom of the inner wall of the air outlet assembly 3. A fan 502 is provided at the top of the fan mounting plate 501, and a protective grid frame 503 is provided on the outside of the fan 502. The protective grid frame 503 is connected to the fan mounting plate 501 by bolts. Under the action of the fan 502 mounted on the fan mounting plate 501, the fan 502 can fully exert its air volume and air pressure performance, improve the overall ventilation efficiency, and ensure the stable operation of the exhaust structure.

[0041] In one embodiment, the water-blocking component 6 includes an air outlet mesh frame 601 arranged around the air outlet component 3. The air outlet mesh frame 601 is connected to the air outlet component 3 and the cover plate component 7 by several bolts. A water-blocking strip 602 that cooperates with the air outlet component 3 is connected to the top center of the air outlet mesh frame 601. The cross-section of the water-blocking strip 602 is a V-shaped structure with a 135-degree angle. Under the action of the water-blocking strip 602, water splashes into the air inlet and outlet 302, and at the same time, it forms a continuous sealing barrier with the folded edge plate 303, effectively blocking rainwater, splash water and moisture intrusion. On the basis of the initial waterproofing of the folded edge plate 303, the water-blocking strip 602 serves as a second line of defense to further prevent water droplet penetration, significantly improve the overall waterproofing level of the exhaust structure, and ensure internal electrical safety and stable operation.

[0042] In one embodiment, the cover assembly 7 includes a duct cover 701 disposed outside the water-blocking assembly 6, which is connected to the water-blocking assembly 6 by a number of bolts. A guide plate 702 is disposed at the inner bottom of the duct cover 701 and connected thereto. The guide plate 702 is connected to the duct cover 701 by a number of bolts, and the guide plate 702 is a quadrangular pyramid structure formed by four triangular plates connected in sequence. With the combined action of the duct cover 701 and the guide plate 702, the duct cover 701 acts as an outer barrier, effectively blocking rainwater and preventing it from directly intruding into the internal duct. The inner quadrangular pyramidal guide plate 702 not only enhances structural strength but also utilizes its inclined surface to guide airflow smoothly out, reducing eddy current losses and improving ventilation efficiency.

[0043] Furthermore, it should be noted that the aforementioned mounting base 1 is welded to the top cover of the prefabricated substation compartment; and the aforementioned dustproof plate 201 can specifically be a welded stainless steel mesh to meet the protection level requirements of the prefabricated compartment; the air outlet assembly 3 is welded from four duct plates 301 on the front, back, left, and right sides, and the folded edge plate 303 has a waterproof design with an outward 45-degree fold; the water baffle strip 602 is welded to the air outlet frame 601 and then bolted to the perimeter of the air outlet assembly 3. The water baffle strip 602 and the folded edge plate 303 work together to provide waterproofing; the fan mounting plate 501 is welded inside the four duct plates 301; the fan 502 and the protective grid frame 503 are bolted to the fan mounting plate 501, and rubber pads are provided at the bolt locations to reduce noise; the guide plate 702 is inside the duct cover plate 701 and is formed by welding four triangular plates into a square pyramid shape. This not only meets the dustproof and waterproof requirements of the prefabricated compartment but also meets the need for rapid maintenance of the fan 502 without power interruption.

[0044] Furthermore, it should be noted that the aforementioned mounting base 1 and air outlet assembly 3 are quickly connected and disassembled via snap-fit ​​assembly 4. The mounting base 1 is welded to the prefabricated cabin top cover and protrudes to a certain height to cooperate with the air outlet assembly 3; the dustproof assembly 2 is connected to the mounting base 1 using a snap-fit ​​and slot-like connection, that is, it is connected by a snap block 202 and secured with bolts; the dustproof plate 201 is specifically a welded stainless steel dustproof mesh; the snap-fit ​​base 401 is welded inside the mounting base 1.

[0045] Furthermore, it should be noted that the aforementioned fan 502 uses plug-in terminals to connect to the power supply line inside the prefabricated pod. The exhaust grille 601 specifically consists of a dustproof mesh welded with stainless steel.

[0046] In addition, it should be noted that the bottom of the above-mentioned air outlet component 3 is provided with a slot that cooperates with the snap-fit ​​block 403. During installation, the air outlet component 3 sits on the mounting base 1. After it is in place, the snap-fit ​​block 403 extends out of the slot of the air outlet component 3 under the elastic force of the spring 402. Since the lower part of the snap-fit ​​block 403 is flat, the air outlet component 3 cannot be loosened upward.

[0047] In addition, it should be noted that the aforementioned mounting base 1 and dustproof plate 201 are engaged with the through groove at the bottom of the mounting base 1 using a locking block 202, similar to a male and female snap-fit ​​and slot structure, and are secured with bolts to prevent them from falling onto live parts, further ensuring safety; the locking base 401 is welded to the inside of the mounting base 1, and a rectangular hole is opened on the mounting base 1 for the locking block 403 to extend out.

[0048] In addition, it should be noted that the fan mounting plate 501 is welded inside the cover plate assembly 7 at a certain height from the bottom. The fan 502 adopts an external rotor axial flow fan, and shock-absorbing rubber pads are installed at the mounting point to reduce noise.

[0049] In addition, it should be noted that the four air duct plates 301 mentioned above are welded into a square shape, and the upper part of the air duct plate 301 has a long strip air outlet 302, which plays a role in preventing water splashing through the folded edge plate 303.

[0050] In addition, it should be noted that the water-blocking strip 602 is welded and fixed on the above-mentioned air outlet mesh frame 601. The folded edge plate 303 and the water-blocking strip 602 can achieve a double-layer waterproof splash effect.

[0051] Furthermore, it should be noted that when the above installation is completed, the snap-fit ​​block 403 extends out of the air duct plate 301. Disassembly requires manually pressing down the snap-fit ​​block 403 and then lifting the air outlet assembly 3. Rainwater splashes from various angles can be blocked by the air duct cover 701, the water-blocking strip 602, the air duct plate 301, and the folded edge plate 303 to prevent water from entering the cabin, thus providing a waterproof effect.

[0052] In addition, it should be noted that the square ventilation holes of the dustproof plate 201 and the air outlet mesh frame 601 are made of welded stainless steel mesh, which achieves the dustproof effect.

[0053] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0054] In practical applications, the fan 502 is started by the power supply inside the prefabricated cabin, and with the cooperation of the air outlet component 3 and the water baffle component 6, the prefabricated cabin is ventilated. The double-layer waterproof splash effect is achieved by the folded edge plate 303 and the water baffle strip 602. The dustproof effect is achieved by the welded stainless steel mesh at the square ventilation holes of the dustproof plate 201 and the air outlet frame 601. When the exhaust structure needs to be inspected, the exhaust structure can be quickly disassembled by the operator pressing the snap block 403 and then lifting the air outlet component 3.

[0055] In summary, by utilizing the above-mentioned technical solution of this utility model, a double-layer waterproofing effect is achieved by setting outward-facing folded edge plate 303 and water-blocking strip 602. Dust prevention is achieved by setting stainless steel dustproof components 2 and air outlet mesh frame 601 at the air inlet and outlet. Furthermore, the exhaust mechanism 5 can be quickly disassembled via snap-fit ​​component 4 without power interruption or door opening, greatly improving the convenience of maintenance and repair, reducing the impact on users, and demonstrating strong practicality. Through the snap-fit ​​component 4, a linked quick-release mechanism is formed under the combined action of spring 402 and snap-fit ​​block 403, ensuring that snap-fit ​​block 403 is firmly engaged with air outlet component 3. To ensure stable and reliable operation, during maintenance, simply press the locking block 403 to easily release the locked state, enabling quick disassembly and maintenance, significantly improving the maintenance efficiency and ease of operation of the exhaust structure; through the water-blocking component 6, water splashes into the air inlet and outlet 302 under the action of the water-blocking strip 602, and at the same time, it forms a continuous sealing barrier with the folded edge plate 303, effectively blocking rainwater, splashing water and moisture intrusion; on the basis of the initial waterproofing of the folded edge plate 303, the water-blocking strip 602, as a second line of defense, further prevents water droplet penetration, significantly improving the overall waterproof level of the exhaust structure, ensuring internal electrical safety and stable operation.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular top exhaust structure for a prefabricated substation cabin, characterized in that, include: Mounting base (1); A dustproof component (2) is disposed at the bottom of the mounting base (1); An air outlet assembly (3) is disposed on the outside of the mounting base (1); The snap-fit ​​assembly (4) is symmetrically arranged inside the mounting base (1) and is configured in conjunction with the air outlet assembly (3) to enable the rapid installation and disassembly of the modular top exhaust structure of the prefabricated substation cabin; The exhaust mechanism (5) is located at the top of the mounting base (1) and is connected to the air outlet assembly (3); A water-blocking component (6) is disposed on the outside of the air outlet component (3) to prevent water from splashing into the interior of the exhaust structure; The cover assembly (7) is disposed on the outside of the water-blocking assembly (6) and connected to the air outlet assembly (3).

2. The modular top exhaust structure of a prefabricated substation cabin according to claim 1, characterized in that, The dustproof component (2) includes a dustproof plate (201) disposed at the bottom of the mounting base (1). The top of the dustproof plate (201) is provided with several locking blocks (202) that penetrate the mounting base (1). The dustproof plate (201) and the mounting base (1) are connected by several bolts.

3. The modular top exhaust structure for a prefabricated substation cabin according to claim 2, characterized in that, The cross-section of the card block (202) is L-shaped, and several of the card blocks (202) are evenly arranged and distributed in a rectangular shape at the top of the dustproof plate (201).

4. The modular top exhaust structure for a substation prefabricated cabin of claim 1, wherein, The air outlet assembly (3) includes: The air duct plate (301) is disposed around the mounting base (1); Two air outlets (302) are provided on the top of the air duct plate (301) and are configured to cooperate with the top of the exhaust mechanism (5); A folded edge plate (303) is disposed on one side of the bottom of the two air outlets (302) and is configured in conjunction with the water baffle assembly (6); The angle formed between the side of the folded edge plate (303) near the exhaust mechanism (5) and the side of the air duct plate (301) near the water-blocking component (6) is an acute angle.

5. The substation prefabricated cabin modular top exhaust structure according to claim 1, characterized in that, The snap-fit ​​assembly (4) includes a snap-fit ​​base (401) disposed at the bottom of the inner wall of the mounting base (1). A spring (402) is disposed inside the snap-fit ​​base (401). A snap-fit ​​block (403) is disposed at the end of the spring (402) away from the mounting base (1) and penetrates the air outlet assembly (3).

6. The modular top exhaust structure of a substation prefabricated cabin according to claim 5, characterized in that, The cross-section of the snap-fit ​​block (403) is U-shaped, and the top of the snap-fit ​​block (403) is arc-shaped.

7. The substation prefabricated cabin modular top exhaust structure according to claim 1, characterized in that, The exhaust mechanism (5) includes a fan mounting plate (501) connected to the bottom of the inner wall of the air outlet assembly (3). A fan (502) is provided at the top of the fan mounting plate (501). A protective grid frame (503) is provided on the outside of the fan (502). The protective grid frame (503) is connected to the fan mounting plate (501) by bolts.

8. The substation prefabricated cabin modular top exhaust structure according to claim 1, characterized in that, The water-blocking component (6) includes an air outlet mesh frame (601) disposed around the air outlet component (3), and the air outlet mesh frame (601) is connected to the air outlet component (3) and the cover plate component (7) by a number of bolts. The top center of the air outlet frame (601) is connected to a water baffle (602) that cooperates with the air outlet component (3). The cross-section of the water baffle (602) is a V-shaped structure with a 135-degree angle.

9. The substation prefabricated cabin modular top exhaust structure according to claim 1, characterized in that, The cover plate assembly (7) includes a duct cover plate (701) disposed outside the water-blocking assembly (6), and the duct cover plate (701) and the water-blocking assembly (6) are connected by a number of bolts. The inner bottom of the duct cover (701) is provided with a guide plate (702) connected thereto. The guide plate (702) and the duct cover (701) are connected by several bolts, and the guide plate (702) is a four-sided pyramid structure formed by four triangular plates connected in sequence.

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