Outdoor box-type substation

By installing rain covers, water collection tanks, and floating components at the heat dissipation holes of outdoor prefabricated substations, the heat dissipation holes are automatically covered in rainy weather, solving the problems of equipment dampness and short circuits caused by water ingress during rainy days, while maintaining good heat dissipation performance in non-rainy weather.

CN223744179UActive Publication Date: 2025-12-30LUBIAN ELECTRICAL CO LTD
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Patent Information

Application Number
CN202520240343.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2025-12-30
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

The ventilation holes of existing outdoor prefabricated substations are prone to water ingress during rainy weather, which can cause equipment to become damp and short-circuit, and also affect the heat dissipation effect during non-rainy weather.

Method used

A heat dissipation hole structure with a rain cover and a water collection trough was designed. The floating component and rainproof foam board automatically cover the heat dissipation hole when it rains. Rainwater is collected through the water collection trough and the guide pipe. The rise of the rainproof foam board is controlled to cover the heat dissipation hole to prevent rainwater from splashing. An overflow pipe is set to discharge excess rainwater.

Benefits of technology

It effectively prevents rainwater from splashing into the equipment during rainy weather, reducing moisture and short circuits, while maintaining good heat dissipation during non-rainy weather.

✦ Generated by Eureka AI based on patent content.

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Abstract

An outdoor box-type transformer substation comprises a box body, a plurality of heat dissipation hole sets are formed in the rear side face of the box body in the vertical direction, each heat dissipation hole set comprises a plurality of heat dissipation holes arranged in the horizontal direction, a rainproof cover is arranged on the top face of the box body, and water collecting grooves are formed in the periphery of the rainproof cover; light rain-shielding foam plates are arranged on the outer sides of the heat dissipation hole sets, long holes corresponding to the multiple heat dissipation hole sets are formed in the rain-shielding foam plates, water storage tanks are arranged below the outer sides of the heat dissipation hole sets, the lower portions of the rain-shielding foam plates are slidably connected into the water storage tanks through floating assemblies, and the rain-shielding foam plates can move up and down in the vertical direction. The long holes and the adjacent heat dissipation hole sets can be arranged in an overlapped mode when the lower end face of the floating assembly makes contact with the bottom face of the water storage tank. According to the utility model, the rain-shielding foam plates can be easily supported upwards by rainwater, and the heat dissipation hole groups are shielded by the rain-shielding foam plates between the adjacent long holes, so that rainwater splashing into the box body is reduced, and the phenomena that equipment in the box body is affected with damp and is short-circuited are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of prefabricated substation technology, specifically an outdoor prefabricated substation. Background Technology

[0002] Outdoor prefabricated substations are compact power equipment that integrates transformers, switchgear, protection devices, and control equipment. They are widely used in urban power distribution networks, industrial areas, and remote regions.

[0003] Existing outdoor prefabricated substations have a box-like structure, with most ventilation holes typically located on the sides to ensure effective heat dissipation in high-temperature environments. However, these ventilation holes are prone to water ingress during rainy weather, leading to internal moisture buildup and even short circuits. Although sloping rain covers are installed above the ventilation holes, these covers obstruct some of the upper ventilation holes, affecting airflow into and out of the prefabricated substation in dry weather, thus impacting its heat dissipation. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model provides an outdoor prefabricated substation.

[0005] The technical solution of this utility model is as follows:

[0006] An outdoor box-type substation includes a box body. Multiple sets of heat dissipation holes are opened vertically on the rear side of the box body. The heat dissipation hole sets include multiple heat dissipation holes arranged horizontally. A rain cover is provided on the top surface of the box body, and a water collection tank is provided around the rain cover.

[0007] A lightweight rainproof foam board is provided on the outside of the heat dissipation hole group. The rainproof foam board has elongated holes corresponding to multiple heat dissipation hole groups. A water storage tank is provided below the outside of the heat dissipation hole group. The lower part of the rainproof foam board is slidably connected to the water storage tank through a floating component. The rainproof foam board can move up and down in the vertical direction. The elongated holes and adjacent heat dissipation hole groups can be arranged to overlap when the lower end face of the floating component contacts the bottom surface of the water storage tank.

[0008] The water collection trough is connected to the water storage tank via a guide pipe. The bottom of the water storage tank is equipped with a valve assembly with a switch, which can be controlled automatically or manually to allow the water in the tank to drain when the rain stops. An overflow pipe is located at the top of the water storage tank. During periods of heavy rainfall, rainwater can easily overflow from the connection between the floating assembly and the rain-proof foam board, flowing to the lower part of the tank body. Therefore, the overflow pipe directs excess rainwater to the outside of the tank body.

[0009] By collecting rainwater, the rainwater can easily lift the rain-proof foam board upwards, allowing the overlapping elongated holes and adjacent heat dissipation hole groups to be misaligned. The rain-proof foam board between the adjacent elongated holes blocks the heat dissipation hole groups, so that on rainy days or in heavy rainfall, the rain-proof foam board automatically blocks the heat dissipation holes of the box body, reducing rainwater splashing into the box body and reducing the occurrence of dampness and short circuits in the equipment inside the box body.

[0010] The floating component can rise and fall within a certain range under the action of rainwater. The vertical distance between the uppermost and lowermost points that the floating component can reach is not less than the height of the heat dissipation holes, so that when the floating component drives the rain-proof foam board to rise, the rain-proof foam board can block the heat dissipation holes.

[0011] The structure that allows the rainproof foam board to move vertically up and down is as follows: the rear side of the box body is symmetrically equipped with slide rails, and the two slide rails are located on both sides of the heat dissipation hole group in the horizontal direction. The two sides of the rainproof foam board slide into the corresponding slide rails.

[0012] Regarding the specific structure of the floating assembly, the floating assembly includes a floating foam block located inside the water storage tank, which is connected to the lower part of the rainproof foam board through a connecting foam board passing through the upper part of the water storage tank.

[0013] To allow the rain-shielding foam board and the connecting foam board to move vertically and reduce swaying, a guide groove is provided on the upper part of the water tank, and the connecting foam board slides into the guide groove.

[0014] The specific structure of the valve assembly is as follows: the valve assembly includes a valve, the outlet end of the valve is connected to a drain pipe, and the drain pipe is connected to an overflow pipe through a connecting pipe.

[0015] To improve the service life of the rainproof foam board and connecting foam board and reduce performance degradation caused by sun exposure, a protective coating is applied to the outer side of both the rainproof foam board and connecting foam board.

[0016] To ensure effective coverage of the heat dissipation holes when the rainproof foam board is moved upwards, the vertical distance between the lower end face of the elongated hole and the upper end face of the adjacent elongated hole is greater than the height of the heat dissipation hole.

[0017] The beneficial effects of this utility model are as follows:

[0018] Under normal conditions (when it is not raining), the elongated holes coincide with the heat dissipation hole group on the same horizontal plane, allowing the heat dissipation hole group to achieve normal ventilation and heat dissipation. When it rains, the water collection tanks set around the rain cover collect rainwater. The rainwater in the collection tanks flows into the water storage tank through the guide pipe, causing the floating foam blocks in the water storage tank to float upwards. Through the connecting foam board, the rainproof foam board moves upwards, allowing the overlapping elongated holes to be misaligned with the adjacent heat dissipation hole group. The rainproof foam board between the adjacent elongated holes blocks the heat dissipation hole group. In rainy days or when there is heavy rainfall, the rainproof foam board automatically blocks the heat dissipation holes of the box body, reducing rainwater splashing into the box body and reducing the occurrence of moisture and short circuits in the equipment inside the box body.

[0019] The valve assembly can be controlled automatically or manually, making it easy to open the valve when the rain stops to drain the water in the storage tank. An overflow pipe is provided at the top of the storage tank. When there is a lot of rain, rainwater is likely to overflow from the connection between the floating assembly and the rainproof foam board and flow to the bottom of the tank body. Therefore, the overflow pipe can lead the excess rainwater to the outside side away from the tank body through the pipe. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a structural diagram;

[0022] Figure 2 This is a top view;

[0023] Figure 3 for Figure 2 A schematic diagram of the AA-direction cross-section structure;

[0024] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 5 A schematic diagram of the rainproof foam board and floating component structure;

[0026] The components represented by the various reference numerals in the diagram are:

[0027] 1. Box body; 2. Ventilation hole assembly; 3. Rain cover; 31. Water collection trough; 4. Rainproof foam board; 41. Long hole; 5. Water storage tank; 51. Guide groove; 6. Flow guide pipe; 7. Valve assembly; 71. Valve; 72. Water discharge pipe; 8. Overflow pipe; 9. Slide rail; 10. Floating foam block; 11. Connecting foam board; 12. Connecting pipe; 13. Protective coating. Detailed Implementation

[0028] See Figure 1 , Figure 2 and Figure 3As shown, an outdoor prefabricated substation includes a prefabricated box body 1. Multiple sets of heat dissipation holes 2 are vertically arranged on the rear side of the box body 1. Each heat dissipation hole set 2 includes multiple heat dissipation holes arranged horizontally. A rainproof cover 3 is provided on the top surface of the box body 1, and water collection troughs 31 are provided around the rainproof cover 3. Slide rails 9 are symmetrically arranged on the rear side of the box body 1, with two slide rails 9 located on either side of the heat dissipation hole sets 2 along the horizontal direction. Lightweight rainproof foam boards 4 are provided outside the heat dissipation hole sets 2, with both sides of the rainproof foam boards slidably engaged within the corresponding slide rails 9.

[0029] See Figure 1 and Figure 5 As shown, the rainproof foam board 4 has elongated holes 41 corresponding to multiple sets of heat dissipation hole groups 2. These elongated holes 41 are arranged vertically, with their direction being horizontal and consistent with the length direction of the heat dissipation hole groups 2. To ensure effective shielding of the heat dissipation holes when the rainproof foam board 4 moves upward, the vertical distance between the lower end face of the elongated hole 41 and the upper end face of the adjacent elongated hole 41 is greater than the height of the heat dissipation hole. A water storage tank 5 is located below and outside the heat dissipation hole groups 2. The lower part of the rainproof foam board 4 is slidably connected to the water storage tank 5 via a floating assembly, allowing the rainproof foam board 4 to move vertically up and down.

[0030] The elongated hole 41 and the adjacent heat dissipation hole group 2 can be arranged to overlap when the lower end face of the floating component contacts the bottom surface of the water storage tank 5, which is the state when it is not raining. The floating component can rise and fall within the range of heights under the action of rainwater. The vertical distance between the uppermost and lowermost points that the floating component can reach is not less than the height of the heat dissipation hole, so that when the floating component drives the rain-proof foam board 4 to rise, the rain-proof foam board 4 can block the heat dissipation hole.

[0031] The water collection trough 31 is connected to the water storage tank 5 via the guide pipe 6. The bottom of the water storage tank 5 is equipped with a valve assembly 7 with a switch. The valve assembly 7 includes a valve 71, with a drain pipe 72 connected to the outlet end of the valve 71. The drain pipe 72 is connected to the overflow pipe 8 via a connecting pipe 12. The valve assembly 7 can be controlled automatically or manually, allowing the valve 71 to be opened when the rain stops to drain the water from the water storage tank 5. The water storage tank 5 is equipped with an overflow pipe 8 at its upper part. During periods of heavy rainfall, rainwater easily overflows from the connection between the floating assembly and the rain-shielding foam board 4, tending to flow to the lower part of the tank body 1. Therefore, the overflow pipe 8 can guide excess rainwater to the outer side away from the tank body 1.

[0032] In the above structure, rainwater is collected and can easily lift the rainproof foam board 4 upwards, so that the overlapping elongated holes 41 and the adjacent heat dissipation hole group 2 can be misaligned. The rainproof foam board 4 between the adjacent elongated holes 41 blocks the heat dissipation hole group 2. In rainy days or when there is heavy rainfall, the rainproof foam board 4 automatically blocks the heat dissipation holes of the box body 1, reducing rainwater splashing into the box body 1 and reducing the occurrence of dampness and short circuits in the equipment inside the box body 1.

[0033] See Figure 3 , Figure 4 and Figure 5 As shown, the specific structure of the floating assembly in this embodiment is as follows: the floating assembly includes a floating foam block 10 located inside the water storage tank 5. The floating foam block 10 is connected to the lower part of the rainproof foam board 4 via a connecting foam plate 11 passing through the upper part of the water storage tank 5. To enable the rainproof foam board 4 and the connecting foam plate 11 to move vertically up and down and reduce swaying, a guide groove 51 is provided on the upper part of the water storage tank 5, and the connecting foam plate 11 slides in the guide groove 51.

[0034] To improve the service life of the rainproof foam board 4 and the connecting foam board 11 and reduce the performance degradation caused by sun exposure, a protective coating 13 is provided on the outer side of both the rainproof foam board 4 and the connecting foam board 11. The protective coating 13 is existing technology and can reduce the damage of ultraviolet rays to the rainproof foam board 4 and the connecting foam board 11, and reduce aging, yellowing and other phenomena.

Claims

1. An outdoor box-type transformer substation comprising a box body (1), a plurality of groups of heat dissipation holes (2) are formed on the rear side of the box body (1) in the vertical direction, and each group of heat dissipation holes (2) comprises a plurality of heat dissipation holes arranged in the horizontal direction, characterized in that, The top surface of the box body (1) is provided with a rain cover (3), and the rain cover (3) is provided with a water collecting groove (31) around. The outer side of the heat dissipation hole group (2) is provided with a light rain-proof foam board (4), the rain-proof foam board (4) is provided with a long hole (41) corresponding to the heat dissipation hole group (2), and the outer side of the heat dissipation hole group (2) is provided with a water storage tank (5). The lower part of the rain-proof foam board (4) is slidably connected to the water storage tank (5) through a floating assembly, the rain-proof foam board (4) can move up and down in the vertical direction, and the long hole (41) and the adjacent heat dissipation hole group (2) can be arranged in coincidence when the lower end surface of the floating assembly is in contact with the bottom surface of the water storage tank (5). The water collecting groove (31) is communicated with the water storage tank (5) through a flow guide pipe (6), the bottom of the water storage tank (5) is provided with a valve assembly (7) with a switch, and the upper part of the water storage tank (5) is provided with an overflow pipe (8).

2. An outdoor box-type transformer substation according to claim 1, characterized in that The maximum vertical distance of the floating assembly can be reached is not less than the height of the heat dissipation hole.

3. An outdoor box-type transformer substation according to claim 1, characterized in that The rear side of the box body (1) is symmetrically provided with a slide rail (9), and the two slide rails (9) are located on both sides of the heat dissipation hole group (2) in the horizontal direction. The both sides of the rain-proof foam board (4) are slidably connected in the corresponding slide rail (9).

4. An outdoor box-type transformer substation according to claim 1, characterized in that The floating assembly comprises a floating foam block (10) located in the water storage tank (5), and the floating foam block (10) is connected to the lower part of the rain-proof foam board (4) through a connecting foam board (11) passing through the upper part of the water storage tank (5).

5. An outdoor box-type transformer substation according to claim 4, characterized in that The upper part of the water storage tank (5) is provided with a guide groove (51), and the connecting foam board (11) is slidably connected in the guide groove (51).

6. An outdoor box-type transformer substation according to claim 1, characterized in that The valve assembly (7) comprises a valve (71), and the water outlet end of the valve (71) is connected with a drain pipe (72), and the drain pipe (72) is communicated with the overflow pipe (8) through a connecting pipe (12).

7. An outdoor box-type transformer substation according to claim 1, characterized in that The outer sides of the rain-proof foam board (4) and the connecting foam board (11) are provided with a protective coating (13).

8. An outdoor box-type transformer substation according to claim 2, characterized in that The vertical distance between the lower end surface of the long hole (41) and the upper end surface of the adjacent long hole (41) is greater than the height of the heat dissipation hole.