Ventilated heat-dissipating anti-swing box-type substation roof
By using an inverted V-shaped structure and top cover column design, combined with stainless steel protective plates and sealant, the problems of low heat dissipation efficiency, easy deformation during hoisting, and insufficient protection of the top cover of the box-type substation are solved, achieving the effects of efficient heat dissipation, reliable protection, and resistance to hoisting damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING WANGBIAN ELECTRIC GRP CORP
- Filing Date
- 2025-08-29
- Publication Date
- 2026-08-04
AI Technical Summary
Existing prefabricated substation roofs suffer from low heat dissipation efficiency, are prone to deformation during hoisting, have easily corroded paint surfaces, and lack sufficient waterproof protection, making it difficult to simultaneously meet the requirements of efficient heat dissipation, reliable protection, rapid production, and long-term durability.
The top cover features an inverted V-shaped structure, combined with top cover columns and stainless steel protective plates. These are welded together and sealed with sealant to form a rigid, integrated structure. The addition of a strip array of ventilation holes and a rain guard ensures that hot air can be smoothly discharged and prevents rainwater intrusion, thereby improving structural strength and protection level.
It improves heat dissipation efficiency, enhances the structural strength and protective capabilities of the top cover, prevents deformation and paint damage during hoisting, reduces maintenance costs, and extends service life.
Smart Images
Figure CN224596059U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of prefabricated substation components, specifically to a prefabricated substation top cover with ventilation, heat dissipation, and protection against hanging damage. Background Technology
[0002] Prefabricated substations integrate key electrical components such as transformers, high-voltage circuit breakers, and low-voltage power distribution equipment. During operation, these components continuously generate heat due to electromagnetic and resistive losses. If the heat cannot be dissipated in time, the temperature inside the prefabricated substation will rise rapidly, which will not only accelerate the aging of insulation materials but may also cause safety hazards, even leading to equipment burnout and regional power outages. This directly affects the stability of residential electricity supply and the continuity of industrial production. Therefore, heat dissipation performance has become one of the core factors restricting the operational reliability and service life of prefabricated substations.
[0003] To solve the heat dissipation problem, the mainstream solutions in existing technologies fall into two categories: One design is "forced ventilation through side doors," which involves creating ventilation and heat dissipation holes in the side doors of the prefabricated substation and installing axial flow fans to construct a forced ventilation system. However, this solution has significant drawbacks in heat dissipation. According to the principle of thermal expansion and contraction of air, the heated air inside the box will naturally flow upwards and form a "hot air retention layer" below the top cover. The axial flow fans at the side doors are installed at a relatively low height (usually 1.2-1.5m above the ground), and their effective range is concentrated in the lower part of the box. They cannot effectively traction the retained hot air in the top cover area, resulting in a prominent problem of hot air accumulation.
[0004] The second option is "direct ventilation through openings in the top cover," which involves creating ventilation holes in the top of the prefabricated substation to directly guide hot air from below. However, to meet outdoor protection requirements, this option requires complex rainproof and dustproof structures, increasing the variety of top cover components and requiring multiple welding and riveting processes for assembly. This results in cumbersome processing, low production efficiency, and difficulty in meeting the rapid delivery needs of large-scale projects. Furthermore, the joints between multiple components are prone to rainwater leakage due to insufficient welding precision or aging sealant. Once rainwater enters the box, it can cause electrical components to become damp and short-circuit or metal parts to corrode, further shortening the equipment maintenance cycle and increasing subsequent maintenance costs.
[0005] Besides deficiencies in heat dissipation and protection, existing prefabricated substation roofs also face the challenge of damage during hoisting and transportation. Traditional roof frames often use lightweight support beams, which lack structural strength. During factory hoisting and on-site installation, when steel wire ropes are used for lifting, the roof is prone to deformation due to uneven stress, leading to an increase in the sealing gap between the roof and the enclosure, resulting in air and water leaks during subsequent use. At the same time, when the steel wire ropes directly contact and rub against the sides of the roof, they can easily scratch the anti-corrosion paint on the roof surface. The exposed metal substrate will rust quickly in outdoor humid, salt spray, or industrial dust environments, not only affecting the appearance of the equipment but also gradually weakening the structural strength of the roof and shortening its service life.
[0006] In summary, current designs for prefabricated substation roofs present multiple challenges in terms of heat dissipation efficiency, protection reliability, ease of fabrication, and resistance to lifting damage. These limitations make it difficult to simultaneously meet the comprehensive requirements of modern power systems for prefabricated substations, which demand "efficient heat dissipation, reliable protection, rapid production, and long-term durability." Against this backdrop, developing a prefabricated substation roof with high heat dissipation efficiency, compliant protection levels, simple and easy-to-fabricate structure, and strong resistance to lifting damage has become a pressing technical challenge in the power equipment industry. This is of great significance for improving the operational stability of prefabricated substations and reducing their total life-cycle costs. Utility Model Content
[0007] The present invention aims to provide a ventilated, heat-dissipating, and anti-damage box-type substation top cover to solve the comprehensive problems of low heat dissipation efficiency, easy deformation during hoisting, easy rusting of paint surface, and insufficient waterproof protection of existing box-type substation top covers.
[0008] To achieve the above objectives, the present invention adopts the following technical solution: A box-type substation top cover with ventilation, heat dissipation and anti-plumbing protection includes: a top cover panel, a top cover rainproof plate, a top cover left and right ventilation plates, a stainless steel protective plate, a top cover front and rear ventilation plates and a top cover column. The top cover panel is divided into two groups and is symmetrically distributed about the longitudinal center line of the top cover body. The adjacent overlapping surfaces of the top cover panel are bent upwards. The adjacent top cover panels in the same group are welded and fixed by the bent overlapping surfaces. The two groups of top cover panels together enclose the closed top cover body in an inverted V shape. The rainproof plate of the top cover is welded to the joint of the adjacent top cover panel, and the coverage area of the rainproof plate of the top cover completely covers the joint gap. The left and right ventilation panels and the front and rear ventilation panels of the top cover are all metal bent parts, which are respectively fixed to the left and right ends and the front and rear ends of the top cover body. Ventilation holes are opened at the bottom of the left and right ventilation panels and the front and rear ventilation panels of the top cover, and rainproof edges are provided at the top of the left and right ventilation panels and the front and rear ventilation panels of the top cover. The top cover column is longitudinally installed inside the top cover body; The stainless steel protective plate is fixed to the front and rear outer side walls of the top cover body; the bottom edge of the top cover body is provided with evenly distributed top cover mounting holes, and the top cover body is detachably connected to the box-type substation box through the top cover mounting holes.
[0009] The principle and advantages of this solution are as follows: In practical application, an inverted V-shaped design is adopted. When hot air flows towards the top of the cover, the inverted V-shaped structure guides the hot air to the surrounding area of the cover. The hot air guided to the surrounding area of the cover flows out of the transformer through the heat dissipation holes, achieving heat dissipation circulation. The cover has fewer parts, a simple structural design, and is easy to process. The downward-facing heat dissipation holes effectively prevent rainwater intrusion, meet the IPX3 protection level, and improve structural strength. The cover support column runs longitudinally through the interior of the cover, improving the structural strength of the cover and preventing deformation during hoisting. The stainless steel protective plate prevents the steel wire rope from rubbing against the side of the cover during hoisting, thus preventing damage to the paint on the side of the cover and corrosion, effectively protecting the paint surface of the cover.
[0010] Preferably, as an improvement, the included angle between adjacent top cover panels in the same group is adapted to the apex angle of the inverted V-shaped structure.
[0011] Technical benefits: It ensures that each top cover panel in the same group can be accurately spliced, avoiding excessive gaps or unevenness of the slope caused by mismatch between the panel angle and the inverted V-shaped top corner; on the one hand, it can reduce the dead corners where hot air is trapped at the panel splicing points, ensuring that hot air is smoothly guided to the surrounding area of the top cover along the slope, improving heat dissipation efficiency; on the other hand, it can enhance the structural integrity of the top cover body, avoid local stress concentration caused by splicing misalignment, and further improve the top cover's resistance to hoisting deformation.
[0012] Preferably, as an improvement, the ventilation holes are strip-shaped ventilation holes on the top cover, and the strip-shaped ventilation holes are all linearly arrayed along the length direction of the left and right ventilation plates and the front and rear ventilation plates of the top cover.
[0013] Technical benefits: Compared to circular or other shaped ventilation holes, strip ventilation holes can reduce ventilation resistance with the same opening area, facilitating the rapid discharge of hot air; at the same time, the linear array distribution design ensures that hot air in all areas around the top cover can be discharged through the ventilation holes at the corresponding positions, avoiding the accumulation of local hot air.
[0014] Preferably, as an improvement, the top end of the top cover column is welded and fixed to the inner top wall of the top cover body, and the bottom end of the top cover column is welded and fixed to the inner bottom wall of the top cover body, forming a longitudinally continuous support structure.
[0015] Technical effect: By welding and fixing the top and bottom of the entire length, the top cover column and the main body of the top cover form a rigid integrated structure, rather than a local contact support.
[0016] Preferably, as an improvement, the stainless steel protective plate is fixed to the top cover body by welding, and the height of the stainless steel protective plate is consistent with the height of the front and rear side walls of the top cover body.
[0017] Technical benefits: Welding fixation increases structural strength; the height of the protective plate is consistent with the height of the front and rear side walls of the top cover, which can achieve full height coverage of the paint surface of the front and rear side walls of the top cover and prevent the wire rope from scratching the unprotected area of the side wall due to positional deviation during hoisting.
[0018] Preferably, as an improvement, the apex angle of the inverted V-shaped structure of the top cover body is 120°-150°.
[0019] Technical effect: It is used to guide the rising hot air inside the box to the left and right ventilation plates and the front and rear ventilation plates of the top cover around the main body of the top cover.
[0020] Preferably, as an improvement, the top cover mounting holes are evenly distributed along the bottom edge of the top cover body, and the top cover mounting holes are round holes with internal threads.
[0021] Technical benefits: It facilitates connection with bolts on the box-type substation enclosure.
[0022] Preferably, as an improvement, the gaps between the top cover rainproof plate and the top cover panel are sealed a second time with sealant after welding.
[0023] Technical benefits: It facilitates the thorough filling of tiny gaps, forming a double waterproof barrier of welding and sealant, further enhancing the waterproof level of the top cover joints. Attached Figure Description
[0024] Figure 1 A schematic diagram of the structure of a box-type substation top cover for ventilation, heat dissipation, and protection against hanging damage; Figure 2 This is a close-up structural diagram of the internal structure of a box-type substation roof designed for ventilation, heat dissipation, and protection against hanging damage.
[0025] The reference numerals in the accompanying drawings include: 1. Top cover panel; 2. Top cover rainproof plate; 3. Top cover left and right ventilation plates; 4. Stainless steel protective plate; 5. Top cover front and rear ventilation plates; 6. Ventilation hole; 7. Top cover column; 8. Rain guard; 9. Top cover mounting hole. Detailed Implementation
[0026] The following detailed description illustrates the specific implementation method: The basic implementation examples are as follows: Figure 1 Appendix Figure 2As shown: A box-type substation top cover with ventilation, heat dissipation and anti-pickup damage features includes: a top cover panel 1, a top cover rainproof plate 2, left and right ventilation plates 3, a stainless steel protective plate 4, front and rear ventilation plates 5, and a top cover column 7.
[0027] The top cover panel 1 is divided into two groups and is symmetrically distributed about the longitudinal center line of the top cover body. In this embodiment, there are 10 top cover panels 1, with 5 panels in a group. The adjacent overlapping surfaces of the 5 top cover panels 1 in each group are bent upwards. The adjacent top cover panels 1 in the same group are welded and fixed together by the bent overlapping surfaces to form a whole. The included angle between the adjacent top cover panels 1 in the same group is adapted to the apex angle of the inverted V-shaped structure. The two groups of top cover panels 1 together enclose the closed top cover body in an inverted V shape. The apex angle of the inverted V-shaped structure of the top cover body is 120°-150°.
[0028] The inverted V-shaped structure guides hot air to the four sides of the top cover. The hot air guided to the four sides of the top cover flows out of the transformer through the ventilation holes 6, realizing heat dissipation circulation.
[0029] The rainproof plate 2 is welded to the joint of the adjacent top cover panel 1. The coverage area of the rainproof plate 2 completely covers the joint gap. By welding the rainproof plate 2 to the joint of the top cover panel 1, the gap is sealed again with sealant after the rainproof plate 2 is welded to the top cover panel 1, further preventing rainwater intrusion and improving structural strength.
[0030] The left and right ventilation plates 3 and the front and rear ventilation plates 5 of the top cover are all metal bent parts, which are respectively fixed to the left and right ends and the front and rear ends of the top cover body. The bottom of the left and right ventilation plates 3 and the front and rear ventilation plates 5 of the top cover are provided with ventilation holes 6 for hot air to flow out of the box from the top cover. The ventilation holes 6 are strip-shaped top cover ventilation holes 6. The strip-shaped top cover ventilation holes 6 are all linearly and uniformly distributed along the length direction of the left and right ventilation plates 3 and the front and rear ventilation plates 5 of the top cover. The number of strip-shaped top cover ventilation holes on the left and right ventilation plates 3 and the front and rear ventilation plates 5 of the top cover is distributed according to the area ratio of the ventilation plate. In this embodiment, the number of strip-shaped top cover ventilation holes is not less than 1800.
[0031] The upper part of the left and right ventilation panels 3 of the top cover and the front and rear ventilation panels 5 of the top cover are all provided with rain guards 8. The rain guards 8 are integrally bent and extend away from the center of the main body of the top cover. The orthographic projection of the rain guards 8 completely covers the strip-shaped ventilation holes of the top cover below, preventing rainwater flowing down from the top cover panel 1 from entering the box and ensuring the protection level.
[0032] The top cover column 7 is longitudinally installed inside the top cover body; in this embodiment, there are 2 top cover columns 7. The top end of the top cover column 7 is welded and fixed to the inner top wall of the top cover body, and the bottom end of the top cover column 7 is welded and fixed to the inner bottom wall of the top cover body, forming a longitudinally continuous support structure to improve the structural strength of the top cover and prevent deformation during hoisting.
[0033] The stainless steel protective plate 4 is fixed to the front and rear outer side walls of the top cover body. In this embodiment, two stainless steel protective plates 4 are installed at the front and rear of the top cover body. The stainless steel protective plates 4 are fixed to the top cover body by welding, and the height of the stainless steel protective plates 4 is consistent with the height of the front and rear side walls of the top cover body. This prevents the steel wire rope from rubbing against the side of the top cover during the hoisting process, which could damage the paint on the side of the top cover and cause corrosion.
[0034] The bottom edge of the main body of the top cover has evenly distributed mounting holes 9, and the main body of the top cover is detachably connected to the box-type substation enclosure through the mounting holes 9. In this embodiment, the mounting holes 9 are round holes with internal threads, and the internal thread specification of the mounting holes 9 is M12-M16.
[0035] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A ventilated and heat-dissipating anti-swinging box-type substation roof cover, characterized in that, include: Top cover panel, top cover rainproof plate, top cover left and right ventilation plates, stainless steel protective plate, top cover front and rear ventilation plates and top cover columns; The top cover panel is divided into two groups and is symmetrically distributed about the longitudinal center line of the top cover body. The adjacent overlapping surfaces of the top cover panel are bent upwards. The adjacent top cover panels in the same group are welded and fixed by the bent overlapping surfaces. The two groups of top cover panels together enclose the closed top cover body in an inverted V shape. The rainproof plate of the top cover is welded to the joint of the adjacent top cover panel, and the coverage area of the rainproof plate of the top cover completely covers the joint gap. The left and right ventilation panels and the front and rear ventilation panels of the top cover are all metal bent parts, which are respectively fixed to the left and right ends and the front and rear ends of the top cover body. Ventilation holes are opened at the bottom of the left and right ventilation panels and the front and rear ventilation panels of the top cover, and rainproof edges are provided at the top of the left and right ventilation panels and the front and rear ventilation panels of the top cover. The top cover column is longitudinally installed inside the top cover body; The stainless steel protective plate is fixed to the front and rear outer side walls of the top cover body; the bottom edge of the top cover body is provided with evenly distributed top cover mounting holes, and the top cover body is detachably connected to the box-type substation box through the top cover mounting holes.
2. The box-type substation top cover of claim 1, wherein: The included angle between adjacent top cover panels within the same group is adapted to the apex angle of the inverted V-shaped structure.
3. The vented and heat-dissipated anti-swinging box-type substation roof cover according to claim 1, characterized in that: The ventilation holes are strip-shaped ventilation holes on the top cover, and the strip-shaped ventilation holes are all linearly arrayed along the length of the left and right ventilation plates and the front and rear ventilation plates of the top cover.
4. The vented and heat-dissipated anti-swinging box-type substation roof cover of claim 1, wherein: The top end of the top cover column is welded and fixed to the inner top wall of the top cover body, and the bottom end of the top cover column is welded and fixed to the inner bottom wall of the top cover body, forming a longitudinally continuous support structure.
5. The vented and heat-dissipated anti-swinging box-type substation roof cover according to claim 1, characterized in that: The stainless steel protective plate is fixed to the main body of the top cover by welding, and the height of the stainless steel protective plate is consistent with the height of the front and rear side walls of the main body of the top cover.
6. The vented and heat-dissipated anti-swinging box-type substation roof cover according to claim 1, characterized in that: The apex angle of the inverted V-shaped structure of the main body of the top cover is 120°-150°.
7. The vented and heat-dissipated anti-swinging box-type substation roof cover according to claim 1, characterized in that: The mounting holes for the top cover are evenly distributed along the bottom edge of the top cover body, and the mounting holes for the top cover are round holes with internal threads.
8. The vented and heat-dissipated anti-swinging box-type substation roof cover according to claim 1, characterized in that: After the rainproof plate of the top cover is welded to the top cover panel, the gap is sealed again with sealant.