A box transformer for power distribution control equipment

Abstract

The utility model discloses a box transformer for power distribution control equipment, which comprises a box body, a top cover fixedly arranged on the box body, a partition plate arranged in the box cover to form two independent equipment areas, a converging groove recessed upward arranged on the top cover, the converging groove covering the top of the equipment areas, and a plurality of drainage fins arranged on the side wall of the converging groove, each of the drainage fins being used to guide the upward airflow to form a spiral rotating path. The converging groove is used to centrally process the hot air above the equipment areas, the directional drainage fins are used to improve the air convergence efficiency, the airflow path is optimized, the turbulence is reduced, and the flow speed is improved. The first, second and third drainage parts constitute a cyclone accelerating channel, the airflow carries angular momentum when entering the fan, the impeller efficiency is improved, and the energy consumption is reduced. The dustproof plate is automatically opened by the high-pressure gas, the dustproof and rainproof and air exhaust functions are realized, the structure design takes into account the airflow organization and mechanical linkage, and the system stability and adaptability are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of transformer substation technology, and in particular to a transformer substation for power distribution control equipment. Background Technology

[0002] With the surge in demand for urban power grid upgrades and new energy integration, traditional civil engineering substations are gradually being replaced due to their large footprint, long construction period, and poor flexibility. Prefabricated substations, by highly integrating high-voltage switchgear, transformers, low-voltage distribution equipment, and protection systems into a sealed enclosure, achieve a modular design of "factory prefabrication + on-site assembly," significantly shortening the power supply cycle.

[0003] However, the sealed enclosure is prone to transformer overheating in high-temperature environments, requiring forced ventilation. But the long-term operation of the cooling fan will lead to increased noise and energy consumption. Therefore, the applicant has made a useful design and found a solution to the above problems. The technical solution described below was developed in this context. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the traditional prefabricated transformer design and provide a product that improves heat dissipation performance, reduces energy consumption, and ensures stable operation.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A transformer substation for power distribution control equipment includes a housing and a top cover fixed thereon. The top cover has a partition inside, forming two independent equipment areas. The top cover has an upwardly recessed converging channel that covers the equipment areas. The sidewalls of the converging channel have several guiding fins, each guiding the rising airflow to form a spiral rotation path. A cooling fan is located at the airflow convergence point of the converging channel. The ends of the guiding fins extend in the same direction as the rotation of the cooling fan impeller, allowing the airflow to carry angular momentum and drive the impeller. An exhaust duct is located directly above the cooling fan on the top cover. The sidewalls of the exhaust duct have downwardly angled heat dissipation vents, and each heat dissipation vent's outlet is pivotally connected to a dustproof plate.

[0007] Preferably, the top cover includes a bottom plate and a cover plate, the manifold is formed on the bottom plate, the bottom plate is provided with support plates on both sides of the manifold, and each support plate is provided with a downward inclined ramp at both ends.

[0008] Preferably, the cover plate is fixed on the ramp, the exhaust duct is disposed on the cover plate, the exhaust duct has raised and downward inclined portions on both sides, a guide plate is disposed between the two raised portions, and the inclined heat dissipation vent is formed between the guide plate and the exhaust duct.

[0009] Preferably, the guide plate has vertically extending extensions on both sides, and each extension is attached to the outer wall of the raised part and fixed to the raised part.

[0010] Preferably, the dustproof plate is pivoted at the upper edge of the raised part via a rotating shaft, and the bottom of the dustproof plate is provided with a gravity part to keep the dustproof plate in a vertically closed state in the absence of wind.

[0011] Preferably, the flow-guiding fins include: a first flow-guiding section arranged at an inclination, the extension direction of which is close to the bottom of the side wall of the confluence channel; a spiral curved second flow-guiding section connected to the end of the first flow-guiding section for accelerating the airflow into a swirling flow; and a third flow-guiding section connected to the end of the second flow-guiding section, the tangential extension direction of which is consistent with the rotation direction of the impeller of the cooling fan.

[0012] Preferably, each of the equipment areas has a plurality of equally spaced ventilation holes at its bottom, and each ventilation hole has a horizontally pull-out filter screen at its inlet.

[0013] Preferably, the bottom of the housing is provided with several heightening supports to maintain a distance between the filter screen and the ground for gas flow.

[0014] Beneficial effects:

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes a confluence channel to centrally process hot air above the equipment area. Directional guide fins enhance gas convergence efficiency, optimize the airflow convergence path, prevent turbulence, and increase gas flow velocity. The adjacent first, second, and third guide sections collectively form a swirling acceleration channel, allowing the airflow to carry angular momentum when entering the cooling fan inlet, thus improving impeller operating efficiency and reducing energy consumption. The dustproof plate automatically opens under high-pressure gas pressure, providing dustproof, rainproof, and ventilation functions. This design improves overall heat dissipation performance and reduces operating noise. The structural design balances airflow organization and mechanical linkage, enhancing system adaptability and stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a box-type transformer for power distribution control equipment according to this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a box-type transformer for power distribution control equipment according to this utility model. Figure 2 ;

[0019] Figure 3 This is a side cross-sectional view of a box-type transformer for power distribution control equipment according to the present invention.

[0020] Figure 4This utility model Figure 3 A partial enlarged view A of a box-type transformer for power distribution control equipment;

[0021] Figure 5 This is a cross-sectional structural diagram of a box-type transformer for power distribution control equipment according to the present invention;

[0022] Figure 6 This utility model Figure 5 A partial enlarged view (B) of a transformer substation used in power distribution control equipment;

[0023] Figure 7 This is a bottom view of the base of a box-type transformer for power distribution control equipment according to this utility model;

[0024] Figure 8 This is an exploded structural diagram of a box-type transformer for power distribution control equipment according to the present invention;

[0025] The correspondence between the labels and component names in the attached figures is as follows:

[0026] Reference numerals: 1. Housing; 2. Top cover; 3. Partition; 4. Cooling fan; 5. Dustproof plate; 6. Filter screen; 11. Equipment area; 12. Ventilation hole; 13. Raising support; 21. Base plate; 22. Cover plate; 23. Support plate; 24. Guide plate; 25. Heat dissipation port; 211. Combustion channel; 212. Air diversion fin; 213. First air diversion section; 214. Second air diversion section; 215. Third air diversion section; 221. Exhaust duct; 222. Elevated section; 231. Ramp; 241. Extension section; 51. Gravity section. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation 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.

[0029] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0030] Reference example Figures 1 to 8 A box-type transformer for power distribution control equipment includes a box body 1 and a top cover 2 fixed thereon. The top cover has a partition 3 to form two independent equipment areas 11. The top cover 2 has an upwardly recessed converging channel 211 that covers the equipment area 11. The side wall of the converging channel 211 has a number of guiding fins 212. Each guiding fin 212 is used to guide the rising airflow to form a spiral rotation path. A cooling fan 4 is provided at the airflow gathering point of the converging channel 211. The end extension direction of the guiding fins 212 is consistent with the rotation direction of the impeller of the cooling fan 4, so that the airflow carries angular momentum to drive the impeller. The top cover 2 has an exhaust channel 221 directly above the cooling fan 4. The two side walls of the exhaust channel 221 have inclined downward heat dissipation vents 25. A dustproof plate 5 is pivotally connected to the outlet of each heat dissipation vent 25.

[0031] The hot air above the equipment area 11 is centrally processed by the manifold 211. The directional guide fins 212 improve the gas convergence efficiency, optimize the airflow convergence path, avoid turbulence, and increase the gas flow speed. The adjacent first, second, and third guide sections 215 together form a swirling acceleration channel, which allows the airflow to carry angular momentum when it enters the air inlet of the cooling fan 4, thereby improving the impeller operating efficiency and reducing energy consumption. The dustproof plate 5 is automatically opened by the action of high-pressure gas, which takes into account the functions of dustproof, rainproof and ventilation. The above design improves the overall heat dissipation performance and reduces operating noise. This structural design takes into account airflow organization and mechanical linkage, which enhances the system's adaptability and stability.

[0032] It is worth mentioning that the top cover 2 includes a bottom plate 21 and a cover plate 22. The confluence channel 211 is formed on the bottom plate 21. The bottom plate 21 has support plates 23 on both sides of the confluence channel 211. Each support plate 23 has a downward inclined ramp 231 at both ends.

[0033] It is worth mentioning that the cover plate 22 is fixed on the ramp 231, the exhaust channel 221 is set on the cover plate 22, and the exhaust channel 221 has raised and downward inclined raised parts 222 on both sides. A guide plate 24 is provided between the two raised parts 222, and an inclined heat dissipation port 25 is formed between the guide plate 24 and the exhaust channel 221. The guide plate 24 guides the high-speed vertical upward airflow to be discharged in an orderly manner from the heat dissipation ports 25 on both sides of the exhaust port, further improving the gas flow speed.

[0034] It is worth mentioning that the deflector plate 24 has vertically extending extensions 241 on both sides. Each extension 241 is attached to the outer wall of the raised part 222 and fixed to the raised part 222. The extension 241 is attached to the raised part 222 in a semi-enclosed form to prevent rainwater from seeping into the exhaust channel 221. The extension 241 can be connected and fixed to the raised part 222 by welding or fastening screws.

[0035] It is worth mentioning that the dustproof plate 5 is pivoted on the upper edge of the raised part 222 via a pivot. The bottom of the dustproof plate 5 is provided with a gravity part 51, which is used to keep the dustproof plate 5 in a vertical closed state when there is no wind. When the cooling fan 4 is running, it outputs a high-speed airflow that acts on the dustproof plate 5, causing it to tilt outward and open. When it rains, the tilting structure prevents external rainwater from entering the exhaust channel 221, ensuring that ventilation and rain protection functions are realized simultaneously.

[0036] It is worth mentioning that the guide fins 212 include: a first guide part 213 inclined and extending towards the bottom of the side wall of the confluence channel 211; a spiral curved second guide part 214 connected to the end of the first guide part 213 for accelerating the airflow into a vortex; and a third guide part 215 connected to the end of the second guide part 214, whose tangential extension direction is consistent with the rotation direction of the impeller of the cooling fan 4. The cooling fan 4 is an axial flow fan, and the rotation direction of the impeller is in the same direction as the rotation direction of the airflow output from the vortex acceleration channel. The guide fins 212 on each side wall are evenly distributed, so that the airflow forms a spiral convergence path along the central axis of the confluence channel 211. The spiral path design of the guide fins 212 makes the hot air form a rotating airflow. When the airflow enters the fan, it carries angular momentum and rotates in the same direction as the impeller. Under the premise of reducing the fan impeller resistance, it also effectively reduces energy consumption and significantly improves the fan's suction efficiency.

[0037] It is worth mentioning that there are several equally spaced ventilation holes 12 at the bottom of each equipment area 11. Each ventilation hole 12 has a horizontally pull-out filter 6 at its inlet. By introducing air from the bottom and exhausting it from the top, a vertical air duct is formed, which promotes full heat exchange between the cold air and the equipment and improves heat dissipation efficiency. The filter 6 intercepts impurities in the incoming air and prevents the ventilation holes 12 from being blocked. This structural design optimizes the airflow path and improves the stability and reliability of the system operation.

[0038] It is worth mentioning that the bottom of the housing 1 is provided with several heightening supports 13 to maintain a distance between the filter screen 6 and the ground for gas flow.

[0039] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A box-type transformer for power distribution control equipment, comprising a box body (1) and a top cover (2) fixed thereon, wherein a partition (3) is provided inside the top cover to form two independent equipment areas (11), characterized in that: The top cover (2) is provided with an upwardly recessed converging groove (211), which covers the equipment area (11) above. The side wall of the converging groove (211) is provided with several guiding fins (212), each of which is used to guide the rising airflow to form a spiral rotation path. A cooling fan (4) is provided at the airflow convergence point of the converging groove (211). The end extension direction of the guiding fins (212) is consistent with the rotation direction of the impeller of the cooling fan (4), so that the airflow carries angular momentum to drive the impeller. The top cover (2) is provided with an exhaust channel (221) directly above the cooling fan (4). The two side walls of the exhaust channel (221) are provided with inclined downward heat dissipation vents (25), and a dustproof plate (5) is pivotally connected to the outlet of each heat dissipation vent (25).

2. The box transformer for power distribution control equipment according to claim 1, characterized by: The top cover (2) includes a bottom plate (21) and a cover plate (22). The confluence channel (211) is formed on the bottom plate (21). The bottom plate (21) has support plates (23) on both sides of the confluence channel (211). Each support plate (23) has a downward inclined ramp (231) at both ends.

3. The box transformer for power distribution control equipment according to claim 2, characterized by: The cover plate (22) is fixed on the ramp (231), and the exhaust channel (221) is provided on the cover plate (22). The exhaust channel (221) has raised and downward inclined raised parts (222) on both sides. A guide plate (24) is provided between the two raised parts (222), and the guide plate (24) and the exhaust channel (221) form the inclined heat dissipation port (25).

4. The box transformer for power distribution control equipment according to claim 3, characterized by: The guide plate (24) has vertically extending extensions (241) on both sides. Each extension (241) is attached to the outer wall of the raised part (222) and fixed to the raised part (222).

5. The box transformer for power distribution control equipment according to claim 3, characterized by: The dustproof plate (5) is pivoted at the upper edge of the raised part (222) via a pivot. The bottom of the dustproof plate (5) is provided with a gravity part (51) to keep the dustproof plate (5) in a vertical closed state in the absence of wind.

6. The box transformer for power distribution control equipment according to claim 1, characterized by: The drainage fin (212) includes; The first drainage section (213) is inclined and extends towards the bottom of the side wall of the confluence channel (211); The spiral curved second flow section (214) connected to the end of the first flow section (213) is used to accelerate the airflow into a swirling flow; The third flow section (215) connected to the end of the second flow section (214) extends tangentially in the same direction as the impeller rotation direction of the cooling fan (4).

7. The box transformer for power distribution control equipment according to claim 1, characterized by: Each of the equipment areas (11) has a number of equally spaced ventilation holes (12) at its bottom, and each ventilation hole (12) has a horizontally pull-out filter screen (6) at its entrance.

8. The box transformer for power distribution control equipment according to claim 7, characterized by: The bottom of the housing (1) is provided with several heightening supports (13) to maintain a distance between the filter screen (6) and the ground for gas flow.

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