Box-type power transformation cabinet with cooling protection structure

Abstract

The present disclosure relates to the technical field of box-type power transformation cabinets, and one embodiment of the present disclosure provides a box-type power transformation cabinet with a cooling protection structure, which comprises a cabinet body and further comprises air inlets, swing mechanisms, air outlets and filter covers. A plurality of air inlets are formed on the two sides of the cabinet body, and a sealing plate is arranged in each air inlet through a rotating mechanism. Two swing mechanisms are arranged in the cabinet body. Two air outlets are arranged on the top end of the cabinet body, and a discharge mechanism is arranged at each air outlet. A filter cover is arranged at each air inlet. A heat insulation plate is fixedly connected to the top end of the cabinet body, and the heat insulation plate and the top of the cabinet body form an air flow space. The above technical solution is used to solve the technical problem that the existing closed box-type power transformation cabinet uses a louver filter screen in combination with a fan for heat dissipation, which has low heat dissipation efficiency and is difficult to effectively discharge heat in the cabinet, thereby easily causing the temperature of the equipment to be too high and affecting normal operation.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of box-type substation technology, and more specifically, to a box-type substation with a cooling and protection structure. Background Technology

[0002] Prefabricated substations, also known as box-type substations, are factory-prefabricated compact power distribution equipment that combines high-voltage switchgear, distribution transformers, and low-voltage power distribution devices according to a certain wiring scheme. The enclosure is usually made of a fully enclosed movable steel structure that is moisture-proof, rust-proof, dust-proof, fire-proof, theft-proof, and heat-insulated. The interior is divided into three functional compartments: a high-voltage compartment, a transformer compartment, and a low-voltage compartment. It has significant advantages such as small size, small footprint, low cost, and short construction period, and has been widely used in urban power distribution networks, residential communities, industrial and mining enterprises, and new energy power generation.

[0003] Existing box-type substations are usually enclosed structures to meet outdoor dustproof, moisture-proof, and waterproof protection requirements. However, the internal electronic components easily generate a lot of heat during operation. Current heat dissipation methods usually involve installing filters inside louvers and using fans to blow air for heat dissipation. However, the filters are prone to clogging, the air intake is limited, and the fan's air blowing efficiency is low, making it difficult to dissipate the heat inside the box in time. This can easily lead to excessively high internal temperatures, affecting the normal operation of the equipment. Summary of the Invention

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a box-type substation with a cooling and protection structure, which solves the technical problem that the existing enclosed box-type substation uses louvered filters and fans for heat dissipation, resulting in low heat dissipation efficiency, difficulty in effectively dissipating heat inside the box, and easy overheating of equipment, which affects normal operation.

[0005] According to one aspect, at least one embodiment of this disclosure provides a box-type substation with a cooling and protection structure, including a cabinet body, and further including: an air inlet, a swing mechanism, an air outlet, and a filter cover. Multiple air inlets are respectively opened on both sides of the cabinet body. Each air inlet is equipped with a sealing plate via a rotating mechanism. The top of each sealing plate and the top edge of the air inlet are provided with rounded chamfers. Two swing mechanisms are provided, both located within the cabinet body, and are used to drive the corresponding multiple sealing plates to adjust their angles. Two air outlets are provided, both located at the top of the cabinet body. Each air outlet is equipped with a discharge mechanism for dissipating heat from within the cabinet body. A filter cover is provided at each air inlet, and each sealing plate is located within its corresponding filter cover. A heat insulation plate is fixedly connected to the top of the cabinet body, and the heat insulation plate and the top of the cabinet body form an airflow space.

[0006] To support the swinging of the sealing plate, the rotating mechanism includes a rotating shaft, a linkage frame, and a rotating gear. The rotating shaft is rotatably connected to the cabinet body, the linkage frame is fixedly connected to the rotating shaft, the sealing plate is fixedly connected to the other side of the linkage frame, and the rotating gear is fixedly connected to the rotating shaft.

[0007] To drive the sealing plate to swing at an angle and control the air intake inside the cabinet, the swing mechanism includes a rack, a pusher, and an electric cylinder. The rack is slidably connected inside the cabinet, and a fixed block is fixedly connected inside the cabinet. The fixed block has a groove, and the rack is slidably connected inside the groove. The rack meshes with multiple corresponding rotating gears. The pusher is fixedly connected to the rack. The electric cylinder is installed inside the cabinet, and its output end is fixedly connected to the pusher.

[0008] To exhaust hot air from inside the cabinet and coordinate with the air inlet on the side wall of the cabinet, the exhaust mechanism includes: an exhaust cylinder, a filter screen, a mounting bracket, fan blades, and a power component. The exhaust cylinder is fixedly connected to the air outlet, the filter screen is fixedly connected to the top of the exhaust cylinder, the mounting bracket is fixedly connected inside the exhaust cylinder, and a rotating rod is rotatably connected inside the mounting bracket. The top of the rotating rod passes through the filter screen and is fixedly connected to a cleaning plate. The fan blades are fixedly connected to the rotating rod. The power component is mounted on the cabinet and drives the rotating rod to rotate. The power component includes: a transmission wheel, a drive wheel, and a motor. The transmission wheel is fixedly connected to the bottom end of the rotating rod, the drive wheel is rotatably mounted inside the cabinet, and a transmission belt drives the drive wheel. The motor is mounted on the top of the cabinet, and the output end of the motor passes through the cabinet and is fixedly connected to the drive wheel.

[0009] The beneficial effects of the embodiments disclosed herein are as follows: This invention features multiple air inlets on both sides of the cabinet and two air outlets on the top, along with an exhaust mechanism. This allows hot air inside the cabinet to be exhausted through the top exhaust duct, while external air enters from both sides, creating a smooth airflow path. Compared to the traditional method of using louvered filters with fans, this design offers higher heat dissipation efficiency, enabling more timely removal of heat from the cabinet, reducing the internal temperature, and ensuring the normal operation of electrical components.

[0010] Through the cooperation of the swing mechanism, the rotation mechanism and the sealing plate, the electric cylinder can drive the rack to move. The rack drives multiple rotating gears and rotating shafts to rotate, making the angle of the sealing plate adjustable. It can open, close or adjust the opening of the air inlet as needed, which can enhance ventilation and heat dissipation when needed, and enhance the cabinet sealing and protection in non-heat dissipation or harsh environments, taking into account heat dissipation, dust prevention and moisture prevention.

[0011] Each air inlet is equipped with a filter cover, and the top of the exhaust cylinder is fitted with a filter screen to reduce dust entering the cabinet. The rotating rod drives a cleaning plate to clean the filter screen, reducing the risk of filter clogging and maintaining long-term stable ventilation and heat dissipation.

[0012] The top edge of the sealing plate and the top edge of the air inlet are rounded to facilitate smooth opening and closing of the sealing plate and reduce interference and wear. The heat insulation plate at the top of the cabinet forms an airflow space with the top of the cabinet, which can reduce the transfer of external heat into the cabinet and facilitate the collection and discharge of hot air. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure; Figure 2 This is a structural schematic diagram of the cabinet cross-section in one embodiment of the present disclosure; Figure 3 This is a cross-sectional view of the cabinet and a structural schematic diagram of the discharge mechanism in one embodiment of this disclosure; Figure 4 This is a cross-sectional structural schematic diagram of the emission mechanism in one embodiment of this disclosure; Figure 5 This is a schematic diagram of the swing mechanism in one embodiment of the present disclosure; Figure 6 For one embodiment of this disclosure Figure 5 A magnified structural diagram of point A in the middle; Figure 7 For one embodiment of this disclosure Figure 5 A magnified structural diagram of a portion of point B in the middle.

[0015] In the diagram: 1. Cabinet; 2. Air inlet; 3. Sealing plate; 4. Air outlet; 5. Filter cover; 6. Rotating shaft; 7. Linkage frame; 8. Rotating gear; 9. Gear rack; 10. Push frame; 11. Electric cylinder; 12. Discharge cylinder; 13. Filter screen; 14. Mounting frame; 15. Rotating rod; 16. Cleaning plate; 17. Fan blade; 18. Transmission wheel; 19. Drive wheel; 20. Transmission belt; 21. Motor; 22. Fixing block; 23. Heat insulation plate. Detailed Implementation

[0016] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0017] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0018] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0019] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.

[0021] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] like Figures 1-3The diagram illustrates a box-type substation with a cooling and protection structure according to an embodiment of this disclosure. It includes a cabinet 1, and further comprises: air inlets 2, a swing mechanism, air outlets 4, and filter covers 5. Multiple air inlets 2 are provided on both sides of the cabinet 1. Each air inlet 2 has a sealing plate 3 installed within it via a rotating mechanism. The top of each sealing plate 3 and the top edge of the air inlet 2 are chamfered. Two swing mechanisms are provided, both located within the cabinet 1, and are used to drive the corresponding sealing plates 3 for angle adjustment. Two air outlets 4 are provided, both located at the top of the cabinet 1. Each air outlet 4 has an exhaust mechanism for dissipating heat from the cabinet 1. Each air inlet 2 is equipped with a filter cover 5, and each sealing plate 3 is located within its corresponding filter cover 5. The top of the cabinet 1... A heat insulation plate 23 is fixedly connected, forming an airflow space with the top of the cabinet 1. Through the cooperation of multiple air inlets 2 on both sides of the cabinet 1 and two air outlets 4 on the top, a relatively smooth airflow channel can be formed, which is conducive to the concentrated exhaust of hot air from the top. The sealing plate 3 can adjust the opening of the air inlet 2, so that the cabinet 1 can increase the ventilation volume when heat dissipation is needed, and reduce or close the air inlet 2 when heat dissipation is not needed or in harsh environments, thus taking into account both heat dissipation and dustproof, moisture-proof, and waterproof protection requirements. The filter cover 5 can intercept dust and impurities in the external air, reducing the risk of dust accumulation on electrical components inside the cabinet. The rounded corners facilitate the smooth opening and closing of the sealing plate 3, reducing interference and wear between the sealing plate 3 and the edge of the air inlet 2. The heat insulation plate 23 and the top of the cabinet 1 form an airflow space, which can reduce the transfer of external heat into the cabinet 1 and facilitate the exhaust of hot air after it gathers at the top of the cabinet 1.

[0023] like Figures 5-6 As shown, the rotating mechanism includes a rotating shaft 6, a linkage frame 7, and a rotating gear 8. The rotating shaft 6 is rotatably connected inside the cabinet 1, the linkage frame 7 is fixedly connected to the rotating shaft 6, the sealing plate 3 is fixedly connected to the other side of the linkage frame 7, and the rotating gear 8 is fixedly connected to the rotating shaft 6. The rotating shaft 6 and the linkage frame 7 cooperate to convert the rotational motion of the rotating gear 8 into the swing motion of the sealing plate 3, so that the opening adjustment of the sealing plate 3 is stable and reliable. The rotating gear 8 is fixedly connected to the rotating shaft 6, which facilitates meshing with the rack 9 in the swing mechanism, thereby realizing the synchronous adjustment of multiple sealing plates 3.

[0024] like Figure 2 , Figure 3 , Figure 5 and Figure 7As shown, the swing mechanism includes a rack 9, a pusher frame 10, and an electric cylinder 11. The rack 9 is slidably connected inside the cabinet 1. A fixing block 22 is fixedly connected inside the cabinet 1. A groove is provided on the fixing block 22, and the rack 9 is slidably connected in the groove. The rack 9 meshes with multiple corresponding rotating gears 8. The pusher frame 10 is fixedly connected to the rack 9. The electric cylinder 11 is installed inside the cabinet 1, and the output end of the electric cylinder 11 is fixedly connected to the pusher frame 10. The groove on the fixing block 22 can restrict the rack 9 to make linear reciprocating motion in a set direction, preventing the rack 9 from deflecting or jamming during movement, thus improving transmission stability. One rack 9 meshes with multiple corresponding rotating gears 8, and multiple sealing plates 3 on the same side can be driven to swing synchronously by one electric cylinder 11, improving the convenience of operation and maintenance of the substation.

[0025] like Figures 3-4 As shown, the emission mechanism includes: an emission cylinder 12, a filter screen 13, a mounting bracket 14, a fan blade 17, and a power assembly. The emission cylinder 12 is fixedly connected to the air outlet 4. The filter screen 13 is fixedly connected to the top of the emission cylinder 12. The mounting bracket 14 is fixedly connected inside the emission cylinder 12. A rotating rod 15 is rotatably connected inside the mounting bracket 14. The top of the rotating rod 15 passes through the filter screen 13 and is fixedly connected to a cleaning plate 16. The fan blade 17 is fixedly connected to the rotating rod 15. The power assembly is mounted on the cabinet 1 and is used to drive the rotating rod 15 to rotate. The power assembly includes: a transmission wheel 18, a drive wheel 19, and a motor 21. The transmission wheel 18 is fixedly connected to the bottom of the rotating rod 15. The drive wheel 19 is rotatably mounted inside the cabinet 1. The drive wheel 19 and the transmission wheel 18 transmit power to each other. The drive belt 20 is connected to the cabinet 1. The motor 21 is installed at the top of the cabinet 1. The output end of the motor 21 passes through the cabinet 1 and is fixedly connected to the drive wheel 19. The exhaust cylinder 12 can form a concentrated heat exhaust channel at the air outlet 4, so that the hot air inside the cabinet can be discharged outward in an orderly manner. The filter screen 13 can reduce the entry of external dust and debris into the cabinet 1 through the air outlet 4. The mounting bracket 14 is used to stably support the rotating rod 15, so that the rotating rod 15 and the fan blade 17 rotate smoothly. The rotating rod 15 drives the fan blade 17 and the cleaning plate 16 at the same time. When the fan blade 17 rotates, it forms an active exhaust effect at the exhaust cylinder 12. The cleaning plate 16 cleans the surface of the filter screen 13 at the same time. There is no need to set a separate power source for the cleaning plate 16, which can reduce the risk of filter screen 13 clogging and maintain a long-term stable heat exhaust effect.

[0026] Working principle: When ventilation and heat dissipation are required, the electric cylinder 11 drives the push frame 10 to move. The push frame 10 drives the rack 9 to slide in the groove on the fixed block 22. The rack 9 meshes with multiple corresponding rotating gears 8, thereby driving the rotating shaft 6 to rotate. The rotating shaft 6 drives the sealing plate 3 to swing around the rotating shaft 6 through the linkage frame 7, thereby adjusting the opening between the sealing plate 3 and the air inlet 2, so that multiple air inlets 2 on both sides of the cabinet 1 open. External air enters the cabinet 1 after being filtered by the filter cover 5 at the air inlet 2, forming an airflow. At the same time, the electric cylinder 11 drives the push frame 10 to move. The push frame 10 drives the rack 9 to slide in the groove on the fixed block 22. The rack 9 meshes with multiple rotating gears 8, thereby driving the rotating shaft 6 to rotate. The rotating shaft 6 drives the sealing plate 3 to swing around the rotating shaft 6 through the linkage frame 7, thereby adjusting the opening between the sealing plate 3 and the air inlet 2, so that multiple air inlets 2 on both sides of the cabinet 1 open. External air enters the cabinet 1 after being filtered by the filter cover 5 at the air inlet 2, forming an airflow. At the same time, the electric cylinder 11 drives the push frame 10 to move. The push frame 10 drives the rack 10 to move. The push frame 10 drives the push frame ... The machine 21 drives the drive wheel 19 to rotate, and the drive wheel 19 drives the transmission wheel 18 to rotate through the transmission belt 20. The transmission wheel 18 drives the rotating rod 15 to rotate in the mounting frame 14. The rotating rod 15 drives the fan blade 17 to rotate, thereby forming an exhaust effect at the exhaust cylinder 12. The heat in the cabinet 1 is discharged to the outside through the two air outlets 4 at the top of the cabinet 1 and the exhaust cylinder 12. When the rotating rod 15 rotates, it also drives the cleaning plate 16 that passes through the filter screen 13 at its top to rotate synchronously, cleaning the filter screen 13 at the top of the exhaust cylinder 12 and reducing the clogging of the filter screen 13. The heat insulation plate 23 installed at the top of the cabinet 1 forms an airflow space with the top of the cabinet 1, which can reduce the transfer of external heat into the cabinet 1 and facilitate the discharge of hot air after it gathers at the top. When ventilation is not required or enhanced protection is required, the electric cylinder 11 moves in the opposite direction, and the rack 9 drives the rotating gear 8 to rotate in the opposite direction, so that the sealing plate 3 is reset and closes or reduces the opening of the air inlet 2, thereby taking into account the requirements of heat dissipation and ventilation as well as dustproof and moisture-proof protection. The rounded chamfers set at the top of the sealing plate 3 and the top edge of the air inlet 2 can make the sealing plate 3 more smooth during the opening and closing swing process, reducing interference and wear.

[0027] During the above operation, external air enters from both sides of the cabinet 1 and hot air is discharged from the top of the cabinet 1, which can form a relatively smooth air intake and exhaust path, reducing the accumulation of heat inside the cabinet. When the sealing plate 3 is opened, the opening degree can be adjusted according to the stroke of the electric cylinder 11, thereby controlling the air intake as needed. After the sealing plate 3 is closed or the opening degree is reduced, the motor 21 can be stopped so that the exhaust cylinder 12 no longer actively exhausts air, so that the cabinet 1 can restore or enhance the closed protection. Even if the motor 21 continues to run briefly after the sealing plate 3 is closed, and the fan blade 17 draws in and creates a brief negative pressure inside the cabinet 1, the sealing plate 3 will not be displaced unexpectedly due to the negative pressure because the electric cylinder 11 has a locking effect on the rack 9 and the rotating gear 8.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A box-type substation with a cooling and protection structure, comprising a cabinet (1), characterized in that, Also includes: Air inlet (2): Multiple air inlets (2) are provided on both sides of the cabinet (1), and each air inlet (2) is equipped with a sealing plate (3) through a rotating mechanism. The swing mechanism is provided in two parts, both of which are located inside the cabinet (1). The two swing mechanisms are used to drive the corresponding multiple sealing plates (3) to adjust the angle. Air outlet (4), there are two air outlets (4), both air outlets (4) are opened at the top of the cabinet (1), and both air outlets (4) are provided with a discharge mechanism, which is used to discharge the heat inside the cabinet (1); Each air inlet (2) is provided with a filter cover (5), and each sealing plate (3) is located inside the corresponding filter cover (5).

2. A box-type substation with a cooling and protection structure according to claim 1, characterized in that, The rotating mechanism includes: Rotating shaft (6), the rotating shaft (6) is rotatably connected inside the cabinet (1); Linkage frame (7), the linkage frame (7) is fixedly connected to the rotating shaft (6), and the sealing plate (3) is fixedly connected to the other side of the linkage frame (7); Rotating gear (8) is fixedly connected to the rotating shaft (6).

3. A box-type substation with a cooling and protection structure according to claim 2, characterized in that, The swing mechanism includes: A rack (9) is slidably connected inside the cabinet (1), and the rack (9) meshes with a plurality of corresponding rotating gears (8); A pusher frame (10) is fixedly connected to the toothed rod (9); Electric cylinder (11) is installed inside the cabinet (1), and the output end of the electric cylinder (11) is fixedly connected to the push frame (10).

4. A box-type substation with a cooling and protection structure according to claim 1, characterized in that, The emission mechanism includes: An exhaust cylinder (12) is fixedly connected to the air outlet (4); A filter screen (13) is fixedly connected to the top of the discharge cylinder (12); Mounting bracket (14), which is fixedly connected inside the discharge cylinder (12), and a rotating rod (15) is rotatably connected inside the mounting bracket (14). The top end of the rotating rod (15) passes through the filter screen (13) and is fixedly connected to a cleaning plate (16). Fan blade (17), the fan blade (17) is fixedly connected to the rotating rod (15); A power assembly is mounted on the cabinet (1) and is used to drive the rotating rod (15) to rotate.

5. A box-type substation with a cooling and protection structure according to claim 4, characterized in that, The power assembly includes: A transmission wheel (18) is fixedly connected to the bottom end of the rotating rod (15); A drive wheel (19) is rotatably disposed inside the cabinet (1), and a transmission belt (20) is connected between the drive wheel (19) and the transmission wheel (18). The motor (21) is installed at the top of the cabinet (1), and the output end of the motor (21) passes through the cabinet (1) and is fixedly connected to the drive wheel (19).

6. A box-type substation with a cooling and protection structure according to claim 3, characterized in that, A fixing block (22) is fixedly connected inside the cabinet (1). A sliding groove is provided on the fixing block (22), and the toothed rod (9) is slidably connected in the sliding groove.

7. A box-type substation with a cooling and protection structure according to claim 1, characterized in that, The top of each of the sealing plates (3) and the top edge of the air inlet (2) are provided with rounded chamfers.

8. A box-type substation with a cooling and protection structure according to claim 1, characterized in that, A heat insulation plate (23) is fixedly connected to the top of the cabinet (1), and the heat insulation plate (23) and the top of the cabinet (1) form an airflow space.

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