A high-voltage switch cabinet convenient to maintain

Abstract

A kind of high-voltage switch cabinet of easy maintenance, including cabinet, cabinet is hingedly provided with cabinet door on one side, the cabinet is slidably provided with multiple installation plates arranged at equal intervals in, limiting component for being used to lock its position is arranged on installation plate, multiple cooling pipes are fixedly arranged at equal intervals on the side of cabinet away from cabinet door, multiple cooling pipes are set up one by one with multiple installation plates, multiple rows of air inlet holes are equidistantly opened on the side of cabinet away from cabinet door, the perforation corresponding with air inlet hole is opened in installation plate, the bottom of installation plate is uniformly opened with heat dissipation hole, exhaust hole is opened in the bottom of cabinet, and fan blade is rotatably arranged in air inlet hole and exhaust hole, multiple groups of transmission assemblies are arranged on cooling pipe, and each fan blade is driven to rotate respectively.It can effectively solve the problem that electrical components in the cabinet continue to heat and heat is difficult to dissipate during long-term operation of equipment.

Description

Technical Field

[0001] This invention relates to the field of high-voltage switchgear technology, and more specifically to a high-voltage switchgear that is easy to maintain. Background Technology

[0002] High-voltage switchgear refers to electrical products used in power systems for switching, controlling, or protecting power generation, transmission, distribution, energy conversion, and consumption. The voltage level is usually between 3.6kV and 550kV. It mainly includes high-voltage circuit breakers, disconnecting switches, load switches, and other equipment, and is an important part of the power transmission and transformation equipment manufacturing industry.

[0003] For example, patent document CN120855106B, entitled "A High-Voltage Switchgear for Easy Maintenance," includes a cabinet and a door mounted on the cabinet. The door has a through-hole extending along the direction of the door's arrangement with the cabinet body. The door also includes an observation window, a perforated shielding plate, and a shielding mesh. The mesh sizes of the shielding plate and mesh are different. The observation window, shielding mesh, and shielding plate are arranged sequentially along the direction of the door's arrangement with the cabinet body, and are all located on the surface of the door near the cabinet body, covering the through-hole. By incorporating the observation window, the perforated shielding plate, and the shielding mesh, a multi-layered electromagnetic shielding structure is formed. The observation window provides visual monitoring, and the shielding plates and meshes with different mesh sizes work together to filter electromagnetic interference of different frequencies.

[0004] However, in practical applications, the aforementioned existing technical solutions result in the continuous generation of heat by internal electrical components during long-term operation, which is difficult to dissipate. This leads to heat accumulation and temperature rise within the cabinet, accelerating insulation aging of components, causing excessive contact temperature rise, easily inducing partial discharge and short-circuit faults, reducing the operational stability of control and protection components, shortening equipment lifespan, and posing significant safety hazards. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-voltage switchgear that is easy to maintain, thereby solving the technical problem mentioned in the background art where internal electrical components continuously generate heat during long-term operation of the equipment, and the heat is not easily dissipated.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-voltage switchgear for easy maintenance includes a cabinet body with a door hinged to one side. Multiple mounting plates are slidably arranged within the cabinet body, each equipped with a limiting component for locking its position. Multiple cooling pipes are fixedly installed on the side of the cabinet body away from the door, each corresponding to one of the mounting plates. Multiple rows of air inlets are equidistantly spaced on the side of the cabinet body away from the door. Perforations corresponding to the air inlets are formed on the mounting plates. Heat dissipation holes are evenly distributed at the bottom of the mounting plates. An exhaust port is located at the bottom of the cabinet body. Fan blades are rotatably mounted within both the exhaust and air inlets. Multiple sets of transmission components are installed on the cooling pipes, each driving one of the fan blades. When water flows through the cooling pipes, the water flow drives the fan blades through the transmission components, drawing in outside cold air into the cabinet body. The cold air flows through the perforations and passes through the internal components for heat exchange. The heated air then flows through the heat dissipation holes towards the bottom of the cabinet body and is discharged through the exhaust port at the bottom, forming an airflow circulation.

[0007] Furthermore, a filter screen is slidably disposed inside the air inlet, and a third spring is fixedly disposed between the filter screen and the air inlet. A sleeve is rotatably disposed at the center of the side of the filter screen facing the fan blade. A rotating plate is disposed at the end of the sleeve opposite to the filter screen. Multiple cleaning rods are disposed along the length of one side of the rotating plate. A deflector plate for rotating the rotating plate is fixedly installed on the fan blade. When the surface of the filter screen is clogged with dust, a negative pressure is formed inside the air inlet. The negative pressure drives the filter screen to slide towards the side of the fan blade and drives the rotating plate to move closer to the deflector plate. When the fan blade rotates, it drives the deflector plate to rotate as well. During the rotation of the deflector plate, it comes into contact with the rotating plate, thereby driving the rotating plate to rotate. The rotating plate drives the cleaning rods to sweep and clean the surface of the filter screen.

[0008] Furthermore, the inner wall of the air inlet is provided with a receiving groove, a locking block is slidably disposed in the receiving groove, a fourth spring is fixedly disposed between the locking block and the groove wall of the receiving groove, the side of the locking block facing the filter screen is provided with an inclined surface that slides with the filter screen, the center of the side of the locking block away from the fourth spring is provided with a locking groove, and the other side of the locking block is provided with an inclined surface that slides with the rotating plate.

[0009] Furthermore, the filter screen has a guide groove along its circumference on the side facing the fan blade, and a guide rod is fixedly installed on one side of the rotating plate, with the guide rod slidingly engaging with the guide groove.

[0010] Furthermore, the diameter of each cleaning rod is adapted to the inner diameter of the filter screen pores, and each cleaning rod can be inserted into the corresponding filter pore. The sleeve is equipped with a moving rod by a key connection. The moving rod is fixedly connected to one end of the rotating plate. The moving rod can slide along the axial direction of the sleeve. A fifth spring is fixedly installed between the moving rod and the sleeve. Multiple protrusions are fixedly arranged at equal intervals along the path inside the guide rail. One side of the protrusion is provided with an inclined surface. The guide rod slides in cooperation with the inclined surface of the protrusion.

[0011] Furthermore, a plurality of striking rods are fixedly arranged at equal intervals along the length of the side of the rotating plate facing the filter screen, and the striking rods are used to strike the filter screen.

[0012] Furthermore, the rotating plate is fixedly provided with multiple sleeve rods arranged at equal intervals along its length on the side facing the filter screen. One end of the cleaning rod is slidably embedded in the sleeve rod. A sixth spring is fixedly provided between the cleaning rod and the corresponding sleeve rod. A spiral groove is opened on the surface of the cleaning rod. A guide block that slides with the spiral groove is fixedly provided on the inner wall of the sleeve rod.

[0013] Furthermore, the transmission assembly includes a water wheel rotatably disposed inside the cooling pipe and a first bevel gear coaxially fixedly connected thereto, and a second bevel gear coaxially fixedly connected to the fan blade, the second bevel gear meshing with the first bevel gear.

[0014] Furthermore, the limiting component includes a plug rod that is slidably disposed in the mounting plate and a plug that is fixedly installed at one end of the plug rod. The inner wall of the cabinet is provided with multiple sockets that are adapted to the plug at equal intervals along the horizontal direction. The plug is inserted into the socket and engaged. The mounting plate is also provided with a driving component for driving the plug to insert into or detach from the socket.

[0015] Furthermore, the drive assembly includes a sliding plate slidably mounted in the mounting plate and a drive plate fixedly mounted on the bottom of the sliding plate. The mounting plate has a groove, the sliding plate is slidably mounted in the groove, the end of the sliding rod away from the plug extends into the groove and has an inclined surface, one end of the sliding plate has an inclined surface that slides with the sliding rod, the other end of the sliding plate is fixedly mounted between the sliding plate and the mounting plate, a first spring is fixedly mounted between the plug and the mounting plate, a second spring is fixedly mounted between the plug and the mounting plate, the bottom surface of the mounting plate has an clearance groove communicating with the groove, the drive plate slides with the clearance groove and one end of the drive plate extends to the outside of the mounting plate.

[0016] The beneficial effects of this invention are as follows: This device features multiple cooling pipes, multiple rows of air inlets, perforations, heat dissipation holes, and exhaust holes. Each exhaust hole and air inlet is equipped with rotating fan blades. Multiple transmission components are mounted on the cooling pipes, each corresponding to a fan blade. When water flows through the cooling pipes, the water flow drives the fan blades to rotate via the transmission components. The fan blades draw outside cold air into the cabinet. The cold air flows through the perforations and passes through the components inside the cabinet for heat exchange. The heated air then flows through the heat dissipation holes to the bottom of the cabinet and is discharged through the exhaust holes at the bottom, forming an airflow circulation. This effectively solves the problem of continuous heat generation and difficulty in heat dissipation of electrical components during long-term operation. It prevents heat accumulation and temperature rise inside the cabinet, which can lead to insulation aging and excessive contact temperature rise. It also eliminates potential faults such as partial discharge and short circuits. Simultaneously, it stabilizes the performance of control and protection components, extends the overall service life of the equipment, and improves the safety and reliability of high-voltage switchgear operation. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 A perspective view of the invention with the cabinet doors hidden; Figure 3 This is a perspective view of the mounting plate of the present invention; Figure 4 This is a top sectional view of the mounting plate of the present invention; Figure 5 The cross-sectional view of the upper mounting plate is omitted for the purposes of this invention; Figure 6 For the present invention Figure 5 Enlarged view of point A; Figure 7 This is a cross-sectional view of the mounting plate of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point B; Figure 9 This is a rear perspective view of the present invention; Figure 10 This is a cross-sectional view of one of the cooling pipes of the present invention; Figure 11 This is a partial perspective sectional view of the present invention; Figure 12 For the present invention Figure 11 The diagram at point C; Figure 13 This is a perspective view of the transmission component and filter screen of the present invention; Figure 14 This is a perspective view of the cleaning rod of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Cabinet body; 2. Cabinet door; 3. Mounting plate; 4. Insert rod; 5. Plug; 6. Socket; 7. Sliding plate; 8. Drive plate; 9. First spring; 10. Second spring; 11. Cooling pipe; 12. Water inlet pipe; 13. Drain pipe; 14. Mounting groove; 15. Air inlet; 16. Perforation; 17. Heat dissipation hole; 18. Exhaust hole; 19. Fan blade; 20. Water wheel; 21. First bevel gear; 22. 23. Second bevel gear; 24. Filter screen; 25. Third spring; 26. Long groove; 27. Sleeve; 28. Rotating plate; 29. ​​Cleaning rod; 30. Actuating plate; 31. Receiving groove; 32. Locking block; 33. Fourth spring; 34. Guide groove; 35. Guide rod; 36. Filter hole; 37. Moving rod; 38. Fifth spring; 39. Protrusion; 40. Striking rod; 41. Sleeve rod; 42. Sixth spring; 43. Spiral groove. Detailed Implementation

[0019] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1-14 As shown, a high-voltage switchgear for easy maintenance includes a cabinet 1, with a door 2 hinged to one side of the cabinet 1. Multiple mounting plates 3 are slidably installed inside the cabinet 1, arranged at equal intervals. The mounting plates 3 are arranged sequentially along the length of the cabinet 1 and are L-shaped, used to support and install various electrical components. The mounting plates 3 can slide radially along the cabinet 1, facilitating their removal and removal for inspection and maintenance of the electrical components mounted on them.

[0021] The mounting plate 3 is equipped with a limiting component for locking its position. The limiting component includes a plug rod 4 symmetrically slidably installed in the mounting plate 3 and a plug 5 fixedly installed at one end of the plug rod 4. Both sides of the inner wall of the cabinet 1 are provided with multiple sockets 6 that are adapted to the plug 5, and the plug 5 is inserted into the sockets 6.

[0022] The mounting plate 3 is also equipped with a drive assembly for inserting or disengaging the plug 5 into or out of the socket 6. The drive assembly includes a sliding plate 7 slidably mounted within the mounting plate 3 and a drive plate 8 fixedly mounted on the bottom surface of the sliding plate 7. A horizontal groove is formed within the mounting plate 3, and the sliding plate 7 is slidably mounted within the groove, perpendicular to the corresponding plug rod 4. The end of the sliding rod furthest from the plug 5 extends into the groove and is machined with a bevel. One end of the sliding plate 7 has a bevel that slides with the sliding rod. A first spring 9 is symmetrically fixed between the other end of the sliding plate 7 and the mounting plate 3, and a second spring 10 is fixedly mounted between the plug 5 and the mounting plate 3. When the plug 5 is inserted into the corresponding socket 6, the second spring 10 is in a stretched state, and the first spring 9 is in a naturally relaxed state. A clearance groove communicating with the groove is formed on the bottom surface of the mounting plate 3, and the drive plate 8 slides with the clearance groove. One end of the drive plate 8 extends downward to the outside of the mounting plate 3.

[0023] When the mounting plate 3 needs to be pulled outward, the operator holds the drive plate 8 with their hand and pulls it outward. The drive plate 8 drives the sliding plate 7 to slide synchronously. During the movement of the sliding plate 7, the first spring 9 is compressed, and at the same time, the inclined surface at its end gradually separates from the inclined surface at the end of the plug rod 4. Under the reset force of the second spring 10, the plug rod 4 slides towards the groove, thereby driving the plug 5 to come out from the corresponding socket 6 and releasing the position lock of the mounting plate 3.

[0024] Then, by continuing to pull out the drive plate 8, the mounting plate 3 can be pulled out to the appropriate position. Once in place, release the drive plate 8, and the sliding plate 7 will move back to the insertion rod 4 under the reset action of the first spring 9. The inclined surface at the end of the sliding plate 7 slides and presses against the inclined surface at the end of the insertion rod 4, squeezing the insertion rod 4 and causing the plug 5 to be inserted into the corresponding socket 6 again, thus re-locking the position of the mounting plate 3. This prevents the mounting plate 3 from shifting during the maintenance of electrical components, ensuring the convenience and stability of the operation.

[0025] Multiple vertically arranged and equidistant cooling pipes 11 are fixedly installed inside the cabinet 1 on the side opposite to the cabinet door 2. The inlet ends of the multiple cooling pipes 11 are connected to the same inlet pipe 12, and the inlet end of the inlet pipe 12 is connected to an external water source via a water pump (not shown in the figure). The outlet ends of the multiple cooling pipes 11 are connected to the same drain pipe 13, and the drain end of the drain pipe 13 is connected to a collection tank (not shown in the figure) for recycling the water after heat exchange. The cooling pipes 11 are arranged in a continuous "U" shape. Multiple cooling pipes 11 are correspondingly installed with multiple mounting plates 3. The mounting plate 3 has a mounting groove 14 on the side facing the cooling pipes 11, which is adapted to the shape of the cooling pipes 11, increasing the contact area between the mounting plate 3 and the cooling pipes 11 and improving heat conduction and dissipation. The mounting plate 3 can be made of metals with excellent thermal conductivity, such as copper or aluminum.

[0026] Multiple rows of air inlets 15 are equidistantly spaced on the side of the cabinet body 1 away from the cabinet door 2. A mounting plate 3 has perforations 16 corresponding to the air inlets 15. Several equidistantly arranged heat dissipation holes 17 are symmetrically arranged at the bottom of the mounting plate 3. Multiple exhaust holes 18 are located at the bottom of the cabinet body 1, and fan blades 19 are rotatably mounted inside both the exhaust holes 18 and the air inlets 15. Multiple sets of transmission components are provided on the cooling pipe 11, corresponding to the bends in the cooling pipe 11, and each set drives the fan blades 19 to rotate.

[0027] The transmission assembly includes a water impeller 20 rotatably mounted inside a cooling pipe 11 and a first bevel gear 21 coaxially fixedly connected thereto. A first fixed bracket is fixedly mounted inside the cooling pipe 11, and the shaft of the water impeller 20 is rotatably connected to the center of the first fixed bracket. The shaft extends into a corresponding exhaust port 18, and the first bevel gear 21 is fixedly sleeved on the outer circumference of the shaft. A second fixed bracket is fixedly mounted inside an air inlet 15, and a rotating shaft rotatably passes through the center of the second fixed bracket. A fan blade 19 is fixedly sleeved on the outer circumference of the rotating shaft, and a second bevel gear 22 is also fixedly sleeved on the outer circumference of the rotating shaft. The second bevel gear 22 meshes with the first bevel gear 21.

[0028] When cooling water flows into the cooling pipe 11, the water flow impacts and drives the water wheel 20 to rotate. The water wheel 20 drives the first bevel gear 21 to rotate synchronously through its shaft. The first bevel gear 21 meshes with the second bevel gear 22, which in turn drives the fan blade 19 to rotate through the shaft. The rotation of the fan blade 19 draws outside cold air into the cabinet 1 through the air inlet 15. The cold air flows through the perforations 16 on the mounting plate 3 and passes through the electrical components inside the cabinet, where it exchanges heat thoroughly with the components. The hot air after heat exchange flows to the bottom of the cabinet 1 through the heat dissipation holes 17 at the bottom of the mounting plate 3, and is finally discharged through the exhaust holes 18 at the bottom of the cabinet 1, forming a stable airflow circulation.

[0029] Since a fan blade 19 is also rotatably installed inside the exhaust port 18, the synchronous rotation of the fan blade 19 can assist in the suction of hot air inside the cabinet 1, accelerate the discharge of hot air, improve the heat exchange efficiency inside the cabinet, and ensure the stable operation of electrical components.

[0030] A filter screen 23 is slidably installed inside the air inlet 15, and a third spring 24 is fixedly installed between the filter screen 23 and the air inlet 15. Symmetrical elongated slots 25 are formed inside the air inlet 15, and a long rod is fixedly installed along the length of each slot. The two sides of the filter screen 23 are slidably installed in the corresponding elongated slots 25 and slide in cooperation with the long rods. The third spring 24 is sleeved on the outer circumference of the long rod, and its two ends are fixedly connected to the filter screen 23 and the inner wall of the elongated slot 25, respectively.

[0031] A sleeve 26 is rotatably mounted at the center of the side of the filter screen 23 facing the fan blade 19. A rotating plate 27 is mounted at the end of the sleeve 26 opposite to the filter screen 23. Multiple cleaning rods 28 are mounted along the length of one side of the rotating plate 27. Each cleaning rod 28 includes a base and a rod body. The rod body is made of rubber and is fixedly mounted on one side of the base, which is connected to the rotating plate 27. In other embodiments, the cleaning rod 28 may consist of a base and multiple bristles, which are fixedly mounted on one side of the base and are made of nylon. A deflector plate 29 for rotating the rotating plate 27 is fixedly mounted on the side of the fan blade 19 facing the filter screen 23.

[0032] When the surface of the filter screen 23 is severely clogged with dust, a negative pressure is formed inside the air inlet 15. This negative pressure drives the filter screen 23 to slide towards the fan blade 19 and compress the third spring 24, simultaneously causing the rotating plate 27 to move closer to the actuating plate 29. When the fan blade 19 rotates, it causes the actuating plate 29 to rotate synchronously. During rotation, the actuating plate 29 abuts against the rotating plate 27, thereby causing the rotating plate 27 to rotate. The rotating plate 27 drives the cleaning rods 28 to sweep and clean the dust accumulated on the surface of the filter screen 23, which can prevent the filter screen 23 from becoming clogged and causing insufficient air intake, thus preventing a decrease in the heat dissipation efficiency of the electrical components inside the cabinet.

[0033] An intake port 15 has a vertically oriented receiving groove 30 on its inner wall. A locking block 31 is slidably installed in the receiving groove 30, and a fourth spring 32 is fixedly installed between the locking block 31 and the groove wall of the receiving groove 30. The locking block 31 has an inclined surface on the side facing the filter screen 23 that slides with the filter screen 23. The locking block 31 has a locking groove in the middle of the side facing away from the fourth spring 32. The other side of the locking block 31 has an inclined surface that slides with the rotating plate 27.

[0034] When the filter screen 23 slides towards the fan blade 19 under negative pressure, it slides and presses against the inclined surface of the locking block 31, causing the locking block 31 to retract into the receiving groove 30 and compress the fourth spring 32. When the filter screen 23 slides to the position aligned with the locking block 31, the locking block 31 pops out under the reset action of the fourth spring 32, causing the filter screen 23 to be locked into the groove, thus achieving temporary positioning of the filter screen 23.

[0035] At the same time, the actuating plate 29, which rotates synchronously with the fan blade 19, abuts against the rotating plate 27, driving the rotating plate 27 to rotate. When the rotating plate 27 rotates, it slides against the inclined surface of the locking block 31, squeezing the locking block 31 back into the receiving groove 30. This prevents the filter screen 23 from moving back and forth due to air pressure fluctuations in the air inlet 15 during cleaning, thus avoiding unstable transmission between the actuating plate 29 and the rotating plate 27 and preventing unstable cleaning conditions and limited cleaning effect.

[0036] Simultaneously, the rotating plate 27 drives the cleaning rod 28 to clean the surface of the filter screen 23, thus relieving the blockage of the filter screen 23 and dissipating the negative pressure inside the air inlet 15. Under the reset force of the third spring 24, the filter screen 23 automatically resets, causing the actuating plate 29 to separate from the rotating plate 27, preventing the fan blades 19 from experiencing increased load and reduced speed, and ensuring a continuous, stable, and smooth airflow for heat dissipation inside the cabinet.

[0037] The filter screen 23 has a guide groove 33 along its circumference on the side facing the fan blade 19. A guide rod 34 is fixedly installed on one side of the rotating plate 27. The spherical structure at the end of the guide rod 34 slides in conjunction with the guide groove 33 to improve the stability of the rotating plate 27 during rotation. Filter holes 35 are arranged in an array along the center of the filter screen 23. The diameter of each cleaning rod 28 is adapted to the inner diameter of the filter hole 35 of the filter screen 23, and each cleaning rod 28 can be inserted into the corresponding filter hole 35 to clean the dust inside the filter hole 35.

[0038] The sleeve 26 is fitted with a movable rod 36 via a key connection, and the movable rod 36 is fixedly connected to one end of the rotating plate 27. The movable rod 36 can slide along the axial direction of the sleeve 26, and a fifth spring 37 is sleeved on the outer circumference of the movable rod 36. The two ends of the fifth spring 37 are fixedly connected to the sleeve 26 and the movable rod 36, respectively. With the elastic pushing action of the fifth spring 37, the rotating plate 27 can drive the guide rod 34 to always abut against the guide groove 33, so that friction is generated between the guide rod 34 and the guide groove 33, preventing the rotating plate 27 from rotating randomly after it loses contact with the actuating plate 29.

[0039] Therefore, during the process of the rotating plate 27 pressing the locking block 31 to retract and the filter screen 23 to reset, the rotating plate 27 can stop and position itself in time, ensuring that when the actuating plate 29 drives the rotating plate 27 to rotate next time, it can drive the cleaning rod 28 to rotate a full circle around the center of the filter screen 23, avoiding cleaning dead corners of the filter screen 23 and ensuring the overall cleaning effect.

[0040] Multiple protrusions 38 are fixedly installed at equal intervals along the path inside the guide groove 33. One side of the protrusion 38 is provided with an inclined surface, and the spherical structure at the end of the guide rod 34 slides in cooperation with the inclined surface of the protrusion 38.

[0041] When the rotating plate 27 drives the cleaning rod 28 to clean the filter screen 23, the cleaning rod 28 is made of rubber and has its own elasticity. When it is not inserted into the filter hole 35, it will bend and deform, and make close contact with the surface of the filter screen 23, effectively improving the cleaning effect of the filter screen surface.

[0042] When the guide rod 34 slides along the inclined surface of the protrusion 38, the inclined surface of the protrusion 38 pushes the guide rod 34 to move towards the side of the fan blade 19. The guide rod 34 drives the cleaning rod 28 to move synchronously via the rotating plate 27, so that the bent cleaning rod 28 gradually returns to its straight state. At the same time, the rotating plate 27 drives the moving rod 36 to slide along the axial direction of the sleeve 26 and stretches the fifth spring 37. After the guide rod 34 disengages from the protrusion 38, the fifth spring 37, under the action of resetting, drives the cleaning rod 28 to instantly insert into the corresponding filter hole 35, pushing the dust and impurities accumulated in the filter hole 35 outward and expelling them, achieving deep cleaning inside the filter hole 35 and further improving the overall cleaning quality. Furthermore, as the rotating plate 27 continues to rotate, it can cause the cleaning rod 28 to bend, causing it to detach from the filter hole 35. And after the dust in the filter hole 35 falls into the air inlet 15, it can be pushed out during the resetting process of the filter screen 23.

[0043] Multiple striking rods 39 are fixedly installed at equal intervals along the length of the rotating plate 27 facing the filter screen 23. The striking rods 39 are used to strike the filter screen 23.

[0044] As the rotating plate 27 drives the cleaning rod 28 to insert into the corresponding filter hole 35, the tapping rod 39 moves synchronously with the rotating plate 27 and taps the area around the filter hole 35, causing local vibration near the filter hole 35, which loosens and removes the dust clumps adhering to the inner wall of the filter hole 35, thus improving the cleaning effect inside the filter hole 35.

[0045] Multiple sleeve rods 40 are fixedly installed at equal intervals along the length of the rotating plate 27 facing the filter screen 23. The base of the cleaning rod 28 is slidably embedded in the sleeve rod 40. A sixth spring 41 is fixedly installed between the base of the cleaning rod 28 and the corresponding sleeve rod 40. A spiral groove 42 is formed on the outer periphery of the base of the cleaning rod 28. A guide block that slides with the spiral groove 42 is fixedly installed on the inner wall of the sleeve rod 40.

[0046] When the cleaning rod 28 is inserted into the corresponding filter hole 35, if stubborn dust clumps are attached to the inner wall of the filter hole 35, they will obstruct the cleaning rod 28, preventing it from being inserted further. At this time, the rotating plate 27 still drives the sleeve rod 40 to move towards the filter screen 23. Under the obstruction of the stubborn dirt, the cleaning rod 28 is displaced relative to the sleeve rod 40 and compresses the sixth spring 41. At the same time, with the sliding cooperation of the spiral groove 42 and the guide block, the cleaning rod 28 is driven to rotate. While rotating, the cleaning rod 28 rubs and scrapes away the firmly attached dust clumps, causing the stubborn dirt to loosen and fall off, further improving the cleaning efficiency and cleaning effect inside the filter hole 35.

[0047] Working principle: When the mounting plate 3 needs to be pulled outward, the operator holds the drive plate 8 with their hand and pulls it outward. The drive plate 8 drives the sliding plate 7 to slide synchronously. During the movement of the sliding plate 7, the first spring 9 is compressed, and at the same time, the inclined surface at its end gradually separates from the inclined surface at the end of the plug rod 4. Under the reset force of the second spring 10, the plug rod 4 slides towards the groove, thereby driving the plug 5 to come out from the corresponding socket 6 and releasing the position lock of the mounting plate 3.

[0048] Then, by continuing to pull out the drive plate 8, the mounting plate 3 can be pulled out to the appropriate position. Once in place, release the drive plate 8, and the sliding plate 7 will move back to the insertion rod 4 under the reset action of the first spring 9. The inclined surface at the end of the sliding plate 7 slides and presses against the inclined surface at the end of the insertion rod 4, squeezing the insertion rod 4 and causing the plug 5 to be inserted into the corresponding socket 6 again, thus re-locking the position of the mounting plate 3. This prevents the mounting plate 3 from shifting during the maintenance of electrical components, ensuring the convenience and stability of the operation.

[0049] When cooling water flows into the cooling pipe 11, the water flow impacts and drives the water wheel 20 to rotate. The water wheel 20 drives the first bevel gear 21 to rotate synchronously through its shaft. The first bevel gear 21 meshes with the second bevel gear 22, which in turn drives the fan blade 19 to rotate through the shaft. The rotation of the fan blade 19 draws outside cold air into the cabinet 1 through the air inlet 15. The cold air flows through the perforations 16 on the mounting plate 3 and passes through the electrical components inside the cabinet, where it exchanges heat thoroughly with the components. The hot air after heat exchange flows to the bottom of the cabinet 1 through the heat dissipation holes 17 at the bottom of the mounting plate 3, and is finally discharged through the exhaust holes 18 at the bottom of the cabinet 1, forming a stable airflow circulation.

[0050] When the surface of the filter screen 23 is severely clogged with dust, a negative pressure is formed inside the air inlet 15. This negative pressure drives the filter screen 23 to slide towards the fan blade 19 and compress the third spring 24, simultaneously causing the rotating plate 27 to move closer to the actuating plate 29. When the fan blade 19 rotates, it causes the actuating plate 29 to rotate synchronously. During rotation, the actuating plate 29 abuts against the rotating plate 27, thereby causing the rotating plate 27 to rotate. The rotating plate 27 drives the cleaning rods 28 to sweep and clean the dust accumulated on the surface of the filter screen 23, which can prevent the filter screen 23 from becoming clogged and causing insufficient air intake, thus preventing a decrease in the heat dissipation efficiency of the electrical components inside the cabinet.

[0051] When the filter screen 23 slides towards the fan blade 19 under negative pressure, it slides and presses against the inclined surface of the locking block 31, causing the locking block 31 to retract into the receiving groove 30 and compress the fourth spring 32. When the filter screen 23 slides to the position aligned with the locking block 31, the locking block 31 pops out under the reset action of the fourth spring 32, causing the filter screen 23 to be locked into the groove, thus achieving temporary positioning of the filter screen 23.

[0052] Simultaneously, the actuating plate 29, rotating synchronously with the fan blade 19, abuts against the rotating plate 27, causing the rotating plate 27 to rotate. As the rotating plate 27 rotates, it slides against the inclined surface of the locking block 31, pressing the locking block 31 back into the receiving groove 30. At the same time, the rotating plate 27 drives the cleaning rod 28 to clean the surface of the filter screen 23, thus relieving the blockage and dissipating the negative pressure inside the air inlet 15. The filter screen 23 automatically resets under the restoring force of the third spring 24, separating the actuating plate 29 from the rotating plate 27.

[0053] When the rotating plate 27 drives the cleaning rod 28 to clean the filter screen 23, the cleaning rod 28, being made of rubber and possessing elasticity, will bend and deform before being inserted into the filter hole 35, thus making close contact with the surface of the filter screen 23. When the guide rod 34 slides along the inclined surface of the protrusion 38, the inclined surface of the protrusion 38 pushes the guide rod 34 to move towards the side of the fan blade 19. The guide rod 34, via the rotating plate 27, drives the cleaning rod 28 to move synchronously, causing the bent cleaning rod 28 to gradually return to its straight state. At the same time, the rotating plate 27 drives the moving rod 36 to slide axially along the sleeve 26 and stretches the fifth spring 37. After the guide rod 34 disengages from the protrusion 38, the fifth spring 37, under the action of resetting, drives the cleaning rod 28 to instantly insert into the corresponding filter hole 35, pushing the dust and impurities accumulated in the filter hole 35 outward and expelling them, achieving deep cleaning of the inside of the filter hole 35, and further improving the overall cleaning quality.

[0054] When the cleaning rod 28 is inserted into the corresponding filter hole 35, if stubborn dust clumps are attached to the inner wall of the filter hole 35, they will obstruct the cleaning rod 28, preventing it from being inserted further. At this time, the rotating plate 27 still drives the sleeve rod 40 to move towards the filter screen 23. Under the obstruction of the stubborn dirt, the cleaning rod 28 is displaced relative to the sleeve rod 40 and compresses the sixth spring 41. At the same time, with the sliding cooperation of the spiral groove 42 and the guide block, the cleaning rod 28 is driven to rotate. While rotating, the cleaning rod 28 rubs and scrapes away the firmly attached dust clumps, causing the stubborn dirt to loosen and fall off, further improving the cleaning efficiency and cleaning effect inside the filter hole 35.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high-voltage switchgear that is easy to maintain, comprising a cabinet (1), wherein a cabinet door (2) is hinged to one side of the cabinet (1), characterized in that, Multiple mounting plates (3) are slidably arranged inside the cabinet (1). Each mounting plate (3) is equipped with a limiting component for locking its position. Multiple cooling pipes (11) are fixedly arranged at equal intervals on the side of the cabinet (1) away from the cabinet door (2). Each cooling pipe (11) corresponds to one of the mounting plates (3). Multiple rows of air inlets (15) are equidistantly opened on the side of the cabinet (1) away from the cabinet door (2). Perforations (16) corresponding to the air inlets (15) are opened on the mounting plates (3). Heat dissipation holes (17) are evenly opened at the bottom of the mounting plates (3). Exhaust vents are opened at the bottom of the cabinet (1). Fan blades (19) are rotatably installed in the holes (18), exhaust holes (18) and air inlets (15). Multiple sets of transmission components are provided on the cooling pipe (11), which drive each fan blade (19) to rotate. When water flows through the cooling pipe (11), the water flow in the cooling pipe (11) can drive the fan blades (19) to rotate through the transmission components. The fan blades (19) draw cold air from the outside into the cabinet (1). The cold air flows through the perforations (16) and passes through the components inside the cabinet for heat exchange. The hot air after heat exchange flows through the heat dissipation holes (17) to the bottom of the cabinet (1) and is discharged through the exhaust holes (18) at the bottom of the cabinet (1), forming an airflow circulation.

2. The high-voltage switchgear for easy maintenance according to claim 1, characterized in that, A filter screen (23) is slidably disposed inside the air inlet (15). A third spring (24) is fixedly disposed between the filter screen (23) and the air inlet (15). A sleeve (26) is rotatably disposed at the center of the side of the filter screen (23) facing the fan blade (19). A rotating plate (27) is disposed at the end of the sleeve (26) away from the filter screen (23). Multiple cleaning rods (28) are disposed along the length of one side of the rotating plate (27). A deflector plate (29) for rotating the rotating plate (27) is fixedly installed on the fan blade (19). When the filter screen (23) is clogged with dust, a negative pressure is formed inside the air inlet (15). The negative pressure drives the filter screen (23) to slide towards the fan blade (19) and drives the rotating plate (27) to move closer to the actuating plate (29). When the fan blade (19) rotates, it drives the actuating plate (29) to rotate as well. During the rotation of the actuating plate (29), it comes into contact with the rotating plate (27), which in turn drives the rotating plate (27) to rotate. The rotating plate (27) drives each cleaning rod (28) to sweep and clean the surface of the filter screen (23).

3. The high-voltage switchgear for easy maintenance according to claim 2, characterized in that, The inner wall of the air inlet (15) is provided with a receiving groove (30), and a locking block (31) is slidably arranged in the receiving groove (30). A fourth spring (32) is fixedly arranged between the locking block (31) and the groove wall of the receiving groove (30). The side of the locking block (31) facing the filter screen (23) is provided with an inclined surface that slides with the filter screen (23). The center of the side of the locking block (31) away from the fourth spring (32) is provided with a locking groove. The other side of the locking block (31) is provided with an inclined surface that slides with the rotating plate (27).

4. The high-voltage switchgear for easy maintenance according to claim 3, characterized in that, The filter screen (23) has a guide groove (33) on its circumference facing the fan blade (19), and a guide rod (34) is fixedly provided on one side of the rotating plate (27), with the guide rod (34) slidingly engaging with the guide groove (33).

5. The high-voltage switchgear for easy maintenance according to claim 4, characterized in that, The diameter of each cleaning rod (28) is adapted to the inner diameter of the filter hole (35) of the filter screen (23), and each cleaning rod (28) can be inserted into the corresponding filter hole (35). The sleeve (26) is equipped with a moving rod (36) by a key connection. The moving rod (36) is fixedly connected to one end of the rotating plate (27). The moving rod (36) can slide along the axial direction of the sleeve (26). A fifth spring (37) is fixedly provided between the moving rod (36) and the sleeve (26). Multiple protrusions (38) are fixedly arranged at equal intervals along the path of the guide rail. One side of the protrusion (38) is provided with an inclined surface. The guide rod (34) slides with the inclined surface of the protrusion (38).

6. The high-voltage switchgear for easy maintenance according to claim 5, characterized in that, The rotating plate (27) has a plurality of equally spaced striking rods (39) fixedly arranged along its length on the side facing the filter screen (23). The striking rods (39) are used to strike the filter screen (23).

7. The high-voltage switchgear for easy maintenance according to claim 6, characterized in that, The rotating plate (27) has multiple sleeves (40) arranged at equal intervals along its length on the side facing the filter screen (23). One end of the cleaning rod (28) is slidably embedded in the sleeve (40). A sixth spring (41) is fixedly arranged between the cleaning rod (28) and the corresponding sleeve (40). A spiral groove (42) is opened on the surface of the cleaning rod (28). A guide block that slides with the spiral groove (42) is fixedly arranged on the inner wall of the sleeve (40).

8. The easy-to-maintain high-voltage switchgear according to any one of claims 1-7, characterized in that, The transmission assembly includes a water wheel (20) rotatably disposed in the cooling pipe (11) and a first bevel gear (21) coaxially fixedly connected thereto. A second bevel gear (22) is coaxially fixedly connected to the fan blade (19), and the second bevel gear (22) meshes with the first bevel gear (21).

9. The high-voltage switchgear for easy maintenance according to claim 1, characterized in that, The limiting component includes a plug rod (4) that is slidably disposed in the mounting plate (3) and a plug (5) that is fixedly installed at one end of the plug rod (4). The inner wall of the cabinet (1) is provided with multiple sockets (6) that are adapted to the plug (5) at equal intervals along the horizontal direction. The plug (5) is inserted into the socket (6). The mounting plate (3) is also provided with a driving component for driving the plug (5) to insert into or detach from the socket (6).

10. The easy-to-maintain high-voltage switchgear according to claim 9, characterized in that, The drive assembly includes a sliding plate (7) slidably mounted in the mounting plate (3) and a drive plate (8) fixedly mounted on the bottom of the sliding plate (7). The mounting plate (3) has a groove, the sliding plate (7) is slidably mounted in the groove, the end of the sliding rod away from the plug (5) extends into the groove and has an inclined surface, one end of the sliding plate (7) has an inclined surface that slides with the sliding rod, the other end of the sliding plate (7) is fixedly mounted between the mounting plate (3) and the other end of the sliding plate (7), a first spring (9) is fixedly mounted between the plug (5) and the mounting plate (3), a second spring (10) is fixedly mounted between the plug (5) and the mounting plate (3), the bottom surface of the mounting plate (3) has a clearance groove that communicates with the groove, the drive plate (8) slides with the clearance groove and one end of the drive plate (8) extends to the outside of the mounting plate (3).

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