An intelligent dynamic reactive power compensation and harmonic suppression integrated power distribution cabinet

Abstract

This invention relates to the field of power distribution cabinet technology and discloses an intelligent dynamic reactive power compensation and harmonic suppression integrated power distribution cabinet. It includes a cabinet body, a cabinet door on the front of the cabinet body, a door frame groove on the side of the door near the cabinet body, an air inlet extending through the front of the cabinet body, a radiator housed within the door frame groove, and an air outlet on the top of the cabinet body. The radiator includes a fixed frame located at the inner opening of the air inlet, and a ventilation opening extending through the surface of the fixed frame. This intelligent dynamic reactive power compensation and harmonic suppression integrated power distribution cabinet, through the radiator, intercepts dust in the air with a filter plate, preventing this dust from entering the cabinet and affecting its safe and stable operation and the core function of power quality management. After a period of time, a moving shaft drives the filter plate to move, causing the dust-adhered parts of the filter plate to move away from the ventilation opening, and the clean parts to move into the ventilation opening. This ensures stable airflow during cooling and improves the cooling effect.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, and in particular to an integrated intelligent dynamic reactive power compensation and harmonic suppression power distribution cabinet. Background Technology

[0002] With the continuous advancement of the construction of new power systems, nonlinear power loads and impactful electrical equipment are being widely used in industrial production, commercial power distribution, and distributed grid connection of new energy. During the operation of the power grid, power quality problems such as reactive power imbalance, excessive harmonic distortion, and abnormal power factor fluctuations are becoming increasingly prominent. These problems not only significantly increase the transmission losses of distribution lines and cause excessive temperature rise and a significant reduction in the service life of transformers and various distribution equipment, but also easily lead to safety hazards such as grid voltage fluctuations, three-phase load imbalance, over-compensation and under-compensation of reactive power, and harmonic resonance. These issues seriously threaten the stability of power supply in the distribution network, the operational safety of electrical equipment, and the economic benefits of power companies and electricity users. To address the dual needs of dynamic reactive power regulation and comprehensive harmonic control in the power grid, integrated intelligent dynamic reactive power compensation and harmonic suppression distribution cabinets, with their core advantages such as high integration, fast compensation response, high accuracy in harmonic control, and strong intelligent monitoring and control capabilities, are gradually replacing traditional separate reactive power compensation devices and harmonic control equipment. They have become the core key equipment for optimizing and controlling power quality in low-voltage distribution systems and are widely used in various mainstream distribution scenarios such as industrial plant power distribution, new energy power plant power distribution, urban commercial complexes, and industrial parks.

[0003] Currently, existing intelligent dynamic reactive power compensation and harmonic suppression integrated distribution cabinets contain a variety of precision core electrical components, including static var generators, harmonic suppression filter modules, intelligent measurement and control terminals, capacitor reactance compensation components, power sampling and detection units, main control circuit boards, and high-power power electronic devices. These components continuously generate a large amount of operating heat during long-term continuous operation. If the heat cannot be dissipated from the cabinet in a timely and rapid manner, it can easily lead to a sharp increase in the operating temperature inside the cabinet, causing overheating and aging of power electronic devices, decreased compensation control accuracy, failure of harmonic suppression function, and reduced insulation performance of components. In some cases, it can even lead to safety faults such as short circuits, tripping, and equipment burnout, directly affecting the overall power quality management efficiency and long-term operational reliability of the integrated distribution cabinet. Based on this, all existing integrated distribution cabinets are equipped with a forced cooling and ventilation system. This system mainly involves opening ventilation vents on the side walls, doors, or top of the cabinet, and using cooling fans to create air convection circulation between the inside of the cabinet and the external environment. This continuous ventilation and heat dissipation method quickly removes the residual heat from the components inside the cabinet, ensuring that all electrical components inside the cabinet operate stably within the standard rated operating temperature range, thus meeting the basic heat dissipation and cooling requirements for continuous and uninterrupted operation of the distribution cabinet.

[0004] However, in the actual application of existing integrated distribution cabinet cooling and ventilation systems, the aforementioned conventional forced cooling and ventilation structures have fundamental technical defects. The core shortcoming is that during the cooling and ventilation operation, a large amount of dust, particulate matter, suspended impurities, and fine pollutants from the external environment are simultaneously drawn into the cabinet along with the external fresh air. Most integrated distribution cabinets are installed in complex and harsh environments such as industrial production workshops, outdoor power distribution stations, and open-air power distribution rooms in industrial parks. In these installation scenarios, the air is filled with a large amount of metal dust, coal ash particles, construction dust, fibrous impurities, and various fine suspended pollutants. During the air convection process created by the continuous start and stop of the cooling and ventilation fans, external dust-laden air flows directly into the cabinet through the ventilation vents without effective filtration and purification. A large amount of dust particles quickly settle and accumulate on the surfaces and in the gaps between various precision electrical components inside the cabinet, such as the intelligent control motherboard, power electronic devices, capacitor compensation components, terminal blocks, conductive busbars, and harmonic suppression filter modules.

[0005] Accumulated dust over time can trigger a series of negative technical problems, severely restricting the safe and stable operation of integrated distribution cabinets and the core functions of power quality management: First, dust accumulation on the heat dissipation surfaces of electrical components significantly reduces their heat dissipation efficiency, exacerbating overheating and creating a vicious cycle of poor heat dissipation, increased dust accumulation, excessive temperature rise, and accelerated component aging, shortening the overall lifespan of various precision electrical components and the entire distribution cabinet. Second, conductive dust accumulation on conductive busbars, terminals, and circuit contacts significantly reduces electrical insulation gaps, lowering the internal electrical insulation performance of the cabinet and easily leading to creepage, leakage, phase-to-phase short circuits, and equipment malfunctions. Electrical safety accidents such as discharge breakdown can induce power distribution system tripping and shutdown, equipment burnout, and even electric shock hazards. Third, dust accumulation covering the intelligent sampling and detection unit and the main control and measurement terminal can lead to distortion of the sampling accuracy of voltage, current, power factor, and harmonic data, resulting in delayed dynamic reactive power compensation response, compensation accuracy deviation, and inadequate harmonic suppression, leading to problems such as under-compensation, over-compensation, and harmonic control failure, which cannot meet the power quality management standards of the power distribution network. Fourth, dust accumulation inside the cabinet will form conductive sludge after becoming damp, further aggravating electrical corrosion and insulation aging, increasing the frequency of equipment failure repair and maintenance costs, and significantly increasing the operational safety risks of the power distribution system. Summary of the Invention

[0006] Given that existing technologies lack dustproof and filtration structures for heat dissipation and ventilation, dust easily accumulates in the cabinet under harsh operating conditions, leading to poor heat dissipation, reduced insulation, inaccurate sampling, frequent malfunctions, accelerated equipment aging, and increased maintenance costs, thus hindering the safe and reliable operation of the distribution cabinet and the effectiveness of power quality management, a smart dynamic reactive power compensation and harmonic suppression integrated distribution cabinet is proposed.

[0007] This application provides an integrated intelligent dynamic reactive power compensation and harmonic suppression distribution cabinet. Its purpose is to optimize the integrated structure of cabinet heat dissipation, ventilation, and dust protection. While ensuring efficient heat dissipation and cooling of electrical components inside the cabinet, it effectively filters and purifies incoming air impurities, eliminating various safety hazards and functional failures caused by dust accumulation. This ensures the accuracy of equipment sampling and detection, and the stability of compensation and harmonic control operations, extending equipment lifespan, reducing operation and maintenance costs, and laying a solid foundation for optimizing power quality in the distribution network and ensuring the safe and long-term operation of the distribution system.

[0008] The technical solution of the present invention is as follows: an integrated intelligent dynamic reactive power compensation and harmonic suppression distribution cabinet, comprising a cabinet body, a cabinet door disposed on the front of the cabinet body, a door frame groove opened on the side of the cabinet door near the cabinet body, an air inlet opened through the front of the cabinet body, a radiator disposed in the door frame groove, and an air outlet disposed on the top of the cabinet body. The radiator includes a fixed frame disposed at the inner opening of the air inlet, a ventilation opening opened through the surface of the fixed frame, a fan disposed in the ventilation opening, a movable slide groove opened on the side of the fixed frame near the cabinet door, a filter plate disposed in the movable slide groove, a movable platform disposed on the top of the filter plate, a movable shaft disposed inside the movable platform, and a movable motor disposed on the side of the fixed frame.

[0009] The ventilation opening is located in the middle of the fixed frame and its length does not exceed one-third of the length of the fixed frame. The length of the filter plate is two-thirds of the length of the moving slide. The moving table is threadedly connected to the moving shaft, and the moving shaft passes through the fixed frame and is connected to the moving motor.

[0010] Furthermore, the inner wall of the movable chute is provided with assembly grooves at both ends, and a cleaning component is provided in the assembly grooves. A collection groove is provided at the lower edge of the movable chute.

[0011] Furthermore, the inner wall of the door frame groove is provided with a lower flow groove corresponding to the assembly groove.

[0012] Furthermore, the cleaning assembly includes a cleaning block disposed in the assembly groove, guide grooves arranged in a linear array on the side of the cleaning block near the filter plate, a rotating groove disposed on the other side of the cleaning block, a striking block disposed in the guide groove, a crankshaft disposed in the rotating groove, a connecting rod disposed between the striking block and the crankshaft, a transmission groove disposed on the top of the cleaning block, a transmission wheel disposed inside the transmission groove, a rotating wheel disposed outside the crankshaft, and a cover plate disposed at the opening above the transmission groove and the rotating groove.

[0013] The striking block is attached to the filter plate, one side of the transmission wheel is attached to the outer frame of the filter plate, and the other side is attached to the rotating wheel.

[0014] Furthermore, a condenser is provided on the inner side of the door frame groove. The condenser includes a water collection box disposed on the bottom wall of the door frame groove, a top box disposed on the top wall of the door frame groove, a connecting pipe disposed between the water collection box and the top box, a collection pool disposed on the top of the water collection box, an air inlet pipe disposed on the outside of the water collection box, and an air outlet pipe disposed on the outside of the top box.

[0015] The upper and lower ends of the connecting pipe are connected to the top box and the water collection box, respectively. The water collection box is filled with cooling water. The inner wall of the connecting pipe is fitted with a cylindrical absorbent cotton, and the bottom of the absorbent cotton is submerged in the cooling water. The other end of the air inlet pipe extends to the opening of the vent, and the air outlet pipe extends out of the cabinet door.

[0016] Furthermore, the top box extends upwards to the top of the cabinet door.

[0017] Furthermore, the top wall of the connecting pipe is made of a water-permeable ceramic plate.

[0018] Furthermore, the condenser also includes a flow guide boss disposed inside the top box, a lifting boss disposed inside the water collection box, and an air blowing pipe disposed on the top of the lifting boss;

[0019] The connecting pipe is divided into two groups: a condenser pipe and a return pipe.

[0020] The top of the top box has sloping surfaces on both sides. The connection between the air inlet pipe and the water collection box is located below the lifting boss. The other end of the air inlet pipe extends to the opening of the vent. The air outlet pipe extends out of the cabinet door. Both the guide boss and the lifting boss are trapezoidal. The top of the condenser pipe extends through the center of the top of the guide boss. The lower end of the air blowing pipe is located above the lifting boss. The air blowing pipe is inserted into the condenser pipe.

[0021] Furthermore, a heat-conducting plate is provided on the top slope of the top box, and the heat-conducting plate is distributed on both sides of the condenser tube.

[0022] The beneficial effects of this invention are:

[0023] 1. By setting up a radiator, when the fan rotates and draws in air, the dust in the air is intercepted by the filter plate, preventing this dust from entering the cabinet and affecting the safe and stable operation of the cabinet and the core function of power quality management. After a period of time, the moving shaft drives the filter plate to move, so that the dust-adhered part of the filter plate moves away from the vent, and the clean part moves to the vent. This ensures a stable airflow during cooling and improves the cooling effect.

[0024] 2. By setting up a cleaning component, when the filter plate moves, the transmission wheel drives the crankshaft to rotate, which in turn drives the striking block to strike the filter plate, causing the dust attached to the surface of the filter plate to fall off. The filter plate can be reused, ensuring the long-term stable use of the equipment. At the same time, during the movement of the striking block, the air in the guide groove is pushed towards the filter plate, which has a reverse cleaning effect on the filter plate, which can further improve the cleaning effect.

[0025] 3. By installing a condenser, cooling water flows up the absorbent cotton and covers the inner wall of the connecting pipe. Then, air is blown in through the air inlet pipe. The air rises along the connecting pipe and cools it. At the same time, the air promotes the evaporation of cooling water on the absorbent cotton, absorbs heat from the connecting pipe, and further reduces the temperature of the connecting pipe. This allows water vapor entering the cabinet to condense on the surface of the connecting pipe and then flow down into the collection tank, thus preventing water vapor or condensate from affecting the stable operation of the power control unit inside the cabinet.

[0026] 4. By setting up a connecting pipe, the air blowing pipe blows air into the condenser pipe, so that the condenser pipe can achieve a condensation effect. The cooling water vaporized in the condenser pipe will condense in the top box, and then flow back to the water collection box through the return pipe to replenish the cooling water. This can extend the cooling water replenishment cycle. Attached Figure Description

[0027] Figure 1 This is a perspective view of the present invention;

[0028] Figure 2 This is a schematic diagram of the cabinet door of the present invention;

[0029] Figure 3 This is a schematic diagram of the heat sink of the present invention;

[0030] Figure 4 This is a disassembled diagram of the heat sink of the present invention;

[0031] Figure 5 This is a schematic diagram of the cleaning component of the present invention;

[0032] Figure 6 This is a disassembled diagram of the cleaning component of the present invention;

[0033] Figure 7 This is a plan view of the heat sink of the present invention;

[0034] Figure 8 For the present invention Figure 7 Sectional view at point AA;

[0035] Figure 9 For the present invention Figure 8 Enlarged view at point B in the middle;

[0036] Figure 10 This is a schematic diagram of the condenser of the present invention;

[0037] Figure 11 This is a disassembled diagram of the condenser in Embodiment 2 of the present invention;

[0038] Figure 12 This is a disassembled diagram of the condenser in Embodiment 3 of the present invention;

[0039] Figure 13 This is a cross-sectional view of the condenser in Embodiment 3 of the present invention.

[0040] In the picture:

[0041] 1. Cabinet body; 2. Cabinet door; 21. Door frame groove; 3. Air inlet; 4. Radiator; 41. Fixed frame; 42. Ventilation opening; 43. Fan; 44. Sliding slide; 45. Filter plate; 46. Moving platform; 47. Moving shaft; 48. Moving motor; 49. Assembly slot; 410. Collection slot; 411. Downflow slot; 5. Air outlet; 6. Condenser; 61. Water collection box; 62. Top box; 63. Connecting pipe; 6 31. Condenser; 632. Return pipe; 64. Collection tank; 65. Inlet pipe; 66. Outlet pipe; 67. Guide boss; 68. Lifting boss; 69. Air blowing pipe; 610. Heat-conducting plate; 7. Cleaning assembly; 71. Cleaning block; 72. Guide groove; 73. Tapping block; 74. Rotating groove; 75. Crankshaft; 76. Connecting rod; 77. Transmission groove; 78. Transmission wheel; 79. Rotating wheel; 710. Cover plate. Detailed Implementation

[0042] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Example 1, referring to Figures 1-9 This is the first embodiment of the present invention, which provides an integrated intelligent dynamic reactive power compensation and harmonic suppression distribution cabinet, including a cabinet body 1, a cabinet door 2 disposed on the front of the cabinet body 1, a door frame groove 21 opened on the side of the cabinet door 2 near the cabinet body 1, an air inlet 3 opened through the front of the cabinet body 1, a radiator 4 disposed in the door frame groove 21, and an air outlet 5 disposed on the top of the cabinet body 1. The radiator 4 includes a fixed frame 41 disposed in the inner opening of the air inlet 3, a ventilation opening 42 opened through the surface of the fixed frame 41, a fan 43 disposed in the ventilation opening 42, a movable slide 44 opened on the side of the fixed frame 41 near the cabinet door 2, a filter plate 45 disposed in the movable slide 44, a movable platform 46 disposed on the top of the filter plate 45, a movable shaft 47 disposed inside the movable platform 46, and a movable motor 48 disposed on the side of the fixed frame 41.

[0044] Specifically, a power control unit is installed inside the cabinet 1. The cabinet door 2 is rotatably connected to the cabinet 1. The fixed frame 41 is fixed to the cabinet door 2 by bolts. The vent 42 is connected to the air inlet 3. The fan 43 is fixed inside the vent 42 by screws. It is used to draw in cold air from the air inlet 3 and blow the air into the cabinet 1. The vent 42 is located in the middle of the fixed frame 41 and its length does not exceed one-third of the length of the fixed frame 41. The length of the filter plate 45 is two-thirds of the length of the moving slide 44. The filter plate 45 slides in the moving slide 44. One side of the filter plate 45 covers the opening of the vent 42 and the other side covers the opening of the air inlet 3. The moving platform 46 is fixedly connected to the filter plate 45. The moving platform 46 is threadedly connected to the moving shaft 47. The moving shaft 47 passes through the fixed frame 41 and is connected to the moving motor 48.

[0045] By setting up the radiator 4, when the fan 43 rotates to draw in air, the dust in the air is intercepted by the filter plate 45, preventing the dust from entering the cabinet 1 and affecting the safe and stable operation of the cabinet 1 and the core function of power quality management. After a period of time, the moving shaft 47 drives the filter plate 45 to move, so that the dust-adhered part of the filter plate 45 moves away from the vent 42 and the clean part moves to the vent 42, thus ensuring a stable airflow during cooling and improving the cooling effect.

[0046] Specifically, the inner wall of the movable chute 44 is provided with assembly grooves 49 at both ends, and a cleaning component 7 is provided in the assembly grooves 49. The lower edge of the movable chute 44 is provided with a collection groove 410; the inner wall of the door frame groove 21 is provided with a flow groove 411 corresponding to the assembly grooves 49.

[0047] Assembly slots 49 are distributed on both sides of ventilation openings 42. The bottom of the moving chute 44 and the downflow chute 411 are both provided with inclined surfaces that communicate with the collection chute 410. The downflow chute 411 is correspondingly provided with the cleaning components 7. The number of cleaning components 7 in the assembly slots 49 can be increased or decreased according to different cleaning needs.

[0048] The cleaning assembly 7 includes a cleaning block 71 disposed in the assembly groove 49, guide grooves 72 arranged in a linear array on the side of the cleaning block 71 near the filter plate 45, a rotating groove 74 disposed on the other side of the cleaning block 71, a striking block 73 disposed in the guide groove 72, a crankshaft 75 disposed in the rotating groove 74, a connecting rod 76 disposed between the striking block 73 and the crankshaft 75, a transmission groove 77 disposed on the top of the cleaning block 71, a transmission wheel 78 disposed inside the transmission groove 77, a rotating wheel 79 disposed outside the crankshaft 75, and a cover plate 710 disposed at the opening above the transmission groove 77 and the rotating groove 74.

[0049] Specifically, the cleaning block 71 is snapped into the assembly groove 49, the tapping block 73 is slidably installed in the guide groove 72, the tapping block 73 is in contact with the filter plate 45, the rotating groove 74 connects all the guide grooves 72, the crankshaft 75 is rotatably installed in the rotating groove 74, one end of the connecting rod 76 is rotatably connected to the tapping block 73, and the other end is rotatably snapped into the crankshaft 75, the transmission wheel 78 is rotatably installed in the transmission groove 77, one side of the transmission wheel 78 is in contact with the outer frame of the filter plate 45, and the other side is in contact with the rotating wheel 79, the rotating wheel 79 is sleeved on the outside of the crankshaft 75 and can drive the crankshaft 75 to rotate, and the cover plate 710 is fixed to the cleaning block 71 by bolts.

[0050] By setting up the cleaning component 7, when the filter plate 45 moves, the transmission wheel 78 drives the crankshaft 75 to rotate, which in turn drives the striking block 73 to strike the filter plate 45, causing the dust attached to the surface of the filter plate 45 to fall off. It can then be reused, ensuring the long-term stable use of the equipment. At the same time, during the movement of the striking block 73, it pushes the air in the guide groove 72 toward the filter plate 45, which plays a reverse cleaning role on the filter plate 45, further improving the cleaning effect.

[0051] Example 2, refer to Figure 2 , Figures 10-11 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that a condenser 6 is provided on the inner side of the door frame groove 21. The condenser 6 includes a water collection box 61 provided on the bottom wall of the door frame groove 21, a top box 62 provided on the top wall of the door frame groove 21, a connecting pipe 63 provided between the water collection box 61 and the top box 62, a collection pool 64 provided on the top of the water collection box 61, an air inlet pipe 65 provided on the outside of the water collection box 61, and an air outlet pipe 66 provided on the outside of the top box 62.

[0052] Specifically, the water collection box 61 and the top box 62 are both fixed to the cabinet door 2 by bolts. The upper and lower ends of the connecting pipe 63 are connected to the top box 62 and the water collection box 61 respectively. The water collection box 61 is filled with cooling water. The inner wall of the connecting pipe 63 is fitted with a tubular absorbent cotton, and the bottom of the absorbent cotton is immersed in the cooling water. When in use, absorbent cotton with different capillary gaps is selected according to the length of the connecting pipe 63 so that the absorbent cotton can fully absorb water. The other end of the air inlet pipe 65 extends to the opening of the vent 42 to move air in. The air outlet pipe 66 extends out of the cabinet door 2 to exhaust air. The air inlet pipe 65 is welded to the water collection box 61, and the air outlet pipe 66 is welded to the top box 62.

[0053] By setting up the condenser 6, cooling water flows up the absorbent cotton and covers the inner wall of the connecting pipe 63. Then, air is blown in through the air inlet pipe 65. The air rises along the connecting pipe 63 and cools it. At the same time, the air promotes the evaporation of cooling water on the absorbent cotton and absorbs the heat of the connecting pipe 63, further reducing its temperature. This allows water vapor entering the cabinet 1 to condense on the surface of the connecting pipe 63 and then flow down into the collection tank 64. This prevents water vapor or condensate from affecting the stable operation of the power control unit inside the cabinet 1.

[0054] Specifically, the top box 62 extends upward to the top of the cabinet door 2, allowing it to come into contact with the low-temperature outside air and improve the cooling effect.

[0055] Specifically, the top wall of the connecting pipe 63 is made of a permeable ceramic plate, so that the condensate flowing down the connecting pipe 63 can enter the water collection box 61 to replenish the cooling water in the water collection box 61.

[0056] The remaining structure is the same as that in Example 1.

[0057] Example 3, referring to Figures 12-13 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the condenser 6 further includes a flow guide protrusion 67 disposed inside the top box 62, a lifting protrusion 68 disposed inside the water collection box 61, and an air blowing pipe 69 disposed on the top of the lifting protrusion 68.

[0058] The connecting pipe 63 is divided into two groups: the condenser pipe 631 and the return pipe 632.

[0059] Specifically, the top of the top box 62 has slopes on both sides to guide the condensate to flow to both sides. The connection between the air inlet pipe 65 and the water collection box 61 is located below the lifting boss 68. The other end of the air inlet pipe 65 extends to the opening of the vent 42. The air outlet pipe 66 extends out of the cabinet door 2. The lifting boss 68 is welded to the water collection box 61. The guide boss 67 is welded to the top box 62. Both the guide boss 67 and the lifting boss 68 are trapezoidal. The top of the condenser pipe 631 passes through the center of the top of the guide boss 67. The lower end of the air blowing pipe 69 is located above the lifting boss 68. The air blowing pipe 69 is inserted into the condenser pipe 631. The outer diameter of the air blowing pipe 69 is smaller than the inner diameter of the condenser pipe 631.

[0060] By setting up a connecting pipe 63, the air blowing pipe 69 blows air into the condenser pipe 631, so that the condenser pipe 631 can achieve a condensation effect. The cooling water vaporized in the condenser pipe 631 will condense in the top box 62, and then flow back to the water collection box 61 through the return pipe 632 to replenish the cooling water. This can extend the cooling water replenishment cycle.

[0061] Specifically, heat-conducting plates 610 are welded to the top slope of the top box 62, which can improve the heat dissipation effect of the top box 62, allowing the evaporated cooling water to condense here and flow back into the water collection box 61, further extending the cooling water replenishment cycle. The heat-conducting plates 610 are distributed on both sides of the condenser tube 631.

[0062] The remaining structure is the same as that in Example 2.

[0063] Combining Embodiments 1 and 3, the working principle of the intelligent dynamic reactive power compensation and harmonic suppression integrated distribution cabinet of the present invention is as follows:

[0064] When the fan 43 is turned on, the fan 43 rotates and draws low-temperature air into the vent 42 through the air inlet 3, and then blows it into the cabinet 1 to cool the power control unit inside the cabinet 1. The air that has absorbed heat flows out from the air outlet 5.

[0065] During the process of controlling the flow of air from the inlet 3 into the vent 42, the air will first pass through the filter plate 45. Dust in the air will be intercepted by the filter plate 45. As more and more dust is adsorbed by the filter plate 45, the airflow is obstructed. The moving motor 48 is started. The moving motor 48 drives the moving table 46 and the filter plate 45 to move through the moving shaft 47, so that the area of ​​the filter plate 45 that adsorbs dust leaves the vent 42 and moves to the assembly tank 49. The clean area of ​​the filter plate 45 that was originally located in the assembly tank 49 is moved to the opening of the vent 42.

[0066] During the movement of the filter plate 45, the frame of the filter plate 45 will rub against the transmission wheel 78 to make it rotate. The transmission wheel 78 drives the crankshaft 75 to rotate through the rotating wheel 79. During the rotation of the crankshaft 75, the connecting rod 76 repeatedly pushes and pulls the striking block 73, so that the striking block 73 strikes the filter plate 45 while blowing airflow toward the filter plate 45. The dust adsorbed on the surface of the filter plate 45 falls off and enters the lower flow channel 411, and then slides down into the collection channel 410.

[0067] Part of the air blown out from the vent 42 enters the water collection box 61 through the air inlet pipe 65, and then flows to the condenser pipe 631 through the air blowing pipe 69. The air flows upward along the condenser pipe 631 into the top box 62. During this process, the cooling water in the condenser pipe 631 vaporizes and absorbs heat, which lowers the temperature of the condenser pipe 631 and causes the surrounding water vapor to condense. The condensed water droplets flow down the outer wall of the condenser pipe 631 into the collection pool 64, and then seep into the water collection box 61. Part of the water vapor flowing upward in the condenser pipe 631 is discharged from the air outlet pipe 66, and part of it cools and condenses in the top box 62. The condensed water droplets flow down the inner wall of the return pipe 632 into the water collection box 61.

[0068] 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. An integrated intelligent dynamic reactive power compensation and harmonic suppression distribution cabinet, comprising a cabinet body (1), a cabinet door (2) disposed on the front of the cabinet body (1), a door frame groove (21) opened on the side of the cabinet door (2) near the cabinet body (1), an air inlet (3) penetrating the front of the cabinet body (1), a radiator (4) disposed in the door frame groove (21), and an air outlet (5) disposed on the top of the cabinet body (1), characterized in that: The radiator (4) includes a fixed frame (41) set at the inner opening of the air inlet (3), a vent (42) through the surface of the fixed frame (41), a fan (43) set in the vent (42), a sliding groove (44) set on the side of the fixed frame (41) near the cabinet door (2), a filter plate (45) set in the sliding groove (44), a moving platform (46) set on the top of the filter plate (45), a moving shaft (47) set inside the moving platform (46), and a moving motor (48) set on the side of the fixed frame (41). The ventilation opening (42) is located in the middle of the fixed frame (41) and its length does not exceed one-third of the length of the fixed frame (41). The length of the filter plate (45) is two-thirds of the length of the moving slide (44). The moving table (46) is threadedly connected to the moving shaft (47). The moving shaft (47) passes through the fixed frame (41) and is connected to the moving motor (48).

2. The intelligent dynamic var compensation and harmonic suppression integrated power distribution cabinet according to claim 1, characterized in that: The inner walls of the movable chute (44) are provided with assembly grooves (49) at both ends, and a cleaning component (7) is provided in the assembly grooves (49). A collection groove (410) is provided at the lower edge of the movable chute (44).

3. The intelligent dynamic var compensation and harmonic suppression integrated power distribution cabinet according to claim 2, characterized in that: The inner wall of the door frame groove (21) is provided with a lower flow groove (411) corresponding to the assembly groove (49).

4. The intelligent dynamic var compensation and harmonic suppression integrated power distribution cabinet according to claim 3, characterized in that: The cleaning assembly (7) includes a cleaning block (71) disposed in the assembly groove (49), a guide groove (72) arranged in a linear array on the side of the cleaning block (71) near the filter plate (45), a rotating groove (74) disposed on the other side of the cleaning block (71), a striking block (73) disposed in the guide groove (72), a crankshaft (75) disposed in the rotating groove (74), a connecting rod (76) disposed between the striking block (73) and the crankshaft (75), a transmission groove (77) disposed on the top of the cleaning block (71), a transmission wheel (78) disposed inside the transmission groove (77), a rotating wheel (79) disposed outside the crankshaft (75), and a cover plate (710) disposed at the opening above the transmission groove (77) and the rotating groove (74). The striking block (73) is attached to the filter plate (45), and one side of the transmission wheel (78) is attached to the outer frame of the filter plate (45), while the other side is attached to the rotating wheel (79).

5. The intelligent dynamic var compensation and harmonic suppression integrated power distribution cabinet according to claim 1, characterized in that: A condenser (6) is provided on the inner side of the door frame groove (21). The condenser (6) includes a water collection box (61) provided on the bottom wall of the door frame groove (21), a top box (62) provided on the top wall of the door frame groove (21), a connecting pipe (63) provided between the water collection box (61) and the top box (62), a collection pool (64) provided on the top of the water collection box (61), an air inlet pipe (65) provided on the outside of the water collection box (61), and an air outlet pipe (66) provided on the outside of the top box (62). The upper and lower ends of the connecting pipe (63) are connected to the top box (62) and the water collection box (61) respectively. The water collection box (61) is filled with cooling water. The inner wall of the connecting pipe (63) is fitted with a cylindrical absorbent cotton, and the bottom of the absorbent cotton is submerged in the cooling water. The other end of the air inlet pipe (65) extends to the opening of the vent (42), and the air outlet pipe (66) extends out of the cabinet door (2).

6. The intelligent dynamic var compensation and harmonic suppression integrated power distribution cabinet according to claim 5, characterized in that: The top box (62) extends upward to the top of the cabinet door (2).

7. The intelligent dynamic var compensation and harmonic suppression integrated power distribution cabinet according to claim 5, characterized in that: The top wall of the connecting pipe (63) is made of a permeable ceramic plate.

8. The intelligent dynamic var compensation and harmonic suppression integrated power distribution cabinet according to claim 5, characterized in that: The condenser (6) also includes a flow guide boss (67) disposed inside the top box (62), a lifting boss (68) disposed inside the water collection box (61), and an air blowing pipe (69) disposed on the top of the lifting boss (68). The connecting pipe (63) is divided into two groups: a condenser pipe (631) and a return pipe (632); The top of the top box (62) has inclined surfaces on both sides. The connection between the air inlet pipe (65) and the water collection box (61) is located below the lifting boss (68). The other end of the air inlet pipe (65) extends to the opening of the vent (42). The air outlet pipe (66) extends out of the cabinet door (2). The guide boss (67) and the lifting boss (68) are both trapezoidal. The top of the condenser pipe (631) passes through the center of the top of the guide boss (67). The lower end of the air blowing pipe (69) is located above the lifting boss (68). The air blowing pipe (69) is inserted into the condenser pipe (631).

9. The integrated intelligent dynamic reactive power compensation and harmonic suppression distribution cabinet according to claim 8, characterized in that: The top slope of the top box (62) is provided with heat-conducting plates (610), which are distributed on both sides of the condenser tube (631).

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