Modular shunt active filter

Abstract

The utility model discloses a modularization parallel active filter relates to filter field, including active filter main part, the detachable plate is detachably installed in the wall body of active filter main part, the first positioning piece is fixedly installed on the end surface of active filter main part and below the detachable plate, the first positioning piece is composed of first base pole and first mounting plate, through setting modularization detachable plate on active filter main part, and set up honeycomb vent on detachable plate, set up first positioning piece, second positioning piece on active filter main body, set up first connecting piece, limiting piece on detachable plate, set up second connecting piece on limiting piece, can separately detachable plate clean honeycomb vent, and first positioning piece, second positioning piece, first connecting piece, limiting piece, second connecting piece cooperation, make detachable plate's dismouting be relatively simple and convenient, thereby make honeycomb vent's cleaning efficiency be higher.

Description

Technical Field

[0001] This utility model relates to the field of filters, and in particular to a modular parallel active filter. Background Technology

[0002] Parallel active power filters (APBs), as key devices for suppressing harmonics and compensating reactive power in power systems, are widely used in various scenarios such as industrial production, new energy power generation, and rail transportation due to their advantages of fast response speed, high compensation accuracy, and wide applicability. To ensure stable operation of the equipment, a heat dissipation structure is needed to maintain the appropriate operating temperature of the internal components. Therefore, most APBs are designed with honeycomb ventilation holes in their housings. This structure not only ensures efficient airflow and heat dissipation but also prevents large particles from entering the equipment to a certain extent, thus balancing heat dissipation performance and protection.

[0003] However, during long-term use, the inherent structural defects of honeycomb ventilation holes gradually become apparent: their small pore size and dense distribution allow dust, lint, and other impurities in the air to easily accumulate within the pores. If not cleaned promptly, this leads to reduced ventilation and heat dissipation efficiency, affecting equipment stability and potentially causing overheating and damage to components. Traditional cleaning methods have significant drawbacks: directly cleaning the external ventilation holes is cumbersome and inefficient due to the numerous and fine pores, making it difficult to thoroughly remove accumulated impurities. Furthermore, dust falling off during cleaning can easily enter the equipment through the pores, potentially causing secondary malfunctions such as short circuits and component contamination. Deep cleaning by disassembling the outer casing requires disassembling the equipment's fixed structure and separating the connecting wiring harnesses, a complex and time-consuming process that can damage components due to improper operation, thus failing to meet the need for efficient cleaning. Utility Model Content

[0004] The main objective of this invention is to provide a modular parallel active filter that can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A modular parallel active power filter includes an active power filter body. A detachable plate is detachably mounted inside the wall of the active power filter body. A first positioning member is fixedly mounted on the end face of the active power filter body below the detachable plate. The first positioning member consists of a first base rod and a first mounting plate. The first mounting plate is fixedly mounted on the upper end of the first base rod. Two second positioning members are symmetrically fixedly mounted on the end face of the active power filter body above the detachable plate. The second positioning member consists of a second base rod and a second mounting plate. The second mounting plate is fixedly mounted on the lower end of the second base rod. A first connecting member is fixedly mounted on the lower side of the outer end of the detachable plate. The first connecting member is also mounted on the first positioning member. A connector consists of a first U-shaped frame, a third mounting plate, and a rotating shaft. The third mounting plate is fixedly installed on the upper end of the first U-shaped frame, and the rotating shaft is fixedly installed on the inner wall of the first U-shaped frame. A limiting component is fixedly installed on the upper side of the outer end of the detachable plate. The limiting component consists of an L-shaped frame, a square rod, a spring, and a baffle. The square rod is fixedly installed on the upper end of the L-shaped frame, the spring is sleeved on the square rod, and the baffle is fixedly installed on the upper end of the square rod. A second connector is slidably sleeved on the square rod. The second connector is simultaneously installed on two symmetrically arranged second positioning components. The second connector consists of a second U-shaped frame and a hanging rod. The hanging rod is fixedly installed on the inner wall of the second U-shaped frame. The detachable plate has honeycomb ventilation holes.

[0006] Preferably, the active filter body has a mounting groove on its wall.

[0007] Preferably, the first positioning member is located below the mounting groove, the first mounting plate is fixedly installed at one end of the active filter body by bolts, the lower end of the first base rod is provided with a first groove, the second positioning member is located above the mounting groove, the second mounting plate is fixedly installed at one end of the active filter body by bolts, and the upper end of the second base rod is provided with a second groove.

[0008] Preferably, the detachable plate is installed in the mounting groove, the third mounting plate on the first connector is fixedly installed on the lower side of the outer end of the detachable plate by bolts, the first U-shaped frame is sleeved on the outside of the first positioning member, and the rotating shaft is movably installed in the first groove opened at the lower end of the first base rod.

[0009] Preferably, the L-shaped frame on the limiting member is fixedly installed on the upper outer side of the detachable plate by bolts, and a square hole is opened on one side wall of the second U-shaped frame on the second connecting member. The second U-shaped frame is movably sleeved on the square rod through the square hole. The spring is located inside the second U-shaped frame. The second U-shaped frame is sleeved on the outside of the two second positioning members. The hanging rod is movably installed in the second groove opened at the upper end of the second base rod.

[0010] Compared with the prior art, the present invention has the following beneficial effects: By setting a modular, detachable plate on the active filter body and placing the honeycomb ventilation holes on the detachable plate, and by setting a first positioning component consisting of a first base rod and a first mounting plate, a second positioning component consisting of a second base rod and a second mounting plate on the active filter body, a first connecting component consisting of a first U-shaped frame, a third mounting plate, and a rotating shaft on the detachable plate, a limiting component consisting of an L-shaped frame, a square rod, a spring, and a baffle, and a second connecting component consisting of a second U-shaped frame and a hanging rod on the limiting component, the detachable plate can be disassembled separately to clean the honeycomb ventilation holes. The cooperation of the first positioning component, the second positioning component, the first connecting component, the limiting component, and the second connecting component makes the disassembly and assembly of the detachable plate simple and convenient, thereby achieving high cleaning efficiency for the honeycomb ventilation holes. This effectively avoids the problems of incomplete external cleaning, easy secondary failures, and complex, time-consuming, and labor-intensive disassembly and cleaning processes that can easily damage the equipment. It ensures the cleaning effect while reducing the difficulty of cleaning operations and the impact on the equipment, thus ensuring the heat dissipation performance and operational stability of the parallel active filter and extending the service life of the equipment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the active filter body, the first positioning component, and the second positioning component of this utility model; Figure 3 This is a structural schematic diagram of the detachable plate, the first connecting member, and the limiting member of this utility model; Figure 4 This is a schematic diagram showing the positional relationship between the first positioning member and the second connecting member of this utility model.

[0012] In the diagram: 1. Active filter body; 2. First positioning component; 3. Second positioning component; 4. Detachable plate; 5. First connecting component; 6. Limiting component; 7. Second connecting component; 8. Mounting groove; 9. First base rod; 10. First mounting plate; 11. First groove; 12. Second base rod; 13. Second mounting plate; 14. Second groove; 15. First U-shaped frame; 16. Third mounting plate; 17. Rotating shaft; 18. L-shaped frame; 19. Square rod; 20. Spring; 21. Baffle; 22. Second U-shaped frame; 23. Square hole; 24. Hanging rod. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] Please see Figure 1- Figure 4 As shown, a modular parallel active filter includes an active filter body 1. A detachable plate 4 is detachably installed inside the wall of the active filter body 1. A first positioning member 2 is fixedly installed on the end face of the active filter body 1 and below the detachable plate 4. The first positioning member 2 consists of a first base rod 9 and a first mounting plate 10. The first mounting plate 10 is fixedly installed on the upper end of the first base rod 9. Two second positioning members 3 are symmetrically fixedly installed on the end face of the active filter body 1 and above the detachable plate 4. The second positioning member 3 consists of a second base rod 12 and a second mounting plate 13. The second mounting plate 13 is fixedly installed on the lower end of the second base rod 12. A first connecting member 5 is fixedly installed on the lower side of the outer end of the detachable plate 4. A connecting piece 5 is simultaneously installed on the first positioning piece 2. The first connecting piece 5 consists of a first U-shaped frame 15, a third mounting plate 16, and a rotating shaft 17. The third mounting plate 16 is fixedly installed on the upper end of the first U-shaped frame 15, and the rotating shaft 17 is fixedly installed on the inner wall of the first U-shaped frame 15. A limiting piece 6 is fixedly installed on the upper side of the outer end of the detachable plate 4. The limiting piece 6 consists of an L-shaped frame 18, a square rod 19, a spring 20, and a baffle 21. The square rod 19 is fixedly installed on the upper end of the L-shaped frame 18, the spring 20 is sleeved on the square rod 19, and the baffle 21 is fixedly installed on the upper end of the square rod 19. A second connecting piece 7 is slidably sleeved on the square rod 19. The second connecting piece 7 is simultaneously installed on two symmetrically arranged second positioning pieces 3. The connector 7 consists of a second U-shaped frame 22 and a hanging rod 24. The hanging rod 24 is fixedly installed on the inner wall of the second U-shaped frame 22. The detachable plate 4 has honeycomb ventilation holes. By setting a modular detachable plate 4 on the active filter body 1 and setting the honeycomb ventilation holes on the detachable plate 4, the active filter body 1 is provided with a first positioning member 2 composed of a first base rod 9 and a first mounting plate 10, a second positioning member 3 composed of a second base rod 12 and a second mounting plate 13, a first connecting member 5 composed of a first U-shaped frame 15, a third mounting plate 16 and a rotating shaft 17, and a limiting member 6 composed of an L-shaped frame 18, a square rod 19, a spring 20 and a baffle 21. The second connector 7, consisting of a second U-shaped frame 22 and a hanging rod 24, allows for the separate removal of the detachable plate 4 for cleaning the honeycomb ventilation holes. The cooperation of the first positioning component 2, the second positioning component 3, the first connector 5, the limiting component 6, and the second connector 7 makes the removal and installation of the detachable plate 4 simple and convenient, resulting in high cleaning efficiency for the honeycomb ventilation holes. This effectively avoids the problems of incomplete external cleaning, which can easily cause secondary malfunctions, and the complex, time-consuming, and labor-intensive process of disassembling the outer casing for cleaning, which can easily damage the equipment. It ensures the cleaning effect while reducing the difficulty of the cleaning operation and the impact on the equipment, thereby guaranteeing the heat dissipation performance and operational stability of the parallel active filter and extending the service life of the equipment.

[0015] Specifically, the active filter body 1 has a mounting groove 8 on its wall. The first positioning member 2 is located below the mounting groove 8. The first mounting plate 10 is fixedly installed at one end of the active filter body 1 by bolts. The lower end of the first base rod 9 has a first groove 11. The second positioning member 3 is located above the mounting groove 8. The second mounting plate 13 is fixedly installed at one end of the active filter body 1 by bolts. The upper end of the second base rod 12 has a second groove 14. The detachable plate 4 is installed in the mounting groove 8. The third mounting plate 16 on the first connecting member 5 is fixedly installed on the lower side of the outer end of the detachable plate 4 by bolts. The first U-shaped frame 15 is sleeved on the outside of the first positioning member 2. The rotating shaft 17 is movably installed in the first groove 11 at the lower end of the first base rod 9. The L-shaped frame 18 on the limiting member 6 is connected to the first positioning member 2. The active filter body 1 is fixedly installed on the upper side of the outer end of the detachable plate 4 by bolts. A square hole 23 is opened on one side wall of the second U-shaped frame 22 on the second connector 7. The second U-shaped frame 22 is movably sleeved on the square rod 19 through the square hole 23. The spring 20 is located on the inner side of the second U-shaped frame 22. The second U-shaped frame 22 is sleeved on the outer side of the two second positioning parts 3. The hanging rod 24 is movably installed in the second groove 14 opened at the upper end of the second base rod 12. When the active filter body 1 is working, it suppresses harmonics and compensates reactive power in the power system through its internal components, ensuring the stable operation of the power system. At the same time, the honeycomb ventilation holes on the detachable plate 4 play the role of air circulation and efficient heat dissipation, blocking large particles of impurities from entering the interior of the active filter body 1 and maintaining a suitable working temperature for the internal components.

[0016] Furthermore, when cleaning the honeycomb ventilation holes periodically, first remove the removable plate 4 from the active filter body 1. Then, pull the second connector 7 upwards, causing the hanging rod 24 to disengage from the second groove 14. At this point, the second U-shaped bracket 22 will slide upwards on the square rod 19, compressing the spring 20. Next, rotate the removable plate 4, the first connector 5, the limiting member 6, and the second connector 7 around the rotating shaft 17 in a direction away from the active filter body 1, causing the removable plate 4 to disengage from the mounting slot 8. Then, move the removable plate 4, the first connector 5, the limiting member 6, and the second connector 7 downwards, causing the rotating shaft 17 to disengage from the first groove 11. Afterwards, use a high-pressure cleaning device to rinse the honeycomb ventilation holes on the removable plate 4, or use an air compressor in conjunction with a high-pressure air spray gun to clean the honeycomb ventilation holes. Once the honeycomb ventilation holes are cleaned... First, the rotating shaft 17 is inserted into the first groove 11. Then, the detachable plate 4, the first connecting piece 5, the limiting piece 6, and the second connecting piece 7 are rotated around the rotating shaft 17 towards the active filter body 1. At the same time, the second connecting piece 7 is pulled, causing the second U-shaped frame 22 to slide on the square rod 19, compressing the spring 20. When the detachable plate 4 is inserted into the mounting groove 8, the hanging rod 24 will be above the two second positioning pieces 3. Then, the second connecting piece 7 is released. Under the elastic force of the spring 20, the second U-shaped frame 22 will slide downward on the square rod 19, and the second U-shaped frame 22 will move downward with the hanging rod 24. Finally, the hanging rod 24 will be inserted into the second groove 14. At this time, the installation of the detachable plate 4 and the cleaning of the honeycomb ventilation holes are completed, restoring the normal heat dissipation function of the active filter body 1.

[0017] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A modular parallel active filter, comprising an active filter body (1), characterized in that: A detachable plate (4) is detachably installed inside the wall of the active filter body (1). A first positioning member (2) is fixedly installed on the end face of the active filter body (1) and below the detachable plate (4). The first positioning member (2) consists of a first base rod (9) and a first mounting plate (10). The first mounting plate (10) is fixedly installed on the upper end of the first base rod (9). Two second positioning members (3) are symmetrically fixedly installed on the end face of the active filter body (1) and above the detachable plate (4). The second positioning member (3) consists of a second base rod (12) and a second mounting plate (13). The second mounting plate (13) is fixedly installed on the lower end of the second base rod (12). A first connecting member (5) is fixedly installed on the lower side of the outer end of the detachable plate (4). The first connecting member (5) is also installed on the first positioning member (2). The first connecting member (5) consists of a first U-shaped frame (15), a third mounting plate (16), and a rotating shaft (17). 7) Composition: The third mounting plate (16) is fixedly installed on the upper end of the first U-shaped frame (15), the rotating shaft (17) is fixedly installed on the inner wall of the first U-shaped frame (15), and a limiting member (6) is fixedly installed on the upper side of the outer end of the detachable plate (4). The limiting member (6) is composed of an L-shaped frame (18), a square rod (19), a spring (20), and a baffle (21). The square rod (19) is fixedly installed on the upper end of the L-shaped frame (18), and the spring (20) is sleeved on... On the square rod (19), the baffle (21) is fixedly installed at the upper end of the square rod (19). The square rod (19) is slidably fitted with a second connector (7). The second connector (7) is simultaneously installed on two symmetrically arranged second positioning pieces (3). The second connector (7) is composed of a second U-shaped frame (22) and a hanging rod (24). The hanging rod (24) is fixedly installed on the inner wall of the second U-shaped frame (22). The detachable plate (4) is provided with honeycomb ventilation holes.

2. A modular parallel active filter according to claim 1, characterized in that: The active filter body (1) has an installation groove (8) on its wall.

3. A modular parallel active filter according to claim 2, characterized in that: The first positioning member (2) is located below the mounting groove (8), the first mounting plate (10) is fixedly installed at one end of the active filter body (1) by bolts, the lower end of the first base rod (9) is provided with a first groove (11), the second positioning member (3) is located above the mounting groove (8), the second mounting plate (13) is fixedly installed at one end of the active filter body (1) by bolts, and the upper end of the second base rod (12) is provided with a second groove (14).

4. A modular parallel active filter according to claim 3, characterized in that: The detachable plate (4) is installed in the mounting groove (8). The third mounting plate (16) on the first connector (5) is fixedly installed on the lower side of the outer end of the detachable plate (4) by bolts. The first U-shaped frame (15) is sleeved on the outside of the first positioning member (2). The rotating shaft (17) is movably installed in the first groove (11) opened at the lower end of the first base rod (9).

5. A modular parallel active filter according to claim 4, characterized in that: The L-shaped frame (18) on the limiting member (6) is fixedly installed on the upper side of the outer end of the detachable plate (4) by bolts. A square hole (23) is provided on one side wall of the second U-shaped frame (22) on the second connecting member (7). The second U-shaped frame (22) is movably sleeved on the square rod (19) through the square hole (23). The spring (20) is located inside the second U-shaped frame (22). The second U-shaped frame (22) is sleeved on the outside of the two second positioning members (3). The hanging rod (24) is movably installed in the second groove (14) opened at the upper end of the second base rod (12).

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