An active power filter with convenient installation and adjustment

Abstract

The utility model discloses a kind of active power filter of convenient installation adjustment, including outer protective box and open-close door, the side of outer protective box is provided with open-close door, and open-close door is movably connected with outer protective box, the inner wall of outer protective box is symmetrically provided with track, the inside of outer protective box is provided with moving plate, the bottom end of moving plate is symmetrically installed with two groups of pulleys, and pulley is slidably connected with track, the top end of moving plate is symmetrically installed with placing rack, and U-shaped frame is provided between two groups of placing rack, the both sides of U-shaped frame are provided with sliding block, the surface of sliding block is provided with limit slot, the inner wall of placing rack is provided with sliding slot, and sliding block is slidably connected with sliding slot. The utility model not only realizes the quick dismounting use of convenient, the use height of filter is conveniently adjusted, and the flexibility of filter adjustment installation is improved.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to an active power filter that is easy to install and adjust. Background Technology

[0002] An active power filter is a new type of power electronic device used for dynamic harmonic suppression and reactive power compensation. It can compensate for harmonics of varying magnitude and frequency as well as reactive power. As the name suggests, an active power filter requires a power supply (to compensate for harmonics in the main circuit). Its application overcomes the shortcomings of traditional harmonic suppression and reactive power compensation methods such as LC filters (traditional methods can only provide fixed compensation), achieving dynamic tracking compensation. Moreover, it can compensate for both harmonics and reactive power. Traditional active power filters require adjustment before installation, and are then fixed in the cabinet. Traditional adjustment methods often involve manually removing and adjusting the filter, which is inefficient. To improve this situation, an active power filter that is easy to install and adjust is proposed.

[0003] For example, the active power filter that is easy to install disclosed in the authorization announcement number CN221633205U includes a filter body, a mating plate, a side plate, a support block, a locking block, a locking assembly, and a crimping assembly. A mating plate is provided on one side of the filter body, and side plates are welded on both sides of the mating plate. A support block is provided on each side plate, and a locking block is provided on one side of each support block. The support block and the locking block are connected together to the locking assembly, and a crimping assembly is installed on the locking assembly. While it enables convenient installation and removal of filters, it also improves the stability of filter installation, prevents loosening, and has the advantages of easy disassembly and simple operation; However, this does not solve the problem that existing filters are not convenient for quick and easy disassembly and assembly, nor are they conducive to flexible adjustment of the filter's height, thus affecting the flexibility of filter adjustment and installation. Utility Model Content

[0004] The purpose of this invention is to provide an active power filter that is easy to install and adjust, in order to solve the problems mentioned in the background art, such as the filter being inconvenient to quickly and easily disassemble and use, the filter's height being difficult to adjust flexibly, and the filter's installation and adjustment flexibility being affected.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an active power filter that is easy to install and adjust, comprising an outer protective box and an opening / closing door. The opening / closing door is provided on one side of the outer protective box and is movably connected to the outer protective box. Tracks are symmetrically arranged on the inner wall of the outer protective box. A movable plate is provided inside the outer protective box. Two sets of pulleys are symmetrically installed at the bottom end of the movable plate and are slidably connected to the track. Placement racks are symmetrically installed at the top end of the movable plate, and a U-shaped frame is provided between the two sets of placement racks. Slider blocks are provided on both sides of the U-shaped frame, and the surface of each slider is provided with a limiting groove. Sliding grooves are provided on the inner wall of each placement rack, and the sliders are slidably connected to the sliding grooves. Multiple sets of equally spaced pin holes are provided on the outer wall of each placement rack, and a first locking pin is provided inside each pin hole. The first locking pin is threadedly connected to the pin hole and extends into the limiting groove. Inner protective boxes are provided on the side walls of each U-shaped frame, and short connecting plates are provided on the outer walls of each inner protective box.

[0006] Preferably, each of the inner protective boxes is equipped with a filter body, and each of the filter bodies has a long connecting plate on its side wall.

[0007] Preferably, each of the side walls of the long connecting plate is symmetrically equipped with a plug-in post, and the plug-in post is fixedly connected to the long connecting plate.

[0008] Preferably, each of the short connecting plates has a symmetrically installed plug socket on its sidewall, and the plug post can be inserted into the interior of the plug socket.

[0009] Preferably, the surface of each plug post is provided with a groove, and the interior of each plug seat is provided with a hinge shaft.

[0010] Preferably, the surfaces of the hinge shafts are movably mounted with limiting blocks, and the limiting blocks are slidably connected to the grooves.

[0011] Preferably, each of the limiting blocks is provided with a tension spring on its sidewall, and the tension spring is connected to the plug-in seat.

[0012] Preferably, a second locking pin is provided at the top of the plug-in seat on one side of the limiting block, and the second locking pin extends into the interior of the plug-in seat and is threadedly connected to the plug-in seat.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the filter not only realizes convenient and quick disassembly and assembly, and facilitates flexible adjustment of the filter's height, but also improves the flexibility of filter adjustment and installation. (1) Before installing the filter body, first open the opening and closing door, pull out the moving plate. Under the sliding cooperation of the pulley and the track, the pulley slides inside the track. The moving plate drives the placement frame to move to the outside of the outer protective box. Open the inner protective box, take out the filter body, and move the filter body to the inside of the inner protective box. The long connecting plate and the filter body are initially connected together. The filter body drives the plug-in post to move through the long connecting plate and inserts the plug-in post into the plug-in seat. Under the sliding cooperation of the plug-in post and the limiting block, the plug-in post drives the limiting block to rotate around the hinge axis. The limiting block pulls the tension spring and causes the tension spring to deform. When the groove moves to the position of the limiting block... When the tension spring is engaged, it drives the limiting block to rotate and reset around the hinge axis, causing the limiting block to engage inside the groove. The second locking pin is then inserted into the plug seat and tightened. The second locking pin limits the limiting block and prevents it from shifting, thus fixing the plug and the plug seat in place. This fixes the filter body inside the inner protective box, completing the installation of the filter body. When the filter body needs to be disassembled, simply loosen the second locking pin from the plug seat and pull it out to quickly remove the filter body from the inner protective box. This allows for convenient and quick disassembly and assembly, facilitating the pulling and placing of the filter. (2) When it is necessary to adjust the height of the inner protective box, loosen the first locking pin and unscrew the first locking pin from the pin hole so that the first locking pin is disengaged from the limiting groove. Move the U-shaped frame. Under the sliding cooperation of the slider and the slide groove, the U-shaped frame drives the slider to slide in the slide groove. The U-shaped frame drives the inner protective box to move, thereby adjusting the position of the inner protective box up and down to flexibly adapt its usage height and complete the adjustment and installation of the filter. This realizes the flexible adjustment of the filter's usage height and improves the flexibility of filter adjustment and installation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional perspective structural diagram of the placement rack of this utility model; Figure 3 This is a three-dimensional perspective structural diagram of the inner protective box of this utility model; Figure 4 This is a top sectional view of the connector structure of this utility model; Figure 5 This is a three-dimensional perspective structural diagram of the connector of this utility model.

[0015] In the diagram: 1. Outer protective box; 2. Track; 3. Moving plate; 4. Placement rack; 5. Inner protective box; 6. Slide groove; 7. First locking pin; 8. Pin hole; 9. Pulley; 10. Filter body; 11. Long connecting plate; 12. Short connecting plate; 13. U-shaped frame; 14. Slider; 15. Plug-in socket; 16. Tension spring; 17. Hinge shaft; 18. Limiting block; 19. Plug-in post; 20. Second locking pin; 21. Opening and closing door; 22. Limiting groove; 23. Groove. Detailed Implementation

[0016] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0017] Please see Figure 1-5 This utility model provides an embodiment of an active power filter that is easy to install and adjust, comprising an outer protective box 1 and an opening / closing door 21. The opening / closing door 21 is provided on one side of the outer protective box 1 and is movably connected to the outer protective box 1. Tracks 2 are symmetrically arranged on the inner wall of the outer protective box 1. A movable plate 3 is provided inside the outer protective box 1. Two sets of pulleys 9 are symmetrically installed at the bottom end of the movable plate 3 and are slidably connected to the track 2. Placement racks 4 are symmetrically installed at the top end of the movable plate 3, and a U-shaped frame 1 is provided between the two sets of placement racks 4. 3. Sliders 14 are provided on both sides of the U-shaped frame 13. Limiting grooves 22 are provided on the surface of the sliders 14. Sliding grooves 6 are provided on the inner wall of the placement frame 4. The sliders 14 are slidably connected to the sliding grooves 6. Multiple sets of pin holes 8 are provided at equal intervals on the outer wall of the placement frame 4. A first locking pin 7 is provided inside the pin hole 8. The first locking pin 7 is threadedly connected to the pin hole 8. The first locking pin 7 extends into the inner wall of the limiting groove 22. An inner protective box 5 is provided on the side wall of the U-shaped frame 13. A short connecting plate 12 is provided on the outer wall of the inner protective box 5. Before installing the filter body 10, first open the opening door 21, pull out the moving plate 3. Under the sliding cooperation of the pulley 9 and the track 2, the pulley 9 slides inside the track 2. The moving plate 3 drives the placement rack 4 to move to the outside of the outer protective box 1. Open the inner protective box 5, take out the filter body 10, and move the filter body 10 into the inner protective box 5. The long connecting plate 11 and the filter body 10 are initially connected together. The filter body 10 drives the plug 19 to move through the long connecting plate 11 and inserts the plug 19 into the plug seat 15. Under the sliding cooperation of the plug 19 and the limiting block 18, the plug 19 drives the limiting block 18 to rotate around the hinge shaft 17. The limiting block 18 pulls the tension spring 16 and causes the tension spring 16 to deform. When the groove 23 moves to the limiting block... When in position 18, under the elastic cooperation of tension spring 16, tension spring 16 drives the limiting block 18 to rotate and reset around hinge shaft 17, and the limiting block 18 is locked into the inside of groove 23. The second locking pin 20 is inserted into the inside of plug seat 15 and the second locking pin 20 is tightened. The second locking pin 20 limits the limiting block 18 and prevents the limiting block 18 from shifting, so that plug post 19 and plug seat 15 are fixedly connected, thereby fixing the filter body 10 inside the inner protective box 5, thus completing the installation of filter body 10. When it is necessary to disassemble the filter body 10, simply loosen the second locking pin 20 from the plug seat 15 and pull it out, and the filter body 10 can be quickly removed from the inside of the inner protective box 5, realizing convenient and quick disassembly and assembly, and facilitating the pulling and putting away of the filter. The inner protective box 5 is equipped with a filter body 10, and the side wall of the filter body 10 is equipped with a long connecting plate 11. The side walls of the long connecting plate 11 are symmetrically equipped with plug-in pins 19, and the plug-in pins 19 are fixedly connected to the long connecting plate 11. The side walls of the short connecting plate 12 are symmetrically equipped with plug-in seats 15, and the plug-in pins 19 can be inserted into the interior of the plug-in seats 15. The surface of each plug post 19 is provided with a groove 23, and the interior of each plug seat 15 is provided with a hinge shaft 17. The surface of each hinge shaft 17 is movably mounted with a limit block 18, and the limit block 18 is slidably connected to the groove 23. Each of the side walls of the limiting block 18 is provided with a tension spring 16, and the tension spring 16 is connected to the plug-in seat 15; The top of the plug-in seat 15 on one side of the limiting block 18 is provided with a second locking pin 20, and the second locking pin 20 extends into the interior of the plug-in seat 15 and is threadedly connected to the plug-in seat 15. When the height of the inner protective box 5 needs to be adjusted, loosen the first locking pin 7 and unscrew it from the pin hole 8, so that the first locking pin 7 is disengaged from the limiting groove 22. Move the U-shaped frame 13. With the sliding cooperation between the slider 14 and the slide groove 6, the U-shaped frame 13 drives the slider 14 to slide in the slide groove 6. The U-shaped frame 13 drives the inner protective box 5 to move, thereby adjusting the position of the inner protective box 5 up and down to flexibly adapt its usage height, so as to complete the adjustment and installation of the filter. This realizes the flexible adjustment of the filter's usage height and improves the flexibility of filter adjustment and installation.

[0018] Working principle: Before installing the filter body 10, first open the opening door 21, pull out the moving plate 3. Under the sliding cooperation of the pulley 9 and the track 2, the pulley 9 slides inside the track 2. The moving plate 3 drives the placement rack 4 to move to the outside of the outer protective box 1. Open the inner protective box 5, take out the filter body 10, and move the filter body 10 into the inner protective box 5. The long connecting plate 11 is initially connected to the filter body 10. The filter body 10 is moved through the long connecting plate 11. The movable plug 19 moves and inserts into the plug seat 15. Under the sliding engagement of the plug 19 and the limiting block 18, the plug 19 drives the limiting block 18 to rotate around the hinge shaft 17. The limiting block 18 pulls the tension spring 16 and causes the tension spring 16 to deform. When the groove 23 moves to the position of the limiting block 18, under the elastic engagement of the tension spring 16, the tension spring 16 drives the limiting block 18 to rotate and reset around the hinge shaft 17, and the limiting block 18 is locked into the groove 23, thus locking the second locking pin. Insert the second locking pin 20 into the connector 15 and tighten it. The second locking pin 20 limits the position of the limiting block 18, preventing it from shifting. This secures the connector 19 to the connector 15, thus fixing the filter body 10 inside the inner protective box 5. This completes the installation of the filter body 10. When it is necessary to disassemble the filter body 10, simply loosen the second locking pin 20 from the connector 15 and pull it out. The filter body 10 can then be quickly removed from the inner protective box. The inner protective box 5 is removed. When the height of the inner protective box 5 needs to be adjusted, the first locking pin 7 is loosened and unscrewed from the pin hole 8, so that the first locking pin 7 is disengaged from the limiting groove 22. The U-shaped frame 13 is moved. Under the sliding cooperation of the slider 14 and the slide groove 6, the U-shaped frame 13 drives the slider 14 to slide in the slide groove 6. The U-shaped frame 13 drives the inner protective box 5 to move, thereby adjusting the position of the inner protective box 5 up and down to flexibly adapt its height and complete the adjustment and installation of the filter.

[0019] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An active power filter that is easy to install and adjust, comprising an outer protective box (1) and an opening / closing door (21), characterized in that: The outer protective box (1) has an opening and closing door (21) on one side, and the opening and closing door (21) is movably connected to the outer protective box (1). The inner wall of the outer protective box (1) is symmetrically provided with rails (2). The outer protective box (1) is provided with a movable plate (3). The bottom end of the movable plate (3) is symmetrically equipped with two sets of pulleys (9), and the pulleys (9) are slidably connected to the rails (2). The top of the movable plate (3) is symmetrically equipped with a placement rack (4), and a U-shaped frame (13) is provided between the two sets of placement racks (4). The U-shaped frame (13) is provided with sliders (14) on both sides. (14) is provided with a limiting groove (22) on its surface. The inner wall of the placement rack (4) is provided with a sliding groove (6), and the slider (14) is slidably connected to the sliding groove (6). The outer wall of the placement rack (4) is provided with multiple sets of pin holes (8) at equal intervals. The first locking pin (7) is provided inside the pin hole (8). The first locking pin (7) is threadedly connected to the pin hole (8), and the first locking pin (7) extends into the inside of the limiting groove (22). The side wall of the U-shaped frame (13) is provided with an inner protective box (5), and the outer wall of the inner protective box (5) is provided with a short connecting plate (12).

2. The active power filter that is easy to install and adjust according to claim 1, characterized in that: The inner protective box (5) is equipped with a filter body (10), and the side wall of the filter body (10) is equipped with a long connecting plate (11).

3. The active power filter that is easy to install and adjust according to claim 2, characterized in that: The sidewalls of the long connecting plate (11) are symmetrically equipped with plug-in posts (19), and the plug-in posts (19) are fixedly connected to the long connecting plate (11).

4. The active power filter that is easy to install and adjust according to claim 1, characterized in that: The short connecting plate (12) is symmetrically equipped with plug-in sockets (15) on its side wall, and the plug-in post (19) can be inserted into the interior of the plug-in socket (15).

5. An active power filter that is easy to install and adjust according to claim 3, characterized in that: The surface of each plug post (19) is provided with a groove (23), and the interior of each plug seat (15) is provided with a hinge shaft (17).

6. The active power filter that is easy to install and adjust according to claim 5, characterized in that: Limiting blocks (18) are movably mounted on the surface of the hinge shaft (17), and the limiting blocks (18) are slidably connected to the groove (23).

7. An active power filter that is easy to install and adjust according to claim 6, characterized in that: Each of the limiting blocks (18) is provided with a tension spring (16) on its side wall, and the tension spring (16) is connected to the plug-in seat (15).

8. An active power filter that is easy to install and adjust according to claim 6, characterized in that: The top of the plug-in seat (15) on one side of the limiting block (18) is provided with a second locking pin (20), and the second locking pin (20) extends into the interior of the plug-in seat (15) and is threadedly connected to the plug-in seat (15).

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