A drawer-type power quality correction device

Abstract

The present application relates to the technical fields of power quality correction, in particular to a drawer type power quality correction device, which comprises a cabinet body, a cabinet door rotatably installed on one side of the cabinet body, a plurality of mounting bases fixedly installed in the interior of the cabinet body, and a plurality of active filter bodies, the bottom of each of the plurality of connecting shafts is fixedly installed with a bar, the top of each of the plurality of U-shaped supports is provided with a guide mechanism, the bottom of each of the plurality of U-shaped supports is provided with a bearing support, the top of each of the plurality of bearing supports is fixedly connected with a corresponding mounting base, the interior of each of the plurality of bearing supports is provided with a reset mechanism, and the bottom of each of the plurality of mounting bases is provided with an operating mechanism, which solves the problem that the active filter body itself is heavy in the prior art, resulting in that a single person is more laborious when pushing and pulling the active filter body, and can improve the operating efficiency of disassembling and assembling the active filter body.

Description

Technical Field

[0001] This invention relates to the field of power quality correction technology, specifically a drawer-type power quality correction device. Background Technology

[0002] With the rapid development of power electronic conversion technology, nonlinear and impulsive loads such as electric vehicles, variable frequency air conditioners, and LED lighting are widely used in distribution networks. This leads to complex power quality problems in the power grid, including voltage distortion, sags, spikes, and harmonic pollution. These issues not only affect users' electricity experience but may also threaten the safe and stable operation of the power system. To address these problems, power quality correction devices are widely used in distribution networks. Among them, drawer-type power quality correction devices have become one of the mainstream application forms due to their modularity, small footprint, and ease of maintenance.

[0003] The core component of existing drawer-type power quality correction devices is an active power filter. The active power filter is usually installed on top of a mounting bracket inside the cabinet. Operators push and pull the active power filter to fix it on top of the mounting bracket for maintenance, replacement, or expansion operations. When fixing the active power filter on top of the mounting bracket, the operator usually places the active power filter on top of the mounting bracket and adjusts its position by pushing it to ensure that it is fixed in the right position. However, the active power filter is usually quite heavy, and the bottom of the active power filter is in direct contact with the mounting bracket, which generates a lot of friction. Therefore, it is quite strenuous for a single person to push and pull the active power filter, resulting in low operating efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a drawer-type power quality correction device to solve the problems mentioned in the background art, such as the fact that the active filter itself is usually heavy, and the bottom of the active filter is in direct contact with the mounting bracket, which will generate a large friction force, making it difficult for a single person to push and pull the active filter and resulting in low operating efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drawer-type power quality correction device, comprising a cabinet, a cabinet door rotatably mounted on one side of the cabinet, multiple mounting bases fixedly mounted inside the cabinet, and multiple active filter bodies. The multiple active filter bodies are respectively fixedly mounted on the tops of the multiple mounting bases. Multiple evenly distributed U-shaped brackets are fixedly mounted on the bottoms of the multiple mounting bases. Multiple evenly distributed connecting shafts are rotatably mounted inside the multiple U-shaped brackets. Strip rods are fixedly mounted on the bottoms of the multiple connecting shafts. A guide mechanism is provided on the tops of the multiple U-shaped brackets. A bearing bracket is provided on the bottoms of the multiple U-shaped brackets. The tops of the multiple bearing brackets are fixedly connected to their respective corresponding mounting bases. A reset mechanism is provided inside the multiple bearing brackets. An operating mechanism is provided on the bottoms of the multiple mounting bases.

[0006] The guiding mechanism includes multiple fixed brackets, each with a guide wheel rotatably mounted inside. Each fixed bracket has a rotating shaft fixedly mounted at its bottom, and each rotating shaft has a cross bar fixedly mounted at its bottom. Each connecting shaft has a cross groove inside, and each cross bar cooperates with its corresponding cross groove. A transmission component is provided on one side of each fixed bracket.

[0007] The transmission assembly includes a lifting seat, on which multiple evenly distributed lifting plates are fixedly installed. The ends of the lifting plates away from the lifting seat are rotatably sleeved on the outside of their respective rotating shafts. Two positioning rods are slidably sleeved at both ends of the lifting seat. The bottoms of the four positioning rods are fixedly connected to the bearing bracket, and the tops of the four positioning rods are fixedly connected to the mounting base. A guide groove is provided inside the lifting seat, and a transmission rod is movably installed inside the guide groove.

[0008] The guide groove consists of an inclined groove and a horizontal groove, and the inclined groove and the horizontal groove are interconnected. Both the inclined groove and the horizontal groove cooperate with the transmission rod.

[0009] The reset mechanism includes a first connecting crossbar and a second connecting crossbar. A synchronization component is provided between the first connecting crossbar and the second connecting crossbar. Both ends of the first connecting crossbar and the second connecting crossbar are slidably fitted with positioning rods. Both positioning rods are fixedly installed inside the support bracket. Multiple evenly distributed top rods are fixedly installed on the side of the first connecting crossbar near the second connecting crossbar. Multiple evenly distributed top rods are fixedly installed on the side of the second connecting crossbar near the first connecting crossbar. The positions of the multiple top rods and the multiple top rods correspond to the positions of their respective strip rods. The ends of the multiple top rods away from the second connecting crossbar are slidably fitted with auxiliary rods. The sides of the multiple auxiliary rods near the second connecting crossbar are fixedly fitted with springs.

[0010] The synchronization component includes two strip grooves and two rotating shafts. The two strip grooves are respectively opened at the bottom of their respective connecting crossbars one and two. The bottom of the two rotating shafts is rotatably connected to the support bracket. Connecting rods are fixedly sleeved on the outside of the two rotating shafts. Sliding blocks are rotatably installed at both ends of multiple connecting rods. Multiple sliding blocks are slidably installed inside their respective strip grooves.

[0011] The operating mechanism includes a threaded rod and a positioning rod three. The threaded rod is rotatably mounted on one end of the bottom of the mounting base, and the positioning rod three is fixedly mounted on the other end of the bottom of the mounting base. An adjusting bracket is threadedly connected to the outside of the threaded rod. The ends of multiple adjusting brackets away from the threaded rod are slidably sleeved on the outside of the positioning rod three. One side of multiple connecting crossbars is fixedly connected to their respective adjusting brackets, and both sides of multiple transmission rods are fixedly connected to their respective adjusting brackets.

[0012] The mounting bases have multiple evenly distributed grooves inside, and the guide wheels are respectively disposed inside their respective grooves. Both ends of the mounting bases have multiple evenly distributed mounting slots.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes a guiding mechanism and an operating mechanism to extend the guide wheels upwards into the grooves. The active filter body is then placed on top of multiple guide wheels for pushing and pulling, effectively reducing friction between the active filter body and the top of the mounting base. Therefore, it is easier for a single person to push the active filter body, solving the problem in the prior art where the active filter body is too heavy, making it difficult for a single person to push and pull the active filter body. This improves the efficiency of assembling and disassembling the active filter body.

[0014] After the active filter body is pushed linearly to the appropriate position, the present invention can make multiple guide wheels rotate freely due to the inevitable deviation during manual pushing. This facilitates subsequent fine-tuning of the active filter body. At the same time, it also facilitates rotation and other operations during subsequent maintenance of the active filter body, greatly improving the efficiency of disassembly, assembly and maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the cabinet of the present invention; Figure 3 This is a schematic diagram of the active filter body and mounting base structure of the present invention; Figure 4 This is a schematic diagram of the top structure of the mounting base of the present invention; Figure 5 This is a schematic diagram of the bottom structure of the mounting base of the present invention; Figure 6 This is a partial structural diagram of the present invention; Figure 7 This is a schematic diagram of the reset mechanism, guide mechanism, and operating mechanism of the present invention; Figure 8 This is a schematic diagram of the reset mechanism and guide mechanism of the present invention; Figure 9 This is a schematic diagram of the guiding mechanism structure of the present invention; Figure 10 This is a partial structural diagram of the lifting seat and U-shaped bracket of the present invention; Figure 11 This is a partial structural diagram of the lifting seat of the present invention; Figure 12 This is a schematic diagram of the connecting shaft structure of the present invention; Figure 13 This is a schematic diagram of the support structure of the present invention; Figure 14 This is a schematic diagram of the connecting crossbar one and connecting crossbar two of the present invention; Figure 15 This is a schematic diagram of the second type of push rod structure of the present invention; Figure 16 This is a schematic diagram of the synchronization component structure of the present invention.

[0016] In the attached diagram, the components represented by each number are as follows: 1. Cabinet; 2. Active filter body; 3. Mounting base; 4. U-shaped bracket; 5. Connecting shaft; 6. Strip rod; 7. Bearing bracket; 8. Fixed bracket; 9. Guide wheel; 10. Rotating shaft; 11. Cross rod; 12. Cross groove; 13. Lifting seat; 14. Lifting plate; 15. Positioning rod one; 16. Transmission rod; 17. Inclined groove; 18. Horizontal groove; 19. Connecting crossbar one; 20. Connecting crossbar two; 21. Positioning rod two; 22. Top rod one; 23. Top rod two; 24. Auxiliary rod; 25. Spring; 26. Strip slide; 27. Rotating shaft; 28. Connecting rod; 29. ​​Sliding block; 30. Threaded rod; 31. Positioning rod three; 32. Adjusting bracket; 33. Cabinet door; 34. Groove; 35. Mounting groove. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] This invention provides a technical solution: such as Figure 1 - Figure 16 The drawer-type power quality correction device shown includes a cabinet 1, a cabinet door 33 rotatably mounted on one side of the cabinet 1, multiple mounting bases 3 fixedly mounted inside the cabinet 1, and multiple active filter bodies 2. The multiple active filter bodies 2 are respectively fixedly mounted on the top of the multiple mounting bases 3. Multiple evenly distributed U-shaped brackets 4 are fixedly mounted on the bottom of each of the multiple mounting bases 3. Multiple evenly distributed connecting shafts 5 are rotatably mounted inside each of the multiple U-shaped brackets 4. Strip rods 6 are fixedly mounted on the bottom of each of the multiple connecting shafts 5. A guide mechanism is provided on the top of each of the multiple U-shaped brackets 4. A bearing bracket 7 is provided on the bottom of each of the multiple U-shaped brackets 4. The top of each of the multiple bearing brackets 7 is fixedly connected to its corresponding mounting base 3. A reset mechanism is provided inside each of the multiple bearing brackets 7. An operating mechanism is provided on the bottom of each of the multiple mounting bases 3.

[0019] The guiding mechanism includes multiple fixed brackets 8, with guide wheels 9 rotatably mounted inside each fixed bracket 8. A rotating shaft 10 is fixedly mounted at the bottom of each fixed bracket 8, and a cross rod 11 is fixedly mounted at the bottom of each rotating shaft 10. A cross groove 12 is opened inside each of the multiple connecting shafts 5, and the multiple cross rods 11 cooperate with their respective cross grooves 12. A transmission component is provided on one side of each fixed bracket 8.

[0020] The transmission assembly includes a lifting seat 13. Multiple evenly distributed lifting plates 14 are fixedly installed on the side of the lifting seat 13 near the multiple fixed supports 8. The ends of the multiple lifting plates 14 away from the lifting seat 13 are rotatably sleeved on the outside of their respective rotating shafts 10. Two positioning rods 15 are slidably sleeved on both ends of the lifting seat 13. The bottoms of the four positioning rods 15 are fixedly connected to the bearing support 7, and the tops of the four positioning rods 15 are fixedly connected to the mounting base 3. A guide groove is opened inside the lifting seat 13, and a transmission rod 16 is movably installed inside the guide groove.

[0021] The guide groove consists of an inclined groove 17 and a horizontal groove 18, and the inclined groove 17 and the horizontal groove 18 are interconnected. Both the inclined groove 17 and the horizontal groove 18 cooperate with the transmission rod 16.

[0022] The reset mechanism includes a connecting crossbar 19 and a connecting crossbar 20. A synchronization component is provided between the connecting crossbar 19 and the connecting crossbar 20. Both ends of the connecting crossbar 19 and the connecting crossbar 20 are slidably fitted with positioning rods 21. Both positioning rods 21 are fixedly installed inside the bearing bracket 7. Multiple evenly distributed top rods 22 are fixedly installed on the side of the connecting crossbar 19 near the connecting crossbar 20. Multiple evenly distributed top rods 23 are fixedly installed on the side of the connecting crossbar 20 near the connecting crossbar 19. The multiple top rods 22 and the multiple top rods 23 correspond to the positions of their respective strip rods 6. The ends of the multiple top rods 23 away from the connecting crossbar 20 are slidably fitted with auxiliary rods 24. The sides of the multiple auxiliary rods 24 near the connecting crossbar 20 are fixedly fitted with springs 25.

[0023] The synchronization component includes two strip grooves 26 and two rotating shafts 27. The two strip grooves 26 are respectively opened at the bottom of their respective connecting crossbar 19 and connecting crossbar 20. The bottom of the two rotating shafts 27 are rotatably connected to the bearing bracket 7. Connecting rods 28 are fixedly sleeved on the outside of the two rotating shafts 27. Sliding blocks 29 are rotatably installed at both ends of the multiple connecting rods 28. The multiple sliding blocks 29 are slidably installed inside their respective strip grooves 26.

[0024] The operating mechanism includes a threaded rod 30 and a positioning rod 31. The threaded rod 30 is rotatably mounted on one end of the bottom of the mounting base 3, and the positioning rod 31 is fixedly mounted on the other end of the bottom of the mounting base 3. An adjusting bracket 32 ​​is threadedly connected to the outside of the threaded rod 30. The ends of multiple adjusting brackets 32 away from the threaded rod 30 are slidably sleeved on the outside of the positioning rod 31. One side of multiple connecting crossbars 19 is fixedly connected to their respective adjusting brackets 32, and both sides of multiple transmission rods 16 are fixedly connected to their respective adjusting brackets 32.

[0025] Multiple mounting bases 3 have multiple evenly distributed grooves 34 inside, and multiple guide wheels 9 are respectively set inside their respective corresponding grooves 34. Multiple evenly distributed mounting slots 35 are opened at both ends of the multiple mounting bases 3.

[0026] Working principle: In use, first open the cabinet door 33, then rotate the threaded rod 30. Under the action of the positioning rod 31, multiple adjusting brackets 32 move away from their respective corresponding lifting seats 13. In the initial state, multiple guide wheels 9 extend out of their respective corresponding grooves 34. The movement process of one set of guiding mechanisms and reset mechanisms is as follows: The transmission rod 16 moves with the corresponding adjusting bracket 32. The transmission rod 16 first slides inside the horizontal groove 18. At the same time, the connecting crossbar 19 also moves away from the lifting seat 13 synchronously with the adjusting bracket 32. The two connecting rods 28 outside the two rotating shafts 27 rotate. Multiple sliding blocks 29 slide inside their respective corresponding strip grooves 26. As the connecting crossbar 20 moves, it moves closer to the connecting crossbar 19 in sync. Multiple top rods 22 move synchronously with the connecting crossbar 19, and multiple top rods 23 move synchronously with the connecting crossbar 20. Multiple top rods 22 and multiple top rods 23 move closer to their respective strip rods 6. Multiple top rods 22 and multiple top rods 23 push the sides of their respective strip rods 6. Among them, the auxiliary rod 24 in the multiple top rods 23 first pushes the corresponding strip rod 6, causing the strip rod 6 to deflect. Under the action of their respective cross rods 11 and cross grooves 12, the multiple strip rods 6 drive the rotating shaft 10, fixed bracket 8 and guide wheel 9 at their top to rotate, so that the multiple guide wheels 9 are in the center position. At this time, the active filter body 2 is placed on top of the mounting base 3. The bottom of the active filter body 2 contacts multiple guide wheels 9. Under the action of multiple guide wheels 9, the active filter body 2 can be pushed linearly on the top of the mounting base 3, reducing the friction between the active filter body 2 and the top of the mounting base 3. Therefore, it is easier for a single person to push the active filter body 2. This solves the problem in the prior art that the active filter body 2 is heavy, which makes it difficult for a single person to push and pull the active filter body 2. It can improve the efficiency of disassembling and assembling the active filter body 2. Since manual pushing inevitably leads to some deviation, after pushing the active filter body 2 to the appropriate position, the threaded rod 30 is reversed, and the adjusting bracket 32 ​​moves towards the side closer to the lifting seat 13. At this time, the connecting crossbar 20 and the connecting crossbar 19 move away from each other, and the multiple top rods 122 and multiple top rods 23 move away from their respective corresponding strip rods 6. At this time, the multiple strip rods 6 and their top connecting shafts 5 are in a free rotation state. At this time, the operator can fine-tune the position of the active filter body 2 until the position is appropriate, and then continue to reverse the threaded rod 30. At this time, the transmission rod 16 moves synchronously with the adjusting bracket 32. The transmission rod 16 slides from the horizontal groove 18 to the inside of the inclined groove 17, and the lifting seat 13 moves steadily downward along the four positioning rods 15. The multiple lifting plates 14 move downward synchronously, thereby driving the multiple rotating shafts 10 and the corresponding fixed brackets 8 and guide wheels 9 to move downward synchronously. The multiple guide wheels 9 retract into the groove 34, so that the active filter body 2 is located on the top of the mounting base 3, and then it can be fixed. After the active filter body 2 is pushed linearly to the appropriate position, since there will inevitably be some deviation when pushing manually, the operating mechanism can make multiple guide wheels 9 rotate freely, which facilitates the subsequent fine adjustment of the active filter body 2. At the same time, it is also convenient to rotate the active filter body 2 during subsequent maintenance, which greatly improves the efficiency of disassembly, assembly and maintenance.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drawer-type power quality correction device, comprising a cabinet (1), a cabinet door (33) rotatably mounted on one side of the cabinet (1), multiple mounting bases (3) fixedly mounted inside the cabinet (1), and multiple active filter bodies (2), characterized in that: Multiple active filter bodies (2) are fixedly installed on the top of multiple mounting bases (3). Multiple evenly distributed U-shaped brackets (4) are fixedly installed on the bottom of each of the multiple mounting bases (3). Multiple evenly distributed connecting shafts (5) are rotatably installed inside each of the multiple U-shaped brackets (4). A strip rod (6) is fixedly installed at the bottom of each of the multiple connecting shafts (5). A guide mechanism is provided on the top of each of the multiple U-shaped brackets (4). A bearing bracket (7) is provided at the bottom of each of the multiple U-shaped brackets (4). The top of each of the multiple bearing brackets (7) is fixedly connected to its corresponding mounting base (3). A reset mechanism is provided inside each of the multiple bearing brackets (7). An operating mechanism is provided at the bottom of each of the multiple mounting bases (3).

2. The drawer-type power quality correction device according to claim 1, characterized in that: The guiding mechanism includes multiple fixed brackets (8), with guide wheels (9) rotatably mounted inside each fixed bracket (8). A rotating shaft (10) is fixedly mounted at the bottom of each fixed bracket (8), and a cross rod (11) is fixedly mounted at the bottom of each rotating shaft (10). A cross groove (12) is opened inside each connecting shaft (5), and each cross rod (11) cooperates with its corresponding cross groove (12). A transmission component is provided on one side of each fixed bracket (8).

3. The drawer-type power quality correction device according to claim 2, characterized in that: The transmission assembly includes a lifting seat (13). Multiple evenly distributed lifting plates (14) are fixedly installed on one side of the lifting seat (13) near multiple fixed supports (8). The ends of the multiple lifting plates (14) away from the lifting seat (13) are rotatably sleeved on the outside of their respective rotating shafts (10). Two positioning rods (15) are slidably sleeved on both ends of the lifting seat (13). The bottoms of the four positioning rods (15) are fixedly connected to the bearing support (7), and the tops of the four positioning rods (15) are fixedly connected to the mounting base (3). A guide groove is opened inside the lifting seat (13), and a transmission rod (16) is movably installed inside the guide groove.

4. The drawer-type power quality correction device according to claim 3, characterized in that: The guide groove is composed of an inclined groove (17) and a horizontal groove (18), and the inclined groove (17) and the horizontal groove (18) are interconnected. The inclined groove (17) and the horizontal groove (18) are both in cooperation with the transmission rod (16).

5. A drawer-type power quality correction device according to claim 3, characterized in that: The reset mechanism includes a connecting crossbar one (19) and a connecting crossbar two (20). A synchronization component is provided between the connecting crossbar one (19) and the connecting crossbar two (20). Both ends of the connecting crossbar one (19) and the connecting crossbar two (20) are slidably fitted with positioning rods two (21). Both positioning rods two (21) are fixedly installed inside the bearing bracket (7). Multiple evenly distributed top rods one (19) are fixedly installed on the side of the connecting crossbar one (19) near the connecting crossbar two (20). 22), multiple evenly distributed top rods 2 (23) are fixedly installed on the side of the connecting crossbar 2 (20) near the connecting crossbar 1 (19). The multiple top rods 1 (22) and multiple top rods 2 (23) are respectively positioned opposite to their respective strip rods (6). The ends of the multiple top rods 2 (23) away from the connecting crossbar 2 (20) are all slidably fitted with auxiliary rods (24). The sides of the multiple auxiliary rods (24) near the connecting crossbar 2 (20) are all fixedly fitted with springs (25).

6. The drawer-type power quality correction device according to claim 5, characterized in that: The synchronization component includes two strip grooves (26) and two rotating shafts (27). The two strip grooves (26) are respectively opened at the bottom of their respective connecting crossbar one (19) and connecting crossbar two (20). The bottom of the two rotating shafts (27) is rotatably connected to the bearing bracket (7). Connecting rods (28) are fixedly sleeved on the outside of the two rotating shafts (27). Sliding blocks (29) are rotatably installed at both ends of the multiple connecting rods (28). The multiple sliding blocks (29) are slidably installed inside their respective strip grooves (26).

7. A drawer-type power quality correction device according to claim 5, characterized in that: The operating mechanism includes a threaded rod (30) and a positioning rod (31). The threaded rod (30) is rotatably mounted on one end of the bottom of the mounting base (3), and the positioning rod (31) is fixedly mounted on the other end of the bottom of the mounting base (3). An adjusting bracket (32) is threadedly connected to the outside of the threaded rod (30). The ends of the multiple adjusting brackets (32) away from the threaded rod (30) are slidably sleeved on the outside of the positioning rod (31). One side of the multiple connecting crossbars (19) is fixedly connected to their respective adjusting brackets (32), and both sides of the multiple transmission rods (16) are fixedly connected to their respective adjusting brackets (32).

8. A drawer-type power quality correction device according to claim 2, characterized in that: The mounting bases (3) have multiple evenly distributed grooves (34) inside, and the guide wheels (9) are respectively disposed inside their respective corresponding grooves (34). Both ends of the mounting bases (3) have multiple evenly distributed mounting slots (35).

Images