A power electronic single-phase two-column reactor

Abstract

This application relates to the field of reactor technology, specifically disclosing a power electronic single-phase two-column reactor, including a lower yoke, a connecting rod, an upper yoke, core columns, and windings. The connecting rod is fixedly installed on the outer surface of the lower yoke, and the upper yoke is provided at the end of the connecting rod away from the lower yoke. A nut is threadedly connected to the outer surface of the connecting rod. This invention has a double buffering effect through the clamping assembly, which can effectively buffer the electromagnetic vibration generated during reactor operation, avoid vibration transmission caused by rigid fixing, reduce loosening of silicon steel sheets in the core and displacement of windings, reduce operating noise, and can promptly issue an alarm and perform secondary buffering when the core and windings experience large shaking. The heat dissipation assembly can uniformly dissipate heat from the reactor, making the temperature of multiple core columns and windings relatively uniform, preventing aging of insulation materials, and can deliver airflow between the core and coils when accelerating airflow, thereby improving the heat dissipation effect.

Description

Technical Field

[0001] This application relates to the field of reactor technology, and in particular to a power electronic single-phase two-column reactor. Background Technology

[0002] With the widespread application of power electronics technology in new energy grid connection, power quality management, and flexible power transmission, the demand for single-phase reactors, as core equipment for reactive power compensation, harmonic suppression, and current limiting, is increasing. The two-column core structure has become the mainstream configuration for single-phase reactors due to its advantages such as symmetrical magnetic circuit, low leakage flux, and compact structure. However, single-phase two-column reactors mostly use traditional core lamination and coil winding processes, which are prone to problems such as core loosening and winding deformation during long-term operation, affecting grid stability. Therefore, there is an urgent need to develop a power electronic single-phase two-column reactor to meet the high stability requirements of modern power electronic systems.

[0003] The existing technology still has the following problems:

[0004] 1. Most existing reactors use rigid clamps to fix the iron core and windings in the yoke, which does not have a buffering effect. The fixed connection cannot absorb or reduce vibration. Under long-term operation, the silicon steel sheets of the iron core undergo periodic magnetostrictive deformation, which causes the iron core and windings to vibrate continuously. Long-term rigid vibration impact will cause the iron core laminations and windings to be subjected to alternating mechanical stress, which can easily cause the iron core laminations to loosen and misalign, the insulating varnish film to wear and crack, leading to inter-turn short circuits, accelerated insulation aging, and reduced service life of the reactor.

[0005] 2. Existing reactors have poor heat dissipation efficiency. The fans are all fixedly connected to the reactors. The fixed fans can only dissipate heat to specific areas of the reactor, resulting in large temperature differences between different parts of the reactor. The parts closer to the fan have good heat dissipation and lower temperature, while the parts farther away from the fan have insufficient heat dissipation and higher temperature. Under long-term operation, the high temperature area may accelerate the aging of the insulation material and reduce the service life of the reactor. In addition, under the effect of thermal expansion and contraction, the gap between the laminations of the iron core changes, the laminations become loose and misaligned, and the deformation cannot be compensated for. This will generate additional mechanical stress, causing winding deformation and displacement, and local warping of the iron core. Long-term operation will reduce the structural stability of the equipment. Summary of the Invention

[0006] To overcome the shortcomings of traditional reactors that use rigid clamps to fix the core and windings in the yoke, which lacks buffering effect and cannot absorb or reduce vibration, and where long-term operation causes periodic magnetostrictive deformation of the silicon steel sheets in the core, resulting in high-frequency impacts from alternating magnetic pull at the air gap with the current, coupled with electromagnetic forces acting on the current-carrying conductors of the windings, leading to continuous vibration of the core and windings, poor heat dissipation efficiency, and fixed-connection fans that can only dissipate heat to specific areas of the reactor, resulting in significant temperature differences between different parts of the reactor—areas closer to the fan have better heat dissipation and lower temperatures, while areas further away from the fan have insufficient heat dissipation and higher temperatures—the high-temperature areas may accelerate the aging of insulation materials and reduce the lifespan of the reactor over long-term operation, this invention aims to provide a power electronic single-phase two-column reactor to solve the above-mentioned deficiencies.

[0007] This application provides a power electronic single-phase two-column reactor, including a lower yoke, a connecting rod, an upper yoke, a core column, and windings. The connecting rod is fixedly installed on the outer surface of the lower yoke, and the upper yoke is provided at the end of the connecting rod away from the lower yoke. A nut is threadedly connected to the outer surface of the connecting rod. The core column is provided between the lower yoke and the upper yoke, and windings are wound on the outer surface of the core column. Clamping assemblies are provided in the inner cavities of both the lower yoke and the upper yoke. A heat dissipation assembly is provided in the inner cavity of the lower yoke. The clamping assembly includes a clamping plate, and a first threaded rod is rotatably connected to the inner cavity of the clamping plate. A first buffer mechanism is provided at both ends of the clamping plate, and a second buffer mechanism is provided on the outer surface of the clamping plate. The clamping plate is located at both ends of the core column, and the clamping plate is slidably connected to the inner walls of the lower yoke and the upper yoke.

[0008] Furthermore, the first buffer mechanism includes a first buffer rod, which is fixedly connected to a clamping plate. A first spring is sleeved on the outer surface of the first buffer rod, and a first alarm mechanism is provided at both ends of the clamping plate. The first buffer rod at the upper end is slidably connected to the upper yoke, and the first spring is located between the clamping plate and the upper yoke. The first buffer rod at the lower end is slidably connected to the lower yoke, and the first spring is located between the clamping plate and the lower yoke.

[0009] Furthermore, the first alarm mechanism includes a connecting plate, a first alarm is fixedly installed on the outer surface of the connecting plate, a first button is provided on the outer surface of the connecting plate, a first elastic rod is slidably connected to the inner cavity of the connecting plate, a second spring is sleeved on the outer surface of the first elastic rod, a buffer plate is fixedly installed at one end of the first elastic rod, a connecting block is fixedly installed on the outer surface of the buffer plate, a retaining sleeve is rotatably connected to the end of the connecting block away from the buffer plate, a first fixing block is fixedly installed on the inner wall of both the lower yoke and the upper yoke, a first retaining groove is provided in the middle part of the first fixing block, a first inclined block is fixedly installed at both ends of the first fixing block, and a first pressing block is fixedly installed in the middle part of the buffer plate.

[0010] Furthermore, the inner walls of the connecting plate and the clamping plate are fixedly connected, the first alarm and the first button are electrically connected, and pressing the first button controls the first button to emit an alarm. The two ends of the first button are rounded, the end of the first pressing block near the first button is chamfered, the second spring is located between the connecting plate and the buffer plate, and the clamping cylinder and the first clamping groove are engaged.

[0011] Furthermore, the second buffer mechanism includes a movable block, which is slidably connected to a clamping plate. The movable block and a first threaded rod are connected by threads. The threads at both ends of the first threaded rod are in opposite directions, and the movable block moves towards or away from each other when the first threaded rod rotates. A clamping block is slidably connected to the inner cavity of the movable block. A first sliding rod is fixedly installed at both ends of the clamping block. A third spring is sleeved on the outer surface of the first sliding rod. The first sliding rod and the movable block are slidably connected. The third spring is located between the clamping block and the movable block. A second threaded rod is rotatably connected to the inner cavity of the clamping block. A clamping arm is slidably connected to both ends of the clamping block. The clamping arm and the second threaded rod are connected by threads. The threads at both ends of the second threaded rod are in opposite directions, and the clamping arm on the second threaded rod moves towards or away from each other when the second threaded rod rotates. A second alarm mechanism is provided on the outer surface of the movable block. The end of the clamping arm away from the clamping block is in close contact with the outer surface of the iron core column.

[0012] Furthermore, the second alarm mechanism includes a second fixed block, with buffer blocks symmetrically distributed within the inner cavity of the second fixed block. A second elastic rod is fixedly installed at one end of the buffer block, and a fourth spring is sleeved on the outer surface of the second elastic rod. A second slot is provided at the end of the buffer block away from the second elastic rod, and a second inclined block is fixedly installed on the outer surface of the buffer block. An alarm block is fixedly installed in the middle of the clamping block, and a locking rod is slidably connected to the inner cavity of the alarm block. A locking ball is movably connected to one end of the locking rod, and a limit ring is fixedly installed on the outer surface of the locking rod. A fifth spring is sleeved on the outer surface of the locking rod. A second button is provided on the inner wall of the alarm block, and a second alarm is fixedly installed on the outer surface of the alarm block.

[0013] Furthermore, the middle part of the second fixed block and the moving block are fixedly connected, the buffer block and the second fixed block are slidably connected, the second elastic rod and the second fixed block are slidably connected, the fourth spring is located between the inner walls of the buffer block and the second fixed block, the second slot and the locking ball engage, the second button and the second alarm are electrically connected, and pressing the second button controls the second alarm to sound an alarm, the fifth spring is located between the limit ring and the inner wall of the alarm block, there is a gap between the locking rod and the second button, and when the locking ball and the second inclined block come into contact, the locking rod squeezes the second button.

[0014] Furthermore, the heat dissipation assembly includes a heat sink frame, which is fixedly connected to the bottom wall of the lower yoke. A gear frame is slidably connected to the inner cavity of the heat sink frame, and a gear is rotatably connected to the middle part of the heat sink frame. Half of the gear is hollowed out. A motor is installed in the middle part of the heat sink frame, and the output end of the motor is sleeved with the gear. The gear and the gear frame mesh. Cooling fans are installed at both ends of the gear frame. Terminal blocks are slidably connected to the outer surface of the iron core column. The two ends of the winding are in close contact with the terminals. A duct is sleeved at the bottom of the terminal block, and the end of the duct away from the terminal block is located directly above the cooling fan. A ventilation hole is opened at the top of the terminal block, and an anti-deviation mechanism is installed in the middle part of the terminal block.

[0015] Furthermore, the anti-deviation mechanism includes a detection block, a sixth spring is provided in the inner cavity of the detection block, a contact block is slidably connected to the inner cavity of the detection block, a second slide rod is fixedly installed at both ends of the detection block, a seventh spring is sleeved on the outer surface of the second slide rod, a second pressing block is fixedly installed on the outer surface of the detection block, a third button is provided on the inner wall of the terminal block, a third alarm is fixedly installed on the inner wall of the terminal block, and a limit strip is fixedly installed on the inner wall of the terminal block.

[0016] Furthermore, the sixth spring is located between the contact block and the detection block, the two ends of the third button are chamfered, the two ends of the second pressing block are rounded, the third button and the third alarm are electrically connected, and pressing the third button controls the third alarm to sound an alarm, the second pressing block is located between the two third buttons, the second slide bar and the limit bar are slidably connected, the seventh spring is located between the detection block and the limit bar, and the detection block and the wiring terminal are slidably connected.

[0017] The technical solution provided in this application has at least the following technical effects or advantages:

[0018] 1. By employing a clamping assembly, this invention effectively solves the problem that existing reactors often use rigid clamps to fix the core and windings in the yoke, which lacks a buffering effect. The fixed connection cannot absorb or reduce vibration, and under long-term operation, the silicon steel sheets of the core undergo periodic magnetostrictive deformation, leading to continuous vibration of the core and windings. Long-term rigid vibration impact causes the core laminations and windings to be continuously subjected to alternating mechanical stress, easily causing loosening and misalignment of the core laminations, wear and cracking of the insulating varnish, resulting in inter-turn short circuits, accelerated insulation aging, and reduced reactor lifespan. This invention, through its clamping assembly, provides a dual buffering effect, effectively buffering the electromagnetic vibration generated during reactor operation, avoiding vibration transmission caused by rigid fixing, reducing loosening of the silicon steel sheets and winding displacement, reducing operating noise, and promptly issuing an alarm when the core and windings experience significant shaking, while also providing secondary buffering to improve the buffering effect. This reduces the continuous alternating mechanical stress on the core laminations and windings caused by vibration impact, preventing loosening and misalignment of the core laminations and wear and cracking of the insulating varnish, and extending the reactor's lifespan.

[0019] 2. By employing a heat dissipation component, the poor heat dissipation efficiency of existing reactors is effectively solved. Previously, fans were fixedly installed on the reactor, meaning they could only dissipate heat to specific areas, leading to significant temperature differences between different parts. Areas closer to the fan experienced better heat dissipation and lower temperatures, while areas further away suffered from insufficient heat dissipation and higher temperatures. Over long-term operation, these high-temperature areas could accelerate the aging of insulation materials, reducing the reactor's lifespan. Furthermore, the laminations in the core undergo thermal expansion and contraction, causing changes in the gaps between laminations, resulting in loosening and misalignment. This inability to compensate for deformation leads to additional mechanical stress, causing winding deformation and displacement, and localized warping of the core. Long-term operation reduces the structural stability of the equipment. This invention, through its heat dissipation component, provides uniform heat dissipation to the reactor, ensuring relatively uniform temperatures across multiple core columns and windings, preventing insulation aging. Accelerated airflow directs airflow between the core and coils, further improving heat dissipation. Additionally, it maintains relative stability between the core and windings despite temperature changes, allowing for monitoring and preventing displacement between them. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure in Embodiment 1 of this application;

[0021] Figure 2 This is a schematic diagram of the core post structure in Embodiment 1 of this application;

[0022] Figure 3 This is a schematic diagram of the clamping component structure in Embodiment 1 of this application;

[0023] Figure 4 This is a schematic diagram of the clamping plate structure in Embodiment 1 of this application;

[0024] Figure 5 This is a schematic diagram of the first alarm mechanism structure in Embodiment 1 of this application;

[0025] Figure 6 This is a schematic diagram of the connecting plate structure in Embodiment 1 of this application;

[0026] Figure 7 This is a schematic diagram of the clamping arm structure in Embodiment 1 of this application;

[0027] Figure 8 This is a schematic diagram of the second threaded rod structure in Embodiment 1 of this application;

[0028] Figure 9 This is a schematic diagram of the fixed block structure in Embodiment 1 of this application;

[0029] Figure 10 This is a schematic diagram of the alarm block structure in Embodiment 1 of this application;

[0030] Figure 11 This is a schematic diagram of the cross-sectional structure of the lower yoke in Embodiment 2 of this application;

[0031] Figure 12 This is a schematic diagram of the heat sink structure in Embodiment 2 of this application;

[0032] Figure 13 This is a partial structural diagram of the wiring terminal in Embodiment 2 of this application.

[0033] In the diagram: 1. Lower yoke; 2. Connecting rod; 3. Upper yoke; 4. Core column; 5. Winding; 6. Clamping assembly; 61. Clamping plate; 62. First threaded rod; 63. First buffer mechanism; 631. First buffer rod; 632. First spring; 633. First alarm mechanism; 6331. Connecting plate; 6332. First alarm; 6333. First button; 6334. First elastic rod; 6335. Second spring; 6336. Buffer plate; 6337. Connecting block; 6338. Cylinder; 6339. First fixing block; 63310. First slot; 63311. First inclined block; 63312. First pressing block; 64. Second buffer mechanism; 641. Moving block; 642. Clamping block; 643. First sliding rod; 644. Third spring; 645. Second threaded rod; 646. Clamping arm; 647. 6471. Second alarm mechanism; 6472. Second fixing block; 6473. Buffer block; 6474. Second elastic rod; 6475. Fourth spring; 6476. Second slot; 6477. Second inclined block; 6477. Alarm block; 6478. Locking rod; 6479. Locking ball; 64710. Limiting ring; 64711. Fifth spring; 64712. Second button; 64713. Second alarm; 7. Heat dissipation assembly; 71. Heat dissipation frame; 72. Gear frame; 73. Gear; 74. Motor; 75. Cooling fan; 76. Air duct; 77. Terminal block; 78. Anti-deviation mechanism; 781. Detection block; 782. Sixth spring; 783. Contact block; 784. Second slide rod; 785. Seventh spring; 786. Second compression block; 787. Third button; 788. Third alarm; 789. Limiting strip. Detailed Implementation

[0034] For reactors, rigid clamps are often used to fix the iron core and windings in the yoke, which does not have a buffering effect. This invention has a double buffering effect through the clamping component, which can effectively buffer the electromagnetic vibration generated during reactor operation, avoid the vibration transmission caused by rigid fixation, reduce the loosening of iron core silicon steel sheets and winding displacement, and reduce operating noise. For reactors with poor heat dissipation efficiency, this invention can dissipate heat evenly through the heat dissipation component, so that the temperature of multiple iron core columns and windings is relatively uniform, preventing the aging of insulation materials. When accelerating air flow, it can deliver airflow between the iron core and coil, thereby improving the heat dissipation effect.

[0035] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods. Example 1:

[0036] Please see Figure 1 and Figure 2 As shown, a single-phase two-column power electronic reactor includes a lower yoke 1, a connecting rod 2, an upper yoke 3, a core column 4, and a winding 5. The connecting rod 2 is fixedly installed on the outer surface of the lower yoke 1, and the upper yoke 3 is located at the end of the connecting rod 2 away from the lower yoke 1. A nut is threadedly connected to the outer surface of the connecting rod 2. The core column 4 is located between the lower yoke 1 and the upper yoke 3, and the winding 5 is wound around the outer surface of the core column 4. Clamping assemblies 6 are provided in the inner cavities of both the lower yoke 1 and the upper yoke 3. The lower yoke 1 has a heat dissipation assembly 7 installed in its inner cavity. The lower yoke 1 and the upper yoke 3 are fixedly connected by the connecting rod 2, so that the core column 4 and the winding 5 are pressed between the lower yoke 1 and the upper yoke 3. The clamping assembly 6 is used to flexibly fix the core column 4 between the lower yoke 1 and the upper yoke 3 and to buffer when the core column 4 vibrates. The heat dissipation assembly 7 is used to dissipate heat evenly from the core column 4 and the winding 5 and can issue an alarm when there is a misalignment between the core column 4 and the heat dissipation assembly 7.

[0037] Please see Figure 3 and Figure 4 As shown, the clamping assembly 6 includes a clamping plate 61, with a first threaded rod 62 rotatably connected to the inner cavity of the clamping plate 61. A first buffer mechanism 63 is provided at both ends of the clamping plate 61, and a second buffer mechanism 64 is provided on the outer surface of the clamping plate 61. The clamping plate 61 is located at both ends of the iron core column 4, and the clamping plate 61 is slidably connected to the inner walls of the lower yoke 1 and the upper yoke 3. By rotating the first threaded rod 62, the second buffer mechanism 64 is driven to slide on the clamping plate 61, so that the second buffer mechanism 64 clamps and limits the iron core column 4. The second buffer mechanism 64 can buffer the lateral movement of the iron core column 4, and the first buffer mechanism 63 can buffer the longitudinal movement of the iron core column 4, so that the iron core column 4 can be flexibly fixed between the lower yoke 1 and the upper yoke 3.

[0038] Please see Figure 3 , Figure 5 and Figure 6As shown, the first buffer mechanism 63 includes a first buffer rod 631, which is fixedly connected to a clamping plate 61. A first spring 632 is sleeved on the outer surface of the first buffer rod 631. First alarm mechanisms 633 are provided at both ends of the clamping plate 61. The upper first buffer rod 631 is slidably connected to the upper yoke 3, and the first spring 632 is located between the clamping plate 61 and the upper yoke 3. The lower first buffer rod 631 is slidably connected to the lower yoke 1, and the first spring 632 is located between the clamping plate 61 and the lower yoke 1. The first alarm mechanism 633 includes a connecting plate 6331, on the outer surface of which a first alarm 6332 is fixedly mounted. A first button 6333 is provided on the outer surface of the connecting plate 6331. A first elastic rod 6334 is slidably connected to the inner cavity of the connecting plate 6331. A second spring 6335 is sleeved on the outer surface of the first elastic rod 6334. A buffer plate 6336 is fixedly installed at one end of the first elastic rod 6334. A connecting block 6337 is fixedly installed on the outer surface of the buffer plate 6336. A retaining sleeve 6338 is rotatably connected to the end of the connecting block 6337 away from the buffer plate 6336. A first fixing block 6339 is fixedly installed on the inner walls of both the lower yoke 1 and the upper yoke 3. A first retaining groove 63310 is opened in the middle of the first fixing block 6339. A first inclined block 63311 is fixedly installed at both ends of the first fixing block 6339. A first pressing block 63312 is fixedly installed in the middle of the buffer plate 6336. 6331 is fixedly connected to the inner wall of the clamping plate 61. The first alarm 6332 and the first button 6333 are electrically connected, and pressing the first button 6333 controls the first button 6333 to emit an alarm. The two ends of the first button 6333 are rounded. The end of the first pressing block 63312 near the first button 6333 is chamfered. The second spring 6335 is located between the connecting plate 6331 and the buffer plate 6336. The clamping sleeve 6338 engages with the first clamping groove 63310. When there is no vibration or shaking, it is used to ensure the stability of the iron core column 4 on the clamping assembly 6. When the iron core column 4 and the winding 5 vibrate, it drives the second buffer mechanism 64 to shake. At this time, the clamping sleeve 6338 and the first clamping groove 63310 disengage. The cylinder 6338 moves on the first fixed block 6339, causing the first buffer rod 631 to slide within the cavities of the lower yoke 1 and the upper yoke 3 and compress the first spring 632. The elastic force of the first spring 632 buffers the swaying of the clamping plate 61. When a large longitudinal sway occurs, the clamping cylinder 6338 on the connecting block 6337 continues to move. When the clamping cylinder 6338 moves to the first inclined block 63311, the first inclined block 63311 compresses the clamping cylinder 6338, causing the buffer plate 6336 to move towards the connecting plate 6331. At this time, the first elastic rod 6334 slides within the cavity of the connecting plate 6331 and compresses the second spring 6335. The elastic force of the second spring 6335 provides secondary buffering for the vibration of the iron core column 4.Simultaneously, the movement of the buffer plate 6336 causes the first pressing block 63312 to press against the first button 6333, triggering the first alarm 6332 to sound an alarm. This alerts the staff that the core column 4 is experiencing significant longitudinal vibration between the lower yoke 1 and the connecting rod 2, requiring timely maintenance to prevent vibration transmission caused by rigid fixing, reduce loosening of the core silicon steel sheets and displacement of the winding 5, and lower operating noise.

[0039] Please see Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, the second buffer mechanism 64 includes a movable block 641, which is slidably connected to a clamping plate 61. The movable block 641 and a first threaded rod 62 are threaded together, with opposite thread directions at both ends of the first threaded rod 62. When the first threaded rod 62 rotates, the movable block 641 moves towards or away from each other. A clamping block 642 is slidably connected to the inner cavity of the movable block 641. A first sliding rod 643 is fixedly installed at both ends of the clamping block 642. A third spring 644 is sleeved on the outer surface of the first sliding rod 643. The first sliding rod 643 and the movable block 641 are slidably connected. The third spring 644 is located between the clamping block 642 and the movable block 641. A second threaded rod 645 is rotatably connected to the inner cavity of the clamping block 642. A clamping arm 646 is slidably connected to both ends of the clamping block 642. The clamping arm 646 and the second threaded rod 645 are connected by threads. The threads at both ends of the second threaded rod 645 are in opposite directions, and the clamping arms 646 on the second threaded rod 645 move towards or away from each other when the second threaded rod 645 rotates. A second alarm mechanism 647 is provided on the outer surface of the moving block 641. The end of the clamping arm 646 away from the clamping block 642 is in close contact with the outer surface of the iron core column 4. The second alarm mechanism 647 includes a second fixed block 6471. Buffer blocks 6472 are symmetrically distributed in the inner cavity of the second fixed block 6471. A second elastic rod 6473 is fixedly installed on one end of the buffer block 6472. A fourth spring 6474 is sleeved on the outer surface of the second elastic rod 6473. An opening is provided at the end of the buffer block 6472 away from the second elastic rod 6473. The device has a second slot 6475, a second inclined block 6476 fixedly mounted on the outer surface of the buffer block 6472, an alarm block 6477 fixedly mounted in the middle of the clamping block 642, a locking rod 6478 slidably connected to the inner cavity of the alarm block 6477, a locking ball 6479 movably connected to one end of the locking rod 6478, a limit ring 64710 fixedly mounted on the outer surface of the locking rod 6478, a fifth spring 64711 sleeved on the outer surface of the locking rod 6478, a second button 64712 provided on the inner wall of the alarm block 6477, a second alarm 64713 fixedly mounted on the outer surface of the alarm block 6477, a fixed connection between the middle of the second fixed block 6471 and the moving block 641, and a slidable connection between the buffer block 6472 and the second fixed block 6471. The second elastic rod 6473 is slidably connected to the second fixing block 6471. The fourth spring 6474 is located between the inner walls of the buffer block 6472 and the second fixing block 6471. The second slot 6475 and the locking ball 6479 are engaged to ensure the stability of the iron core column 4 on the clamping assembly 6 when there is no vibration or shaking. The second button 64712 is electrically connected to the second alarm 64713, and pressing the second button 64712 controls the second alarm 64713 to sound an alarm. The fifth spring 64711 is located between the limiting ring 64710 and the inner wall of the alarm block 6477. There is a gap between the locking rod 6478 and the second button 64712.When the ball 6479 contacts the second inclined block 6476, the lever 6478 presses against the second button 64712. When the core column 4 vibrates laterally on the clamping plate 61, it presses against the clamping arm 646, causing the clamping block 642 to slide within the inner cavity of the moving block 641. The ball 6479 and the second slot 6475 disengage and slide on the buffer block 6472. The sliding of the clamping block 642 causes the first sliding rod 643 to slide within the inner cavity of the moving block 641 and press against the third spring 644. The elasticity of the third spring 644 is used to buffer the swaying of the clamping arm 646. The second threaded rod 645 can be rotated according to the width of the core column 4, coordinating with the rotation of the first threaded rod 62 to achieve clamping. Arm 646 can tightly clamp the outer surface of the iron core column 4. When a large lateral vibration occurs, the clamping arm 646 will shift significantly, causing the clamping block 642 to displace significantly within the moving block 641 and moving the alarm block 6477. The movement of the alarm block 6477 causes the locking ball 6479 and the second inclined block 6476 to compress each other, and causes the buffer block 6472 to slide within the second fixed block 6471. At this time, the second elastic rod 6473 slides within the second fixed block 6471 and compresses the fourth spring 6474. The elastic force of the fourth spring 6474 provides secondary buffering for the vibration of the iron core column 4. Simultaneously, the second inclined block 6476 compresses the locking ball 6479, causing... When the locking lever 6478 slides within the inner cavity of the alarm block 6477, the limiting ring 64710 compresses the fifth spring 64711. Simultaneously, the locking lever 6478 compresses the second button 64712, causing the second alarm 64713 to sound, reminding personnel that equipment maintenance is required. Therefore, the cooperation of the first buffer mechanism 63 and the second buffer mechanism 64 provides buffering effects in both the lateral and longitudinal directions, effectively buffering the electromagnetic vibrations generated during reactor operation, avoiding vibration transmission caused by rigid fixing, reducing loosening of the iron core silicon steel sheets and displacement of the winding 5, reducing operating noise, and promptly issuing an alarm and performing secondary buffering when the iron core and winding 5 experience significant shaking, thus improving the buffering effect. This reduces the continuous alternating mechanical stress on the core laminations and winding 5 caused by vibration and impact, preventing loosening and misalignment of the core laminations, wear and cracking of the insulating varnish, and extending the service life of the reactor. The flexible fixing effectively absorbs electromagnetic vibrations generated during reactor operation, weakening the transmission of vibration from the core column 4 to the downward yoke 1, upper yoke 3, and cabinet, reducing core lamination loosening and insulation friction loss of winding 5, thus extending the service life of the insulation and the entire unit. Simultaneously, it avoids stress concentration caused by rigid fixing, preventing displacement and deformation of winding 5. Furthermore, the clamping and locking mechanism ensures stable positioning, preventing abnormal component shaking, reducing operating noise, minimizing fastener loosening, improving overall mechanical stability and operational reliability, and reducing subsequent maintenance frequency and costs. Example 2:

[0040] Please see Figure 11 and Figure 12 As shown, the heat dissipation assembly 7 includes a heat dissipation frame 71, which is fixedly connected to the bottom wall of the lower yoke 1. A gear frame 72 is slidably connected to the inner cavity of the heat dissipation frame 71. A gear 73 is rotatably connected to the middle part of the heat dissipation frame 71. Half of the gear 73 is hollowed out. A motor 74 is installed in the middle part of the heat dissipation frame 71. The output end of the motor 74 is sleeved with the gear 73. The gear 73 meshes with the gear frame 72. Cooling fans 75 are installed at both ends of the gear frame 72. A terminal block 77 is slidably connected to the outer surface of the iron core column 4. The two ends of the winding 5 are in close contact with the terminal block 77. A duct 76 is sleeved at the bottom end of the terminal block 77, and the end of the duct 76 away from the terminal block 77 is located directly above the cooling fan 75. A ventilation hole is opened at the top end of the terminal block 77. To facilitate airflow between the core column 4 and the winding 5 and reduce equipment temperature, an anti-deviation mechanism 78 is provided in the middle of the terminal 77. The operation of the motor 74 drives the gear 73 to rotate. Since half of the gear 73 is hollowed out, the gear 73 can drive the gear frame 72 to move back and forth in the inner cavity of the heat sink 71 during rotation, so that the cooling fan 75 can move back and forth in the inner cavity of the lower yoke 1. When accelerating the airflow, the airflow can be delivered to the outer surface of the core column 4 and the winding 5. The air duct 76 and the terminal 77 can also circulate the air to the interior of the core column 4 and the winding 5, thereby improving the heat dissipation effect. The anti-deviation mechanism 78 is used to monitor whether the core column 4 and the winding 5 are misaligned and to issue an alarm when misalignment occurs.

[0041] Please see Figure 11 and Figure 13As shown, the anti-deviation mechanism 78 includes a detection block 781, a sixth spring 782 disposed within the inner cavity of the detection block 781, a contact block 783 slidably connected to the inner cavity of the detection block 781, second slide rods 784 fixedly mounted at both ends of the detection block 781, a seventh spring 785 sleeved on the outer surface of the second slide rods 784, a second pressing block 786 fixedly mounted on the outer surface of the detection block 781, a third button 787 disposed on the inner wall of the terminal block 77, a third alarm 788 fixedly mounted on the inner wall of the terminal block 77, and the terminal block... A limit strip 789 is fixedly installed on the inner wall of the sub-block 77. The sixth spring 782 is located between the contact block 783 and the detection block 781. The two ends of the third button 787 are chamfered, and the two ends of the second pressing block 786 are rounded. The third button 787 and the third alarm 788 are electrically connected, and pressing the third button 787 controls the third alarm 788 to sound an alarm. The second pressing block 786 is located between the two third buttons 787. The second slide rod 784 is slidably connected to the limit strip 789. The seventh spring 785 is located on the detection block. Between 781 and the limit bar 789, the detection block 781 and the terminal 77 are slidably connected. The elastic force of the sixth spring 782 keeps the contact block 783 and the iron core column 4 in tight contact. The elastic force of the sixth spring 782 can effectively compensate for the expansion and contraction difference between the iron core column 4 and the winding 5. Its elastic structure can expand and contract with temperature changes to maintain a tight connection between the iron core column 4 and the winding 5, preventing the iron core column 4 and the winding 5 from becoming loose or having poor contact, and ensuring a stable and reliable electrical connection. When the iron core column 4 and the winding 5 are offset, the movement of the iron core column 4 drives the contact block 783 to make contact 783 and the winding 5 ... When block 783 moves, the movement of contact block 783 causes detection block 781 to slide within the cavity of limit bar 789. At this time, second slide bar 784 slides within the cavity of limit bar 789 and compresses seventh spring 785, causing second compression block 786 to compress third button 787 and trigger third alarm 788 to sound an alarm. The alarm sounds of first alarm 6332, second alarm 64713 and third alarm 788 are set differently to facilitate problem differentiation and troubleshooting, and to enable staff to take timely measures.

[0042] In summary, the lower yoke 1 and upper yoke 3 are fixedly connected by the connecting rod 2, pressing the core column 4 and winding 5 between the lower yoke 1 and upper yoke 3. The clamping assembly 6 is used to flexibly fix the core column 4 between the lower yoke 1 and upper yoke 3 and to buffer when the core column 4 vibrates. The heat dissipation assembly 7 is used to uniformly dissipate heat from the core column 4 and winding 5 and can issue an alarm when there is a misalignment between the core column 4 and the heat dissipation assembly 7. By rotating the first threaded rod 62, the second buffering mechanism 64 is driven to slide on the clamping plate 61, so that the second buffering mechanism 64 clamps and limits the core column 4. The second buffering mechanism 64 can clamp and limit the core column 4. The first buffer mechanism 63 can buffer the longitudinal direction of the iron core column 4, so that the iron core column 4 can be flexibly fixed between the lower iron yoke 1 and the upper iron yoke 3. The operation of the motor 74 drives the gear 73 to rotate. Since half of the gear 73 is hollowed out, the gear 73 can drive the gear frame 72 to move back and forth in the inner cavity of the heat sink 71 during rotation, so that the heat sink 75 can move back and forth in the inner cavity of the lower iron yoke 1. When accelerating the air flow, the airflow can be delivered to the outer surface of the iron core column 4 and the winding 5. The air duct 76 and the terminal 77 can also allow the airflow to the interior of the iron core column 4 and the winding 5, so that the heat dissipation effect is better.

[0043] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0044] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A power electronic single-phase two-column reactor, comprising a lower yoke (1), a connecting rod (2), an upper yoke (3), a core column (4), and a winding (5), wherein the connecting rod (2) is fixedly mounted on the outer surface of the lower yoke (1), and the upper yoke (3) is provided at the end of the connecting rod (2) away from the lower yoke (1), and a nut is threadedly connected to the outer surface of the connecting rod (2), characterized in that, A core column (4) is provided between the lower yoke (1) and the upper yoke (3). A winding (5) is wound around the outer surface of the core column (4). A clamping assembly (6) is provided in the inner cavity of both the lower yoke (1) and the upper yoke (3). A heat dissipation assembly (7) is provided in the inner cavity of the lower yoke (1). The clamping assembly (6) includes a clamping plate (61), the inner cavity of the clamping plate (61) is rotatably connected to a first threaded rod (62), the two ends of the clamping plate (61) are provided with a first buffer mechanism (63), the outer surface of the clamping plate (61) is provided with a second buffer mechanism (64), the clamping plate (61) is located at both ends of the iron core column (4), and the clamping plate (61) is slidably connected to the inner walls of the lower yoke (1) and the upper yoke (3).

2. The power electronic single-phase two-column reactor as described in claim 1, characterized in that, The first buffer mechanism (63) includes a first buffer rod (631), the first buffer rod (631) and the clamping plate (61) are fixedly connected, the outer surface of the first buffer rod (631) is sleeved with a first spring (632), and the clamping plate (61) is provided with a first alarm mechanism (633) at both ends. The first buffer rod (631) at the upper end is slidably connected to the upper yoke (3), and the first spring (632) is located between the clamping plate (61) and the upper yoke (3). The first buffer rod (631) at the lower end is slidably connected to the lower yoke (1), and the first spring (632) is located between the clamping plate (61) and the lower yoke (1).

3. A power electronic single-phase two-column reactor as described in claim 2, characterized in that, The first alarm mechanism (633) includes a connecting plate (6331), on which a first alarm (6332) is fixedly mounted. A first button (6333) is provided on the outer surface of the connecting plate (6331). A first elastic rod (6334) is slidably connected to the inner cavity of the connecting plate (6331). A second spring (6335) is sleeved on the outer surface of the first elastic rod (6334). A buffer plate (6336) is fixedly mounted on one end of the first elastic rod (6334). The outer surface of the buffer plate (6336)... A connecting block (6337) is fixedly installed on the surface. A retaining sleeve (6338) is rotatably connected to the end of the connecting block (6337) away from the buffer plate (6336). A first fixing block (6339) is fixedly installed on the inner wall of both the lower yoke (1) and the upper yoke (3). A first retaining groove (63310) is opened in the middle part of the first fixing block (6339). A first inclined block (63311) is fixedly installed at both ends of the first fixing block (6339). A first pressing block (63312) is fixedly installed in the middle part of the buffer plate (6336).

4. A power electronic single-phase two-column reactor as described in claim 3, characterized in that, The inner walls of the connecting plate (6331) and the clamping plate (61) are fixedly connected. The first alarm (6332) and the first button (6333) are electrically connected. Pressing the first button (6333) controls the first button (6333) to emit an alarm. The two ends of the first button (6333) are rounded. The end of the first pressing block (63312) near the first button (6333) is chamfered. The second spring (6335) is located between the connecting plate (6331) and the buffer plate (6336). The clamping cylinder (6338) and the first clamping groove (63310) are engaged.

5. A power electronic single-phase two-column reactor as described in claim 1, characterized in that, The second buffer mechanism (64) includes a movable block (641), which is slidably connected to a clamping plate (61). The movable block (641) and a first threaded rod (62) are connected by threads. The threads at both ends of the first threaded rod (62) are opposite in direction, and the movable block (641) moves towards or away from each other when the first threaded rod (62) rotates. A clamping block (642) is slidably connected to the inner cavity of the movable block (641). A first sliding rod (643) is fixedly installed at both ends of the clamping block (642). A third spring (644) is sleeved on the outer surface of the first sliding rod (643). The first sliding rod (643) and the movable block (641) are slidably connected. 44) Located between the clamping block (642) and the moving block (641), the inner cavity of the clamping block (642) is rotatably connected to a second threaded rod (645), and the two ends of the clamping block (642) are slidably connected to clamping arms (646). The clamping arms (646) and the second threaded rod (645) are connected by threads. The two ends of the second threaded rod (645) have opposite thread directions, and when the second threaded rod (645) rotates, the clamping arms (646) on the second threaded rod (645) move towards or away from each other. The outer surface of the moving block (641) is provided with a second alarm mechanism (647), and the end of the clamping arm (646) away from the clamping block (642) is in close contact with the outer surface of the iron core column (4).

6. A power electronic single-phase two-column reactor as described in claim 5, characterized in that, The second alarm mechanism (647) includes a second fixing block (6471), and buffer blocks (6472) are symmetrically distributed in the inner cavity of the second fixing block (6471). A second elastic rod (6473) is fixedly installed at one end of the buffer block (6472), and a fourth spring (6474) is sleeved on the outer surface of the second elastic rod (6473). A second slot (6475) is opened at the end of the buffer block (6472) away from the second elastic rod (6473), and a second inclined block (6476) is fixedly installed on the outer surface of the buffer block (6472). The clamping block (6474) is... An alarm block (6477) is fixedly installed in the middle part of 42). A locking rod (6478) is slidably connected to the inner cavity of the alarm block (6477). A locking ball (6479) is movably connected to one end of the locking rod (6478). A limit ring (64710) is fixedly installed on the outer surface of the locking rod (6478). A fifth spring (64711) is sleeved on the outer surface of the locking rod (6478). A second button (64712) is provided on the inner wall of the alarm block (6477). A second alarm (64713) is fixedly installed on the outer surface of the alarm block (6477).

7. A power electronic single-phase two-column reactor as described in claim 6, characterized in that, The second fixed block (6471) and the moving block (641) are fixedly connected at the middle part; the buffer block (6472) and the second fixed block (6471) are slidably connected; the second elastic rod (6473) and the second fixed block (6471) are slidably connected; the fourth spring (6474) is located between the inner walls of the buffer block (6472) and the second fixed block (6471); the second slot (6475) and the locking ball (6479) are engaged; and the second button (64712) is engaged. The second alarm (64713) is electrically connected, and pressing the second button (64712) controls the second alarm (64713) to sound an alarm. The fifth spring (64711) is located between the limiting ring (64710) and the inner wall of the alarm block (6477). There is a gap between the lever (6478) and the second button (64712). When the ball (6479) and the second inclined block (6476) come into contact, the lever (6478) squeezes the second button (64712).

8. A power electronic single-phase two-column reactor as described in claim 1, characterized in that, The heat dissipation assembly (7) includes a heat dissipation frame (71), which is fixedly connected to the bottom wall of the lower yoke (1). A gear frame (72) is slidably connected to the inner cavity of the heat dissipation frame (71). A gear (73) is rotatably connected to the middle part of the heat dissipation frame (71). Half of the gear (73) is hollowed out. A motor (74) is provided in the middle part of the heat dissipation frame (71). The output end of the motor (74) is sleeved with the gear (73). The gear (73) meshes with the gear frame (72). (72) has cooling fans (75) at both ends. The outer surface of the iron core column (4) is slidably connected to the terminal (77). The two ends of the winding (5) are in close contact with the terminal (77). The bottom end of the terminal (77) is fitted with a duct (76), and the end of the duct (76) away from the terminal (77) is located directly above the cooling fan (75). The top end of the terminal (77) is provided with a ventilation hole. The middle part of the terminal (77) is provided with an anti-offset mechanism (78).

9. A power electronic single-phase two-column reactor as described in claim 8, characterized in that, The anti-deviation mechanism (78) includes a detection block (781), a sixth spring (782) is provided in the inner cavity of the detection block (781), a contact block (783) is slidably connected to the inner cavity of the detection block (781), a second slide rod (784) is fixedly installed at both ends of the detection block (781), a seventh spring (785) is sleeved on the outer surface of the second slide rod (784), a second pressing block (786) is fixedly installed on the outer surface of the detection block (781), a third button (787) is provided on the inner wall of the terminal (77), a third alarm (788) is fixedly installed on the inner wall of the terminal (77), and a limit strip (789) is fixedly installed on the inner wall of the terminal (77).

10. A power electronic single-phase two-column reactor as described in claim 9, characterized in that, The sixth spring (782) is located between the contact block (783) and the detection block (781). The two ends of the third button (787) are chamfered, and the two ends of the second pressing block (786) are rounded. The third button (787) and the third alarm (788) are electrically connected, and pressing the third button (787) controls the third alarm (788) to sound an alarm. The second pressing block (786) is located between the two third buttons (787). The second slide bar (784) and the limit bar (789) are slidably connected. The seventh spring (785) is located between the detection block (781) and the limit bar (789). The detection block (781) and the terminal block (77) are slidably connected.

Images