A single-phase adjustable reactor structure

Abstract

The present application relates to a structure of a single-phase adjustable reactor, belonging to the technical field of reactors. The structure of the single-phase adjustable reactor includes a body, a core column, and a side yoke. The core column includes an upper iron core and a lower iron core. It further includes a driving mechanism, which includes: a lead screw rotatably arranged on the body and threadedly connected to the upper iron core and the lower iron core through two connecting components. The rotation of the lead screw is used to drive the upper iron core and the lower iron core to approach or move away from each other; a driving member for driving the rotation of the lead screw; a guiding component arranged on the body and slidably connected to the connecting components and used to guide the movement of the upper iron core and the lower iron core. In the present application, the driving member drives the upper iron core and the lower iron core to approach or move away from each other, so that the impedance of the upper and lower coils is consistent. At the same time, the guiding component guides the movement of the upper iron core and the lower iron core, making the movement accuracy of the upper iron core and the lower iron core higher, and reducing the probability of loss and vibration noise of the reactor.

Description

Technical Field

[0001] This application relates to the technical field of reactors, and in particular to a structure of a single-phase adjustable reactor. Background Art

[0002] A reactor, also known as an inductor, is widely used in circuits. Due to the effect of electromagnetic induction in the circuit, there is a certain inductance, which can play a role in preventing current changes.

[0003] A reactor usually consists of a body, an inductor coil, a core column, etc. The traditional core column includes a moving iron core at the upper part and a fixed iron core at the lower part. The air gap is adjusted by controlling the up and down movement of the moving iron core to adjust the inductance.

[0004] In the above adjustment process, only the moving iron core moves, and the fixed iron core does not move. The reactor coil is a parallel structure up and down, resulting in different impedances of the upper and lower coils, thus forming a circulating current, greatly increasing the probability of loss and vibration noise. Summary of the Invention

[0005] In order to reduce the loss of the reactor and the probability of vibration noise, this application provides a structure of a single-phase adjustable reactor.

[0006] A structure of a single-phase adjustable reactor provided by this application adopts the following technical solutions:

[0007] A structure of a single-phase adjustable reactor includes a body, a core column arranged on the body, and side yokes located around the core column. The core column includes an upper iron core and a lower iron core arranged at a vertical interval. It also includes a driving mechanism arranged on the body. The driving mechanism includes:

[0008] A lead screw, rotatably arranged on the body;

[0009] Two connecting components, respectively detachably arranged on the upper iron core and the lower iron core and both threadedly connected to the lead screw. The rotation of the lead screw is used to drive the upper iron core and the lower iron core to approach or move away from each other;

[0010] A driving member, used to drive the lead screw to rotate;

[0011] A guiding component, arranged on the body and slidably connected to the connecting component and used to guide the movement of the upper iron core and the lower iron core.

[0012] By adopting the above technical solutions, the core column is located at the center, and multiple side yokes are evenly distributed around the core column and jointly form a closed magnetic circuit with the core column, so that more magnetic fluxes circulate inside the iron core, reducing the probability of magnetic leakage phenomenon, and thus reducing the loss of the reactor.

[0013] When adjustment is needed, the driving member drives the lead screw to rotate. The rotation of the lead screw drives the upper iron core and the lower iron core to approach or move away from each other, so that the impedances of the upper and lower coils are the same. At the same time, the guiding assembly guides the upper iron core and the lower iron core during movement, so that the upper iron core and the lower iron core can only move vertically and cannot rotate, making the movement process of the two more accurate, reducing the probability of wear of the lead screw caused by the skew of the two, further reducing the probability of inconsistent impedances of the upper and lower coils, and reducing the losses and the probability of vibration noise of the reactor.

[0014] The connecting assembly is detachably arranged on the upper iron core and the lower iron core. The upper iron core and the lower iron core need to be made of special materials to achieve the function of the reactor. The connecting assembly needs to be convenient for threaded connection with the lead screw. Therefore, it can better meet the needs of the two, and can also realize the installation and replacement of multiple structures of the reactor, improving the service life of the reactor.

[0015] Optionally, both the upper iron core and the lower iron core are of a radially cast integral structure, and two mounting holes and a communication hole are coaxially formed during casting. The two mounting holes are located at both ends of the upper iron core or the lower iron core, and the diameter is larger than that of the communication hole and they are communicated with each other through the communication hole. The connecting assembly passes through the communication hole and presses against the two mounting holes for positioning and can be removed from the mounting holes.

[0016] By adopting the above technical solution, the core column is of a radially cast integral structure, so that when the air gap of the reactor is adjusted, the leakage magnetic flux of the coil will not cause eddy current heating of the steel structure; the radially cast structure means that the magnetic flux distribution of the core column is more uniform, thereby reducing the local magnetic field intensity and reducing the generation of eddy currents. The integral casting structure improves the stability of the core column. This design ensures that during the air gap adjustment operation of the reactor, even if the leakage magnetic flux of the coil increases, the eddy current heating of the steel structure can be effectively controlled, thereby reducing the losses of the reactor and improving the operation safety of the reactor.

[0017] By coaxially integrally forming two mounting holes and a communication hole, and then the connecting assembly passes through the communication hole and presses against the two mounting holes, the connection of the connecting assembly with the upper iron core or the lower iron core can be realized. Then, the lead screw is connected with the connecting assembly to realize the connection of the upper iron core and the lower iron core with the lead screw. Therefore, the convenience during the production process of the upper iron core and the lower iron core is improved, thereby further improving the concentricity and the accuracy of other parameters of the structures of the upper iron core and the lower iron core, making the structures of the two more stable. At the same time, the accuracy of the position after the driving mechanism is connected with the upper iron core and the lower iron core is improved, and the accuracy during the adjustment process is improved, thereby reducing the losses of the reactor and improving the operation safety of the reactor.

[0018] Furthermore, the connecting component needs to be threadedly connected to the lead screw and slidably connected to the guiding component. Therefore, the connecting component needs to be designed with materials and parameters suitable for threaded connection. When the connecting component is connected to the upper iron core and the lower iron core, it presses against the mounting holes for connection. This connection method has no special requirements for materials. Therefore, the connecting component can better adapt to the threaded connection with the lead screw, improving the accuracy after the upper iron core and the lower iron core are connected to the lead screw, thus greatly enhancing the stability during the adjustment process, reducing the probability of magnetic leakage, thereby reducing the loss of the reactor, and improving the operating safety of the reactor.

[0019] Optionally, the connecting component includes:

[0020] The first connecting column and the second connecting column are both snap-fitted and installed on the communication hole, respectively pressing against the two mounting holes for positioning and slidably connected to the connecting component. The two first connecting columns are respectively located at one end of the upper iron core and the lower iron core close to each other and are located inside the mounting holes. The lead screw is threadedly connected to the two first connecting columns and slidably penetrates through the two second connecting columns;

[0021] A plurality of double-headed screws are arranged at intervals, threadedly connected to the first connecting column and slidably penetrate through the second connecting column. A positioning nut that presses against the second connecting column for positioning is threadedly connected to each double-headed screw.

[0022] By adopting the above technical solution, a plurality of double-headed screws are threadedly connected to the first connecting column, the first connecting column is snap-fitted and installed on the communication hole, a plurality of double-headed screws are slidably penetrated through the second connecting column, so that the second connecting column is snap-fitted and installed on the other end of the communication hole, and the positioning nut is threadedly connected to the double-headed screw, so that the positioning nut presses against the second connecting column, thereby enabling the first connecting column and the second connecting column to respectively press against the two mounting holes for positioning, thereby fixedly installing the connecting component on the upper iron core and the lower iron core, and enabling the two first connecting columns to be located at one end of the upper iron core and the lower iron core close to each other. Then, the lead screw is threadedly connected to the two first connecting columns and passes through the second connecting column, and the guiding component is slidably connected to the first connecting column and the second connecting column, thereby realizing the connection between the lead screw and the upper iron core and the lower iron core, and the guiding component is slidably connected to the first connecting column and the second connecting column.

[0023] The two positioning nuts are located at one end of the upper iron core and the lower iron core away from each other, and the two first connecting columns are located inside the mounting holes. Therefore, when the upper iron core and the lower iron core approach each other, the positioning nuts will not interfere with their movement, enabling them to approach each other infinitely, and even enabling them to be in contact with each other, thereby improving the adjustment effect while realizing the connection, reducing the probability of magnetic leakage, thereby reducing the loss of the reactor, and improving the operating safety of the reactor.

[0024] Optionally, the guiding component includes:

[0025] Two mounting pipes are vertically and spacedly arranged on the machine body, and the lead screw coaxially passes through the two mounting pipes;

[0026] Two guide columns are spacedly arranged on the two mounting pipes and slidably penetrate through the two connecting columns I and the two connecting columns II for guiding.

[0027] By adopting the above technical solution, the two guide columns slidably penetrate through the two connecting columns I and the two connecting columns II for guiding, so as to guide the upper iron core and the lower iron core during the moving process. Moreover, the two guide columns are arranged at intervals, so that the guide holes for the guide columns to pass through on the connecting columns I and II are also evenly distributed, thereby being able to achieve guiding and simultaneously meeting the stability requirements of the upper iron core and the lower iron core, reducing the probability of magnetic leakage, reducing the loss of the reactor, and improving the operating safety of the reactor.

[0028] Optionally, the lead screw and the connecting assembly are both made of non-magnetic steel material, and a groove body for destroying the eddy current path is coaxially formed inside the lead screw.

[0029] By adopting the above technical solution, the lead screw and the connecting assembly are both non-magnetic steel. Non-magnetic steel has a low magnetic permeability and will not be strongly magnetized by the magnetic field, thereby reducing the generation of eddy currents. The opening of the groove body further reduces the eddy current loss. The groove body destroys the continuous path of the eddy current, so that even if a small amount of eddy currents are generated, they will not be able to form a closed loop because the path is cut off, thereby significantly reducing the eddy current loss, reducing the probability of magnetic leakage, reducing the loss of the reactor, and improving the operating safety of the reactor.

[0030] Optionally, two support assemblies threadedly connected to the lead screw and slidably connected to the guide assembly are provided. The two connecting columns II are located between the two support assemblies and are respectively connected to the two support assemblies. The two support assemblies move simultaneously with the two connecting columns II and maintain an upward acting force on the upper iron core and the lower iron core under the action of elastic force.

[0031] By adopting the above technical solution, since one of the two connecting columns is located at one end where the upper iron core and the lower iron core are close to each other, and at the same time, in order to make the second connecting column and the first connecting column press against the two mounting holes, the lead screw can only be slidably connected to the second connecting column, that is, the lead screw will not interfere with the connection between the first connecting column and the second connecting column and the two mounting holes. Therefore, the gravity of the upper iron core and the lower iron core will be concentrated at the connection between the lead screw and the two first connecting columns, making the connection between the two prone to wear and even damage, thereby reducing the accuracy during the adjustment process, increasing the loss of the reactor, and reducing the safety of the reactor operation. Moreover, the two first connecting columns are located at one end where the upper iron core and the lower iron core are close to each other, and the lead screw does not contact the two second connecting columns, so the support for the upper iron core and the lower iron core is only concentrated at one end of the two, thereby reducing the support effect on the two and reducing the stability during their operation.

[0032] The two support components cooperate to push the upper iron core and the lower iron core upward under the action of elastic force, thereby reducing the pressure on the lead screw and the connection between the lead screw and the two first connecting columns, reducing the probability of wear and even damage at the connection, thereby improving the accuracy during the adjustment process, reducing the loss of the reactor, and increasing the safety of the reactor operation.

[0033] When the lead screw rotates and under the action of the guiding component, the two support components and the second connecting column move simultaneously, enabling support to be achieved regardless of the position of the upper iron core and the lower iron core and the supporting force remaining unchanged, further reducing the loss of the reactor and increasing the safety of the reactor operation.

[0034] Since the structure connected to the upper iron core and the lower iron core is much heavier than the mass of the support components, the inertia formed by the former is greater than that of the latter at the end of the movement. Therefore, through the action of elastic force, the movement of the upper iron core and the lower iron core can be buffered, reducing the impact force on the connection between the lead screw and the first connecting column under the action of inertia, reducing the probability of wear and even damage at the connection, thereby improving the accuracy during the adjustment process, reducing the loss of the reactor, and increasing the safety of the reactor operation.

[0035] At the same time, the connection between the first connecting column and the lead screw is located at one end of the upper iron core, and the support component can support the end of the upper iron core far from the first connecting column, so that both ends of the upper iron core and both ends of the lower iron core can be supported, improving the stability of the upper iron core and the lower iron core during movement. Therefore, the loss of the reactor is further reduced, and the safety of the reactor operation is increased.

[0036] Optionally, the support component includes:

[0037] A support disk, which is slidably connected to the guiding component and threadedly connected to the lead screw;

[0038] A fixing ring, which is detachably arranged on the second connecting column;

[0039] A spring is sleeved on the lead screw and its two ends are connected to the fixed ring and the support disk; one of the springs generates an upward pulling force on the upper iron core, and the other spring generates an upward pushing force on the lower iron core.

[0040] By adopting the above technical solution, the spring is used to apply an upward pulling force on the upper iron core, and the other spring is used to apply an upward pushing force on the lower iron core to overcome the gravity of the two; at the same time, the lead screw rotates to drive the upper iron core and the connecting column two to move, and the guide rod makes the support disk unable to rotate, that is, the fixed ring, the spring and the support disk move simultaneously, so as to maintain the upward acting force on the upper iron core and the lower iron core. At the same time, the spring can also buffer the inertia of the upper iron core and the lower iron core. The above structure is simple and stable, thus reducing the loss of the reactor and improving the safety of the reactor operation.

[0041] The support disk is connected to the connecting column two through the guide rod and the fixed ring, so that the end of the upper iron core far from the connecting column one can be supported by the support disk, so that both ends of the upper iron core and the lower iron core can be supported. Moreover, the spring is sleeved on the lead screw, and the gap between the springs is small, so that impurities and moisture can be blocked from contacting the lead screw and damaging the lead screw. Therefore, the loss of the reactor is further reduced and the safety of the reactor operation is improved.

[0042] By adopting the above technical solution, the supporting force of the spring on the lower iron core is less than or equal to the gravity of the lower iron core. Protective sleeves respectively connected to the fixed ring and the frame are arranged on the opposite side walls of the support disk at the connecting column one, and the lead screw passes through the protective sleeve for protection.

[0043] By adopting the above technical solution, the spring can support the lower iron core as much as possible, thus reducing the probability of damage to the thread on the lead screw caused by the gravity of the lower iron core; since the lower iron core generates pressure on the spring, the spring is compressed and the gap is small, so that dust from the outside can be blocked; when the upper iron core generates a downward pulling force on the spring, the spring is stretched and the gap increases, and at this time, dust is easy to move onto the lead screw. Therefore, through the design of the protective sleeve, dust can be blocked from moving onto the lead screw, thus reducing the adverse effect of dust on the movement of the lead screw, improving the accuracy in the adjustment process, and further improving the service life of the reactor.

[0044] Optionally, through holes for a plurality of double-headed screws and guide components to pass through are formed in the fixed ring, and the positioning nut pushes the fixed ring to press against the connecting column two for positioning.

[0045] By adopting the above technical solution, a plurality of double-headed screws and a plurality of guide rods are passed through a plurality of through holes, and then positioning nuts are threadedly connected to the double-headed screws, so that the positioning nuts are pressed against the fixing ring for positioning, thereby realizing the fixed installation of the fixing ring on the second connecting column, improving the convenience during the installation process, and through the fixing ring, the plurality of double-headed screws can also be connected into one body when connected, thereby improving the stability after connection, reducing the loss of the reactor, and improving the safety of the reactor operation.

[0046] Optionally, fixing components for fixing the inductor coil are arranged between a plurality of yokes and the core column on the body, and the fixing components include:

[0047] The first fixing strip is arranged on the body;

[0048] The second fixing strip is detachably arranged on the first fixing strip, and a plurality of fixing holes are vertically and spaced apart on the side walls that mutually abut against the first fixing strip. Two fixing holes on the first fixing strip and the second fixing strip are used in cooperation to position the inductor coil.

[0049] By adopting the above technical solution, the inductor coil is wound around a plurality of first fixing strips, and the inductor coil is located on the fixing holes of the first fixing strip, and then the second fixing strip is fixedly installed on the first fixing strip. Therefore, the first fixing strip and the second fixing strip limit the inductor coil in the fixing holes, thereby realizing the fixing of the inductor coil through the cooperation of a plurality of fixing holes on the plurality of first fixing strips and the plurality of second fixing strips, improving the stability of the inductor coil, reducing the loss of the reactor, and improving the safety of the reactor operation.

[0050] Optionally, both ends of the first fixing strip are inserted and positioned on the body through insertion blocks, and the second fixing strip is fixedly connected to the first fixing strip by screws.

[0051] By adopting the above technical solution, both ends of the first fixing strip are inserted and installed on the body for positioning, and the second fixing strip is fixedly installed on the first fixing strip through fixing screws, thereby realizing the fixing of the inductor coil.

[0052] In summary, the present application includes at least one of the following beneficial technical effects:

[0053] 1. With the core column located at the center, a plurality of yokes are evenly distributed around the core column and jointly form a closed magnetic circuit with the core column, enabling more magnetic fluxes to circulate inside the iron core, reducing the probability of magnetic leakage, and thus reducing the loss of the reactor.

[0054] 2. Drive the upper iron core and the lower iron core to approach or move away from each other through a driving member, so that the impedances of the upper and lower coils are consistent. At the same time, guide the upper iron core and the lower iron core during movement through a guiding assembly, so that the upper iron core and the lower iron core can only move vertically and cannot rotate, making the movement process of the two more accurate, reducing the probability of wear of the lead screw caused by the skew of the two, further reducing the probability of inconsistent impedances of the upper and lower coils, and reducing the probability of loss and vibration noise of the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 is a three-dimensional structural schematic diagram of Embodiment 1 of the reactor structure;

[0056] Figure 2 is Figure 1 the sectional view taken along A-A in

[0057] Figure 3 is a partial structural schematic diagram of Embodiment 1 of the reactor structure;

[0058] Figure 4 is a partial structural schematic diagram of Embodiment 2 of the reactor structure;

[0059] Figure 5 is Figure 4 the enlarged schematic diagram of part B in

[0060] Reference numerals: 1, body; 11, side yoke; 12, upper cover body; 13, lower cover body; 14, upper cover bracket; 15, lower cover bracket; 17, sliding channel; 18, annular plate; 19, protective tube; 2, core column; 21, upper iron core; 22, lower iron core; 23, mounting hole; 24, communication hole; 3, fixing component; 31, fixing strip one; 32, fixing strip two; 33, fixing hole; 4, driving mechanism; 41, lead screw; 42, driving member; 43, guiding assembly; 44, mounting tube; 45, guiding column; 46, groove body; 5, connecting component; 51, connecting column one; 52, connecting column two; 53, double-headed screw; 531, positioning nut; 54, inserting section; 55, pressing section; 56, guiding hole; 57, threaded hole; 58, sliding hole; 6, supporting component; 61, supporting disc; 62, fixing ring; 63, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0061] The following further details the present application.

[0062] The embodiment of the present application discloses a single-phase adjustable reactor structure.

[0063] Embodiment 1, refer to Figure 1, the structure of the single-phase adjustable reactor includes a body 1, a core column 2 arranged on the body 1, and yokes 11 surrounding the core column 2. The core column 2 includes an upper iron core 21 and a lower iron core 22 arranged vertically at intervals. The upper iron core 21 and the lower iron core 22 are coaxially and oppositely arranged. The upper iron core 21 is located below the lower iron core 22 and they have the same structural dimensions. It also includes a driving mechanism 4 arranged on the body 1 and used to drive the upper iron core 21 and the lower iron core 22 to approach or separate from each other. When the driving mechanism 4 is activated, it is used to adjust the air gap size to achieve the adjustment of inductance.

[0064] Refer to Figure 1 and Figure 2 , the body 1 includes an upper cover 12 and a lower cover 13 arranged vertically opposite to each other. An upper cover bracket 14 is fixedly installed at the top of the upper cover 12, and a lower cover bracket 15 is fixedly installed at the bottom of the lower cover 13. The yokes 11 are in a vertical state and are fixedly installed on the side walls of the opposite sides of the upper cover 12 and the lower cover 13. A plurality of yokes 11 are arranged in a circumferential array around the axis of the core column 2. Sliding channels 17 are provided on the side walls of the opposite sides of the upper cover 12 and the lower cover 13. The sliding channels 17 and the core column 2 are coaxially arranged. Protective tubes 19 coaxial with the sliding channels 17 are fixedly installed at the opposite ends of the upper cover 12 and the lower cover 13. The inner diameter of the protective tubes 19 is the same as the diameter of the sliding channels 17. The top of the upper iron core 21 is slidably installed in the sliding channel 17 and can slide into the protective tube 19. The bottom of the upper iron core 21 extends vertically downward between the four yokes 11. Similarly, the bottom of the lower iron core 22 is slidably installed on another sliding channel 17 and can slide into the protective tube 19. The top of the lower iron core 22 extends vertically upward between the four yokes 11.

[0065] Fixing components 3 for fixing the inductor coil are provided between the four yokes 11 and the core column 2 on the body 1. The four fixing components 3 cooperate to fix the inductor coil. The fixing component 3 includes a first fixing strip 31 and a second fixing strip 32. Annular plates 18 are fixedly installed on the side walls of the opposite sides of the upper cover 12 and the lower cover 13. The annular plates 18 form annular holes coaxial with the sliding channels 17. The two annular holes are for the upper iron core 21 and the lower iron core 22 to pass through. The top and bottom of the first fixing strip 31 respectively abut against the opposite side walls of the two annular plates 18 for positioning, and both ends of the first fixing strip 31 are in plug-in fit with the two annular plates 18 through two plug-in blocks for positioning. After removing the upper cover 12, the first fixing strip 31 can be removed, so as to achieve the disassembly and installation of the first fixing strip 31.

[0066] The fixing bar two 32 is fixedly installed on the side wall of the fixing bar one 31 close to the side of the side yoke 11 by screws. A plurality of fixing holes 33-1 are vertically spaced on both side walls of the fixing bar one 31 and the fixing bar two 32 that are in contact with each other. The inductance coil is first wound around the fixing holes 33 of the plurality of fixing bars one 31 for positioning, and then the fixing bar two 32 is fixedly installed on the fixing bar one 31. Two corresponding fixing holes 33 on the fixing bar one 31 and the fixing bar two 32 cooperate to limit the inductance coil, thereby improving the stability of the cable coil, that is, improving the service life of the reactor.

[0067] Refer to Figure 1 and Figure 3 , both the upper iron core 21 and the lower iron core 22 are of a radially cast integral structure, and two mounting holes 23 and a communication hole 24 are coaxially formed during casting. The two mounting holes 23 are located at both ends of the upper iron core 21 or the lower iron core 22, and the communication hole 24 connects the two mounting holes 23. The diameter of the mounting hole 23 is larger than the diameter of the communication hole 24.

[0068] Refer to Figures 1-3 , the driving mechanism 4 includes a lead screw 41 and a driving member 42. The lead screw 41 is rotatably installed on the side walls of the upper cover bracket 14 and the lower cover bracket 15 opposite to each other. The lead screw 41 coaxially passes through two protective tubes 19 and two sliding channels 17, and the top end of the lead screw 41 extends above the upper cover bracket 14. The driving member 42 is used to drive the lead screw 41 to rotate. The driving member 42 is a servo motor. The driving member 42 is fixedly installed on the upper surface of the upper cover bracket 14, and the piston rod of the driving member 42 is connected to the lead screw 41 and is used to drive the lead screw 41 to rotate.

[0069] Refer to Figure 1 , Figure 3 , two threaded sections with opposite spiral lines are mirror-symmetrically arranged on the lead screw 41. The two screw sections are respectively threadedly connected to the upper iron core 21 and the lower iron core 22 through two connecting components 5. The rotation of the lead screw 41 is used to drive the upper iron core 21 and the lower iron core 22 to approach or separate from each other. The connecting component 5 passes through the communication hole 24 and presses against the two mounting holes 23 for positioning.

[0070] The two connecting components 5 have the same structure. Here, the connecting component 5 connected to the upper iron core 21 is taken as an example for explanation; the connecting component 5 includes a connecting column one 51, a connecting column two 52 and a double-headed screw 53. The connecting column one 51 and the connecting column two 52 are both coaxially arranged with the upper iron core 21. The connecting column one 51 and the connecting column two 52 are respectively located at the bottom and the top of the upper iron core 21. The other connecting column one 51 and the connecting column two 52 are respectively located at the top and the bottom of the lower iron core 22, so that the two connecting column ones 51 are located at one end where the upper iron core 21 and the lower iron core 22 are close to each other, and the two connecting column twos 52 are located at one end where the upper iron core 21 and the lower iron core 22 are far from each other.

[0071] The connecting column 1 51 and the connecting column 2 52 have the same structure, and the screw rod 41 is coaxially threadedly connected to the connecting column 1 51 and coaxially slidably penetrates the connecting column 2 52; the connecting column 1 51 includes a coaxially arranged plug-in section 54 and a pressure break 55 with gradually increasing diameters, the plug-in section 54 is coaxially plugged and installed on the connecting hole 24, and the pressure break 55 presses on the mounting hole 23 for positioning, and at the same time, the pressure break 55 is located in the mounting hole 23, and the length of the plug-in section 54 on the connecting column 1 51 is greater than the length of the plug-in section 54 on the connecting column 2 52, thereby increasing the length of the threaded connection with the screw rod 41 and improving the connection strength.

[0072] Reference Figure 1 , Figure 3 Two guide holes 56 are provided on both the connecting column 1 51 and the connecting column 2 52 in a circular array around their own axes. The connecting column 1 51 also has two threaded holes 57 in a circular array around its own axes. The connecting column 2 52 also has two sliding holes 58 in a circular array around its own axes. The two sliding holes 58 are arranged in a one-to-one correspondence with the two threaded holes 57 and are aligned with each other. The two guide holes 56 are both located between the two threaded holes 57. The angle between the guide hole 56 and the adjacent threaded hole 57 is 90 degrees, and the angle between the threaded hole 57 and the adjacent guide hole 56 is also 90 degrees.

[0073] There are two double-headed screws 53, which are respectively threadedly connected to the two threaded holes 57 for positioning, and the double-headed screws 53 are slidably passed through the sliding holes 58. Each double-headed screw 53 is threadedly connected to a positioning nut 531 that presses against the side wall of the connecting column 2 52 away from the connecting column 1 51 for positioning.

[0074] Thread the two double-headed screws 53 onto the two threaded holes 57 for positioning, snap-fit the connecting column 1 51 to the connecting hole 24 and press it against the mounting hole 23 for positioning, and at the same time make the two double-headed screws 53 pass through the connecting hole 24, then snap-fit the connecting column 2 52 to the connecting hole 24, so that the two double-headed screws 53 slide through the two sliding holes 58, and finally thread the two positioning nuts 531 onto the two double-headed screws 53 respectively, twist the positioning nuts 531 to press them onto the connecting column 2 52 and make the connecting column 2 52 press against the mounting hole 23 for positioning, so as to complete the fixed connection between the connecting component 5 and the upper iron core 21, and use the same method to fix the connecting component 5 to the lower iron core 22.

[0075] Reference Figure 1 , Figure 3 The driving mechanism 4 also includes a guide assembly 43, which is arranged on the body 1 and is slidably connected to the connecting assembly 5, so as to guide the movement of the upper iron core 21 and the lower iron core 22 and make them move only vertically.

[0076] The guiding component 43 includes two mounting tubes 44 and two guiding columns 45. The two mounting tubes 44 are fixedly installed on the side walls of the opposite sides of the upper cover bracket 14 and the lower cover bracket 15. Both ends of the lead screw 41 coaxially pass through the two mounting tubes 44. The two guiding columns 45 are fixedly installed on the opposite ends of the two mounting tubes 44, and the two guiding columns 45 are slidably installed on the two guiding holes 56 of the connecting column one 51 and the connecting column two 52, so as to guide the vertical movement of the upper iron core 21 and the lower iron core 22.

[0077] When the upper iron core 21 and the lower iron core 22 are connected to the lead screw 41, the two guiding columns 45 are slidably inserted into the two guiding holes 56 of the upper iron core 21 and the lower iron core 22. Finally, the lead screw 41 and the mounting tube 44 are installed on the machine body 1, and finally the lead screw 41 is connected to the driving member 42 to complete the installation. The driving member 42 is started to drive the lead screw 41 to rotate, so as to drive the upper iron core 21 and the lower iron core 22 to approach or move away from each other.

[0078] The lead screw 41, the connecting component 5 and the guiding component 43 are all made of non-magnetic steel materials. A groove 46 is coaxially opened inside the lead screw 41. The non-magnetic steel has a low magnetic permeability and will not be strongly magnetized by the magnetic field, thus reducing the generation of eddy currents. The opening of the groove 46 further reduces the eddy current loss. The groove 46 destroys the continuous path of the eddy current, so that even if a small amount of eddy current is generated, it will not be able to form a closed loop because the path is cut off, thus significantly reducing the eddy current loss.

[0079] The working principle of the embodiment of the present application is as follows:

[0080] The driving member 42 is started to drive the lead screw 41 to rotate. The rotation of the lead screw 41 drives the upper iron core 21 and the lower iron core 22 to approach or move away from each other, so that the impedances of the upper and lower coils are the same. At the same time, the two guiding columns 45 are used to guide the movement of the upper iron core 21 and the lower iron core 22, making the movement of the upper iron core 21 and the lower iron core 22 more stable and accurate. At the same time, the probability of the lead screw 41 being worn due to the skew of the upper iron core 21 and the lower iron core 22 is reduced, further reducing the probability of the impedances of the upper and lower coils being inconsistent, and reducing the probability of the loss and vibration noise of the reactor.

[0081] Embodiment 2, referring to Figure 4 and Figure 5, The difference between this embodiment and Embodiment 1 is that two support components 6 are provided on the lead screw 41. Two second connecting columns 52 are located between the two support components 6, and the two second connecting columns 52 are respectively connected to the two support components 6. The two support components 6 are threadedly connected to the lead screw 41 and slidably connected to the two guide columns 45, so as to maintain an upward thrust on the upper iron core 21 and the lower iron core 22 under the action of elastic force, thereby reducing the probability of wear or even damage at the connection between the two first connecting columns 51 and the lead screw 41 due to gravity, reducing the loss of the reactor, and improving the operating safety of the reactor.

[0082] The support component 6 includes a support disk 61, a fixing ring 62 and a spring 63. The support disk 61 is threadedly connected to the lead screw 41. The two second connecting columns 52, the upper iron core 21 and the lower iron core 22 are all located between the two support disks 61, and the two guide columns 45 are slidably inserted through the support disk 61, so as to guide the movement of the support disk 61 and limit the rotation of the support disk 61, so that the support disk 61 can only move vertically.

[0083] The fixing ring 62 is coaxially arranged with the second connecting column 52 and is provided with a plurality of through holes at intervals. The plurality of through holes are for the two guide columns 45 and the two double-headed screws 53 to pass through. The two double-headed screws 53 and the two guide columns 45 respectively pass through the plurality of through holes, and then the positioning nuts 531 are threadedly connected to the double-headed screws 53, and the positioning nuts 531 push the fixing ring 62 to press against the second connecting column 52 for positioning. At the same time, removing the positioning nuts 531 can remove and take down the fixing ring 62, so as to realize the installation and disassembly of the fixing ring 62; the spring 63 is sleeved on the lead screw 41 and its two ends are fixedly connected to the opposite side walls of the fixing ring 62 and the support disk 61.

[0084] Refer to Figure 3 、 Figure 4 and Figure 5 , The spring 63 located at the upper iron core 21 is in a stretched state, so as to maintain an upward pulling force on the upper iron core 21. The spring 63 located at the lower iron core 22 is in a compressed state, so as to maintain an upward thrust on the lower iron core 22, thereby being able to reduce the probability of damage to the connection between the lead screw 41 and the first connecting column 51 caused by the gravity of the upper iron core 21 and the lower iron core 22; at the same time, since the lead screw 41 is slidably inserted through the second connecting column 52, the support of the second connecting column 52 is realized through the cooperation of the support disk 61, the fixing ring 62 and the spring 63, so that support can be achieved at both ends of the upper iron core 21 and both ends of the lower iron core 22, improving the stability during the movement of the upper iron core 21 and the lower iron core 22, and reducing the probability of damage to the lead screw 41.

[0085] The rotation of the lead screw 41 drives the support disk 61, the spring 63, and the second connecting column 52 to move simultaneously. After adjusting the air gap, the spring 63 can still continue to support the upper iron core 21 and the lower iron core 22 without changing the support force, thus greatly improving the stability during the adjustment process. At the same time, the structural mass fixedly connected to the upper iron core 21 is much larger than the mass of the support disk 61. Therefore, when the second connecting column 52 stops moving after the movement is completed, the inertia is greater than that of the support disk 61. Therefore, the movement of the upper iron core 21 can be buffered by the spring 63, reducing the buffering force at the connection between the upper iron core 21 and the lower iron core 22 and the lead screw 41, further improving the stability during the adjustment process, reducing the loss of the reactor, and improving the safety of the reactor operation.

[0086] The supporting force of the spring 63 on the lower iron core 22 is less than or equal to the gravity of the lower iron core 22, and the pulling force of the spring 63 on the upper iron core 21 is less than or equal to the gravity of the upper iron core 21; the lower iron core 22 forms a downward pressure on the spring 63, causing the spring 63 to compress and reducing the gap between two adjacent working coils of the spring 63, making the gap smaller and dust difficult to pass through, so as to block the dust from moving onto the lead screw 41; the upper iron core 21 forms a downward pulling force on the spring 63, causing the spring 63 to be stretched, increasing the gap between two adjacent working coils of the spring 63, making it easy for dust to pass through and move onto the lead screw 41; protective sleeves are fixedly installed on the opposite side walls of the support disk 61 at the first connecting column 51, that is, on the opposite side walls of the fixing ring 62 and the mounting pipe 44. The other ends of the two protective sleeves are respectively fixedly connected to the fixing ring 62 and the mounting pipe 44. The two protective sleeves are in a telescopic state and can be bellows. The lead screw 41 passes through the two protective sleeves to block the dust from moving onto the lead screw 41 and achieve protection.

[0087] The working principle of the embodiment of the present application is as follows:

[0088] The spring 63 drives the upper iron core 21 and the lower iron core 22 to both maintain an upward movement trend, which can reduce the probability of damage at the connection between the lead screw 41 and the first connecting column 51 and improve the stability of the vertical movement of the upper iron core 21 and the lower iron core 22; at the same time, when the upper iron core 21 and the lower iron core 22 move, the support disk 61, the fixing ring 62, and the spring 63 can all move simultaneously, enabling the upper iron core 21 and the lower iron core 22 to continue to be supported and the support force remains unchanged after the movement, further improving the support effect. At the same time, the inertia during the movement of the upper iron core 21 and the lower iron core 22 can be buffered by the spring 63, further reducing the loss of the reactor and improving the safety of the reactor operation.

[0089] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A single-phase adjustable reactor structure, characterized in that: It includes a body (1), a core column (2) provided on the body (1), and a yoke (11) located around the core column (2). The core column (2) includes an upper iron core (21) and a lower iron core (22) arranged vertically at intervals, and further includes a driving mechanism (4) provided on the body (1). The driving mechanism (4) includes: A lead screw (41) rotatably arranged on the body (1); Two connecting components (5) detachably provided on the upper iron core (21) and the lower iron core (22) respectively and threadedly connected to the lead screw (41). The rotation of the lead screw (41) is used to drive the upper iron core (21) and the lower iron core (22) to approach or move away from each other; A driving member (42) for driving the lead screw (41) to rotate; A guiding component (43) provided on the body (1) and slidably connected to the connecting component (5) and used to guide the movement of the upper iron core (21) and the lower iron core (22); Both the upper iron core (21) and the lower iron core (22) are of a radially integrally cast structure, and two mounting holes (23) and a communication hole (24) are coaxially formed during casting. The two mounting holes (23) are located at both ends of the upper iron core (21) or the lower iron core (22), and the diameter is larger than the diameter of the communication hole (24) and they are communicated with each other through the communication hole (24). The connecting component (5) passes through the communication hole (24) and presses against the two mounting holes (23) for positioning and can be removed from the two mounting holes (23) for replacement; The connecting component (5) includes: A first connecting column (51) and a second connecting column (52), both clamped and installed on the communication hole (24) and respectively pressing against the two mounting holes (23) for positioning and slidably connected to the guiding component (43). The two first connecting columns (51) are respectively located at one end where the upper iron core (21) and the lower iron core (22) approach each other and are located within the mounting hole (23). The lead screw (41) is threadedly connected to the two first connecting columns (51) and slidably penetrates through the two second connecting columns (52); A plurality of double-headed screws (53) arranged at intervals and threadedly connected to the first connecting column (51) and slidably penetrating through the second connecting column (52). A positioning nut (531) that presses against the second connecting column (52) for positioning is threadedly connected to each double-headed screw (53); Two supporting components (6) that are threadedly connected to the lead screw (41) and slidably connected to the guiding component (43) are threadedly connected to the lead screw (41). The two second connecting columns (52) are located between the two supporting components (6) and are respectively connected to the two supporting components (6). The two supporting components (6) move simultaneously with the two second connecting columns (52) and maintain an upward acting force on the upper iron core (21) and the lower iron core (22) under the action of elastic force; The supporting component (6) includes: A supporting disk (61) slidably connected to the guiding component (43) and threadedly connected to the lead screw (41); A fixing ring (62) detachably provided on the second connecting column (52); A spring (63) is sleeved on a lead screw (41), and both ends thereof are connected to a fixed ring (62) and a support disc (61); one of the springs (63) generates an upward pulling force on the upper iron core (21), and the other spring (63) generates an upward pushing force on the lower iron core (22).

2. The structure of a single-phase adjustable reactor according to claim 1, characterized in that: The guiding assembly (43) includes: Two mounting tubes (44) are vertically and spacedly arranged on the machine body (1), and the lead screw (41) coaxially passes through the two mounting tubes (44); Two guiding columns (45) are spacedly arranged on the two mounting tubes (44) and slidably penetrate through the two connecting columns I (51) and the two connecting columns II (52) for guiding.

3. A single-phase adjustable reactor structure according to claim 1, characterized in that: The lead screw (41) and the connecting assembly (5) are both made of non-magnetic steel materials, and a groove body (46) for destroying the eddy current path is coaxially formed inside the lead screw (41).

4. A single-phase adjustable reactor structure according to claim 1, characterized in that: The supporting force of the spring (63) on the lower iron core (22) is less than or equal to the gravity of the lower iron core (22). Protective sleeves respectively connected to the fixed ring (62) and the machine body (1) are arranged on the opposite side walls of the support disc (61) at the connecting column I (51), and the lead screw (41) passes through the protective sleeves for protection.

5. A single-phase adjustable reactor structure according to claim 1, characterized in that: Through holes for multiple double-headed screws (53) and the guiding assembly (43) to pass through are formed in the fixed ring (62), and the positioning nut (531) pushes the fixed ring (62) to press against the connecting column II (52) for positioning.

6. The structure of a single-phase adjustable reactor according to claim 1, characterized in that: Fixing assemblies (3) for fixing the inductor coils are arranged between the plurality of side yokes (11) and the core column (2) on the machine body (1), and the fixing assemblies (3) include: A first fixing strip (31) is arranged on the machine body (1); A second fixing strip (32) is detachably arranged on the first fixing strip (31), and a plurality of fixing holes (33) are vertically and spacedly formed on the side walls of the second fixing strip (32) and the first fixing strip (31) that are in mutual contact. Two fixing holes (33) on the first fixing strip (31) and the second fixing strip (32) cooperate to position the inductor coil.

Images