Air gap adjustable reactor

Abstract

The application discloses an air gap adjustable electric reactor, comprising a structure frame, a core assembly, a coil, an air gap adjusting assembly and a pressing assembly; the core assembly is supported on the structure frame, the core assembly comprises a plurality of core modules which are stacked in a preset direction, an air gap is formed between two adjacent core modules, and the coil is arranged around at least part of the core assembly; the air gap adjusting assembly comprises a driving assembly and at least one adjusting support, the adjusting support is arranged in the air gap and can rotate relative to the core module, the adjusting support has at least two groups of support portions, each group of support portions has different support sizes in the stacking direction of the core module when being rotated to a support position between two adjacent core modules; the driving assembly is in transmission connection with the adjusting support and is used for driving the adjusting support to rotate, so that the support portions of different groups are selectively rotated to the support position, and the height of the air gap is adjusted by the support portions located at the support position.

Description

Technical Field

[0001] This invention belongs to the field of electrical equipment technology and relates to an air gap adjustable reactor. Background Technology

[0002] Reactors typically utilize an iron core surrounding a coil, with an air gap within the core's magnetic circuit to adjust the magnetic reluctance and inductance characteristics. The iron core of existing reactors is generally formed by stacking multiple core units sequentially, with adjacent units maintained at a predetermined distance by insulating pads or other spacers, thus creating a fixed-height air gap. When the reactor needs to be adapted to different operating parameters, it is usually necessary to disassemble the core's clamping structure and change the air gap height by replacing spacers of different thicknesses or readjusting the positions of the core units.

[0003] However, the core unit is usually in a state of overall compression, and multiple air gaps are distributed along the stacking direction of the core. During the adjustment process, the core unit needs to be repeatedly disassembled, positioned and re-compressed, which is a cumbersome operation. Furthermore, assembly errors at various positions can make it difficult to accurately maintain the adjusted air gap height. Summary of the Invention

[0004] This application aims to provide an air gap adjustable reactor, which solves the problem of inconvenient air gap height adjustment in existing reactors, making it difficult to meet the usage requirements of adjusting reactor parameters under different working conditions.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An air-gap adjustable reactor includes a structural frame, a core assembly, a coil, an air-gap adjustment assembly, and a clamping assembly; The core assembly is supported on the structural frame. The core assembly includes a plurality of core modules stacked sequentially along a preset direction. An air gap is formed between two adjacent core modules. The coil is arranged around at least a portion of the core assembly. The air gap adjustment assembly includes a drive assembly and at least one adjustment support member. The adjustment support member is disposed in the air gap and is rotatable relative to the iron core module. The adjustment support member has at least two sets of support parts. Each set of support parts has different support dimensions along the stacking direction of the iron core modules when it rotates to the support position between two adjacent iron core modules. The drive assembly is connected to the adjusting support member for driving the adjusting support member to rotate, so that the different groups of support parts can be selectively rotated to the support position, and the height of the air gap can be adjusted by the support parts located at the support position. The clamping assembly is connected to the structural frame and abuts against one end of the iron core assembly along the stacking direction. The other end of the iron core assembly along the stacking direction is supported on the structural frame. The clamping assembly is used to cooperate with the structural frame to clamp multiple iron core modules along the stacking direction, so that the support part located at the support position abuts against two adjacent iron core modules respectively, and the height of the air gap is limited by the support dimension corresponding to the support part.

[0006] The beneficial effects of this invention are as follows: This invention provides a rotatable adjusting support within the air gap between two adjacent core modules, and at least two sets of support portions with different support dimensions are provided on the adjusting support. This allows the driving assembly to rotate the adjusting support and selectively switch the support portion corresponding to the target air gap height to the support position between two adjacent core modules. Therefore, the air gap height can be changed by rotating the support portion without disassembling multiple core modules or replacing spacers of different thicknesses, thus simplifying the air gap adjustment process. After the target support portion rotates to the support position, the clamping assembly cooperates with the structural frame along... Multiple core modules are pressed together in the stacking direction, so that the core modules on both sides of the air gap abut against the selected support. The support size corresponding to the support mechanically limits the air gap height, which can reduce the possibility of relative displacement of the core modules along the stacking direction and keep the adjusted air gap height stable. Since changing the air gap height can change the magnetic reluctance of the core assembly's magnetic circuit, and thus change the inductance and reactance characteristics of the reactor, the same reactor can be adapted to different operating parameters by switching different support sizes, which improves the convenience of air gap adjustment, the stability of the adjusted structure, and the adaptability to different operating conditions. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of an air gap adjustable reactor according to an embodiment of this application.

[0008] Figure 2 It is used for display Figure 1 Top view of the structure.

[0009] Figure 3 It is along Figure 2 A cross-sectional view along line AA in the middle.

[0010] Figure 4 It is a structural diagram used to show the inner iron core, outer iron core and bottom iron core in combination.

[0011] Figure 5 It is used for display Figure 4 Top view of the structure.

[0012] Figure 6 It is along Figure 5 A cross-sectional view along the BB line.

[0013] Figure 7 yes Figure 6 Enlarged view of section C.

[0014] Figure 8 This is a schematic diagram used to demonstrate the structure when the elastomer supports the air gap to its maximum height.

[0015] Figure 9 This is a schematic diagram of the structure of the adjustable support component supporting the air gap through the support part corresponding to L3.

[0016] Figure 10 This is a structural diagram used to illustrate the arrangement of the adjustable support components in the air gap.

[0017] Figure 11 yes Figure 10 Enlarged view of section D in the middle.

[0018] Explanation of reference numerals in the attached drawings: 1. Structural frame; 11. Insulating cylinder; 12. Insulating top cover; 13. Insulating tie rod; 14. Base; 15. Pad; 16. Pressure plate; 17. Placement space; 18. Insulating layer; 2. Inner iron core; 21. Operating channel; 22. Iron core module; 23. Air gap; 3. Outer iron core; 4. Bottom iron core; 5. Coil; 51. Split-type connector; 6. Drive assembly; 61. Drive unit; 611. Drive shaft; 62. Transmission assembly; 621. First bevel gear; 622. Second bevel gear; 623. Transmission structure; 6231. Guide groove; 6232. Guide block; 63. Sliding frame; 64. Rotary support shaft; 65. Guide rod; 7. Adjusting support; 71. Support part; 72. Embedded annular groove; 73. Rotating shaft; 74. Elastic body; 75. Clamping part. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0020] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In the embodiments of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] This invention provides an appendix Figures 1-11 In this embodiment of the invention, an adjustable air gap 23 reactor includes a structural frame 1, an iron core assembly, a coil 5, an air gap 23 adjustment assembly, and a clamping assembly. The structural frame 1 is used to support the iron core assembly and provide an installation and load-bearing foundation for the air gap 23 adjustment assembly and the clamping assembly. The iron core assembly and the coil 5 cooperate to form the electromagnetic working part of the reactor. The air gap 23 adjustment assembly is used to change the height of the air gap 23 inside the iron core assembly. The clamping assembly is used to clamp the iron core assembly after the air gap 23 is adjusted, so that the adjusted height of the air gap 23 remains stable.

[0024] The core assembly, supported on the frame 1, comprises multiple core modules 22 stacked sequentially along a predetermined direction. Adjacent core modules 22 are spaced apart to form an air gap 23. The predetermined direction is the stacking direction of the core modules 22, and the size of the air gap 23 along this stacking direction constitutes its height. The core modules 22 are held together in a predetermined arrangement by the clamping action of the clamping assembly, allowing the magnetic flux generated by the coil 5 after energization to be transmitted through the core assembly and its air gap 23. The coil 5 is arranged around at least a portion of the core assembly. The coil 5 generates a magnetic field after energization, and the core assembly provides a magnetic path for the magnetic flux generated by the coil 5. The air gap 23 between adjacent core modules 22 forms part of the magnetic circuit; by changing the height of the air gap 23, the magnetic reluctance of the magnetic circuit can be changed, thereby altering the inductance and reactance characteristics of the reactor.

[0025] The air gap 23 adjustment assembly includes a drive assembly 6 and at least one adjustment support 7. The adjustment support 7 is located within the air gap 23 formed between two adjacent core modules 22 and is rotatable relative to the core modules 22. The adjustment support 7 serves two purposes: firstly, to support the two adjacent core modules 22, and secondly, to change the distance between the two adjacent core modules 22 by rotation. The adjustment support 7 has at least two sets of support portions 71. Each set of support portions 71 is positioned between the two adjacent core modules 22 when the adjustment support 7 is rotated to a corresponding angle. The support position, as referred to here, means the position where the corresponding support portion 71 is respectively opposite to the two core modules 22 on both sides of the air gap 23 and abuts against the two core modules 22 in a compressed state. The support dimensions corresponding to different sets of support portions 71 along the stacking direction of the core modules 22 are different. The support dimension can be understood as the dimension used to limit the distance between two adjacent core modules 22 when a set of support portions 71 is in the support position. When the first set of support parts 71 is in the supported position, an air gap 23 corresponding to the height of the first set of support parts 71 is formed between two adjacent core modules 22. When the adjusting support 7 is rotated so that the second set of support parts 71 is in the supported position, another air gap 23 corresponding to the height of the second set of support parts 71 is formed between two adjacent core modules 22. Thus, by switching different sets of support parts 71, the same air gap 23 can be adjusted between at least two heights.

[0026] The drive assembly 6 is connected to the adjusting support 7 via a transmission connection. When the drive assembly 6 outputs driving force, it transmits the driving force to the adjusting support 7, causing the adjusting support 7 to rotate relative to the core module 22. As the adjusting support 7 rotates, different sets of support parts 71 sequentially pass through the support positions between two adjacent core modules 22. When a set of support parts 71 corresponding to the height of the target air gap 23 rotates to the support position, the drive assembly 6 stops driving, keeping that set of support parts 71 between two adjacent core modules 22.

[0027] The clamping assembly is connected to the structural frame 1 and is located at one end of the core assembly along the stacking direction. The clamping assembly abuts against this end of the core assembly, and the other end of the core assembly along the stacking direction is supported by the structural frame 1. Thus, the clamping assembly and the structural frame 1 respectively constrain the multiple core modules 22 from both ends of the core assembly along the stacking direction.

[0028] When the clamping assembly applies a clamping force to the core assembly, the clamping force is transmitted from one end to the other along the stacking direction of the core modules 22, causing the core modules 22 on both sides of the air gap 23 to move toward the support portion 71 located at the support position. After two core modules 22 abut against their corresponding support portions 71, the adjusting support 7 bears the clamping load between the two adjacent core modules 22, and the support dimension of the support portion 71 along the stacking direction thereby limits the height of the air gap 23. The structural frame 1 bears the reaction force transmitted from the other end of the core assembly, thus cooperating with the clamping assembly to form a clamping and clamping of multiple core modules 22.

[0029] In this embodiment, the coil 5 generates a magnetic field after being energized. The core assembly guides the magnetic flux generated by the coil 5, and the air gap 23 affects the magnetic reluctance of the magnetic circuit formed by the core assembly. Since different sets of support portions 71 of the adjusting support member 7 have different support dimensions, the distance between two adjacent core modules 22 is different when different sets of support portions 71 are in the supported position, corresponding to different air gap 23 heights. After the air gap 23 height changes, the magnetic reluctance of the magnetic circuit changes accordingly, thereby giving the reactor inductance and reactance characteristics corresponding to the air gap 23 height.

[0030] In this embodiment, the target air gap 23 height is first determined based on the required reactance characteristics of the reactor, and a set of support parts 71 corresponding to the target air gap 23 height is determined. Then, the clamping assembly is positioned so as not to obstruct the rotation of the adjusting support 7, thereby reducing the constraint exerted by the core modules 22 on the adjusting support 7 on both sides of the air gap 23. Next, the drive assembly 6 is activated, causing the adjusting support 7 to rotate relative to the core modules 22, thus sequentially switching the positions of different sets of support parts 71.

[0031] When a set of support sections 71 corresponding to the target air gap 23 height rotates to the support position between two adjacent core modules 22, the drive assembly 6 is stopped. At this time, the target support section 71 is located between the core modules 22 on both sides of the air gap 23. Then, the clamping assembly applies a clamping force to the multiple core modules 22 along the stacking direction of the core modules 22, so that two adjacent core modules 22 abut against the support section 71 in the support position. As the clamping action is established, the distance between two adjacent core modules 22 is limited to the support dimension corresponding to the set of support sections 71, thereby maintaining the air gap 23 at the target height.

[0032] After adjusting and clamping the air gap 23, the coil 5 is connected to the corresponding working circuit. The coil 5 generates a magnetic field, and the core assembly and air gap 23 together form a corresponding magnetic circuit, causing the reactor to produce a corresponding reactive effect according to the adjusted air gap 23 height. When it is necessary to change the reactor's reactive characteristics, the coil 5 is deactivated, the clamping assembly is repositioned to a state that does not obstruct the rotation of the adjusting support 7, and the adjusting support 7 is rotated via the drive assembly 6, switching another set of support parts 71 to the support position. Then, the clamping assembly is used to clamp the multiple core modules 22 again, thus completing the readjustment of the air gap 23 height.

[0033] For example, the adjusting support 7 can be provided with three sets of support portions 71, each set of support portions 71 including two support portions 71 arranged opposite each other around the rotation axis 73 of the adjusting support 7. When any set of support portions 71 rotates to the support position, the distance between the two support portions 71 in that set along the stacking direction of the core modules 22 constitutes the support dimension of that set of support portions 71, and this support dimension is collectively referred to as L. The support dimensions corresponding to the three sets of support portions 71 are denoted as L1, L2 and L3, respectively, and L1, L2 and L3 are different from each other, exemplarily satisfying L3 < L2 < L1. When the support portion 71 with support dimensions of L1, L2 or L3 rotates to the support position, the air gap 23 between two adjacent core modules 22 is correspondingly limited to different heights.

[0034] With the above structure, adjusting the air gap 23 does not require disassembling the core modules 22 one by one, nor does it require changing the distance between adjacent core modules 22 by replacing independent spacers of different thicknesses. Simply driving the adjusting support 7 to rotate and selecting the support part 71 with the corresponding support size allows for switching the height of the air gap 23, thus simplifying the adjustment process. After adjustment, the clamping assembly cooperates with the structural frame 1 to clamp multiple core modules 22, ensuring that the support part 71 stably abuts against adjacent core modules 22. This restricts the relative movement of the core modules 22 along the stacking direction, improving the stability of the air gap 23 height during reactor operation. Different support parts 71 correspond to different air gap 23 heights, also allowing the same reactor to adjust the magnetic circuit reluctance according to usage requirements, improving its adaptability to different operating conditions.

[0035] At least one of the air gaps 23 is provided with a plurality of the adjustment supports 7, and the plurality of adjustment supports 7 are arranged at intervals along the circumference of the core module 22.

[0036] In this embodiment, for at least one air gap 23 formed in the core assembly, a plurality of adjusting supports 7 are provided within the air gap 23, and the plurality of adjusting supports 7 are distributed at intervals along the circumference of the core module 22. Each adjusting support 7 is located between two adjacent core modules 22 forming the air gap 23, and can rotate relative to the core module 22, so as to change the support distance between two adjacent core modules 22 at the corresponding position by switching between different sets of support parts 71 in the support position.

[0037] The circumferential direction of the core module 22, as referred to here, means the direction of the center line extending around the core module 22 along the stacking direction. Multiple adjusting supports 7 are spaced apart from each other along this circumferential direction, so that they act on different circumferential regions of adjacent core modules 22. Compared to providing only one adjusting support 7 within the air gap 23, multiple adjusting supports 7 can form multiple mutually separated support positions around the air gap 23, distributing the supporting force on adjacent core modules 22 across different areas, thereby reducing the possibility of the core module 22 tilting due to localized stress.

[0038] The drive assembly 6 maintains a transmission relationship with each adjusting support 7, enabling the driving force output by the drive assembly 6 to be transmitted to the corresponding adjusting support 7. During adjustment, each adjusting support 7 rotates, positioning the support portion 71 that matches the height of the target air gap 23 in the supported position. After all the adjusting supports 7 have completed their position adjustments, the support dimensions at each support position along the stacking direction of the core module 22 correspond to the height of the target air gap 23. The specific transmission method between the drive assembly 6 and the adjusting support 7 is not limited in this embodiment, as long as it enables the adjusting support 7 to rotate relative to the core module 22 and complete the switching of the support portion 71.

[0039] Furthermore, after the multiple adjusting supports 7 are distributed circumferentially along the core module 22, the distance between two adjacent core modules 22 is no longer limited by a single position, but is jointly limited by multiple circumferential support positions. When the support portion 71 with the corresponding support size in each adjusting support 7 is in the support position, the multiple support portions 71 jointly bear the compressive load applied by the clamping assembly, so that the core modules 22 on both sides of the air gap 23 are supported at multiple positions. As a result, the possibility of the core module 22 deflecting around a single support position can be reduced, and the air gap 23 can maintain a relatively consistent height at different circumferential positions.

[0040] For example, two, three, four or more adjusting supports 7 can be provided within an air gap 23. The specific number of adjusting supports 7 can be determined based on the external dimensions of the core module 22, the clamping load, the span of the air gap 23, and the required support stability. When the core module 22 is small or the load is low, a relatively small number of adjusting supports 7 can be provided; when the circumferential dimension of the core module 22 is large, or when it is necessary to further distribute the clamping load, the number of adjusting supports 7 can be increased. Multiple adjusting supports 7 can be evenly spaced along the circumference of the core module 22, so that the circumferential spacing between adjacent adjusting supports 7 is the same, so as to form a more balanced support around the air gap 23; multiple adjusting supports 7 can also be arranged with unequal spacing according to the local stress condition of the core module 22, for example, the spacing between adjacent adjusting supports 7 can be appropriately reduced in areas bearing a large load. Regardless of the spacing method, as long as multiple adjusting supports 7 are separated from each other circumferentially and can provide support for two adjacent core modules 22 at different circumferential positions, the technical objective of this embodiment can be achieved.

[0041] The adjusting support 7 can be a rotating component with multiple different radial or opposing dimensions. Its overall shape can be configured as a multifaceted, wheel-shaped, columnar, or structure with different contour segments, depending on the required support dimensions. Each set of support parts 71 can be arranged on the outer periphery of the adjusting support 7 and distributed around the rotation axis 73 of the adjusting support 7. The axial length, circumferential width, and contact area of ​​the support parts 71 of the adjusting support 7 can be determined according to the required load-bearing capacity, so that the support parts 71 can stably bear the load transmitted by the core module 22 under the compressed state.

[0042] The driving assembly 6 includes a driving part 61 and a transmission assembly 62. The driving part 61 is connected to multiple adjusting support members 7 within the same air gap 23 via the transmission assembly 62, so as to synchronously drive the multiple adjusting support members 7 to rotate, causing the support parts 71 of the multiple adjusting support members 7 with the same support size to rotate synchronously to the support position. In this embodiment, the driving assembly 6 in the air gap 23 adjusting assembly includes a driving part 61 and a transmission assembly 62. The driving part 61 is used to provide the driving force to rotate the adjusting support members 7. The transmission assembly 62 is disposed between the driving part 61 and the multiple adjusting support members 7 within the same air gap 23, and is used to transmit the driving force output by the driving part 61 to each adjusting support member 7, so that the multiple adjusting support members 7 rotate synchronously under the same driving action.

[0043] The drive unit 61 establishes a transmission relationship with the transmission assembly 62, which in turn establishes a transmission relationship with multiple adjusting support members 7 within the same air gap 23. When the drive unit 61 operates, its output driving force is distributed and transmitted to the multiple adjusting support members 7 via the transmission assembly 62, causing each adjusting support member 7 to rotate relative to the iron core modules 22 on both sides of the air gap 23. The transmission assembly 62 creates a linkage relationship among the multiple adjusting support members 7, ensuring that the multiple adjusting support members 7 operate according to their corresponding rotational states, thus preventing inconsistent rotation angles that would occur when the multiple adjusting support members 7 are adjusted independently.

[0044] Each adjusting support 7 within the same air gap 23 has at least two sets of support portions 71, with different sets of support portions 71 corresponding to different support dimensions. Support portions 71 with the same support dimension among the multiple adjusting supports 7 correspond to each other. When the air gap 23 needs to be adjusted to a target height, the drive unit 61 synchronously drives the multiple adjusting supports 7 to rotate via the transmission assembly 62, causing the support portions 71 corresponding to the target support dimension among the multiple adjusting supports 7 to synchronously rotate to the support position between two adjacent core modules 22.

[0045] Synchronous rotation, as referred to here, is not limited to multiple adjusting support members 7 having exactly the same spatial rotation direction at any given time. Rather, it means that multiple adjusting support members 7 maintain corresponding rotational states under the unified drive of the transmission assembly 62, and that during the same adjustment process, support parts 71 with the same support size reach the support position together. Depending on the arrangement of the multiple adjusting support members 7 within the air gap 23, each adjusting support member 7 can adopt the same rotation direction or different rotation directions that cooperate with each other, as long as the support parts 71 with the same support size are ultimately synchronously positioned in the support position.

[0046] During the adjustment of the air gap 23, multiple adjusting supports 7 act together on two adjacent core modules 22. If some of the supporting parts 71 of the multiple adjusting supports 7 have different support dimensions, the support height at different positions of the air gap 23 may be inconsistent after the clamping assembly applies the clamping force. By driving the multiple adjusting supports 7 uniformly through the drive unit 61 and the transmission assembly 62, the multiple adjusting supports 7 can be switched synchronously to the same support dimension, thereby allowing the multiple adjusting supports 7 to jointly limit the distance between two adjacent core modules 22.

[0047] Furthermore, the drive unit 61 can adopt a drive structure capable of outputting rotational driving force, or it can adopt a drive structure that outputs other forms of motion and converts them into the rotation of the adjusting support members 7 via the transmission assembly 62. The power source of the drive unit 61 can be set according to the operating conditions of the reactor, as long as it can provide the transmission assembly 62 with sufficient driving force to drive the rotation of multiple adjusting support members 7.

[0048] The transmission assembly 62 can employ a mechanical transmission structure 623 capable of transmitting a drive input to multiple adjusting supports 7. Its specific composition, shape, and installation position can be determined based on the number and arrangement of the adjusting supports 7 and the required driving force. The transmission assembly 62 can be a single unit or composed of multiple cooperating transmission parts; the transmission parts can be directly connected or indirectly connected via intermediate transmission components. As long as the above structure enables multiple adjusting supports 7 within the same air gap 23 to move in tandem and allows supports 71 of the same size to reach their respective support positions synchronously, the technical objective of this embodiment can be achieved.

[0049] Multiple adjustable support members 7 can have the same shape and support size distribution, so that each adjustable support member 7 is supported by the same group of support parts 71 under the same rotation state; multiple adjustable support members 7 can also be arranged with corresponding shapes or support parts 71 according to their installation direction, as long as multiple adjustable support members 7 can form the same actual support height after synchronous driving.

[0050] The air gap 23 adjustment assembly also includes a sliding frame 63 corresponding to the air gap 23 on which the plurality of adjustment supports 7 are provided. The sliding frame 63 is slidably connected to the structural frame 1 along the stacking direction of the core module 22. The plurality of adjustment supports 7 are rotatably connected to the sliding frame 63. The transmission assembly 62 is disposed on the sliding frame 63 and is pulsatorically connected to the drive unit 61 and the plurality of adjustment supports 7, so that the transmission assembly 62 and the plurality of adjustment supports 7 move along the stacking direction with the sliding frame 63.

[0051] In this embodiment, the sliding frame 63 is disposed on the structural frame 1 and slidably connected to the structural frame 1 along the stacking direction of the core modules 22. The structural frame 1 serves to provide load-bearing and motion constraints for the sliding frame 63, enabling the sliding frame 63 to move relative to the structural frame 1 along the stacking direction without disengaging from the adjustment area of ​​the corresponding air gap 23. The sliding connection between the sliding frame 63 and the structural frame 1 should allow the sliding frame 63 to generate corresponding displacement when the height of the air gap 23 changes, so that the components mounted on the sliding frame 63 can move with the position of the air gap 23.

[0052] Multiple adjusting supports 7 are disposed within corresponding air gaps 23 and are rotatably connected to sliding frames 63. The sliding frames 63 provide rotational support for the adjusting supports 7, allowing each adjusting support 7 to rotate relative to the core module 22 while maintaining its installation position relative to the air gap 23. When the adjusting supports 7 rotate, different sets of support portions 71 can selectively enter the support position between two adjacent core modules 22, thereby defining the height of the air gap 23 with different support dimensions.

[0053] The transmission assembly 62 is mounted on the sliding frame 63 and forms a transmission relationship with the drive unit 61 and the plurality of adjusting supports 7. The drive unit 61 provides the driving force required for the rotation of the adjusting supports 7, and the transmission assembly 62 receives the driving force output by the drive unit 61 and transmits the driving force to the plurality of adjusting supports 7. Since the transmission assembly 62 and the plurality of adjusting supports 7 are all supported by the sliding frame 63, when the sliding frame 63 moves along the stacking direction, the transmission assembly 62 and the plurality of adjusting supports 7 can move together with the sliding frame 63, thereby maintaining a stable relative installation relationship between the transmission assembly 62 and the adjusting supports 7.

[0054] It should be noted that when the adjusting support 7 is switched from one set of support parts 71 to another, the distance between two adjacent core modules 22 will change accordingly because different sets of support parts 71 have different support dimensions along the stacking direction of the core modules 22. For the air gap 23 located in the middle of the core assembly, at least one core module 22 on both sides of the air gap 23 will change position along the stacking direction, causing the position of the air gap 23 to move accordingly. If the adjusting support 7 and its transmission assembly 62 are fixed relative to the structural frame 1, the adjusting support 7 may deviate from the corresponding air gap 23, the transmission relationship may be misaligned, or the adjusting support 7 may experience abnormal force.

[0055] In this embodiment, the adjusting support 7 and the transmission assembly 62 are mounted on a sliding frame 63 that can move along the stacking direction, so that the sliding frame 63, the transmission assembly 62, and the multiple adjusting supports 7 constitute a follower unit that can move as a whole. When the height of the air gap 23 changes and causes the position of the air gap 23 to change along the stacking direction, the follower unit can generate a corresponding displacement relative to the structural frame 1, so that the multiple adjusting supports 7 continue to be within the corresponding air gap 23, and the transmission assembly 62 continues to maintain the transmission relationship with the drive unit 61 and the multiple adjusting supports 7.

[0056] In practical use, firstly, the target air gap 23 height is determined according to the required reactance characteristics, and the clamping assembly is released or its clamping effect on the multiple core modules 22 is reduced, allowing the adjusting support 7 to rotate. Then, the drive unit 61 is activated, and the driving force output by the drive unit 61 is transmitted to the multiple adjusting supports 7 via the transmission assembly 62, causing the multiple adjusting supports 7 to rotate relative to the sliding frame 63, and adjusting the support 71 corresponding to the target air gap 23 height to the support position between two adjacent core modules 22.

[0057] During the process of adjusting the support member 7 and switching the support part 71, different support dimensions will cause the distance between two adjacent core modules 22 to change. When the core module 22 moves along the stacking direction, the position of the corresponding air gap 23 changes accordingly. The adjusting support member 7 located in the air gap 23 is guided by the position of the core module 22 and drives the sliding frame 63 to move relative to the structural frame 1 along the stacking direction. Since the transmission component 62 is mounted on the sliding frame 63, it also moves together with the sliding frame 63 and the adjusting support member 7.

[0058] Once the support portion 71 corresponding to the target air gap 23 height reaches the support position, the driving action of the drive portion 61 is stopped, and multiple iron core modules 22 are pressed together along the stacking direction by the clamping assembly. The iron core modules 22 on both sides of the air gap 23 abut against the support portion 71 in the support position, so that the height of the air gap 23 is limited by the support dimension corresponding to the support portion 71. At this time, the sliding frame 63 remains in the position corresponding to the adjusted air gap 23 position, the adjusting support 7 continues to be located within the air gap 23, and the connection relationship between the transmission assembly 62 and each related component remains stable.

[0059] When the height of the air gap 23 needs to be changed again, the clamping action of the clamping assembly is released or reduced, and the drive unit 61 drives the adjusting support 7 to rotate via the transmission assembly 62. As another set of supports 71 enters the supporting position, the height and position of the air gap 23 change again, and the sliding frame 63 moves along the stacking direction with the adjusting support 7 to continue to adapt to the positional change of the air gap 23.

[0060] For example, the sliding frame 63 can be a plate-shaped member, frame-shaped member, ring-shaped member, or other load-bearing structure capable of supporting multiple adjusting supports 7 and transmission components 62. The specific shape of the sliding frame 63 can be determined according to the spatial shape of the area where the air gap 23 is located, the number of adjusting supports 7, and the installation requirements of the transmission components 62, as long as it can provide a rotational mounting position for the adjusting supports 7 and can move relative to the structural frame 1 along the stacking direction of the core modules 22.

[0061] The sliding frame 63 and the structural frame 1 can be slidably connected via mutually cooperating sliding parts. The sliding parts can be disposed on the sliding frame 63, or separately on both the sliding frame 63 and the structural frame 1. Their specific shapes can include guide surfaces extending along the stacking direction, sliding grooves, sliding protrusions, or other structures capable of restricting the movement direction of the sliding frame 63. The above structures are only used to illustrate possible forms of the sliding connection and do not limit the specific connection method between the sliding frame 63 and the structural frame 1.

[0062] The multiple adjusting supports 7 can be connected to the sliding frame 63 in a manner that allows the adjusting supports 7 to rotate around their own rotation axis 73. The adjusting supports 7 can be directly rotated with the sliding frame 63, or they can be connected to the sliding frame 63 through a generalized rotating connecting component. As long as the adjusting supports 7 can maintain a predetermined position on the sliding frame 63 and can rotate relative to the sliding frame 63 under the action of driving force, the switching of the support 71 can be achieved.

[0063] The transmission assembly 62 can be integrally mounted on the sliding frame 63, or it can be composed of multiple cooperating transmission components respectively mounted on the sliding frame 63. The connection between the transmission assembly 62 and the drive unit 61 should still be able to transmit driving force when the sliding frame 63 moves along the stacking direction, and the connection between the transmission assembly 62 and the adjusting support 7 should ensure that the adjusting support 7 can still obtain rotational driving force after moving with the sliding frame 63. The specific structural form of the transmission assembly 62 can be set according to the movement form of the drive unit 61 and the arrangement of the adjusting support 7, and this embodiment does not impose specific limitations on this.

[0064] The drive unit 61 includes a drive shaft 611 extending along the stacking direction of the core module 22, and the drive shaft 611 is rotatably connected to the structural frame 1. The transmission assembly 62 includes a first bevel gear 621, a plurality of second bevel gears 622, and a plurality of rotating support shafts 64 corresponding one-to-one with the plurality of adjusting support members 7. The first bevel gear 621 is sleeved on the drive shaft 611 and rotatably connected to the sliding frame 63. The first bevel gear 621 and the drive shaft 611 are slidably connected along the axial direction of the drive shaft 611 and are linkedly connected along the circumferential direction of the drive shaft 611. Multiple rotating support shafts 64 are rotatably connected to the sliding frame 63. One end of each rotating support shaft 64 is connected to the corresponding adjusting support 7, and the other end is connected to the corresponding second bevel gear 622. Multiple second bevel gears 622 mesh with the first bevel gear 621.

[0065] In this embodiment, the drive shaft 611 extends along the stacking direction of the core module 22 and is rotatably connected to the structural frame 1. The structural frame 1 provides a rotational support for the drive shaft 611, enabling the drive shaft 611 to rotate about its own axis relative to the structural frame 1. The drive shaft 611 is used to receive and output rotational driving force, and its extension direction is consistent with the movement direction of the sliding frame 63 relative to the structural frame 1, so that when the sliding frame 63 moves along the stacking direction, the transmission components mounted on the sliding frame 63 can still maintain a transmission engagement with the drive shaft 611.

[0066] The first bevel gear 621 is rotatably connected to the corresponding sliding frame 63 and is sleeved on the drive shaft 611. The first bevel gear 621 can rotate on the sliding frame 63 around the axis of the drive shaft 611, and can also move axially along the drive shaft 611 with the sliding frame 63. The first bevel gear 621 and the drive shaft 611 form an axially sliding and circumferentially linked connection relationship, that is, the first bevel gear 621 can move relative to the drive shaft 611 along the axis of the drive shaft 611, but cannot be disengaged from the rotational drive of the drive shaft 611. When the drive shaft 611 rotates, the drive shaft 611 drives the first bevel gear 621 to rotate around the axis of the drive shaft 611; when the sliding frame 63 moves along the stacking direction of the core module 22, the first bevel gear 621 can move axially with the sliding frame 63 relative to the drive shaft 611.

[0067] Multiple rotating support shafts 64 are rotatably connected to the sliding frame 63. The sliding frame 63 provides rotational support for each rotating support shaft 64 and maintains the relative installation position between each rotating support shaft 64 and the first bevel gear 621. One end of each rotating support shaft 64 is connected to the corresponding adjusting support 7, and the other end is connected to the corresponding second bevel gear 622. Thus, the second bevel gear 622, the rotating support shafts 64, and the adjusting support 7 form an interconnected rotating unit. When the second bevel gear 622 rotates, it drives the corresponding adjusting support 7 to rotate relative to the core module 22 via the rotating support shafts 64.

[0068] Multiple second bevel gears 622 mesh with first bevel gears 621. The first bevel gear 621, acting as a common power input gear, rotates under the drive of drive shaft 611 and transmits driving force to the multiple second bevel gears 622 through meshing with them. The multiple second bevel gears 622 then drive multiple adjusting supports 7 to rotate via their respective rotating support shafts 64. This forms the following power transmission path: The drive shaft 611 drives the first bevel gear 621 to rotate. The first bevel gear 621 drives multiple second bevel gears 622 to rotate through meshing. Each second bevel gear 622 drives the corresponding adjusting support 7 to rotate through the corresponding rotating support shaft 64.

[0069] The first bevel gear 621 and the second bevel gear 622 adopt a meshing bevel gear structure, which can transmit rotation even when the axial directions of the drive shaft 611 and the rotating support shaft 64 are not consistent. The drive shaft 611 is arranged along the stacking direction of the iron core module 22, and the rotating support shaft 64 extends according to the installation position of the adjusting support 7 in the air gap 23. Through the meshing of the first bevel gear 621 and the second bevel gear 622, the rotation of the drive shaft 611 can be converted into the rotation of each rotating support shaft 64, so that the adjusting support 7 set at different positions in the air gap 23 can all obtain rotational driving force.

[0070] The sliding frame 63 carries the first bevel gear 621, multiple second bevel gears 622, and multiple rotating support shafts 64. When the height of the air gap 23 changes, causing the sliding frame 63 to move along the stacking direction of the core module 22, the first bevel gear 621, the second bevel gears 622, and the rotating support shafts 64 move together with the sliding frame 63. Therefore, the meshing relationship between the first bevel gear 621 and the multiple second bevel gears 622, the connection relationship between the second bevel gears 622 and the rotating support shafts 64, and the connection relationship between the rotating support shafts 64 and the adjusting support 7 can all remain stable.

[0071] During the movement of the sliding frame 63 along the stacking direction, the first bevel gear 621 slides axially relative to the drive shaft 611, but the first bevel gear 621 and the drive shaft 611 still maintain circumferential linkage. Therefore, the position change of the sliding frame 63 will not interrupt the path of the drive shaft 611 to transmit rotation to the first bevel gear 621, thus taking into account both the axial following capability and rotational transmission capability of the transmission component 62.

[0072] For example, the drive shaft 611 can be a shaft-shaped member capable of withstanding torque and extending along the stacking direction, the cross-sectional dimensions of which can be determined according to the driving force to be transmitted. The drive shaft 611 can be installed with the structural frame 1 through a rotating connection structure that allows the drive shaft 611 to rotate about its own axis, as long as the drive shaft 611 can rotate stably under the support of the structural frame 1.

[0073] The first bevel gear 621 can have a ring-shaped or wheel-shaped structure and is provided with a shaft hole through which the drive shaft 611 passes. The first bevel gear 621 and the sliding frame 63 can be connected by a mounting structure that can restrict the axial disengagement of the first bevel gear 621 while allowing it to rotate relative to the sliding frame 63. The axial sliding and circumferential linkage relationship between the first bevel gear 621 and the drive shaft 611 can be achieved by a mating structure that can simultaneously meet the requirements of axial guidance and circumferential force transmission. This embodiment does not further specify the mating structure.

[0074] The second bevel gear 622 can be fixedly connected to the rotary support shaft 64, or other connection methods can be used to keep the second bevel gear 622 and the rotary support shaft 64 rotating synchronously. The rotary support shaft 64 and the adjusting support 7 can also be fixedly connected, detachably connected, or a combination of connections that can transmit rotation, as long as the rotation of the second bevel gear 622 can be transmitted to the adjusting support 7 via the rotary support shaft 64.

[0075] The dimensions, number of teeth, and meshing position of the first bevel gear 621 and the second bevel gear 622 can be determined according to the number and arrangement range of the adjusting support members 7 within the air gap 23 and the required rotation speed. Each second bevel gear 622 can have the same structural parameters so that multiple adjusting support members 7 have corresponding rotation states; provided that the support part 71 with the same support size can reach the support position, each second bevel gear 622 can also adopt corresponding dimensions or installation postures according to the installation position.

[0076] The drive shaft 611 is provided with a guide groove 6231 extending axially along the drive shaft 611. The first bevel gear 621 is provided with a central hole through which the drive shaft 611 passes. A guide block 6232 is provided on the wall of the central hole. The guide block 6232 extends into the guide groove 6231 and slides in cooperation with the guide groove 6231, so that the first bevel gear 621 can move relative to the drive shaft 611 along the axial direction of the drive shaft 611, and rotate with the drive shaft 611 through the circumferential limiting cooperation between the guide block 6232 and the guide groove 6231.

[0077] In this embodiment, the drive shaft 611 extends along the stacking direction of the core module 22 and passes through the central hole of the first bevel gear 621. The size of the central hole of the first bevel gear 621 is adapted to the drive shaft 611, allowing the first bevel gear 621 to be fitted onto the outside of the drive shaft 611 and to move axially relative to the drive shaft 611. A fitting space is maintained between the drive shaft 611 and the central hole to meet the requirements of axial relative movement, so as to avoid the first bevel gear 621 from jamming with the drive shaft 611 when it moves with the sliding frame 63.

[0078] The guide groove 6231 extends axially along the drive shaft 611, and its extension direction is consistent with the movement direction of the sliding frame 63 relative to the structural frame 1. The guide block 6232 protrudes from the central hole wall of the first bevel gear 621 toward the drive shaft 611 and extends into the guide groove 6231. The groove wall of the guide groove 6231 and the guide block 6232 form a circumferential limiting relationship, preventing the first bevel gear 621 from rotating freely relative to the drive shaft 611; at the same time, the guide groove 6231 provides a sliding path for the guide block 6232 along the axial direction of the drive shaft 611, allowing the guide block 6232 to move along the guide groove 6231 with the first bevel gear 621.

[0079] When the drive shaft 611 rotates, the groove wall of the guide groove 6231 acts on the guide block 6232 along the circumference of the drive shaft 611, transmitting the torque output by the drive shaft 611 to the first bevel gear 621, causing the first bevel gear 621 to rotate around the axis of the drive shaft 611. After the first bevel gear 621 rotates, it transmits the rotation to each of the second bevel gears 622 through meshing with multiple second bevel gears 622. Each second bevel gear 622 then drives the corresponding adjusting support 7 to rotate via the corresponding rotating support shaft 64.

[0080] As the sliding frame 63 moves along the stacking direction of the core module 22, the first bevel gear 621 moves along with the sliding frame 63 due to its rotatable connection with it. At this time, the guide block 6232, located on the wall of the central hole of the first bevel gear 621, slides along the guide groove 6231 on the drive shaft 611, allowing the first bevel gear 621 to generate axial displacement relative to the drive shaft 611. During this axial movement, the guide block 6232 remains within the guide groove 6231, thus ensuring that the circumferential linkage between the first bevel gear 621 and the drive shaft 611 is not interrupted by changes in the position of the first bevel gear 621.

[0081] Thus, the guide groove 6231 and the guide block 6232 together form a mating structure that combines axial guidance and circumferential force transmission. Its axial guiding function allows the first bevel gear 621 to adapt to the position change of the air gap 23 with the sliding frame 63, while its circumferential limiting function allows the drive shaft 611 to continuously transmit torque to the first bevel gear 621, thereby avoiding the problem that the first bevel gear 621 cannot move with the sliding frame 63 when a rigid axial fixed connection is used.

[0082] Specifically, a transmission structure 623 is provided between the drive shaft 611 and the first bevel gear 621. The transmission structure 623 includes a guide groove 6231 and a guide block 6232. The guide groove 6231 extends axially along the drive shaft 611, and the guide block 6232 is disposed on the central hole wall of the first bevel gear 621 and extends into the guide groove 6231, so that the first bevel gear 621 can move axially along the drive shaft 611 and rotate with the drive shaft 611.

[0083] Specifically, when the drive shaft 611 only rotates and the first bevel gear 621 does not need to generate axial displacement, the groove wall of the guide groove 6231 applies a circumferential force to the guide block 6232, causing the first bevel gear 621 to rotate with the drive shaft 611; when the sliding frame 63 drives the first bevel gear 621 to move axially along the drive shaft 611, the guide block 6232 slides along the guide groove 6231, allowing the first bevel gear 621 to change its axial position on the drive shaft 611; when the first bevel gear 621 needs to transmit rotation during axial movement, the guide block 6232 moves along the guide groove 6231 on the one hand, and receives the circumferential driving force transmitted by the groove wall of the guide groove 6231 on the other hand, thereby realizing axial movement and torque transmission simultaneously.

[0084] When adjusting the air gap 23, firstly, the clamping assembly is released or its clamping effect on the multiple iron core modules 22 is reduced, allowing the adjusting support 7 within the air gap 23 to rotate. Then, the drive shaft 611 is rotated relative to the structural frame 1, and the guide groove 6231 on the drive shaft 611 pushes the guide block 6232 in the center hole of the first bevel gear 621 through its groove wall, causing the first bevel gear 621 to rotate synchronously with the drive shaft 611.

[0085] After the first bevel gear 621 rotates, it drives each second bevel gear 622 to rotate through meshing with multiple second bevel gears 622. Each second bevel gear 622 drives multiple adjusting support members 7 to rotate through the corresponding rotating support shaft 64, so that different groups of support parts 71 switch to the support position between two adjacent iron core modules 22 in sequence.

[0086] When the support portion 71 with different support sizes is switched, the distance between two adjacent core modules 22 changes, and the sliding frame 63 connected to the corresponding air gap 23 moves along the stacking direction of the core modules 22 with the position of the air gap 23. The first bevel gear 621 moves synchronously with the sliding frame 63, and the guide block 6232 slides along the axial direction of the drive shaft 611 in the guide groove 6231, thereby enabling the first bevel gear 621 to adjust its axial position.

[0087] During the aforementioned movement, the guide block 6232 remains circumferentially constrained by the wall of the guide groove 6231, allowing the rotation of the drive shaft 611 to continue being transmitted to the first bevel gear 621. Therefore, even if the positions of the sliding frame 63 and the first bevel gear 621 change with the height of the air gap 23, the first bevel gear 621 can maintain its transmission relationship with the drive shaft 611 and continue to drive the adjusting support 7 to rotate via the second bevel gear 622 and the rotating support shaft 64.

[0088] Once the support 71 corresponding to the target air gap 23 height rotates to the support position, the drive shaft 611 stops rotating, and the multiple core modules 22 are re-pressed by the clamping assembly. The core modules 22 on both sides of the air gap 23 abut against the support 71 in the support position, so that the height of the air gap 23 is limited by the support size of the corresponding support 71. At this time, the first bevel gear 621 remains in an axial position adapted to the adjusted air gap 23 position, and the guide block 6232 remains in the guide groove 6231, preserving the transmission connection for subsequent readjustment.

[0089] For example, the guide groove 6231 can be a straight groove extending axially along the drive shaft 611, and its cross-section can be set to a rectangle, trapezoid, arc, or other shape that can form a circumferential limit, depending on the torque to be transmitted and the force on the guide block 6232. The shape of the guide block 6232 is adapted to the guide groove 6231, and a fitting clearance is left in the guide groove 6231 to meet the axial sliding requirements.

[0090] The guide block 6232 can be integrally formed with the first bevel gear 621, or it can be installed as an independent component on the wall of the center hole of the first bevel gear 621. When an independent component is used, the guide block 6232 and the first bevel gear 621 can be fixed by a connection method that can transmit circumferential force, as long as the guide block 6232 can rotate and move axially with the first bevel gear 621.

[0091] The axial length of the guide groove 6231 can be determined based on the maximum stroke of the first bevel gear 621 as it moves with the sliding frame 63, to ensure that the guide block 6232 is always located within the guide groove 6231 within the adjustment range of the air gap 23 height. The dimension of the guide block 6232 along the extension direction of the guide groove 6231 can be determined based on the torque and contact load it needs to withstand, ensuring that the guide block 6232 has sufficient circumferential bearing capacity while avoiding the guide block 6232 being too large and hindering the axial movement of the first bevel gear 621.

[0092] The drive shaft 611, guide block 6232, and first bevel gear 621 can be made of materials that meet the requirements for torque transmission and mechanical strength. The surface of the guide block 6232 that contacts the guide groove 6231 can maintain a surface state suitable for relative sliding to reduce resistance and wear during axial movement of the first bevel gear 621. The above-described shapes, dimensions, materials, and forming methods are illustrative and do not constitute further limitations on this embodiment.

[0093] By providing an axially extending guide groove 6231 on the drive shaft 611 and a guide block 6232 extending into the guide groove 6231 on the central hole wall of the first bevel gear 621, the first bevel gear 621 can continue to receive the torque transmitted by the drive shaft 611 while moving along the stacking direction with the sliding frame 63, thus taking into account both the axial following requirements and the circumferential force transmission requirements of the transmission assembly 62.

[0094] The structural frame 1 is provided with a guide rod 65 extending along the stacking direction of the iron core module 22. The guide rod 65 passes through the sliding frame 63 and is slidably connected to the sliding frame 63. The guide rod 65 is spaced apart from the driving part 61 to guide the sliding frame 63 to move along the stacking direction and restrict the sliding frame 63 from rotating relative to the structural frame 1.

[0095] The structural frame 1 serves as the mounting base for the guide rod 65, maintaining its position relative to the core assembly. The extension direction of the guide rod 65 aligns with the stacking direction of the core modules 22, ensuring that the sliding frame 63 moves in a direction consistent with the change in position of the air gap 23 due to variations in its height. A stable connection is maintained between the guide rod 65 and the structural frame 1, enabling the guide rod 65 to withstand the lateral and rotational forces transmitted by the sliding frame 63 during its movement.

[0096] The sliding frame 63 is provided with a guide engagement portion through which the guide rod 65 passes. The guide rod 65 passes through the guide engagement portion and forms a sliding engagement with the guide engagement portion along the stacking direction. This sliding engagement allows the sliding frame 63 to move relative to the structural frame 1 along the extension direction of the guide rod 65, while restraining the movement of the sliding frame 63 away from this direction to avoid lateral displacement of the sliding frame 63 as the position of the air gap 23 changes.

[0097] The guide rod 65 is also spaced apart from the drive unit 61, so that the guide rod 65 and the drive unit 61 are installed in separate positions on the structural frame 1. The guide rod 65 mainly serves to guide and prevent rotation of the sliding frame 63, while the drive unit 61 is mainly used to provide driving force to the transmission assembly 62. The separation between the two can reduce motion interference and provide relatively stable spatial conditions for the follow-up of the sliding frame 63, the transmission assembly 62, and the adjusting support 7.

[0098] The sliding frame 63 supports the transmission assembly 62 and multiple adjusting supports 7 disposed within the corresponding air gaps 23. The multiple adjusting supports 7 are rotatably connected to the sliding frame 63. The transmission assembly 62 is mounted on the sliding frame 63 and maintains a transmission relationship with the drive unit 61 and the multiple adjusting supports 7. When the height of the air gap 23 changes and its position shifts along the stacking direction of the core modules 22, the adjusting supports 7 and the transmission assembly 62 move together with the sliding frame 63, and the guide rod 65 guides the direction of movement of the sliding frame 63.

[0099] The guide rod 65 restricts the rotation of the sliding frame 63, meaning that when the sliding frame 63 moves along the stacking direction, its installation posture relative to the structural frame 1 remains stable, and it will not arbitrarily deflect around an axis parallel to the stacking direction. Therefore, the transmission assembly 62 and the multiple adjusting supports 7 mounted on the sliding frame 63 can maintain their predetermined relative positions, preventing the adjusting supports 7 from deviating from their corresponding air gaps 23 due to the rotation of the sliding frame 63, or causing a deviation in the transmission position between the transmission assembly 62 and the drive unit 61.

[0100] For example, the guide rod 65 can be a straight rod-shaped component, the length of which is determined according to the required travel of the sliding frame 63 within the adjustment range of the air gap 23, so as to ensure that the guide rod 65 can always maintain a sliding fit with the sliding frame 63 when the sliding frame 63 is in a position corresponding to different air gap 23 heights. The guide rod 65 can be made of a material that can meet the requirements of guiding load and structural strength, and its surface can be set to a surface state suitable for sliding fit, so as to reduce the frictional resistance generated when the sliding frame 63 moves.

[0101] The cross-section of the guide rod 65 can be shaped to allow for axial sliding and circumferential limiting with the sliding frame 63. For example, the cross-section of the guide rod 65 can have a non-circular profile, and the guide fitting portion on the sliding frame 63 can be configured to match this non-circular profile, allowing the sliding frame 63 to move axially along the guide rod 65 without rotating freely relative to it. Rotation restriction can also be achieved between the guide rod 65 and the sliding frame 63 through a sliding fit structure with multiple guide contact surfaces. The above forms are merely examples of achieving axial guidance and anti-rotation functions and do not constitute a limitation on the specific shape of the guide rod 65.

[0102] The guide rod 65 can be directly connected to the structural frame 1, or it can be connected to the structural frame 1 through a mounting part used to maintain the position of the guide rod 65. The guide rod 65 and the structural frame 1 can be fixedly connected or detachably connected, as long as the guide rod 65 can remain stable relative to the structural frame 1 and provide reliable guidance for the sliding frame 63 during its movement.

[0103] The sliding frame 63 and the guide rod 65 can be fitted with a clearance to allow the sliding frame 63 to move smoothly; alternatively, a general-purpose anti-friction component can be installed at the relative sliding position between the two to reduce wear during long-term adjustment. The guide fit clearance should ensure that the sliding frame 63 can move normally while avoiding excessive clearance that would cause significant shaking of the sliding frame 63.

[0104] The outer periphery of the adjusting support 7 is provided with an embedded annular groove 72 extending around the rotation axis 73 of the adjusting support 7. An elastic body 74 is provided in the embedded annular groove 72. The elastic body 74 protrudes from the embedded annular groove 72, and the external dimension of the elastic body 74 along the support direction of the support part 71 in the uncompressed state is greater than the maximum support dimension of each group of support parts 71. Specifically, the adjusting support 7 has an embedded annular groove 72 extending around its rotation axis 73 in its middle. The bottom of the groove 72 is cylindrical and forms the rotation axis 73. The elastic body 74 is annular and sleeved on the outside of the rotation axis 73. The inner circumference of the elastic body 74 is embedded in the embedded annular groove 72, and the outer circumference protrudes from the groove 72, so that the elastic body 74 can elastically abut against the iron core modules 22 on both sides of the air gap 23. The rotation axis 73 is coaxially connected to the rotating support shaft 64. When the rotating support shaft 64 rotates, it drives the adjusting support 7 and the elastic body 74 to rotate synchronously through the rotation axis 73.

[0105] When the clamping assembly releases or reduces the clamping force on the plurality of core modules 22, the elastic body 74 abuts against two adjacent core modules 22 respectively, so that each set of support portions 71 is separated from the two adjacent core modules 22; when the clamping assembly applies clamping force to the plurality of core modules 22, the elastic body 74 is compressed, so that the support portion 71 located at the support position abuts against two adjacent core modules 22 respectively.

[0106] In this embodiment, the adjusting support 7 is disposed within the air gap 23 formed between two adjacent core modules 22 and can rotate relative to the core module 22 under the drive of the driving component 6. The adjusting support 7 has at least two sets of support portions 71, and different sets of support portions 71 have different support dimensions along the stacking direction of the core modules 22 when rotated to the support position between two adjacent core modules 22. By switching the support portion 71 in the support position, the height of the air gap 23 between two adjacent core modules 22 can be changed.

[0107] To facilitate the explanation of the dimensional relationships between the elastic body 74, the air gap 23, and the support 71, the maximum height of the air gap 23 formed by the elastic body 74 after the clamping assembly is released or the clamping force is reduced, supporting two adjacent core modules 22, is denoted as H; the minimum height of the air gap 23 allowed when the elastic body 74 is compressed is denoted as h. Both H and h represent the height of the air gap 23 along the stacking direction between two adjacent core modules 22, not the diameter, thickness, or cross-sectional dimensions of the elastic body 74 itself. The original technical disclosure also defined H and h as the maximum and minimum heights corresponding to the transition of the elastic body 74 supporting the air gap 23.

[0108] Let L be the support dimension corresponding to any group of support parts 71 along the stacking direction of the iron core module 22. Multiple different groups of support parts 71 have different support dimensions, each of which is less than the maximum height H of the air gap 23 and greater than the minimum height h of the air gap 23, i.e., satisfying: h < L < H.

[0109] When the adjusting support 7 is provided with three sets of support portions 71, and the support dimensions corresponding to the three sets of support portions 71 are denoted as L1, L2, and L3 respectively, L1, L2, and L3 are all different. For example, L1 can be the maximum support dimension, and L3 can be the minimum support dimension. In this case, the dimensions can satisfy the following: h < L3 < L2 < L1 < H.

[0110] The terms L1, L2, and L3 mentioned above are only used to illustrate that different groups of support parts 71 have different support dimensions, and do not indicate that the adjusting support 7 must be provided with three groups of support parts 71. When the adjusting support 7 has two or more groups of support parts 71, the support dimensions of each group of support parts 71 can be set according to the above principles. The H and different support dimensions shown in the attached figures are used to indicate the relationship between the unloading height formed by the elastomer 74 and the height of the working air gap 23 formed by each support part 71.

[0111] An embedded annular groove 72 is provided to accommodate and confine the elastic body 74, allowing the elastic body 74 to rotate together with the adjusting support 7 and remain on the outer periphery of the adjusting support 7 during repeated compression and recovery. The embedded annular groove 72 is arranged around the rotation axis 73 of the adjusting support 7, so that when the adjusting support 7 rotates to different angles, the elastic body 74 can form elastic contact between the iron core modules 22 on both sides of the air gap 23.

[0112] The external dimension of the elastic body 74 along the support direction of the support portion 71 in the uncompressed state is larger than the maximum support dimension of each group of support portions 71. Therefore, when the clamping assembly releases or reduces the clamping force applied to the multiple core modules 22, the elastic body 74 recovers outward under its own elastic recovery and abuts against the two core modules 22 on both sides of the air gap 23, thereby increasing the air gap 23 between two adjacent core modules 22.

[0113] When the elastic body 74 supports two adjacent core modules 22 to the maximum height H of the air gap 23, since H is greater than the maximum support size of each set of support parts 71 on the adjusting support member 7, no matter which set of support parts 71 faces the height direction of the air gap 23, each support part 71 will not simultaneously press against the core modules 22 on both sides of the air gap 23. Each set of support parts 71 is thus separated from at least one core module 22, preferably forming a gap with both adjacent core modules 22, thereby relieving the compressive load on the support parts 71 and providing clearance space for the adjustment support member 7 to rotate.

[0114] In the above state, the support portions 71 on the adjusting support 7 are no longer clamped by the two iron core modules 22. When the driving component 6 drives the adjusting support 7 to rotate, it can reduce the friction, scraping, and squeezing forces between the support portions 71 and the iron core modules 22. During the rotation of the adjusting support 7, the elastic body 74 continues to provide elastic support to the two adjacent iron core modules 22, keeping the air gap 23 within the range that allows the support portions 71 to switch positions.

[0115] After a set of support parts 71 corresponding to the target air gap 23 height rotates to the support position, the clamping assembly reapplies clamping force to the multiple core modules 22 along the stacking direction of the core modules 22. Under the action of the clamping force, two adjacent core modules 22 move towards each other and jointly compress the elastic body 74 located in the embedded annular groove 72, so that the height of the air gap 23 gradually decreases from H.

[0116] The elastomer 74 has sufficient compression margin to allow the height of the air gap 23 to decrease toward the minimum height h. Since h is smaller than the minimum support dimension among the sets of support portions 71, the support portions 71 in the support position have already abutted against the two adjacent core modules 22 before the air gap 23 actually decreases to h. The clamping action continued to be applied by the clamping assembly and is borne by the support portions 71 in the support position, so that the actual working air gap 23 height between the two adjacent core modules 22 is limited by the support dimension L corresponding to that set of support portions 71.

[0117] Therefore, h represents the minimum height of the air gap 23 allowed to form after the elastic body 74 is compressed, or the lower limit of the compression stroke, indicating that the elastic body 74 will not prevent any set of support parts 71 from forming contact with two adjacent iron core modules 22; h is not the actual working air gap 23 height that must be reached after the reactor is compressed. The actual air gap 23 height after compression is L, L1, L2 or L3 corresponding to the selected support part 71, not h.

[0118] Multiple core modules 22 are stacked to form an inner core 2. The core assembly also includes an outer core 3 and a bottom core 4. The outer core 3 surrounds the outer side of the inner core 2. The bottom core 4 is located at the same end of the inner core 2 and the outer core 3 along the stacking direction and is magnetically engaged with the inner core 2 and the outer core 3 respectively. A placement space 17 is formed between the inner core 2 and the outer core 3. The coil 5 is disposed in the placement space 17 and sleeved on the outer side of the inner core 2.

[0119] Multiple core modules 22 are arranged sequentially along the stacking direction, forming a relatively stable stacked structure under the action of the clamping assembly. A predetermined distance is maintained between adjacent core modules 22 by adjusting the support member 7, thereby forming air gaps 23 distributed along the stacking direction. The multiple core modules 22 and the air gaps 23 located between adjacent core modules 22 together constitute the inner core 2. This allows the inner core 2 to maintain its magnetic conductivity while increasing the magnetic reluctance of the magnetic circuit through the air gaps 23, thus reducing the possibility of the core entering magnetic saturation prematurely.

[0120] The inner iron core 2, serving as the main magnetically conductive part inside the coil 5, extends in a direction corresponding to the stacking direction of the iron core modules 22. The coil 5 surrounds the inner iron core 2. When the coil 5 is energized, the magnetic field generated by it acts on the inner iron core 2, causing magnetic flux to be transmitted along the inner iron core 2 and the air gap 23 formed within it. By adjusting the height of the air gap 23 between adjacent iron core modules 22 using the air gap 23 adjustment component, the magnetic reluctance of the corresponding magnetic circuit in the inner iron core 2 can be changed, thereby adjusting the inductance and reactance characteristics of the reactor.

[0121] The outer iron core 3 is located outside the inner iron core 2 and is arranged around the inner iron core 2. The outer iron core 3 and the inner iron core 2 are radially spaced apart to form a placement space 17 between them. The outer iron core 3 is used to guide the magnetic flux outside the inner iron core 2, so that the magnetic flux generated by the coil 5 and transmitted through the inner iron core 2 can obtain further magnetic confinement outside the inner iron core 2, thereby helping to reduce the disordered diffusion of magnetic flux to the outside of the reactor.

[0122] The term "encirclement" refers to the outer iron core 3 being arranged around the outer periphery of the inner iron core 2. The outer iron core 3 can be continuously encircling the inner iron core 2, or it can be formed by multiple cooperating magnetically conductive parts, as long as a corresponding magnetically conductive structure can be formed on the outside of the inner iron core 2. The outer iron core 3 and the inner iron core 2 do not directly contact each other, so as to reserve installation space for the coil 5.

[0123] The bottom iron core 4 is located at the same end of the inner iron core 2 and the outer iron core 3 along the stacking direction. A portion of the bottom iron core 4 is magnetically engaged with the corresponding end of the inner iron core 2, and another portion is magnetically engaged with the corresponding end of the outer iron core 3, thereby establishing a magnetic connection between the inner iron core 2 and the outer iron core 3. The magnetic engagement referred to here means that the bottom iron core 4, the inner iron core 2, and the outer iron core 3 are in a relative position and engagement state capable of transmitting magnetic flux, and is not limited to a specific fixing method.

[0124] The bottom iron core 4 guides the magnetic flux transmitted to the corresponding end of the inner iron core 2 and directs at least a portion of the magnetic flux to the outer iron core 3; the outer iron core 3 transmits and constrains the magnetic flux from the outside of the inner iron core 2. Thus, the inner iron core 2, the bottom iron core 4, and the outer iron core 3 cooperate to form a magnetically conductive structure surrounding the coil 5. This magnetically conductive structure helps improve the utilization of the magnetic field generated by the coil 5 and reduces external leakage flux during reactor operation.

[0125] A placement space 17 is formed between the inner iron core 2 and the outer iron core 3. This placement space 17 extends along the outer periphery of the inner iron core 2, with its inner side defined by the inner iron core 2 and its outer side defined by the outer iron core 3. One end near the bottom iron core 4 is defined by the bottom iron core 4. The coil 5 is disposed within the placement space 17 and sleeved on the outer side of the inner iron core 2, such that the coil 5 is located between the inner iron core 2 and the outer iron core 3.

[0126] The coil 5 is sleeved on the outside of the inner iron core 2, meaning that the coil 5 is arranged around at least part of the outer periphery of the inner iron core 2, and the inner iron core 2 is inserted into or housed within the internal area enclosed by the coil 5. The inner side of the coil 5 corresponds to the inner iron core 2, and the outer side of the coil 5 corresponds to the outer iron core 3, so that the magnetic field generated by the coil 5 can simultaneously form an electromagnetic interaction with both the inner iron core 2 and the outer iron core 3.

[0127] The positional relationship between the inner iron core 2, outer iron core 3, bottom iron core 4, and coil 5 allows coil 5 to be arranged within an area enclosed by multiple magnetically conductive components. The inner iron core 2 is located close to the inside of coil 5 to concentrate and guide the magnetic flux inside coil 5; the outer iron core 3 is located on the outside of coil 5 to guide the magnetic flux outside coil 5; the bottom iron core 4 forms a magnetically conductive connection at the same end of the inner iron core 2 and outer iron core 3, thereby enabling the magnetically conductive components to cooperate with each other.

[0128] The clamping assembly includes a holding member, a pressing member, and an adjusting member. The holding member extends along the stacking direction of the core modules 22, and one end of the holding member is connected to the structural frame 1. The pressing member is movably connected to the holding member and abuts against one end of the core assembly along the stacking direction. The adjusting member is adjustablely connected to the holding member and abuts against the side of the pressing member away from the core assembly, so that the position of the adjusting member relative to the holding member can be adjusted to drive the pressing member to move toward the structural frame 1 and clamp the multiple core modules 22.

[0129] In this embodiment, the clamping assembly includes a holding member, a pressing member, and an adjusting member. Specifically, the holding member can be an insulating pull rod 13, the pressing member can be a pressure plate 16, and the adjusting member can be a clamping member 75. The insulating pull rod 13 extends along the stacking direction of the core modules 22, and one end of the insulating pull rod 13 is connected to the structural frame 1; the pressure plate 16 is movably connected to the insulating pull rod 13 and abuts against one end of the core assembly along the stacking direction; the clamping member 75 is adjustablely connected to the insulating pull rod 13 and abuts against the side of the pressure plate 16 opposite to the core assembly. By adjusting the position of the clamping member 75 relative to the insulating pull rod 13, the pressure plate 16 can be pushed towards the structural frame 1 to clamp multiple core modules 22 along the stacking direction of the core modules 22.

[0130] In this embodiment, one end of the holding member is connected to the structural frame 1, and the remaining part of the holding member extends along the stacking direction of the core module 22 to the outer side of the corresponding end of the core assembly. The structural frame 1 is used to support one end of the core assembly along the stacking direction, and at the same time provides a stable connection and force-bearing foundation for the holding member. When the clamping assembly applies a clamping force to the core assembly, the holding member bears the clamping action transmitted by the adjusting member and transmits the corresponding force to the structural frame 1.

[0131] The clamping member is movably connected to the pulling member, allowing the clamping member to move relative to the pulling member along the stacking direction of the core module 22. The clamping member is located at the end of the core assembly opposite to the structural frame 1 and abuts against that end of the core assembly. The clamping member is used to receive the force applied by the adjusting member and transmit the force to the core assembly along the stacking direction of the core module 22.

[0132] When the clamping member abuts against the core assembly, its abutment area corresponds to the end of the core assembly along the stacking direction, so that the clamping action applied by the clamping member can be transmitted to multiple sequentially stacked core modules 22. Through the action of the clamping member, the adjustment action generated by the adjusting member at a local position can be converted into a clamping action acting on the end of the core assembly, reducing the possibility that the clamping load is concentrated on a local core module 22.

[0133] The adjusting member is adjustablely connected to the holding member and is located on the side of the pressing member opposite to the core assembly. The side of the adjusting member facing the core assembly abuts against the pressing member. When the adjusting member is adjusted relative to the holding member in the direction toward the structural frame 1, the adjusting member pushes the pressing member to move along the holding member toward the structural frame 1, and the pressing member then presses against the end of the core assembly in the stacking direction.

[0134] The other end of the core assembly is supported on the structural frame 1, so that when the clamping member moves toward the structural frame 1, multiple core modules 22 are clamped between the clamping member and the structural frame 1. As the adjusting member continues to move, the clamping member can apply a gradually increasing clamping force to the core assembly, and this clamping force is transmitted sequentially along the stacking direction of the multiple core modules 22.

[0135] After the air gap 23 adjustment assembly has rotated the target support 71 to the support position between two adjacent core modules 22, the adjustment member presses down on multiple core modules 22 through the holding member, causing the core modules 22 on both sides of the air gap 23 to move toward the corresponding support 71. When two adjacent core modules 22 abut against the support 71 in the support position, the pressing load is transmitted along the stacking direction through the core modules 22 and the adjustment support 7.

[0136] At this point, the clamping member, the multiple core modules 22, the adjusting support member 7 located within the air gap 23, and the structural frame 1 form a force transmission relationship along the stacking direction. The support part 71 in the supporting position limits the distance between two adjacent core modules 22 by its corresponding support size, and the adjusting member keeps the multiple core modules 22 pressed by maintaining the position of the clamping member, thereby keeping each air gap 23 at the corresponding height.

[0137] For example, the outer periphery of the insulating rod 13 is provided with a threaded connection portion, the clamping member 75 is threadedly connected to the insulating rod 13, and the pressure plate 16 is sleeved on the insulating rod 13 and can move along the insulating rod 13. When the clamping member 75 is rotated, the clamping member 75 moves along the extension direction of the insulating rod 13 and pushes the pressure plate 16 toward the core assembly, so that the core assembly is pressed between the pressure plate 16 and the structural frame 1; when the clamping member 75 is rotated in the opposite direction, the pressing force of the clamping member 75 on the pressure plate 16 is reduced, so as to release or reduce the clamping force applied by the clamping assembly to the core assembly.

[0138] This embodiment further describes the overall installation and internal layout of the adjustable air gap 23 reactor based on the aforementioned embodiments. Furthermore, the structural frame 1 is used to support the core assembly, coil 5, air gap 23 adjustment assembly, and clamping assembly. Exemplarily, the structural frame 1 may include a base 14, an insulating cylinder 11 surrounding the base 14, and an insulating top cover 12 disposed at the end of the insulating cylinder 11. The insulating cylinder 11 and the insulating top cover 12 together form an installation space for accommodating the aforementioned components. The core assembly is supported on the base 14, and a pad 15 may be provided between the core assembly and the base 14 to form a stable support and installation interval.

[0139] Multiple core modules 22 are sequentially arranged along the stacking direction to form an inner core 2. Each core module 22 can have a radial structure, and an operating channel 21 extending along the stacking direction is formed at the center of the inner core 2. An insulating layer 18 is provided on the outer periphery of the inner core 2. The coil 5 is wound or sleeved on the outside of the insulating layer 18, so that the insulating layer 18 is located between the coil 5 and the inner core 2 to achieve electrical isolation and provide mounting support for the coil 5. An outer core 3 surrounds the coil 5 and the inner core 2, and the bottom core 4 is magnetically engaged with both the inner core 2 and the outer core 3.

[0140] At least a portion of the drive assembly 6 and the transmission assembly 62 are disposed within the operating channel 21. Specifically, the drive shaft 611 extends along the operating channel 21, and the sliding frame 63 corresponding to each air gap 23 and the transmission assembly 62 are disposed within the operating channel 21. The rotary support shaft 64 extends from the operating channel 21 to the corresponding air gap 23 and connects to the adjusting support 7 disposed within the air gap 23. By disposing of these components within the operating channel 21, the space occupied by the air gap 23 adjusting assembly in the placement space 17 between the inner core 2 and the outer core 3 can be reduced, resulting in a more compact arrangement of the coil 5 and the transmission structure 623.

[0141] The coil 5 has a connector end for connecting to an external circuit, which can be connected to a branched connector 51. One end of the branched connector 51 is electrically connected to the coil 5, and the other end is used for electrical connection to an external circuit, forming multiple conductive branches to disperse the current at the connector location of the coil 5 and reduce the possibility of localized heating caused by current concentration.

[0142] During assembly, the bottom iron core 4 and multiple iron core modules 22 are first placed on the base 14 to form an inner iron core 2 with an operating channel 21. Then, an insulating layer 18 and a coil 5 are placed on the outside of the inner iron core 2, and an outer iron core 3 is placed around the outside of the coil 5. Next, the drive assembly 6, transmission assembly 62, and adjusting support 7 are installed correspondingly within the operating channel 21 and the air gap 23. Finally, the structural frame 1 is fixed, and the coil 5 is connected to the forked connector 51. Thus, while maintaining electrical insulation and structural stability, the iron core assembly, coil 5, and air gap 23 adjusting assembly can be centrally arranged.

[0143] This embodiment, based on the aforementioned embodiments, further explains the application process of the adjustable reactor with air gap 23 in high-voltage insulation testing.

[0144] This adjustable air-gap reactor (23) can be connected to an external test circuit and used in conjunction with the test specimen to achieve compensation, current limiting, or resonance in the test circuit. The test specimen can be a high-capacity cable, capacitive equipment, or other electrical equipment requiring high-voltage insulation testing.

[0145] Before testing, the target reactance characteristics required by the reactor are determined based on the parameters of the test sample and the testing requirements, and the corresponding target air gap 23 height is further determined. Subsequently, the reactor is placed in an adjustment state where it is not powered on, and the clamping force of the clamping assembly on the multiple iron core modules 22 is released or reduced, allowing the adjusting support 7 to rotate within the air gap 23.

[0146] The drive assembly 6 drives the adjustment support 7 to rotate, so that a set of support parts 71 corresponding to the height of the target air gap 23 rotates to the support position between two adjacent iron core modules 22; then the clamping assembly clamps the multiple iron core modules 22 again, so that the iron core modules 22 on both sides of the air gap 23 abut against the support parts 71 in the support position respectively, and the height of the air gap 23 is limited by the support size corresponding to the set of support parts 71.

[0147] After the air gap 23 is adjusted, the coil 5 is connected to the external test circuit through the forked connector 51, and the external test circuit is connected to the test sample. After the external test circuit is started, the coil 5 generates a magnetic field, and the iron core assembly and the air gap 23 together form a corresponding magnetic circuit state, so that the reactor generates a reactance in the test circuit corresponding to the height of the target air gap 23.

[0148] During the test, the output voltage, output current, or test frequency of the external test circuit can be adjusted according to the test requirements. When it is necessary to change the reactance characteristics of the reactor, first stop or reduce the output of the external test circuit, then release or reduce the clamping effect of the clamping component, switch to another set of support parts 71 through the drive component 6, and continue the test after re-clamping the iron core module 22.

[0149] Through the above process, without disassembling the core assembly or replacing the spacer components of different thicknesses, the reactance characteristics of the reactor can be adjusted according to different test samples and test stages, thereby simplifying the adjustment process of the test equipment, and maintaining the air gap 23 height stability with the cooperation of the clamping assembly and the support part 71.

[0150] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0151] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air-gap adjustable reactor, characterized in that, This includes the structural frame, core assembly, coil, air gap adjustment assembly, and clamping assembly; The core assembly is supported on the structural frame. The core assembly includes a plurality of core modules stacked sequentially along a preset direction. An air gap is formed between two adjacent core modules. The coil is arranged around at least a portion of the core assembly. The air gap adjustment assembly includes a drive assembly and at least one adjustment support member. The adjustment support member is disposed in the air gap and is rotatable relative to the iron core module. The adjustment support member has at least two sets of support parts. Each set of support parts has different support dimensions along the stacking direction of the iron core modules when it rotates to the support position between two adjacent iron core modules. The drive assembly is connected to the adjusting support member for driving the adjusting support member to rotate, so that the different groups of support parts can be selectively rotated to the support position, and the height of the air gap can be adjusted by the support parts located at the support position. The clamping assembly is connected to the structural frame and abuts against one end of the iron core assembly along the stacking direction. The other end of the iron core assembly along the stacking direction is supported on the structural frame. The clamping assembly is used to cooperate with the structural frame to clamp multiple iron core modules along the stacking direction, so that the support part located at the support position abuts against two adjacent iron core modules respectively, and the height of the air gap is limited by the support dimension corresponding to the support part.

2. The air-gap adjustable reactor according to claim 1, characterized in that, At least one of the air gaps is provided with a plurality of the adjusting supports, which are spaced apart along the circumference of the core module.

3. The air-gap adjustable reactor according to claim 1, characterized in that, The drive assembly includes a drive unit and a transmission assembly. The drive unit is connected to multiple adjustable support members within the same air gap via the transmission assembly to synchronously drive the multiple adjustable support members to rotate, so that the support members with the same support size among the multiple adjustable support members rotate synchronously to the support position.

4. The air-gap adjustable reactor according to claim 1, characterized in that, The air gap adjustment assembly further includes a sliding frame corresponding to the air gap on which the plurality of adjustment supports are provided. The sliding frame is slidably connected to the structural frame along the stacking direction of the core module. The plurality of adjustment supports are rotatably connected to the sliding frame. The transmission assembly is disposed on the sliding frame and is pulsatorically connected to the drive unit and the plurality of adjustment supports, so that the transmission assembly and the plurality of adjustment supports move along the stacking direction with the sliding frame.

5. The air-gap adjustable reactor according to claim 4, characterized in that, The drive unit includes a drive shaft extending along the stacking direction of the core module, and the drive shaft is rotatably connected to the structural frame; The transmission assembly includes a first bevel gear, a plurality of second bevel gears, and a plurality of rotary support shafts corresponding one-to-one with the plurality of adjusting support members. The first bevel gear is sleeved on the drive shaft and rotatably connected to the sliding frame. The first bevel gear is slidably connected to the drive shaft along the axial direction of the drive shaft and is linkedly connected along the circumferential direction of the drive shaft. Multiple rotating support shafts are rotatably connected to the sliding frame. One end of each rotating support shaft is connected to the corresponding adjusting support, and the other end is connected to the corresponding second bevel gear. All of the multiple second bevel gears mesh with the first bevel gear.

6. The air-gap adjustable reactor according to claim 5, characterized in that, The drive shaft is provided with a guide groove extending along the axial direction of the drive shaft. The first bevel gear is provided with a central hole through which the drive shaft passes. A guide block is provided on the wall of the central hole. The guide block extends into the guide groove and slides in cooperation with the guide groove, so that the first bevel gear can move relative to the drive shaft along the axial direction of the drive shaft, and rotate with the drive shaft through the circumferential limiting cooperation between the guide block and the guide groove.

7. The air-gap adjustable reactor according to claim 4, characterized in that, The structural frame is provided with a guide rod extending along the stacking direction of the iron core modules. The guide rod passes through the sliding frame and is slidably connected to the sliding frame. The guide rod is spaced apart from the driving part to guide the sliding frame to move along the stacking direction and restrict the sliding frame from rotating relative to the structural frame.

8. The air-gap adjustable reactor according to claim 1, characterized in that, The outer periphery of the adjusting support is provided with an embedded annular groove extending around the rotation axis of the adjusting support. An elastic body is provided in the embedded annular groove. The elastic body protrudes from the embedded annular groove, and the external dimension of the elastic body along the support direction of the support part in the uncompressed state is greater than the maximum support dimension of each group of the support parts. When the clamping assembly releases or reduces the clamping force on the plurality of core modules, the elastic body abuts against two adjacent core modules respectively, so that each set of support parts is separated from the two adjacent core modules; when the clamping assembly applies clamping force to the plurality of core modules, the elastic body is compressed, so that the support part located at the support position abuts against two adjacent core modules respectively.

9. The air-gap adjustable reactor according to claim 1, characterized in that, Multiple core modules are stacked to form an inner core. The core assembly also includes an outer core and a bottom core. The outer core surrounds the outer side of the inner core. The bottom core is located at the same end of the inner core and the outer core along the stacking direction and is magnetically engaged with the inner core and the outer core, respectively. A placement space is formed between the inner iron core and the outer iron core, and the coil is disposed within the placement space and sleeved on the outside of the inner iron core.

10. The air-gap adjustable reactor according to claim 1, characterized in that, The clamping assembly includes a holding member, a pressing member, and an adjusting member. The holding member extends along the stacking direction of the core modules, and one end of the holding member is connected to the structural frame. The pressing member is movably connected to the holding member and abuts against one end of the core assembly along the stacking direction. The adjusting member is adjustablely connected to the holding member and abuts against the side of the pressing member away from the core assembly, so that the position of the adjusting member relative to the holding member can be adjusted to drive the pressing member to move toward the structural frame and clamp the multiple core modules.

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