Inductor and transformer combination

Abstract

The application provides an inductor and transformer combined mechanism, relates to the technical field of power distribution system equipment manufacturing, and comprises an inductor component and a transformer component. The inductor component comprises a first iron core and a plurality of copper sheet windings arranged along the outer periphery of the first iron core at intervals. The transformer component comprises a second iron core and a plurality of copper sheet rings arranged along the outer periphery of the second iron core at intervals. The copper sheet windings are inserted into a first conductive support in a radial direction, the copper sheet rings are inserted into a second conductive support in an axial direction, and the first conductive support and the second conductive support are connected. In order to improve the stability of the copper sheet structure under electrical impact, a fixing component is arranged on the second conductive support. The fixing component comprises an adjusting piece and a pressing piece. The pressing piece can be switched to a first state or a second state under the action of the adjusting piece. In the first state, the pressing piece is accommodated in the support. In the second state, the pressing piece limits the radial movement of the copper sheet windings and the axial movement of the copper sheet rings. The application can enhance the reliability of electrical connection and the anti-deformation ability.

Description

Technical Field

[0001] This invention relates to the field of power distribution system equipment manufacturing technology, and in particular to an inductor and transformer combination mechanism. Background Technology

[0002] Currently, traditional transformers have limited current carrying capacity, making it difficult to meet demand. Furthermore, traditional inductor components employ a coil winding structure, which is compact with small heat dissipation windows, hindering heat dissipation and reducing current carrying capacity. Therefore, Chinese Patent CN111599581A discloses an inductor and transformer combination mechanism. By combining copper sheet windings and coil windings in the transformer, it increases heat dissipation gaps and winding space, and simplifies the structure using center and side terminals. This solves the problems of limited current carrying capacity and poor heat dissipation in traditional transformers, achieving support for high power and high current while ensuring electrical safety.

[0003] Through research, the applicant found that although the above-mentioned existing technology can improve the heat dissipation effect and current carrying capacity of the transformer, the copper sheet winding and coil winding are prone to deformation under the condition of transformer short circuit, which leads to low mechanical strength and stability of the winding in the axial and radial directions, and ultimately increases the failure rate of the transformer. Summary of the Invention

[0004] This application discloses an inductor and transformer combination mechanism to solve the technical problem in the related art that copper sheet windings and coil windings are easily deformed by short circuits.

[0005] In a first aspect, this application provides an inductor and transformer combination mechanism, which adopts the following technical solution:

[0006] An inductor and transformer assembly includes an inductor assembly and a transformer assembly. The inductor assembly includes a first iron core and copper sheet windings, with multiple sets of copper sheet windings wound at intervals around the outer periphery of the first iron core. The transformer assembly includes a second iron core and copper sheet rings, with multiple sets of copper sheet rings wound at intervals around the outer periphery of the second iron core.

[0007] It also includes a first conductive support and a second conductive support, wherein the copper sheet winding is radially inserted into the first conductive support, and the copper sheet ring is axially inserted into the second conductive support;

[0008] It also includes a fixing component, which includes an adjusting member and a pressing member disposed on the second conductive support. The pressing member has a first state and a second state under the action of the adjusting member. When the pressing member is in the first state, the pressing member is housed in the second conductive support. When the pressing member is in the second state, the pressing member is configured to restrict the radial movement of the copper sheet winding on the first conductive support and to restrict the axial movement of the copper sheet ring on the second conductive support.

[0009] Preferably, the first conductive support has a radial plug plate, and the radial plug plate has a set on each of the radial sides of the first iron core. The radial plug plate has a plurality of radial plug holes along its own length direction. The copper sheet winding has a first lead end, and the first lead end passes through the radial plug hole in the radial direction relative to the first iron core.

[0010] Preferably, the second conductive bracket has an axial insertion post, which is close to and parallel to the radial insertion plate. The copper ring has a second lead-out end, which has a sleeve hole. The second lead-out end is sleeved and engaged with the axial insertion post through the sleeve hole.

[0011] Preferably, the number of copper sheet windings is configured as 'a', and the number of copper sheet rings is configured as 'b', where a = 2b;

[0012] The second lead of one of the copper strip rings corresponds to the first lead of two adjacent copper strip windings, and the two adjacent first leads pass through radial insertion holes and are attached to the upper and lower surfaces of the corresponding second lead.

[0013] Preferably, the adjusting member includes an insulating rod, and the axial insertion post has a through insertion groove along its own length direction, the insulating rod being inserted into the insertion groove, wherein...

[0014] When the insulating rod is inserted from top to bottom along the length of the insertion slot, the pressing member automatically switches from the first state to the second state;

[0015] When the insulating insert retracts from the bottom to the top along the length of the insertion slot, the pressing member automatically switches from the second state to the first state.

[0016] Preferably, the extrusion member includes an insulating sliding block, and the axial insertion post has a plurality of sliding holes, the sliding holes being perpendicularly connected to the insertion slot, the insulating sliding block being slidably inserted into the sliding hole, and one insulating sliding block corresponding to one first lead-out end;

[0017] The end of the insulating plug is provided with an active inclined pushing surface, and the end of the insulating sliding block located in the insertion groove is provided with a passive inclined pushing surface. The active inclined pushing surface is configured to slide and fit against the passive inclined pushing surface when the insulating plug is inserted from top to bottom along the length direction of the insertion groove, so as to push the end of the insulating sliding block away from the insertion groove out of the sliding hole and fit against the surface of the first lead-out end opposite to the second lead-out end.

[0018] Preferably, the extrusion member further includes a spring and a connecting block. The inner sidewall of the sliding hole has a side groove, which is connected to and parallel to the sliding hole. The connecting block is disposed on the sidewall of the insulating sliding block and extends into the side groove. One end of the spring is connected to the connecting block and the other end is connected to the inner endwall of the side groove. The spring is configured to always have a tendency to radially push the insulating sliding block toward the insertion slot.

[0019] Preferably, the insulating sliding block includes an insulating sliding portion and an insulating abutment portion. The insulating abutment portion rotates relative to the insulating sliding portion via a torsion spring. The torsion spring is configured to always have a tendency to rotate the insulating abutment portion away from the insulating sliding portion.

[0020] When the extruder is in the first state, the insulating sliding block is inside the sliding hole, and the insulating abutment part, under the restriction of the inner wall of the sliding hole, overcomes the torque of the torsion spring and fits against the insulating sliding part;

[0021] When the extruder is in the second state, the insulating sliding block moves to the outside of the sliding hole and the insulating abutment completely slides out of the sliding hole. Under the torsion of the torsion spring, the insulating abutment rotates away from the insulating sliding part and abuts against the surface of the first lead-out end opposite to the second lead-out end, so as to generate a preload force acting between the first lead-out end and the second lead-out end.

[0022] Preferably, the inner wall of the sliding hole is covered with a polytetrafluoroethylene layer.

[0023] Preferably, the surface of the first lead is covered with an insulating rubber layer, and the first lead is axially attached to the surface of the second lead through the insulating rubber layer.

[0024] The present invention has the following advantages and beneficial effects:

[0025] By integrating the inductor and transformer components into a single structure, employing a configuration of a first iron core with copper sheet windings and a second iron core with copper sheet rings, and further supplemented by radial and axial connections between the first and second conductive supports, a compact and robust electromagnetic device assembly is constructed. Furthermore, a fixing component is provided on the second conductive support, comprising an adjusting member and a linked pressing member. The pressing member can switch between a first and a second state under the drive of the adjusting member. In the second state, it can simultaneously restrict the radial position of the copper sheet windings on the first conductive support and the axial position of the copper sheet rings on the second conductive support, thus enhancing the mechanical fixation capability of the connected conductive components during operation. This technical solution, by optimizing the insertion direction and fixing method between the conductive components and the conductive support, improves the structure's ability to withstand short-circuit current impacts to a certain extent, reduces the possibility of conductor displacement or deformation due to electrodynamic forces, and thus benefits the inductor and transformer assembly's resistance to electrodynamic stress, electrical operational stability, and overall mechanical reliability. By rationally designing the arrangement and spacing of the copper sheets and the matching method of the bracket, the heat dissipation path can be improved, the risk of local temperature rise can be reduced, and technical support can be provided for the long-term stable operation of the equipment under high power density or high current conditions. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the inductor and transformer combination mechanism in the embodiment of this application, used to illustrate the extrusion member in the first state;

[0028] Figure 2 This embodiment of the application is used to illustrate the overall structural diagram of the inductor and transformer combination mechanism when the extrusion is in the second state;

[0029] Figure 3 yes Figure 1 Enlarged view of part A in the image;

[0030] Figure 4 yes Figure 2 Enlarged view of part B in the image.

[0031] The diagram is marked as follows:

[0032] 1. Inductor assembly; 11. First iron core; 12. Copper sheet winding; 121. First lead-out terminal; 2. Transformer assembly; 21. Second iron core; 22. Copper sheet ring; 221. Second lead-out terminal; 2211. Sleeve hole; 3. First conductive support; 31. Radial plug plate; 311. Radial plug hole; 4. Second conductive support; 41. Axial plug post; 411. Plug groove; 412. Sliding hole; 4121. Side groove; 5. Fixing assembly; 6. Adjusting component; 61. Insulating plug rod; 611. Active inclined push surface; 7. Extrusion component; 71. Insulating sliding block; 711. Passive inclined push surface; 712. Insulating sliding part; 713. Insulating abutment part; 72. Spring; 73. Connecting block; 8. Torsion spring; 9. Insulating rubber layer. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0034] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0035] Some embodiments of this application provide an inductor and transformer combination mechanism. (Refer to...) Figure 1 , Figure 2 The combined mechanism includes an inductor assembly 1 and a transformer assembly 2. Specifically, the inductor assembly 1 includes a first iron core 11 and multiple sets of copper sheet windings 12. The copper sheet windings 12 are arranged at intervals around the outer periphery of the first iron core 11, thereby providing heat dissipation space while maintaining electromagnetic characteristics. The transformer assembly 2 includes a second iron core 21 and multiple sets of copper sheet rings 22. The copper sheet rings 22 are arranged at intervals along the outer periphery of the second iron core 21, and the separate copper sheet arrangement enhances the dispersion of the current carrying path and heat dissipation.

[0036] Furthermore, to enhance structural strength and short-circuit withstand capability, the overall assembly mechanism is further equipped with a first conductive support 3 and a second conductive support 4. The copper sheet winding 12 is connected to the first conductive support 3 via radial insertion, and the copper sheet ring 22 is connected to the second conductive support 4 via axial insertion. This insertion structure helps to form a relatively stable connection during operation and facilitates assembly and disassembly.

[0037] It is understandable that, in order to improve the mechanical stability of the combined mechanism under sudden short-circuit current and enhance the axial and radial positioning performance of the copper sheet winding 12 and the copper sheet ring 22, a fixing component 5 is provided on the second conductive support 4. The fixing component 5 includes an adjusting component 6 and a pressing component 7, and the adjusting component 6 and the pressing component 7 form an operable linkage relationship. The pressing component 7 has two working states: a first state and a second state. In the first state, the pressing component 7 is completely housed within the structural space of the second conductive support 4, without affecting the axial insertion of the copper sheet ring 22 into the second conductive support 4, thereby maintaining the ease of insertion and electrical connection integrity of the transformer assembly 2 during the initial assembly process; in the second state, the pressing component 7 deforms or moves under the control of the adjusting component 6, thereby applying a restraining force simultaneously to the radial direction of the copper sheet winding 12 and the axial direction of the copper sheet ring 22. This bidirectional confinement structure can enhance the positioning performance of the copper sheet winding 12 and the copper sheet ring 22 under short-circuit impact loads to a certain extent, thereby improving the radial and axial mechanical strength of the overall inductance and transformer assembly, and thus reducing the deformation risk of the winding structure.

[0038] It is worth noting that the copper sheet winding 12 is in a radially inserted state in the structure, and its radial deformation is easily caused by electrodynamic forces under short-circuit conditions; while the copper sheet ring 22 is inserted axially, and the attraction force caused by the short-circuit current can easily cause its displacement or warping in the axial direction. In this context, the setting of the fixing component 5 allows a single structural component, namely the pressing component 7, to simultaneously restrict the position of both directions under the control of the adjusting component 6. This compensates to some extent for the inadequacy of restricting only the insertion direction, and helps to improve the overall operating stability and short-circuit resistance of the winding system. The design of the fixing component 5 avoids copper sheet warping or displacement caused by overcurrent during high-power operation of the transformer, while maintaining the reliability of the conductive path, which is beneficial to improving the electrical and mechanical reliability of the entire structure.

[0039] Furthermore, to avoid potential ambiguity in the above structure, the copper sheet winding 12 refers to a conductive copper flat strip or sheet conductor made with a certain thickness and width, which is arranged at preset intervals around the outer periphery of the first iron core 11; the copper sheet ring 22 refers to a copper conductive sheet set in a ring shape around the outer periphery of the second iron core 21 and inserted into the second conductive bracket 4 in the axial direction. In the insertion method, radial insertion means that the conductive element is inserted into the slot or fixing groove of the bracket structure in the radial direction, and axial insertion means that the conductive element is inserted into the corresponding slot of the conductive bracket in a direction parallel to the center line of the iron core.

[0040] In some implementations, combined with Figure 1 , Figure 2 The first conductive support 3 specifically includes two sets of radial insertion plates 31 respectively disposed on both radial sides of the first iron core 11. Each set of radial insertion plates 31 has multiple radial insertion holes 311 along its length for structural connection with the copper sheet winding 12. The copper sheet winding 12 is configured with a first lead-out end 121, which is inserted into the radial insertion hole 311 along the radial direction of the first iron core 11, thereby forming a stable radial insertion relationship in structure. The radial insertion plates 31 are arranged vertically, and their extension direction is consistent with the axial direction of the first iron core 11. Therefore, when the first lead-out end 121 is inserted into the radial insertion hole 311, its deformation or displacement space in the axial direction is restricted by the hole wall. This structural design is beneficial to keeping the first lead-out end 121 relatively fixed in the axial direction, thereby improving the positioning reliability and connection stability of the winding during operation. However, since the first lead-out terminal 121 still has some space for movement in the radial direction when inserted, it may deform or shift in the radial direction during a short-circuit current surge. This radial deformation is suppressed to some extent by the extrusion member 7 in the combined structure. The radial insertion hole 311 not only improves the modularity of the connection but also enhances the positioning capability of the conductor lead-out terminal in the insertion direction. The first lead-out terminal 121 refers to the copper sheet-like part extending from the copper sheet winding 12 for electrical connection, and the insertion hole refers to the structural hole provided through the insertion plate to accommodate the lead-out terminal. This structure improves assembly efficiency and connection reliability while also providing a working basis for the radial fit of the subsequent extrusion member 7, thereby enabling the inductor and transformer combination mechanism to have higher stability in the face of short-circuit impact loads.

[0041] In some implementations, combined with Figure 1 , Figure 3The second conductive support 4 is provided with an axial insertion post 41. The axial insertion post 41 is positioned close to one of the radial insertion plates 31 on the first conductive support 3, and is parallel to the extending direction of the radial insertion plates 31. Furthermore, the copper ring 22 is provided with a second lead-out end 221. The second lead-out end 221 has a sleeve hole 2211 for mating with the axial insertion post 41. Specifically, the sleeve hole 2211 is fitted over the axial insertion post 41 to form a stable axial insertion relationship.

[0042] It is understandable that the design of this structure is beneficial to enhancing the positioning capability of the copper strip ring 22 in the axial direction and limiting its axial displacement caused by electrodynamic or thermal stress during transformer operation. The parallel arrangement of the axial insertion post 41 and the radial insertion plate 31 contributes to the compactness and rationality of the structural wiring, and also gives the copper strip winding 12 and the copper strip ring 22 a certain degree of symmetry in spatial position, which facilitates the unified application of mechanical limits or the use of other fixing components 5 to achieve the stability of the composite structure. The second lead-out end 221 refers to the end area extended from the copper strip ring 22 for electrical connection, and the sleeve hole 2211 is a through hole or through sleeve structure opened at this end for positioning the insertion post. The insertion fit refers to a non-permanent mechanical connection formed by sliding.

[0043] With this structural design, the copper ring 22 can be electrically connected without relying on welding or fasteners, and has anti-radial displacement performance, further improving the structural stability and operational reliability of the overall transformer assembly under high current short-circuit impact conditions.

[0044] In some implementations, such as Figure 2 , Figure 4 As shown, the number of copper sheet windings 12 is set to a, and the number of copper sheet rings 22 is set to b, and the quantity relationship a=2b is satisfied, that is, each copper sheet ring 22 corresponds to two copper sheet windings 12.

[0045] Furthermore, the copper sheet winding 12 is provided with a first lead-out end 121, and the copper sheet ring 22 is provided with a second lead-out end 221. During the insertion process, the two adjacent first lead-out ends 121 pass through the radial insertion holes 311 provided on the radial insertion plate 31 and then attach to the upper and lower surfaces of the second lead-out end 221 respectively, thereby forming a structural combination with an upper and lower covering function.

[0046] It is understood that in this structure, the first lead-out end 121, under the constraint of the first conductive support 3, has strong deformation resistance in the axial direction, meaning it is not prone to significant bending or displacement in the axial direction. However, due to its structural characteristics and insertion method, the second lead-out end 221 has a certain deformation space in the axial direction. Therefore, by attaching the two first lead-out ends 121, which are located vertically and have high axial rigidity, to the upper and lower surfaces of the second lead-out end 221, a preliminary axial constraint can be provided for the second lead-out end 221 at the structural level, thereby limiting its axial movement tendency to a certain extent.

[0047] Thus, this structural combination is beneficial in improving the axial stress stability of the second lead 221 of the copper strip ring 22 under short circuit or stress conditions of the transformer, thereby indirectly enhancing the mechanical stability and electrical connection reliability of the entire combination structure.

[0048] It is worth noting that the specific bonding method can be surface bonding or line bonding. The contact area is determined according to the width and position of the lead-out end, and combined with the arrangement of the sockets, the upper and lower lead-out ends have a relatively consistent contact pressure distribution, thereby further improving the confinement effect. In terms of structural explanation, the first lead-out end 121 refers to the conductive segment extending from the copper sheet winding 12, used to insert into the radial socket 311 and make electrical connections. The second lead-out end 221 is the conductive part extending from the copper sheet ring 22, sleeved on the axial plug post 41 and made electrical connections through it. Bonding refers to the local connection or adjacency of the two in a tight contact manner between their surfaces, thereby forming a structural attachment relationship. Through this symmetrical distribution and quantity ratio setting, the mechanical fit between the copper sheet winding 12 and the copper sheet ring 22 can be made more reasonable, improving the device's resistance to structural deformation under electrical impact or short-circuit stress while maintaining a simple assembly structure.

[0049] In some implementations, combined with Figure 1 , Figure 3 The adjusting member 6 includes an insulating rod 61. An insertion groove 411 is provided through the axial insertion post 41 along its length direction, and the insulating rod 61 is inserted into the insertion groove 411. The insertion direction of the insulating rod 61 is from top to bottom. When the insulating rod 61 is inserted from top to bottom along the insertion groove 411, the pressing member 7 automatically switches from the first state to the second state; when the insulating rod 61 is withdrawn from bottom to top along the insertion groove 411, the pressing member 7 automatically switches from the second state to the first state.

[0050] For example, the extrusion member 7 includes an insulating sliding block 71, which is slidably inserted into a sliding hole 412 provided in the axial insertion post 41. Multiple sliding holes 412 are provided on the axial insertion post 41. Each sliding hole 412 is perpendicularly connected to the insertion groove 411, and each sliding hole 412 is provided with an insulating sliding block 71. After sliding out of the sliding hole 412, it corresponds to a first lead-out end 121. Furthermore, the insulating sliding block 71 has a passive inclined pushing surface 711 at one end of the insertion groove 411, and the end of the insulating rod 61 has an active inclined pushing surface 611. When the insulating rod 61 is inserted downwards, the active inclined pushing surface 611 gradually comes into contact with the passive inclined pushing surface 711, generating a thrust during insertion. This thrust has an outward component, thereby pushing the insulating sliding block 71 to slide along the length of the sliding hole 412 toward the end away from the insertion groove 411, until part of its structure protrudes from one end of the sliding hole 412 and comes into contact with the surface of the first lead-out end 121 away from the second lead-out end 221. In this structure, the insulating sliding block 71 not only provides structural support for the first lead-out end 121 during contact, but also restricts the deformation of the second lead-out end 221 in the axial direction to a certain extent, forming a preliminary axial limiting structure for the copper ring 22.

[0051] For example, refer to Figure 3 , Figure 4 A side groove 4121, communicating with and parallel to the sliding hole 412, is provided on the inner wall of the sliding block. A connecting block 73 is fixed to the side wall of the sliding block, extending into the side groove 4121. One end of the spring 72 is fixed to the connecting block 73, and the other end is connected to the inner end wall of the side groove 4121, forming a set of reset structures that cause the sliding block to tend to move towards the insertion slot 411. The spring 72 undergoes tensile deformation during the process of the sliding block being pushed out of the sliding hole 412, thereby storing elastic potential energy. When the insulating rod 61 exits the insertion slot 411, that is, when the active inclined pushing surface 611 and the passive inclined pushing surface 711 are no longer in contact, the reset force of the spring 72 is immediately released, pushing the connecting block 73 and thus causing the sliding block to return to the direction of the insertion slot 411 and re-enter the sliding hole 412. The entire sliding block returns from the extended state to the hidden state, which is conducive to the smooth disengagement of the copper ring 22 from the axial insertion post 41, avoiding mechanical jamming or electrical connection interference.

[0052] Under normal conditions, i.e., when the insulating rod 61 is not inserted or the rod is not deeply inserted into the pushing section, the sliding block is completely housed at the junction of the sliding hole 412 and the insertion slot 411, keeping the internal space clean and avoiding accidental contact with the copper ring 22 and its lead-out end or affecting the assembly accuracy. The contact between the active inclined pushing surface 611 and the passive inclined pushing surface 711 is a sliding contact, not a rigid engagement. The contact angle can be adjusted through design optimization to change the magnitude of the thrust and the sliding block's push-out speed, thereby adapting to lead-out end fits with different thicknesses or elasticity requirements.

[0053] Based on this, the above structure possesses excellent state-switching capabilities. The insulating rod 61 serves as the control medium, and its insertion and removal operations do not rely on additional tools, allowing direct manual control of the state changes of the extruded component 7. Simultaneously, the sliding block extends outward through an inclined plane, forming a partial surface contact with the lead-out end, thus providing a certain degree of structural support for the second lead-out end 221 in the axial direction. Combined with the quantity matching relationship and contact method between the copper ring 22 and the copper winding 12, the copper ring 22 can also be radially and axially clamped as a whole. This helps to mitigate the tendency of the lead-out end to local warping or displacement caused by electrodynamic stress under short-circuit conditions, thereby enhancing the overall structure's deformation suppression capability under high voltage or strong pulse current. Furthermore, the insertion and removal process of this structure is limited by the physical position change of the insulating rod 61, preventing the sliding block from detaching itself during assembly, thus improving the controllability of the operation and structural safety. During the recovery process of the extruded component 7, the rebound force of the spring 72 is coordinated with the sliding path of the connecting block 73 to ensure that the sliding block can return to the preset position smoothly and without jamming, providing convenient conditions for subsequent disassembly and maintenance. While meeting the mechanical strength requirements, the overall structure, through the reasonable coordination of the insulating structural components, effectively balances the dual functions of electrical isolation and mechanical support.

[0054] In some implementations, such as Figure 3 , Figure 4 As shown, the insulating sliding block 71 is composed of an insulating sliding part 712 and an insulating abutment part 713, which are connected by a torsion spring 8 to form a relative rotation structure. The torsion spring 8 is located at the connection position between the insulating sliding part 712 and the insulating abutment part 713 and is configured to always have a tendency to rotate the insulating abutment part 713 away from the insulating sliding part 712. Further, the insulating sliding block 71 is slidably disposed along the sliding hole 412 in the axial insertion post 41. The outer shape of the insulating sliding part 712 matches the inner cavity of the sliding hole 412. In the normal storage state, the insulating abutment part 713 and the insulating sliding part 712 fit together to form an integral structure, and its overall size is adapted to the through hole size of the sliding hole 412, so that the extrusion 7 is completely placed in the sliding hole 412 in the first state. In this state, due to the restriction of the inner wall of the sliding hole 412 on the insulating abutment 713, the insulating abutment 713 cannot rotate freely. Its fit can overcome the torsion of the torsion spring 8 to a certain extent, so that the insulating sliding block 71 can be smoothly accommodated without affecting the overall stability of the plug-in structure.

[0055] When the extrusion member 7 changes from the first state to the second state through the insertion operation of the insulating rod 61, the insulating sliding block 71 partially slides out of the sliding hole 412 under the pushing action of the active inclined pushing surface 611. At this time, the insulating abutment part 713 is also fully exposed from the opening end of the sliding hole 412. Since the sliding hole 412 no longer provides inner wall constraint to it, the torsion spring 8 begins to release torque to push the insulating abutment part 713 to rotate in a direction away from the insulating sliding part 712. Finally, the insulating abutment part 713 unfolds relative to the insulating sliding part 712 around its torsion spring 8 connection point and turns to the surface of the first lead-out end 121 away from the second lead-out end 221 to fit together. When an insulating sliding block 71 is provided on each of the upper and lower sides of a second lead-out end 221 in the structure, and the insulating contact portion 713 of each insulating sliding block 71 rotates in the corresponding direction under the aforementioned torque and presses against the surface of the first lead-out end 121 away from the second lead-out end 221, a pair of cooperative clamping structures will be formed between the two insulating contact portions 713, thereby acting on the two first lead-out ends 121 and one second lead-out end 221 clamped therebetween. This clamping structure can, to a certain extent, generate a reaction force and provide a pre-tightening force on the two first lead-out ends 121 and one second lead-out end in the axial direction, which is beneficial to strengthening the axial fit stability between the second lead-out end 221 and the first lead-out end 121.

[0056] Furthermore, since the insulating contact portion 713 ultimately abuts against the surface of the first lead-out end 121 away from the second lead-out end 221, it not only helps to axially limit the second lead-out end 221, but also structurally resists the radial deformation tendency of the first lead-out end 121 that may occur due to external forces, thus constraining the first lead-out end 121 in the radial direction. Especially when the inductor or transformer is under short-circuit or high-current impact conditions, the copper sheet ring 22 may deform in the axial or radial direction due to instantaneous electrodynamic force. The presence of the insulating contact portion 713 can, to a certain extent, limit the displacement of the first lead-out end 121 through the clamping effect, thereby enhancing the structural retention capability of the copper sheet winding 12 under complex load conditions and improving the stability and safety of the entire assembly mechanism under extreme conditions.

[0057] Furthermore, the torsion of the torsion spring 8 should be lower than the restoring force of the spring 72 that drives the insulating sliding block 71 to move, so as to ensure that when the insulating rod 61 exits the insertion slot 411, the spring 72 can smoothly pull the insulating sliding block 71 back to its initial position along the sliding hole 412. Even if the insulating abutment part 713 expands outward to form a structural support under the torsion of the torsion spring 8, the reaction of the torsion spring 8 will not hinder the overall retraction of the insulating sliding block 71. During the retraction process, the insulating sliding block 71 can use the inner wall of the sliding hole 412 to restrict the insulating abutment part 713 again, thereby causing the insulating abutment part 713 to re-fit against the surface of the insulating sliding part 712, return to its original state, and remain stable after the sliding block is re-accommodated into the sliding hole 412.

[0058] It should be noted that the rotational connection between the insulating sliding part 712 and the insulating abutment part 713 can be a hinge-type or pin-type structure, or other connection methods that have relative rotation function and can accommodate the torsion spring 8. The size and unfolding angle of the insulating abutment part 713 should be reasonably set according to the size of the first lead-out end 121 and the position of its mating surface, so as to provide a pre-tightening effect while avoiding interference caused by excessive outward extension. This structure maintains efficient limiting capability while also taking into account the assembly tolerance compensation requirements between components, providing a beneficial guarantee for the consistency and reliability of the overall assembly. Therefore, the structural design of using the insulating sliding block 71 combined with the torsion spring 8 is beneficial to achieve effective switching between the first state and the second state, and in the second state, the bidirectional unfolding structure achieves a higher level of clamping and limiting of the lead-out end of the copper sheet ring 22, so that the entire inductor and transformer combination mechanism has stronger structural stability when subjected to extreme electrical or mechanical loads.

[0059] In some embodiments, the inner wall of the sliding hole 412 is covered with a polytetrafluoroethylene layer, which can reduce the contact friction between the sliding hole 412 and the insulating sliding block 71 and improve the smoothness of sliding.

[0060] In some implementations, such as Figure 3 , Figure 4 An insulating rubber layer 9 is provided on the surface of the first lead-out end 121. The insulating rubber layer 9 is closely attached to the outer surface of the first lead-out end 121 and covers the area that cooperates with the second lead-out end 221 along its bonding direction, so that when the first lead-out end 121 is axially bonded to the surface of the second lead-out end 221, the insulating rubber layer 9 forms a contact interface.

[0061] It is understood that the insulating rubber layer 9 is made of a polymer rubber material with good electrical insulation properties and moderate flexibility, such as silicone rubber, fluororubber, or other industrial-grade insulating rubber materials. This material not only provides stable electrical isolation but also adapts to the slight morphological differences in the contact surface through a certain degree of flexible deformation, thereby improving the stability and tightness of the fit between the first lead 121 and the second lead 221. Since the first lead 121 does not directly contact the second lead 221 with metal but is bonded through the intermediate insulating rubber layer 9, even if there is a voltage difference between the two ends during operation, current can be prevented from directly conducting to the other lead along the bonding interface to a certain extent. This reduces the risk of faults such as current backflow, short circuit, or partial discharge, and is beneficial to improving the safety and insulation performance of the entire inductor and transformer assembly under high-voltage operating conditions.

[0062] Furthermore, the thickness of the insulating rubber layer 9 can be designed and adjusted according to the required withstand voltage level. Its thickness range should ensure that the insulation strength requirements are met without interfering with the assembly of the structural components, providing a certain degree of flexibility in structural design. It is suitable for inductor and transformer combination systems of different models or voltage levels. In this structure, the term "covering" refers to the application of a covering material to the surface of the lead-out terminals by means of wrapping or adhesion. This term has a broad scope, encompassing various preparation methods such as molding, coating, and thermal bonding. While maintaining electrical insulation functionality, material optimization can further enhance heat resistance, moisture resistance, and corrosion resistance, thereby maintaining stable performance in complex electrical environments. The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An inductor and transformer combination, characterized by, The application relates to an inductor, which comprises an inductive component (1) and a transformer component (2), the inductive component (1) comprises a first iron core (11) and copper sheet windings (12), a plurality of groups of the copper sheet windings (12) are arranged at intervals on the periphery of the first iron core (11), the transformer component (2) comprises a second iron core (21) and a copper sheet ring (22), and a plurality of groups of the copper sheet ring (22) are arranged at intervals on the periphery of the second iron core (21). The inductor further comprises a first conductive support (3) and a second conductive support (4) connected to each other, the copper sheet windings (12) are inserted into the first conductive support (3) in the radial direction, and the copper sheet ring (22) is inserted into the second conductive support (4) in the axial direction. The inductor further comprises a fixing component (5), the fixing component (5) comprises an adjusting piece (6) arranged on the second conductive support (4) and a pressing piece (7), the pressing piece (7) has a first state and a second state under the action of the adjusting piece (6), when the pressing piece (7) is in the first state, the pressing piece (7) is accommodated in the second conductive support (4), when the pressing piece (7) is in the second state, the pressing piece (7) is configured to limit the radial movement of the copper sheet windings (12) on the first conductive support (3) and limit the axial movement of the copper sheet ring (22) on the second conductive support (4). The first conductive support (3) is provided with radial insertion plates (31) on both sides of the radial direction of the first iron core (11), a plurality of radial insertion holes (311) are arranged on the radial insertion plates (31) along the length direction of the radial insertion plates (31), the copper sheet windings (12) are provided with first lead-out ends (121), and the first lead-out ends (121) pass through the radial insertion holes (311) in the radial direction of the first iron core (11). The second conductive support (4) is provided with an axial insertion column (41) which is parallel to the radial insertion plates (31), the copper sheet ring (22) is provided with a second lead-out end (221) which is provided with a sleeve hole (2211), and the second lead-out end (221) is sleeved with the axial insertion column (41) through the sleeve hole (2211).

2. An inductor and transformer combination according to claim 1, wherein, The number of the copper sheet windings (12) is a, and the number of the copper sheet ring (22) is b, wherein a=2b. The second lead-out end (221) of one copper sheet ring (22) corresponds to the first lead-out ends (121) of two adjacent copper sheet windings (12), and the first lead-out ends (121) pass through the radial insertion holes (311) and are attached to the upper and lower surfaces of the second lead-out end (221).

3. The inductor and transformer combination of claim 1, wherein, The adjusting piece (6) comprises an insulating insertion rod (61), an insertion groove (411) is arranged on the axial insertion column (41) along the length direction of the axial insertion column (41), and the insulating insertion rod (61) is inserted into the insertion groove (411), When the insulating insertion rod (61) is inserted into the insertion groove (411) from top to bottom along the length direction of the insertion groove (411), the pressing piece (7) is automatically switched from the first state to the second state. When the insulating rod (61) retracts from the bottom to the top along the length of the insertion groove (411), the pressing member (7) automatically switches from the second state to the first state.

4. An inductor and transformer combination according to claim 3, wherein, The extrusion member (7) includes an insulating sliding block (71). The axial insertion post (41) has a plurality of sliding holes (412) in it. The sliding holes (412) are vertically connected to the insertion groove (411). The insulating sliding block (71) is slidably inserted into the sliding hole (412), and one insulating sliding block (71) corresponds to one first lead-out end (121). The end of the insulating rod (61) is provided with an active inclined pushing surface (611), and the end of the insulating sliding block (71) located in the insertion groove (411) is provided with a passive inclined pushing surface (711). The active inclined pushing surface (611) is configured to slide against the passive inclined pushing surface (711) when the insulating rod (61) is inserted from top to bottom along the length direction of the insertion groove (411), so as to push the end of the insulating sliding block (71) away from the insertion groove (411) out of the sliding hole (412) and fit against the surface of the first lead-out end (121) away from the second lead-out end (221).

5. An inductor and transformer combination according to claim 4, wherein, The extrusion member (7) also includes a spring (72) and a connecting block (73). The inner wall of the sliding hole (412) has a side groove (4121). The side groove (4121) is connected to and parallel to the sliding hole (412). The connecting block (73) is disposed on the side wall of the insulating sliding block (71) and extends into the side groove (4121). One end of the spring (72) is connected to the connecting block (73) and the other end is connected to the inner end wall of the side groove (4121). The spring (72) is configured to always have a tendency to radially push the insulating sliding block (71) toward the insertion slot (411).

6. An inductor and transformer combination according to claim 4, wherein, The insulating sliding block (71) includes an insulating sliding portion (712) and an insulating abutment portion (713). The insulating abutment portion (713) rotates relative to the insulating sliding portion (712) via a torsion spring (8). The torsion spring (8) is configured to always have a tendency to rotate the insulating abutment portion (713) away from the insulating sliding portion (712). When the extruder (7) is in the first state, the insulating sliding block (71) is inside the sliding hole (412), and the insulating abutment part (713) overcomes the torque of the torsion spring (8) and fits against the insulating sliding part (712) under the restriction of the inner wall of the sliding hole (412); When the extruder (7) is in the second state, the insulating sliding block (71) partially moves outside the sliding hole (412) and the insulating abutment (713) completely slides out of the sliding hole (412). The insulating abutment (713) rotates away from the insulating sliding block (712) under the torsion of the torsion spring (8) and abuts against the surface of the first lead-out end (121) away from the second lead-out end (221) to generate a preload force acting between the first lead-out end (121) and the second lead-out end (221).

7. The inductor and transformer combination of claim 4, wherein, The inner wall of the sliding hole (412) is covered with a polytetrafluoroethylene layer.

8. An inductor and transformer combination according to any one of claims 1 to 7, wherein, The surface of the first lead-out end (121) is covered with an insulating rubber layer (9), and the first lead-out end (121) is axially attached to the surface of the second lead-out end (221) through the insulating rubber layer (9).

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