Inductor and transformer combined mechanism

Abstract

The invention provides an inductor and transformer combined mechanism, and relates to the technical field of power distribution system equipment manufacturing, the inductor and transformer combined mechanism comprises an inductor assembly and a transformation assembly, the inductor assembly comprises a first iron core and a plurality of groups of copper sheet windings wound along the periphery of the first iron core at intervals, and the transformation assembly comprises a second iron core and a plurality of groups of copper sheet rings wound along the periphery of the second iron core at intervals. The copper sheet winding is inserted into the first conductive support in a radial mode, the copper sheet ring is inserted into the second conductive support in an axial mode, and the first conductive support is connected with the second conductive support. In order to improve the stability of the copper sheet structure under electrical impact, the second conductive support is provided with a fixing assembly, the fixing assembly comprises an adjusting part and an extrusion part, and the extrusion part can be switched to a first state or a second state under the action of the adjusting part. In the first state, the extrusion piece is contained in the support. And in the second state, the extrusion piece limits the radial movement of the copper sheet winding and the axial movement of the copper sheet ring, and the reliability and deformation resistance of electrical connection can be enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution system equipment manufacturing, and in particular to an inductor and transformer combination mechanism. Background Art

[0002] Currently, conventional transformers have a low current carrying capacity, making it difficult to meet demand. Furthermore, conventional inductor components utilize a compact coil winding structure with a small heat dissipation window, which is not conducive to heat dissipation and increasing current carrying capacity. Therefore, Chinese patent application number CN111599581A discloses an inductor and transformer combination. By combining copper sheet windings and coil windings in the transformer to increase heat dissipation clearance and winding space, and simplifying the structure with center and side terminals, this solves the problems of low current carrying capacity and poor heat dissipation of conventional transformers, achieving high power and high current support and electrical safety.

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

[0004] The present application discloses an inductor and transformer combination structure to solve the technical problem in the related art that copper sheet windings and coil windings are easily deformed due to short circuit.

[0005] In a first aspect, the present application provides an inductor and transformer combination mechanism, which adopts the following technical solution: An inductor and transformer combination structure includes an inductor component and a transformer component, wherein the inductor component includes a first iron core and copper sheet windings, wherein a plurality of copper sheet windings are wound around the periphery of the first iron core at intervals; and the transformer component includes a second iron core and copper sheet rings, wherein a plurality of copper sheet rings are wound around the periphery of the second iron core at intervals; It also includes a first conductive bracket and a second conductive bracket, the copper sheet winding is radially plugged into the first conductive bracket, and the copper sheet ring is axially plugged into the second conductive bracket; It also includes a fixing component, which includes an adjusting member and an extruding member provided on the second conductive bracket, and the extruding member has a first state and a second state under the action of the adjusting member; wherein, when the extruding member is in the first state, the extruding member is received in the second conductive bracket; when the extruding member is in the second state, the extruding member is configured to limit the radial movement of the copper sheet winding on the first conductive bracket, and to limit the axial movement of the copper sheet ring on the second conductive bracket.

[0006] Preferably, the first conductive bracket has a radial plug-in plate, and the radial plug-in plate is provided with a group on both sides of the radial direction of the first iron core, and the radial plug-in plate is provided with a plurality of radial sockets along its own length direction. The copper sheet winding has a first lead-out end, and the first lead-out end passes through the radial socket relative to the radial direction of the first iron core.

[0007] Preferably, the second conductive bracket has an axial plug-in column, which is close to the radial plug-in plate and parallel to each other. The copper ring has a second lead-out end, which is provided with a sleeve hole. The second lead-out end is sleeved and fitted with the axial plug-in column through the sleeve hole.

[0008] Preferably, the number of the copper sheet windings is configured as a, the number of the copper sheet rings is configured as b, wherein a = 2b; The second lead-out end of one copper sheet ring corresponds to the first lead-out ends of two adjacent copper sheet windings, and the two adjacent first lead-out ends fit with the upper and lower surfaces of the corresponding second lead-out ends after passing through the radial jacks.

[0009] Preferably, the adjusting member includes an insulating plug rod, and the axial plug column is provided with a plug slot along its length direction, and the insulating plug rod is inserted into the plug slot, wherein, When the insulating rod is inserted from top to bottom along the length direction of the insertion slot, the extrusion member automatically switches from the first state to the second state; When the insulating plug is withdrawn from bottom to top along the length direction of the plug slot, the extrusion piece automatically switches from the second state to the first state.

[0010] Preferably, the extrusion piece includes an insulating sliding block, a plurality of sliding holes are opened in the axial plug-in column, the sliding holes are vertically connected to the plug-in slot, the insulating sliding block is slidably inserted in the sliding holes, and one insulating sliding block corresponds to one first lead-out end; An active oblique pushing surface is provided at the end of the insulating plug rod, and a passive oblique pushing surface is provided at one end of the insulating sliding block located in the plug-in slot. The active oblique pushing surface is configured to slide and fit with the passive oblique pushing surface when the insulating plug rod is inserted from top to bottom along the length direction of the plug-in slot, so as to push the end of the insulating sliding block away from the plug-in slot out of the sliding hole and fit with the surface of the first lead end facing away from the second lead end.

[0011] Preferably, the extrusion piece also includes a spring and a connecting block, the inner side wall of the sliding hole has a side groove, the side groove is connected to and parallel to the sliding hole, the connecting block is arranged on the side wall 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 end wall of the side groove, and the spring is configured to always have a tendency to radially push the insulating sliding block toward the side of the plug-in slot.

[0012] Preferably, the insulating sliding block includes an insulating sliding portion and an insulating abutting portion, the insulating abutting portion rotates relative to the insulating sliding portion via a torsion spring, and the torsion spring is configured to always have a tendency to rotate the insulating abutting portion away from the insulating sliding portion, wherein, When the extrusion piece is in the first state, the insulating sliding block is in the sliding hole, and the insulating abutment portion, under the restraining action of the inner wall of the sliding hole, overcomes the torsion force of the torsion spring and fits with the insulating sliding portion; When the extrusion piece is in the second state, the insulating sliding block partially moves to the outside of the sliding hole and the insulating abutment completely slides out of the sliding hole. The insulating abutment rotates away from the insulating sliding part under the torsion force of the torsion spring and abuts against the surface of the first lead-out end away from the second lead-out end, so as to generate a pre-tightening force acting between the first lead-out end and the second lead-out end.

[0013] Preferably, the inner wall of the sliding hole is covered with a polytetrafluoroethylene layer.

[0014] Preferably, the surface of the first lead-out end is covered with an insulating rubber layer, and the first lead-out end is axially bonded to the surface of the second lead-out end through the insulating rubber layer.

[0015] The present invention has the following advantages and beneficial effects: By integrating the inductor and transformer components into a single structure, employing a configuration in which a first iron core is coupled to a copper winding and a second iron core is coupled to a copper ring, and supplemented by radial and axial electrical connections between the first and second conductive brackets, a compact and securely connected electromagnetic device is constructed. Furthermore, a fixing assembly is provided on the second conductive bracket, comprising an adjusting member and an extrusion member coupled thereto. The extrusion member is driven by the adjusting member to switch between a first state and a second state. In the second state, the extrusion member simultaneously restricts the radial position of the copper winding on the first conductive bracket and the axial position of the copper ring on the second conductive bracket, thereby enhancing the mechanical fixation of the plugged-in conductive components during operation. By optimizing the insertion direction and fixing method between the conductive component and the conductive bracket, this technical solution improves the structure's ability to withstand short-circuit current surges and reduces the possibility of conductor displacement or deformation due to electrodynamic forces, thereby improving the inductor and transformer combination's resistance to electrodynamic stress, electrical operational stability, and overall mechanical reliability. By rationally designing the layout spacing of the copper sheets and the coordination of the brackets, 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of the inductor and transformer combination mechanism used to illustrate the extrusion member in the first state in the embodiment of the present application; Figure 2 A schematic diagram of the overall structure of the inductor and transformer combination mechanism used to illustrate the extrusion member in the second state in the embodiment of the present application; Figure 3 yes Figure 1 A magnified view of part A in FIG; Figure 4 yes Figure 2 Enlarged view of part B in .

[0018] The following are marked in the figure: 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. Hole; 3. First conductive bracket; 31. Radial plug board; 311. Radial plug hole; 4. Second conductive bracket; 41. Axial plug column; 411. Plug slot; 412. Sliding hole; 4121. Side slot; 5. Fixing assembly; 6. Adjusting member; 61. Insulating plug rod; 611. Active oblique push surface; 7. Extrusion member; 71. Insulating sliding block; 711. Passive oblique push surface; 712. Insulating sliding portion; 713. Insulating abutment portion; 72. Spring; 73. Connecting block; 8. Torsion spring; 9. Insulating rubber layer. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0020] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0021] Some embodiments of the present application provide an inductor and transformer combination mechanism. Figure 1 、 Figure 2 The combined structure includes an inductor assembly 1 and a transformer assembly 2. Specifically, the inductor assembly 1 comprises a first core 11 and multiple sets of copper sheet windings 12, which are arranged in a spaced arrangement around the periphery of the first core 11, thereby maintaining electromagnetic properties while providing space for heat dissipation. The transformer assembly 2 comprises a second core 21 and multiple sets of copper sheet rings 22, which are arranged in a spaced arrangement around the periphery of the second core 21. The copper sheet arrangement is separated to enhance the dispersion of the current carrying path and heat dissipation.

[0022] Furthermore, to enhance structural strength and short-circuit resistance, the overall assembly is further configured with a first conductive bracket 3 and a second conductive bracket 4. The copper sheet winding 12 is radially plugged into the first conductive bracket 3, while the copper sheet ring 22 is axially plugged into the second conductive bracket 4. This plug-in structure ensures a relatively stable connection during operation and facilitates assembly and disassembly.

[0023] It can be understood that in order to improve the mechanical stability of the combined mechanism when it is subjected to sudden short-circuit currents and to enhance the axial and radial positioning performance of the copper sheet winding 12 and the copper sheet ring 22, a fixing assembly 5 is provided on the second conductive bracket 4. The fixing assembly 5 includes an adjusting member 6 and an extruding member 7. An operable linkage relationship is formed between the adjusting member 6 and the extruding member 7. The extruding member 7 has two working modes: a first state and a second state. In the first state, the extruding member 7 is entirely accommodated in the structural space of the second conductive bracket 4, without affecting the axial insertion of the copper sheet ring 22 to the second conductive bracket 4, thereby maintaining the plug-in convenience and electrical connection integrity of the transformer assembly 2 during the initial installation process; in the second state, the extruding member 7 is deformed or moved under the control of the adjusting member 6, thereby applying a limiting force to the radial direction of the copper sheet winding 12 and the axial direction of the copper sheet ring 22 at the same time. This bidirectional restriction structure can enhance the positioning performance of the copper sheet winding 12 and the copper sheet ring 22 under short-circuit impact load to a certain extent, thereby improving the radial and axial mechanical strength of the overall inductor and transformer combination structure, and further reducing the deformation risk of the winding structure.

[0024] It is worth noting that the copper sheet winding 12 is in a radially plugged-in state in the structure, and its radial deformation is easily caused by the action of electrodynamic force in the case of a short circuit; while the copper sheet ring 22 is plugged in axially, the attraction caused by the short-circuit current can easily cause its displacement or warping in the axial direction. In this context, through the provision of the fixing component 5, a structural member, namely the extrusion member 7, can simultaneously restrict the position of the above two directions under the control of the adjustment member 6, thereby compensating to a certain extent for the problem of insufficient restriction of a single plug-in direction, and helping to improve the operating stability and short-circuit resistance of the overall winding system. The design of the fixing component 5 avoids the warping or displacement of the copper sheet caused by overcurrent when the transformer is operating at high power, while maintaining the reliability of the conductive path, which is beneficial to improving the electrical safety and mechanical reliability of the entire structure.

[0025] To avoid ambiguity in the above structure, the copper sheet winding 12 refers to a conductive copper flat bar or sheet conductor of a certain thickness and width, arranged at predetermined intervals around the periphery of the first core 11. The copper sheet ring 22 refers to a copper conductive sheet arranged in a ring shape around the periphery of the second core 21 and axially plugged into the second conductive support 4. In terms of plug-in connection, radial plug-in refers to the insertion of the conductive component into the slot or fixing groove of the support structure in the radial direction, while axial plug-in refers to the insertion of the conductive component into the corresponding slot of the conductive support in a direction parallel to the centerline of the core.

[0026] In some embodiments, combined with Figure 1 、 Figure 2The first conductive bracket 3 specifically includes two groups of radial plug-in plates 31, respectively arranged on both radial sides of the first iron core 11. Each group of radial plug-in plates 31 is provided with multiple radial sockets 311 along its length, which are used to achieve structural connection with the copper sheet winding 12. The copper sheet winding 12 is provided with a first lead-out end 121 during construction. The first lead-out end 121 is inserted into the radial sockets 311 along the radial direction of the first iron core 11, thereby forming a stable radial plug-in relationship in structure. The radial plug-in 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 sockets 311, its deformation or displacement space in the axial direction is limited by the socket wall. This structural setting is beneficial for maintaining a relatively fixed state of the first lead-out end 121 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 a certain amount of room for movement in the radial direction when it is inserted, it may be deformed or offset in the radial direction when a short-circuit current impact occurs, and this radial deformation is suppressed to a certain extent by the extrusion 7 in the combined structure. The provision of the radial jack 311 not only improves the modularity of the connection, but also enhances the positioning capability of the conductor lead-out terminal in the plug-in direction. The first lead-out terminal 121 refers to the copper sheet portion extending from the copper sheet winding 12 for electrical connection, and the jack refers to a structural hole provided through the plug-in board for accommodating the lead-out terminal. While improving assembly efficiency and connection reliability, this structure also provides a radial matching working basis for the subsequent extrusion 7, thereby making the inductor and transformer combination structure more stable in dealing with short-circuit impact loads.

[0027] In some embodiments, combined with Figure 1 、 Figure 3 The second conductive bracket 4 is provided with an axial plug-in post 41. This axial plug-in post 41 is positioned near one of the radial plug-in plates 31 provided on the first conductive bracket 3, and is parallel to the extension direction of the radial plug-in plates 31. Furthermore, the copper ring 22 is provided with a second lead-out end 221. This second lead-out end 221 is structurally provided with a sleeve hole 2211 for mating with the axial plug-in post 41. Specifically, the sleeve hole 2211 is sleeved onto the outside of the axial plug-in post 41 to form a stable axial plug-in connection.

[0028] It can be understood that the design of this structure is beneficial to enhancing the positioning ability of the copper ring 22 in the axial direction and limiting its axial displacement caused by electrodynamic force or thermal stress during the operation of the transformer. The axial plug-in column 41 is arranged in parallel with the radial plug-in plate 31, which helps to make the structural wiring compact and the arrangement reasonable. It also makes the copper winding 12 and the copper ring 22 have a certain symmetry in spatial position, which is convenient for uniformly applying mechanical limits or cooperating with other fixing components 5 to achieve the stability of the composite structure. The second lead-out end 221 refers to the end area extending from the copper ring 22 for electrical connection. The sleeve hole 2211 is a through hole or sleeve structure opened at this end for the positioning of the plug-in column. The plug-in fit refers to a non-permanent mechanical connection formed by sliding.

[0029] Through this structural setting, the copper ring 22 can complete electrical connection without relying on welding or fasteners, and has anti-radial displacement performance, further improving the structural stability and operational reliability of the entire transformer assembly under high current short-circuit impact conditions.

[0030] In some embodiments, Figure 2 、 Figure 4 As shown, the number of copper sheet windings 12 is set to a, the number of copper sheet rings 22 is set to b, and the quantity relationship of a=2b is satisfied, that is, each copper sheet ring 22 corresponds to two copper sheet windings 12.

[0031] 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 plug-in process, two adjacent first lead-out ends 121 pass through the radial insertion holes 311 provided on the radial plug-in board 31 and then respectively adhere to the upper and lower surfaces of the second lead-out end 221, thereby forming a structural combination with a top-bottom covering effect.

[0032] It can be understood that in this structure, the first lead end 121 has a strong resistance to deformation in the axial direction under the restraining effect of the first conductive bracket 3, that is, it is not easy to undergo significant bending or displacement in the axial direction. However, due to its structural characteristics and plug-in method, the second lead end 221 has a certain amount of deformation space in the axial direction. Therefore, by placing two first lead ends 121 with high axial rigidity in a close fit on the upper and lower surfaces of the second lead end 221, a preliminary axial limit constraint can be provided for the second lead end 221 at the structural level, thereby limiting the axial movement tendency of the second lead end 221 to a certain extent.

[0033] In this way, this structural combination is beneficial in improving the stress stability of the second lead-out end 221 of the copper ring 22 in the axial direction when the transformer is short-circuited or under stress, thereby indirectly enhancing the mechanical stability and electrical connection reliability of the entire combined structure.

[0034] It is worth noting that the specific method of bonding can be surface bonding or line bonding, and the contact area is determined according to the width and position of the lead-out terminal, and combined with the arrangement of the sockets, the upper and lower lead-out terminals have a relatively consistent contact pressure distribution, thereby further enhancing the limiting effect. In terms of structural explanation, the first lead-out terminal 121 refers to a conductive segment extending from the copper sheet winding 12, which is used to insert into the radial socket 311 and make an electrical connection. The second lead-out terminal 221 is a conductive portion extending from the copper sheet ring 22, which is sleeved on the axial plug-in column 41 and electrically connected through it. Bonding refers to the local connection or abutment between the two in a close contact manner between the surfaces, thereby forming a structural attachment relationship. Through the setting of this symmetrical distribution and quantity ratio relationship, the mechanical cooperation between the copper sheet winding 12 and the copper sheet ring 22 can be made more reasonable, and on the basis of maintaining the simplicity of the assembly structure, the device's ability to resist structural deformation under electrical shock or short-circuit stress can be improved.

[0035] In some embodiments, combined with Figure 1 、 Figure 3 The adjusting member 6 includes an insulating rod 61. An insertion slot 411 is provided along the length of the axial plug post 41. The insulating rod 61 is inserted into the insertion slot 411. The insulating rod 61 is inserted from top to bottom. When the insulating rod 61 is inserted from top to bottom along the insertion slot 411, the extrusion member 7 automatically switches from the first state to the second state. When the insulating rod 61 is withdrawn from the insertion slot 411 from bottom to top, the extrusion member 7 automatically switches from the second state to the first state.

[0036] Exemplarily, the extrusion 7 includes an insulating sliding block 71, which is inserted into a sliding hole 412 set in the axial plug-in column 41 in a sliding manner. There are multiple sliding holes 412 on the axial plug-in column 41, each sliding hole 412 is vertically connected to the plug-in groove 411, and an insulating sliding block 71 is set in each sliding hole 412, which corresponds to a first lead-out end 121 after sliding out of the sliding hole 412. Furthermore, the insulating sliding block 71 is provided with a passive, angled push surface 711 at one end of the insertion slot 411, and an active, angled push surface 611 is provided at the end of the insulating rod 61. When the insulating rod 61 is inserted downward, the active, angled push surface 611 gradually abuts against the passive, angled push surface 711, generating a thrust during the insertion process. This thrust has an outward component, thereby pushing the insulating sliding block 71 along the length of the sliding hole 412 toward the end away from the insertion slot 411, until a portion of its structure extends from the end of the sliding hole 412 and abuts against the surface of the first lead end 121 facing away from the second lead end 221. In this structure, the insulating sliding block 71 not only provides structural support for the first lead end 121 during the contact process, but also limits the axial deformation of the second lead end 221 to a certain extent, forming a preliminary axial limit structure for the copper ring 22.

[0037] For example, referring to Figure 3 、 Figure 4 A side groove 4121 is provided on the inner sidewall of the sliding hole 412, communicating with and parallel to the sliding hole 412. A connecting block 73 is fixed to the sidewall of the sliding block, extending into the side groove 4121. A spring 72 has one end fixed to the connecting block 73 and the other end connected to the inner endwall of the side groove 4121, forming a reset mechanism that forces the sliding block to move toward the insertion slot 411. The spring 72 undergoes tensile deformation as the sliding block is pushed out of the sliding hole 412, thereby storing elastic potential energy. When the insulating rod 61 exits the insertion slot 411, i.e., the active and passive inclined surfaces 611 and 711 are released from engagement, the reset force of the spring 72 is immediately released, pushing the connecting block 73, which in turn drives the sliding block back toward the insertion slot 411 and reenters the sliding hole 412. The entire sliding block returns from its extended state to its concealed state, facilitating smooth disengagement of the copper ring 22 from the axial insertion post 41, preventing mechanical jamming or electrical connection interference.

[0038] It will be appreciated that in its natural state, when the insulating rod 61 is not inserted or has not reached the push section, the slider is completely retracted at the junction of the sliding hole 412 and the insertion slot 411, maintaining a clean interior and preventing accidental contact with the copper ring 22 and its lead terminals, which could affect assembly accuracy. The contact between the active and passive beveled push surfaces 611 and 711 is sliding, not rigid engagement. The contact angle can be adjusted through design optimization to vary the thrust and slider push speed, thereby accommodating lead terminals of varying thickness or elasticity.

[0039] Based on this, the above structure has excellent state switching capabilities. The insulating plug 61 serves as a control medium, and its plugging and unplugging operations do not rely on additional tools. The state changes of the extruded part 7 can be directly controlled manually. At the same time, the sliding block forms a partial surface fit with the lead end through the inclined thrust extension structure, thereby providing a certain degree of structural support for the second lead end 221 in the axial direction. Combined with the quantitative matching relationship and fitting method between the copper ring 22 and the copper winding 12, the copper ring 22 can also be clamped radially and axially as a whole, which is beneficial to reduce the tendency of local warping or displacement of the lead end due to electrodynamic stress under short-circuit conditions, thereby enhancing the overall structure's deformation suppression ability under high voltage or strong pulse current. In addition, the plugging and ejecting process of this structure is limited by the physical position change of the insulating plug 61, preventing the sliding block from automatically dislodging during the assembly process, improving the controllability of the operation process and structural safety. During the recovery process of extrusion element 7, the rebound force of spring 72 cooperates with the sliding path of connecting block 73 to ensure that the sliding block can return to the preset position smoothly and without obstruction, facilitating subsequent disassembly and maintenance. While meeting mechanical strength requirements, the overall structure effectively achieves both electrical isolation and mechanical support through the rational coordination of insulating structural components.

[0040] In some embodiments, Figure 3 、 Figure 4 As shown, the insulating sliding block 71 is composed of an insulating sliding portion 712 and an insulating abutting portion 713, which are connected by a torsion spring 8 to form a relative rotation structure. The torsion spring 8 is provided at the connection position between the insulating sliding portion 712 and the insulating abutting portion 713 and is configured to always have a tendency to rotate the insulating abutting portion 713 away from the insulating sliding portion 712. Furthermore, the insulating sliding block 71 is slidably arranged along the sliding hole 412 in the axial plug-in column 41. The outer shape of the insulating sliding portion 712 matches the inner cavity of the sliding hole 412. In the normal storage state, the insulating abutting portion 713 and the insulating sliding portion 712 are fitted together to form an integrated structure. The overall size of the insulating abutting portion 713 and the insulating sliding portion 712 are adapted to the through-hole size of the sliding hole 412, so that the extruded member 7 is completely located 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 fitting state 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.

[0041] When the extrusion piece 7 is changed from the first state to the second state through the insertion operation of the insulating plug 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, and at this time the insulating abutment portion 713 is also completely exposed from the open end of the sliding hole 412. At this time, because the sliding hole 412 no longer provides it with inner wall constraints, the torsion spring 8 begins to release torque to push the insulating abutment portion 713 to rotate in the direction away from the insulating sliding portion 712, and finally the insulating abutment portion 713 is expanded around its torsion spring 8 connection point relative to the insulating sliding portion 712 and turns to fit the surface of the first lead end 121 away from the second lead end 221. When an insulating sliding block 71 is provided on the upper and lower sides of a second lead-out end 221 in the structure, and the insulating abutment 713 of each insulating sliding block 71 rotates in the corresponding direction under the action of the above-mentioned 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 abutment portions 713, thereby acting on the two first lead-out ends 121 and one second lead-out end 221 sandwiched therebetween. The clamping structure can, to a certain extent, form a reaction force and provide a pre-tightening force in the axial direction on the two first lead-out ends 121 and one second lead-out, which is beneficial to enhancing the axial matching stability between the second lead-out end 221 and the first lead-out end 121.

[0042] Furthermore, because the insulating abutment portion 713 ultimately abuts the surface of the first lead end 121 facing away from the second lead end 221, it not only helps to axially limit the second lead end 221, but also structurally resists the radial deformation tendency of the first lead end 121 that may occur due to external forces, thereby constraining the first lead end 121 in the radial direction. In particular, when the inductor or transformer is in a short-circuit condition or a high-current surge condition, the copper ring 22 may deform in the axial or radial direction due to transient electromotive force. The presence of the insulating abutment portion 713 can, to a certain extent, limit the displacement of the first lead end 121 through a clamping effect, thereby enhancing the overall structural retention capability of the copper winding 12 under complex load conditions, which is beneficial to improving the stability and safety of the entire assembly under extreme conditions.

[0043] Furthermore, the torsion force of torsion spring 8 should be designed to be lower than the rebound force of spring 72, which drives the insulating sliding block 71, to ensure that when the insulating rod 61 exits the insertion slot 411, spring 72 can smoothly pull the insulating sliding block 71 back to its initial position along the direction of the sliding hole 412. Even if the insulating abutment 713 expands outward to form structural support under the torsion force of torsion spring 8, the reaction of 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 re-apply restraint to the insulating abutment 713, thereby forcing the insulating abutment 713 to re-adhere to the surface of the insulating sliding block 712, restoring the original state and maintaining a stable state after the sliding block is re-entered into the sliding hole 412.

[0044] It should be noted that the rotational connection between the insulating sliding portion 712 and the insulating abutment portion 713 can be a hinge-type or pin-type structure, or other connection methods with relative rotation function and capable of accommodating the torsion spring 8 can be adopted. The size and expansion angle of the insulating abutment portion 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 problems caused by excessive extension. While maintaining efficient limiting capabilities, this structure also takes into account the assembly tolerance compensation requirements between components, providing beneficial guarantees for the consistency and reliability of the overall assembly. Therefore, the structural design of the insulating sliding block 71 combined with the torsion spring 8 drive is beneficial to achieving effective switching between the first state and the second state, and in the second state, a higher level of clamping and limiting is achieved on the lead-out end of the copper ring 22 through the two-way expansion structure, so that the entire inductor and transformer combination mechanism has a stronger structural stability when subjected to extreme electrical or mechanical loads.

[0045] 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 sliding smoothness.

[0046] In some embodiments, Figure 3 、 Figure 4 The surface of the first lead-out end 121 is covered with an insulating rubber layer 9, which is tightly adhered 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 with the surface of the second lead-out end 221, a contact interface is formed through the insulating rubber layer 9.

[0047] It is understood that the material of insulating rubber layer 9 is a polymer rubber material with excellent 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 slight topographical 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 end 121 and the second lead end 221. Because the first lead end 121 does not directly make metallic contact with the second lead end 221, but is instead bonded through the intermediate insulating rubber layer 9, during operation, even if a voltage difference exists between the two ends, this can, to a certain extent, prevent current from being directly conducted along the bonded interface to the other lead end, thereby reducing 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 combination under high-voltage operating conditions.

[0048] In addition, the thickness of the insulating rubber layer 9 can be designed and adjusted according to the required voltage resistance level. The thickness range should ensure that the insulation strength requirements are met but will not interfere with the assembly of the mechanical structure. It has a certain flexibility in structural design and is suitable for inductor and transformer combination systems of different models or voltage levels. The term "covering" in this structure refers to the addition of covering materials on the surface of the lead-out end by coating or adhering. The term has a wide range and can cover a variety of preparation methods such as molding, coating molding, and thermal bonding. On the premise of maintaining the electrical insulation function, the heat resistance, moisture resistance and corrosion resistance can also be further improved through material optimization, thereby maintaining stable performance in a complex electrical environment. The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.

Claims

1. An inductor and transformer combination mechanism, characterized in that: The invention comprises an inductor component (1) and a transformer component (2), wherein the inductor component (1) comprises a first iron core (11) and a copper sheet winding (12), wherein a plurality of copper sheet windings (12) are wound at intervals on the periphery of the first iron core (11), and the transformer component (2) comprises a second iron core (21) and a copper sheet ring (22), wherein a plurality of copper sheet rings (22) are wound at intervals on the periphery of the second iron core (21); It also includes a first conductive bracket (3) and a second conductive bracket (4) that are connected, the copper sheet winding (12) and the first conductive bracket (3) are radially plug-fitted, and the copper sheet ring (22) and the second conductive bracket (4) are axially plug-fitted; The invention also includes a fixing assembly (5), wherein the fixing assembly (5) includes an adjusting member (6) and an extruding member (7) provided on the second conductive bracket (4), wherein the extruding member (7) has a first state and a second state under the action of the adjusting member (6); wherein when the extruding member (7) is in the first state, the extruding member (7) is received in the second conductive bracket (4); and when the extruding member (7) is in the second state, the extruding member (7) is configured to restrict radial movement of the copper sheet winding (12) on the first conductive bracket (3), and to restrict axial movement of the copper sheet ring (22) on the second conductive bracket (4).

2. The inductor and transformer combination structure according to claim 1, characterized in that: The first conductive support (3) has a radial plug-in plate (31), and a group of the radial plug-in plates (31) are respectively provided on both radial sides of the first iron core (11), and the radial plug-in plates (31) are provided with a plurality of radial plug holes (311) along their own length direction. The copper sheet winding (12) has a first lead-out end (121), and the first lead-out end (121) passes through the radial plug hole (311) relative to the radial direction of the first iron core (11).

3. The inductor and transformer combination structure according to claim 2, characterized in that: The second conductive bracket (4) has an axial plug-in column (41), the axial plug-in column (41) is close to the radial plug-in plate (31) and the two are parallel, the copper ring (22) has a second lead-out end (221), the second lead-out end (221) is provided with a sleeve hole (2211), and the second lead-out end (221) is sleeved and matched with the axial plug-in column (41) through the sleeve hole (2211).

4. The inductor and transformer combination structure according to claim 3, characterized in that: The number of the copper sheet windings (12) is configured as a, and the number of the copper sheet rings (22) is configured as 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 two adjacent first lead-out ends (121) fit with the upper and lower surfaces of the corresponding second lead-out ends (221) after passing through the radial insertion holes (311).

5. The inductor and transformer combination structure according to claim 3, characterized in that: The adjusting member (6) includes an insulating plug rod (61), and a plug slot (411) is provided on the axial plug column (41) along its length direction, and the insulating plug rod (61) is inserted into the plug slot (411), wherein: When the insulating plug (61) is inserted from top to bottom along the length direction of the plug slot (411), the extrusion member (7) automatically switches from the first state to the second state; When the insulating plug rod (61) is withdrawn from bottom to top along the length direction of the plug slot (411), the extrusion member (7) automatically switches from the second state to the first state.

6. The inductor and transformer combination structure according to claim 5, characterized in that: The extrusion piece (7) includes an insulating sliding block (71), a plurality of sliding holes (412) are provided in the axial plug-in column (41), the sliding holes (412) are vertically connected to the plug-in slot (411), the insulating sliding block (71) is slidably inserted in the sliding hole (412), and one insulating sliding block (71) corresponds to one first lead-out end (121); An active oblique push surface (611) is provided at the end of the insulating plug rod (61), and a passive oblique push surface (711) is provided at one end of the insulating sliding block (71) located in the plug slot (411). The active oblique push surface (611) is configured to slide and fit with the passive oblique push surface (711) when the insulating plug rod (61) is inserted from top to bottom along the length direction of the plug slot (411), so as to push the end of the insulating sliding block (71) away from the plug slot (411) out of the sliding hole (412) and fit with the surface of the first lead end (121) away from the second lead end (221).

7. The inductor and transformer combination structure according to claim 6, characterized in that: The extrusion member (7) further includes a spring (72) and a connecting block (73). The inner side 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 arranged 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 side close to the plug-in slot (411).

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

9. The inductor and transformer combination structure according to claim 6, characterized in that: The inner wall of the sliding hole (412) is covered with a polytetrafluoroethylene layer.

10. An inductor and transformer combination structure according to any one of claims 3 to 9, characterized in that: 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 bonded to the surface of the second lead-out end (221) through the insulating rubber layer (9).

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