High-frequency transformer framework with high insulation and high heat conduction characteristics

Abstract

The invention relates to the technical field of transformers, in particular to a high-insulation and high-heat-conduction high-frequency transformer framework which comprises a middle column, connecting plates are fixedly installed at the two ends of the middle column, a support integrally formed with the connecting plates is fixedly installed on the surfaces of the connecting plates, and a plurality of pins are fixedly installed at the bottom of the support. A plurality of wire grooves penetrating through the connecting plates are formed in the bottom of the support, containing openings penetrating through the middle column are formed in the surfaces of the two connecting plates, and a plurality of grooves are formed in the tops of the connecting plates; transverse openings are formed in the two sides of the middle column, stress blocks are slidably installed in the transverse openings, first telescopic springs are horizontally and fixedly installed on the opening walls of the transverse openings, and the ends, away from the opening walls of the transverse openings, of the first telescopic springs are fixedly connected with the surfaces of the stress blocks. The stress blocks and the first telescopic springs are arranged on the two sides of the middle column, elastic tensioning is formed during winding, coils are tightly arranged, the electromagnetic efficiency is improved, impregnation of insulating oil can be more uniform, and insulation is enhanced.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, and in particular to a high-frequency transformer frame with high insulation and high thermal conductivity. Background Technology

[0002] With the rapid development of portable electronic communications, digital devices and automotive electronics, electronic products are upgrading towards smaller, thinner, and higher-power models. This places higher demands on the size, output power, insulation performance and thermal conductivity of high-frequency transformers. As the core load-bearing component of the transformer, the structural design of the high-frequency transformer frame directly determines the overall assembly accuracy, operational stability and service life of the transformer.

[0003] Chinese patent CN207082422U discloses a high-frequency transformer frame, including a frame column with a hollow receiving opening and a base frame installed at both ends of one side of the frame column. The base frame is provided with pins and wire grooves. The cross-section of the receiving opening is a combination structure of straight side and tangent curved side. The output power of the transformer is improved by increasing the height of the connecting plate and opening grooves. At the same time, the structure of the frame column is optimized to make it easier for insulating oil to penetrate the coil and enhance the insulation performance.

[0004] Although the high-frequency transformer frame in the aforementioned patent documents has made improvements in power enhancement and basic insulation, the wires are easily wound too loosely during the coil winding process, resulting in large gaps between layers. This not only reduces the electromagnetic coupling efficiency but also easily causes the coils to loosen and shift. Furthermore, the loose coil arrangement will cause uneven impregnation of insulating oil, affecting the insulation protection effect. Summary of the Invention

[0005] The purpose of this invention is to address the following shortcomings in the prior art: although existing high-frequency transformer frames have made improvements in power enhancement and basic insulation, the wires are easily wound too loosely during the coil winding process, resulting in large gaps between layers. This not only reduces electromagnetic coupling efficiency but also easily causes coil loosening and displacement. Furthermore, the loose coil arrangement will cause uneven impregnation of insulating oil, affecting the insulation protection effect. Therefore, this invention proposes a high-frequency transformer frame with high insulation and high thermal conductivity.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-frequency transformer frame with high insulation and high thermal conductivity includes a central column, with connecting plates fixedly installed at both ends of the central column. A bracket integrally formed with itself is fixedly installed on the surface of the connecting plate. Multiple pins are fixedly installed at the bottom of the bracket. Multiple wire grooves penetrating the connecting plates are opened at the bottom of the bracket. The multiple wire grooves are respectively opened between multiple adjacent pins. The surfaces of the two connecting plates are provided with receiving openings penetrating the central column. The receiving openings are used to install magnetic cores. Multiple grooves are opened at the top of the connecting plates. Both sides of the central column are provided with horizontal openings, and a force-bearing block is slidably installed in the horizontal opening. A first telescopic spring is horizontally fixedly installed on the wall of the horizontal opening, and the end of the first telescopic spring away from the wall of the horizontal opening is fixedly connected to the surface of the force-bearing block.

[0007] As a preferred embodiment, both ends of the horizontal opening are provided with openings that communicate with the receiving opening, and the openings are provided with limiting components to restrict the entry of the magnetic core.

[0008] As a preferred embodiment, the limiting component includes two symmetrically horizontally rotating shafts installed in the passage and two blocks respectively fixedly installed at the ends of the two shafts. The two blocks located in the passage are symmetrically arranged, and one end of the block is located in the receiving opening. The block is connected to the opening wall of the passage through an elastic component. There is a reserved installation space between the two ends of the force-bearing block and the two connecting plates. The multiple installation spaces correspond to the positions of multiple limiting components, and a pressing component for controlling the relative rotation of the two blocks located in the passage is installed in the installation space.

[0009] As a preferred embodiment, the elastic component includes a torsion spring sleeved on the rotating shaft, with its two ends fixedly connected to the surface of the stop block and the wall of the opening, respectively.

[0010] As a preferred embodiment, the pressing component includes a sliding block slidably installed in the installation space and a U-shaped abutment. The sliding block is connected to the wall of the horizontal opening through a telescopic component, and the abutment is fixedly installed on the surface of the sliding block near the horizontal opening, with the two ends of the abutment corresponding to the surface positions of two blocks located in the opening.

[0011] As a preferred embodiment, the telescopic component includes two second telescopic springs, the two ends of which are fixedly connected to the surface of the sliding block and the wall of the horizontal opening, respectively.

[0012] As a preferred embodiment, the two connecting plates are symmetrically provided with sliding grooves on their adjacent sides, and abutting blocks are slidably installed in the sliding grooves. The groove wall near the central column is at the same horizontal line as the surface of the central column, and the plurality of abutting blocks are moved laterally by pneumatic components.

[0013] As a preferred embodiment, the pneumatic component includes multiple bent hollow rods, multiple first push rods, and multiple second push rods. The surface of the connecting plate has symmetrically opened vertical openings, each communicating with two sliding grooves. The multiple bent hollow rods are symmetrically fixed in pairs within the vertical openings, with both ends of the bent hollow rods located within the vertical openings and the sliding grooves, respectively. The multiple first push rods are respectively sealed and slidably installed within one end of each of the multiple bent hollow rods located within the vertical openings. The multiple second push rods are respectively sealed and slidably installed within one end of each of the multiple bent hollow rods located within the sliding grooves. One end of each of the two second push rods located within the sliding grooves is fixedly connected to the surface of a retaining block located within the sliding grooves. The multiple first push rods located within the vertical openings move laterally via a connecting component.

[0014] As a preferred embodiment, the multiple first push rods located within the vertical opening correspond to the sidewall positions at both ends of the multiple abutments. The connecting component includes multiple pairs of connecting rods, which are fixedly connected to the sidewalls at both ends of the multiple abutments. The ends of the multiple connecting rods away from the abutments are fixedly connected to the surfaces of the multiple first push rods.

[0015] As a preferred embodiment, a deformation layer is bonded to the side of the clamping block away from the chute wall, and the deformation layer is made of rubber.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. Force blocks and first telescopic springs are set in the horizontal openings on both sides of the central column. When the coil is wound, the force blocks are pressed to compress the first telescopic springs. The reverse elastic force of the springs is continuously applied to the coil through the force blocks, providing uniform elastic tension to the wires during winding. This effectively avoids the problem of large gaps between layers and subsequent loosening and displacement caused by the coil being wound too loosely. This makes the coil arrangement more compact and regular, improving the electromagnetic coupling efficiency of the coil. At the same time, the compact coil arrangement allows the vacuum-impregnated insulating oil to penetrate more evenly into the coil layers, strengthening the insulation protection effect. 2. By setting a limiting component consisting of a rotating shaft, a stop block, and a torsion spring inside the passage, and cooperating with the pressing component on the side of the force block, when the coil is not wound, the elastic potential energy of the torsion spring keeps the stop block in the receiving opening, directly preventing the magnetic core from being inserted. Only when the coil is wound and the force block is pressed, the pressing component pushes the stop block to rotate relative to it and retract the passage, thus unlocking the magnetic core installation channel. This structure mechanically forces the correct assembly sequence of "winding the coil first and then installing the magnetic core", eliminating the problem of winding obstruction caused by installing the magnetic core first, and avoiding the scratching and damage of the coil insulation layer caused by forced winding, thus avoiding the hidden danger of insulation failure from the source. 3. Utilizing the clamping block in the sliding groove of the connecting plate, in conjunction with the pneumatic components consisting of the bent hollow rod, the first push rod, and the second push rod, as well as the linkage structure between the connecting rod and the clamping block, while the force block drives the clamping block to move and trigger the stop block to retract, the connecting rod pulls the first push rod, and with the help of the pneumatic transmission of the bent hollow rod, pushes the second push rod to drive the clamping block to move laterally, forming a precise clamping on the end of the wound coil, effectively preventing the coil end from loosening and the wire from sticking up, and improving the overall structural stability of the transformer; 4. The rubber deformation layer on the surface of the clamping block can adapt to the shape of the coil end with different wire diameters and different winding turns, avoiding wire warping and interlayer misalignment, realizing the coil end fixation without damage, greatly improving the structural stability of the overall transformer assembly, and requiring no additional manual operation, thus improving assembly efficiency. 5. The elastic tension of the force-bearing block ensures that the coils are tightly arranged, reducing the air gap between layers and avoiding insulation breakdown caused by local electric field concentration. The anti-misassembly structure eliminates assembly damage to the coil insulation layer and maintains the integrity of the insulation layer. The tight fixing of the coil ends makes the end wires flush, increases the creepage distance, and blocks the end discharge channel. The overall structural design ensures that the insulating oil penetrates evenly between the coil layers during the vacuum impregnation process, forming a complete insulation protection barrier, which meets the insulation requirements of high-power high-frequency transformers in multiple dimensions. 6. The closely arranged coils fit more fully against the surface of the center column, reducing air thermal resistance and allowing the heat generated by the coils to be quickly conducted to the center column body. After the magnetic core is precisely embedded into the receiving hole through the error-proof structure, it fits tightly against the inner wall of the receiving hole. The working heat of the magnetic core can be quickly conducted outward through the center column and connecting plate. At the same time, the clamping block at the end of the coil is in close contact with the coil, which can conduct the heat accumulated at the end of the coil to the connecting plate, realizing multi-directional heat dissipation, avoiding the problem of excessive temperature rise caused by local heat accumulation, delaying the aging of insulation components, improving the service life of the transformer and the operational stability under high power conditions. Attached Figure Description

[0017] Figure 1 This is a frontal three-dimensional structural diagram of a high-frequency transformer frame with high insulation and high thermal conductivity proposed in this invention. Figure 2 This is a side perspective view of a high-frequency transformer frame with high insulation and high thermal conductivity proposed in this invention. Figure 3 This is a bottom-view three-dimensional structural diagram of a high-frequency transformer frame with high insulation and high thermal conductivity proposed in this invention. Figure 4 This is a front structural schematic diagram of a high-frequency transformer frame with high insulation and high thermal conductivity proposed in this invention. Figure 5 This is a partial three-dimensional structural diagram of the central column in a high-frequency transformer frame with high insulation and high thermal conductivity proposed in this invention. Figure 6 This is a partial three-dimensional structural diagram of the pressure-resistant component in a high-frequency transformer frame with high insulation and high thermal conductivity proposed in this invention. Figure 7 This is a partial three-dimensional structural diagram of the force-bearing block, limiting component, pressing component, and clamping block in a high-frequency transformer frame with high insulation and high thermal conductivity proposed in this invention. Figure 8 This is a partial three-dimensional structural diagram of the connecting plate in a high-frequency transformer frame with high insulation and high thermal conductivity proposed in this invention. Figure 9 This is a three-dimensional structural diagram of a bent hollow tube in a high-frequency transformer frame with high insulation and high thermal conductivity proposed in this invention. Figure 10 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 11 for Figure 4 Enlarged structural diagram at point B; Figure 12 for Figure 5 Enlarged structural diagram at point C; Figure 13 for Figure 7 Enlarged structural diagram at point D; Figure 14 for Figure 8 Enlarged structural diagram at point E in the middle.

[0018] In the diagram: 1. Central column, 2. Connecting plate, 3. Bracket, 4. Pin, 5. Wire groove, 6. Receiving port, 7. Horizontal opening, 8. Force-bearing block, 9. First telescopic spring, 10. Through port, 11. Rotating shaft, 12. Stop block, 13. Torsion spring, 14. Groove, 15. Sliding block, 16. Abutment block, 17. Second telescopic spring, 18. Slide groove, 19. Abutment block, 20. Bending hollow rod, 21. First push rod, 22. Second push rod, 23. Vertical opening, 24. Connecting rod, 25. Installation space, 26. Deformation layer. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figures 1-4A high-frequency transformer frame with high insulation and high thermal conductivity includes a central column 1. Both ends of the central column 1 are fixedly installed with connecting plates 2. The surface of the connecting plates 2 is fixedly installed with a bracket 3 integrally formed therein. Multiple pins 4 are fixedly installed at the bottom of the bracket 3. Multiple wire grooves 5 penetrating the connecting plates 2 are opened at the bottom of the bracket 3. The multiple wire grooves 5 are respectively opened between multiple adjacent pins 4. The surfaces of the two connecting plates 2 are provided with receiving openings 6 penetrating the central column 1. The receiving openings 6 are used to install magnetic cores. Multiple grooves 14 are opened at the top of the connecting plates 2.

[0021] Reference Figure 5 Both sides of the central column 1 are provided with horizontal openings 7, and force-bearing blocks 8 are slidably installed in the horizontal openings 7, such as... Figure 7 As shown, a first telescopic spring 9 is fixedly installed horizontally on the wall of the horizontal opening 7, and the end of the first telescopic spring 9 away from the wall of the horizontal opening 7 is fixedly connected to the surface of the force-bearing block 8.

[0022] When performing coil winding on the high-frequency transformer frame, the frame is first fixed on the clamp of the winding equipment, so that the central column 1 is in the core position of the winding operation. The lead wire end of the winding equipment is aligned with the surface of the central column 1, ready for the winding operation. Then the winding equipment is started, and the lead wire begins to wind along the circumference of the central column 1. During the winding process, the lead wire will generate a pressure against the outer surface of the force block 8 on both sides of the central column 1. The force block 8 is continuously pressed by the lead wire, overcomes the elastic force of the first telescopic spring 9 in the horizontal opening 7, and slides horizontally into the horizontal opening 7. At the same time, the first telescopic spring 9 is gradually compressed as the force block 8 slides. During the subsequent continuous winding process, the compressed first telescopic spring 9 always generates a reverse elastic rebound force, which is continuously acted on the coil wound on the surface of the central column 1 through the force block 8, providing a stable elastic tension force for the lead wire during winding, until the coil winding operation of the preset number of turns is completed. After the winding is completed, the lead wire of the coil can be inserted into the wire groove 5 at the bottom of the bracket 3, and then connected and fixed with the adjacent pin 4 to complete the overall winding process.

[0023] Reference Figures 10-12Both ends of the horizontal opening 7 have openings 10 that communicate with the receiving opening 6. Each opening 10 contains a limiting component to restrict the entry of the magnetic core. The limiting component includes two symmetrically rotatable shafts 11 mounted horizontally within the opening 10 and two blocks 12 fixedly mounted at the ends of the two shafts 11. The two blocks 12 within the opening 10 are symmetrically arranged, with one end of each block 12 located within the receiving opening 6. Each block 12 is connected to the opening wall of the opening 10 via an elastic component. The elastic component includes a torsion spring 13 sleeved on the shaft 11, with both ends of the torsion spring 13 fixedly connected to the surface of the block 12 and the opening wall of the opening 10, respectively. Installation gaps are provided between the two ends of the force-bearing block 8 and the two connecting plates 2. The installation space 25 corresponds to the position of multiple limiting components. The installation space 25 is equipped with a pressing component for controlling the relative rotation of two blocks 12 located in the opening 10. The pressing component includes a sliding block 15 and a U-shaped pressing block 16 that are slidably installed in the installation space 25. The sliding block 15 is connected to the opening wall of the horizontal opening 7 through a telescopic component. The telescopic component includes two second telescopic springs 17. The two ends of the second telescopic springs 17 are fixedly connected to the surface of the sliding block 15 and the opening wall of the horizontal opening 7, respectively. The pressing block 16 is fixedly installed on the surface of the sliding block 15 near the horizontal opening 7, and the two ends of the pressing block 16 correspond to the surface positions of the two blocks 12 located in the opening 10.

[0024] Before winding, the torsion spring 13 inside the through 10 is in a natural elastic state. Its elastic force drives the rotating shaft 11 to maintain its initial rotation position. The stops 12 at the ends of the two rotating shafts 11 are symmetrical, and one end of the stop 12 extends into the receiving port 6, blocking the receiving port 6. The magnetic core cannot be inserted, thus achieving the pre-mechanical restriction for magnetic core installation.

[0025] After the winding operation is started, the wire of the winding equipment starts to wind around the central column 1 from one end of the central column 1. The wire first comes into contact with the sliding block 15 in the installation space 25 at that end and generates a horizontal pressure on the sliding block 15. After being pressed by the wire, the sliding block 15 overcomes the elastic force of the two second telescopic springs 17 and slides horizontally in the direction of the horizontal opening 7. At the same time, it drives the U-shaped abutment block 16 fixed on its surface to move synchronously. The two second telescopic springs 17 gradually contract as the sliding block 15 moves.

[0026] When the abutment 16 moves with the sliding block 15 to contact the two stops 12 inside the opening 10, the continuing to move abutment 16 will exert opposing pressure on the two stops 12. This pressure overcomes the elastic force of the torsion spring 13, causing the two rotating shafts 11 to rotate relative to each other inside the opening 10. As the rotating shafts 11 rotate, they also cause the stops 12 to rotate synchronously, causing the stops 12, which originally extended into the receiving opening 6, to gradually rotate and retract into the opening 10 until the stops 12 are completely removed from the receiving opening 6, thus releasing the blockage restriction on the receiving opening 6 at that end.

[0027] As the winding operation continues, the wire extends and winds from one end of the central column 1 to the other. When the wire winds to the position of the force-bearing blocks 8 on both sides of the central column 1, it generates continuous pressure against the outer surface of the force-bearing blocks 8. After being pressed by the wire, the force-bearing blocks 8 overcome the elastic force of the first telescopic spring 9 in the horizontal opening 7 and slide horizontally into the horizontal opening 7. The first telescopic spring 9 is gradually compressed. At the same time, the wire continues to press against the sliding block 15 in the installation space 25 at the other end of the central column 1, pushing the sliding block 15 and the abutment block 16 at that end to move synchronously. Finally, the stop blocks 12 in the openings 10 at both ends of the central column 1 are completely retracted into the openings 10, completely removing the overall blockage of the receiving opening 6 and reserving complete installation space for the smooth embedding of the magnetic core.

[0028] The torsion spring 13, rotating shaft 11, and stop block 12 inside the through-hole 10 cooperate to form a mechanical restriction before the magnetic core is installed. Before winding, the receiving port 6 can be effectively blocked to prevent the magnetic core from being installed incorrectly. When winding, the wire presses against the sliding block 15, which drives the stop block 16 to move. Through the pressing cooperation between the stop block 16 and the stop block 12, the elastic force of the torsion spring 13 is overcome, causing the rotating shaft 11 to rotate and the stop block 12 to retract into the through-hole 10. As the wire winds, the blockage of the receiving ports 6 at both ends of the central column 1 can be gradually released. Moreover, the stop block 12 always remains in the unlocked state during the winding process. After winding is completed, the magnetic core can be directly embedded without any additional unlocking operation. This realizes the linkage operation of winding and magnetic core installation and unlocking. It not only mechanically restricts the correct assembly sequence of winding first and then installing the magnetic core, but also prevents the winding obstruction and coil insulation layer scratch damage caused by installing the magnetic core first. It also simplifies the assembly process and improves the assembly efficiency and work consistency of the transformer frame.

[0029] Reference Figure 6 and Figure 8 The two connecting plates 2 have symmetrically formed sliding grooves 18 on their adjacent sides. Abutment blocks 19 are slidably installed within the sliding grooves 18. The groove wall of the sliding groove 18 near the central column 1 is at the same horizontal line as the surface of the central column 1. Multiple abutment blocks 19 move laterally via pneumatic components, such as... Figure 9 He Ru Figure 13 As shown, the pneumatic component includes multiple bent hollow rods 20, multiple first push rods 21, and multiple second push rods 22. The surface of the connecting plate 2 has symmetrically opened vertical openings 23, each communicating with two sliding grooves 18. The multiple bent hollow rods 20 are symmetrically fixed in pairs within the vertical openings 23, with both ends of the bent hollow rods 20 located within the vertical openings 23 and the sliding grooves 18, respectively. Figure 14As shown, multiple first push rods 21 are respectively sealed and slidably installed in one end of multiple bent hollow rods 20 located in the vertical opening 23, and multiple second push rods 22 are respectively sealed and slidably installed in one end of multiple bent hollow rods 20 located in the slide groove 18. One end of each of the two second push rods 22 located in the slide groove 18 is fixedly connected to the surface of the abutment block 19 located in the slide groove 18. Multiple first push rods 21 located in the vertical opening 23 move laterally through the connecting component. Multiple first push rods 21 located in the vertical opening 23 correspond to the side wall positions at both ends of multiple abutment blocks 16. The connecting component includes multiple pairs of connecting rods 24. Multiple pairs of connecting rods 24 are fixedly connected to the side walls at both ends of multiple abutment blocks 16. The ends of multiple connecting rods 24 away from the abutment blocks 16 are fixedly connected to the surface of multiple first push rods 21.

[0030] Before winding, the clamping block 19 in the slide 18 is in the initial position, with its side away from the central column 1 in contact with the wall of the slide 18. The first push rod 21 and the second push rod 22 in the bent hollow rod 20 are both in a naturally extended state, the connecting rod 24 is in a relaxed and unforced state, and the clamping block 19 does not contact the surface of the central column 1, leaving sufficient space for the coil winding operation.

[0031] When the winding operation starts, the wire extends and winds from one end of the central column 1 to the other end. When the sliding block 15 in the installation space 25 at that end drives the abutment block 16 to move in the direction of the horizontal opening 7, the side walls at both ends of the abutment block 16 simultaneously pull the connecting rod 24 that is fixedly connected to it. After being pulled, the connecting rod 24 moves horizontally in the same direction, thereby driving the first push rod 21 fixed to the end of the connecting rod 24 to make a sealing slide at the end of the bent hollow rod 20 in the vertical opening 23 and retract into the bent hollow rod 20.

[0032] As the first push rod 21 retracts into the bent hollow rod 20, it compresses the sealed air inside the bent hollow rod 20. Utilizing the principle of pneumatic transmission, this compressive force is transmitted to one end of the bent hollow rod 20 located in the slide groove 18, pushing the second push rod 22 in the slide groove 18 to slide in a sealed manner and extend towards the slide groove 18. Since one end of each of the two second push rods 22 in the slide groove 18 is fixedly connected to the surface of the abutment block 19, when the two second push rods 22 extend synchronously, they jointly push the abutment block 19 to move laterally along the slide groove 18 towards the central column 1.

[0033] As the wire continues to wind around the other end of the central column 1, the abutment block 16 at the other end of the central column 1 moves with the sliding block 15. Simultaneously, the first push rod 21 at that end is pulled by the connecting rod 24. Through the pneumatic transmission of the bent hollow rod 20, the second push rod 22 in the slide groove 18 at that end is pushed out and drives the abutment block 19 to move towards the central column 1. When the wire winds to the position of the force blocks 8 on both sides of the central column 1 and completes the preset number of turns, the abutment blocks 19 in the slide grooves 18 at both ends of the central column 1 move to a position flush with the surface of the central column 1, which is exactly in close contact with the end of the wound coil. This achieves precise abutment of the end of the coil and forms a dual constraint of radial and axial force with the radial elastic tension force of the force blocks 8 on the coil, effectively preventing the end of the coil from loosening and interlayer misalignment. The coil end moves along the axial direction of the central column 1, while simultaneously pushing the coil end to fit tightly against the surface of the central column 1, eliminating contact gaps to optimize the heat conduction path of the coil, central column 1, and connecting plate 2, improving heat conduction and heat dissipation. It can also flatten and return the raised wire at the end of the coil to its original position, keeping the end face flush to increase the creepage distance, blocking the end discharge channel, and strengthening the overall insulation performance. Moreover, the clamping stroke of the clamping block 19 is triggered by the clamping force of the coil winding, which can adapt to the coil end shape with different wire diameters and different winding turns, improving the versatility of the frame. At the same time, the clamping action is completed synchronously with the coil winding and the action of the stop block 12 unlocking the magnetic core installation channel, without the need for additional manual operation, which can simplify the assembly process, improve production assembly efficiency and work consistency.

[0034] A deformation layer 26 is bonded to the side of the abutment block 19 away from the groove wall of the slide 18. The deformation layer 26 is made of rubber.

[0035] The rubber deformation layer 26 on the surface of the clamping block 19 can adapt to the clamping pressure and fully fit with the coil end surface, improving the clamping fit and tightness, avoiding hard contact of the clamping block 19 that could cause scratch damage to the coil insulation layer. At the same time, the insulating properties of the rubber material can further strengthen the insulation protection of the coil end, and also buffer the vibration transmission during transformer operation, reduce the loosening of the coil end caused by vibration, and ensure the long-term stability of the coil clamping state.

[0036] In this invention, force-bearing blocks 8 and first telescopic springs 9 are set in the horizontal openings 7 on both sides of the central column 1. When the coil is wound, the force-bearing blocks 8 are pressed to compress the first telescopic springs 9. The reverse elastic force of the first telescopic springs 9 is continuously applied to the coil through the force-bearing blocks 8, providing uniform elastic tension to the wires during winding. This effectively avoids the problem of large interlayer gaps and subsequent loosening and displacement caused by excessively loose coil winding, making the coil arrangement more compact and regular, improving the electromagnetic coupling efficiency of the coil. At the same time, the compact coil arrangement allows the vacuum-impregnated insulating oil to penetrate more evenly into the coil layers, enhancing the insulation protection effect.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-frequency transformer frame with high insulation and high thermal conductivity, comprising a central column (1), characterized in that, Both ends of the central column (1) are fixedly installed with connecting plates (2). The surface of the connecting plate (2) is fixedly installed with a bracket (3) integrally formed with itself. Multiple pins (4) are fixedly installed at the bottom of the bracket (3). Multiple wire grooves (5) penetrating the connecting plate (2) are opened at the bottom of the bracket (3). The multiple wire grooves (5) are respectively opened between multiple adjacent pins (4). The surfaces of the two connecting plates (2) are opened with receiving openings (6) penetrating the central column (1). The receiving openings (6) are used to install magnetic cores. Multiple grooves (14) are opened at the top of the connecting plate (2). Both sides of the central column (1) are provided with horizontal openings (7), and a force-bearing block (8) is slidably installed in the horizontal opening (7). A first telescopic spring (9) is horizontally fixedly installed on the wall of the horizontal opening (7), and the end of the first telescopic spring (9) away from the wall of the horizontal opening (7) is fixedly connected to the surface of the force-bearing block (8).

2. The high-frequency transformer frame with high insulation and high thermal conductivity as described in claim 1, characterized in that, Both ends of the horizontal opening (7) are provided with openings (10) that are connected to the receiving opening (6). The openings (10) are provided with a limiting component for restricting the entry of the magnetic core.

3. The high-frequency transformer frame with high insulation and high thermal conductivity as described in claim 2, characterized in that, The limiting component includes two symmetrically horizontally rotating shafts (11) installed in the opening (10) and two blocks (12) fixedly installed at the ends of the two shafts (11). The two blocks (12) located in the opening (10) are symmetrically arranged, and one end of the block (12) is located in the receiving opening (6). The block (12) is connected to the opening wall of the opening (10) through an elastic component. The two ends of the force-bearing block (8) are reserved with an installation space (25) between them and the two connecting plates (2). The multiple installation spaces (25) correspond to the positions of multiple limiting components, and a pressure component for controlling the relative rotation of the two blocks (12) located in the opening (10) is installed in the installation space (25).

4. The high-frequency transformer frame with high insulation and high thermal conductivity as described in claim 3, characterized in that, The elastic component includes a torsion spring (13) sleeved on the rotating shaft (11), and the two ends of the torsion spring (13) are fixedly connected to the surface of the stop block (12) and the wall of the opening (10), respectively.

5. A high-frequency transformer frame with high insulation and high thermal conductivity as described in claim 4, characterized in that, The pressing component includes a sliding block (15) slidably installed in the installation space (25) and a U-shaped abutment (16). The sliding block (15) is connected to the wall of the horizontal opening (7) through a telescopic component. The abutment (16) is fixedly installed on the surface of the sliding block (15) near the horizontal opening (7), and the two ends of the abutment (16) correspond to the surface positions of the two blocks (12) located in the passage (10).

6. The high-frequency transformer frame with high insulation and high thermal conductivity according to claim 5, characterized in that, The telescopic component includes two second telescopic springs (17), the two ends of which are fixedly connected to the surface of the sliding block (15) and the wall of the horizontal opening (7), respectively.

7. A high-frequency transformer frame with high insulation and high thermal conductivity as described in claim 5, characterized in that, The two connecting plates (2) are symmetrically provided with sliding grooves (18) on their sides that are close to each other. Abutting blocks (19) are slidably installed in the sliding grooves (18). The groove wall of the sliding groove (18) near the central column (1) is at the same horizontal line as the surface of the central column (1). Multiple abutting blocks (19) are moved laterally by pneumatic components.

8. The high-frequency transformer frame with high insulation and high thermal conductivity according to claim 7, characterized in that, The pneumatic components include multiple bent hollow rods (20), multiple first push rods (21), and multiple second push rods (22). The surface of the connecting plate (2) is symmetrically provided with vertical openings (23) that are connected to two sliding grooves (18). The multiple bent hollow rods (20) are symmetrically fixed in pairs in the vertical openings (23), and the two ends of the bent hollow rods (20) are located in the vertical openings (23) and the sliding grooves (18), respectively. The multiple first push rods (21) are respectively sealed. The first push rod (21) located in the vertical opening (23) is slidably installed in one end of the multiple bent hollow rods (20). The second push rod (22) is slidably installed in one end of the multiple bent hollow rods (20) located in the slide groove (18). One end of the two second push rods (22) located in the slide groove (18) is fixedly connected to the surface of the abutment block (19) located in the slide groove (18). The first push rods (21) located in the vertical opening (23) move laterally through the connecting component.

9. A high-frequency transformer frame with high insulation and high thermal conductivity as described in claim 8, characterized in that, The multiple first push rods (21) located in the vertical opening (23) correspond to the side wall positions at both ends of the multiple abutments (16). The connecting component includes multiple pairs of connecting rods (24). The multiple pairs of connecting rods (24) are fixedly connected to the side walls at both ends of the multiple abutments (16). The ends of the multiple connecting rods (24) away from the abutments (16) are fixedly connected to the surfaces of the multiple first push rods (21).

10. A high-frequency transformer frame with high insulation and high thermal conductivity according to claim 7, characterized in that, The side of the clamping block (19) away from the groove wall of the slide (18) is bonded with a deformation layer (26), the deformation layer (26) being made of rubber.

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