High-frequency transformer based on quick plug type winding connection structure

Abstract

The invention relates to the field of high-frequency transformers, and discloses a high-frequency transformer based on a quick plug-in winding connection structure, which comprises a framework, the framework adopts a modular design and consists of a winding reel, a terminal seat and a connection seat, sockets are fixedly connected to two ends of the winding reel, the terminal seat and the connection seat are inserted on the winding reel in a bilateral symmetry manner, and the terminal seat and the connection seat are fixedly connected with the sockets. The high-frequency transformer based on the quick plug-in winding connection structure can effectively solve the problems that in the prior art, a high-frequency transformer used in a switching power supply mostly adopts a framework integrated design and is affected by vibration of industrial equipment, collision of electronic products and the like in actual use, traditional dispensing or adhesive tape fixing has insufficient constraint on a magnetic core, and the magnetic core cannot be fixed easily. The problems of magnetic core saturation, winding burnout and influence on system reliability due to the fact that magnetic circuit fluctuation is caused by changing an air gap between the two magnets in the magnetic core when the magnetic core is in a magnetic state in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the field of high-frequency transformers, and more particularly to a high-frequency transformer based on a quick pluggable winding connection structure. Background Art

[0002] In the field of power electronics, switching power supplies are widely used in various electronic devices to provide the necessary power conversion for their stable operation. A high-frequency transformer is a core element of a switching power supply. Currently, most high-frequency transformers adopt an integrated bobbin design to streamline the structure and improve production efficiency. In this integrated architecture, the magnetic core is usually inserted into a slot and fixed in the bobbin by means of tape or dispensing glue.

[0003] In actual use, fixing the magnetic core by dispensing glue is not conducive to later disassembly and maintenance. When the magnetic core is fixed by tape, due to the inevitable vibration and shock of the high-frequency transformer caused by the external environment (such as strong vibration during the operation of industrial equipment and collisions during the daily use of consumer electronics), the tape is prone to fatigue and looseness, resulting in a small displacement of the two magnets in the magnetic core of the high-frequency transformer. On the one hand, this displacement will cause a change in the air gap between the two magnets in the magnetic core (the air gap is a deliberately reserved air gap in the middle section between the two E-shaped magnets of the magnetic core, and its function is to prevent magnetic core saturation by increasing the magnetic resistance, adjust the inductance, improve the energy storage capacity, and improve the heat dissipation performance, so that the magnetic core and related electromagnetic components can work more stably and effectively), leading to fluctuations in the magnetic circuit characteristics, unstable magnetic resistance and inductance, and further resulting in an increase in the output voltage ripple, poor stability, and even magnetic core saturation, causing a surge in the exciting current, winding heating, reduced efficiency, and a risk of burnout. It will also distort the output waveform and affect the system reliability. Summary of the Invention

[0004] In view of the above-mentioned drawbacks of the prior art, the present invention provides an injection mold equipped with an automatic optimization injection structure for plastic recycling ratio, which can effectively solve the problems in the prior art that most high-frequency transformers used in switching power supplies adopt an integrated bobbin design. In actual use, affected by the vibration of industrial equipment and collisions of electronic products, traditional dispensing glue or tape fixing has insufficient restraint on the magnetic core, which will cause displacement of the magnets in the magnetic core, thereby changing the air gap between the two magnets in the magnetic core, and further causing magnetic circuit fluctuations, abnormal power filtering and energy storage, and may also lead to magnetic core saturation and winding burnout, affecting the system reliability.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: A high-frequency transformer based on a quick pluggable winding connection structure, comprising: Skeleton, the skeleton adopts a modular design and is composed of three parts: a winding cylinder, a terminal block, and a connection block. Sockets are fixedly connected to both ends of the winding cylinder. Sockets are provided on both the terminal block and the connection block, and they are symmetrically inserted into the winding cylinder from left to right through the sockets. The terminal block and the connection block are also respectively locked and connected to the winding cylinder through a tightening mechanism.

[0006] Pins, with multiple pins arranged in a straight line along the front and back as a group. Two groups are symmetrically and fixedly connected to the upper and lower parts of the left end of the terminal block. Each pin is connected with a winding mechanism for assisting in connecting the coil to the pin.

[0007] Magnetic core, the magnetic core includes an E-shaped magnet. Slots are provided on both the terminal block and the connection block. The E-shaped magnet is symmetrically inserted into the terminal block, the connection block, and the winding cylinder from left to right. A locking mechanism is provided on the E-shaped magnet and is matched with the tightening mechanism.

[0008] Among them, the winding mechanism includes a rotating cylinder. The rotating cylinder is rotatably sleeved on the pin, and its right end is connected to the terminal block through a lifting component. A lead seat for assisting in winding the lead wire of the coil around the pin is fixedly connected to the left end of the rotating cylinder.

[0009] Furthermore, a wire hole is penetrated through the lead seat. The width of the wire hole gradually increases from left to right. A pressing component for keeping the lead wire of the coil taut during the winding process is also fixedly connected to the lead seat.

[0010] Furthermore, the lifting component includes a screw rod. An installation groove corresponding to the rotating cylinder is provided on the terminal block. The screw rod is located in the installation groove and is fixedly connected to the right end of the rotating cylinder. The screw rod is rotatably sleeved on the pin, and the screw rod and the pin can rotate relative to each other. The screw rod is threadedly connected to the terminal block. A turning circle is fixedly sleeved on the screw rod. A slot hole matched with the turning circle is provided on the side wall of the cavity of the terminal block.

[0011] Furthermore, the pressing component includes a resisting block. The resisting block is arranged in the wire hole. A short rod is fixedly connected to the right end of the resisting block. The short rod penetrates through the lead seat and the rotating cylinder and is slidably connected to both of them. The short rod and the rotating cylinder are connected by a pressing spring.

[0012] Furthermore, the tightening mechanism connected to the terminal block includes a locking cavity. Two locking cavities are symmetrically and fixedly penetrated and connected to the upper and lower parts of the left end of the winding cylinder. A notch matched with the locking cavity is provided on the terminal block. A plurality of locking plates are evenly and rotatably connected inside the locking cavity and close to the E-shaped magnet. A convex strip matched with the locking plate is fixedly connected to the E-shaped magnet. A locking component is connected inside the locking cavity and far from the E-shaped magnet.

[0013] Further, the latch assembly includes a pressing block which is slidably connected up and down in the locking cavity. A spring seat is fixedly connected to one end of the pressing block away from the locking plate. The movable section of the spring seat is slidably and penetratingly connected to the locking cavity. A stepped groove corresponding to the spring seat is slidably and penetratingly opened on the terminal block. A cylindrical seat is slidably connected in the stepped groove. The mounting method of the pressing mechanism connected to the connecting seat is the same as that of the pressing mechanism connected to the terminal block.

[0014] Further, the locking mechanism includes folding plates. Two folding plates are symmetrically arranged left and right. Trapezoidal grooves are symmetrically opened up and down at the edges of the left end faces of the terminal block and the connecting seat. The folding plates are inserted into the corresponding trapezoidal grooves. Interlocking components cooperating with the cylindrical seat are connected to both horizontal sections of the folding plates symmetrically up and down.

[0015] Further, the interlocking component includes a first wedge block which is fixedly connected to the end of the cylindrical seat away from the spring seat. A second wedge block cooperating with the first wedge block is fixedly connected to the folding plate. A bolt is rotatably connected to the upper end of the second wedge block, and the bolt and the folding plate are connected in a threaded manner.

[0016] The technical solution provided by the present invention has the following beneficial effects compared with the prior art: In this embodiment, during the process of inserting the E-shaped magnet into the slot and the hollow part of the winding cylinder, as the longitudinal section in the middle of the E-shaped magnet is completely inserted into the hollow part of the winding cylinder, the locking plate abuts against the left end of the corresponding rib under the action of the pressing block and the spring seat. Subsequently, when the upper and lower horizontal sections of the folding plate are aligned and inserted into the corresponding trapezoidal slots, the inclined surface of the second wedge block will contact the inclined surface of the first wedge block and exert pressure on it, thereby driving the left first wedge block and the corresponding cylindrical block to move towards the direction where the left spring seat is located, to make way for the left second wedge block. During this process, the left spring seat will be compressed. When the left second wedge block moves to the right of the left first wedge block, the left spring seat resets, driving the left cylindrical seat and the left first wedge block to reset. Here, the end of the left first wedge block away from the left spring seat will not be completely reset because it will be blocked by the folding plate, so it will continue to exert a certain pressure on the left cylindrical block, the pressing block and the spring seat, driving the left locking plate to deflect further to the right, thereby further pressing against the rib, so as to ensure the locking effect. During this process, the adaptive expansion and contraction of the spring seat will adaptively adjust the deflection angle of the locking plate, and also make the air gap between the two longitudinal sections in the middle of the two E-shaped magnets unchanged, thereby avoiding the influence of external vibration on the performance of the high-frequency transformer. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic three-dimensional structure diagram of a high-frequency transformer based on a quick-plug-and-play winding connection structure of the present invention.

[0019] Figure 2 is an exploded view of a high-frequency transformer based on a quick-plug-and-play winding connection structure of the present invention.

[0020] Figure 3 is a partial cross-sectional view of a high-frequency transformer based on a quick-plug-and-play winding connection structure of the present invention.

[0021] Figure 4 is the present invention Figure 3 a partial enlarged view of part A in.

[0022] Figure 5 is a schematic three-dimensional structure diagram of a terminal seat and a winding mechanism in a high-frequency transformer based on a quick-plug-and-play winding connection structure of the present invention.

[0023] Figure 6 is the present invention Figure 5 a partial enlarged view of part B in.

[0024] Figure 7 is a schematic three-dimensional structure diagram of pins, a rotating cylinder, and a pressing component in a high-frequency transformer based on a quick-plug-and-play winding connection structure of the present invention.

[0025] The reference numerals in the figure respectively represent: 1, skeleton; 11, winding cylinder; 12, terminal seat; 121, socket; 122, socket opening; 13, connecting seat; 14, abutting mechanism; 141, locking cavity; 142, locking plate; 143, convex strip; 144, locking component; 1441, pressing block; 1442, spring seat; 1443, cylindrical seat; 2, pin; 21, winding mechanism; 211, rotating cylinder; 212, lifting component; 2121, screw rod; 2122, turning circle; 213, lead seat; 214, wire hole; 215, pressing component; 2151, abutting block; 2152, short rod; 2153, abutting spring; 3, magnetic core; 31, E-shaped magnet; 32, slot; 33, locking mechanism; 331, folding plate; 332, trapezoidal groove; 333, interlocking component; 3331, first wedge block; 3332, second wedge block. Detailed implementation manners

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] The present invention will be further described below with reference to the embodiments. Embodiment

[0028] Refer to Figures 1-7 , a high-frequency transformer based on a quick pluggable winding connection structure, comprising: A bobbin 1, the bobbin 1 adopts a modular design and is composed of a winding cylinder 11, a terminal block 12, and a connection block 13. The winding cylinder 11 adopts a hollow design. Different from the conventional winding cylinder 11, two sockets 121 for plugging the terminal block 12 and the connection block 13 are fixedly connected to both ends thereof. Corresponding sockets 122 are provided on both the terminal block 12 and the connection block 13. The two are symmetrically plugged into the left and right ends of the winding cylinder 11 and are both connected to the winding cylinder 11 through a tightening mechanism 14.

[0029] Pins 2, with multiple pins 2 arranged in a straight line along the front and back as a group, are symmetrically and fixedly connected to the upper and lower parts of the left end of the terminal block 12. A winding mechanism 21 is commonly connected to the pins 2 and the terminal block 12. The winding mechanism 21 is used to connect the pins 2 and the lead-out wire of the coil.

[0030] A magnetic core 3, the magnetic core 3 includes an E-shaped magnet 31. Two E-shaped magnets 31 are symmetrically arranged on the left and right. Corresponding slots 32 for cooperating with the E-shaped magnet 31 are commonly provided on the terminal block 12 and the connection block 13. During assembly, the front and rear longitudinal segments of the E-shaped magnet 31 are plugged into the corresponding slots 32, and the longitudinal segment near the middle is plugged into the inside near the winding cylinder 11. A locking mechanism 33 for cooperating with the tightening mechanism 14 is provided on the E-shaped magnet 31.

[0031] Among them, the winding mechanism 21 includes a rotating cylinder 211. The rotating cylinder 211 is rotatably sleeved on the pin 2 and its right end is connected to the terminal block 12 through a lifting assembly 212. A lead seat 213 is fixedly connected to the left end of the rotating cylinder 211. A wire hole 214 is penetrated through the lead seat 213. The width of the wire hole 214 gradually increases from left to right to facilitate the threading of the coil lead-out wire. A pressing assembly 215 for keeping the coil lead-out wire taut during winding is also fixedly connected to the lead seat 213.

[0032] During specific implementation, an enameled wire and an insulating tape are wound around the winding cylinder 11 in layers according to processing requirements through an external winding machine to form a coil, and a lead wire with an appropriate length is reserved. Then, the terminal block 12 and the connection block 13 are respectively inserted into the left and right ends of the winding cylinder 11. Next, two E-shaped magnets 31 are symmetrically inserted into the slots 32. Then, each lead wire is passed through the corresponding wire hole 214 and manually pulled to make it taut. Then, the lifting assembly 212 is operated to rotate the rotating cylinder 211, driving the lead wire seat 213 to revolve synchronously around the pin 2 as the center, so that the lead wire can be wound around the corresponding pin 2. While the rotating cylinder 211 is rotating, it will also move to the right relative to the pin 2 under the drive of the lifting assembly 212, thereby ensuring that the lead wire is evenly wound on the pin 2 from left to right. At the same time, during the winding process, the pressing assembly 215 and the lead wire seat 213 cooperate to apply a certain pressing force to the lead wire, so that the lead wire always remains taut during the winding process, ensuring the normal progress of the winding process. This wiring method has a higher connection strength compared with the conventional soldering and crimping methods and will not damage the pin 2 during disassembly.

[0033] The lifting assembly 212 includes a screw rod 2121. An installation groove corresponding to the rotating cylinder 211 is provided on the terminal block 12. The screw rod 2121 is located in the installation groove and fixedly connected to the right end of the rotating cylinder 211. The screw rod 2121 is rotatably sleeved on the pin 2, and the screw rod 2121 and the pin 2 can rotate relative to each other. The screw rod 2121 is threadedly connected to the terminal block 12. A turning circle 2122 is fixedly sleeved on the screw rod 2121, and a slot hole matching the turning circle 2122 is provided on the side wall of the cavity of the terminal block 12.

[0034] The pressing assembly 215 includes a pressing block 2151. The pressing block 2151 is arranged in the wire hole 214. A short rod 2152 is fixedly connected to the right end of the pressing block 2151. The short rod 2152 penetrates through the lead wire seat 213 and the rotating cylinder 211 and is slidably connected to both of them. The short rod 2152 and the rotating cylinder 211 are connected by a pressing spring 2153.

[0035] The tightening mechanism 14 connected to the terminal block 12 includes a locking cavity 141. Two locking cavities 141 are symmetrically and fixedly penetrated and connected to the upper and lower sides of the left end of the winding cylinder 11. A slot matching the locking cavity 141 is provided on the terminal block 12. A plurality of locking plates 142 are evenly rotatably connected inside the locking cavity 141 and close to the E-shaped magnet 31. A convex strip 143 matching the locking plate 142 is fixedly connected to the E-shaped magnet 31. A locking component 144 is connected inside the locking cavity 141 and far from the E-shaped magnet 31.

[0036] The latch assembly 144 includes a pressing block 1441 which is slidably connected up and down in the locking cavity 141. A spring seat 1442 is fixedly connected to one end of the pressing block 1441 away from the locking plate 142. The movable section of the spring seat 1442 is slidably penetrated and connected to the locking cavity 141. A stepped groove corresponding to the spring seat 1442 is slidably penetrated and opened on the terminal block 12. A cylindrical seat 1443 is slidably connected in the stepped groove. The mounting method of the pressing mechanism 14 connected to the connecting seat 13 is the same as that of the pressing mechanism 14 connected to the terminal block 12.

[0037] The locking mechanism 33 includes folding plates 331. There are two folding plates 331 symmetrically arranged left and right. Trapezoidal grooves 332 are symmetrically opened up and down at the edges of the left end faces of the terminal block 12 and the connecting seat 13. The folding plates 331 are inserted into the corresponding trapezoidal grooves 332. Interlocking components 333 are connected to both horizontal sections of the folding plates 331 symmetrically up and down and are matched with the cylindrical seat 1443.

[0038] The interlocking component 333 includes a first wedge block 3331 which is fixedly connected to the end of the cylindrical seat 1443 away from the spring seat 1442. A second wedge block 3332 matched with the first wedge block 3331 is fixedly connected to the folding plate 331. A bolt is rotatably connected to the upper end of the second wedge block 3332, and the bolt and the folding plate 331 are connected in a threaded connection manner.

[0039] During specific implementation, the assembly of the high-frequency transformer includes the following steps: I. Winding: Fix one end of the enameled wire at the starting position of the winding bobbin 11 to ensure that the starting end of the enameled wire does not loosen. Start the external winding machine and wind the enameled wire evenly and tightly on the winding bobbin 11 according to the number of turns and winding direction required by the design. During the winding process, pay attention to keeping the tension of the enameled wire moderate to avoid the coil being loose due to too loose tension or the enameled wire being damaged due to too tight tension. For some high-frequency transformers, multiple layers of coils need to be wound on the winding bobbin 11. After each layer is wound, interlayer insulation treatment needs to be carried out. Generally, an insulating paper is evenly laid on the wound layer of coils, and then the next layer is continued to be wound to prevent interlayer short circuit.

[0040] II. Assembly: Arrange the lead-out wires of each coil on the winding bobbin 11, and respectively insert the terminal block 12 and the connecting seat 13 at the left and right ends of the winding bobbin 11. The fit between the socket 121 and the socket 122 is an interference fit to ensure stable connection. After the winding bobbin 11, the terminal block 12 and the connecting seat 13 are connected, the E-shaped magnet 31 needs to be connected. Taking the connection of the left E-shaped magnet 31 as an example, align the three longitudinal sections of the left E-shaped magnet 31 with the corresponding slots 32 on the terminal block 12 and the hollow part of the winding bobbin 11 respectively, and insert the left E-shaped magnet 31 therein.

[0041] During the process of inserting the left E-shaped magnet 31 mentioned above, as the longitudinal section in the middle of the left E-shaped magnet 31 feeds from left to right in the hollow part of the winding cylinder 11, when the rib 143 on it contacts the locking plate 142, it will drive the locking plate 142 to deflect to the right. During this period, the spring seat 1442 will adaptively expand and contract, enabling the pressing block 1441 to move up and down adaptively. Furthermore, the deflection angle of the locking plate 142 will also change to avoid affecting the feeding of the left E-shaped magnet 31. After the right end face of the horizontal section of the left E-shaped magnet 31 contacts the socket 121 at the left end of the winding cylinder 11, the left E-shaped magnet 31 is installed at the specified position. At this time, the locking plate 142 abuts against the left end of the corresponding rib 143 under the action of the pressing block 1441 and the spring seat 1442.

[0042] Then, align the upper and lower horizontal sections of the left folding plate 331 and insert them into the corresponding trapezoidal grooves 332 on the terminal block 12. During this process, the inclined surface of the left second wedge block 3332 will contact the inclined surface of the left first wedge block 3331 and apply a pressing force to it, thereby driving the left first wedge block 3331 and the cylindrical block corresponding to it to move in the direction of the left spring seat 1442 to make way for the left second wedge block 3332. During this process, the left spring seat 1442 will be compressed. When the left second wedge block 3332 moves to the right side of the left first wedge block 3331, the left spring seat 1442 resets, driving the left cylindrical seat 1443 and the left first wedge block 3331 to reset (here, the end of the left first wedge block 3331 away from the left spring seat 1442 will be blocked by the folding plate 331 and will not fully reset, so it will apply pressure to the left cylindrical block, the pressing block 1441 and the spring seat 1442, driving the left locking plate 142 to deflect further to the right, thereby further pressing tightly against the rib 143, and further ensuring the stability of the E-shaped magnet 31), so as to lock the left second wedge block 3332, and finally realize the locking of the left E-shaped magnet 31.

[0043] When unlocking is required, turn the bolt with an external wrench, driving the second wedge block 3332 to move away from the cylindrical seat 1443, thereby unlocking its locking of the first wedge block 3331. Subsequently, the folding plate 331 can be pulled out, and then the locking of the left E-shaped magnet 31 is also released, and it can be pulled out from the slot 32 and the winding cylinder 11.

[0044] III. Wiring: After the E-shaped magnet 31 is installed and locked, pass each lead wire through the wire hole 214 of the corresponding lead seat 213, and manually pull it to make it taut. Then, rotate the turning circle 2122 so that the drum 211 and the screw 2121 rotate synchronously. The rotation of the drum 211 drives the lead seat 213 to revolve around the pin 2 as the center, thereby winding the lead wire around the corresponding pin 2. When the bolt rotates, it moves to the right relative to the pin 2, and then drives the drum 211 and the lead seat 213 to move to the right synchronously, so that the lead wire can be evenly wound from left to right. At the same time, during the winding process, the abutting block 2151 always abuts the lead wire against the left end of the wire hole 214 under the drive of the abutting spring 2153 and the short rod 2152, so that the lead wire always remains taut during the winding process, and then ensures that the lead wire is wound tightly. When the drum 211 feeds to the rightmost end, the short rod 2152 will contact and abut against the terminal block 12, further pressing the head of the lead wire tightly, thereby avoiding the loosening of the lead wire caused by vibration. This wiring method has a higher connection strength compared with the conventional soldering and crimping methods. When disassembling, reverse-rotate the turning circle 2122 to release the abutment of the lead wire, and it will not damage the lead wire and the pin 2.

[0045] It should be noted that the high-frequency transformer based on the above-mentioned fast pluggable winding connection structure has the following advantages: I. The high-frequency transformer in this embodiment adopts a modular design. On the one hand, the production of different modules can be divided, and production can be carried out in parallel, and then rapid assembly can be carried out to improve the overall production efficiency. On the other hand, compared with the conventional integrated high-frequency transformer, in some application scenarios where the system needs to be upgraded, maintained or expanded, this modular high-frequency transformer can conveniently realize the expansion and upgrade of the system by adding or replacing the corresponding modules.

[0046] II. During the process of locking the E-shaped magnet 31 by the folding plate 331 in this embodiment, on the one hand, the E-shaped magnet 31 is fixed from the outside through the cooperation between the second wedge block 3332 and the first wedge block 3331. On the other hand, the horizontal sections at the uppermost and lowermost positions of the folding plate 331 will also exert a pressing effect on the first wedge block 3331. Through the cylindrical seat 1443, the spring seat 1442 and the pressing block 1441, the locking plate 142 further presses the convex strip 143 to lock the E-shaped magnet 31 from the inside, further improving the locking effect. At the same time, the adaptive expansion and contraction of the spring seat 1442 will adaptively adjust the deflection angle of the locking plate 142, so that the air gap between the middle longitudinal sections of the two E-shaped magnets 31 remains unchanged, thereby avoiding the influence of external vibration on the performance of the high-frequency transformer.

[0047] 3. In the present embodiment, when the dial ring 2122 is rotated manually, the rotating drum 211 and the screw rod 2121 are driven to rotate synchronously. The rotation of the rotating drum 211 drives the lead holder 213 to revolve around the pin 2, thereby winding the lead wire around the corresponding pin 2. When the bolt rotates, it moves to the right relative to the pin 2, thereby driving the rotating drum 211 and the lead holder 213 to move to the right synchronously, so that the lead wire can be evenly wound around the corresponding pin 2 from left to right. At the same time, in the above process, the block 2151 always abuts the lead wire against the shorter end of the lead holder 213 under the drive of the pressure spring 2153 and the short rod 2152, so that the lead wire is always kept taut during the winding process, and when the rotating drum 211 is fed to the rightmost end, the short rod 2152 will contact and abut the terminal seat 12, further tightening the lead wire, thereby avoiding the loosening of the lead wire caused by vibration. This wiring method has higher connection strength than conventional soldering and crimping methods.

[0048] 4. When the high-frequency transformer needs to be updated and maintained, if the E-shaped magnet 31 needs to be removed, it is only necessary to tighten the bolt with an external wrench to drive the No. 2 wedge 3332 to move away from the cylindrical seat 1443, thereby releasing its lock on the No. 1 wedge 3331, and then the folding plate 331 can be pulled out, and then the lock of the left E-shaped magnet 31 is also released, and it can be pulled out from the slot 32 and the winding reel 11. If the lead wire needs to be removed from the pin 2, it is only necessary to rotate the dial circle 2122 in the opposite direction to release the contact of the block 2151 with the lead wire. At the same time, the lead wire will automatically be released from the pin 2 as the lead seat 213 and the rotating drum 211 rotate, without damaging the lead wire and pin 2.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-frequency transformer based on a quick plug-in winding connection structure, characterized in that: include: A frame (1), the frame (1) comprising three parts: a winding drum (11), a terminal seat (12) and a connecting seat (13); a coil and insulating paper are wound on the winding drum (11) and sockets (121) are fixedly connected at both ends of the winding drum; the terminal seat (12) and the connecting seat (13) are both provided with sockets (122) and are symmetrically plugged into the winding drum (11) via the sockets (122); the terminal seat (12) and the connecting seat (13) are also respectively connected to the sockets (121) via a tightening mechanism (14); Pins (2), wherein a plurality of the pins (2) are arranged in a straight line in front and back as a group, and two groups are symmetrically fixedly connected to the left end of the terminal seat (12) in the upper and lower directions, and each pin (2) is connected to a winding mechanism (21) that assists in connecting the coil to the pin (2); A magnetic core (3), the magnetic core (3) comprising an E-shaped magnet (31), a slot (32) being provided on the terminal seat (12) and the connecting seat (13), the E-shaped magnet (31) being symmetrically inserted into the terminal seat (12), the connecting seat (13) and the winding drum (11), and the E-shaped magnet (31) being provided with a locking mechanism (33) cooperating with the pressing mechanism (14); The winding mechanism (21) comprises a rotating drum (211), the rotating drum (211) being rotatably sleeved on the pin (2) and having its right end connected to the terminal seat (12) via a lifting assembly (212), and the left end of the rotating drum (211) being fixedly connected to a lead seat (213) for assisting in winding the coil lead wire onto the pin (2).

2. A high-frequency transformer based on a quick plug-in winding connection structure according to claim 1, characterized in that: The lead-wire holder (213) is provided with a wire hole (214) extending therethrough, the width of the wire hole (214) gradually increasing from left to right, and the lead-wire holder (213) is also fixedly connected with a clamping assembly (215) for keeping the coil lead-out wire taut during the winding process.

3. The high-frequency transformer based on the quick plug-in winding connection structure according to claim 1, characterized in that: The lifting assembly (212) comprises a screw rod (2121); a mounting groove corresponding to the rotating drum (211) is provided on the terminal seat (12); the screw rod (2121) is located in the mounting groove and is fixedly connected to the right end of the rotating drum (211); the screw rod (2121) is rotatably sleeved on the pin (2), and the screw rod (2121) and the pin (2) can rotate relative to each other; the screw rod (2121) is connected to the terminal seat (12) by means of a thread; a rotating ring (2122) is fixedly sleeved on the screw rod (2121); and a slot hole matching the rotating ring (2122) is provided on a side wall of the cavity of the terminal seat (12).

4. The high-frequency transformer based on the quick plug-in winding connection structure according to claim 2, characterized in that: The clamping assembly (215) comprises a stopper (2151), the stopper (2151) being arranged in the wire hole (214), the right end of the stopper (2151) being fixedly connected to a short rod (2152), the short rod (2152) passing through the lead-in seat (213) and the rotating drum (211) and being slidably connected to both, and the short rod (2152) and the rotating drum (211) being connected via a pressure spring (2153).

5. The high-frequency transformer based on the quick plug-in winding connection structure according to claim 1, characterized in that: The clamping mechanism (14) connected to the terminal seat (12) comprises a locking cavity (141), wherein two locking cavities (141) are symmetrically fixed and connected to the left end of the winding drum (11) in the upper and lower directions, and a notch matching the locking cavity (141) is provided on the terminal seat (12), a plurality of locking plates (142) are evenly rotatably connected inside the locking cavity (141) and close to the E-shaped magnet (31), a convex strip (143) matching the locking plate (142) is fixedly connected to the E-shaped magnet (31), and a locking assembly (144) is connected inside the locking cavity (141) and away from the E-shaped magnet (31).

6. The high-frequency transformer based on the quick plug-in winding connection structure according to claim 5, characterized in that: The lock assembly (144) includes a pressure block (1441), the pressure block (1441) is slidably connected in the locking cavity (141) up and down, and a spring seat (1442) is fixedly connected to the pressure block (1441) and one end away from the lock plate (142), and the movable section of the spring seat (1442) is slidably connected to the locking cavity (141), and a stepped groove corresponding to the spring seat (1442) is slidably opened on the terminal seat (12), and a columnar seat (1443) is slidably connected in the stepped groove, and the installation method of the clamping mechanism (14) connected to the connecting seat (13) is the same as that of the clamping mechanism (14) connected to the terminal seat (12).

7. The high-frequency transformer based on the quick plug-in winding connection structure according to claim 6, characterized in that: The locking mechanism (33) comprises a folding plate (331), two folding plates (331) are symmetrically arranged on the left and right sides, and trapezoidal grooves (332) are symmetrically opened at the edges of the left end faces of the terminal seat (12) and the connecting seat (13), and the folding plates (331) are inserted into the corresponding trapezoidal grooves (332). Interlocking components (333) that match the columnar seat (1443) are connected to two horizontal sections of the folding plate (331) that are symmetrical on the top and bottom.

8. The high-frequency transformer based on the quick plug-in winding connection structure according to claim 7, characterized in that: The interlocking assembly (333) comprises a wedge block No. 1 (3331), wherein the wedge block No. 1 (3331) is fixedly connected to the end of the columnar seat (1443) away from the spring seat (1442), and a wedge block No. 2 (3332) matching with the wedge block No. 1 (3331) is fixedly connected to the folding plate (331), and a bolt is rotatably connected to the upper end of the wedge block No. 2 (3332), and the bolt and the folding plate (331) are connected in a threaded manner.

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