High-performance network transformer and electronic equipment

Abstract

The invention relates to the technical field of magnetic devices, and discloses a high-performance network transformer and electronic equipment, and the high-performance network transformer comprises a shell which is provided with a containing cavity with an opening in the lower end; the at least one first magnetic ring is configured in the accommodating cavity, a winding coil is wound on the first magnetic ring, and a plurality of lead connectors are led out from the winding coil; the plurality of PINs are designed in a C-shaped structure and are connected in the side wall of the shell, one end of each PIN is provided with a wire winding PIN part protruding out of the side surface of the shell, the lead connector is correspondingly welded with the wire winding PIN part, the other end of each PIN is provided with a patch PIN part, the patch PIN part is led out from the lower end of the shell and corresponds to the wire winding PIN part on the side surface of the shell, and in the first direction, the patch PIN part is welded with the wire winding PIN part in a welding manner; the wire winding PIN parts and the patch PIN parts are arranged in a staggered mode, and the first direction is the extension direction of the upper end and the lower end of the shell. The reliability and the comprehensive performance of the network transformer are improved.

Description

Technical Field

[0001] The present application relates to the technical field of magnetic devices, and in particular to a high-performance network transformer and electronic equipment. Background Art

[0002] With the development of modern network communication technology, network transformers, as key electromagnetic components in network equipment, are widely used in Ethernet interface modules, vehicle-mounted communication equipment, industrial control systems and other fields. Their main functions include signal coupling, impedance matching, electromagnetic interference suppression and electrical isolation. In order to adapt to applications with high reliability and performance requirements such as vehicle-mounted Ethernet and high-speed industrial Ethernet, network transformers need to have higher winding efficiency, more reliable welding performance and stronger mechanical reliability. Network transformers in related technologies generally use parallel terminals or gull-wing terminals, but parallel terminals occupy a large space and have limited layout, which can easily lead to welding difficulties, especially in automated production. The monitoring of welding quality is hindered, and the gull-wing terminal has poor coplanarity consistency and is easily deformed when subjected to external forces, affecting assembly stability. This is contrary to the evolution of network transformers towards high reliability, high performance and miniaturization. Summary of the invention

[0003] In view of this, the present application provides a high-performance network transformer and electronic equipment to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, according to the first aspect, the technical solution adopted is:

[0005] A high performance network transformer, comprising:

[0006] A housing, wherein the housing has a receiving cavity with an opening at the lower end;

[0007] At least one first magnetic ring, the first magnetic ring is arranged in the accommodating cavity, and a winding coil is wound around the first magnetic ring, and the winding coil is led out with a plurality of lead connectors;

[0008] PIN pin, several of the PIN pins are designed in a C-shaped structure and are connected to the side wall of the shell, one end of the PIN pin has a wire winding PIN part protruding from the side of the shell, the lead connector is welded corresponding to the wire winding PIN part, the other end of the PIN pin has a patch PIN part, the patch PIN part is led out from the lower end of the shell and corresponds to the wire winding PIN part on the side of the shell, in a first direction, the wire winding PIN part and the patch PIN part are staggered, wherein the first direction is the extension direction of the upper and lower ends of the shell.

[0009] The present application is further configured as follows: in a vertical projection of the first direction, there is a set misalignment value between the side edges of the wire winding PIN portion and the patch PIN portion on the same side, and the set misalignment value is ≥ 0.2 mm.

[0010] The present application is further configured as follows: it also includes a functional boss, a plurality of the functional bosses are connected to the lower end of the shell and protrude from the side of the shell, and the patch PIN part is attached to the functional boss.

[0011] The present application is further configured as follows: it also includes functional grooves, a plurality of which are opened at the lower end of the shell and are located between adjacent functional bosses, and the lead connector is connected to the wire winding PIN portion through the functional grooves.

[0012] The present application is further configured as follows: one end of the functional groove extends to the side of the shell and faces the wire winding PIN part in the first direction, and one end of the functional groove facing the wire winding PIN part has a set width range, and the set width range includes 0.3mm to 2mm.

[0013] The present application is further configured as follows: on the same side of the shell, the wire winding PIN portion and the patch PIN portion are respectively arranged at intervals along a second direction, and the wire winding PIN portion and the patch PIN portion are parallel to each other in the second direction, wherein the second direction is perpendicular to the first direction.

[0014] The present application is further configured as follows: in a vertical projection of the second direction, a set spacing range is provided between the wire winding PIN portion and the patch PIN portion of the same PIN pin, and the set spacing range includes 1.5 mm to 4.1 mm.

[0015] The present application is further configured as follows: an end of the wire winding PIN portion facing away from the shell has a broken copper exposed portion, the broken copper exposed portion is parallel to the side of the shell, and the lead connector is wound around the wire winding PIN portion until the broken copper exposed portion, or maintains a preset shear distance from the broken copper exposed portion.

[0016] The present application is further configured as follows: in a vertical projection of the first direction, the exposed copper portion of the fracture and the end of the patch PIN portion facing away from the housing have a set difference range, and the set difference range includes -2mm to 2mm.

[0017] The present application is further configured as follows: the side of the functional boss facing away from the shell is arranged in a plane, and the sides of a plurality of the functional bosses facing away from the shell are all located in the same plane.

[0018] The present application is further configured as follows: it also includes at least one second magnetic ring, the second magnetic ring is configured in the accommodating cavity and is arranged at an interval with the first magnetic ring, the winding coil is respectively wound on the first magnetic ring and the second magnetic ring and leads to a plurality of the lead connectors.

[0019] According to the first aspect, the technical solution adopted is:

[0020] An electronic device comprises an integrated circuit board and a high-performance network transformer as claimed in any one of claims 1 to 11, wherein a patch PIN portion of the high-performance network transformer is electrically connected to the integrated circuit board.

[0021] In summary, compared with the prior art, the present application discloses a high-performance network transformer and an electronic device, wherein at least one first magnetic ring is arranged in a receiving cavity with an opening at the lower end of the high-performance network transformer, a winding coil is wound on the first magnetic ring and a lead connector is led out, and a plurality of PIN pins in a C-shaped structure are connected to the side wall of the shell, one end of which has a wire winding PIN portion protruding from the side surface of the shell, and the other end has a patch PIN portion led out from the lower end of the shell and corresponding to the wire winding PIN portion on the side surface of the shell, the lead connector is connected to the wire winding PIN portion accordingly, and in the first direction, the wire winding PIN portion and the patch PIN portion are staggered, that is, through the above arrangement, the staggered design of the wire winding PIN portion and the patch PIN portion greatly reduces the difficulty of winding the lead connector, and the side assembly design of the PIN pin of the C-shaped structure enables the wire winding PIN portion to have a larger winding space, which is convenient for winding the lead connector and also prevents tin beads and tin slag from splashing into the receiving cavity, thereby improving the reliability and comprehensive performance of the network transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of the high-performance network transformer of this embodiment;

[0024] Figure 2 is a schematic diagram of the structure of the high-performance network transformer of this embodiment viewed from above;

[0025] Figure 3 is a schematic side view of the high performance network transformer of this embodiment;

[0026] Figure 4 is a front view structural schematic diagram of the high performance network transformer of this embodiment;

[0027] Figure 5 is a structural schematic diagram of another high-performance network transformer of this embodiment; DETAILED DESCRIPTION

[0028] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0029] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0030] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present application, and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0032] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] The technical solutions shown in this application will be described in detail below through specific embodiments. It should be noted that the description order of the following embodiments is not intended to limit the priority order of the embodiments.

[0034] Please refer to Figures 1 to 4 The high-performance network transformer of the embodiment of the present application includes a housing 1, a first magnetic ring 2 and a PIN pin 4.

[0035] In the specific implementation process, the shell 1 has a accommodating cavity 11 with an opening at the lower end, at least one first magnetic ring 2 is arranged in the accommodating cavity 11, and a winding coil 3 is wound on the first magnetic ring 2, and the winding coil 3 has a plurality of lead connectors 31 led out, and a plurality of PIN pins 4 are designed in a C-shaped structure and connected to the side wall of the shell 1, one end of the PIN pin 4 has a wire winding PIN portion 41 protruding from the side of the shell 1, the lead connector 31 is welded corresponding to the wire winding PIN portion 41, and the other end of the PIN pin 4 has a patch PIN portion 42, which is led out from the lower end of the shell 1 and corresponds to the wire winding PIN portion 41 on the side of the shell 1.

[0036] In the first direction, the wire winding PIN portion 41 and the patch PIN portion 42 are staggered, and the first direction is the extension direction of the upper and lower ends of the housing 1 .

[0037] In the high-performance network transformer of the embodiment of the present application, the wire winding PIN portion 41 and the patch PIN portion 42 of the PIN pin 4 with a C-shaped structure are designed to be offset on the side of the shell 1 and in the first direction, thereby optimizing the space and operability for winding the lead connector 31 and the wire winding PIN portion 41, reducing the difficulty of winding the wire, and avoiding the problem of tin beads or tin slag splashing into the accommodating cavity 11 during welding of the lead connector 31 and the wire winding PIN portion 41, thereby improving the reliability and comprehensive performance of the network transformer.

[0038] It is understandable that in order to ensure the production efficiency of the network transformer, AOI (automatic optical inspection) can be used on the automated production line to detect the PIN pin solder joints. Then, the offset design of the wire winding PIN part 41 and the patch PIN part 42 of the PIN pin 4 with a C-shaped structure does not overlap in the first direction to avoid mutual obstruction, ensuring that the camera of the AOI equipment can clearly capture the solder joint details of each PIN pin 4, that is, a wider visual area is formed through the offset, and the detection blind area caused by the overlap of the PIN pins is effectively prevented. In other words, the above-mentioned offset makes the solder joint distribution more spatially layered, and the AOI equipment can independently scan each solder joint without being interfered by the adjacent PIN pin solder joints, thereby improving the detection accuracy and ensuring 100% AOI inspection.

[0039] On the other hand, the PIN pin 4 is designed in a C-shaped structure and is connected to the side wall of the shell 1, that is, the wire winding PIN part 41 and the patch PIN part 42 can be regarded as distributed on the side of the shell 1. Compared with the traditional bottom PIN pin, the network transformer of this embodiment makes the solder joint located on the side of the shell. Even if a small amount of tin beads or tin slag is generated during welding, these pollutants will naturally fall to the outside of the shell 1 and will not enter the accommodating cavity 11 of the shell 1. In other words, the solder joint area of ​​the lead connector 31 and the wire winding PIN part 41 is isolated from the accommodating cavity 11 by the wall layer of the shell 1, ensuring that there is no possibility of tin slag intrusion into the cavity. At the same time, the solder joints are distributed on the side, which is conducive to self- Automated welding equipment is used for precise welding, which reduces the rework rate caused by poor welding, and the bottom space of the shell 1 can be fully utilized. Overall, the side design of the wire winding PIN part 41 and the patch PIN part 42 avoids the space occupation required for traditional bottom welding, so that more space can be reserved inside the shell 1 for the arrangement of key components. Based on the space release of the accommodating cavity 11 of the shell 1, the volume of the first magnetic ring 2 can also be expanded accordingly. Then, after the cross-sectional area of ​​the first magnetic ring 2 is increased, its magnetic flux area can also be increased accordingly, thereby improving the inductance and volt-second product performance of the network transformer, thereby improving the reliability and comprehensive performance of the network transformer.

[0040] The shell 1 of this embodiment can be designed as a rectangular structure. Based on the good deformation resistance of the rectangular shell, it can effectively withstand external mechanical pressure or impact, improve the structural stability of the product in a complex working environment, and the accommodating cavity 11 can also be designed as a rectangular cavity. Compared with the special-shaped shell, the effective space utilization rate can be improved, which is convenient for the compact layout of components such as the first magnetic ring 2 and the winding coil 3. Then, the shell 1 has a flat upper and lower end, left and right sides, and front and rear end design, which is suitable for direct stacking or parallel installation with other electronic modules to save equipment space. In addition, the rectangular shell can form a more complete shielding structure by adding a metal layer or a conductive coating to reduce external electromagnetic interference. It is also convenient to print logos or nameplates and is easy to disassemble and maintain. It is suitable for application scenarios such as vehicle-mounted communications, industrial control, and consumer electronics that have strict requirements on volume, structure, and performance.

[0041] It should be noted that this embodiment constructs the XYZ spatial coordinates. Figure 1 For example, the X-axis direction can be regarded as the first direction, the Y-axis direction can be regarded as the second direction, and the Z-axis direction can be regarded as the third direction. The first direction can also be regarded as the extension direction of the upper and lower ends of the shell 1, that is, the direction perpendicular to the end faces of the upper and lower ends of the shell 1. The second direction can also be regarded as the extension direction of the front and rear ends of the shell 1. The third direction can also be regarded as the extension direction of the left and right sides of the shell 1. Of course, this embodiment is not limited to this. XYZ can also be any other directions perpendicular to each other in space in actual needs, which will not be repeated here.

[0042] The PIN pin 4 of this embodiment is designed in a C-shaped structure and is connected to the side wall of the housing 1. The PIN pin of the C-shaped structure has good mechanical elasticity and toughness, and is not easy to deform or break under the action of external force, thereby improving the impact resistance and fatigue resistance of the PIN pin 4. At the same time, based on the C-shaped structure design, the winding PIN part 41 and the patch PIN part 42 maintain an appropriate distance, thereby providing a larger winding space for the winding PIN part 41, facilitating the winding operation of the lead connector 31, especially improving the winding efficiency and accuracy in automated production, and through the design of being connected to the side wall of the housing 1, the PIN pin 4 can be regarded as keeping the winding PIN 4 in the housing 1. The integral connection between the IN portion 41 and the SMD PIN portion 42 avoids space waste in the accommodating cavity 11, and provides greater design freedom for the first magnetic ring 2 and the winding coil 3, that is, the space inside the shell 1 is increased, and a larger magnetic ring or a complex winding coil can be accommodated, thereby improving the overall performance of the network transformer. In other words, the position of the PIN pin 4 is fixed by embedding it in the side wall of the shell 1, thereby ensuring that the SMD PIN portion 42 is accurately docked with the external circuit board, thereby avoiding assembly errors caused by loosening or offset of the traditional PIN pin during the welding process, that is, the shell 1 provides stable support for the PIN pin 4 through the side wall, thereby improving its vibration resistance, and is particularly suitable for high-vibration environments such as vehicle-mounted communication equipment.

[0043] It can be understood that several lead connectors 31 of the winding coil 3 extend from the accommodating cavity 11 and are correspondingly wound and connected to the wire winding PIN portion 41. Furthermore, in the area where the lead connector 31 does not cover the wire winding PIN portion 41, a shearing operation can be performed to remove the portion of the wire winding PIN portion 41 that is not wound by the lead connector 31, thereby ensuring a neat structure and facilitating the welding operation of the lead connector 31 and the wire winding PIN portion 41.

[0044] In one embodiment, the shell 1 is made of at least one of polybutylene terephthalate material, nylon material, polycarbonate material or liquid crystal polymer. Furthermore, the polybutylene terephthalate material can be configured with glass fiber, carbon fiber or aramid fiber to improve the plastic rigidity of the shell 1, or it can be configured with a flame retardant to improve the safety level. On the other hand, the shell 1 is made of polycarbonate material and a thermally conductive filler (aluminum oxide or boron nitride) is configured therein to form a thermally conductive plastic shell to improve the heat dissipation capacity, and the shell 1 can also be metal-plated (copper-plated or nickel-plated) to have a shielding function and improve the anti-electromagnetic interference ability. Combined with the above material selection, the shell 1 is suitable for injection molding process, and can realize integrated molding of complex structures, including integrated injection molding of the shell 1 and the PIN foot 4, thereby ensuring the structural strength and production efficiency of the network transformer.

[0045] It can be understood that the upper and lower ends of the shell 1 refer to the top and bottom ends of the shell 1, and correspondingly, the front and rear ends of the shell 1 refer to the front view end face and rear view end face of the shell 1. Then the shell 1 of this embodiment has an open bottom end and a closed top end.

[0046] Preferably, the top or front end of the housing 1 may also be printed or pasted with a product nameplate and process parameters.

[0047] In one embodiment, in the vertical projection of the first direction, there is a set misalignment value (such as Figure 3 The misalignment value is set to be ≥ 0.2 mm. Based on the design of the set misalignment value, the winding PIN portion 41 and the patch PIN portion 42 form an obvious spatial separation during the welding or winding process, avoiding overlap or visual interference. Furthermore, when the AOI inspection equipment inspects the welding quality of the PIN pin 4, it can clearly distinguish the position and status of each PIN pin 4, achieving 100% coverage and higher inspection accuracy.

[0048] Furthermore, the set misalignment value between the wire winding PIN portion 41 and the patch PIN portion 42 provides sufficient space for welding operation, avoiding the problem of tin bead splashing or mutual influence of solder during welding, thereby reducing the occurrence of adverse phenomena such as short circuit and cold welding, and improving welding quality.

[0049] Furthermore, by setting the misalignment value, flexible layout space can be reserved for the wire winding PIN 41 and the patch PIN 42 of different specifications, sizes or designs, thereby increasing the design fault tolerance. In addition, the design can adapt to a wider range of automated production equipment, reducing the complexity of debugging and replacing production equipment. At the same time, after the wire winding PIN 41 and the patch PIN 42 have set misalignment values, it is beneficial to optimize the thermal distribution design of the shell 1 and reduce the heat concentration effect. Then, the wire winding PIN 41 and the patch PIN 42 are more evenly distributed on the side of the shell 1, and the mechanical stress distribution of the shell 1 is more reasonable, thereby enhancing the overall strength and durability.

[0050] It can be understood that the misalignment value is set to be ≥ 0.2 mm, and the misalignment value of 0.2 mm can be used as the minimum misalignment value between the wire winding PIN portion 41 and the patch PIN portion 42 .

[0051] Preferably, the misalignment value is set within the range of 0.3 mm to 0.8 mm to meet the requirements of industrial production and testing equipment, while taking into account product volume and electrical performance.

[0052] Optionally, in the vertical projection of the first direction, there is a set misalignment value between the side edges of the wire wrap PIN portion 41 and the patch PIN portion 42 on the same side, and the set misalignment value is ≤1.5mm to avoid excessive misalignment of the PIN pin, resulting in waste of the pad layout or excessive lead length.

[0053] In one embodiment, the network transformer further includes a functional boss 5 , a plurality of functional bosses 5 are connected to the lower end of the housing 1 and protrude from the side of the housing 1 , and the patch PIN portion 42 is attached to the functional boss 5 .

[0054] The functional boss 5 not only optimizes the structural support of the PIN foot 4, but also significantly improves the overall performance and reliability of the network transformer. Specifically, the functional boss 5 is formed by extending from the lower end of the shell 1 and protruding from the side of the shell 1, providing reliable mechanical support for the patch PIN part 42, avoiding the patch PIN part 42 from bending, breaking, etc. due to stress concentration during welding or subsequent use, thereby improving the mechanical strength of the product.

[0055] In addition, the patch PIN portion 42 is attached to the functional boss 5, so that it maintains a stable contact state during the welding process, effectively avoiding the problem of floating or warping of the welding point, especially in the automated welding process, the functional boss 5 provides a larger force-bearing area and a more stable welding reference surface for the PIN foot 4, thereby improving the consistency and reliability of welding, and the protruding structural design of the functional boss 5 effectively blocks the splashing of tin beads or tin slag into the accommodating cavity 11 of the shell 1 during welding, further avoiding the reduction of the internal pressure resistance performance, while protecting the insulation and long-term stability of the magnetic ring and the winding coil. On the other hand, the structure of the functional boss 5 provides an additional heat dissipation channel for the shell 1, which is beneficial for the high-power network transformer to more effectively export heat during operation. In addition, the presence of the functional boss 5 enhances the contact area between the shell 1 and the external heat sink or circuit board, thereby further improving the heat dissipation effect.

[0056] Preferably, the side of the functional boss 5 facing away from the shell 1 is arranged in a plane, and the sides of several functional bosses 5 facing away from the shell 1 are all located in the same plane, thereby optimizing the supporting performance of the functional boss 5 and ensuring the stability and reliability of the network transformer during installation and use.

[0057] That is, the side of the functional boss 5 facing away from the shell 1 is arranged in a plane, so that the fitting area between the patch PIN part 42 and the functional boss 5 is more uniform, avoiding poor contact due to uneven surface, thereby ensuring the welding quality. Especially in the SMT (surface mount technology) process, this planar design can provide a consistent support height, improve the mounting stability, and the sides of several functional bosses 5 facing away from the shell 1 are all located in the same plane, so that the patch PIN part 42 can remain horizontal when soldered to the circuit board, so as to reduce the risk of tilting during welding, ensure the high consistency of the welding point, and improve the accuracy and efficiency of the overall assembly. In addition, the functional bosses 5 are in the same plane and can also provide a clear reference datum plane in AOI (automatic optical inspection), which is convenient for the detection equipment to quickly identify and judge whether the solder joints are qualified.

[0058] Optionally, the plane machining tolerance of the functional boss 5 is within ±0.02mm to ensure its flatness and dimensional consistency, thereby meeting high-precision assembly requirements, and the functional boss 5 and the shell 1 are made into an integrated injection molding process so that the plane is tightly combined with the bottom of the shell to avoid gaps or falling off caused by secondary assembly.

[0059] The cross-sectional shape of the functional boss 5 includes but is not limited to a trapezoid, a rectangle or a triangle.

[0060] In one embodiment, the network transformer also includes functional slots 6, several of which are opened at the lower end of the shell 1 and located between adjacent functional bosses 5. The lead connector 31 is connected to the wire winding PIN portion 41 through the functional slot 6, thereby ensuring the connection reliability between the lead connector 31 and the wire winding PIN portion 41, while providing better electrical performance and product assembly convenience.

[0061] In the specific implementation process, the functional groove 6 provides a clear lead path at the lower end of the shell 1, so that the lead connector 31 can be connected to the wire winding PIN part 41 in the shortest path, reducing the bending and winding of the lead, effectively reducing electrical loss, and the opening of the functional groove 6 makes the wiring and connection process of the lead connector 31 clearer and easier to operate. Especially in automated production, the functional groove 6 can provide an accurate positioning reference for the lead, improve assembly efficiency and consistency, that is, the existence of the functional groove 6 guides the lead connector 31 to a fixed path, avoiding the leads from being entangled with each other or contacting other components, thereby reducing the risk of signal interference and improving the electrical performance of the network transformer. At the same time, after the functional groove 6 is opened, a certain air circulation channel is formed at the lower end of the shell 1, which is conducive to the circulation of the heat dissipation airflow, thereby enhancing the heat dissipation capacity of the product during high-power operation.

[0062] Preferably, one end of the functional slot 6 extends to the side of the shell 1 and toward the wire winding PIN portion 41 in the first direction. The functional slot 6 extends to the side of the shell 1, which can provide a more direct wiring channel for the lead connector 31, reduce obstacles and complexity in the wiring process, and is particularly suitable for scenarios requiring precise positioning in automated production lines. After the functional slot 6 is extended to the side of the shell 1, the lead connector 31 can be accommodated in the functional slot 6 without being exposed to the external environment, thereby reducing damage to the lead insulation layer by external mechanical stress, dust or moisture, and improving the service life and reliability of the product.

[0063] Among them, the end of the functional groove 6 toward the winding PIN portion 41 has a set width range (such as Figure 3 As shown in the mark at B of ), the width range is set to include 0.3mm to 2mm. Then, the set width range can improve the adaptability to the lead connector 31. For example, when the width range of the functional slot 6 is 0.3mm to 1mm, it is suitable for the wiring and connection of small diameter leads (such as ≤0.2mm), especially suitable for high-density and miniaturized electronic products; when the width range is 1mm to 2mm, it is suitable for the arrangement of thicker diameter leads or multiple parallel leads, ensuring that it has good stability and operating space in the functional slot 6.

[0064] Furthermore, setting the width range ensures that the end of the functional slot 6 facing the wire winding PIN portion 41 can accurately locate the welding point, thereby avoiding misalignment or cold welding between the wire winding PIN portion 41 and the lead connector 31 during welding.

[0065] Optionally, the width range of the functional slot 6 is formed by a high-precision mold during the manufacturing process, and the roughness of the inner wall of the slot is preferably controlled to ≤Ra0.8 to ensure smooth lead wiring and avoid damage to the outer paint film of the lead due to excessive roughness of the slot wall.

[0066] In one embodiment, on the same side of the shell 1, the wire winding PIN portion 41 and the patch PIN portion 42 are respectively arranged at intervals along the second direction, and the wire winding PIN portion 41 and the patch PIN portion 42 are parallel to each other in the second direction. Therefore, the design of the wire winding PIN portion 41 and the patch PIN portion 42 being arranged at intervals along the second direction avoids the risk of short circuit or cold soldering caused by the PIN pin 4 being too close, and at the same time provides a larger operating space for the welding equipment, which is adapted to the welding head size and precision requirements of the automated welding equipment. In addition, the design of the interval arrangement makes the heat distribution of each PIN pin 4 more uniform during welding or working, reduces the risk of local heat concentration, and extends the service life of the network transformer. At the same time, the parallel design of the wire winding PIN portion 41 and the patch PIN portion 42 in the second direction keeps the lead connection path consistent, reduces the difference in wiring length, thereby reducing the influence of electromagnetic interference and parasitic parameters on the performance of the network transformer, and the parallel arrangement makes the PIN pin 4 more evenly stressed, effectively reducing the stress concentration of the welding point in long-term use, and avoiding pin breakage or solder joint shedding.

[0067] On the other hand, the parallel arrangement of the wire winding PIN portion 41 and the patch PIN portion 42 is clear, which is convenient for quality inspection by automatic optical inspection (AOI) equipment, thereby further improving the product process yield.

[0068] It can be understood that the second direction is perpendicular to the first direction, that is, the arrangement of the PIN pin 4 is orthogonal to the winding direction of the lead connector 31, so that the arrangement direction of the PIN pin 4 and the winding direction are perpendicular to each other, which can reduce electromagnetic interference between the leads and improve the working stability and anti-interference ability of the network transformer.

[0069] Preferably, in the vertical projection in the second direction, there is a set interval range (such as Figure 3 The setting interval range is from 1.5mm to 4.1mm.

[0070] Then, based on the set interval range, the distance between the wire winding PIN portion 41 and the patch PIN portion 42 of the C-type structure PIN pin 4 is effectively constrained, that is, the interval range between the wire winding PIN portion 41 and the patch PIN portion 42 provides sufficient operating space to ensure the high precision of the welding process. At the same time, a reasonable interval range can reduce the electromagnetic coupling effect between the wire winding PIN portion 41 and the patch PIN portion 42, and reduce the influence of parasitic parameters, thereby improving the electrical performance stability of the network transformer, especially in high-frequency application scenarios. At the same time, within the designed interval range, the wire winding PIN portion 41 and the patch PIN portion 42 can effectively disperse the welding heat, reduce the deformation of the PIN pin 4 and the cracking of the solder joints caused by heat concentration during the welding process, thereby improving the service life of the device.

[0071] It should be noted that, in the vertical projection in the second direction, the minimum set interval between the wire winding PIN part 41 and the patch PIN part 42 of the same PIN pin 4 is 1.5 mm, thereby meeting the miniaturization requirements of the network transformer and providing sufficient insulation distance to avoid the risk of short circuit caused by the wire winding PIN part 41 and the patch PIN part 42 being too close.

[0072] Similarly, the maximum setting interval is 4.1mm, which can adapt to larger transformer designs, especially application scenarios that require high voltage or high current processing, to ensure sufficient electrical insulation and heat dissipation space.

[0073] Optionally, in the vertical projection in the second direction, there is a set interval value between the wire winding PIN portion 41 and the patch PIN portion 42 of the same PIN pin 4, and the set interval value is 2.5 mm.

[0074] In one embodiment, the end of the wire winding PIN portion 41 facing away from the shell 1 has a broken copper exposed portion 411, and the broken copper exposed portion 411 is parallel to the side of the shell 1. The lead connector 31 is wrapped around the wire winding PIN portion 41 until the broken copper exposed portion 411. After the lead connector 31 is wrapped around the wire winding PIN portion 41 and welded and fixed, the soldering effect can be inspected through the broken copper exposed portion 411, such as whether the solder joint is full and whether the solder is evenly distributed, so as to avoid undesirable phenomena such as cold soldering or false soldering, thereby significantly improving the welding quality and reliability.

[0075] It should be noted that, in the process of winding the lead connector 31 around the wire winding PIN portion 41, a shearing operation can be performed on the area of ​​the wire winding PIN portion 41 not covered by the lead connector 31, thereby removing a portion of the wire winding PIN portion 41 not wrapped by the lead connector 31 to form a broken copper exposed portion 411, or, based on the range of action of the lead connector 31 wrapped around the wire winding PIN portion 41, the wire winding PIN portion 41 can be sheared first to form a broken copper exposed portion 411.

[0076] Optionally, the lead connector 31 is wound on the wire winding PIN portion 41 and maintains a preset shearing distance from the broken copper exposed portion 411, so that after the lead connector 31 is wound on the wire winding PIN portion 41, the area of ​​the wire winding PIN portion 41 not covered by the lead connector 31 can be conveniently sheared. Alternatively, in an application scenario, based on the wire diameter or the number of winding turns of the lead connector 31, the length of the wire winding PIN portion 41 relative to the shell 1 is planned in advance. Then, after the lead connector 31 is fully acted on the wire winding PIN portion 41, the wire winding PIN portion 41 is sheared to form the broken copper exposed portion 411.

[0077] Preferably, in the vertical projection in the first direction, the copper exposed portion 411 of the fracture and the end of the PIN portion 42 facing away from the housing 1 have a set difference range (such as Figure 4 The difference range is set from -2mm to 2mm.

[0078] Specifically, based on the fact that the exposed copper portion 411 of the fracture is formed at one end of the wire winding PIN portion 41 after shearing, when the setting difference is a negative value, the position of the wire winding PIN portion 41 can be regarded as slightly lower than the patch PIN portion 42; when the setting difference is a positive value, the position of the wire winding PIN portion 41 can be regarded as slightly higher than the patch PIN portion 42; when the setting difference is 0mm, the wire winding PIN portion 41 and the diverging ends of the patch PIN portion 42 can be regarded as being in the same horizontal plane, that is, the exposed copper portion 411 of the fracture not only optimizes the structural design of the wire winding PIN portion 41, but also realizes the dual purposes of welding quality detection and space optimization through the shearing step and the difference range setting, so as to be compatible with various production process requirements, that is, in different assembly environments, the length of the wire winding PIN portion 41 relative to the side of the shell 1 can be flexibly adjusted to adapt to the number of turns of the lead connector 31, thereby further improving the reliability of the production process.

[0079] Optionally, the vertical projection of the copper exposed portion 411 of the fracture in the third direction has a set size, and the set size includes a set copper exposed length and a set copper exposed width (such as Figure 3 As shown in the markings at E and F of the fracture, the set size of the exposed copper portion 411 of the fracture is appropriately controlled to ensure that the lead connector 31 has sufficient contact area during welding, thereby forming a firm solder joint and effectively reducing the risks of cold solder joints and welding detachment. A smaller set size can reduce the exposed area and avoid oxidation caused by external environmental influences, while a larger set size facilitates full coverage of the solder and enhances the welding strength. Based on this, the exposed copper length is set to include 0.2mm to 1.0mm, and the exposed copper width is set to include 0.1mm to 0.4mm.

[0080] Optionally, the exposed copper length is set to 0.8 mm and the exposed copper width is set to 0.2 mm.

[0081] In one embodiment, reference Figure 5 The network transformer also includes at least one second magnetic ring 7, which is disposed in the accommodating cavity 11 and spaced apart from the first magnetic ring 2. The winding coil 3 is respectively wound around the first magnetic ring 2 and the second magnetic ring 7 and has a plurality of lead connectors 31.

[0082] According to the actual environmental requirements, the network transformer can also be provided with at least one second magnetic ring 7, so that it is arranged at intervals with the first magnetic ring 2 to form a multi-magnetic ring structure. Preferably, the first magnetic ring 2 can include a transformer magnetic ring and the second magnetic ring 7 can include a common mode magnetic ring. Thus, the network transformer performs voltage conversion through the first magnetic ring 2 and performs signal filtering through the second magnetic ring 7. That is, the coordinated work of the first magnetic ring 2 and the second magnetic ring 7 provides the network transformer with dual functions. In terms of voltage conversion, the first magnetic ring 2 is responsible for converting the input voltage to the output voltage according to the required ratio, and the second magnetic ring 7 ensures the quality of the output signal by filtering and suppressing common mode noise, thereby improving the overall performance of the device.

[0083] The present application also discloses an electronic device, including an integrated circuit board and a high-performance network transformer as in any of the above-mentioned embodiments, wherein the patch PIN portion of the high-performance network transformer is electrically connected to the integrated circuit board. For other working principles and processes of the electronic device of this embodiment, refer to the description of the high-performance network transformer in the aforementioned embodiment of the present invention, which will not be repeated here.

[0084] The high-performance network transformer and electronic device provided by the present application are introduced in detail above, and the principle and implementation method of the present application are explained by using specific examples in this article. It should be noted that in the present application, the description of each embodiment has its own emphasis, and for the part that is not described or recorded in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0085] The above are only preferred embodiments of the present application, and the patent scope of the present application is not limited thereto. The various technical features of the technical solution of the present application can be arbitrarily combined. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of this application, or directly or indirectly used in other related technical fields, as long as there is no contradiction in the combination of these technical features, are equally included in the patent protection scope of the present application.

Claims

1. A high performance network transformer, characterized in that: include: A housing, wherein the housing has a receiving cavity with an opening at the lower end; At least one first magnetic ring, the first magnetic ring is arranged in the accommodating cavity, and a winding coil is wound around the first magnetic ring, and the winding coil is led out with a plurality of lead connectors; PIN pin, several of the PIN pins are designed in a C-shaped structure and are connected to the side wall of the shell, one end of the PIN pin has a wire winding PIN part protruding from the side of the shell, the lead connector is welded corresponding to the wire winding PIN part, the other end of the PIN pin has a patch PIN part, the patch PIN part is led out from the lower end of the shell and corresponds to the wire winding PIN part on the side of the shell, in a first direction, the wire winding PIN part and the patch PIN part are staggered, wherein the first direction is the extension direction of the upper and lower ends of the shell.

2. The high performance network transformer according to claim 1, characterized in that: In the vertical projection of the first direction, there is a set misalignment value between the side edges of the wire winding PIN portion and the patch PIN portion on the same side, and the set misalignment value is ≥0.2 mm.

3. The high performance network transformer according to claim 1, characterized in that: It also includes functional bosses, a plurality of which are connected to the lower end of the shell and protrude from the side of the shell, and the patch PIN part is attached to the functional bosses.

4. The high performance network transformer according to claim 1, characterized in that: It also includes functional grooves, a plurality of which are opened at the lower end of the shell and are located between adjacent functional bosses, and the lead connector is connected to the wire winding PIN portion through the functional grooves.

5. The high performance network transformer according to claim 4, characterized in that: One end of the functional groove extends to the side of the shell and faces the wire winding PIN portion in the first direction, and one end of the functional groove facing the wire winding PIN portion has a set width range, and the set width range includes 0.3 mm to 2 mm.

6. The high performance network transformer according to claim 1, characterized in that: On the same side of the shell, the wire winding PIN portion and the patch PIN portion are respectively arranged at intervals along a second direction, and the wire winding PIN portion and the patch PIN portion are parallel to each other in the second direction, wherein the second direction is perpendicular to the first direction.

7. The high performance network transformer according to claim 6, characterized in that: In the vertical projection of the second direction, there is a set interval range between the wire winding PIN part and the patch PIN part of the same PIN pin, and the set interval range includes 1.5 mm to 4.1 mm.

8. The high performance network transformer according to claim 1, characterized in that: The end of the wire winding PIN portion facing away from the shell has a broken copper exposed portion, and the broken copper exposed portion is parallel to the side of the shell. The lead connector is wound around the wire winding PIN portion until the broken copper exposed portion, or maintains a preset shear distance from the broken copper exposed portion.

9. The high performance network transformer according to claim 8, characterized in that: In the vertical projection of the first direction, the copper exposed portion of the fracture and the end of the patch PIN portion away from the housing have a set difference range, and the set difference range includes -2mm to 2mm.

10. The high performance network transformer according to claim 3, characterized in that: The side of the functional boss facing away from the shell is arranged in a plane, and the sides of a plurality of functional bosses facing away from the shell are all located in the same plane.

11. The high performance network transformer according to claim 1, characterized in that: It also includes at least one second magnetic ring, which is arranged in the accommodating cavity and spaced apart from the first magnetic ring. The winding coils are respectively wound around the first magnetic ring and the second magnetic ring and lead out a plurality of lead connectors.

12. An electronic device, characterized in that: It comprises an integrated circuit board and a high-performance network transformer as claimed in any one of claims 1 to 11, wherein a patch PIN part of the high-performance network transformer is electrically connected to the integrated circuit board.

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