Assembled network transformer and electronic equipment

Abstract

The invention relates to the technical field of magnetic devices, and discloses an assembled network transformer and electronic equipment, and the assembled network transformer comprises a shell which is provided with a containing cavity with an opening in the lower end, and a plurality of first function grooves formed in the surface of the lower end of the shell in a concave manner; 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 metal terminals are arranged at the lower end of the shell, each metal terminal is correspondingly inserted in each first functional groove, each metal terminal is provided with a wire pressing wrapping lug, and the wire pressing wrapping lugs are bent in the first functional grooves to press the lead connector and are electrically connected with the lead connector; and the fixing glue layer is matched with the first function groove, and the fixing glue layer is filled in the first function groove and wraps the wire pressing wrapping lug and the lead connector. The comprehensive performance of the assembled network transformer is improved.

Description

Technical Field

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

[0002] Network transformers mainly play the role of transmitting data and isolating voltage in network interfaces. With the continuous advancement of science and technology and the vigorous development of new energy, network transformers are increasingly pursuing high reliability, miniaturization and low cost. Network transformers in related technologies often have the following shortcomings:

[0003] Transformer open circuit problems caused by copper wire fatigue breakage and wire breakage at the root of the winding. Among them, the design deficiencies that cause wire breakage include the long path from the copper wire to the winding area, which is prone to bending and leads to copper wire fatigue breakage; the product often vibrates violently in harsh working environments (frequent mechanical vibration and high and low temperature shock, such as in-vehicle environments, aviation environments, etc.), and the copper wire is repeatedly scratched in the corner area of ​​the shell, resulting in poor hanging or even wire breakage;

[0004] Devices are usually coated with conformal coating to protect circuit boards from environmental corrosion. However, the conformal coating tends to penetrate into the transformer along the gaps in the structural design and cover the surface of the copper wire. Under high temperature conditions, the thermal motion between molecules inside the conformal coating is enhanced, resulting in an increase in the distance between molecules, which in turn increases the volume, i.e. thermal expansion occurs. According to the material linear expansion coefficient formula:

[0005]

[0006] Among them, α is the linear thermal expansion coefficient, ΔL is the length change, L0 is the initial length, and ΔT is the temperature change. It can be seen that the greater the temperature change, the greater the deformation of the three-proof paint. The drastic temperature change will cause the three-proof paint to deform, causing the copper wire covered by it to neck, that is, the local weak section of the copper wire will shrink sharply, causing fatigue cracking of the copper wire, and finally breaking the wire, causing the transformer to open poorly. Summary of the invention

[0007] In view of this, the present application provides an assembled network transformer and an electronic device to solve the above-mentioned technical problems.

[0008] To achieve the above objectives, according to the first aspect, the technical solution adopted is:

[0009] An assembled network transformer, comprising:

[0010] A housing, wherein the housing has a receiving cavity with an opening at the lower end, and a plurality of first functional grooves are formed on the lower end surface of the housing;

[0011] 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 a plurality of lead terminals are led out of the winding coil;

[0012] Metal terminals, a plurality of the metal terminals are arranged at the lower end of the housing, each of the metal terminals is correspondingly inserted into each of the first functional slots, and the metal terminals are provided with wire pressing ears, and the wire pressing ears are bent and pressed into the lead connector in the first functional slot and are electrically connected to the lead connector;

[0013] A fixed adhesive layer, the fixed adhesive layer matches the first functional groove, and the fixed adhesive layer is filled in the first functional groove and covers the wire crimping ear and the lead connector.

[0014] The present application is further configured as follows: the metal terminal includes a first bending portion integrally connected to the wire crimping ear, the first bending portion is bent along a first direction relative to the wire crimping ear and then adhered to the outer wall of the shell and the fixed adhesive layer, wherein the first direction is the extension direction of the upper and lower ends of the shell.

[0015] The present application is further configured as follows: the metal terminal includes a second bending portion integrally connected to the first bending portion, the second bending portion is bent along a second direction relative to the first bending portion and adheres to the lower end surface of the shell and the fixed adhesive layer, and is used as a patch pin to electrically connect to an external device, wherein the second direction is perpendicular to the first direction.

[0016] The present application is further configured as follows: the metal terminal includes a connecting portion respectively connecting the first bending portion and the wire crimping ear, and the connecting portion is clamped on the bottom of the first functional groove.

[0017] The present application is further configured as follows: a portion of the side wall of the first functional groove is recessed to form a second functional groove, and a portion of the wire pressing ear is arranged in the second functional groove.

[0018] The present application is further configured as follows: a portion of the side walls of the first functional groove are convexly provided with a snap-fitting fixing block, the snap-fitting fixing block abuts against the connecting portion and extends to between the first bending portion and the wire pressing ear.

[0019] The present application is further configured as follows: it also includes an adhesive layer, which is arranged in the accommodating cavity and respectively connects the first magnetic ring, the winding coil and the inner wall of the shell.

[0020] The present application is further configured as follows: after the lead connector is led out from the winding wire package, it is electrically connected to the wire crimping ear in a straight manner along the second direction through soldering, wave soldering or laser welding.

[0021] The present application is further configured as follows: the first functional groove gradually expands from the upper end of the shell toward the lower end of the shell, and the lead connector on the first functional groove maintains a set distance from the side wall of the fixing adhesive layer.

[0022] According to the second aspect, the technical solution adopted is:

[0023] An electronic device comprises the assembled network transformer as described in any one of the above embodiments.

[0024] In summary, compared with the prior art, the present application discloses an assembled network transformer and an electronic device, wherein the assembled network transformer includes a shell, at least one first magnetic ring, a metal terminal and a fixed adhesive layer, wherein the first magnetic ring is arranged in an accommodating cavity and is wound with a winding wire package, and the winding wire package has a plurality of lead connectors, and each metal terminal is correspondingly inserted into the first functional groove of each shell, and the metal terminal is provided with a wire pressing ear, which is bent and pressed into the lead connector in the first functional groove and is electrically connected to the lead connector, the fixed adhesive layer matches the first functional groove, and the fixed adhesive layer is filled in the first functional groove and covers the wire pressing ear and the lead connector, that is, through the above arrangement, the sealing of the metal terminal and the lead connector relative to the shell is improved, the local damage to the lead of the winding wire package 4 due to thermal expansion or vibration is reduced, and the electrical performance and reliability of the network transformer are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the assembled network transformer of the present application;

[0027] Figure 2 is an exploded view of the assembled network transformer of the present application;

[0028] Figure 3 is a schematic diagram of the three-dimensional structure of the metal terminal of the present application;

[0029] Figure 4 This is a diagram of the matching structure of the first metal terminal and the first functional slot of the present application;

[0030] Figure 5 This is a diagram of the matching structure of the second metal terminal and the first functional slot of the present application. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] Please refer to Figures 1 to 5 The assembled network transformer of the present application includes a housing 1, at least one first magnetic ring 3, a metal terminal 5 and a fixing adhesive layer 7.

[0038] In the specific implementation process, the shell 1 has a accommodating cavity 2 with an opening at the lower end, and a plurality of first functional grooves 11 are recessed on the lower end surface of the shell 1, the first magnetic ring 3 is arranged in the accommodating cavity 2, and a winding wire package 4 is wound on the first magnetic ring 3, and a plurality of lead connectors 41 are led out of the winding wire package 4, wherein a plurality of metal terminals 5 are arranged at the lower end of the shell 1, and each metal terminal 5 is correspondingly inserted into each first functional groove 11, and the metal terminal 5 is provided with a wire crimping ear 6, which is bent and pressed into the lead connector 41 in the first functional groove 11 and is electrically connected to the lead connector 41, the fixed adhesive layer 7 matches the first functional groove 11, and the fixed adhesive layer 7 is filled in the first functional groove 11 and covers the wire crimping ear 6 and the lead connector 41.

[0039] The assembled network transformer of the present application has a housing 1 with an open lower end accommodating cavity 2, which is convenient for the rapid positioning and assembly of the first magnetic ring 3 and the winding wire package 4. The metal terminal 5 is directly bent and pressed into the lead connector 41 through the wire pressing ear 6, and can achieve a stable electrical connection with the lead connector 41, avoiding the multi-step operation of welding or complex clamping in the traditional process, and improving the assembly efficiency and connection reliability. Among them, the fixed glue layer 7 is filled in the first functional groove 11 and covers the wire pressing ear 6 and the lead connector 41, effectively enhancing the overall fixity of the connection part, avoiding the problem of loosening or disconnection caused by mechanical vibration or impact, and the matching design of the fixed glue layer 7 can also reduce the lead connector 41 and the housing 1. The relative movement between them further improves the stability of the network transformer in harsh environments (such as high vibration or large temperature changes), and the first functional groove 11, the wire crimping ear 6 and the fixed glue layer 7 form a modular connection structure, which does not require complex embedded molds and precision processing, reducing mold costs and material costs. Among them, the fixed glue layer 7 covers the wire crimping ear 6 and the lead connector 41, which can effectively isolate the intrusion of the external environment (such as moisture, corrosive gases or pollutants) and extend the service life of the lead and the metal terminal. That is, through the fixing and stress dispersion effect of the fixed glue layer 7, the local damage to the lead of the winding wire package 4 due to thermal expansion or vibration is reduced, and the electrical performance and reliability of the network transformer are improved.

[0040] In addition, the fixed adhesive layer 7 is filled in the first functional groove 11 and covers the wire crimping ear 6 and the lead connector 41, forming an effective sealing barrier, which can prevent the three-proof paint from penetrating into the network transformer during the coating process, thereby preventing the three-proof paint from covering the lead surface of the winding wire package 4, and preventing the three-proof paint from increasing the thermal motion between molecules inside the three-proof paint under high temperature conditions, resulting in an increase in the distance between molecules, thereby increasing the volume, that is, thermal expansion occurs, resulting in drastic temperature changes that will cause the three-proof paint to deform, causing the lead covered by it to neck, that is, the local weak section of the lead is sharply tightened, resulting in fatigue cracking of the lead, and finally breaking the wire to cause the hidden danger of poor open circuit of the transformer.

[0041] That is, the sealing design of the fixed adhesive layer 7 prevents the three-proof paint from contaminating the internal magnetic ring, wire package and lead connector of the network transformer, avoiding affecting the insulation and electrical performance of the coil, and the use of the fixed adhesive layer 7 completely covers the key components such as the metal terminal 5 and the crimping ear 6, reducing the complex operation of additional shielding or protection required during the three-proof paint coating, thereby improving the efficiency of the production line, that is, the sealing effect of the fixed adhesive layer 7 isolates the internal structure of the assembled network transformer from the outside world, ensuring that the three-proof paint is only coated on the predetermined external shell surface, avoiding uneven coating caused by leakage, and further improving the consistency of product appearance and function.

[0042] It can be understood that, in the present application, a plurality of first magnetic rings 3 can be provided, and the plurality of first magnetic rings 3 can be stacked in the accommodating cavity 2, or arranged at intervals in the accommodating cavity 2, and the winding wire package 4 is wound around each first magnetic ring 3, so as to adjust the specific performance and function of the assembled network transformer according to environmental requirements.

[0043] In one embodiment, the metal terminal 5 includes a first bending portion 51 integrally connected to the crimping ear 6 , and the first bending portion 51 is bent along a first direction relative to the crimping ear 6 and then adhered to the outer wall of the housing 1 and the fixing adhesive layer 7 .

[0044] It should be noted that this embodiment constructs the XYZ spatial coordinates. Figure 1 For example, the Z-axis direction can be regarded as the first direction, the X-axis direction can be regarded as the second direction, and the Y-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 left and right sides of the shell 1. The third direction can also be regarded as the extension direction of the front and rear ends 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.

[0045] The design of the first bent portion 51 ensures that the metal terminal 5 fits the outer wall of the shell 1 and the fixed adhesive layer 7, ensures that the metal terminal 5 is fixed more firmly, reduces the loosening or poor electrical contact of the metal terminal 5 due to external force, vibration, thermal expansion and contraction, etc., thereby improving the reliability and durability of the connection. Specifically, the first bent portion 51 fits the outer wall of the shell 1 and the fixed adhesive layer 7 after bending to form a multi-point support structure, which disperses the stress acting on the metal terminal 5 to a larger contact surface, thereby reducing the potential damage to the wire crimping ear 6 or the lead connector 41 caused by single-point stress concentration, and prolongs the service life of the product. After the first bent portion 51 fits the fixed adhesive layer 7, it forms a tight combination with the outer wall of the shell 1, which effectively prevents the metal terminal 5 from being damaged during use. While displacement or loosening occurs during the process, the overall sealing of the device is improved, preventing external dust, water vapor or corrosive substances from penetrating into the network transformer and protecting the internal structure. It can be understood that the first bending portion 51 is integrally connected with the wire crimping ear 6, reducing the processing and assembly steps of additional parts, reducing manufacturing costs, and the bending structure can be fitted and fixed at one time through automated equipment, improving production efficiency and reducing the complexity of manual intervention. On the other hand, after the first bending portion 51 is fitted with the fixed adhesive layer 7, the contact area between the adhesive layer and the terminal is increased, and the adhesion strength of the fixed adhesive layer 7 is improved, that is, the coating effect of the fixed adhesive layer 7 is more uniform and firm, further improving the fixation of the metal terminal 5 and the reliability of electrical contact.

[0046] Preferably, the first bending portion 51 and the wire crimping ear 6 are integrally formed.

[0047] Optionally, the first bending portion 51 is parallel to the side surface of the housing 1 .

[0048] In one embodiment, the metal terminal 5 includes a second bending portion 52 integrally connected to the first bending portion 51, and the second bending portion 52 is bent along a second direction relative to the first bending portion 51 and is adhered to the lower end surface of the shell 1 and the fixed adhesive layer 7, and is used as a patch pin to be electrically connected to an external device, wherein the second direction is perpendicular to the first direction.

[0049] Through the design of the second bent portion 52, the second bent portion 52 is bent along a second direction (perpendicular to the first direction) and fits onto the lower end surface of the shell 1 and the fixed adhesive layer 7, providing a smooth and reliable patch pin structure. That is, the fitting design ensures that the second bent portion 52 has a larger contact surface and stable support during welding, thereby improving the welding quality and conductive performance. The patch design of the second bent portion 52 provides a flat and standardized welding area, which is easy to operate during welding, and has higher reliability of the solder joints. It is particularly suitable for automated welding equipment and can significantly improve the accuracy and consistency of patch welding.

[0050] At the same time, the second bent portion 52 is attached to the lower end surface of the shell 1 and the fixed adhesive layer 7 to form a multi-point support structure, which disperses the external force to a larger area, effectively avoiding loosening, desoldering or damage of the patch pins due to mechanical vibration or external force impact, and improving the stability of the overall structure. The second bent portion 52 is attached to the fixed adhesive layer 7, further increasing the adhesion area of ​​the adhesive layer and improving the fixing effect. After the fixed adhesive layer 7 covers the second bent portion 52, it can prevent external moisture, dust or corrosive substances from penetrating into the electrical connection area, thereby extending the service life of the product. Among them, the second bent portion 52 is bent in a vertical direction relative to the first bent portion 51, and the lower end surface of the shell 1 is used as the bearing area of ​​the patch pin, so as to avoid the metal terminal 5 from being designed to extend excessively or occupying the internal space, thereby not affecting the internal space of the network transformer cavity, and not restricting the selection of the winding coil 4, thereby ensuring the miniaturization optimization of the assembled network transformer, that is, the compact layout makes the network transformer also suitable for application scenarios with limited volume, such as miniaturized electronic devices.

[0051] The second bending portion 52 is integrally connected to the first bending portion 51, which reduces the number of independent parts, simplifies the manufacturing and assembly processes, facilitates mass production through automated equipment, improves production efficiency and reduces manufacturing costs.

[0052] On the other hand, the wire crimping ear 6, the first bent portion 51 and the second bent portion 52 of the metal terminal 5 of the present application are directly bonded to the outer wall of the shell 1 and the fixed adhesive layer 7 in the first functional groove 11, without the need to embed the terminal into the plastic structure, thereby eliminating the complex structural requirements for terminal positioning and fixing in the mold, and eliminating the need for complex multi-cavity or multi-step injection molding design, thereby reducing the number of mold trials and design iteration costs, reducing mold development costs, and greatly improving production efficiency.

[0053] In one embodiment, the metal terminal 5 includes a connecting portion 53 respectively connecting the first bending portion 51 and the wire crimping ear 6, and the connecting portion 53 is clamped at the bottom of the first functional groove 11, so the connecting portion 53 is clamped at the bottom of the first functional groove 11, forming a multi-point fixed structure, that is, the wire crimping ear 6 is connected to the lead connector 41 of the winding wire package 4, the first bending portion 51 fits the outer wall of the shell 1 or the fixed rubber layer 7, and the connecting portion 53 is mechanically locked with the bottom of the first functional groove 11 by clamping, thereby achieving additional support for the metal terminal 5, preventing the terminal from loosening due to vibration or stress during long-term use, and improving the fixing stability and seismic resistance of the terminal. Moreover, the connecting portion 53 is fixed to the bottom of the first functional groove 11 by clamping, which can effectively limit the displacement of the metal terminal 5, such as preventing the metal terminal 5 from being pulled out or pushed during installation, and limiting the metal terminal 5 from shaking or sliding left and right, etc. Then the connecting portion 53 also simplifies the terminal installation process, without the need for additional fixing steps, reducing the device installation steps and time, and improving assembly efficiency.

[0054] In one embodiment, continue to combine Figure 5 Part of the side wall of the first functional groove 11 is recessed to form a second functional groove 12, and part of the wire pressing ear 6 is arranged in the second functional groove 12. The position of the wire pressing ear 6 is further fixed by the limiting effect of the second functional groove 12, that is, the wire pressing ear 6 is not only supported by the bottom of the first functional groove 11, but also limited by the side wall of the second functional groove 12, thereby achieving three-dimensional fixation, preventing the wire pressing ear 6 from sliding horizontally or vertically due to external force or vibration, ensuring its long-term position stability, and at the same time, the second functional groove 12 can also provide a deformation space for bending and pressing the wire pressing ear 6, ensuring that the wire pressing ear 6 can be bent and pressed more fully, so that the contact surface between the lead connector 41 and the wire pressing ear is more fitted, reducing the contact resistance, and improving the firmness and conductivity of the electrical connection.

[0055] Furthermore, during the assembly process of the metal terminal 5 and the housing 1, the second functional groove 12 provides a clear positioning space for the wire crimping ear 6. The automated equipment only needs to insert the wire crimping ear into the first functional groove 11 and partially embed it into the second functional groove 12 without adjustment, thereby ensuring a high-precision installation effect, reducing possible misalignment and rework during the assembly process, and improving production efficiency. After part of the wire crimping ear 6 is configured in the second functional groove 12, the wire crimping ear 6 forms a more complex structural interface with the first functional groove 11 and the second functional groove 12, and the fixed adhesive layer 7 can be more fully filled in the functional groove, covering the wire crimping ear 6, and at the same time sealing its contact points with the first functional groove 11 and the second functional groove 12, so as to reduce possible gaps in the fixed adhesive layer 7, improve the sealing performance of the adhesive layer, and enhance the stability and protection capability of the metal terminal 5 structure.

[0056] At the same time, the second functional groove 12 can limit the freedom of movement of the wire crimping ear 6, especially near the bending part, to prevent the wire crimping ear 6 from tilting or falling off due to external force during installation or operation, and ensure that the wire crimping ear 6 always remains in a fitted state in the groove, avoiding the risk of loosening of the lead connector 41. The second functional groove 12 provides an additional mechanical support point, that is, the vibration energy of the wire crimping ear 6 can be dispersed by the groove wall of the second functional groove 12, avoiding fatigue damage caused by single-point force, and is suitable for long-term high-frequency working scenarios, thereby improving the seismic and fatigue resistance of the network transformer.

[0057] In one embodiment, continue to combine Figure 4, a part of the side wall of the first functional groove 11 is convexly formed with a snap-fitting fixing block 13, which abuts against the connecting portion 53 and extends between the first bending portion 51 and the wire pressing ear 6. Then, the snap-fitting fixing block 13 provides an additional fixed support point, reduces the shaking or loosening of the connecting portion 53 in the first functional groove 11, enhances the positioning accuracy and stability of the metal terminal 5, and reduces the loosening or displacement problem of the metal terminal 5 due to vibration or external force during long-term use. The snap-fitting fixing block 13 extends between the first bending portion 51 and the wire pressing ear 6 to fix the relative position between the connecting portion 53, the first bending portion 51 and the wire pressing ear 6, thereby improving the assembly accuracy. In addition, during external vibration, transportation or use, the snap-fitting fixing block 13 can also effectively limit the shaking and deformation of the metal terminal 5, thereby improving the seismic resistance of the overall structure of the transformer and adapting to harsh use environments.

[0058] It should be noted that the assembled network transformer of the present application also includes an adhesive layer 8, wherein the adhesive layer 8 is arranged in the accommodating cavity 2 and is respectively connected to the first magnetic ring 3, the winding wire package 4 and the inner wall of the shell 1, that is, the adhesive layer 8 connects the first magnetic ring 3, the winding wire package 4 and the inner wall of the shell 1 together, thereby enhancing the overall structural stability between the components and reducing the risk of loosening or dislocation of the components due to vibration, external force or temperature change during use. At the same time, the adhesive layer 8 plays a buffering role and can effectively absorb the force transmitted to the internal components of the transformer by external vibration or impact. Then, through the elastic characteristics of the adhesive layer 8, , reducing the impact of external vibration on the magnetic ring and the wire package, improving the stability of the network transformer in harsh environments, and the adhesive layer 8 as an insulating layer, can effectively prevent electrical faults such as current leakage and short circuit, and improve the electrical insulation of the network transformer. Among them, the adhesive layer 8 can fill the accommodating cavity 2, which can effectively prevent external moisture, dust or other pollutants from entering the interior of the network transformer, ensuring the normal operation of the network transformer in various harsh environments, and the adhesive layer 8 is filled in the accommodating cavity 2, which can optimize the utilization of the internal space, improve the compactness and integration of the product, and is suitable for the design of miniaturized and highly integrated network transformers.

[0059] The adhesive layer 8 can help evenly distribute the heat inside the network transformer, avoid local overheating, and help maintain the temperature of the network transformer stable. That is, the adhesive layer 8 can help to effectively conduct and dissipate heat and prevent damage to the device due to overheating. Of course, the adhesive layer 8 has strong adaptability, and different types of glue can be selected according to different materials and design requirements to meet various performance requirements.

[0060] During the specific implementation process, after the lead connector 41 is led out from the winding wire package 4, it is electrically connected to the wire crimping ear 6 in a straight line along the second direction by soldering, wave soldering or laser welding, making the electrical connection more concise and intuitive, avoiding unnecessary bending or complex path design, thereby avoiding the risk of the lead wire breaking due to repeated scratches in the corner area of ​​the shell 1. That is, the straight path makes the welding process of the lead connector 41 and the wire crimping ear 6 more standardized, reducing the poor connection problem caused by the irregular lead shape, thereby improving the reliability and stability of the entire network transformer.

[0061] When using soldering, wave soldering or laser welding for electrical connection, the straight lead path can ensure that the welding point is easier to contact and ensure the welding quality, improve the stability and durability of the welding, that is, in the long-term use process, the straight lead helps to maintain the stability of the welding point and avoid connection failures due to mechanical vibration or environmental changes. At the same time, since the lead connector 41 is led out straight along the second direction, unnecessary lead bending can be avoided and less space is occupied, thereby improving the compactness of the network transformer design. The optimized lead path makes the layout of other components and parts more reasonable, further improving the integration and overall performance of the equipment.

[0062] Among them, the welding point formed by the lead connector 41 and the wire crimping ear 6 in the first functional groove 11 is wrapped by the fixed adhesive layer 7 to prevent the welding point from loosening or falling off due to vibration or mechanical impact during use, thereby maintaining the welding quality and avoiding poor electrical contact caused by the falling off of the welding point. At the same time, the wrapping of the fixed adhesive layer 7 helps to reduce the stress fatigue of the welding point caused by factors such as vibration and temperature changes, and extend the service life of the welding connection. The fixed adhesive layer 7 can play a buffering role, absorb vibrations that may come from the outside, reduce mechanical stress concentration on the welding point, and improve the fatigue resistance of the welding joint. The fixed adhesive layer 7 can prevent the external environment, such as moisture, dust and other pollutants from entering the welding point, reduce electrical failures caused by external factors, and ensure the long-term electrical stability of the welding point. As an insulating layer, it reduces the risk of electrical short circuit or signal interference and improves the reliability of the electrical system.

[0063] In one embodiment, the first functional groove 11 gradually expands from the upper end of the shell 1 toward the lower end of the shell 1, and the lead connector 41 on the first functional groove 11 maintains a set distance from the side wall of the fixed adhesive layer 7. The gradually expanding design of the first functional groove 11 makes it easier to install the lead connector 41 when inserting the wire crimping ear 6. As the groove gradually expands toward the lower end, the lead connector 41 is allowed to obtain a wider space during the installation process, which reduces the resistance during installation and improves the assembly efficiency. It is also convenient for the fixed adhesive layer 7 to be arranged in the first functional groove 11. The lead connector 41 maintains a set distance from the side wall of the fixed adhesive layer 7 to avoid direct contact between the lead connector 41 and the folded edge of the shell 1 at the first functional groove 11, thereby preventing the lead connector 41 from repeatedly scratching the shell 1 and causing poor wire hanging or wire breakage. Risk.

[0064] Optionally, the set distance between the lead connector 41 and the side wall of the fixing adhesive layer 7 is greater than 0.2 mm.

[0065] In one embodiment, the assembled network transformer also includes at least one second magnetic ring (not shown), which can be configured in the accommodating cavity 2 of the shell 1 and arranged at an interval with the first magnetic ring 3. The winding wire package 4 is respectively wound around the first magnetic ring 3 and the second magnetic ring and has several lead connectors 41. Then, according to the actual environmental requirements, the assembled network transformer forms a multi-magnetic ring structure through the first magnetic ring 3 and the second magnetic ring. For example, the first magnetic ring 3 may include a transformer magnetic ring and the second magnetic ring may include a common mode magnetic ring. As a result, the network transformer performs voltage conversion through the first magnetic ring 3 and performs signal filtering through the second magnetic ring, thereby improving the comprehensive performance of the device.

[0066] The present application also discloses an electronic device, including an assembled network transformer as in any of the above embodiments. For other working principles and processes of the electronic device of this embodiment, please refer to the description of the assembled network transformer in the above embodiment, which will not be repeated here.

[0067] The assembled 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 in this article by using specific examples. 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.

[0068] 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. An assembled network transformer, characterized in that: include: A housing, wherein the housing has a receiving cavity with an opening at the lower end, and a plurality of first functional grooves are formed on the lower end surface of the housing; 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 a plurality of lead terminals are led out of the winding coil; Metal terminals, a plurality of the metal terminals are arranged at the lower end of the housing, each of the metal terminals is correspondingly inserted into each of the first functional slots, and the metal terminals are provided with wire pressing ears, and the wire pressing ears are bent and pressed into the lead connector in the first functional slot and are electrically connected to the lead connector; A fixed adhesive layer, the fixed adhesive layer matches the first functional groove, and the fixed adhesive layer is filled in the first functional groove and covers the wire crimping ear and the lead connector.

2. The assembled network transformer according to claim 1, characterized in that: The metal terminal includes a first bending portion integrally connected to the wire crimping ear, and the first bending portion is bent along a first direction relative to the wire crimping ear and then adhered to the outer wall of the shell and the fixed adhesive layer, wherein the first direction is the extension direction of the upper and lower ends of the shell.

3. The assembled network transformer according to claim 2, characterized in that: The metal terminal includes a second bending portion integrally connected to the first bending portion, the second bending portion is bent along a second direction relative to the first bending portion and adheres to the lower end surface of the shell and the fixed adhesive layer, and is used to serve as a patch pin to electrically connect to an external device, wherein the second direction is perpendicular to the first direction.

4. The assembled network transformer according to claim 2, characterized in that: The metal terminal comprises a connecting portion respectively connected to the first bending portion and the wire crimping ear, and the connecting portion is clamped at the bottom of the first functional groove.

5. The assembled network transformer according to claim 4, characterized in that: Part of the side wall of the first functional groove is recessed to form a second functional groove, and part of the wire pressing ear is arranged in the second functional groove.

6. The assembled network transformer according to claim 4, characterized in that: A clamping and fixing block is protruded from a part of the side wall of the first functional groove, and the clamping and fixing block abuts against the connecting portion and extends to between the first bending portion and the wire pressing ear.

7. The assembled network transformer according to claim 1, characterized in that: It also includes an adhesive layer, which is arranged in the accommodating cavity and respectively connects the first magnetic ring, the winding coil and the inner wall of the shell.

8. The assembled network transformer according to claim 3, characterized in that: After the lead connector is led out from the winding wire package, it is electrically connected to the wire pressing ear in a straight manner along the second direction through soldering, wave soldering or laser welding.

9. The assembled network transformer according to claim 1, characterized in that: The first functional groove gradually expands from the upper end of the shell toward the lower end of the shell, and the lead connector on the first functional groove maintains a set distance from the side wall of the fixing adhesive layer.

10. An electronic device, characterized in that: It comprises the assembled network transformer as claimed in any one of claims 1 to 9.

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