High-quality network transformer

Abstract

The utility model relates to the technical field of magnetic devices, and discloses a high-quality network transformer which comprises a main body shell, at least one functional magnetic ring is arranged in the main body shell, a winding coil is wound on the functional magnetic ring, and a plurality of lead connectors are led out from the winding coil; the plurality of internal connecting cantilevers are arranged on the side wall of the main body shell, and a fracture copper exposing part is arranged at one end, far away from the main body shell, of each internal connecting cantilever; the plurality of external joint pins are led out from the lower end of the main body shell and correspond to the internal cantilever on the side wall of the main body shell; the guide protection grooves are formed in the main body shell and located between the adjacent external joint pins, the lead connectors are correspondingly and electrically connected with the internal cantilevers through the guide protection grooves, and the guide protection grooves extend to the side walls of the main body shell from the lower end of the main body shell and gradually expand towards the internal cantilevers. The reliability of the network transformer is improved.

Description

Technical Field

[0001] This application relates to the field of magnetic device technology, specifically to a high-quality network transformer. Background Technology

[0002] As a key component in communication systems and network equipment, network transformers are mainly used for signal coupling, interference suppression, and electrical isolation. With the rapid development of communication technology, network equipment has increasingly higher performance requirements for network transformers, especially in terms of high speed, low latency, high reliability, and compact design. In related technologies, the lead connectors of network transformers are prone to breakage due to pulling or vibration, affecting product quality. In addition, traditional network transformers require a lot of manual intervention in the lead soldering and pin connection process, resulting in low production efficiency and poor consistency. This situation needs to be changed. Utility Model Content

[0003] In view of this, this application provides a high-quality network transformer to solve the aforementioned technical problems.

[0004] To achieve the above objectives, the technical solution adopted is as follows:

[0005] A high-quality network transformer includes:

[0006] The main body shell has at least one functional magnetic ring inside, and a winding coil is wound on the functional magnetic ring. The winding coil has several lead wire connectors leading out.

[0007] An inner cantilever is provided, and several inner cantilevers are arranged on the side wall of the main body shell. The end of the inner cantilever away from the main body shell is provided with a copper-exposed fracture portion, and the copper-exposed fracture portion is parallel to the side wall of the main body shell.

[0008] External mounting feet, a plurality of said external mounting feet extend from the lower end of the main body housing and correspond to the inner cantilever on the side wall of the main body housing, for connecting external electronic devices;

[0009] A guide protection groove is formed on the main body shell and located between adjacent external fitting feet. The lead wire connector is electrically connected to the inner cantilever via the guide protection groove. The guide protection groove extends from the lower end of the main body shell to the side wall of the main body shell and gradually widens towards the inner cantilever.

[0010] This application is further configured such that: the guide protection groove has a set width range at one end near the inner cantilever, the set width range including 0.3mm to 2mm.

[0011] This application is further configured such that: the guide protection groove has a set width range at one end near the inner cantilever, the set width range including 0.5mm to 2.5mm.

[0012] This application further specifies that: the lead connector is wound around the inner cantilever until the copper exposed portion of the break is reached, and the lead connector is welded and fixed to the inner cantilever.

[0013] This application further specifies that: the exposed copper portion of the fracture is parallel to the side wall of the main body shell, the cross-sectional profile of the exposed copper portion of the fracture is rectangular, and the cross-section of the exposed copper portion of the fracture has a designed size.

[0014] This application is further configured such that, on the vertical projection of the first direction, the exposed copper portion of the fracture and the end of the external mating foot away from the main body shell have a set difference range, the set difference range including -2mm to 2mm, wherein the first direction is the extension direction of the upper and lower ends of the main body shell.

[0015] This application is further configured such that, in the first direction, a predetermined interval is maintained between the inner cantilever and the outer fitting foot, the predetermined interval ranging from 1.5 mm to 4.1 mm.

[0016] This application is further configured such that, in the first direction, the vertical projected area of ​​the guide protection groove covers the vertical projected area of ​​the inner cantilever and the lead wire connector.

[0017] This application is further configured such that: a rounded corner is provided at the connection between the lower end of the main body shell and the side wall within the guide protection groove.

[0018] This application is further configured to include at least one auxiliary magnetic ring, which is disposed in the main body housing and spaced apart from the functional magnetic ring, and the winding coil is wound on the functional magnetic ring and the auxiliary magnetic ring respectively and has a plurality of lead wire connectors.

[0019] In summary, compared with the prior art, this application discloses a high-quality network transformer. The main body housing contains at least one functional magnetic ring with a winding coil wound around it. Several lead connectors extend from the winding coil. Several internal cantilever arms are arranged on the side wall of the main body housing. The end of each internal cantilever arm away from the main body housing has an exposed copper section. Several external mating feet extend from the lower end of the main body housing and correspond to the internal cantilever arms on the side wall of the main body housing. A guide protection groove is formed on the main body housing and located between adjacent external mating feet. The lead connectors are electrically connected to the internal cantilever arms via the guide protection groove. The guide protection groove extends from the lower end of the main body housing to the side wall of the main body housing and gradually widens towards the internal cantilever arms. Through the above-mentioned design, the structural reliability of the network transformer is improved. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the high-quality network transformer in this embodiment;

[0022] Figure 2 This is a front view structural diagram of the high-quality network transformer in this embodiment;

[0023] Figure 3 This is a side view of the high-quality network transformer in this embodiment. Detailed Implementation

[0024] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0025] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, components, features, and elements with the same names in different embodiments of this application may have the same meaning or different meanings, the specific meaning of which must be determined by its interpretation in that specific embodiment or further in conjunction with the context of that specific embodiment.

[0026] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0027] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0028] In the description of this application, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] The technical solutions shown in this application will be described in detail below through specific embodiments. It should be noted that the order of description of the following embodiments is not intended to limit the priority of the embodiments.

[0030] Please refer to Figures 1 to 3 The high-quality network transformer in this application embodiment includes a main body shell 1, an inner cantilever 4, an outer fitting foot 6, and a guide and protective groove 7.

[0031] In the specific implementation process, at least one functional magnetic ring 2 is provided inside the main body shell 1. A winding coil 3 is wound on the functional magnetic ring 2. Several lead wire connectors 31 are led out from the winding coil 3. Several internal cantilever arms 4 are arranged on the side wall of the main body shell 1. The end of the internal cantilever arm 4 away from the main body shell 1 is provided with a copper-exposed part 5. Several external fitting feet 6 are led out from the lower end of the main body shell 1 and correspond to the internal cantilever arms 4 on the side wall of the main body shell 1. A guide protection groove 7 is opened on the main body shell 1 and is located between adjacent external fitting feet 6. The lead wire connectors 31 are electrically connected to the internal cantilever arms 4 through the guide protection groove 7. The guide protection groove 7 extends from the lower end of the main body shell 1 to the side wall of the main body shell 1 and gradually expands towards the internal cantilever arms 4.

[0032] In this embodiment, the network transformer, through the design of the guide protection groove 7, provides a clear lead path for the lead connector 31, enabling the lead connector 31 to connect to the inner cantilever 4 via the shortest path, reducing lead bending and tangling. Furthermore, the guide protection groove 7 makes the wiring and connection process of the lead connector 31 clearer and easier to operate. Especially in automated production, the guide protection groove 7 provides a precise positioning reference for the lead, improving assembly efficiency and consistency. In other words, the presence of the guide protection groove 7 guides the lead connector 31 to a fixed path, preventing the lead from tangling or interlocking. Other components are in contact, thereby reducing the risk of signal interference and improving the electrical performance of the network transformer. At the same time, based on the design of the guide protection groove 7, a certain air circulation channel can be formed between the lower end of the main body shell 1 and the external fitting foot 6, which helps the circulation of heat dissipation airflow of the network transformer, thereby enhancing the heat dissipation capacity of the product during high-power operation. In addition to guiding the lead connector 31, the guide protection groove 7 can also accommodate and protect the lead connector 31 through its groove structure, avoiding the risk of the lead connector 31 being pulled by the outside or broken due to high-frequency vibration, thus improving the reliability of the device.

[0033] On the other hand, the end of the inner cantilever 4 away from the main body shell 1 is provided with a copper-exposed break 5. The copper-exposed break 5 can be used to check the electrical connection effect between the lead connector 31 and the inner cantilever 4, ensuring a stable connection between the lead connector 31 and the inner cantilever 4.

[0034] In this process, the lead connector 31 is wound around the inner cantilever 4 up to the exposed copper part 5 at the break point, and the lead connector 31 is welded and fixed to the inner cantilever 4. The exposed copper part 5 at the break point can be used to check the soldering effect between the lead connector 31 and the inner cantilever 4, such as whether the solder joint is full and whether the solder is evenly distributed, so as to avoid defects such as cold solder joints or false solder joints, thereby reducing manual intervention, improving production efficiency, and ensuring welding quality and reliability.

[0035] It should be noted that during the process of winding the lead connector 31 to the inner cantilever 4, a cutting operation can be performed on the area of ​​the inner cantilever 4 not covered by the lead connector 31, thereby removing the part of the inner cantilever 4 that is not wound by the lead connector 31 and forming a broken copper exposed part 5.

[0036] In one embodiment, the exposed copper portion 5 is parallel to the side wall of the main body housing 1. The cross-sectional profile of the exposed copper portion 5 is rectangular, and the cross-section of the exposed copper portion 5 has a designed size. By controlling the set size of the exposed copper portion 5, it is ensured that the lead connector 31 has sufficient contact area during welding, thereby forming a strong solder joint and effectively reducing the risk of poor soldering and solder 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 solder and enhances welding strength.

[0037] It should be noted that the welding quality inspection of the lead connector 31 and the inner cantilever 4 can be carried out by an automated optical inspection (AOI) device. Based on the parallel design of the exposed copper part 5 at the break, defects can be screened more efficiently. That is, AOI can clearly distinguish the connection status of each inner cantilever 4 and lead connector 31, achieving 100% coverage and higher inspection accuracy, thereby improving the production quality of the network transformer.

[0038] Furthermore, this embodiment constructs an XYZ spatial coordinate system, in order to... Figure 1 For example, the Z-axis direction can be regarded as the first direction, the Y-axis direction as the second direction, and the X-axis direction as the third direction. The first direction can also be regarded as the extension direction of the upper and lower ends of the main body shell 1, that is, the direction perpendicular to the end face of the upper and lower ends of the main body shell 1. The second direction can also be regarded as the extension direction of the front and rear ends of the main body shell 1. The third direction can also be regarded as the extension direction of the left and right sides of the main body shell 1. Of course, this embodiment is not limited to this. XYZ can also be any other direction that is perpendicular to each other in space in actual needs, which will not be elaborated here.

[0039] In one embodiment, the guide guard groove 7 has a set width range near one end of the inner cantilever 4 (e.g., Figure 3 As indicated by the mark at point A), the width range is set from 0.3mm to 2mm, thereby improving the adaptability of the lead connector 31 and ensuring that the lead connector 31 has good stability and operating space in the guide protection groove 7. Specifically, the width range ensures that the end of the guide protection groove 7 near the inner cantilever 4 can accurately position the welding point, avoiding misalignment or incomplete welding during the welding process between the inner cantilever 4 and the lead connector 31. In addition, the width range of the guide protection groove 7 is formed by high-precision mold during the manufacturing process, and the roughness of the inner wall of the groove is preferably controlled at ≤Ra0.8 to ensure the smoothness of lead wiring, while avoiding damage to the outer coating of the lead due to excessive roughness of the groove wall.

[0040] Preferably, the guide guard groove 7 has a set width range of 0.5mm to 2.5mm at one end near the inner cantilever 4.

[0041] Optionally, the guide guard groove 7 has a set width value near the end of the inner cantilever 4, the set width value including 1.2mm.

[0042] It is understood that the external mounting feet 6 in this embodiment are used to connect external electronic devices. Specifically, the sides of several external mounting feet 6 that are away from the main body shell 1 are all located on the same plane, thereby ensuring structural stability when soldered to external circuits, especially in SMT (Surface Mount Technology) process.

[0043] In the vertical projection of the first direction, the exposed copper portion 5 of the fracture and the end of the external mating foot 6 away from the main body shell 1 have a set difference range (e.g., Figure 2 As indicated by the mark at point B), the set difference range includes -2mm to 2mm. Specifically, since the exposed copper part 5 is formed at one end of the inner cantilever 4 after shearing, when the set difference is negative, it can be considered that the position of the inner cantilever 4 is slightly lower than that of the outer fitting foot 6; when the set difference is positive, it can be considered that the position of the inner cantilever 4 is slightly higher than that of the outer fitting foot 6; when the set difference is 0mm, it can be considered that the opposite ends of the inner cantilever 4 and the outer fitting foot 6 are on the same horizontal plane, thus being compatible with various production process requirements. That is, in different assembly environments, the length of the inner cantilever 4 relative to the side wall of the main body shell 1 can be flexibly adjusted to adapt to the number of turns of the lead connector 31, further improving the reliability of the production process.

[0044] In one embodiment, in the first direction, a predetermined interval is maintained between the inner cantilever 4 and the outer mating foot 6 (e.g., ...). Figure 3 As indicated by the C mark, the set interval range includes 1.5mm to 4.1mm. Based on the set interval range, the distance between the inner cantilever 4 and the outer mating foot 6 is effectively constrained, providing sufficient operating space for the interval range between the inner cantilever 4 and the outer mating foot 6, ensuring high precision in the welding process. At the same time, a reasonable interval range can reduce the electromagnetic coupling effect between the inner cantilever 4 and the outer mating foot 6, reduce the influence of parasitic parameters, and thus improve the electrical performance stability of the network transformer, especially in high-frequency application scenarios. In addition, within the designed interval range, the inner cantilever 4 and the outer mating foot 6 can effectively disperse welding heat, reduce deformation, solder joint cracking and other problems caused by heat concentration during the welding process, thereby improving the service life of the device.

[0045] Preferably, the inner cantilever 4 and the outer fitting foot 6 are integrally connected in the side wall of the main body shell 1, and the integrally connected inner cantilever 4 and outer fitting foot 6 have an overall C-shaped structure design, thereby maintaining a set interval range in structure, and the position of the inner cantilever 4 and the outer fitting foot 6 is fixed based on the setting of being embedded in the main body shell 1, ensuring that the outer fitting foot 6 is accurately connected to the external circuit, avoiding assembly errors caused by loosening or offset during the welding process of traditional connecting feet. That is, the main body shell 1 can provide stable support for the inner cantilever 4 and the outer fitting foot 6 through the side wall, improving its vibration resistance performance, especially suitable for high vibration environments such as vehicle communication equipment.

[0046] Optionally, the inner cantilever 4 and the outer mating foot 6 are staggered in the first direction. When using AOI (Automated Optical Inspection) to inspect the solder joints of the inner cantilever 4, the staggered arrangement of the inner cantilever 4 and the outer mating foot 6 in the first direction will not overlap, avoiding mutual obstruction. This ensures that the camera of the AOI device can clearly capture the details of each solder joint of the inner cantilever 4. In other words, the staggered arrangement creates a wider visual area, effectively preventing blind spots caused by the overlap of the inner cantilever 4 and the outer mating foot 6, thereby improving inspection accuracy and ensuring 100% AOI inspection.

[0047] On the other hand, the inner cantilever 4 and the outer mating foot 6 are arranged on the side wall of the main body housing 1. Specifically, the inner cantilever 4 and the outer mating foot 6 can be evenly arranged along the second direction on the side wall of the main body housing 1. Compared with the traditional network transformer pins, the network transformer of this application places the solder joints on the side wall of the main body housing 1. Even if a small amount of solder balls or solder dross is generated during soldering, these contaminants will naturally fall to the outside of the main body housing 1 and will not enter the winding coil 3 inside the main body housing 1, thereby eliminating the possibility of solder balls or solder dross affecting the insulation of the winding coil 3. At the same time, the solder joints are distributed on the side wall, which is conducive to the precise soldering of automated soldering equipment, reducing the rework rate caused by poor soldering, that is, reducing rework by manual intervention and improving the production efficiency of the device.

[0048] In one embodiment, in the first direction, the vertical projection area of ​​the guide protection groove 7 covers the vertical projection area of ​​the inner cantilever 4 and the lead connector 31, thereby ensuring that the lead connector 31 can have a relatively wide range of movement when it is connected to the inner cantilever 4 via the guide protection groove 7, and ensuring that the groove wall of the guide protection groove 7 will not obstruct or scratch the lead connector 31, thereby ensuring the connection effect between the inner cantilever 4 and the lead connector 31.

[0049] Preferably, a rounded corner is provided at the connection between the lower end of the main body shell 1 and the side wall within the guide protection groove 7. This avoids the risk of damage to the insulating varnish layer of the lead connector 31 caused by hard contact with the edge of the guide protection groove 7 when the lead connector 31 is led out from inside the main body shell 1 and bends to connect with the inner cantilever 4 of the side wall of the main body shell 1. It also eliminates the possibility of the lead connector 31 breaking under vibration or tension conditions during actual operation, thereby improving the quality of the network transformer.

[0050] In one embodiment, the network transformer also includes at least one auxiliary magnetic ring (not shown), which is disposed in the main housing 1 and spaced apart from the functional magnetic ring 2. The winding coil 3 is wound on the functional magnetic ring 2 and the auxiliary magnetic ring respectively and has several lead wire connectors 31. Depending on the actual environmental requirements, the network transformer can also be provided with at least one auxiliary magnetic ring, which is arranged spaced apart from the functional magnetic ring 2 to form a multi-magnetic ring structure. The functional magnetic ring 2 may include a transformer magnetic ring and the auxiliary magnetic ring may include a common-mode magnetic ring. Thus, the network transformer performs voltage conversion through the functional magnetic ring 2 and signal filtering through the auxiliary magnetic ring, thereby improving the overall performance of the device.

[0051] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A high-quality network transformer, characterized in that, include: The main body shell has at least one functional magnetic ring inside, and a winding coil is wound on the functional magnetic ring. The winding coil has several lead wire connectors leading out. An inner cantilever is provided, and several inner cantilever arms are arranged on the side wall of the main body shell. The end of the inner cantilever arm away from the main body shell is provided with a copper-exposed section. External mounting feet, a plurality of said external mounting feet extend from the lower end of the main body housing and correspond to the inner cantilever on the side wall of the main body housing, for connecting external electronic devices; A guide protection groove is formed on the main body shell and located between adjacent external fitting feet. The lead wire connector is electrically connected to the inner cantilever via the guide protection groove. The guide protection groove extends from the lower end of the main body shell to the side wall of the main body shell and gradually widens towards the inner cantilever.

2. The high-quality network transformer as described in claim 1, characterized in that, The guide protection groove has a set width range near one end of the inner cantilever, which includes 0.3mm to 2mm.

3. The high-quality network transformer as described in claim 1, characterized in that, The guide protection groove has a set width range near one end of the inner cantilever, the set width range including 0.5mm to 2.5mm.

4. The high-quality network transformer as described in claim 1, characterized in that, The lead connector is wound around the inner cantilever until the copper part of the break is exposed, and the lead connector is welded and fixed to the inner cantilever.

5. The high-quality network transformer as described in claim 4, characterized in that, The exposed copper portion of the fracture is parallel to the side wall of the main body shell, the cross-sectional profile of the exposed copper portion of the fracture is rectangular, and the cross-section of the exposed copper portion of the fracture has a designed size.

6. The high-quality network transformer as described in claim 1, characterized in that, The extension direction of the upper and lower ends of the main body shell is a first direction. On the vertical projection of the first direction, the exposed copper part of the fracture and the end of the external fitting foot away from the main body shell have a set difference range, which includes -2mm to 2mm.

7. The high-quality network transformer as described in claim 6, characterized in that, In the first direction, a set interval range is maintained between the inner cantilever and the outer fitting foot, the set interval range including 1.5mm to 4.1mm.

8. The high-quality network transformer as described in claim 6, characterized in that, In the first direction, the vertical projected area of ​​the guide protection groove covers the vertical projected area of ​​the inner cantilever and the lead wire connector.

9. The high-quality network transformer as described in claim 1, characterized in that, The guide protection groove is also provided with rounded corners at the connection between the lower end of the main body shell and the side wall.

10. The high-quality network transformer as described in claim 1, characterized in that, It also includes at least one auxiliary magnetic ring, which is disposed in the main body housing and spaced apart from the functional magnetic ring. The winding coils are respectively wound on the functional magnetic ring and the auxiliary magnetic ring and have several lead wire connectors leading out.

Images