Network transformer

Abstract

The invention is suitable for the technical field of electronic devices, and provides a network transformer which comprises a substrate, a magnetic core supporting assembly and a winding magnetic core. During installation, the main body part and the substrate can be arranged at an interval, meanwhile, the first end of the conductive connecting column is connected to the main body part, the second end of the conductive connecting column is connected to the substrate, and the second end can also be electrically connected with a conductive circuit on the substrate while being fixedly connected with the substrate. And then the winding magnetic cores are fixedly arranged on the main body part, the connecting ends of the winding magnetic cores are in one-to-one correspondence with the conductive connecting columns and are electrically connected with the conductive connecting columns, and the second ends of the conductive connecting columns are electrically connected with the conductive circuits on the substrate, so that the plurality of winding magnetic cores can be finally connected according to a preset circuit through the conductive circuits on the substrate. The components in the whole network transformer are connected into an integral structure, so that the connection and installation of the components in the network transformer are firmer, and the shock resistance and impact resistance of the network transformer are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic devices, and in particular relates to a network transformer. Background Art

[0002] A network transformer, also known as a network isolation transformer, is a device that uses the principle of electromagnetic induction to change AC voltage. It is mainly used in network switches, routers, modems, network cards and hubs for level signal coupling. First, it can enhance the signal and increase its transmission distance. Second, it isolates the chip end from the outside, greatly enhances the anti-interference ability, and adds a great protection to the chip. Third, when connected to network ports of different levels, it will not affect each other's equipment. With the development of the electronic communication industry, the performance requirements for network transformers are getting higher and higher. The existing network transformers have poor seismic and impact resistance, and are difficult to adapt to the development of the electronic communication industry. Summary of the invention

[0003] The object of the present invention is to provide a network transformer, aiming to solve the technical problem that the network transformer in the prior art has poor anti-seismic performance and anti-impact performance when in use.

[0004] The present invention is implemented in this way: a network transformer, comprising:

[0005] A substrate having a conductive circuit thereon;

[0006] A magnetic core support component, the magnetic core support component comprising a main body and a plurality of conductive connection pillars, the main body is spaced apart from the substrate, a first end of the conductive connection pillar is connected to the main body, a second end of the conductive connection pillar is connected to the substrate and is electrically connected to the conductive circuit;

[0007] There are multiple winding magnetic cores, all of which are fixed on the main body. The winding magnetic cores all have connecting ends, and the connecting ends all correspond to the conductive connecting posts one by one and are electrically connected.

[0008] In an optional embodiment, a receiving groove is provided on the main body, the winding core is arranged in the receiving groove, the area in the receiving groove except the winding core is filled with adhesive, and the winding core is fixed to the receiving groove by the adhesive.

[0009] In an optional embodiment, there are multiple core support assemblies, and the multiple core support assemblies are arranged along a first direction, and each of the core support assemblies is provided with multiple winding cores, and the multiple winding cores on each core support assembly are arranged in sequence and spaced apart along a second direction, and the first direction is arranged at an angle to the second direction.

[0010] In an optional embodiment, the number of the accommodating grooves is two, and the two accommodating grooves are respectively located on two sides of the main body along the first direction.

[0011] In an optional embodiment, along the first direction, the main bodies in two adjacent magnetic core support assemblies abut against each other, and abutment protrusions are provided on the sides of the main bodies facing the adjacent main bodies, and the abutment protrusions are provided around the accommodating groove.

[0012] In an optional embodiment, the winding magnetic core includes a magnetic ring and a wire group, and the wire group is wound around the magnetic core in a manner of winding multiple strands of twisted wire.

[0013] In an optional embodiment, the network transformer further comprises a protective shell having an installation opening, the substrate cover is disposed on the installation opening, and is surrounded by the protective shell to form an installation space for accommodating the magnetic core support assembly.

[0014] In an optional embodiment, a clamping structure is provided on the protective shell, and the clamping structure is used to connect the protective shell with the magnetic core support assembly when the substrate cover is arranged on the installation opening, so as to fix the substrate and the protective shell to each other.

[0015] In an optional embodiment, the clamping structure includes a clamping protrusion protruding from the inner wall of the protective shell, and the main body has a clamping surface, and the clamping protrusion is used to abut against the clamping surface when the substrate cover is arranged on the installation opening.

[0016] In an optional embodiment, a positioning post is provided on the protective shell, and the positioning post is arranged in a direction perpendicular to the substrate, and a plug-in structure is also provided on the magnetic core support assembly. The positioning post is used to be plugged into the plug-in structure when the substrate cover is arranged on the installation opening, so as to prevent the protective shell from sliding in a direction parallel to the substrate.

[0017] The technical effect of the present invention relative to the prior art is: a conductive circuit is arranged on the substrate, and the magnetic core support assembly is divided into two parts, namely, a main body and a conductive connection column. During installation, the main body and the substrate can be spaced apart, and at the same time, the first end of the conductive connection column is connected to the main body, and the second end of the conductive connection column is connected to the substrate, and the second end can be electrically connected to the conductive circuit on the substrate while being fixedly connected to the substrate. Then, the winding magnetic core is fixedly arranged on the main body, and the connection ends of the winding magnetic core correspond to and are electrically connected to the conductive connection column one by one. Since the second end of the conductive connection column is electrically connected to the conductive circuit on the substrate, multiple winding magnetic cores can be connected according to a preset circuit through the conductive circuit on the substrate. Compared with the network transformer in the prior art, the winding core is installed on the main body of the core support assembly, and then the main body is connected and installed on the substrate through a conductive connecting column. While the winding core is fixed, the electrical connection between the winding core and the substrate is also achieved, so that the components in the entire network transformer are connected into an integral structure, thereby making the connection and installation of various components in the network transformer more secure, and improving the seismic resistance and impact resistance of the network transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 is a schematic diagram of the structure of a network transformer provided by an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of the structure of a network transformer provided by an embodiment of the present invention with the protective casing removed;

[0021] Figure 3 is a structural schematic diagram of a magnetic core support assembly used in an embodiment of the present invention;

[0022] Figure 4 is a schematic structural diagram of a winding magnetic core used in an embodiment of the present invention;

[0023] Figure 5 It is a schematic structural diagram of a network transformer provided by an embodiment of the present invention with a protective substrate removed;

[0024] Figure 6 yes Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 7is a schematic cross-sectional structural diagram of a network transformer provided in an embodiment of the present invention;

[0026] Figure 8 yes Figure 7 A schematic diagram of the enlarged structure at B in the middle;

[0027] Fig. 9 4 is a circuit diagram of a network transformer provided in an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1. Base plate; 2. Magnetic core support assembly; 21. Main body; 22. Conductive connecting column; 23. Accommodating groove; 24. Snap-fit ​​surface; 25. Abutment protrusion; 26. Plug-in structure; 3. Winding core; 31. Magnetic ring; 32. Wire group; 4. Protective shell; 5. Snap-fit ​​structure; 51. Snap-fit ​​protrusion; 6. Positioning column. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 a limitation on the present invention.

[0032] In this embodiment, according to Figure 1 and Figure 2 The XYZ rectangular coordinate system established in the definition is: the side located in the positive direction of the X axis is defined as the front, and the side located in the negative direction of the X axis is defined as the back; the side located in the positive direction of the Y axis is defined as the left, and the side located in the negative direction of the Y axis is defined as the right; the side located in the positive direction of the Z axis is defined as the top, and the side located in the negative direction of the Z axis is defined as the bottom.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0036] Please refer to Figures 1 to 4 As shown, in an embodiment of the present invention, a network transformer is provided, and the network transformer includes a substrate 1, a core support assembly 2, and a winding core 3. The substrate 1 has a conductive circuit. The core support assembly 2 includes a main body 21 and a plurality of conductive connecting columns 22, the main body 21 is spaced apart from the substrate 1, the first end of the conductive connecting column 22 is connected to the main body 21, the second end of the conductive connecting column 22 is connected to the substrate 1, and is electrically connected to the conductive circuit. There are a plurality of winding cores 3, and the plurality of winding cores 3 are all fixed on the main body 21, and the winding cores 3 all have connection ends, and the connection ends all correspond to the conductive connecting columns 22 one by one and are electrically connected.

[0037] Specifically, the substrate 1 refers to a plate-like component with a certain thickness, and there is a conductive circuit on the substrate 1, and the conductive circuit can be set according to the design. The substrate 1 can directly adopt a PCB (Printed Circuit Board) board, and the main body of the substrate 1 can be made of insulating materials such as glass fiber and epoxy resin, and a conductive circuit is etched on the insulating material. The setting of the substrate 1 provides electrical connection and physical support for electronic components. The magnetic core support assembly 2 refers to a component with a certain volume, and the main body 21 can be made of a material with good high temperature resistance and impact resistance, such as bakelite or PPS (Polyphenylene Sulfide). The conductive connecting column 22 refers to a columnar component with a certain height. The conductive connecting column 22 is usually made of metal material, so that the conductive connecting column 22 can have a certain strength while being able to perform electrical connection. The first end of the conductive connection column 22 can be fixedly connected to the main body 21 by means of snap connection, thread connection or pre-embedded, and the second end of the conductive connection column 22 can be connected to the substrate 1 by welding, and both can be kept fixed while achieving electrical connection. The winding core 3 refers to an important component in the transformer. Multiple winding cores 3 are connected according to a certain circuit to achieve the purpose of increasing or reducing the voltage. The winding core 3 can be connected to the main body 21 by snap connection, bonding or fastener connection.

[0038] The network transformer provided by the embodiment of the present invention has a conductive circuit arranged on the substrate 1, and the magnetic core support assembly 2 is divided into two parts, namely, a main body 21 and a conductive connection column 22. During installation, the main body 21 can be spaced apart from the substrate 1, and the first end of the conductive connection column 22 is connected to the main body 21, and the second end of the conductive connection column 22 is connected to the substrate 1, and the second end can be electrically connected to the conductive circuit on the substrate 1 while being fixedly connected to the substrate 1. Then, the winding magnetic core 3 is fixedly arranged on the main body 21, and the connection ends of the winding magnetic core 3 are all in one-to-one correspondence with the conductive connection column 22 and are electrically connected. Since the second end of the conductive connection column 22 is electrically connected to the conductive circuit on the substrate 1, multiple winding magnetic cores 3 can be connected according to a preset circuit through the conductive circuit on the substrate 1. Compared with the network transformer in the prior art, the winding core 3 is installed on the main body 21 of the core support assembly 2, and then the main body 21 is connected and installed on the substrate 1 through the conductive connecting column 22. While the winding core 3 is fixedly installed, the electrical connection between the winding core 3 and the substrate 1 is also achieved, so that the components in the entire network transformer are connected into an integral structure, thereby making the connection and installation of each component in the network transformer more secure, improving the seismic resistance of the network transformer, and also improving the impact resistance of the network transformer.

[0039] In one embodiment, see Figure 3 , a receiving groove 23 is provided on the main body 21, and the winding core 3 is arranged in the receiving groove 23. The area in the receiving groove 23 except the winding core 3 is filled with adhesive, and the winding core 3 is fixed to the receiving groove 23 by the adhesive. Specifically, the receiving groove 23 refers to a groove structure with a certain depth, and the receiving groove 23 is recessed on the surface of the main body 21. Adhesive refers to a substance that can connect two or more objects together through surface adhesion. The adhesive can be epoxy resin glue, acrylate glue or polyurethane glue, etc. The adhesive can also use a two-component potting glue, that is, a system composed of a mixture of two different components, usually composed of a first component and a second component. The first component is generally a base resin, such as epoxy resin, silicone resin, etc. These resins provide good adhesion, insulation and mechanical properties. The second component is a curing agent, whose function is to react chemically with the first component to cure the glue. For example, in the epoxy resin two-component potting glue, the first component is epoxy resin, and the second component is an amine curing agent. After the two are mixed, a cross-linking reaction will occur to form a three-dimensional network structure. In this embodiment, by providing a receiving groove 23 on the main body 21, when the winding core 3 is installed, the winding core 3 can be pre-pasted on the inner wall of the receiving groove 23 through a small amount of adhesive, and then the adhesive is filled in the area of ​​the receiving groove 23 except the winding core 3. The uncured adhesive can be limited by the provision of the receiving groove 23, and the winding core 3 can be fixed in the receiving groove 23 as a whole after the adhesive hardens, so that the fixing of the winding core 3 is more firm and reliable.

[0040] In an alternative embodiment, see Figure 3 , there are multiple accommodating grooves 23, and the multiple accommodating grooves 23 are all recessed on the surface of the main body 21. Specifically, there are multiple accommodating grooves 23, and the number of accommodating grooves 23 can match the number of winding magnetic cores 3, so that a winding magnetic core 3 is arranged in each accommodating groove 23. It is also possible to arrange multiple winding magnetic cores 3 in each accommodating groove 23, and the multiple winding magnetic cores 3 are arranged at intervals in the accommodating grooves 23, so that the arrangement of the winding magnetic cores 3 on the main body 21 can be more neat and standardized.

[0041] In one embodiment, see Figure 2, the number of the core support components 2 is multiple, the multiple core support components 2 are arranged along the first direction, and each core support component 2 is provided with multiple winding cores 3, the multiple winding cores 3 on each core support component 2 are arranged in sequence along the second direction, and the first direction and the second direction are arranged at an angle. Specifically, the angle between the first direction and the second direction can be a right angle, wherein the first direction can be the length direction of the substrate 1, and the second direction can be the width direction of the substrate 1, by setting the number of the core support components 2 to multiple, and uniformly distributing the multiple winding cores 3 on the multiple core support components 2. At the same time, the multiple core support components 2 are arranged along the first direction, and the multiple winding cores 3 on each core support component 2 are arranged in sequence along the second direction. The arrangement of the multiple winding cores 3 in the network transformer can be more reasonable under the premise of ensuring firm installation, thereby saving the volume occupied by the winding cores 3 and the core support components 2 in the network transformer, and further reducing the overall volume of the network transformer.

[0042] In one embodiment, see Figure 2 , the number of the accommodating grooves 23 is two, and the two accommodating grooves 23 are respectively located on both sides of the main body 21 along the first direction. Specifically, the accommodating grooves 23 are respectively located on both sides of the main body 21 along the first direction, and when the main body 21 is connected to the substrate 1 through the conductive connecting column 22, the distance between each accommodating groove 23 and the substrate 1 is kept consistent, so that after the winding core 3 is installed inside the accommodating groove 23, the distance between the winding core 3 and the substrate 1 can be kept consistent, and the winding cores 3 can be distributed in the same plane. Thereby, the multiple winding cores 3 in the network transformer are arranged more reasonably under the premise of ensuring firm installation, thereby saving the volume occupied by the winding core 3 and the core support assembly 2 in the network transformer.

[0043] In one embodiment, see Figure 2, along the first direction, the main bodies 21 of two adjacent magnetic core support components 2 abut against each other, and the main body 21 is provided with an abutting protrusion 25 on the side of the main body 21 facing the adjacent main body 21, and the abutting protrusion 25 is arranged around the accommodating groove 23. Specifically, the abutting protrusion 25 refers to a protrusion structure with a certain height, and the abutting protrusion 25 is usually formed integrally with the main body 21, for example, it can be integrally formed by injection molding or machining. In this embodiment, since a plurality of magnetic core support components 2 are arranged in sequence along the first direction, at this time, along the first direction, the main bodies 21 of two adjacent magnetic core support components 2 abut against each other, so that the magnetic core support components 2 can be connected and installed on the substrate 1, and can rely on each other for support with the adjacent magnetic core support groups, so that the plurality of magnetic core support groups form a relatively stable overall structure, avoiding the shaking of the magnetic core support components 2, and making the connection between the magnetic core support components 2 and the substrate 1 more firm and stable. In addition, an abutment protrusion 25 is provided on the side of the main body 21 facing the adjacent main body 21, and the end of the abutment protrusion 25 is higher than the side of the main body 21 and has an abutment plane. Two adjacent magnetic core support components 2 are abutted by the abutment protrusion 25, which avoids the unevenness of the side of the main body 21 after the adhesive is filled in the accommodating groove 23, thereby avoiding the phenomenon of unstable abutment between the two adjacent main body parts 21, and making the abutment between the two adjacent main body parts 21 more stable.

[0044] In an alternative embodiment, see Figure 3 , on the same main body 21, two adjacent abutting protrusions 25 are spaced apart from each other. Specifically, by spacing apart the two adjacent abutting protrusions 25, after the two magnetic core support components 2 abut against each other, a connecting channel can be formed between the two main bodies 21, so that the non-contact area between the two main bodies 21 can be connected to the outside.

[0045] In one embodiment, see Figure 4, the winding core 3 includes a magnetic ring 31 and a wire group 32, and the wire group 32 is wound on the magnetic core in a multi-strand twisted wire winding manner. Specifically, the magnetic ring 31 refers to a structural component that plays a key supporting and magnetic guiding role in the electromagnetic device. It is mainly used to fix the coil winding and provide a low magnetic resistance path for the magnetic flux, so that the magnetic field can be more effectively concentrated and guided, thereby enhancing the performance of the electromagnetic device. The wire group 32 refers to a wire structure coated with an insulating layer on the outside of the metal, and the winding core 3 is formed by winding the wire group 32 on the outside of the magnetic ring 31. Multi-strand twisted wire winding refers to a winding method in which multiple wires are twisted together and then wound on the outside of the magnetic ring 31. In this embodiment, by winding the wire group 32 on the magnetic core in a multi-strand twisted wire winding manner, the coupling degree of each winding on the winding core 3 can be improved, the insertion loss of the network transformer can be reduced, and the network transformer can meet the performance requirement of low insertion loss less than 1dB.

[0046] In an alternative embodiment, see Figure 2 The number of winding cores 3 is 16 groups, 8 groups are used for signal transmission, and 8 groups are used for signal reception, so that the network transformer meets the 10 Gigabit transmission characteristics.

[0047] In one embodiment, see Figure 5 The network transformer further includes a protective shell 4, which has an installation opening. The substrate 1 is covered on the installation opening, and the protective shell 4 and the protective shell 4 are arranged to form an installation space for accommodating the magnetic core support assembly 2. Specifically, the protective shell 4 refers to a shell-shaped component with a certain accommodation space, and the protective shell 4 also has an installation opening. By covering the substrate 1 on the installation opening, the substrate 1 and the protective shell 4 are arranged to form an installation space for accommodating the magnetic core support assembly 2. After the magnetic core support assembly 2 and the winding magnetic core 3 are installed on the substrate 1, the protective shell 4 can protect the magnetic core support assembly 2 and the winding magnetic core 3.

[0048] In an alternative embodiment, see Figure 5 In the installation space, the area other than the magnetic core support assembly 2 and the winding magnetic core 3 may also be filled with adhesive. Specifically, the adhesive may be epoxy resin or the like. After the adhesive hardens, the inside of the network transformer may form an integral structure, so that the network transformer has better structural strength, which may significantly improve the reliability and environmental adaptability of the product.

[0049] In a specific embodiment, see Figure 2The insulation layer of the wire is a polyurethane type with thickened paint film, so that the wire in the wire group 32 has a temperature resistance of 180°C and has good wear resistance and chemical resistance. The magnetic ring 31 in the winding core 3 is made of a material with a Curie temperature characteristic greater than 135°C, such as a manganese-zinc ferrite material. The material of the substrate 1 and the protective shell 4 can be made of a material with a temperature resistance greater than 260°C. For example, the substrate 1 can be made of a high-temperature resistant glass fiber board with a melting temperature of up to 400°C, which can adapt to long-term work in high temperature, high humidity and mold environments. The protective shell 4 can be made of materials such as bakelite or PPS (PolyphenyleneSulfide) with a melting temperature of up to 410°C, which can adapt to long-term work in an environment of 180°C and has strong chemical resistance. The adhesive can be epoxy resin, and the temperature resistance of epoxy resin is -65°C to 200°C. Through the above material selection, the entire network transformer can work normally in the range of -55℃ to 150℃, ensuring that the network transformer has good thermal stability and thermal reliability, which can significantly improve the reliability and environmental adaptability of the product, and also enable the network transformer to meet environmental requirements such as moisture resistance and mildew resistance.

[0050] In one embodiment, see Figure 5 , a clamping structure 5 is provided on the protective shell 4, and the clamping structure 5 is used to connect the protective shell 4 with the magnetic core support assembly 2 when the substrate 1 is covered on the installation opening, so as to fix the substrate 1 and the protective shell 4 to each other. Specifically, the clamping structure 5 refers to a component or structure that fixes two or more objects to each other. In this embodiment, when the substrate 1 is covered on the installation opening, the protective shell 4 can be connected to the magnetic core support assembly 2 through the clamping structure 5. Since the magnetic core support assembly 2 is connected to the substrate 1 through the conductive connecting column 22, when the protective shell and the magnetic core support assembly 2 are connected and clamped to each other, the protective shell 4 is also relatively fixed to the position of the substrate 1, so that the connection and fixation between the protective shell 4 and the magnetic core support assembly 2 and the substrate 1 can be made more firmly.

[0051] In one embodiment, see Figure 5The clamping structure 5 includes a clamping protrusion 51 protruding on the inner wall of the protective shell 4, and the main body 21 has a clamping surface 24, and the clamping protrusion 51 is used to abut against the clamping surface 24 when the substrate 1 is covered on the installation opening. Specifically, the clamping protrusion 51 refers to a protrusion structure with a certain height, and the clamping protrusion 51 can be a block, a column or a strip. The clamping protrusion 51 can be an integrally formed structure with the protective shell 4, and the clamping protrusion 51 can also be an additional component connected to the inner wall of the protective shell 4 by bonding, welding or fastener connection. The clamping surface 24 refers to a surface structure set on the main body 21, and the clamping surface 24 can be a plane structure or a curved surface structure. The clamping surface 24 is usually spaced and arranged opposite to the substrate 1. The clamping surface 24 can be the side of the main body 21 facing the substrate 1, or a groove structure can be set on the main body 21, and the clamping surface 24 is a part of the side wall of the groove structure. In this embodiment, by providing a snap-fitting protrusion 51 on the inner wall of the protective shell 4 and a snap-fitting surface 24 on the main body 21, when the substrate 1 is covered on the installation opening, the snap-fitting protrusion 51 can be abutted against the snap-fitting surface 24, so that the protective shell 4 and the main body 21 can be kept relatively fixed in a direction perpendicular to the substrate 1, and the substrate 1 and the protective shell 4 can be kept relatively fixed.

[0052] It should be noted that, when there are multiple core support components 2, the clamping surface 24 can be provided on the main body 21 of one of the core support components 2, or on the main bodies 21 of multiple core support components 2. The number and position of the clamping surfaces 24 can match the number and position of the clamping protrusions 51.

[0053] In an alternative embodiment, see Figure 5 The clamping protrusion 51 is a block-shaped structure, and a guiding slope is provided on the side of the clamping protrusion 51 facing the substrate 1. Specifically, the guiding slope refers to a slope structure that is arranged at an angle with the plate surface of the substrate 1, and the guiding slope can be a plane structure or a curved structure. In the present embodiment, by providing a guiding slope on the clamping protrusion 51, when the protective shell 4 is buckled onto the outside of the magnetic core support assembly 2, the guiding slope can be used to prevent the clamping protrusion 51 from abutting against the main body 21, so that the clamping protrusion 51 can smoothly slide over the main body 21 and enter the area between the substrate 1 and the clamping surface 24, thereby making the fixed assembly between the protective shell 4 and the substrate 1 more convenient and improving the production efficiency of the product.

[0054] In one embodiment, see Figure 6 and Figure 7, a positioning column 6 is provided on the protective shell 4, and the positioning column 6 is arranged in a direction perpendicular to the substrate 1, and a plug-in structure 26 is also provided on the magnetic core support assembly 2, and the positioning column 6 is used to be plugged into the plug-in structure 26 when the substrate 1 is covered in the installation opening, so as to prevent the protective shell 4 from sliding in a direction parallel to the substrate 1. Specifically, the positioning column 6 refers to a columnar structure with a certain length, and the positioning column 6 can be integrally formed with the protective shell 4, for example, by injection molding, machining, etc., and the positioning column 6 can also be an additional component connected to the inner wall of the protective shell 4 by welding, bonding or fasteners. The plug-in structure 26 refers to a structure with a certain accommodating space, and the plug-in structure 26 can be a plug-in hole or a plug-in slot. In this embodiment, by providing the positioning column 6 on the protective shell 4, the positioning column 6 is arranged in a direction perpendicular to the substrate 1. When the substrate 1 is covered in the installation opening, the positioning column 6 can be plugged into the plug-in structure 26, and the interaction between the positioning column 6 and the plug-in structure 26 can prevent the protective shell 4 from sliding in a direction parallel to the substrate 1.

[0055] In a specific embodiment, see Figure 7 The plug-in structure 26 may be a plug-in hole, wherein the plug-in hole may be arranged at the top of the main body 21. When there are multiple magnetic core support components 2, the plug-in hole may also be arranged in one part on one main body 21, and the other part on the adjacent main body 21.

[0056] In an alternative embodiment, see Figure 7 A guide spherical surface is provided at one end of the positioning post 6 facing the substrate 1. Specifically, the guide spherical surface refers to a surface structure with a spherical shape. In this embodiment, by providing a guide spherical surface at one end of the positioning post 6 facing the substrate 1, the positioning post 6 can be inserted into the plug-in structure 26 more conveniently through the guiding effect of the guide spherical surface, making it more convenient to assemble the protective housing 4 and the substrate 1.

[0057] The above are only preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for explaining the principles of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other specific implementations of the present invention that can be associated with by technicians in this field without creative labor, should be included in the scope of protection of the present invention.

Claims

1. A network transformer, characterized in that: include: A substrate having a conductive circuit thereon; A magnetic core support component, the magnetic core support component comprising a main body and a plurality of conductive connection pillars, the main body is spaced apart from the substrate, a first end of the conductive connection pillar is connected to the main body, a second end of the conductive connection pillar is connected to the substrate and is electrically connected to the conductive circuit; There are multiple winding magnetic cores, all of which are fixed on the main body. The winding magnetic cores all have connecting ends, and the connecting ends all correspond to the conductive connecting posts one by one and are electrically connected.

2. The network transformer according to claim 1, characterized in that: The main body is provided with a receiving groove, the winding magnetic core is arranged in the receiving groove, the area of ​​the receiving groove except the winding magnetic core is filled with adhesive, and the winding magnetic core is fixed in the receiving groove by the adhesive.

3. The network transformer according to claim 2, characterized in that: There are multiple core support assemblies, and the multiple core support assemblies are arranged along the first direction. Each of the core support assemblies is provided with multiple winding cores, and the multiple winding cores on each core support assembly are arranged in sequence along the second direction at intervals, and the first direction is arranged at an angle to the second direction.

4. The network transformer according to claim 3, characterized in that: The number of the accommodating grooves is two, and the two accommodating grooves are respectively located on two sides of the main body along the first direction.

5. The network transformer according to claim 4, characterized in that: Along the first direction, the main bodies in two adjacent magnetic core support components abut against each other, and abutment protrusions are provided on the sides of the main bodies facing the adjacent main bodies, and the abutment protrusions are provided around the accommodating grooves.

6. The network transformer according to claim 1, characterized in that: The winding magnetic core comprises a magnetic ring and a conductor group, and the conductor group is wound on the magnetic core in a manner of winding multiple strands of twisted wire.

7. The network transformer according to any one of claims 1 to 6, characterized in that: The network transformer further comprises a protective shell having an installation opening. The substrate cover is disposed on the installation opening and is surrounded by the protective shell to form an installation space for accommodating the magnetic core support assembly.

8. The network transformer according to claim 7, characterized in that: The protective shell is provided with a clamping structure, and the clamping structure is used to connect the protective shell with the magnetic core support assembly when the substrate is covered on the installation opening, so as to fix the substrate and the protective shell to each other.

9. The network transformer according to claim 8, characterized in that: The clamping structure comprises a clamping protrusion convexly arranged on the inner wall of the protective shell, and the main body has a clamping surface, and the clamping protrusion is used to abut against the clamping surface when the substrate cover is arranged on the installation opening.

10. The network transformer according to claim 9, characterized in that: A positioning post is provided on the protective shell, and the positioning post is arranged in a direction perpendicular to the substrate. A plug-in structure is also provided on the magnetic core support assembly. The positioning post is used to be plugged into the plug-in structure when the substrate cover is arranged on the installation opening to prevent the protective shell from sliding in a direction parallel to the substrate.

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