A network transformer housing structure and a network transformer

Abstract

This application discloses a network transformer housing structure and a network transformer. The housing structure includes a shell and partitions. The shell has an accommodating cavity, which includes an adjacent first region and a second region. The first region is used to house the transformer magnetic rings in the magnetic ring assembly, and the second region is used to house the common-mode choke magnetic rings in the magnetic ring assembly. Several pin groups are arranged on the upper part of the outer walls on both sides of the shell. The number of partitions corresponds to the number of magnetic ring assemblies and is spaced apart at the boundaries of the first and second regions. Each partition also has a connecting terminal. The gaps between adjacent partitions allow wires from the corresponding magnetic ring assemblies to pass through. The connecting terminals are used for connecting the taps of the corresponding magnetic ring assemblies. This application avoids the risk of short circuits caused by direct contact between taps or insulation damage, improving the safety of the network transformer.

Description

Technical Field

[0001] This application relates to the field of transformer technology, and in particular to a network transformer housing structure and a network transformer. Background Technology

[0002] In network communication equipment, network transformers often integrate multiple magnetic ring assemblies to achieve signal transmission and anti-interference functions. In existing technology, taps are needed to electrically connect the transformer coils of the magnetic ring assembly to the common-mode choke coils. Typically, the taps are fixed using soldering and then covered with adhesive for insulation. However, this approach has significant drawbacks: due to the compact space and lack of physical isolation between adjacent magnetic ring assemblies, short circuits between taps are easily caused if the insulation layer of the solder or adhesive is partially damaged or insufficiently thick. Furthermore, the taps are directly exposed inside the housing, and their spacing is limited by the precision of the magnetic ring assembly layout, making precise control difficult. If the spacing is too small, it can lead to a decrease in the withstand voltage between coils, and in severe cases, cause equipment failure. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a network transformer housing structure and a network transformer, which can avoid the risk of short circuits caused by direct contact between taps or damage to the insulation layer, thereby improving the safety of network transformer use.

[0004] In a first aspect, this application provides a network transformer housing structure for encapsulating multiple magnetic ring assemblies, including:

[0005] The housing has an accommodating cavity, which includes an adjacent first region and a second region. The first region is used to place the transformer magnetic ring in the magnetic ring group, and the second region is used to place the common mode choke magnetic ring in the magnetic ring group. Several pin groups are provided on the upper part of the outer walls on both sides of the housing.

[0006] The number of partitions corresponds to the number of magnetic ring groups, and they are respectively spaced at the boundary between the first region and the second region. Each partition is also provided with a connecting terminal. The gap between adjacent partitions is used for the wires in the corresponding magnetic ring groups to pass through. The connecting terminal is used for the taps of the corresponding magnetic ring groups to be wound and connected.

[0007] The network transformer housing structure according to the first aspect of this application has at least the following advantages: the housing of the network transformer housing structure has an accommodating cavity, which is divided into an adjacent first region and a second region, respectively for placing the transformer magnetic ring and the common mode choke magnetic ring in the magnetic ring group; a plurality of pin groups are provided on the upper part of the outer walls on both sides of the housing; at the same time, the housing is provided with partitions corresponding to the number of magnetic ring groups, the partitions are spaced apart at the junction of the first region and the second region, the partitions are provided with connecting terminals, the gap between adjacent partitions allows the wires in the corresponding magnetic ring group to pass through, and the connecting terminals are used for the taps of the corresponding magnetic ring group to be wound and connected. With the above structure, the partition forms a physical separation at the boundary between the first and second regions where the transformer magnetic ring and common-mode choke magnetic ring are located. In addition, the taps are no longer directly exposed or simply fixed by soldering or glue, but are wound around and connected to the connecting terminals of the partition. The partition effectively separates the taps of adjacent magnetic ring groups in space. The tap spacing is precisely controlled by the setting position of the partition and the layout of the connecting terminals, avoiding the risk of short circuits caused by insufficient tap spacing or insulation failure. It also solves the problem of poor withstand voltage caused by insufficient spacing between coils, thus improving the safety of the network transformer.

[0008] According to some embodiments of the first aspect of this application, the partition plate is provided with a mounting groove, and the connecting terminal is inserted into the mounting groove.

[0009] According to some embodiments of the first aspect of this application, one of the partitions located at the end is connected to one side inner wall of the housing, and the other side inner wall of the housing is further provided with a fixing block at the junction of the first region and the second region, and there is a gap between the fixing block and the other partition located at the end.

[0010] According to some embodiments of the first aspect of this application, the housing, the partition, and the fixing block are integrally formed.

[0011] According to some embodiments of the first aspect of this application, the pin group includes an outer pin and an inner pin, the inner pin being disposed on the top of the housing, and the outer pin being disposed on the outer side wall of the housing.

[0012] According to some embodiments of the first aspect of this application, a limiting slot is formed on the inner pin.

[0013] According to some embodiments of the first aspect of this application, the housing is further provided with a first boss and a second boss, the first boss being located on one side wall of the housing, the second boss being located on the other side wall of the housing, and the first boss and the second boss being disposed opposite to each other.

[0014] According to some embodiments of the first aspect of this application, the interior of the housing is provided with a metal shielding layer.

[0015] Secondly, this application also provides a network transformer, comprising:

[0016] The network transformer housing structure as described in any embodiment of the first aspect;

[0017] Multiple magnetic ring groups are placed inside the accommodating cavity and connected to the corresponding pin groups;

[0018] An insulating potting layer is formed within the accommodating cavity to fix and protect the magnetic ring assembly within the accommodating cavity.

[0019] According to some embodiments of the second aspect of this application, the magnetic ring assembly includes a transformer magnetic ring, a common-mode choke magnetic ring, a first primary winding, a second primary winding, a first secondary winding, a second secondary winding, and an intermediate secondary winding; the transformer magnetic ring is disposed in the first region of the accommodating cavity, and the common-mode choke magnetic ring is disposed in the second region of the accommodating cavity;

[0020] The first primary winding, the second primary winding, the first secondary winding, and the second secondary winding are twisted together to form a four-core twisted wire and wound on the transformer magnetic ring. The beginning end of the first primary winding serves as the first connection end, the end end of the second primary winding serves as the second connection end, and the end end of the first primary winding is connected to the beginning end of the second primary winding to serve as the third connection end. The beginning and end ends of the first secondary winding and the beginning and end ends of the second secondary winding pass through the gaps between the corresponding partitions.

[0021] The taps are formed by soldering and applying adhesive to the end of the first secondary winding, the beginning of the second secondary winding, and the beginning of the intermediate secondary winding. The beginning of the first secondary winding, the end of the second secondary winding, and the intermediate secondary winding are twisted together to form a three-core twisted wire, which is wound around the common-mode choke magnetic ring and serves as the fourth, fifth, and sixth connection terminals, respectively. The taps are wound around the connection terminals, and the first, second, third, fourth, fifth, and sixth connection terminals are respectively connected to the corresponding pin groups.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] Additional aspects and advantages of this application will become apparent and readily understood in conjunction with the following description of the embodiments, in which:

[0024] Figure 1This is a schematic diagram of the structure of the network transformer housing provided in some embodiments of this application;

[0025] Figure 2 Top view of the network transformer housing structure provided in some embodiments of this application;

[0026] Figure 3 This is a schematic diagram of the structure of a magnetic ring assembly provided in some embodiments of this application;

[0027] Figure 4 Circuit topology diagrams of magnetic ring assemblies provided in some embodiments of this application;

[0028] Figure 5 This is a schematic diagram of the structure of a network transformer provided in some embodiments of this application.

[0029] The attached icons are numbered as follows:

[0030] Housing 100; accommodating cavity 110; first region 111; second region 112; first boss 121; second boss 122; partition 200; connecting terminal 210; fixing block 300; pin group 400; inner pin 410; limiting groove 411; outer pin 420; magnetic ring group 500; transformer magnetic ring 510; common mode choke magnetic ring 520; primary winding 530; secondary winding 540; intermediate secondary winding 550; primary winding 560; secondary winding 570; tap 580. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0032] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0033] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0034] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0035] In network communication equipment, network transformers often integrate multiple magnetic ring assemblies to achieve signal transmission and anti-interference functions. In existing technology, taps are needed to electrically connect the transformer coils of the magnetic ring assembly to the common-mode choke coils. Typically, the taps are fixed using soldering and then covered with adhesive for insulation. However, this approach has significant drawbacks: due to the compact space and lack of physical isolation between adjacent magnetic ring assemblies, short circuits between taps are easily caused if the insulation layer of the solder or adhesive is partially damaged or insufficiently thick. Furthermore, the taps are directly exposed inside the housing, and their spacing is limited by the precision of the magnetic ring assembly layout, making precise control difficult. If the spacing is too small, it can lead to a decrease in the withstand voltage between coils, and in severe cases, cause equipment failure.

[0036] Based on this, this application provides a network transformer housing structure and a network transformer to solve the above-mentioned technical problems. The technical solutions provided by this application will be described in detail below.

[0037] In a first aspect, this application provides a network transformer housing structure for encapsulating multiple magnetic ring groups 500. The network transformer housing structure includes a housing 100 and partitions 200. The housing 100 has an accommodating cavity 110, which includes an adjacent first region 111 and a second region 112. The first region 111 is used to place the transformer magnetic ring 510 in the magnetic ring group 500, and the second region 112 is used to place the common mode choke magnetic ring 520 in the magnetic ring group 500. Several pin groups 400 are provided on the upper part of the outer walls on both sides of the housing 100. The number of partitions 200 corresponds to the number of magnetic ring groups 500, and they are respectively spaced at the junction of the first region 111 and the second region 112. The partitions 200 are also provided with connecting terminals 210. The gaps on adjacent partitions 200 are used for wires in the corresponding magnetic ring group 500 to pass through, and the connecting terminals 210 are used for the taps 580 of the corresponding magnetic ring group 500 to be wound and connected.

[0038] The housing 100 of the network transformer housing structure has a receiving cavity 110, which is divided into an adjacent first region 111 and a second region 112, which are used to place the transformer magnetic ring 510 and the common mode choke magnetic ring 520 in the magnetic ring group 500, respectively. Several pin groups 400 are arranged on the upper part of the outer walls on both sides of the housing 100. At the same time, the housing 100 has partitions 200 corresponding to the number of magnetic ring groups 500 inside. The partitions 200 are spaced at the junction of the first region 111 and the second region 112. The partitions 200 are provided with connecting terminals 210. The gap between adjacent partitions 200 allows the wires in the corresponding magnetic ring group 500 to pass through. The connecting terminals 210 are used for the taps 580 of the corresponding magnetic ring group 500 to be wound and connected. Through the above structure, the partition 200 forms a physical separation at the junction of the first region 111 and the second region 112 where the transformer magnetic ring 510 and the common mode choke magnetic ring 520 are located. In addition, the taps 580 are no longer directly exposed or simply fixed by soldering or glue, but are wound around and connected to the connection terminals 210 of the partition 200. The partition 200 effectively separates the taps 580 of adjacent magnetic ring groups 500 in space. The spacing of the taps 580 is precisely controlled by the setting position of the partition 200 and the layout of the connection terminals 210, avoiding the risk of short circuit caused by insufficient spacing of the taps 580 or failure of insulation protection. It also solves the problem of poor withstand voltage caused by insufficient spacing between coils, and improves the safety of the network transformer.

[0039] Understandably, the partition 200 has a mounting groove, into which the connecting terminal 210 is inserted. This structure, with the mounting groove on the partition 200 and the connecting terminal 210 inserted therein, allows for precise positioning and mechanical fixation of the connecting terminal 210. This prevents displacement or loosening of the connecting terminal 210 during the winding of the tap 580, thus ensuring the spacing accuracy of the taps 580 after winding each magnetic ring group 500. It effectively avoids changes in the tap spacing caused by the offset of the connecting terminal 210, further strengthening the physical isolation effect of the partition 200 on the taps 580 and reducing the risk of contact between the taps 580 due to insecure fixing of the connecting terminal 210.

[0040] It is understood that one of the partitions 200 located at the end is connected to one side of the inner wall of the housing 100, and the other side of the inner wall of the housing 100 is provided with a fixing block 300 at the junction of the first region 111 and the second region 112. There is a gap between the fixing block 300 and the other partition 200 located at the end. On the one hand, the direct connection between the end partition 200 and the inner wall of the housing 100, and the support of the fixing block 300 on the other side, form a boundary fixation for the areas of the magnetic ring groups 500 on both sides, which enhances the structural stability of the partition 200 layout and prevents the partition 200 from shifting during the installation of the magnetic ring group 500 or the winding of the taps 580, thereby ensuring that the spacing accuracy of the taps 580 is not changed due to the shaking of the partition 200. On the other hand, the gap between the fixing block 300 and the end partition 200 provides a directional channel for the wires of the magnetic ring group 500 to pass through. The wires can be laid out in an orderly manner between the first area 111 and the second area 112 through this gap, avoiding the wires from getting tangled or squeezed with adjacent taps 580 or coils when laid across areas, and reducing the risk of reduced tap spacing or insulation wear caused by messy wiring.

[0041] It is understandable that the housing 100, partition 200 and fixing block 300 are integrally molded structures, which can improve the overall performance and production efficiency of the network transformer housing. At the same time, it can also make the positional accuracy of partition 200 and fixing block 300 within the housing 100 higher and the structural strength stronger, thereby ensuring that the installation area of ​​magnetic ring assembly 500 and the winding space of tap 580 are accurately separated, effectively avoiding problems such as changes in tap 580 spacing or poor coil withstand voltage caused by component displacement.

[0042] It is understood that the pin group 400 includes an outer pin 420 and an inner pin 410. The inner pin 410 is located on the top of the housing 100, and the outer pin 420 is located on the outer side wall of the housing 100. The inner pin 410 is located on the top of the housing 100, close to the first region 111 and the second region 112 where the magnetic ring group 500 is located, which facilitates docking with the magnetic ring group 500. The outer pin 420 is distributed on the outer side wall and can be directly soldered to the external circuit board. In the embodiments of this application, the magnetic ring assembly 500 is provided in 4 groups, and there are 24 inner pins 410. The 24 inner pins 410 are divided into two groups, each group having 12 inner pins 410. The inner pins 410 in each group are respectively disposed on the top surface of the two large sidewalls, and the two groups of inner pins 410 are aligned with each other. Similarly, there are also 24 outer pins 420. The 24 outer pins 420 are divided into two groups, each group having 12 outer pins 420. The outer pins 420 in each group are disposed on the outer surface of the large sidewall, and each outer pin 420 is aligned with each inner pin 410.

[0043] Understandably, a limiting groove 411 is provided on the inner pin 410. After the wire led from the magnetic ring assembly 500 is wound around the inner pin 410, the limiting groove 411 limits the wire, which facilitates subsequent soldering. In this embodiment, two limiting grooves 411 are provided, and the two limiting grooves 411 are located on both sides of the inner pin 410, which can further ensure the stability of the connection between the wire led from the magnetic ring assembly 500 and the inner pin 410.

[0044] Understandably, the housing 100 also includes a first boss 121 and a second boss 122. The first boss 121 is located on one side wall of the housing 100, and the second boss 122 is located on the other side wall of the housing, with the first boss 121 and the second boss 122 positioned opposite each other. The oppositely positioned first boss 121 and second boss 122 can form uniform force support on both sides of the housing 100, balancing the mechanical stress during installation and preventing cracking of the housing 100 or damage to internal components due to uneven local stress. This structurally improves the shock resistance and long-term reliability of the network transformer.

[0045] Understandably, the housing 100 has an internal metal shielding layer. On the one hand, the metal shielding layer can significantly enhance the ability to suppress electromagnetic interference, avoid signal distortion caused by electromagnetic interference, and ensure the integrity and stability of the signal during transmission. On the other hand, the combination of the metal shielding layer and the housing 100 greatly improves the mechanical strength and shock resistance of the housing, preventing the housing 100 from deforming during transportation, installation, or long-term use. This provides more robust physical protection for core components such as the magnetic ring assembly 500 and the connecting terminal 210, maintaining the spacing accuracy of the tap 580 winding and the withstand voltage distance between coils, while also enhancing the structural reliability of the network transformer in complex environments.

[0046] Secondly, this application also provides a network transformer, including: a network transformer housing structure as described in any embodiment of the first aspect, a plurality of magnetic ring assemblies 500, and an insulating potting layer. The magnetic ring assemblies 500 are placed in a receiving cavity 110 and connected to corresponding pin assemblies 400. The insulating potting layer is formed in the receiving cavity 110 to fix and protect the magnetic ring assemblies 500 within the receiving cavity 110. The insulating potting layer forms a continuous protective layer, covering electrical connection areas such as taps 580 and pin assemblies 400. Combined with the physical separation of the housing structure, it provides double protection against external moisture, dust, and other impurities from eroding the internal circuitry, reducing the probability of short circuits caused by insulation failure. In addition, the housing 100 of the network transformer housing structure has a receiving cavity 110, which is divided into an adjacent first region 111 and a second region 112, which are used to place the transformer magnetic ring 510 and the common mode choke magnetic ring 520 in the magnetic ring group 500, respectively. Several pin groups 400 are provided on the upper part of the outer walls on both sides of the housing 100. At the same time, the housing 100 has partitions 200 corresponding to the number of magnetic ring groups 500 inside. The partitions 200 are spaced apart at the junction of the first region 111 and the second region 112. The partitions 200 are provided with connecting terminals 210. The gap between adjacent partitions 200 allows the wires in the corresponding magnetic ring group 500 to pass through. The connecting terminals 210 are used for the taps 580 of the corresponding magnetic ring group 500 to be wound and connected. Through the above structure, the partition 200 forms a physical separation at the junction of the first region 111 and the second region 112 where the transformer magnetic ring 510 and the common mode choke magnetic ring 520 are located. In addition, the taps 580 are no longer directly exposed or simply fixed by soldering or glue, but are wound around and connected to the connection terminals 210 of the partition 200. The partition 200 effectively separates the taps 580 of adjacent magnetic ring groups 500 in space. The spacing of the taps 580 is precisely controlled by the setting position of the partition 200 and the layout of the connection terminals 210, avoiding the risk of short circuit caused by insufficient spacing of the taps 580 or failure of insulation protection. It also solves the problem of poor withstand voltage caused by insufficient spacing between coils, and improves the safety of the network transformer.

[0047] It is understood that the magnetic ring assembly 500 includes a transformer magnetic ring 510, a common-mode choke magnetic ring 520, a first primary winding 560, a second primary winding 570, a first secondary winding 530, a second secondary winding 540, and an intermediate secondary winding 550; the transformer magnetic ring 510 is disposed in the first region of the accommodating cavity, and the common-mode choke magnetic ring 520 is disposed in the second region of the accommodating cavity; the first primary winding 560, the second primary winding 570, the first secondary winding 530, and the second secondary winding 540 are twisted together to form a four-core twisted wire and wound around the transformer magnetic ring 510, with the beginning end of the first primary winding 560 serving as the first connection end, and the end of the second primary winding 570 serving as the second connection end, the end of the first primary winding 560 and the end of the second primary winding 570... The first end is connected and serves as the third connection end. The first and last ends of the first primary winding 530 and the first and last ends of the second primary winding 540 pass through the gap between the corresponding partitions. The last end of the first primary winding 530, the first end of the second primary winding 540, and the first end of the intermediate secondary winding 550 form a tap 580 by soldering. The first end of the first primary winding 530, the last end of the second primary winding 540, and the intermediate secondary winding 550 are twisted together to form a three-core twisted wire, which is wound around the common mode choke magnetic ring 520 and serves as the fourth, fifth, and sixth connection ends, respectively. The tap 580 is wound around the connection terminal, and the first, second, third, fourth, fifth, and sixth connection ends are connected to the corresponding pin groups, respectively.

[0048] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A network transformer housing structure, characterized by, Used to encapsulate multiple magnetic ring assemblies, including: The housing has an accommodating cavity, which includes an adjacent first region and a second region. The first region is used to place the transformer magnetic ring in the magnetic ring group, and the second region is used to place the common mode choke magnetic ring in the magnetic ring group. Several pin groups are provided on the upper part of the outer walls on both sides of the housing. The number of partitions corresponds to the number of magnetic ring groups, and they are respectively spaced at the boundary between the first region and the second region. Each partition is also provided with a connecting terminal. The gap between adjacent partitions is used for the wires in the corresponding magnetic ring groups to pass through. The connecting terminal is used for the taps of the corresponding magnetic ring groups to be wound and connected.

2. The network transformer housing structure of claim 1, wherein, The partition plate is provided with a mounting groove, and the connection terminal is inserted into the mounting groove.

3. The network transformer housing structure of claim 1, wherein, One of the partitions located at the end is connected to one side of the inner wall of the housing, and the other side of the inner wall of the housing is provided with a fixing block at the junction of the first region and the second region, and there is a gap between the fixing block and the other partition located at the end.

4. The network transformer housing structure of claim 2, wherein, The shell, the partition, and the fixing block are integrally formed.

5. The network transformer housing structure of claim 1, wherein, The pin group includes an outer pin and an inner pin. The inner pin is located on the top of the housing, and the outer pin is located on the outer side wall of the housing.

6. The network transformer housing structure of claim 5, wherein, A limiting slot is provided on the inner pin.

7. The network transformer housing structure of claim 1, wherein, The housing is further provided with a first boss and a second boss. The first boss is located on one side wall of the housing, and the second boss is located on the other side wall of the housing. The first boss and the second boss are arranged opposite to each other.

8. The network transformer housing structure of claim 1, wherein, The interior of the housing is equipped with a metal shielding layer.

9. A network transformer, characterized by include: The network transformer housing structure as described in any one of claims 1 to 8; Multiple magnetic ring groups are placed inside the accommodating cavity and connected to the corresponding pin groups; An insulating potting layer is formed within the accommodating cavity to fix and protect the magnetic ring assembly within the accommodating cavity.

10. The network transformer of claim 9, wherein, The magnetic ring assembly includes a transformer magnetic ring, a common-mode choke magnetic ring, a first primary winding, a second primary winding, a first secondary winding, a second secondary winding, and an intermediate secondary winding; the transformer magnetic ring is disposed in the first region of the accommodating cavity, and the common-mode choke magnetic ring is disposed in the second region of the accommodating cavity; The first primary winding, the second primary winding, the first secondary winding, and the second secondary winding are twisted together to form a four-core twisted wire and wound on the transformer magnetic ring. The beginning end of the first primary winding serves as the first connection end, the end end of the second primary winding serves as the second connection end, and the end end of the first primary winding is connected to the beginning end of the second primary winding to serve as the third connection end. The beginning and end ends of the first secondary winding and the beginning and end ends of the second secondary winding pass through the gaps between the corresponding partitions. The taps are formed by soldering and applying adhesive to the end of the first secondary winding, the beginning of the second secondary winding, and the beginning of the intermediate secondary winding. The beginning of the first secondary winding, the end of the second secondary winding, and the intermediate secondary winding are twisted together to form a three-core twisted wire, which is wound around the common-mode choke magnetic ring and serves as the fourth, fifth, and sixth connection terminals, respectively. The taps are wound around the connection terminals, and the first, second, third, fourth, fifth, and sixth connection terminals are respectively connected to the corresponding pin groups.

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