Network transformer
By placing the coil modules in different chambers within the network transformer and ensuring they do not overlap in the vertical plane, and by utilizing coils positioned along the vertical axis, the crosstalk problem between signal channels is solved, thereby improving the purity of signal conversion and anti-interference capability.
Patent Information
- Application Number
- CN202520060324.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-10
AI Technical Summary
In existing network transformers, there is a serious crosstalk problem among multiple signal channels.
Design a network transformer in which coil modules are respectively set in different chambers and do not overlap on a plane perpendicular to the first direction. By using the vertical arrangement of coil axes in different directions, the superposition of magnetic fields is reduced.
It effectively reduces crosstalk between multiple signal channels, improving the purity of signal conversion and anti-interference performance.
Smart Images
Figure CN223770932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformers, and more particularly to a network transformer. Background Technology
[0002] When transmitting data between different network devices, considering that different devices have different port levels, network transformers are usually used to convert signal levels. In the prior art, the adjacent coils of the network transformer are distributed in the same housing and arranged closely. When converting the level of high-frequency signals, crosstalk will occur between multiple signal channels. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a network transformer that can reduce crosstalk between multiple signal channels.
[0004] This utility model provides a network transformer, which includes: a housing with a first chamber and a second chamber arranged along a first direction; a first coil module disposed in the first chamber; and a second coil module disposed in the second chamber. On a plane perpendicular to the first direction, the orthographic projections of the first coil module and the second coil module do not overlap.
[0005] The network transformer provided by this embodiment of the invention has at least the following beneficial effects:
[0006] The first coil module and the second coil module are respectively disposed in the first chamber and the second chamber arranged along the first direction, and the orthographic projections of the first coil module and the second coil module do not overlap on the plane perpendicular to the first direction. This arrangement enables the magnetic field generated by the first coil module and the magnetic field generated by the second coil module to overlap and reduce each other in the adjacent part, thereby helping to reduce crosstalk between multiple signal channels.
[0007] In one embodiment of this implementation, the first coil module includes a first coil and a second coil, the second coil module includes a third coil and a fourth coil, the axis of the first coil is perpendicular to the axis of the fourth coil; and / or, the axis of the second coil is perpendicular to the axis of the third coil.
[0008] In one embodiment of this implementation, the first coil and the second coil are arranged along a second direction perpendicular to the first direction, and the third coil and the fourth coil are arranged along the second direction;
[0009] A third direction is defined as a direction perpendicular to the first direction and the second direction. On a plane perpendicular to the third direction, the orthographic projections of the first coil and the third coil are adjacent in the first direction, the orthographic projections of the second coil and the fourth coil are adjacent in the first direction, and the axis of the first coil is perpendicular to the axis of the third coil, and the axes of the second coil and the fourth coil are perpendicular.
[0010] In one embodiment of this implementation, the number of the first coil module and the second coil module are the same and there are multiple of each. The multiple first coil modules and the multiple second coil modules are arranged alternately along the first direction. On a plane perpendicular to the first direction, the orthographic projections of the multiple first coil modules at least partially overlap, and the orthographic projections of the multiple second coil modules at least partially overlap.
[0011] In one embodiment of this implementation, the housing includes an upper cover, an intermediate shell, and a bottom shell, with the first chamber formed on the intermediate shell and the second chamber formed on the bottom shell, and the upper cover closing the first chamber and the second chamber.
[0012] In one embodiment of this implementation, a metal layer is provided on the inner side of the upper cover.
[0013] In one embodiment of this implementation, the bottom shell, the middle shell, and the top cover are installed sequentially along a direction perpendicular to the first direction.
[0014] In one embodiment of this implementation, the intermediate shell has a mounting hole located on one side of the first chamber in the first direction, the bottom shell includes a mounting portion, the second chamber is opened in the mounting portion, and the mounting portion passes through the mounting hole.
[0015] In one embodiment of this implementation, the network transformer further includes a first lead group and a second lead group, wherein the first lead group is electrically connected to the first coil module, and the second lead group is electrically connected to the second coil module, and the first lead group and the second lead group are used for wiring.
[0016] In one embodiment of this implementation, the bottom shell has a first through hole that connects to the second chamber, and the middle shell has a second through hole that connects to the first chamber. The dimensions of the first through hole and the second through hole are both adapted to the lead wire group. The first lead wire group and the second lead wire group are respectively passed through the first through hole and the second through hole, and one end of the first lead wire group and one end of the second lead wire group are exposed on the same side of the bottom shell.
[0017] Additional aspects and advantages of this invention 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 the invention. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0019] Figure 1 This is a three-dimensional structural schematic diagram of a network transformer according to one embodiment of the present invention;
[0020] Figure 2 yes Figure 1 A schematic diagram of the network transformer breakdown;
[0021] Figure 3 yes Figure 1 A top view of the network transformer with the top cover removed;
[0022] Figure 4 yes Figure 1 A cross-sectional view of the network transformer with the top cover removed.
[0023] Figure label:
[0024] Housing 10; Top cover 11; Middle shell 12; First chamber 121; Mounting hole 122; First through hole 123; Bottom shell 13; Mounting part 131; Second chamber 132; Second through hole 133; First coil module 20; First coil 21; Second coil 22; Second coil module 30; Third coil 31; Fourth coil 32; First lead group 41; Second lead group 42; First direction 51; Second direction 52; Third direction 53; First projection surface 54; Second projection surface 55. Detailed Implementation
[0025] The embodiments of this utility model 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 utility model, and should not be construed as limiting this utility model.
[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.
[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "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 utility model in conjunction with the specific content of the technical solution.
[0029] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0030] Please see Figure 1 , Figure 2 and Figure 4 , Figure 1 This is a three-dimensional structural schematic diagram of a network transformer according to one embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the network transformer breakdown; Figure 4 yes Figure 1 A cross-sectional view of a network transformer with its top cover 11 removed. This utility model provides a network transformer, which includes a housing 10, a first coil module 20, and a second coil module 30. The housing 10 has a first chamber 121 and a second chamber 132 arranged along a first direction 51. The first coil module 20 is disposed in the first chamber 121; the second coil module 30 is disposed in the second chamber 132. On a plane perpendicular to the first direction 51, the orthographic projections of the first coil module 20 and the second coil module 30 do not overlap.
[0031] In this embodiment, the first coil module 20 and the second coil module 30 are used for level conversion of different signal channels, respectively. The housing 10 covers and isolates the first coil module 20 and the second coil module 30, placing them in different spaces. It is understood that by placing the first coil module 20 and the second coil module 30 in different spaces, it is beneficial to reduce magnetic field interference between them.
[0032] The first coil module 20 and the second coil module 30 are respectively disposed in the first chamber 121 and the second chamber 132 arranged along the first direction 51. On the plane perpendicular to the first direction 51, the orthographic projections of the first coil module 20 and the second coil module 30 do not overlap, thereby enabling the magnetic field generated by the first coil module 20 and the magnetic field generated by the second coil module 30 to overlap and reduce each other in the adjacent part, which is beneficial to reducing crosstalk between multiple signal channels.
[0033] In one embodiment of this implementation, reference is made to... Figure 2 and Figure 3 , Figure 3 yes Figure 1 The top view of the network transformer with the top cover 11 removed. The first coil module 20 includes a first coil 21 and a second coil 22, the axis of the first coil 21 being perpendicular to the axis of the second coil 22; and / or, the second coil module 30 includes a third coil 31 and a fourth coil 32, the axis of the third coil 31 being perpendicular to the axis of the fourth coil 32.
[0034] In one embodiment of this implementation, reference is made to... Figure 2 and Figure 3 , Figure 3 yes Figure 1 The top view of the network transformer with the top cover 11 removed. The first coil module 20 includes a first coil 21 and a second coil 22, and the second coil module 30 includes a third coil 31 and a fourth coil 32. The axis of the first coil 21 is perpendicular to the axis of the fourth coil 32; and / or, the axis of the second coil 22 is perpendicular to the axis of the third coil 31.
[0035] Specifically, the first coil 21 and the second coil 22 are spaced apart, with one being a primary coil and the other a secondary coil. Similarly, the third coil 31 and the fourth coil 32 are spaced apart, with one being a primary coil and the other a secondary coil. A plane perpendicular to the first direction 51 is the first projection plane 54. On the first projection plane 54, the orthographic projections of the primary and secondary coils in the first coil module 20 do not overlap with the orthographic projections of the primary and secondary coils in the second coil module 30. It can be understood that the secondary coil can generate a voltage under the influence of the magnetic field of the primary coil. By ensuring that the orthographic projections of the first coil module 20 and the second coil module 30 on the plane perpendicular to the first direction 51 do not overlap, the magnetic fields generated by the first coil module 20 and the second coil module 30 overlap and decrease in adjacent portions. This reduces the effect of the magnetic field generated by the primary coil in the first coil module 20 on the secondary coil in the second coil module 30, and also reduces the effect of the magnetic field generated by the primary coil in the second coil module 30 on the secondary coil in the first coil module 20.
[0036] Specifically, the first coil 21, the second coil 22, the third coil 31, and the fourth coil 32 all include a circular magnetic ring with a cable wound around it. The first chamber 121 includes a first mounting surface, which is the bottom wall of the first chamber. The first coil 21 and the second coil 22 are both mounted on the first mounting surface. The second chamber 132 includes a second mounting surface, which is the bottom wall of the second chamber. The third coil 31 and the fourth coil 32 are both mounted on the second mounting surface. It should be noted that the axis of the first coil 21 refers to the axis of its circular magnetic ring, the axis of the second coil 22 refers to the axis of its circular magnetic ring, the axis of the third coil 31 refers to the axis of its circular magnetic ring, and the axis of the fourth coil 32 refers to the axis of its circular magnetic ring. That is, the axis of the circular magnetic ring in the first coil 21 is perpendicular to the axis of the circular magnetic ring in the fourth coil 32, and the axis of the circular magnetic ring in the second coil 22 is perpendicular to the axis of the circular magnetic ring in the third coil 31. It should be understood that the axis of the first coil 21 and the axis of the fourth coil 32 can also be arranged parallel to each other.
[0037] It is understandable that the different axial directions of the second coil 22 and the third coil 31 can reduce the overlap between the magnetic field lines generated by the second coil 22 and the magnetic field lines generated by the third coil 31. Similarly, the different axial directions of the first coil 21 and the fourth coil 32 can reduce the overlap between the magnetic field lines generated by the first coil 21 and the magnetic field lines generated by the fourth coil 32. This can further reduce crosstalk between signal channels by reducing magnetic field interference between the second coil 22 and the third coil 31, as well as between the first coil 21 and the fourth coil 32.
[0038] In one embodiment of this implementation, the first coil 21 and the second coil 22 are arranged along a second direction 52 perpendicular to the first direction 51, and the third coil 31 and the fourth coil 32 are arranged along the second direction 52. The third direction 53 is defined as a direction perpendicular to the first direction 51 and the second direction 52. On a plane perpendicular to the third direction 53, the orthographic projections of the first coil 21 and the third coil 31 are adjacent in the first direction 51, the orthographic projections of the second coil 22 and the fourth coil 32 are adjacent in the first direction 51, and the axis of the first coil 21 is perpendicular to the axis of the third coil 31, and the axes of the second coil 22 and the fourth coil 32 are perpendicular.
[0039] Specifically, in combination Figure 2 and Figure 4 The plane perpendicular to the third direction 53 is the second projection plane 55. On the second projection plane 55, the orthographic projections of the second coil 22 and the fourth coil 32 are arranged alternately along the first direction 51. The axis of the first coil 21 is parallel to the second direction 52. The axes of the second coil 22 and the third coil 31 are parallel to the third direction 53. The axis of the fourth coil 32 is parallel to the first direction 51. It is understandable that setting the axis of the first coil 21 perpendicular to the axis of the third coil 31 can reduce the overlap of the magnetic field lines generated by the first coil 21 and the magnetic field lines generated by the second coil 22, thereby reducing the interference between the first coil 21 and the third coil 31. Similarly, setting the axis of the second coil 22 perpendicular to the axis of the fourth coil 32 can reduce the overlap of the magnetic field lines generated by the second coil 22 and the magnetic field lines generated by the fourth coil 32, thereby reducing the interference between the second coil 22 and the fourth coil 32. Therefore, this arrangement can reduce crosstalk between different signal channels.
[0040] In one embodiment of this implementation, the number of first coil modules 20 and second coil modules 30 is the same and there are multiple of each. The multiple first coil modules 20 and the multiple second coil modules 30 are arranged alternately along a first direction 51. On a plane perpendicular to the first direction 51, the orthographic projections of the multiple first coil modules 20 at least partially overlap, and the orthographic projections of the multiple second coil modules 30 at least partially overlap.
[0041] Specifically, in combination Figure 2 and Figure 4The housing 10 is provided with two first chambers 121 and two second chambers 132, which are arranged alternately along the first direction 51. Two first coil modules 20 are respectively disposed on the first mounting surfaces in the two first chambers 121, and two second coil modules 30 are respectively disposed on the second mounting surfaces in the two second chambers 132. The two first mounting surfaces are in the same plane, the two second mounting surfaces are in the same plane, and both the first mounting surfaces and the second mounting surfaces are parallel to the first direction 51.
[0042] It is understandable that each first coil module 20 corresponds to a different signal channel, and each second coil module 30 corresponds to a different signal channel. By setting multiple first coil modules 20 and multiple second coil modules 30, the network transformer can convert more signal channels. The plane perpendicular to the first direction 51 is the first projection plane 54. By arranging multiple first coil modules 20 and multiple second coil modules 30 alternately, the orthographic projections of adjacent first coil modules 20 and second coil modules 30 on the first projection plane 54 do not overlap. The magnetic fields generated by the first coil module 20 and the second coil module 30 superimpose and reduce each other in the adjacent parts, thereby reducing crosstalk between different signal channels.
[0043] In one embodiment of this implementation, the housing 10 includes an upper cover 11, an intermediate shell 12, and a bottom shell 13. A first chamber 121 is formed in the intermediate shell 12, and a second chamber 132 is formed in the bottom shell 13. The upper cover 11 closes the first chamber 121 and the second chamber 132. Specifically, in conjunction with... Figures 1 to 2 The first chamber 121 and the second chamber 132 are independent of each other and have upward openings. The top cover 11 covers the openings of the first chamber 121 and the second chamber 132 and closes them. It is understood that, on the one hand, the bottom shell 13, the middle shell 12, and the top cover 11 work together to separate the first chamber 121 and the second chamber 132, which helps to further reduce interference between the first coil module 20 and the second coil module 30; on the other hand, the middle shell 12 and the first coil module 20 form a first module, the bottom shell 13 and the second coil module 30 form a second module, and the top cover 11 simultaneously encapsulates both the first and second modules, thereby facilitating the assembly between the first coil module 20 and the second coil module 30 and improving assembly efficiency.
[0044] In one embodiment of this implementation, a metal layer (not shown in the figure) is provided on the inner side of the upper cover 11. Specifically, the upper cover 11 is made of plastic, and an electroplated layer is laid on the inner side of the upper cover 11. It can be understood that the metal layer can shield external magnetic fields, thereby reducing the interference of external magnetic fields on the first coil group 21 and the second coil group 22, and further enhancing the anti-interference performance of the network transformer.
[0045] In one embodiment of this implementation, the bottom shell 13, the middle shell 12, and the top cover 11 are installed sequentially along a direction perpendicular to the first direction 51. Specifically, in conjunction with... Figure 1 and Figure 2 The first direction 51 is parallel to the horizontal plane, and the bottom shell 13, the middle shell 12, and the top cover 11 are connected in sequence along the vertical direction by snap-fit. With this configuration, the connection between the bottom shell 13, the middle shell 12, and the top cover 11 is simple and easy to assemble and disassemble.
[0046] In one embodiment of this implementation, the intermediate shell 12 has a mounting hole 122 located on one side of the first chamber 121 in the first direction 51. The bottom shell 13 includes a mounting portion 131, and the second chamber 132 is formed in the mounting portion 131, with the mounting portion 131 passing through the mounting hole 122. Specifically, in conjunction with... Figures 2 to 3 In other embodiments, the mounting portion 131 has a square outer contour, and the intermediate shell 12 surrounds a space whose size is adapted to the mounting portion 131 to form a square mounting hole 122 that is vertically connected. It can be understood that the cooperation between the mounting hole 122 and the mounting portion 131 facilitates the positioning and installation of the intermediate shell 12 and the bottom shell 13. At the same time, the second chamber 132 is formed on the mounting portion 131, and the mounting hole 122 surrounds the mounting portion 131, which can further reduce the interference of the second coil module 30 from the external magnetic field.
[0047] In one embodiment of this implementation, reference is made to Figures 2 to 4 The network transformer also includes a first lead group 41 and a second lead group 42. The first lead group 41 is electrically connected to the first coil module 20, and the second lead group 42 is electrically connected to the second coil module 30. The first lead group 41 and the second lead group 42 are used for wiring. Specifically, in conjunction with... Figures 2 to 4 Both the first coil module 20 and the second coil module 30 include a circular magnetic ring with a cable wound around it. A first lead group 41 is electrically connected to the cable wound on the circular magnetic ring in the first coil module 20, and a second lead group 42 is electrically connected to the cable wound on the circular magnetic ring in the second coil module 30. Understandably, directly wiring the cable wound on the circular magnetic ring is cumbersome; by providing the first lead group 41 and the second lead group 42, wiring becomes easier.
[0048] In one embodiment of this implementation, reference is made to Figures 1 to 4The bottom shell 13 has a first through hole 123, which connects to the second chamber 132. The middle shell 12 has a second through hole 133, which connects to the first chamber 121. The dimensions of the first through hole 123 and the second through hole 133 are adapted to the lead wire assembly. The first lead wire assembly 41 and the second lead wire assembly 42 are respectively passed through the first through hole 123 and the second through hole 133, and one end of the first lead wire assembly 41 and one end of the second lead wire assembly 42 are exposed on the same side of the bottom shell 13.
[0049] Specifically, in combination Figures 1 to 4 Both the first lead group 41 and the second lead group 42 include metal pins and leads. One end of the lead in the first lead group 41 is connected to the first coil module 20, and the other end is connected to the metal pin in the first lead group 41. The metal pin in the first lead group 41 passes through the first via 123. One end of the lead in the second lead group 42 is connected to the second coil module 30, and the other end is connected to the metal pin in the second lead group 42. The metal pin in the second lead group 42 passes through the second via 133. One end of the metal pin in the first lead group 41 and one end of the metal pin in the second lead group 42 are exposed on the same side of the bottom shell 13. The portion of the metal pins in the first lead group 41 and the second lead group 42 exposed on one side of the bottom shell 13 is used for wiring. It is understood that the terminals of the network transformer are all located on one side for easy wiring.
[0050] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention 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 the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.
Claims
1. A network transformer, characterized by The network transformer comprises a shell, a first cavity and a second cavity arranged along a first direction, a first coil module arranged in the first cavity, and a second coil module arranged in the second cavity, wherein the first coil module and the second coil module do not overlap in a vertical projection on a plane perpendicular to the first direction. The first coil module comprises a first coil and a second coil, and the second coil module comprises a third coil and a fourth coil, wherein an axis of the first coil is perpendicular to an axis of the fourth coil, and / or an axis of the second coil is perpendicular to an axis of the third coil. The first coil and the second coil are arranged along a second direction perpendicular to the first direction, and the third coil and the fourth coil are arranged along the second direction. A third direction is defined as a direction perpendicular to the first direction and the second direction, wherein in a plane perpendicular to the third direction, the first coil and the third coil are adjacent in the first direction in a vertical projection, the second coil and the fourth coil are adjacent in the first direction in a vertical projection, and the axis of the first coil is perpendicular to the axis of the third coil, and the axis of the second coil is perpendicular to the axis of the fourth coil.
2. The network transformer of claim 1, wherein, The first coil module and the second coil module are the same in number and are multiple, and multiple first coil modules and multiple second coil modules are arranged alternately along the first direction, wherein in a plane perpendicular to the first direction, the vertical projections of the multiple first coil modules at least partially overlap, and the vertical projections of the multiple second coil modules at least partially overlap.
3. The network transformer of claim 2, wherein, The shell comprises an upper cover, an intermediate shell, and a bottom shell, the intermediate shell is connected to the bottom shell, the first cavity is arranged on the intermediate shell, the second cavity is arranged on the bottom shell, and the upper cover seals the first cavity and the second cavity. A metal layer is arranged on the inner side of the upper cover.
4. The network transformer of claim 1, wherein, The bottom shell, the intermediate shell, and the upper cover are sequentially arranged along a direction perpendicular to the first direction.
5. The network transformer of claim 1, wherein, The intermediate shell is provided with a mounting hole located on one side of the first cavity in the first direction, the bottom shell comprises a mounting portion, the second cavity is arranged in the mounting portion, and the mounting portion is arranged in the mounting hole.
6. The network transformer of claim 5, wherein, The network transformer further comprises a first lead group and a second lead group, the first lead group is electrically connected to the first coil module, the second lead group is electrically connected to the second coil module, and the first lead group and the second lead group are used for wiring.
7. The network transformer of claim 5, wherein, The bottom shell is provided with a first via hole, the first via hole is connected to the second cavity, the intermediate shell is provided with a second via hole, the second via hole is connected to the first cavity, the first via hole and the second via hole are adapted to the size of the lead group, the first lead group and the second lead group are arranged in the first via hole and the second via hole respectively, and one end of the first lead group and one end of the second lead group are exposed on the same side of the bottom shell.
8. The network transformer of claim 7, wherein, 9. The network transformer of claim 5, wherein, 10. The network transformer of claim 9, wherein,