Connector, magnetic substrate, and electronic device

Abstract

The present invention discloses a connector, a magnetic substrate and an electronic device. The connector includes: a conductive pin, one end of which is connected to a transfer board and the other end is used for connecting to an external circuit; a transfer board for electrically connecting the conductive pin and the magnetic substrate; the magnetic substrate includes a substrate, a magnetic core and a magnetic ring around a coil; at least two adjacent sides of the substrate are provided with connection terminals, one end of which is connected to the magnetic ring around the coil and the other end is connected to the transfer board, so that the circuit design on the transfer board is simple, reducing the interference between traces and improving the overall electrical performance of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated circuits, and particularly to a connector, a magnetic substrate, and an electronic device. Background Art

[0002] With the development of network technology, communication networks are more and more widely applied. Due to the decreasing size of communication devices and the limited internal space of the devices, RJ45 connectors with built-in transformers are increasingly widely used.

[0003] For an RJ45 connector, the input and output wires of a modular transformer are directly soldered to a PCB adapter board, and are electrically connected to the pins of the RJ45 connector through the PCB adapter board, so as to realize the electrical connection between the RJ45 connector with a transformer and the corresponding holes on an external circuit motherboard. The pins of existing modular transformers are arranged on two opposite sides, and all the copper wires after winding the internal magnetic core are wound around the corresponding metal pins and led out. When actually soldering the pins of the transformer to the PCB adapter board, it is necessary to redefine the positions of the pins and then connect them to the pins. Therefore, the design method of arranging the pins of the modular transformer on two opposite sides instead forms redundant traces, causing overcrowding of the space on the PCB adapter board and interference between the traces. Summary of the Invention

[0004] The main technical problem to be solved by the present invention is to provide a connector, a magnetic substrate, and an electronic device, so that the circuit design on the adapter board is simple, the interference between traces is reduced, and the overall electrical performance of the device is improved.

[0005] To solve the above technical problem, one technical solution adopted by the present invention is:

[0006] Provide a connector, including:

[0007] A conductive pin, one end of which is connected to the adapter board, and the other end is used for connecting to an external circuit;

[0008] An adapter board, which is used for electrically connecting the conductive pin and the magnetic substrate;

[0009] The magnetic substrate includes a substrate, a magnetic core, and a magnetic core winding coil;

[0010] At least two adjacent sides of the substrate are provided with connection terminals, one end of which is connected to the magnetic core winding coil, and the other end is connected to the adapter board.

[0011] To solve the above technical problem, another technical solution adopted by the present invention is:

[0012] Provide a magnetic substrate, including:

[0013] A substrate, a magnetic core, and a magnetic core winding coil;

[0014] The substrate has connection terminals on at least two adjacent sides, one end of which is connected to the magnetic winding coil and the other end is connected to the adapter board of the connector.

[0015] To solve the above technical problems, another technical solution adopted by the present invention is:

[0016] Provide an electronic device, and the electronic device includes the above connector.

[0017] The beneficial effects of the present invention are as follows: Different from the prior art, the connector of the present invention includes: a conductive pin, one end of which is connected to the adapter board and the other end is used to connect to an external circuit; an adapter board for electrically connecting the conductive pin and the magnetic substrate; the magnetic substrate includes a substrate, a magnetic core and a magnetic winding coil; the substrate has connection terminals on at least two adjacent sides, one end of which is connected to the magnetic winding coil and the other end is connected to the adapter board. The connection terminals on at least two adjacent sides of the substrate enable the magnetic substrate to draw wires for connection nearby when electrically connected to the adapter board, making the circuit design on the adapter board simple and reducing interference between the traces, so as to improve the overall electrical performance of the device. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the first embodiment of the connector of the present invention;

[0019] Figure 2 is a disassembled structural diagram of the first embodiment of the connector of the present invention;

[0020] Figure 3 is a block structural diagram of the magnetic substrate of the present invention;

[0021] Figure 4 is a structural diagram of the magnetic substrate of the present invention;

[0022] Figure 5 is a cross-sectional structural diagram of the magnetic substrate of the present invention;

[0023] Figure 6 is a connection structural diagram of the magnetic substrate and the adapter board of the present invention;

[0024] Figure 7 is a structural diagram of the middle insulating layer of the magnetic substrate of the present invention;

[0025] Figure 8 is a structural diagram of the third embodiment of the magnetic substrate of the present invention;

[0026] Figure 9 is a structural diagram of the electronic device of the present invention. Detailed Embodiments

[0027] The present invention will be described in detail below with reference to the drawings and embodiments.

[0028] Please refer to Figure 1 , which is a schematic structural diagram of the connector of the present invention. The connector 100 includes:

[0029] The conductive pin 10, one end is connected to the adapter board 20, and the other end is used to connect to an external circuit;

[0030] The adapter board 20 is used for electrically connecting the conductive pin 10 and the magnetic substrate 30.

[0031] Please refer to Figure 2 , which is a schematic exploded view of the connector of the present invention. Combining Figure 3 , the magnetic substrate 30 includes a substrate 31, a magnetic core 32 and a magnetic ring around coil 33;

[0032] The substrate 31 is provided with connection terminals 34 on at least two adjacent sides, one end is connected to the magnetic ring around coil 33, and the other end is connected to the adapter board 20.

[0033] The connector 100 further includes: a plurality of conductive connectors 110 and a housing 120. One end of each conductive connector 110 is fixed and electrically connected to the adapter board 20 through the housing 120. The conductive pin 10 is inserted into the adapter board 20 through the housing 120, and the other end is connected to an external circuit. The magnetic substrate 30 is accommodated in the space formed by the housing 120 and the adapter board 20.

[0034] Among them, the connector 100 further includes other structures that are the same as those in the prior art, which will not be elaborated here.

[0035] Please continue to refer to Figure 2 , the adapter board 20 is provided with a first conductive hole 21 and a second conductive hole 22. One end of the conductive pin 10 is inserted and fixed in the first conductive hole 21 and is electrically connected to the first conductive hole 21. One end of the conductive connector 110 is inserted and fixed in the second conductive hole 22 and is electrically connected to the second conductive hole 22.

[0036] The connection terminals 34 are provided on two adjacent sides of the substrate 31, or on any three sides of the substrate 31, or on all four sides of the substrate 31.

[0037] In this embodiment, the connection terminals 34 are provided on all four sides of the substrate 31.

[0038] In this embodiment, the adapter board 20 further includes a third pad and / or a conductive hole 23. The connection terminal 34 is a pad and / or a conductive hole, and is welded and electrically connected to the third pad and / or the conductive hole 23 on the adapter board 20.

[0039] In this embodiment, the connection terminal 34 is a pad. The third pad and / or the conductive hole 23 on the adapter board 20 includes a pad and / or a conductive hole A that is directly and correspondingly connected to the first conductive hole 21 where one end of the conductive pin 10 is located, and a pad and / or a conductive hole B that is directly and correspondingly connected to the second conductive hole 22 where one end of the conductive joint 110 is located. The connection terminal 34 is electrically connected to the corresponding third pad and / or conductive hole 23 that transmits the same signal through a wire, so as to re-define the connection terminal 34 on the magnetic substrate 30. The magnetic substrate 30 is fixed on the adapter board 20 by means of pad soldering, and then the magnetic substrate 30 is electrically connected to an external circuit through the other ends of the conductive pin 10 and the conductive connector 110.

[0040] Among them, the magnetic substrate 30 is a network transformer, and the connector 100 is an RJ45 connector.

[0041] In this embodiment, by soldering the transformer to the adapter board 20, the position of the connection terminal 34 is re-defined and electrically connected to one end of the conductive pin 10 and the conductive connector 110. The transformer is electrically connected to the external circuit motherboard through the other ends of the conductive pin 10 and the conductive connector 110. The four sides of the substrate 31 of the transformer are provided with connection terminals 34 to re-define the position of the connection terminal 34 on the adapter board 20, minimize the trace length on the adapter board 20 as much as possible, avoid crowded trace design, reduce the mutual interference between traces, and thus improve the overall electrical performance of the connector 100.

[0042] As Figure 4 shown, in another embodiment of the present invention, in combination with Figure 5 , Figure 5 is a schematic cross-sectional structure diagram of the magnetic substrate 30 longitudinally cut along the dashed line a in Figure 4 . Different from the magnetic substrate 30 in the first embodiment, in this embodiment, the substrate 31 of the magnetic substrate 30 includes a first conductive layer 311, an intermediate insulating layer 312, and a second conductive layer 313 that are sequentially stacked. The first conductive layer 311 and the second conductive layer 313 include a plurality of conductive wires / sheets, and a conductive member 3121 is provided in the intermediate insulating layer 312.

[0043] The magnetic core 32 of the magnetic substrate 30 is buried in the intermediate insulating layer 312. The plurality of conductive wires / sheets on the first conductive layer 311 and the second conductive layer 313 are electrically connected through the conductive member 3121 in the intermediate insulating layer 312 to form the above-mentioned magnetic core winding coil 33.

[0044] Among them, the magnetic core 32 is an annular magnetic core. The annular magnetic core 32 includes an inner diameter r and an outer diameter R. The conductive member 3121 includes a first conductive member P1 disposed inside the inner diameter r of the annular magnetic core 32, and a second conductive member P2 disposed outside the outer diameter R of the annular magnetic core 32.

[0045] In this embodiment, the connection terminal 34 is a conductive hole or a metal half-hole. As Figure 6 shown, the connection terminal 34 is a metal half-hole. One end of the first conductive pin 35 is inserted and fixed inside the metal half-hole. A fourth conductive hole 24 with a corresponding position is provided on the adapter board 20. The other end of the first conductive pin 35 is inserted and fixed inside the fourth conductive hole 24 provided on the adapter board 20. The magnetic substrate 30 is fixed to the adapter board 20 by means of plugging and soldering. Then, the fourth conductive hole 24 on the adapter board 20 is electrically connected to the first conductive hole 21 where the corresponding conductive pin 10 is located and the second conductive hole 22 where the corresponding conductive connector 110 is located, so as to realize the electrical connection between the magnetic substrate 30 and the external circuit.

[0046] In this embodiment, the magnetic substrate 30 is a transformer with the above-mentioned buried magnetic structure. The transformer is plugged onto the adapter board 20. The positions of the connection terminal 34 and the fourth conductive hole 24 correspond to each other, that is, the fourth conductive holes 24 are arranged around. The fourth conductive holes 24 are electrically connected to the corresponding first conductive holes 21 or the second conductive holes 22 that transmit the same signal through wires. Compared with the form of symmetrically arranging conductive holes on both sides, the wiring length can be effectively reduced, avoiding crowded wiring design on the adapter board 20, reducing the mutual interference between wirings, and thus improving the overall electrical performance of the connector 100.

[0047] Combined with Figure 7 , the magnetic core 32 is correspondingly accommodated in an annular accommodation groove on the intermediate insulating layer 312. The cross-sectional shape of the magnetic core 32 is substantially the same as the cross-sectional shape of the annular accommodation groove, so that the magnetic core 32 can be accommodated in the annular accommodation groove. Among them, the cross-sectional shape of the magnetic core 32 can be an annular shape, a square annular shape, an elliptical shape, etc. Correspondingly, the shape of the annular accommodation groove can be an annular shape, a square annular shape, an elliptical shape, etc. In this embodiment, the magnetic core 32 is an annular shape.

[0048] In this embodiment, the annular magnetic core 32 can be formed by sequentially stacking a plurality of annular thin sheets, or can be formed by winding a narrow and long metal material, or can also be formed by sintering a plurality of metal mixtures. There are various ways to form the annular magnetic core 32, which can be flexibly selected according to different materials, and this application does not make any limitations.

[0049] The magnetic core 32 can be an iron core or composed of various magnetic metal oxides, such as manganese-zinc ferrite and nickel-zinc ferrite. Among them, manganese-zinc ferrite has the characteristics of high magnetic permeability, high magnetic flux density and low loss, and nickel-zinc ferrite has characteristics such as extremely high impedance rate and low magnetic permeability. In this embodiment, the magnetic core 32 is made of manganese-zinc ferrite as the raw material and sintered at high temperature.

[0050] Please refer to Figure 5 and Figure 7 , wherein, the conductive member 3121 can be a metal column or a conductive metal layer. A first through hole A1 is provided on the inner side of the inner diameter r of the annular magnetic core 32 in the intermediate insulating layer 312, and a second through hole A2 is provided on the outer side of the outer diameter R of the annular magnetic core 32 in the intermediate insulating layer 312. The first conductive member P1 is disposed in the first through hole A1, and the second conductive member P2 is disposed in the second through hole A2.

[0051] When the first conductive member P1 and the second conductive member P2 are metal columns respectively disposed in the first through hole A1 and the second through hole A2, the diameter of the metal column is less than or equal to the diameter of the first through hole A1 or the second through hole A2 where it is located. When the first conductive member P1 and the second conductive member P2 are conductive metal layers, the conductive metal layer can be formed on the inner walls of the first through hole A1 and the second through hole A2 by means such as electroplating and coating. The materials for forming the conductive member 3521 can include, but are not limited to, copper, aluminum, iron, nickel, gold, silver, platinum group, chromium, magnesium, tungsten, molybdenum, lead, tin, indium, zinc or their alloys, etc.

[0052] Please refer to Figure 8 , which is a schematic structural diagram of the third embodiment of the connector of the present invention. The difference from the second embodiment is that the magnetic substrate 30 can be directly disposed based on the adapter plate 20. That is, the adapter plate 20 directly serves as the substrate 31 of the magnetic substrate 30. The specific structure is the same as Figures 4 - 5 shown. The adapter plate 20 includes a first conductive layer 311, an intermediate insulating layer 312, and a second conductive layer 313 that are sequentially stacked. The first conductive layer 311 and the second conductive layer 313 include a plurality of conductive wires / sheets, and a conductive member 3121 is provided in the intermediate insulating layer 312.

[0053] The magnetic core 32 of the magnetic substrate 30 is buried in the intermediate insulating layer 312, and a plurality of conductive wires / sheets on the first conductive layer 311 and the second conductive layer 313 are electrically connected through the conductive member 3121 in the intermediate insulating layer 312 to form the magnetic ring coil 33.

[0054] In this embodiment, the magnetic core 32 is an annular magnetic core. The annular magnetic core 32 includes an inner diameter r and an outer diameter R. The conductive member 3121 includes a first conductive member P1 disposed inside the inner diameter r of the annular magnetic core 32 and a second conductive member P2 disposed outside the outer diameter R of the annular magnetic core 32. The conductive member 3121 is a conductive through-hole, which electrically connects the conductive through-hole to the first conductive hole 21 where the conductive pin 10 is located and the second conductive hole 22 where the conductive connector 110 is located, so as to realize the electrical connection between the magnetic substrate 30 and the external circuit.

[0055] In this embodiment, further based on the adapter board 20, the magnetic substrate 30 is arranged. The magnetic substrate 30 is a transformer, and is directly electrically connected to the first conductive hole 21 where the conductive pin 10 is located and the second conductive hole 22 where the conductive connector 110 is located through the conductive through-holes arranged around the magnetic core 32, while simplifying the circuit design on the adapter board 20 in the connector 100 and further reducing the overall volume of the connector 100.

[0056] Please refer to Figure 9 , which is a schematic structural diagram of the electronic device of the present invention. The electronic device 200 includes the above-mentioned connector 100.

[0057] In the present invention, connection terminals are arranged on the four sides of the substrate of the transformer, and the connection terminals are electrically connected to the adapter board in the connector, so as to fix the transformer on the connector, forming a connector with a transformer. Connection terminals are arranged on the four sides of the substrate of the transformer to minimize the trace length as much as possible when redefining the connection terminals on the adapter board, avoid overcrowding of the trace design on the adapter board, reduce the mutual interference between the traces, and thus improve the overall electrical performance of the connector.

[0058] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A connector, characterized in that, include: A conductive pin, one end of which is connected to the adapter board, and the other end is used to connect to an external circuit; A conductive connector, one end of which is connected to the adapter board, and the other end of which is connected to an external circuit; An adapter plate, used for electrically connecting the conductive pin, the conductive connector and the magnetic substrate (30), supporting and connecting various components of the connector; wherein the adapter plate is provided with a first conductive hole and a second conductive hole, one end of the conductive pin is inserted and fixed in the first conductive hole, and is electrically connected to the first conductive hole, and one end of the conductive connector is inserted and fixed in the second conductive hole, and is electrically connected to the second conductive hole; and the adapter plate also includes a third conductive hole, the third conductive hole includes a conductive hole directly connected to the first conductive hole where one end of the conductive pin is located, and a conductive hole directly connected to the second conductive hole where one end of the conductive connector is located; The magnetic substrate (30) comprises a substrate (31), a magnetic core and a magnetic surrounding coil; The substrate (31) is provided with connection terminals on at least two adjacent sides, one end of which is connected to the magnetic encircling coil, and the other end of which is electrically connected to the corresponding third conductive hole for transmitting the same signal through a wire, and then the magnetic substrate (30) is electrically connected to an external circuit through the conductive needle and the other end of the conductive connector.

2. The connector according to claim 1, wherein, The connecting terminals are provided on two adjacent sides of the substrate (31), or any three sides of the substrate (31) are provided with the connecting terminals, or four sides of the substrate (31) are provided with the connecting terminals.

3. The connector according to claim 1, characterized in that, The connection terminal is a soldering pad and / or a conductive hole, and is electrically connected to the conductive hole on the adapter board by welding.

4. The connector according to claim 1, characterized in that, The substrate (31) comprises a first conductive layer, an intermediate insulating layer and a second conductive layer which are stacked in sequence, the first conductive layer and the second conductive layer comprising a plurality of conductive wires / sheets, and a conductive element is provided in the intermediate insulating layer; The magnetic core of the magnetic substrate (30) is buried in the middle insulating layer, and a plurality of conductive wires / sheets on the first conductive layer and the second conductive layer are electrically connected via conductive elements in the middle insulating layer to form the magnetic encircling coil.

5. The connector according to claim 4, characterized in that, The magnetic core is an annular magnetic core including an inner diameter and an outer diameter. The conductive member includes a first conductive member arranged inside the inner diameter of the annular magnetic core and a second conductive member arranged outside the outer diameter of the annular magnetic core.

6. A magnetic substrate (30), comprising: A substrate (31), a magnetic core and a magnetic surrounding coil; The substrate (31) is provided with connection terminals at least on two adjacent sides, one end of which is connected to the magnetic encircling coil and the other end of which is connected to the adapter plate of the connector; Among them, the adapter board is used for electrically connecting the conductive pins, the conductive connectors and the magnetic substrate (30); wherein, the adapter board is provided with a first conductive hole and a second conductive hole, one end of the conductive pin is inserted and fixed in the first conductive hole and electrically connected to the first conductive hole, one end of the conductive connector is inserted and fixed in the second conductive hole and electrically connected to the second conductive hole; and the adapter board further includes a third conductive hole, the third conductive hole includes a conductive hole directly corresponding to and connected to the first conductive hole where one end of the conductive pin is located, and a conductive hole directly corresponding to and connected to the second conductive hole where one end of the conductive connector is located; the connection terminal is electrically connected to the third conductive hole on the adapter board that transmits the same signal correspondingly.

7. The magnetic substrate (30) according to claim 6, wherein, The substrate (31) includes a first conductive layer, an intermediate insulating layer and a second conductive layer which are sequentially stacked, the first conductive layer and the second conductive layer include a plurality of conductive wires / sheets, and conductive members are arranged in the intermediate insulating layer; The magnetic core of the magnetic substrate (30) is buried in the intermediate insulating layer, and a plurality of conductive wires / sheets on the first conductive layer and the second conductive layer are electrically connected through the conductive members in the intermediate insulating layer to form the magnetic ring coil.

8. The magnetic substrate (30) according to claim 7, characterized in that, The magnetic core is an annular magnetic core, the annular magnetic core includes an inner diameter and an outer diameter, the conductive member includes a first conductive member arranged on the inner side of the inner diameter of the annular magnetic core, and a second conductive member arranged on the outer side of the outer diameter of the annular magnetic core.

9. An electronic device, characterized in that, The electronic device includes the connector according to any one of claims 1-5.

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