CN117334441A - Magnetic module and electric connector with same - Google Patents

Abstract

The invention discloses a magnetic module and an electric connector with the same, wherein the electric connector comprises a magnetic module, the magnetic module comprises a magnetic core and a plurality of enameled wires wound on the magnetic core, the part of the enameled wires wound on the magnetic core is twisted together, the magnetic core comprises two parallel through holes and an intermediate wall for spacing the two through holes, the enameled wires penetrate through the two through holes and are wound on the intermediate wall to form a primary coil and a secondary coil, each enameled wire comprises a first wire end and a second wire end which extend out of the through holes, and the first wire end and the second wire end are twisted for at least 0.1mm after extending out of the through holes and are not dispersed. The magnetic module and the electric connector with the magnetic module are beneficial to effective transmission of high-frequency signals.

Description

Magnetic module and electric connector with same

[ field of technology ]

The present invention relates to a magnetic module and an electrical connector having the same, and more particularly, to a magnetic module capable of transmitting high frequency signals and an electrical connector having the same.

[ background Art ]

Please refer to chinese patent No. CN102832019a, which is published in 12/19/2012, discloses a magnetic module, the magnetic module includes a magnetic core and a plurality of enameled wires wound on the magnetic core, the enameled wires are wound on a portion of the magnetic core and are twisted together, each enameled wire includes a first wire end and a second wire end extending out of the through hole, a section of twisting is not reserved after the first wire end and the second wire end extend out of the through hole, and the first wire end and the second wire end are directly dispersed and then are twisted in combination, so that effective transmission of high-frequency signal transmission cannot be ensured.

Therefore, there is a need for an improved magnetic module to solve the above-mentioned drawbacks of the prior art.

[ invention ]

The main purpose of the invention is that: a magnetic module suitable for high frequency signal transmission and an electrical connector having the same are provided.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a magnetic module, its includes the magnetic core and twines a plurality of enameled wires on the magnetic core, the enameled wire twines in the part transposition of magnetic core together, the magnetic core includes two parallel through-holes and will two the spaced intermediate wall of through-hole, the enameled wire runs through two the through-hole twines on the intermediate wall forms primary coil and secondary coil, each enameled wire all includes to extend first end of a thread and second end of a thread of through-hole, first end of a thread and second end of a thread leave 0.1mm at least transposition after extending the through-hole and do not disperse.

In order to solve the technical problems, the invention can also adopt the following technical scheme: the utility model provides an electric connector, its includes magnetic module, magnetic module includes the magnetic core and twines a plurality of enameled wires on the magnetic core, the enameled wire twines in the part transposition of magnetic core together, the magnetic core includes two parallel through-holes and will two the spaced apart interwall of through-hole, the enameled wire runs through two the through-hole twines on the interwall forms primary coil and secondary coil, each enameled wire all includes and extends first end of a thread and the second end of a thread of through-hole, first end of a thread and second end of a thread leave 0.1mm transposition after extending the through-hole and do not disperse, so that electric connector can support 25Gbps transmission.

Compared with the prior art, the magnetic module has the advantages that: the enameled wire penetrates through the two through holes of the magnetic core and is wound on the middle wall to form a primary coil and a secondary coil, and the first wire end and the second wire end of the enameled wire are not dispersed after extending out of the through holes by at least 0.1mm, so that efficient transmission of high-frequency signals is facilitated.

[ description of the drawings ]

Fig. 1 is a schematic diagram of a magnetic module and a common mode choke connected thereto after winding according to the present invention.

Fig. 2 is a schematic circuit diagram of the magnetic module shown in fig. 1 and a common mode choke connected thereto.

FIG. 3 is a schematic diagram of the magnetic module of FIG. 1 after winding, with the ends of the magnetic module not being scattered.

Fig. 4 is a schematic grouping of ten enamel wires of the magnetic module shown in fig. 3.

Fig. 5 is a schematic view of a total stranded wire of ten enamel wires wound on a magnetic core of the magnetic module shown in fig. 5.

FIG. 6 is a schematic diagram of the magnetic module of FIG. 3 after winding.

FIG. 7 is a schematic illustration of the magnetic module of FIG. 6 with an added gold wire.

FIG. 8 is a schematic diagram of the magnetic module of FIG. 7 with the center tap formed after each set of wire positions are adjusted.

Fig. 9 is a schematic view of the second center tap of the magnetic module of fig. 8 moved to the right to facilitate the stripper and dip soldering connection together.

Fig. 10 is a perspective view of an electrical connector having the magnetic module shown in fig. 3.

[ Main reference numerals Specification ]

Fourth group of enamelled wires 34 of magnetic module 100

Secondary input 331 of core 10

Through hole 111 secondary output 341

Intermediate wall 113 second center tap 102

Primary coil 201 total strand 230

Secondary coil 301 electrical connector 600

First group of enameled wires 21 shell 601

Second group of enamelled wires 22 insulation body 602

Primary input 211 common mode choke 200

Primary output 221 common mode core 210

First center tap 101 gold wire 40

Third group of enamelled wires 33

[ detailed description ] of the invention

Referring to fig. 1 to 10, a magnetic module 100 according to the present invention is a transformer. The magnetic module 100 includes a magnetic core 10 and a plurality of enamelled wires wound around the magnetic core 10.

The magnetic core 10 includes two parallel through holes 111 and an intermediate wall 113 separating the two through holes 111, and the enamel wire is wound around the intermediate wall 113 through the two through holes to form a primary coil 201 and a secondary coil 301.

In the present invention, the total number of the enamel wires wound around the magnetic core 10 is ten, the ten enamel wires are divided into four groups, and the primary coil 201 includes the first group of enamel wires 21 and the second group of enamel wires 22. The first and second groups of enamel wires 21 and 22 form a primary input end 211 and a primary output end 221 of the primary coil 201, respectively, and a first center tap 101 is formed between the primary input end 211 and the primary output end 221. The secondary coil 301 includes a third set of enameled wires 33 and a fourth set of enameled wires 34, and the third set of enameled wires 33 and the fourth set of enameled wires 34 respectively form a secondary input end 331 and a secondary output end 341 of the secondary coil 301, and form a second center tap 102 between the secondary input end 331 and the secondary output end 341. Specifically, in the present invention, the number of the enameled wires 21 in the first set and the enameled wires 22 in the second set is four. The third set of enameled wires 33 and the fourth set of enameled wires 34 are all one, so that the primary coil 201 of the magnetic module 100 has a lower resistance, thereby meeting the characteristic of high-frequency signal transmission. The diameter sizes of the enamelled wires of the first group of enamelled wires 21, the second group of enamelled wires 22, the third group of enamelled wires 33 and the fourth group of enamelled wires 34 are the same.

In production, different colors are often used to distinguish different groups. Each of the enamelled wires has a first end and a second end extending out of the core 10. In the figure, for clarity, the first group of enamel wires 21 has gold color, N represents a first end of a gold wire, N represents a second end of a gold wire, the second group of enamel wires 22 has blue color, B represents a first end of a blue wire, B represents a second end of a blue wire, the third group of enamel wires 33 has red color, R represents a first end of a red wire, and R represents a second end of a red wire. The fourth set of enamel wires 34 is green, with G representing the first end of a green wire and G representing the second end of a green wire. The color of the enamelled wire is only for the convenience of distinction, and other colors can be used instead.

The first group of enameled wires 21, the second group of enameled wires 22, the third group of enameled wires 33 and the fourth group of enameled wires 34 are twisted together at the part of the middle wall of the magnetic core 10, and the first wire end and the second wire end of each enameled wire are exposed. Specifically, in the present invention, the first and fourth groups of enamel wires 21 and 34 are twisted together to form a first strand, the second and third groups of enamel wires 22 and 33 are twisted together to form a second strand, and then the first and second strands are twisted together to form the total strand 230. The first end of the total strand 230 extends from one of the through holes and the second end extends from the other through hole. The first thread end and the second thread end are both left with at least 0.1mm stranding after extending out of the through hole and are not dispersed. The magnetic module 100 may support transmission of 6.25Gbps signals. Specifically, in the present invention, the first and second ends of each of the enamel wire are spread out after being extended out of the through hole by 0.1-5mm of the total strands 230. The magnetic module 100 uses a magnetic core with two through holes 111, and the number of windings of the enameled wire on the magnetic core 10 is not more than 3, so that the magnetic module 100 can achieve a higher inductance value under the condition of less windings, and avoid the capacitance benefit caused by winding a plurality of windings, thereby providing high-frequency characteristics.

The first ends NNNN of the four enameled wires of the first group of enameled wires 21 are commonly used as the primary input end 211 of the primary coil 201 of the transformer, the second ends BBBB of the second group of enameled wires 22 are commonly used as the primary output end 221 of the primary coil 201 of the transformer, and the second ends NNNN of the first group of enameled wires 21 and the first ends BBBB of the second group of enameled wires 22 form the first center tap 101 together. The first end R of one enamel wire of the third set of enamel wires 33 is taken as the secondary input 331 of the secondary winding 301 of the transformer, and the second end g of the fourth set of enamel wires 34 is taken as the secondary output 341 of the secondary winding 301 of the transformer. The second ends r of the third set of enamel wires 33 and the first ends G of the fourth set of enamel wires 34 together form a second center tap 102. The tail end paint stripper and dip solder of the second center tap 102 are connected together.

As shown in fig. 10, an electrical connector 600 according to the present invention includes a housing 601, an insulating body 602 and a magnetic module 100 accommodated in the housing 601. The electrical connector 600 further includes a common mode choke 200 connected to the magnetic module 100. The common mode choke 200 includes a common mode core 210. A gold wire 40 is added, a first wire head of the gold wire 40 being denoted by N ', and a second wire head being denoted by N'. The gold wire 40 is twisted together with the third and fourth sets of enamel wires 33 and 34 and wound around the common mode core 210 to form the windings RgN 'and rGn'. The electrical connector 600 is provided with four magnetic modules to support transmission of 25Gbps signals.

In the invention, the enameled wire is wound on the intermediate wall through the two through holes of the magnetic core to form a primary coil and a secondary coil, and at least 0.1mm of stranding is not dispersed after the enameled wire extends out of the through holes so as to achieve the purpose of transmitting high-frequency signals.

The foregoing is merely one embodiment, not all or a mere embodiment, and any equivalent variations on the technical solution of the present invention by those skilled in the art through reading the specification of the present invention are covered by the claims of the present invention.

Claims (10)

1. The utility model provides a magnetic module, its includes the magnetic core and twines a plurality of enameled wires on the magnetic core, the part transposition of enameled wire winding in the magnetic core is in the same place, its characterized in that: the magnetic core comprises two parallel through holes and an intermediate wall for spacing the two through holes, the enameled wires penetrate through the two through holes and are wound on the intermediate wall to form a primary coil and a secondary coil, each enameled wire comprises a first wire end and a second wire end which extend out of the through holes, and at least 0.1mm of stranding is reserved between the first wire end and the second wire end after the first wire end extends out of the through holes.

2. The magnetic module of claim 1, wherein: the primary coil comprises a first group of enameled wires and a second group of enameled wires, the secondary coil comprises a third group of enameled wires and a fourth group of enameled wires, the first group of enameled wires and the second group of enameled wires are four enameled wires, the third group of enameled wires and the fourth group of enameled wires are one enameled wire, and the magnetic module can support transmission at the speed of 6.25 Gbps.

3. The magnetic module of claim 2, wherein: the first group of enameled wires and the second group of enameled wires form a first center tap, and the third group of enameled wires and the fourth group of enameled wires form a second center tap.

4. The magnetic module of claim 2, wherein: the diameter sizes of the enamelled wires of the first group of enamelled wires, the second group of enamelled wires, the third group of enamelled wires and the fourth group of enamelled wires are the same.

5. The magnetic module of claim 1, wherein: a first end of each of the enamel wires extends from one of the through holes, and a second end of each of the enamel wires extends from the other through hole.

6. The magnetic module of claim 1, wherein: the first wire end and the second wire end of each enameled wire are extended out of the through hole, and then stranding of 0.1-5mm is reserved for re-spreading.

7. The magnetic module of claim 1, wherein: the number of turns of the enameled wire wound on the magnetic core is not more than 3.

8. The utility model provides an electric connector, its includes the magnetic module, the magnetic module includes the magnetic core and twines a plurality of enameled wires on the magnetic core, the part transposition of enameled wire winding in the magnetic core is in the same place, its characterized in that: the magnetic core comprises two parallel through holes and an intermediate wall for spacing the two through holes, the enameled wires penetrate through the two through holes and are wound on the intermediate wall to form a primary coil and a secondary coil, each enameled wire comprises a first wire end and a second wire end which extend out of the through holes, and the first wire end and the second wire end are left to be at least 0.1mm stranded and not dispersed after extending out of the through holes, so that the electric connector can support transmission at a speed of 25 Gbps.

9. The electrical connector of claim 8, wherein: the primary coil comprises a first group of enameled wires and a second group of enameled wires, the secondary coil comprises a third group of enameled wires and a fourth group of enameled wires, the first group of enameled wires and the second group of enameled wires are four enameled wires, and the third group of enameled wires and the fourth group of enameled wires are one enameled wire.

10. The electrical connector of claim 9, wherein: the first wire end and the second wire end of each enameled wire are twisted and dispersed by 0.1-5mm after extending out of the through hole.