CN201302912Y - Electric connector system - Google Patents

Abstract

An electrical connector system for forming a network path, which includes an external circuit board, an electrical connector mounted on the external circuit board, and a common mode suppression module and a transformer installed on the external circuit board and the electrical connector, the transformer It is set as a multilayer transformer, and the surface of the transformer is provided with a plurality of guide pieces, and the common mode suppression module includes a housing provided with a number of guide pins, and the transformer and the common mode suppression module pass through the guide pieces and the guide pins. It can be conveniently installed on an electrical connector or an external circuit board, and forms an electrical connection between the transformer and the common mode suppression module. Such a structure can facilitate the automatic production of the transformer and the common-mode suppression module, thereby improving efficiency and reducing cost.

Description

Electrical Connector System

【Technical field】

The utility model relates to an electrical connector system provided with a transformer and a common-mode suppression module, in particular to the connection structure of the transformer and the common-mode suppression module.

【Background technique】

In traditional electrical connector products with transformers and common mode suppression modules, the usual practice is to connect the transformer and common mode suppression coils together, then install them on the built-in circuit board of the electrical connector, and finally transfer them to the external circuit board . In the above-mentioned traditional design, the coils of the transformer and the common mode suppression coil form a module need to be wound manually, and the manual winding method is inefficient, the quality of the coil is poor, and it is not conducive to the automation of the production process, which leads to connectors The cost is higher.

Therefore, it is necessary to improve the existing technology to overcome the above-mentioned defects.

【Content of utility model】

The technical problem to be solved by the utility model is to provide an electrical connector system with a transformer and a common-mode suppression module, the connection of the transformer and the common-mode suppression module is convenient for automatic production, which improves efficiency and reduces costs.

In order to solve the above-mentioned technical problems, the utility model provides an electrical connector system for forming a network path, which includes an external circuit board, an electrical connector installed on the external circuit board, and an electrical connector installed on the external circuit board and the electrical connector. A common mode suppression module and a transformer, the network path has a first side and a second side which are input and output ends of each other, the transformer includes a first coil and a second coil, and the common mode suppression module includes a third coil and a fourth coil , the two ends of the first coil are connected to the above-mentioned first side, the two ends of the second coil are respectively electrically connected to one end of the third and fourth coils, and the other ends of the third and fourth coils are connected to the first side of the network path On the two sides, the transformer is set as a laminated transformer, the surface of the transformer is provided with a number of conductive sheets, the first and second coils are formed by printed conductive layers, and the two ends of the first and second coils are electrically connected to the The common mode suppression module includes a shell provided with several lead pins, the third and fourth coils are packed into the shell and welded to the lead plates, and the third and fourth The corresponding conductive pins at one end of the coil are respectively electrically connected with the corresponding conductive pieces at both ends of the second coil.

Compared with the prior art, the electrical connector system of the utility model separates the transformer and the common mode suppression coil into an independent module structure, which is convenient for the automatic production of the transformer and the common mode suppression module, and the transformers are all laminated designs, This structure can greatly reduce the volume of the transformer, improve its electrical performance, and facilitate installation; the coil of the common mode suppression module is placed in an insulating housing to form a module with a stable structure, which is also convenient for automatic installation.

【Description of drawings】

FIG. 1 is an assembled perspective view of the first electrical connector system previously designed by the applicant.

FIG. 2 is a partially exploded view of the electrical connector system shown in FIG. 1 .

FIG. 3 is a schematic diagram of cooperation of the built-in circuit board shown in FIG. 2 with the transformer module and the common mode suppression module.

FIG. 4 is an assembled perspective view of a second electrical connector system previously designed by the applicant.

FIG. 5 is a partially exploded view of the electrical connector system shown in FIG. 4 .

FIG. 6 is a schematic diagram of cooperation of the external circuit board shown in FIG. 5 with the transformer and the common-mode suppression module.

FIG. 7 is an assembled perspective view of a third electrical connector system previously designed by the applicant.

FIG. 8 is a partially exploded view of the electrical connector system shown in FIG. 7 .

Fig. 9 is a schematic diagram of cooperation between the built-in circuit board and the transformer shown in Fig. 8 .

Fig. 10 is an assembled perspective view of the fourth electrical connector system previously designed by our company.

FIG. 11 is a partially exploded view of the electrical connector system shown in FIG. 10 .

Fig. 12a is a circuit diagram of a 10/100 network electrical connector system conforming to the applicant's previous design and the utility model

Fig. 12b is a schematic circuit diagram of a network path in Fig. 12a.

12c is a schematic circuit diagram of the common mode suppression module in FIG. 12a omitting the fifth coil for grounding.

Fig. 12d is a schematic circuit diagram of a 10/1000 network electrical connector system according to the applicant's previous design and the present invention.

Fig. 13 is a partially exploded view of the first embodiment according to the present invention.

Figure 14 is a partially exploded view of a second embodiment consistent with the present invention.

Fig. 15 is a partially exploded view of a third embodiment according to the present invention.

Fig. 16 is a partially exploded view of a fourth embodiment according to the present invention.

【Detailed ways】

Figures 1 to 3 and Figures 12a to 12c show the applicant's first prior design, which discloses an electrical connector system 100 comprising an external circuit board 1, The electrical connector 3 , the transformer 5 and the common mode suppression module 7 installed in the electrical connector 3 . The electrical connector system 100 is formed with two network paths for transmitting differential signals, and each network path has a first side P and a second side O which are input ends and output ends of each other.

The electrical connector 3 includes an insulating body 31 provided with a docking space (not numbered), a built-in circuit board 33 mounted on the insulating body 31, a circuit board 33 arranged on one side of the built-in circuit board 33 and extending into the above-mentioned docking space (not numbered). A number of docking terminals 35, a number of transfer terminals 37 arranged on the other side of the built-in circuit board 33 and connecting the built-in circuit board 33 to the external circuit board 1, the docking terminals 35 are used as the second side O of the network path, and the transfer terminals 37 as the first side P of the network access. The built-in circuit board 33 is provided with a plurality of conductive paths 331 and a plurality of conductive sheets 333 connected to the conductive paths 331 .

The transformer 5 includes a toroidal magnetic core (unlabeled) and a first coil 51 and a second coil 53 wound around the magnetic core (as shown in FIG. The center taps 55 , 57 , both ends of the first and second coils 51 , 53 of the transformer 5 and the center taps 55 , 57 are welded to a part of the conductive sheet 333 on the built-in circuit board 33 . The common mode suppression module 7 includes an insulating main body 71, third, fourth, and fifth coils 73, 75, and 79 housed in the main body 71 and wound on the same magnetic core (not shown) (referring to FIG. shown) and a number of lead pins 77 arranged on the main body 71, the two ends of the third, fourth, and fifth coils 73, 75, and 79 are respectively connected to the lead pins 77, and the surface of each lead pin 77 Weld it to the rest of the conductive sheet 333. Both ends of the first coil 51 are electrically connected to the transfer terminal 37 through a portion of the conductive path 331 of the built-in circuit board 33 , and the center tap 55 of the first coil 51 is connected to a ground circuit (not shown) of the built-in circuit board 33 . Both ends of the second coil 53 of the transformer 5 and the center tap 57 are electrically connected to the third, fourth and fifth coils 73, 75, 75, 79 at one end. The other ends of the third and fourth coils 73 and 75 are electrically connected to the above-mentioned docking terminal 35 through the conductive pin 77 and part of the conductive circuit 331 of the built-in circuit board 33, and the other end of the fifth coil 79 is connected to the built-in circuit board 33. ground line (not shown).

In this previous design, the positions of the transformer 5 and the common-mode suppression module 7 can be interchanged, that is, the first coil 51 of the transformer 5 is connected to the butt terminal 35 through the conductive path 331 of the built-in circuit board 33, so that the common-mode suppression The aforementioned other ends of the third and fourth coils 73 and 75 of the module 7 are connected to the transfer terminal 37 through a part of the conductive path 331 of the built-in circuit board 33 . This makes the docking terminal 35 the first side P of the network path, and the transfer terminal 37 the second side O of the network path.

Figures 4 to 6 and Figures 12a to 12c show a second prior design of the applicant, which discloses an electrical connector system 100 comprising an external circuit board 1' mounted on the external circuit board 1' The electrical connector 3' on the external circuit board 1', the transformer 5' and the common mode suppression module 7', the electrical connector system 100 forms two network paths for transmitting differential signals, and each network The via has a first side P' and a second side O' that are input and output to each other.

The electrical connector 3' includes an insulating body 31' provided with a docking space (not numbered), a built-in circuit board 33' mounted on the insulating body 31', disposed on one side of the built-in circuit board 33' and extending into the above-mentioned docking space (unlabeled) a number of docking terminals 35', arranged on the other side of the built-in circuit board 33' and connecting the built-in circuit board 33' to a number of transfer terminals 37' of the external circuit board 1', the docking terminals 35' serve as The second side O' of the network path. The built-in circuit board 33' is provided with several conductive paths 331'. The external circuit board 1' is provided with a plurality of conductive paths 11' and conductive sheets 13' connected to the conductive paths 11'.

The transformer 5' includes a first coil 51' and a second coil 53' (shown in conjunction with FIG. Both ends of the first and second coils 51', 53' of the transformer 5' and the center taps 55', 57' are soldered to a part of the conductive sheet 13' on the external circuit board 1'. The common mode suppression module 7' includes an insulating main body 71', third, fourth, and fifth coils 73', 75', and 79' housed in the main body 71' and wound on the same magnetic core (not shown). (As shown in Figure 12b) and a number of lead pins 77' provided on the main body 71', the two ends of the third, fourth and fifth coils 73', 75', 79' are respectively connected to the respective Lead pins 77', each lead pin 77' is surface-welded to the rest of the conductive sheet 13'. One end of the third and fourth coils 73', 75' passes through the conductive pin 77', part of the conductive path 11' of the external circuit board 1', the transfer terminal 37' and the conductive path 331' of the internal circuit board 33'. The other end is electrically connected to the two ends of the second coil 53' and one end of the fifth coil 79' through the conductive pin 77' and the part of the conductive path 11' of the external circuit board 1' respectively. It is connected to the ground line of the external circuit board 1', and the other end is connected to the center tap 57' of the second coil 53' of the transformer 5'. The center tap 55' of the first coil 51' is connected to the ground line (not shown) of the external circuit board 1', and the two ends of the first coil 51' serve as the first side P' of the network path.

In this previous design, the positions of the transformer 5' and the common mode suppression module 7' can also be interchanged, that is, the first coil 51' of the transformer 5' passes through the conductive path 11' of the external circuit board 1', the transfer terminal 37' and the conductive path 331' of the built-in circuit board 33' are connected to the docking terminal 35', the docking terminal 35' is used as the first side P' of the network path, and the third and third sides of the common mode suppression module 7' The aforementioned one end of the fourth coil 73', 75' serves as the second side O' of the network path.

Figures 7 to 9 and Figures 12a to 12c show a third prior design of the applicant, which discloses an electrical connector system 100 comprising an external circuit board 2, an electrical connector mounted on the external circuit board 2 The connector 4, and the common mode suppression module 8 and the transformer 6 installed on the external circuit board 2 and the electrical connector 4 form a plurality of network paths, and these network paths have a first side P and an input end and an output end of each other. Second side O. The transformer 6 includes a first coil 61 and a second coil 63, the common mode suppression module 8 includes a third coil 83 and a fourth coil 85, the third and fourth coils 83, 85 are wound on the same magnetic core, and The common mode suppression module 8 is further provided with a main body 81 and a plurality of lead pins 87 disposed on the main body 81 , the third and fourth coils 83 , 85 are accommodated in the main body 81 and connected to the lead pins 87 . The two ends of the first coil 61 are connected to the above-mentioned first side P, the two ends of the second coil 63 are respectively electrically connected to one end of the third and fourth coils 83, 85, and the ends of the third and fourth coils 83, 85 The other end is connected to the second side O of the network path. The electrical connector 4 is provided with a built-in circuit board 43 inside the electrical connector 4 and several transfer terminals 47 connecting the built-in circuit board 43 and the external circuit board 2, and the transformer 6 is arranged on the built-in circuit board 43 for a total of The mode suppression module 8 is installed on the external circuit board 2, and the external circuit board 2 and the built-in circuit board 43 are respectively provided with a plurality of conductive paths 21, 431, and the two ends of the second coil 63 pass through the wires on the built-in circuit board 43 successively. The conductive path 431 , the transfer terminal 47 , the conductive path 21 on the external circuit board 2 and the conductive pin 87 realize the electrical connection with the third and fourth coils 83 and 85 . The built-in circuit board 43 and the external circuit board 2 are respectively provided with a plurality of conductive sheets 433, 23 connected to the conductive paths 431, 21, and the first and second coils 61, 63 are welded to the conductive plates of the built-in circuit board 43 respectively. piece 433 , and the surface of the guide pin 87 is welded to the conductive piece 23 of the external circuit board 2 .

The first and second coils 61, 63 are provided with center taps 65, 67, the center tap 65 of the first coil 61 is grounded, and the common mode suppression module 8 also includes a fifth coil wound on the same magnetic core 89 , the center tap 67 of the second coil 63 is electrically connected to the fifth coil 89 and grounded through the fifth coil 89 .

Figures 10, 11, 12a to 12c show a fourth prior design of the applicant, which discloses an electrical connector system 100 comprising an external circuit board 2' mounted on the external circuit board 2' The electrical connector 4', and the transformer 6' and common mode suppression module 8' installed on the external circuit board 2' and the electrical connector 4', to form a plurality of network paths, and these network paths have mutual input terminals and The first side P' and the second side O' of the output end, the transformer 6' includes a first coil 61' and a second coil 63', the common mode suppression module 8' includes a third coil 83' and a fourth coil 85', The third and fourth coils 83', 85' are wound together on the same magnetic core, and the common mode suppression module 8' is also provided with a main body 81' and several lead pins 87' arranged on the main body 81' , the third and fourth coils 83', 85' are housed in the main body 81' and connected to the lead pins 87'. Both ends of the first coil 61' are connected to the first side P', and the two ends of the second coil 63' are respectively electrically connected to one end of the third and fourth coils 83', 85'. The other ends of the coils 83', 85' are connected to the second side O' of the network path. The electrical connector 4' is provided with a built-in circuit board 43' inside the electrical connector 4' and several transfer terminals 47' connecting the built-in circuit board 43' and the external circuit board 2', and the common mode suppression module 8' is arranged on the built-in circuit board 43', the transformer 6' is installed on the external circuit board 2', and the external circuit board 2' and the built-in circuit board 43' are respectively provided with a number of conductive paths 21', 431', the third, The two ends of the fourth coil 83', 85' realize the communication with the conductive path 21' on the external circuit board 2' through the conductive pin 87', the conductive path 431' on the built-in circuit board 43', the transfer terminal 47' and the conductive path 21' on the external circuit board 2' sequentially. Both ends of the second coil 63' are electrically connected. The built-in circuit board 43' and the external circuit board 2' are also respectively provided with a plurality of conductive sheets 433', 23' connected to the conductive paths 431', 21', and the first and second coils 61', 63' are welded On the conductive sheet 23' of the external circuit board 2', the conductive pin 87' is surface welded to the conductive sheet 433' of the built-in circuit board 43'. The electrical connector 4' also includes a number of butt terminals 45' installed on the built-in circuit board 43', and the butt terminals 45' serve as the second side O' of the network path.

The first and second coils 61', 63' are provided with center taps 65', 67', the center tap 65' of the first coil 61' is grounded, and the common mode suppression module 8' also includes On the fifth coil 89' on the magnetic core, the center tap 67' of the second coil 63' is electrically connected to the fifth coil 89' and grounded through the fifth coil 89'.

In traditional connector products, the transformer and the common-mode suppression coil are conjoined. In this arrangement, the module composed of the transformer coil and the common-mode suppression coil needs to be wound manually, which is inefficient and poor in quality, and the cost of the connector is high. In various previous designs, we set up the coils of the transformer and the common mode suppression module independently and wound them in an automated manner, which not only improved the production efficiency of the transformer and the common mode suppression module, but also improved the quality of the coils. And it is easy to realize the automatic welding production of the transformer and the common mode suppression module in the electrical connector.

In addition, in order to save cost and facilitate assembly, the common mode suppression module can also be a standard chip coil, which can be easily surface-welded on the built-in circuit board. The magnetic core of the common-mode suppression module can be a single ring or a double-connected ring, and the coils of the common-mode suppression modules of the multiple network paths are all wound on the magnetic core. In each previous design, the transformer coil is a single toroidal magnetic core, and the first and second coils are wound on the magnetic core; the common mode suppression module does not need to set the fifth coil, and the center tap of the second coil is directly grounded (See Figure 12c), thereby saving costs.

The aforementioned four previously designed electrical connector systems all comply with the 10/100 network transmission standard and provide two network channels. Obviously, the electrical connector system can be set with different numbers of network channels to meet the needs of different transmission speeds , as shown in FIG. 12d, a circuit diagram meeting the 10/1000 network transmission speed standard is provided.

Please refer to FIG. 13 to FIG. 16 , which disclose partial perspective exploded views of four implementations of the present invention, and refer to FIGS. 12 a to 12 c for their circuit diagrams. As a further improvement, the utility model packs the previously designed transformer into an insulating casing 603, and the casing 603 is integrally formed with a plurality of lead pins 601, the first and second coils (not labeled) are formed by printed conductive layers, and A plurality of conductive strips 601 electrically connected to the first and second coils are formed on the surface of the transformer 600 , and are electrically connected to the conductive paths on the built-in circuit board or the external circuit board through the conductive strips 601 . The common mode suppression module 800 includes an insulating casing provided with a plurality of lead pins 801, a magnetic core (not shown) packed into the casing, and a third and fourth coil (not shown) wound on the magnetic core, The two ends of the third and fourth coils are respectively welded to the conductive pins 801 , and are electrically connected to the conductive paths on the built-in circuit board or the external circuit board through the conductive pins 801 . All the other structures and connections of the various embodiments of the utility model are basically the same as the aforementioned four previous designs.

The transformer 600 in the utility model is designed in a multi-layered manner. This structure can greatly reduce the volume of the transformer 600, improve its electrical performance, and facilitate installation; Modular structure, which facilitates automatic installation.

Claims (9)

1. electric connector system, in order to form network path, it comprises the external circuit board, be installed on the electric connector on the external circuit board and be installed on the external circuit board and the common mode inhibition module and the transformer of electric connector, this network path has first side and second side of input and output each other, transformer comprises first coil and second coil, the common mode inhibition module comprises tertiary coil and the 4th coil, the two ends of first coil are connected with above-mentioned first side, the two ends of second coil are electrically connected at an end of the 3rd and the 4th coil respectively, the other end of the 3rd and the 4th coil is connected to second side of network path, it is characterized in that: described transformer is set to the lamination type transformer, the transformer surface is provided with some guide-joining plates, described first, second coil is formed by printed conductive layer, first, the two ends of second coil are electrically connected at these guide-joining plates, described common mode inhibition module comprises and is provided with some housings that connect pin, the 3rd, the 4th coil is packed in this housing and its two ends are welded in these guide-joining plates respectively, and the 3rd, the correspondence of the 4th coil one end connects pin and electrically connects with the corresponding guide-joining plate at the second coil two ends respectively

2. electric connector system as claimed in claim 1, it is characterized in that: described electric connector is provided with the internal circuit board that is installed on electric connector inside, described transformer and the equal surface mount of common mode inhibition module are on this internal circuit board, and the corresponding guide-joining plate at the described second coil two ends connects pin by the correspondence that the conductive path on the internal circuit board is electrically connected at the 3rd, the 4th coil one end respectively.

3. electric connector system as claimed in claim 1, it is characterized in that: described transformer and the equal surface mount of common mode inhibition module are on described the external circuit board, and the corresponding guide-joining plate at the described second coil two ends electrically connects respectively by the corresponding pin that connects of the conductive path on the external circuit board and the 3rd, the 4th coil one end respectively.

4. electric connector system as claimed in claim 1, it is characterized in that: described electric connector is provided with internal circuit board that is in electric connector inside and the plurality of adapter coupling terminal that connects internal circuit board and the external circuit board, described transformer surface mount is on internal circuit board, common mode inhibition module surface mount is in the external circuit board, described the external circuit board and internal circuit board are respectively equipped with some conductive paths, and the two ends of described second coil are the guide-joining plate by transformer successively respectively, conductive path on the internal circuit board, conversion terminal, conductive path on the external circuit board, the pin that connects of common mode inhibition module is electrically connected at the 3rd, one end of the 4th coil.

5. electric connector system as claimed in claim 1, it is characterized in that: described electric connector is provided with internal circuit board that is in electric connector inside and the plurality of adapter coupling terminal that connects internal circuit board and the external circuit board, described common mode inhibition module surface mount is on internal circuit board, the transformer surface mount is on the external circuit board, described the external circuit board and internal circuit board are respectively equipped with some conductive paths, the 3rd, one end of the 4th coil is the pin that connects by the common mode inhibition module successively respectively, conductive path on the internal circuit board, conversion terminal, conductive path on the external circuit board, the guide-joining plate of transformer is electrically connected at the two ends of second coil.

6. electric connector system as claimed in claim 1, it is characterized in that: described first and second coil is equipped with centre cap, the centre cap ground connection of first coil, the common mode inhibition module also comprises the 5th coil, the centre cap of second coil is electrically connected at the 5th coil, and by the 5th coil ground connection.

7. electric connector system as claimed in claim 1 is characterized in that: described electric connector system is formed with a plurality of described network paths.

8. electric connector system as claimed in claim 1, it is characterized in that: described electric connector comprises the internal circuit board that is provided with conductive path and is installed on the butt joint terminal of internal circuit board that Network plug can be connected in first side of aforementioned network path by the conductive path of butt joint terminal, internal circuit board.

9. electric connector system as claimed in claim 1, it is characterized in that: described electric connector comprises the internal circuit board that is provided with conductive path and is installed on the butt joint terminal of internal circuit board that Network plug can be connected in second side of aforementioned network path by the conductive path of butt joint terminal, internal circuit board.

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