CN101662108A - Electric connector - Google Patents

Abstract

The invention relates to an electric connector capable of being installed on a circuit board. The electric connector comprises a body and a terminal module set arranged in the body, wherein the terminal module set comprises a butting terminal set, a plurality of transformers, a common-mode rejection winding, an adapting module set and a built-in circuit board; the built-in circuit board is used for bearing and connecting the butting terminal set, the transformers, the common-mode rejection winding and the adapting module set; the butting terminal set can electrically cooperate with a butting plug; differential signals transmitted by the butting plug can be transmitted to the circuit board by the adapting module set through the transformers and the common-mode rejection winding; windings ofall the transformers are connected to the built-in circuit board; and the common-mode rejection winding is arranged in the adapting module set and connected with the circuit board through the terminal of the adapting module set and the built-in circuit board. The design is convenient for the automatic production of terminal module sets and reduces the occupied space of the electric connector.

Description

Electric connector

[technical field]

The invention relates to a kind of electric connector, particularly about carrying the terminal modular structure of magnetic filter coil in this kind electric connector with magnetic filter coil.

[background technology]

At present, during the high speed netting twine connected, system manufacturer was for improving the utilance of circuit board, often tradition was arranged at the magnetic filter coil on the system board then was arranged in the electric connector.

[summary of the invention]

Technical problem to be solved by this invention provides a kind of electric connector with magnetic coil, the terminal modular structure compactness of its carrying magnetic coil, and be convenient to automated production.

For solving this technical problem, the invention provides a kind of electric connector on the circuit board that is installed on, it comprises body and is installed on this intrinsic terminal module that described terminal module comprises that further butt joint terminal group, some transformers, common mode choke coil and switching module reach in order to carry and to connect the internal circuit board of described butt joint terminal group, transformer, common mode choke coil and switching module.Described butt joint terminal group can cooperate with banjo conduction, the differential signal of banjo transmission can be by behind described transformer and the common mode choke coil, transfer to the aforementioned circuit plate by the switching module, the coil of transformer all is connected on the internal circuit board, the switching module comprises the intermediate terminal that is connected in internal circuit board, can be connected in the rear terminal on the circuit board and the container of carrying intermediate terminal and rear terminal, described common mode choke coil is arranged in the container, and an end of each common mode choke coil is connected with intermediate terminal, and the opposite other end is connected with rear terminal.

Relative prior art, the transformer of electric connector of the present invention separates with common mode choke coil, thereby is convenient to The Automation Design, and in addition, common mode choke coil is arranged in the conversion terminal module, can reduce the terminal module and take up room, thereby reduce the connector volume.

[description of drawings]

Fig. 1 is the stereogram of a kind of electric connector according to the invention.

Fig. 2 is that the shield shell of electric connector shown in Figure 1 is by the exploded view after breaking.

Fig. 3 is the exploded view that the terminal module of electric connector shown in Figure 1 is further broken.

Fig. 4 is the exploded view at another visual angle of electric connector shown in Figure 3.

Fig. 5 is switching module shown in Figure 3 and the common mode choke coil cutaway view along the A-A direction.

[embodiment]

Consult Fig. 1, it is disclosed as a kind of electric connector according to the invention 100.This electric connector 100 can be installed on the circuit board (not shown), and have a RJ45 interface and two USB interface of piling up setting, the one RJ45 banjo that transmits differential signal can insert the RJ45 interface and cooperate, and is connected to described circuit board by being electrically connected 100.

See also Fig. 2 to Fig. 5, the shield shell 21,22 that described electric connector 100 comprises insulating body 20, be installed on terminal module 400 in this insulating body 20, be covered in insulating body 20 and terminal module 400 and fasten mutually, described terminal module 400 further comprise butt joint terminal group 41, some transformers 43, common mode choke coil 45, switching module 47 and in order to carrying and connect the internal circuit board 40 of described butt joint terminal group 41, transformer 43, common mode choke coil 45 and switching module 47.Described butt joint terminal group 41 comprises some to being welded in the butt joint terminal 411 on the internal circuit board 40, these butt joint terminals 411 are arranged into row and are welded in internal circuit board 40, when the RJ45 banjo inserts in the aforementioned RJ45 interface, can dock terminal 411 conduction with these and cooperate, thus with differential signal transmission that RJ45 connector transmitted to terminal module 400.The coil of transformer all is connected on the internal circuit board 40, by internal circuit board 40 with dock terminal 411 and electrically connect with switching module 47.Switching module 47 comprises the intermediate terminal 471 that is connected in internal circuit board 40, extend insulating body 20 in order to the rear terminal 473 that is connected in circuit board and carrying intermediate terminal 471 container 470 with rear terminal 473, described common mode choke coil 45 is arranged in the container 470, and an end of each common mode choke coil 45 and intermediate terminal 471, the opposite other end is connected with rear terminal 473.Thereby differential signal is by butt joint terminal 411, can be by the conducting wire that is provided with on the internal circuit board 40, transfer to transformer coil 43, and pass internal circuit board 40 back, again by internal circuit board 40 and intermediate terminal 471, transfer to common mode choke coil 45, and, can transfer to the circuit board that electric connector 100 is installed finally by rear terminal 47.

Each transformer 43 comprises primary coil 431 and secondary coil 433, and each primary coil is connected a differential signal from banjo by internal circuit board 40 with butt joint terminal 411.The output signal of described secondary coil 433 filters out the part noise by transformer 43.One end of 433 liang of outputs of described secondary coil is by an internal circuit board 40 and an intermediate terminal 471, an end that connects a common mode choke coil 45, the other end of this common mode choke coil 45 connects a rear terminal 473, the other end of secondary coil 433 is by internal circuit board 40 and another intermediate terminal 471, an end that connects another common mode choke coil 45, the other end of this another common mode choke coil 45 connects another rear terminal 473 respectively, and this two common mode choke coil 45 further filters for the noise of differential signal.

Consult Fig. 5 and Fig. 6, aforementioned each common mode choke coil 45 all is wound on the same magnetic core (not label), makes common mode choke coil 45 volumes less like this, can be together with in magnetic core one lifting device and the insulating vessel 470.Aforementioned intermediate terminal 471 and rear terminal 473 are individually fixed in the relative both sides of common mode choke coil 45 in the insulating vessel 470, the two ends of aforementioned each common mode choke coil 45 are separately across a surface of crossing corresponding intermediate terminal 471 and rear terminal 473, and be welded in this surface, thereby realize aforementioned common mode choke coil 45 being connected to intermediate terminal 471 and rear terminal 473 by automatic technique.

Described internal circuit board 40 is provided with the plurality of conducting strips 401,403,405 of primary coil 431, secondary coil 433 and the intermediate terminal 471 of corresponding aforementioned transformer 43.Former limit and secondary coil across and be welded on each conducting strip 401,403, thereby realize the connection of aforementioned transformer 43 to internal circuit board 40.Described intermediate terminal 471 also surface soldered on the conducting strip 405 of internal circuit board 40.

Claims (8)

1. An electrical connector, which can be mounted on a circuit board, includes a body and a terminal module installed in the body, and the terminal module further includes a docking terminal group, several transformers, a common mode suppression coil and a transfer A module and a built-in circuit board for carrying and connecting the docking terminal group, transformer, common mode suppression coil and transfer module, the docking terminal group can be conductively matched with a docking plug that transmits a differential signal, and the docking plug transmits The differential signal can be transmitted to the aforementioned circuit board by the adapter module after passing through the transformer and the common mode suppression coil. It is characterized in that: the coils of the transformer are all connected to the built-in circuit board, and the adapter module includes The intermediate terminal, the tail terminal that can be connected to the circuit board, and the container that carries the intermediate terminal and the tail terminal, the common mode suppression coil is arranged in the container, and one end of each common mode suppression coil is connected to the intermediate terminal, and the other end of the opposite One end is connected to the tail terminal. 2. The electrical connector according to claim 1, wherein the butt terminal group includes a plurality of butt terminals arranged in a row, and the butt terminals are welded on the built-in circuit board for connecting the aforementioned butt plug. 3 . The electrical connector as claimed in claim 2 , wherein each transformer includes a primary coil and a secondary coil, and each primary coil is connected to a differential signal via a built-in circuit board and a butt terminal. 4 . 4 . The electrical connector as claimed in claim 3 , wherein two ends of the secondary coil are respectively connected to the tail terminal through the built-in circuit board, the intermediate terminal, and the common-mode suppression coil in sequence. 5. The electrical connector according to claim 1, wherein each of the aforementioned common-mode suppression coils straddles a surface corresponding to the intermediate terminal and the tail terminal, and is welded to the surface, thereby realizing the aforementioned common-mode suppression coil Connections to middle and rear terminals. 6. The electrical connector according to claim 1, wherein the built-in circuit board is provided with a plurality of conductive sheets corresponding to the aforementioned transformer coils, and the transformer coils straddle and are welded to each conductive sheet, thereby realizing the aforementioned common mode suppression Connection of the coil to the built-in circuit board. 7. The electrical connector according to claim 1, wherein the intermediate terminal is connected to the built-in circuit board by surface welding. 8. The electrical connector as claimed in claim 1, wherein the common mode suppression coils are all wound on the same magnetic core.

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