CN202564699U

CN202564699U - Electrical connector

Info

Publication number: CN202564699U
Application number: CN2012200435245U
Authority: CN
Inventors: 朱建军; 朱庆满
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2012-02-11
Filing date: 2012-02-11
Publication date: 2012-11-28
Anticipated expiration: 2022-02-11

Abstract

The utility model relates to an electrical connector comprising an electrical connector and cables, wherein the electrical connector is provided with a butt joint cavity and a circuit board which penetrate forward; the front end of the circuit board is provided with first contact pads which are arranged in the butt joint cavity; the back end of each first contact pad is provided with a second contact pad which is connected with the cables; the second contact pads form a plurality of contact pad groups; each contact pad group comprises a pair of signal contact pads and a grounding contact pad; and the adjacent contact pad groups are arranged back and forth in a staggered way, thus reducing signal crosstalk and reducing the width of the circuit board at the same time.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, relates in particular to a kind of electric connector with circuit board.

[background technology]

A kind of electric connector; The metal shell that it comprises circuit board and surrounds circuit board; The second contact golden finger that is arranged with some first contact golden fingers on the circuit board and is used to dock; Wherein the first contact golden finger is connected with cable, and the exposed heart yearn of cable ends is arranged side by side and is electrically connected to contact golden finger with first.But in order to reduce the signal cross-talk between the heart yearn, just must increase the spacing of the adjacent first contact golden finger, this can increase the width of circuit board undoubtedly, and this does not obviously meet the trend of current product miniaturization.

Therefore, the deficiency in view of the aforementioned electric connector is necessary to design a kind of new electric connector and solves the problems referred to above.

[utility model content]

The technical problem that the utility model solves: a kind of electric connector that prevents signal cross-talk and miniaturization is provided.

The technical problem that the utility model solves realizes through following technical scheme: a kind of electric connector; It comprises electrical connector and cable; Electrical connector is provided with butt joint chamber and the circuit board that runs through forward; The front end of circuit board is provided with first contact mat that is positioned at the butt joint chamber; The rear end of first contact mat is provided with second contact mat that is connected with cable, and second contact mat forms the some groups of contact mat groups that comprise an a pair of signal contact mat and a ground connection contact mat, and dislocation was arranged before and after adjacent contact pad group was.

Compared with prior art, the utility model electric connector has following beneficial effect: can reduce signal cross-talk like this, reduce the width of circuit board simultaneously.

[description of drawings]

Fig. 1 is the stereogram of the utility model electric connector.

Fig. 2 is the exploded view of Fig. 1.

Fig. 3 is the stereogram of the utility model circuit board and cable.

Fig. 4 is the view of another angle of Fig. 3.

[embodiment]

Like Fig. 1 and shown in Figure 2, the utility model electric connector comprises electrical connector 100, be fixed in the electrical connector upper surface separate fastener 30.Electrical connector 100 is provided with butt joint chamber 101 and is contained in the circuit board 20 in the butt joint chamber.

Metal shell 10 is to be formed by upper and lower two parts assembling, and it runs through formation butt joint chamber 101 forward, and its upper surface is provided with the holddown groove 12 that chute 11 reaches near the rear end.Separate fastener 30 1 ends and have width and reduce and slide on the elastic arm 31 in the chute, the other end is the draw ring 32 for being used to trip then.One spring 50 is contained in the holddown groove 12, and is resisted against and separates in the recess 33 that fastener is provided with near the centre position elastic force when being used to snap close is provided.70 of bolt 60 and stators are used for spring 50 and separate fastener 30 being fixed in metal shell 10.

With reference to Fig. 3 and Fig. 4, circuit board 20 is provided with some first contact mats 21 that are connected with cable 40 and second contact mat, 22, the first contact mats 21 are used for docking with socket connector (not shown).First, second contact mat is divided into some groups according to transfer protocol; Every group comprises that positive and negative differential signal is to reaching ground signalling; Be that it includes a pair of signal contact mat 211 and a ground connection contact mat 212, and the ground connection contact mat 212 of contact mat group is positioned at the same side of contact mat group.First, second contact mat is distributed in upper and lower surperficial 201,202 of circuit board.The upper surface 201 of circuit board also is provided with integrated electronics 23.

First contact mat 21 distributes along the Width of circuit board, form a line at the front end (being the butt end) of circuit board, and the rear end is align.Wherein the ground connection contact mat is outstanding forward than the signal contact mat, and realizes at first contact.Part second contact mat and above-mentioned integrated electronics 23 are used for control circuit; All the other first contact mats then electrically connect with second contact mat 22, and cooperate to form electric connection with docking facilities (butt joint terminal).

Second contact mat 22 is also arranged along two surfaces of the Width of circuit board, and the rear side that is arranged on first contact mat is roughly near the position in the middle.Dislocation was arranged before and after every groups of contact pad was on the length direction of circuit board, being in alignment with each other respectively again of front and back group.Four group of second contact mat 22 of following surperficial 202 is example; Along width of circuit board direction arrange successively

contact mat group

22a, 22b, 22c, 22d; Contact mat group 22a and the adjacent contact mat group 22b arrangement of on the circuit board length direction, staggering; But contact mat group 22a aligns on the circuit board length direction with contact mat group 22c (or contact mat group 22b and contact mat group 22d), and promptly four contact mat groups (21a to 21d) are lined up two rows.

Cable 40 ends have exposed heart yearn 41, and heart yearn comprises a pair of difference signal terminal 411 and an earth terminal 412.Difference signal terminal 411 is connected with

signal contact mat

211a, and 412 of earth terminals are connected with ground connection contact mat 212a.The also dislocation arrangement before and after the circuit board length direction is of each core assembly line.Stagger one by one between the adjacent heart yearn 41 and second contact mat 22, promptly stagger each other between difference signal terminal and the signal contact mat, greatly reduce adjacent differential signal between signal cross-talk.The second adjacent contact mat 22, such as contact mat group 22a and contact mat group 22b, because front and back stagger, contact mat group even can overlap on Width top under the permission of cable width is to reduce the width of circuit board.

Claims

1. electric connector; It comprises electrical connector and cable; Electrical connector is provided with butt joint chamber and the circuit board that runs through forward, and the front end of circuit board is provided with first contact mat that is positioned at the butt joint chamber, and the rear end of first contact mat is provided with second contact mat that is connected with cable; Second contact mat forms the some groups of contact mat groups that comprise an a pair of signal contact mat and a ground connection contact mat, it is characterized in that: dislocation was arranged before and after adjacent contact pad group was.

2. electric connector as claimed in claim 1 is characterized in that: part second contact mat is used for control circuit, and all the other second contact mats then electrically connect with first contact mat, and cooperates formation to electrically connect with docking facilities.

3. electric connector as claimed in claim 1 is characterized in that: said contact mat group is lined up two rows on fore-and-aft direction.

4. electric connector as claimed in claim 3 is characterized in that: the rear end of first contact mat is align.

5. electric connector as claimed in claim 4; It is characterized in that: said cable ends has some exposed heart yearns; Each heart yearn includes a pair of difference signal terminal and an earth terminal, and difference signal terminal is connected with the signal contact mat, and earth terminal then is connected with the ground connection contact mat.

6. electric connector as claimed in claim 4 is characterized in that: adjacent two contact mat groups overlap on Width top.

7. electric connector as claimed in claim 4 is characterized in that: the ground connection contact mat of contact mat group is positioned at the same side of contact mat group.