CN110808493A

CN110808493A - Electrical connector

Info

Publication number: CN110808493A
Application number: CN201810883703.1A
Authority: CN
Inventors: 庄顺荣
Original assignee: Foxconn Interconnect Technology Ltd
Current assignee: Foxconn Interconnect Technology Ltd
Priority date: 2018-08-06
Filing date: 2018-08-06
Publication date: 2020-02-18
Anticipated expiration: 2038-08-06
Also published as: TW202015293A; TWI821353B; CN110808493B

Abstract

The invention provides an electric connector, which comprises an insulating body, a plurality of conductive terminals, a shielding shell, a plurality of cables and a metal shell, wherein the insulating body comprises a substrate and a butt joint convex part, the conductive terminals comprise a signal terminal and a grounding terminal, each conductive terminal comprises a fixing part fixed on the substrate, a butt joint part fixed on the butt joint convex part and a contact part exposed out of the surface of the substrate, the cables respectively comprise a wire core and a shielding layer, the wire core is respectively and electrically connected with the contact part of the signal terminal, the metal shell accommodates the insulating body and is provided with an opening for the shielding shell to protrude outwards, the metal shell comprises a plurality of connecting parts electrically connected with the shielding layer, and the metal shell is abutted against the contact part of the grounding terminal and the shielding shell so as to electrically connect the grounding terminal, the shielding shell and the metal shell with the shielding layers of the cables.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector, and more particularly to an electrical connector capable of transmitting multiple sets of signals.

[ background of the invention ]

In the prior art, a coaxial connector usually has one terminal set, which can only transmit a single signal, and the application has limitations, so please refer to patent No. TW201405980A disclosed in taiwan, which discloses a coaxial connector having two pairs of terminal sets to meet the requirement of multi-group signal transmission, but in the former case, two pairs of terminal sets are adjacent and no shielding structure is disposed between the two pairs of terminal sets, when transmitting a high frequency signal, signal interference is likely to occur between the two pairs of terminal sets to affect the stability of the signal, which is not beneficial to high frequency signal transmission, and the cable in the former case is directly welded to the terminal, and when the cable is pulled, the terminal is likely to be driven, which causes the terminal damage.

Therefore, there is a need to provide a new electrical connector to overcome the above-mentioned drawbacks.

[ summary of the invention ]

The invention aims to provide an electric connector which can transmit a plurality of groups of signals and has the advantages of better signal shielding, interference resistance and good structural strength.

The purpose of the invention is realized by the following technical scheme: an electric connector comprises an insulating body, a plurality of conductive terminals fixed on the insulating body, a shielding shell fixed on the insulating body, a plurality of cables and a metal shell fixed outside the insulating body, wherein the insulating body comprises a substrate and butt joint convex parts formed by protruding from the substrate, the conductive terminals comprise signal terminals and grounding terminals, each conductive terminal comprises a fixing part fixed on the substrate, a butt joint part extending from one end of the fixing part and fixed on the butt joint convex parts and a contact part exposed out of the surface of the substrate, the cables respectively comprise wire cores positioned at the middle positions and shielding layers surrounding the wire cores, the wire cores of the cables are respectively electrically connected with the contact parts of the signal terminals, and the metal shell accommodates the insulating body and is provided with an opening for the shielding shell to protrude outwards, the metal shell comprises a plurality of connecting parts electrically connected with the shielding layers of the cables, and the metal shell is pressed against the contact part of the grounding terminal and the shielding shell so as to electrically connect the grounding terminal, the shielding shell and the metal shell with the shielding layers of the cables.

Furthermore, the substrate of the electrical connector of the present invention includes a first surface and a second surface opposite to the first surface, the abutting convex portion and the shielding shell are located on the first surface, the rear end of the substrate extends backwards to form a plurality of receiving portions respectively having receiving grooves, the second surface of the substrate is concavely provided with a groove, the receiving grooves of the receiving portions are communicated with the groove, the contact portions of the signal terminals of the plurality of conductive terminals are exposed in the receiving grooves, the contact portions of the ground terminals of the plurality of conductive terminals are exposed on the first surface of the substrate, and the wire cores of the plurality of cables are inserted into the receiving grooves to be electrically connected with the contact portions of the signal terminals.

Furthermore, the electric connector of the electric connector further comprises a fixing plate fixed on the second surface of the substrate, the fixing plate comprises an outer plate part and a plurality of protruding parts formed by extending backwards from the rear end of the outer plate part, the outer plate part is provided with an extending part matched with the groove, and the protruding parts respectively comprise pressing parts inserted and matched in the bearing grooves to press the wire cores.

Furthermore, two sides of the receiving groove of the receiving part of the electrical connector form spacing parts, the end face of each spacing part is flush with the second surface of the substrate, the wire core is clamped between the two spacing parts and is pressed on the surface of the contact part of the signal terminal by the pressing part, the rear end of the metal shell extends backwards to form a plurality of connecting parts, each connecting part at least comprises a first claw part, and the first claw parts clamp the receiving part and the protruding part.

Furthermore, the metal shell of the electrical connector of the present invention includes a first plate portion and a second plate portion opposite to the first plate portion and fastened to the first plate portion, an accommodating space for accommodating the insulating body is formed between the first plate portion and the second plate portion, a plurality of connecting portions extend rearward from rear ends of the first plate portion and the second plate portion, the connecting portions of the first plate portion and the second plate portion are disposed at intervals, each connecting portion includes at least a second claw portion, the second claw portion is clamped to the shielding layers of the cables, and the first plate portion includes a convex portion abutting against the contact portion of the ground terminal of the conductive terminals.

Furthermore, the shielding shell of the electric connector comprises a frame body which is arranged outside the butting convex part in a surrounding mode and a grounding part which is formed by bending and locating at the lower edge of the frame body, the grounding part of the shielding shell is exposed out of the first surface of the substrate, and the edges of two sides of the first plate body part are pressed against the grounding part of the shielding shell.

Further, the first plate portion of the electrical connector of the present invention includes a first portion located at a front end and a second portion located at a rear end of the first portion, the first portion is a frame having the opening, an edge of the first portion abuts against the ground portion of the shielding shell, the second portion includes a strip portion and an extending portion formed by bending and extending from two lateral sides of the strip portion, the extending portion and the first portion are located in a same horizontal plane as a whole, the plurality of protruding portions are located in the strip portion, the second plate portion includes a press-bonding portion formed by bending a flat plate portion from an edge of the flat plate portion toward the first plate portion, and the press-bonding portion clamps the edge of the first portion and the extending portion.

Furthermore, the connecting portion of the first body portion and the second body portion of the electrical connector further includes a third claw portion, the cable further includes an outer insulating layer wrapping the shielding layer, the shielding layer and the outer insulating layer of the cable are located outside the metal shell, and the third claw portion clamps the outer insulating layer.

Furthermore, the plurality of conductive terminals of the electrical connector of the present invention are disposed side by side and include at least two signal terminals and two ground terminals located between the at least two signal terminals, the at least two signal terminals are located at the outermost sides of the plurality of conductive terminals, the contact portions of the plurality of conductive terminals define a first plate-shaped contact portion of the signal terminal and a second contact portion having a plate-shaped portion and a contact piece formed by tearing the plate-shaped portion, the holding portions of the two ground terminals located between the at least two signal terminals are commonly connected to the plate-shaped portion of the second contact portion, and the contact piece is exposed on the second surface of the substrate.

Furthermore, the plurality of conductive terminals of the electrical connector of the present invention include four signal terminals and six ground terminals, two signal terminals of the four signal terminals are located at the outermost two sides of the plurality of conductive terminals, the other two signal terminals are located between the two signal terminals at the outermost two sides, the six ground terminals are divided into three groups in which two ground terminals are in one group, each group of ground terminals is located between two adjacent signal terminals, and the plurality of cables are four cables corresponding to the four signal terminals respectively.

Compared with the prior art, the electric connector has the following beneficial effects: the insulation body, the conductive terminal and the shielding shell are integrally injection-molded into a whole and are fixed more firmly, so that the conductive terminal cannot be damaged by being pulled by the cable; furthermore, as the grounding terminal is arranged between two adjacent signal terminals in the conductive terminal, the signal interference between the two signal terminals can be effectively prevented; furthermore, the conductive terminal is surrounded by the shielding shell, and the metal shell electrically connects the conductive terminal and the shielding shell with the shielding layer of the cable, so that all parts of the plug connector for transmitting signals are shielded and protected, and the stability of transmitting high-frequency signals is facilitated.

[ description of the drawings ]

FIG. 1 is a perspective view of the electrical connector of the present invention;

FIG. 2 is a perspective view of FIG. 1 from another direction;

fig. 3 is an exploded perspective view of the electrical connector of the present invention;

FIG. 4 is an exploded perspective view of FIG. 3 from another direction;

FIG. 5 is a partially exploded perspective view of the housing, the conductive terminals, the shielding shell and the cable of the electrical connector of the present invention;

FIG. 6 is a partially exploded perspective view of FIG. 5 from another direction;

FIG. 7 is a perspective view of the electrical connector of the present invention with the housing, the conductive terminals, the shielding shell and the cable assembled together;

FIG. 8 is a perspective view of FIG. 7 from another direction;

fig. 9 is a partially exploded perspective view of the housing, the conductive terminals, the shielding shell, the cable and the fixing plate of the electrical connector of the present invention;

fig. 10 is a partial exploded perspective view of the electrical connector of the present invention;

FIG. 11 is a partially exploded perspective view of FIG. 10 from another direction;

fig. 12 is a partial exploded perspective view of the electrical connector of the present invention;

fig. 13 is a perspective view of the conductive terminals and the cable of the electrical connector of the present invention;

FIG. 14 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 15 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 16 is a cross-sectional view taken along line C-C of FIG. 1;

fig. 17 is a perspective view of the docking connector and the circuit board according to the present invention.

[ description of main reference symbols ]

Electric connector 100 insulation body 1

First surface 12 of substrate 11

Side part 14 of butt convex part 13

Second surface 16 of positioning hole 15

Receiving part 18 of groove 17

Spacer 181 receiving groove 182

Conductive terminal 2 butt joint part 21

Contact portion 23 of holding portion 22

First contact 24 and second contact 25

Plate-like portion 26 contacts piece 27

Signal terminal S ground terminal G

The first space 31 of the shield case 3

Frame 32 first grounding part 33

Outer plate part 41 of fixed plate 4

Extension 42 tab 43

Pressing part 44 cable and signal cable 5

Inner insulation layer 52 of wire core 51

Outer insulating layer 54 of shield layer 53

Metal shell 6 accommodating space 600

First plate body portion 61 first portion 62

Second portion 63 of opening 621

Stripe 631 and convex 632

The extension 633 is a first clamping part 634

Second plate portion 64 flat plate portion 641

Crimping portion 642 second clamping portion 643

First claw part 65 and second claw part 66

Third claw 67 clamping opening 68

Mating connector 7 insulator 71

Base 72 annular abutment wall 721

Butt-joint slot 722 butt-joint terminal 8

Elastic part 81 welding leg 82

Metal casing 9 frame 91

Second ground 92 circuit board 700

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

[ detailed description ] embodiments

Hereinafter, an embodiment of the electrical connector 100 of the present invention will be described with reference to fig. 1 to 16. The directions of the present invention are defined with reference to fig. 1, the mating direction of the electrical connector 100 and the mating connector 7 is defined as the up-down direction, the horizontal direction perpendicular to the up-down direction and the front-back direction perpendicular to the up-down direction and the horizontal direction, and the cable 5 in fig. 1 is located at the rear end of the whole electrical connector 100.

Referring to fig. 1 to 16, the electrical connector 100 includes an insulating housing 1, a plurality of conductive terminals 2 fixed on the insulating housing 1, a shielding shell 3 fixed on the insulating housing 1, a fixing plate 4 fixed on the insulating housing 1, a plurality of cables 5, and a metal shell 6 fixed outside the insulating housing 1.

Referring to fig. 1 to 16, the insulating body 1 includes a substrate 11. The substrate 11 includes a first surface 12 and a second surface 16 opposite to the first surface 12. The first surface 12 of the substrate 11 is formed with a docking protrusion 13 protruding from the front side and side portions 14 located at two sides of the docking protrusion 13. The second surface 16 of the substrate 11 is recessed to form a recess 17. Four receiving portions 18 are formed at the rear end of the base plate 11 so as to project rearward. The two sides of the lower surface of the receiving portion 18 are formed with a spacing portion 181 in a protruding manner. Each of the spacers 181 is located within the recess 17 with a free end flush with the second surface 16. A receiving groove 182 is formed between the two partition portions 181 of each receiving portion 18. Four positioning holes 15 are provided at positions rearward of the first surface 12, in front of the four receiving portions 18, respectively. The four positioning holes 15 are arranged transversely.

Referring to fig. 3 to 7 and 13, the number of the conductive terminals 2 is ten, and includes four signal terminals S and six ground terminals G. Two signal terminals S of the four signal terminals S are located at the outermost two sides of the ten conductive terminals 2, and the other two signal terminals S are located between the two outermost signal terminals S. Six ground terminal G divide into two ground terminal G and are three groups of a set of, and lie in respectively between two adjacent signal terminal S, be provided with two ground terminal G between two adjacent signal terminal S promptly, the arrangement mode promptly is: one signal terminal S, two ground terminals G, and one signal terminal S. Each of the conductive terminals 2 includes a holding portion 22 held by the insulating housing 1, an n-shaped abutting portion 21 bent and extended from one end of the holding portion 22, and a contact portion 23 extended from the other end of the holding portion 22. The contact portion 23 includes a first contact portion 24 of the signal terminal S and a second contact portion 25 of the ground terminal G. The first contact portion 24 of the signal terminal S has a plate-shaped structure and is exposed to the inner surface of the groove 17. The first contact portions 24 of the four signal terminals S respectively extend into the receiving grooves 182 of the four receiving portions 18. The holding portions 22 of two ground terminals G located between two adjacent signal terminals S are commonly connected to one of the second contact portions 25, that is, six ground terminals G are provided with three second contact portions 25, so that the number of the second contact portions 25 can be reduced, which is beneficial to production and ensures the contact stability of the ground terminals G with other components. The second contact portion 25 includes a plate-shaped portion 26, a contact piece 27 formed by tearing from the plate-shaped portion 26, and a tear port (not shown) formed in the plate-shaped portion 26. The contact piece 27 is exposed between two adjacent positioning holes 15 of the first surface 12.

Referring to fig. 3 to 5, the shielding shell 3 includes a frame 32 and a first grounding portion 33 formed by bending a lower edge of the frame 32. The frame 32 surrounds the abutting convex portion 13 and forms a first space 31 with the abutting convex portion 13.

Referring to fig. 3, 4 and 9, the fixing plate 4 is made of an insulating material and has a plate-shaped structure. The fixing plate 4 includes an outer plate portion 41 and four protruding portions 43 formed to extend rearward from a rear end of the outer plate portion 41. The outer plate portion 41 is formed with an extension portion 43 protruding therefrom. The four extending portions 41 are respectively formed with pressing portions 44 in a protruding manner. The extension 43 is disposed corresponding to the groove 17. The pressing portion 44 is correspondingly inserted into the receiving groove 182 between the two spacing portions 181 of the receiving portion 18.

Referring to fig. 5 to 9, the plurality of cables 5 are four signal cables 5. Each of the signal cables 5 includes a core 51 located at a central position, an inner insulating layer 52 covering the core 51, a shielding layer 53 covering the inner insulating layer 52, and an outer insulating layer 54 covering the shielding layer 53. The wire cores 51 of the four signal cables 5 are respectively and electrically connected to the first contact portions 24 of the four signal terminals S, so as to transmit different signals.

Referring to fig. 3, 4, 11 and 12, the metal shell 6 includes a first plate portion 61 and a second plate portion 64 opposite to the first plate portion 61. An accommodating space 600 for accommodating the insulating body 1, the fixing plate 4, and the four signal cables 5 is formed between the first plate portion 61 and the second plate portion 64. The connecting portions include two first clamping portions 634 and two second clamping portions 643. The first plate body portion 61 includes a first portion 62 located at the front end and a second portion 63 located behind the first portion 62. The first portion 62 is a frame member formed with an opening 621. The second portion 63 includes a strip portion 631, two extending portions 633 formed by bending and extending at two lateral sides of the strip portion 631, and two first clamping portions 634 formed by extending from a rear end of the strip portion 631 to a rear end. The strip portion 631 is concavely provided with three convex portions 632 corresponding to the three second contact portions 25, respectively. The two extensions 633 are located entirely in the same horizontal plane as the first part 62. The second plate portion 64 includes a flat plate portion 641, two pressure-contact portions 642 extending from both lateral sides of the flat plate portion 641 to the first plate portion 61, and two second clamping portions 643 extending rearward from a rear end of the flat plate portion 641. The second plate portion 64 is buckled above the first plate portion 61. The two first clamping portions 634 are spaced apart from the two second clamping portions 643. Each of the first clamping portions 634 and each of the second clamping portions 643 includes a first claw portion 65, a second claw portion 66, and a third claw portion 67 from the front to the rear. The first claw portion 65, the second claw portion 66, and the third claw portion 67 are formed by bending and have respective clamping openings 68. The clamping openings of the first claw part 65, the second claw part 66 and the third claw part 67 positioned on the same connecting part face the same direction. The first clamping portion 634 is opposite to the clamping openings 68 of the first claw portion 65, the second claw portion 66 and the third claw portion 67 of the second clamping portion 643 in direction. The first plate portion 61 and the second plate portion 64 of the electrical connector 100 of the present invention may be separately disposed or the second plate portion 64 may be bent from the front end of the first plate portion 61 to be fastened above the first plate portion 61. In a preferred embodiment of the present invention, the second plate portion 64 is provided separately from the first plate portion 61. A press-contact portion 642 formed by bending toward the first plate portion 61 is also provided at the front end of the flat plate portion of the second plate portion 64.

In the electrical connector 100 defined in the present invention, please refer to fig. 5 and 6, the insulative housing 1, the ten conductive terminals 2 and the shielding shell 3 are integrally formed by injection molding. The shielding shell 3 is held on the first surface 12 of the substrate 11. Two sides of the frame 32 of the shielding shell 3 wrap the two side parts 14 of the insulating body 1. The mating portion 21 of each of the conductive terminals 2 is exposed to the mating protrusion 13. The holding portion 22 of each signal terminal S and each ground terminal G is exposed in the recess 17 of the second surface 16 of the substrate 11. The four positioning holes 15 of the substrate 11 correspond to the four signal terminals S, so that the mold core can position the four signal terminals S in the vertical direction during the injection molding of the insulation body 1. The contact piece 27 of the second contact portion 25 of the ground terminal G passes through the substrate 11 and is exposed to the first surface 12 of the substrate 11. The contact pieces 27 of the three second contact portions 25 are respectively located between two adjacent positioning holes 15. During the injection molding of the insulation body 1, the mold core may penetrate through the tearing opening (not numbered) in the up-down direction to position the contact piece 27, and the insulation body may be better fixed with the plate portion 26 including the periphery of the tearing opening (not numbered) to the second contact portion 25. The first ground portion 33 of the shield case 3 is exposed to the first surface 12.

Referring to fig. 5 to 8, the four signal cables 5 correspond to the four receiving portions 18 of the insulating main body 1. The core 51 of each signal cable 5 is inserted into the corresponding receiving groove 182 to electrically connect with the corresponding first contact portion 24. The core 51 of the signal cable 5 is electrically connected with the signal terminal S to transmit a signal. Referring to fig. 9 to 11, the fixing plate 4 is disposed on the second surface 16 of the substrate 11. The extension 42 of the fixing plate 4 is inserted into the groove 17. The three pressing portions 44 are respectively inserted into the receiving grooves 182 to press the wire cores 51 of the signal cables 5 in the receiving grooves 182 against the surface of the first contact portion 24. The edge of the outer plate portion 41 of the fixing plate 4 corresponds to the edge of the insulating body 1 and is in smooth transition.

Referring to fig. 10 to 12, the first plate portion 61 is disposed on the first surface 12 of the substrate 11. The frame 33 of the shielding housing 3 is partially inserted through the opening 621 to be mated with the mating connector 7. The first claw portions 65 of the two first clamping portions 634 respectively clamp the two receiving portions 18 and the protruding portions 43, so as to ensure that the protruding portions 43 can firmly press the wire core 51 to ensure the stability of the electrical connection between the wire core 51 and the first contact portion 24. The second claws 66 of the two first clamping portions 634 respectively clamp the shielding layers 53 of the two signal cables 5, so that the first plate body portion 61 of the metal shell 6 and the shielding layer 53 of the signal cable 5 are electrically connected to ground. The third claw portions 67 of the two first clamping portions 634 respectively clamp the outer insulating layers 54 of the two signal cables 5 for fixing. The lower surfaces of the two lateral edges of the first portion 62 of the first plate portion 61 are in contact with the first ground portion 33 of the shield case 3, so that the shield case 3 and the shield layer 53 of the signal cable 5 are electrically connected to ground. The three protrusions 632 of the strip-shaped portion 631 of the second portion 63 respectively press against the contact pieces 27 of the three second contact portions 25 exposed on the first surface 12, so that the six ground terminals G are electrically connected to the shielding layer 53 of the signal cable 5. The second plate portion 64 is mounted to the second surface 16 of the insulating body 1. The crimping portion 642 of the second plate body portion 64 sandwiches the front end edge and the edges on both lateral sides of the first portion 62 of the first plate body portion 61 and the two outer extensions 633 of the strip-fitting portion 631. The first claws 65 of the two second holding portions 643 of the second plate body portion 64 hold the other two receiving portions 18 and the extending portions 42, respectively. The second claws 66 of the two second holding portions 643 hold the shielding layers 53 of the other two signal cables 5, respectively. The third claws 67 of the two second holding portions 643 hold the outer insulating layers 54 of the other two signal cables 5, respectively. The first plate portion 61 and the second plate portion 64 firmly fix the insulating body 1, the fixing plate 4 and the four signal cables 5. Since the first and

second clamping portions

634 and 643 are disposed at intervals and are disposed on the first and

second plate portions

61 and 64, respectively, the first and

second plate portions

61 and 64 are effectively prevented from being separated, and the four signal cables 5 are prevented from being completely separated by any one of the four signal cables 5.

The electrical connection between the wire cores 51 of the four signal cables 5 and the four first contact portions 24 of the electrical connector of the present invention may be that the wire cores 51 are pressed into the receiving grooves 182 by the spacing portions 181 and the pressing portions 44 of the fixing plate 4 to be press-fitted with the first contact portions 24, and in addition, the electrical connection between the second contact portion 25 of the ground terminal G of the electrical connector 100, the first grounding portion 33 of the shielding shell 3, the first plate body portion 61 of the metal shell 6, the second plate body portion 64 and the shielding layer 53 of the signal cable 5 may also be press-fitted, so as to reduce the manufacturing cost and facilitate the production. The fixing mode can also be fixed by welding modes such as SMT, laser welding and the like, and the aim of the invention can also be achieved.

The ten conductive terminals 2 are fixed in the insulating body 1 by injection molding of the insulating body 1, so that each conductive terminal 2 is not damaged by being pulled by the cable 5. Furthermore, two ground terminals G are disposed between two adjacent signal terminals S, so that signal interference between the two signal terminals S can be effectively prevented. Furthermore, the metal shell 6 is electrically connected to the shielding layer 53 of the cable 5, so that the metal shell 6 can protect the components in the accommodating space 600 from being damaged by external impact, and can also perform a good shielding function on the components accommodated in the accommodating space 600, thereby ensuring the stability of signal transmission, and being particularly beneficial to the transmission of high-frequency signals. Further, since the ground terminal G, the shield case 3, and the metal shell 6 are all electrically connected to the shield layer 53 of the cable 5, the number of cables for electrical connection to ground can be reduced, which leads to cost reduction and a simple structure.

Referring to fig. 17, the docking connector 7 mated with the electrical connector 100 of the present invention is electrically connected to a circuit board 700. The butting connector 7 includes an insulator 71, ten butting terminals 8 held on the insulator 71 and arranged corresponding to the ten conductive terminals 2, and a metal shell 9 held outside the insulator 71.

The insulator 71 includes a base 72, an annular abutment wall 721 projecting upwardly from the base 72 and having an abutment slot 722.

The ten mating terminals 8 are arranged in the same manner as the ten conductive terminals 2. Each of the second terminals includes a fixing portion (not shown) held in the insulator 71, an elastic portion 81 extending from one end of the fixing portion (not shown) to be suspended in the mating groove 722 in a u shape, and a solder leg 82 extending from the other end of the fixing portion (not shown) to the base portion 72.

The metal housing 9 includes a frame 91 wrapped outside the annular abutting wall 721 and a second grounding pin 92 formed by bending a lower edge of the frame 91.

The insulator 71 and the metal shell 9 are integrally injection-molded. The ten counterpart terminals 8 are inserted into the insulator 71.

When the electrical connector 100 is mated with the mating connector 7, the mating protrusion 13 is inserted into the mating groove 722 to electrically connect the ten conductive terminals 2 and the ten mating terminals 8, the annular mating wall 721 and the frame 91 are integrally inserted into the first space 31, and the outer surface of the frame 91 abuts against the inner surface of the frame 32 of the shielding housing 3. At this time, the conductive terminals 2 and the mating terminals 8 are surrounded by the shielding shell 3 and the metal shell 6 to ensure that the conductive terminals are not interfered by external signals.

In the above preferred embodiments of the present invention, the number of the conductive terminals and the number of the butt terminals can be increased or decreased, and only the ground terminal G is required to be disposed between two adjacent signal terminals S.

The above description is only a part of the embodiments of the present invention, and not all embodiments, and any equivalent variations of the technical solutions of the present invention, which are made by those skilled in the art through reading the present specification, are covered by the claims of the present invention.

Claims

1. An electrical connector, comprising: the electric connector comprises an insulating body, a plurality of conductive terminals fixed on the insulating body, a shielding shell fixed on the insulating body, a plurality of cables and a metal shell fixed outside the insulating body, wherein the insulating body comprises a substrate and butt joint convex parts formed by protruding from the substrate, the conductive terminals comprise signal terminals and grounding terminals, each conductive terminal comprises a fixing part fixed on the substrate, a butt joint part extending from one end of the conductive terminal to be fixed on the butt joint convex part and a contact part exposed out of the surface of the substrate, the cables respectively comprise wire cores positioned in the middle and shielding layers surrounding the wire cores, the wire cores of the cables are respectively electrically connected with the contact parts of the signal terminals, and the metal shell accommodates the insulating body and is provided with an opening for the shielding shell to protrude outwards, the metal shell comprises a plurality of connecting parts electrically connected with the shielding layers of the cables, and the metal shell is pressed against the contact part of the grounding terminal and the shielding shell so as to electrically connect the grounding terminal, the shielding shell and the metal shell with the shielding layers of the cables.

2. The electrical connector of claim 1, wherein: the base plate comprises a first surface and a second surface opposite to the first surface, the butt joint convex part and the shielding shell are located on the first surface, the rear end of the base plate extends backwards to form a plurality of bearing parts respectively provided with bearing grooves, the second surface of the base plate is concavely provided with a groove, the bearing grooves of the bearing parts are communicated with the groove, the contact parts of the signal terminals of the plurality of conductive terminals are exposed in the bearing grooves, the contact parts of the grounding terminals of the plurality of conductive terminals are exposed on the first surface of the base plate, and the cable cores of the plurality of cables are inserted in the bearing grooves to be electrically connected with the contact parts of the signal terminals.

3. The electrical connector of claim 2, wherein: the electric connector further comprises a fixing plate fixed on the second surface of the substrate, the fixing plate comprises an outer plate part and a plurality of protruding parts formed by extending backwards from the rear end of the outer plate part, the outer plate part is provided with an extending part matched with the groove, and the protruding parts respectively comprise pressing parts inserted and matched in the bearing grooves to press the wire cores.

4. The electrical connector of claim 3, wherein: spacing parts are formed on two sides of the bearing groove of the bearing part, the end face of each spacing part is flush with the second surface of the substrate, the wire core is clamped between the two spacing parts and is pressed on the surface of the contact part of the signal terminal by the pressing part, a plurality of connecting parts extend backwards from the rear end of the metal shell, each connecting part at least comprises a first claw part, and the bearing part and the protruding part are clamped by the first claw parts.

5. The electrical connector of claim 2, wherein: the metal shell comprises a first plate body portion and a second plate body portion, wherein the second plate body portion is opposite to the first plate body portion and buckled with the first plate body portion, an accommodating space for accommodating the insulation body is formed between the first plate body portion and the second plate body portion, a plurality of connecting portions extend backwards from the rear ends of the first plate body portion and the second plate body portion, the connecting portions of the first plate body portion and the second plate body portion are arranged at intervals, each connecting portion at least comprises a second claw portion, the second claw portions are clamped on shielding layers of a plurality of cables, and the first plate body portion comprises a convex portion which is abutted to contact portions of grounding terminals of a plurality of conductive terminals.

6. The electrical connector of claim 5, wherein: the shielding shell comprises a frame body which is arranged outside the butt joint convex part in a surrounding mode and a grounding part which is formed by bending the lower edge of the frame body, the grounding part of the shielding shell is exposed out of the first surface of the substrate, and the edges of two sides of the first plate body part are pressed against the grounding part of the shielding shell.

7. The electrical connector of claim 6, wherein: the first plate body part comprises a first part and a second part, the first part is a frame part with the opening, the edge of the first part is pressed against the grounding part of the shielding shell, the second part comprises a strip part and an extending part formed by bending and extending from two transverse sides of the strip part, the extending part and the first part are integrally positioned in the same horizontal plane, the plurality of convex parts are positioned in the strip part, the second plate body part comprises a press-connection part formed by bending a flat plate part from the edge of the flat plate part to the first plate body part, and the press-connection part clamps the edge of the first part and the extending part.

8. The electrical connector of claim 5, wherein: the connecting portion of the first body portion and the second body portion further comprises a third claw portion, the cable further comprises an outer insulating layer wrapping the shielding layer, the shielding layer and the outer insulating layer of the cable are located outside the metal shell, and the third claw portion clamps the outer insulating layer.

9. The electrical connector of claim 2, wherein: the plurality of conductive terminals are arranged side by side and comprise at least two signal terminals and two grounding terminals positioned between the at least two signal terminals, the at least two signal terminals are positioned at the outermost two sides of the plurality of conductive terminals, the contact parts of the plurality of conductive terminals are defined into a plate-shaped first contact part of the signal terminals and a second contact part of a contact piece which is provided with a plate-shaped part and formed by tearing the plate-shaped part, the fixing parts of the two grounding terminals positioned between the at least two signal terminals are commonly connected with the plate-shaped part of the second contact part, and the contact piece is exposed out of the second surface of the substrate.

10. The electrical connector of claim 9, wherein: a plurality of conductive terminals include four signal terminal and six ground terminal, two signal terminal in four signal terminal are located a plurality of conductive terminal's outermost both sides, and two other signal terminal are located between two signal terminal of outermost both sides, six ground terminal divide into two ground terminal and are a set of three groups, and each group ground terminal is located between two adjacent signal terminal respectively, a plurality of cables be respectively with four cables that four signal terminal correspond.