CN110416829B

CN110416829B - Electrical connector

Info

Publication number: CN110416829B
Application number: CN201910715181.9A
Authority: CN
Inventors: 蔡伦; 隆权; 秦大争
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-12-22
Anticipated expiration: 2039-08-05
Also published as: CN110416829A

Abstract

The invention discloses an electric connector, which comprises an insulating body and a plurality of terminals, wherein the insulating body comprises a base part and a tongue plate, the tongue plate is provided with an upper surface and a lower surface, the terminals comprise at least two first grounding terminals arranged on the upper surface and at least two second grounding terminals arranged on the lower surface, the first grounding terminals comprise first grounding contact parts exposed on the upper surface, the front ends of the first grounding contact parts extend forwards to form first connecting parts positioned in the tongue plate, the second grounding terminals comprise second grounding contact parts exposed on the lower surface, the front ends of the second grounding contact parts extend forwards to form second connecting parts positioned in the tongue plate, the first connecting parts are integrally formed with first short circuit pieces, the second connecting parts are integrally formed with second short circuit pieces, the first short circuit pieces and the second short circuit pieces are embedded in the tongue plate, the first short circuit pieces are overlapped with the second short circuit pieces, the invention can improve the shielding effect of the electric connector.

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 with a good shielding effect.

[ background of the invention ]

An existing common electrical connector structure generally includes an upper insulating block, an upper row of terminals injection-molded with the upper insulating block, a lower insulating block, and a lower row of terminals injection-molded with the lower insulating block, where the upper row of terminals includes a plurality of first ground terminals and a plurality of first differential signal terminals, and the lower row of terminals includes a plurality of second ground terminals and a plurality of second differential signal terminals, and when the upper insulating block is injection-molded with the upper row of terminals and the lower row of terminals are injection-molded with the lower insulating block and the lower row of terminals, due to injection pressure, the first ground terminals and the second ground terminals are prone to be deflected, so that the distance from the first ground terminals to the first differential signal terminals on both sides in the transverse direction is difficult to be kept constant, and the distance from the second ground terminals to the second differential signal terminals on both sides in the transverse direction is difficult to be kept constant, so that the first ground terminals have a poor shielding effect on the first differential signal terminals on both sides, the second ground terminal is poor to the shielding effect of the second differential signal terminal of both sides to reduce the transmission rate of first differential signal terminal and second differential signal terminal, because a plurality of first ground terminals and a plurality of second ground terminal separate each other and set up, make between a plurality of first ground terminals and between a plurality of second ground terminals and have the potential difference between first ground terminal and the second ground terminal, produce the resonance problem easily and lead to the interference killing feature poor, thereby reduce the shielding effect of electric connector.

Therefore, there is a need for a new electrical connector to overcome the above problems.

[ summary of the invention ]

In view of the problems encountered in the background art, an object of the present invention is to provide an electrical connector that can ensure a stable electrical connection between a first ground terminal and a second ground terminal, and the first ground terminal and the second ground terminal do not shift to achieve a good shielding effect.

In order to achieve the purpose, the invention adopts the following technical scheme: an electrical connector, comprising an insulative housing including a base and a tongue plate positioned in front of the base, the tongue plate having an upper surface and a lower surface; a plurality of terminals including at least two first ground terminals received in the base and arranged on the upper surface in the transverse direction, at least one first differential signal terminal pair located between the two first ground terminals, at least two second ground terminals received in the base and arranged on the lower surface in the transverse direction, and at least one second differential signal terminal pair located between the two second ground terminals, each of the first ground terminals including a first ground contact portion exposed on the upper surface, each of the second ground terminals including a second ground contact portion exposed on the lower surface, a first connection portion extending forward from a front end of each of the first ground contact portions being located in the tongue plate, and a second connection portion extending forward from a front end of each of the second ground contact portions being located in the tongue plate; the first short connecting piece is embedded in the tongue plate and integrally formed with the first connecting parts; the second short connecting piece is embedded in the tongue plate, the second short connecting piece and the second connecting parts are integrally formed, and the second short connecting piece is overlapped with the first short connecting piece.

Further, neither the first tab nor the second tab is exposed at the outside of the tongue plate.

Further, the first shorting tab and the second shorting tab are both located between the first ground contact and the second ground contact.

Further, the first short connecting piece and the second short connecting piece are both flat and parallel to the upper surface and the lower surface, and the plate surface of the first short connecting piece is in close contact with the plate surface of the second short connecting piece.

Further, the front edges of the plurality of first connecting portions and the rear edge of the first tab are integrally connected, and the front edges of the plurality of second connecting portions and the rear edge of the second tab are integrally connected.

Furthermore, each first connecting portion is bent forwards and downwards from the front end of the first grounding contact portion, extends and forms and enters the tongue plate, the plurality of first connecting portions are integrally connected with the same edge of the first short connecting piece, each second connecting portion is bent forwards and upwards from the front end of the second grounding contact portion, extends and forms and enters the tongue plate, and the plurality of second connecting portions are integrally connected with the same edge of the second short connecting piece.

Further, the first differential signal terminal pair includes two first differential signal terminals, each of the first differential signal terminals includes a first signal contact portion exposed on the upper surface, the length of the first signal contact portion is smaller than that of the first ground contact portion, the second differential signal terminal pair includes two second differential signal terminals, each of the second differential signal terminals includes a second signal contact portion exposed on the lower surface, the length of the second signal contact portion is smaller than that of the second ground contact portion, the first ground terminal and the second ground terminal are arranged in a staggered manner in the vertical direction, and the first short contact piece and the second short contact piece are located in front of the first signal contact portion and the second signal contact portion.

Further, the periphery of the insulating body is wrapped with a shielding shell, the insulating body accommodates a shielding sheet, the shielding sheet is located between the first grounding terminal and the second grounding terminal, the shielding sheet is located behind the first short splicing sheet and the second short splicing sheet, the shielding sheet is provided with a main body part which is flat, at least one side of the main body part extends outwards to form an extending part which is located on the outer side of the base part, and the extending part is abutted to the inner wall surface of the shielding shell.

Further, the main body portion is concavely provided with a plurality of through holes aligned with the plurality of first ground terminals and the plurality of second ground terminals.

Further, the first differential signal terminal pair and the second differential signal terminal pair each have two pairs, the first ground terminal has two pairs, the second ground terminal has three pairs, the two pairs of the first differential signal terminal pairs and the two pairs of the first ground terminals are alternately arranged on the upper surface along the transverse direction, the two pairs of the second differential signal terminal pairs and the three pairs of the second ground terminals are alternately arranged on the lower surface along the transverse direction, the insulating body accommodates a first insulating block and a second insulating block, the two pairs of the first ground terminal and the two pairs of the first differential signal terminal pairs and the shielding plate are injection-molded with the first insulating block, the three pairs of the second ground terminal and the two pairs of the second differential signal terminal pairs and the second insulating block are injection-molded, and the base portion and the tongue plate are collectively coated outside the first insulating block and the second insulating block, two sides of the tongue plate are respectively provided with a convex rib in a downward protruding mode, the first short circuit piece protrudes forwards out of the front end of the first insulating block, and the second short circuit piece protrudes forwards out of the front end of the second insulating block.

Furthermore, a shielding frame is sleeved on the periphery of the base part, the shielding frame is provided with an upper shielding plate fixed on the top surface of the base part and a lower shielding plate fixed on the bottom surface of the base part, the upper shielding plate bends downwards and extends to form at least one first elastic arm and at least one elastic butt joint of the first grounding terminal, the lower shielding plate bends upwards and extends to form at least one second elastic arm and at least one elastic butt joint of the second grounding terminal, and the upper shielding plate is convexly provided with at least one convex hull and is abutted to the inner wall surface of the shielding shell.

Further, the shielding frame still includes that two vertical connecting portion connect go up the shield plate with the both ends of shield plate down, two vertical connecting portion hug closely the both sides face of basal portion, two vertical connecting portion with go up the shield plate and shield plate integrated into one piece down.

Furthermore, the shielding shell is provided with a first side wall and a second side wall which are connected, the front end of the first side wall and the front end of the second side wall extend towards each other in an inclined mode to form a first fool-proof elastic arm and a second fool-proof elastic arm, and the extending portion is abutted to the inner wall surface of the first side wall or the inner wall surface of the second side wall.

Compared with the prior art, the invention has the following beneficial effects:

the first short connecting piece and the second short connecting piece are arranged to connect a plurality of first grounding terminals and a plurality of second grounding terminals in series, so that the potential difference between the plurality of first grounding terminals and the potential difference between the plurality of second grounding terminals and the potential difference between the first grounding terminals and the second grounding terminals are reduced, resonance is reduced better, the anti-interference capacity is improved, and the shielding effect of the electric connector is improved, meanwhile, the first short connecting piece and the second short connecting piece fix the plurality of first grounding terminals and the plurality of second grounding terminals together respectively, when the insulating body is injection molded on the plurality of first grounding terminals and the plurality of second grounding terminals, the injection molding machine clamps and positions the first short connecting piece and the second short connecting piece, and the plurality of first grounding terminals and the plurality of second grounding terminals are prevented from being deviated due to injection molding pressure, the distances from the first ground terminal to the first differential signal terminals on two sides are not changed, the distances from the second ground terminal to the second differential signal terminals on two sides are not changed, so that the characteristic impedances of the first differential signal terminal and the second differential signal terminal are favorably adjusted, the transmission rates of the first differential signal terminal and the second differential signal terminal are further improved, and in addition, the first short splicing sheet and the second short splicing sheet are both embedded in the tongue plate, so that the strength of the tongue plate is favorably increased.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of the electrical connector of the present invention;

FIG. 2 is a partially schematic assembled view of FIG. 1;

fig. 3 is a schematic view of the shield shell not mounted to the dielectric body;

FIG. 4 is a perspective assembly view of the electrical connector of the present invention;

FIG. 5 is a partially exploded view of the present invention;

FIG. 6 is a front view of FIG. 5;

3 FIG. 3 7 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 A 3- 3 A 3 of 3 FIG. 33 3; 3

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 9 is a cross-sectional view taken along the line C-C of FIG. 4;

fig. 10 is a sectional view taken along the direction D-D in fig. 4.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

[ detailed description ] embodiments

For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.

As shown in fig. 1, 4 and 9, the electrical connector 100 is a Display Port electrical connector 100 according to the present invention, the electrical connector 100 is a Display Port electrical connector for being mated with a Display Port plug (not shown), and the electrical connector 100 is for being soldered to a circuit board (not shown), in other embodiments, the electrical connector 100 may be an HDMI connector or a connector with other interface for being mated with an HDMI plug or a plug with other interface, the electrical connector 100 includes an insulating body 1, a plurality of terminals 4 and a shielding plate 5 accommodated in the insulating body 1, and a shielding shell 7 covering an outer side of the insulating body 1.

As shown in fig. 3, 7 and 8, the insulating body 1 includes a base 11 and a tongue plate 12 extending forward from the base 11, the tongue plate 12 has an upper surface 121 and a lower surface 122, two sides of the tongue plate 12 are respectively provided with a protruding rib 123 protruding downward, the two protruding ribs 123 are arranged in parallel and are perpendicular to the upper surface 121 and the lower surface 122, the protruding ribs 123 are arranged to enable a Display Port plug (not shown) to be inserted into the tongue plate 12, the base 11 extends forward from one side of the tongue plate 12 to form a long fool-proof column 111, the fool-proof column 111 is used for guiding and positioning to prevent from being inserted, the insulating body 1 accommodates a first insulating block 2 and a second insulating block 3 located below the first insulating block 2, and the first insulating block 2 and the second insulating block 3 are stacked and fixed up and down.

As shown in fig. 1, 2 and 3, the plurality of terminals 4 includes at least two first ground terminals 41 arranged on the upper surface 121 along the transverse direction and at least one first differential signal terminal pair located between the two first ground terminals 41, in this embodiment, there are two first ground terminals 41, there are two first differential signal terminal pairs, each first differential signal terminal pair includes two first differential signal terminals 42, two first differential signal terminal pairs and two first ground terminals 41 are alternately arranged on the upper surface 121 along the transverse direction, the plurality of terminals 4 further includes at least two second ground terminals 43 arranged on the lower surface 122 along the transverse direction and at least one second differential signal terminal pair located between the two second ground terminals 43, in this embodiment, there are three second ground terminals 43, two pairs of the second differential signal terminals, each pair of the second differential signal terminals including two second differential signal terminals 44, two pairs of the second differential signal terminals and three second ground terminals 43 alternately arranged on the lower surface 122 in the transverse direction, the first ground terminal 41 and the second ground terminal 43 are offset in the vertical direction, the first differential signal terminals 42 and the second differential signal terminals 44 are disposed in a vertically offset manner (not shown), two first ground terminals 41 and two pairs of first differential signal terminal pairs and the shield plate 5 are injection-molded with the first insulating block 2, three second ground terminals 43 and two pairs of second differential signal terminal pairs are injection-molded with the second insulating block 3, the base 11 and the tongue plate 12 are coated outside the first insulating block 2 and the second insulating block 3 together by injection molding.

As shown in fig. 3, 7 and 8, each of the first ground terminals 41 and each of the first differential signal terminals 42 includes a first fixing portion 412 fixed to the rear end of the first insulating block 2 and a first soldering portion 413 extending from the first fixing portion 412 backward to the first insulating block 2, each of the first ground terminals 41 further includes a first ground contact portion 411 extending forward from the first fixing portion 412 of the first ground terminal 41 and a first connecting portion 4111 extending forward from the front end of the first ground contact portion 411 into the tongue portion 12, the front end of the first ground contact portion 411 is located on the upper surface 121, the rear end of the first ground contact portion 411 is located on the top surface of the front end of the first insulating block 2, each of the first differential signal terminals 42 further includes a first signal contact portion 421 extending forward from the first fixing portion 412 of the first differential signal terminal 42, the front end of the first signal contact 421 is located on the upper surface 121, the rear end of the first signal contact 421 is located on the top surface of the front end of the first insulating block 2, and the length of the first signal contact 421 is smaller than that of the first ground contact 411.

As shown in fig. 1, 7 and 8, each of the second ground terminals 43 and each of the second differential signal terminals 44 includes a second fixed portion 432 fixed to the rear end of the second insulating block 3 and a second soldering portion 433 extending from the second fixed portion 432 to the rear of the second insulating block 3, each of the second ground terminals 43 further includes a second ground contact portion 431 extending from the second fixed portion 432 of the second ground terminal 43 forward and a second connection portion 4311 extending from the front end of the second ground contact portion 431 forward into the tongue portion 12, the front end of the second ground contact portion 431 is located on the lower surface 122, the rear end of the second ground contact portion 431 is located on the bottom surface of the front end of the second insulating block 3, each of the second differential signal terminals 44 further includes a second signal contact portion 441 extending from the second fixed portion 432 of the second differential signal terminal 44 forward, the front end of the second signal contact 441 is located on the lower surface 122, the rear end of the second signal contact 441 is located on the bottom surface of the front end of the second insulating block 3, and the length of the second signal contact 441 is smaller than the length of the second ground contact 431.

As shown in fig. 5, 7 and 8, a first shorting tab 45 and a second shorting tab 46 are embedded in the tongue plate 12, two first connecting portions 4111 are integrally formed with the first shorting tab 45, three second connecting portions 4311 are integrally formed with the second shorting tab 46, the first shorting tab 45 and the second shorting tab 46 are overlapped, the first shorting tab 45 and the second shorting tab 46 are arranged to connect two first ground terminals 41 and three second ground terminals 43 in series, so as to eliminate the potential difference between a plurality of first ground terminals 41 and between a plurality of second ground terminals 43 and the potential difference between the first ground terminal 41 and the second ground terminal 43, so as to better reduce resonance and improve interference resistance, and further improve shielding effect of the electrical connector 100, the first shorting tab 45 protrudes forward from the front end of the first insulating block 2, the second shorting tab 46 protrudes forward from the front end of the second insulating block 3, when the first insulating block 2 is injection molded on two first ground terminals 41 and the second insulating block 3 is injection molded on three second ground terminals 43, the injection molding machine clamps and positions the first shorting tab 45 and the second shorting tab 46, prevents the plurality of first ground terminals 41 and the plurality of second ground terminals 43 from deflecting due to the injection pressure, so that the distance from the first ground terminal 41 to the first differential signal terminals 42 on both sides does not change, the distance from the second ground terminal 43 to the second differential signal terminals 44 on both sides does not change, which is beneficial to adjusting the characteristic impedance of the first differential signal terminals 42 and the second differential signal terminals 44, and further improves the transmission rate of the first differential signal terminals 42 and the second differential signal terminals 44, in addition, the first tab 45 and the second tab 46 are embedded in the tongue plate 12, increasing the strength of the tongue plate 12.

As shown in fig. 3, neither the first tab 45 nor the second tab 46 is exposed outside the tongue plate 12, which is advantageous for increasing the strength of the tongue plate 12.

As shown in fig. 5, 6 and 7, the first short connecting piece 45 and the second short connecting piece 46 are both flat and parallel to the upper surface 121 and the lower surface 122, so as to facilitate positioning and molding the tongue plate 12, and the plate surface of the first short connecting piece 45 is in close contact with the plate surface of the second short connecting piece 46, so that the contact area between the first short connecting piece 45 and the second short connecting piece 46 is large, and the contact is more stable.

As shown in fig. 6, 7 and 8, the first shorting tab 45 and the second shorting tab 46 are both located between the first ground contact 411 and the second ground contact 431, so that the thickness of the tongue plate 12 is ensured to be thin, the first shorting tab 45 and the second shorting tab 46 can be better embedded in the tongue plate 12, and the distances from the first shorting tab 45 and the second shorting tab 46 to the first differential signal terminal 42 and the second differential signal terminal 44 can be considered, so that the first shorting tab 45 and the second shorting tab 46 can achieve better shielding effect.

As shown in fig. 1 and 5, the first shorting tab 45 and the second shorting tab 46 are located in front of the first signal contact 421 and the second signal contact 441, and the first shorting tab 45 and the second shorting tab 46 are spaced apart from the first signal contact 421 and the second signal contact 441, so as to avoid the first shorting tab 45 and the second shorting tab 46 contacting the first signal contact 421 and the second signal contact 441 to cause signal short circuit.

As shown in fig. 7 and 8, each of the first connecting portions 4111 is bent forward and downward from the front end of the first ground contact portion 411 and extends into the tongue portion 12, a plurality of the first connecting portions 4111 are integrally connected to the same edge of the first short connecting piece 45, each of the second connecting portions 4311 is bent forward and upward from the front end of the second ground contact portion 431 and extends into the tongue portion 12, a plurality of the second connecting portions 4311 are integrally connected to the same edge of the second short connecting piece 46, the first connecting portions 4111 and the second connecting portions 4311 are located in the tongue portion 12, so that the first connecting portions 4111 and the first short connecting pieces 45 are integrally formed, the second connecting portions 4311 and the second short connecting pieces 46 are integrally formed, and the first short connecting pieces 45 and the second short connecting pieces 46 are located in the middle region inside the tongue portion 12 as much as possible, the thickness of the tongue plate 12 is prevented from being increased by burying the first tab 45 and the second tab 46 inside the tongue plate 12. In this embodiment, a plurality of the first connecting portions 4111 are integrally connected to the rear edge of the first shorting tab 45, a plurality of the second connecting portions 4311 are integrally connected to the rear edge of the second shorting tab 46, in other embodiments, a plurality of the first connecting portions 4111 may be integrally connected to the front edge, the left edge, or the right edge of the first shorting tab 45, and a plurality of the second connecting portions 4311 may be integrally connected to the front edge, the left edge, or the right edge of the second shorting tab 46.

As shown in fig. 5 and 6, the front edges of the plurality of first connecting portions 4111 and the rear edge of the first shorting tab 45 are integrally connected, and the front edges of the plurality of second connecting portions 4311 and the rear edge of the second shorting tab 46 are integrally connected, so that the first ground terminal 41 and the first shorting tab 45 are integrally formed, the second ground terminal 43 and the second shorting tab 46 are integrally formed, the process is simplified, and the manufacturing cost is saved.

As shown in fig. 5 and 9, the shielding plate 5 is located between the first ground terminal 41 and the second ground terminal 43, so as to reduce signal interference between the first differential signal terminal 42 and the second differential signal terminal 44, the shielding plate 5 is located behind the first short contact piece 45 and the second short contact piece 46, the shielding plate 5 has a main body 51 in a flat plate shape, two sides of the main body 51 are respectively extended outward to have an extension portion 511 located outside the base 11, both the extension portions 511 are abutted against an inner wall surface of the shielding case 7, so as to improve a grounding effect, the shielding plate 5 and the first short contact piece 45 and the second short contact piece 46 are provided, so as to shield multiple surfaces of the first differential signal terminal 42 and the second differential signal terminal 44, so as to improve a shielding effect, the main body 51 is provided with a plurality of concave through holes 512 and a plurality of first ground terminals 41 and a plurality of second ground terminals 41 and a plurality of ground terminals 46 The alignment of the sub-conductors 43 is beneficial to adjusting the impedance and improving the shielding effect.

As shown in fig. 4, 9 and 10, the shielding case 7 has a plurality of sidewalls, the sidewalls are wrapped around the insulating body 1 to form a docking space for inserting a Display Port plug, in this embodiment, the side walls include a first side wall 71 and a second side wall 72 that are connected, in the docking direction, the first side wall 71 is located on the left side of the tongue plate 12, the second side wall 72 is located on the lower side of the tongue plate 12, the front end of the first side wall 71 and the front end of the second side wall 72 extend obliquely toward each other to form a first fool-proof elastic arm 711 and a second fool-proof elastic arm 721, the first fool-proof arm 711 and the second fool-proof arm 721 prevent other unmatched plugs from being inserted to crash the terminals or prevent reverse insertion of the Display Port plug when the mating is just started, wherein one of the extensions 511 abuts against the inner wall surface of the first side wall 71.

As shown in fig. 2, 3 and 9, a shielding frame 6 is sleeved on the periphery of the base 11, the shielding frame 6 has an upper shielding plate 61 fixed on the top surface of the base 11 and a lower shielding plate 62 fixed on the bottom surface of the base 11, the upper shielding plate 61 is bent downward and extended with two first elastic arms 611 to elastically abut against the two first grounding terminals 41, and the lower shielding plate 62 is bent upward and extended with three second elastic arms 621 to elastically abut against the three second grounding terminals 43, so as to increase grounding paths, thereby improving shielding effect.

The shielding frame 6 further includes two vertical connecting portions 63 connecting two ends of the upper shielding plate 61 and the lower shielding plate 62, the two vertical connecting portions 63 are tightly attached to two side surfaces of the base 11, the two vertical connecting portions 63 are integrally formed with the upper shielding plate 61 and the lower shielding plate 62, the shielding frame 6 is integrally formed, and only one time of installation is needed, so as to simplify the assembly process, the upper shielding plate 61 and the lower shielding plate 62 are connected into a whole through the two vertical connecting portions 63, so that the upper shielding plate 61 and the lower shielding plate 62 form a closed loop, further reduce the potential difference between the first grounding terminal 41 and the second grounding terminal 43, improve the anti-interference capability and the high-frequency performance of the electrical connector 100, and two ends of the rear edge of the upper shielding plate 61 are respectively extended backward to form a horizontal connecting portion 612, the end of each horizontal connecting portion 612 protrudes upward to form a convex hull 6121 to abut against the inner wall surface of the shielding shell 7, so as to ensure grounding, and further enhance the shielding effect of the electrical connector 100.

The assembly process of the electrical connector 100 of the present invention is as follows:

two of the first ground terminals 41 and the first shorting tabs 45 are integrally formed by a same material tape, an injection molding machine clamps and positions the first shorting tabs 45, then the first insulating block 2 is injection molded with two of the first ground terminals 41 and two pairs of the first differential signal terminals and the shielding sheet 5, the first shorting tabs 45 protrude out of the front end of the first insulating block 2, three of the second ground terminals 43 and the second shorting tabs 46 are integrally formed by a same material tape, the injection molding machine clamps and positions the second shorting tabs 46, then the second insulating block 3 is injection molded with three of the second ground terminals 43 and two pairs of the second differential signal terminals, the second shorting tabs 46 protrude out of the front end of the second insulating block 3, the first insulating block 2 and the second insulating block 3 are stacked and fixed up and down, and the plate surface of the first shorting tabs 45 is in contact with the plate surface of the second shorting tabs 46, and finally, injection molding is carried out on the outer sides of the first insulating block 2 and the second insulating block 3 to form the base 11 and the tongue plate 12, the shielding frame 6 is sleeved on the base 11, the shielding shell 7 is sleeved on the base 11 from the front end of the base 11 from the front to the back, and the convex hull 6121 is in contact with the inner wall surface of the shielding shell 7.

In summary, the electrical connector 100 of the present invention has the following beneficial effects:

(1) the front end of each first ground contact 411 extends forward to form the first connection portion 4111 and is located in the tongue plate 12, the front end of each second ground contact 431 extends forward to form the second connection portion 4311 and is located in the tongue plate 12, the first shorting tab 45 and the second shorting tab 46 are embedded in the tongue plate 12, the plurality of first connection portions 4111 and the first shorting tab 45 are integrally formed, the plurality of second connection portions 4311 and the second shorting tab 46 are integrally formed, the first shorting tab 45 and the second shorting tab 46 are arranged to connect two first ground terminals 41 and three second ground terminals 43 in series, so as to reduce the potential difference between the first ground terminals 41 and the second ground terminals 43, better reduce resonance and improve anti-interference capability, and further improve the shielding effect of the electrical connector 100, when the first insulating block 2 is injection-molded on two first ground terminals 41 and the second insulating block 3 is injection-molded on three second ground terminals 43, the injection-molding machine clamps and positions the first shorting tab 45 and the second shorting tab 46, so as to prevent the first ground terminals 41 and the second ground terminals 43 from deflecting due to the injection pressure, so that the distance from the first ground terminal 41 to the first differential signal terminals 42 on both sides does not change, the distance from the second ground terminal 43 to the first differential signal terminals 42 on both sides does not change, which is beneficial for adjusting the characteristic impedance of the first differential signal terminals 42 and the second differential signal terminals 44, further improving the transmission rate of the first differential signal terminals 42 and the second differential signal terminals 44, and additionally embedding the first shorting tab 45 and the second shorting tab 46 in the tongue 12, increasing the strength of the tongue plate 12.

(2) The first short connecting piece 45 and the second short connecting piece 46 are both flat and parallel to the upper surface 121 and the lower surface 122, so that the positioning is convenient, and the forming of the tongue plate 12 is convenient, the plate surface of the first short connecting piece 45 is in close contact with the plate surface of the second short connecting piece 46, so that the contact area between the first short connecting piece 45 and the second short connecting piece 46 is large, and the contact is more stable.

(3) The first shorting tab 45 and the second shorting tab 46 are located between the first ground contact 411 and the second ground contact 431, so that the thickness of the tongue plate 12 is ensured to be thin, the first shorting tab 45 and the second shorting tab 46 can be better embedded in the tongue plate 12, and the distances from the first shorting tab 45 and the second shorting tab 46 to the first differential signal terminal 42 and the second differential signal terminal 44 can be considered, so that the first shorting tab 45 and the second shorting tab 46 can achieve a better shielding effect.

(4) Each of the first connecting portions 4111 is bent and extended forward and downward from the front end of the first ground contact portion 411 and into the tongue plate 12, a plurality of the first connecting portions 4111 are integrally connected to the same edge of the first shorting tab 45, each of the second connecting portions 4311 is bent and extended forward and upward from the front end of the second ground contact portion 431 and into the tongue plate 12, a plurality of the second connecting portions 4311 are integrally connected to the same edge of the second shorting tab 46, the first connecting portions 4111 and the second connecting portions 4311 are located in the tongue plate 12, so that the first connecting portions 4111 and the first shorting tab 45 are integrally formed, the second connecting portions 4311 and the second shorting tab 46 are integrally formed, and the first shorting tab 45 and the second shorting tab 46 are located in the middle area inside the tongue plate 12 as much as possible, the thickness of the tongue plate 12 is prevented from being increased by burying the first tab 45 and the second tab 46 inside the tongue plate 12.

(5) The shielding plate 5 is located between the first ground terminal 41 and the second ground terminal 43, so that signal interference between the first differential signal terminal 42 and the second differential signal terminal 44 can be reduced, the shielding plate 5 is located behind the first short contact piece 45 and the second short contact piece 46, the shielding plate 5 is provided with the main body part 51 which is a flat plate, two sides of the main body part 51 are respectively extended outwards to form the extension parts 511 protruding out of the base part 11, and the two extension parts 511 are abutted against the inner wall surface of the shielding shell 7, so that a grounding effect is improved. The provision of the shield strip 5, the first shorting strip 45, and the second shorting strip 46 can shield a plurality of surfaces of the first differential signal terminal 42 and the second differential signal terminal 44, thereby improving a shielding effect.

(6) The shielding frame 6 has the upper shielding plate 61 fixed to the top surface of the base 11 and the lower shielding plate 62 fixed to the bottom surface of the base 11, the upper shielding plate 61 is bent downward and extended with two first elastic arms 611 elastically abutted to the two first grounding terminals 41, and the lower shielding plate 62 is bent upward and extended with three second elastic arms 621 elastically abutted to the three second grounding terminals 43, so as to increase grounding paths, thereby improving shielding effect.

(7) The shielding frame 6 further comprises two vertical connecting portions 63 connected to the upper shielding plate 61 and the two ends of the lower shielding plate 62, two vertical connecting portions 63 are tightly attached to the two side faces of the base portion 11, two vertical connecting portions 63 are integrally formed with the upper shielding plate 61 and the lower shielding plate 62, the shielding frame 6 is integrally formed, and only one-time installation is needed, so that the assembling process is simplified. The upper shielding plate 61 and the lower shielding plate 62 are connected into a whole through the two vertical connecting portions 63, so that the upper shielding plate 61 and the lower shielding plate 62 form a closed loop, the potential difference between the first grounding terminal 41 and the second grounding terminal 43 is further reduced, the interference resistance is improved, and the high-frequency performance of the electrical connector 100 is improved.

(8) The shielding case 7 has the first side wall 71 and the second side wall 72 connected to each other, the front end of the first side wall 71 and the front end of the second side wall 72 extend obliquely toward each other to form the first fool-proof elastic arm 711 and the second fool-proof elastic arm 721, the first fool-proof elastic arm 711 and the second fool-proof elastic arm 721 are arranged to prevent other unmatched plugs from being inserted to crash the terminal or prevent the Display Port plug from being inserted backwards when the mating is just started, one of the extending portions 511 abuts against the inner wall surface of the first side wall 71, and the grounding effect is improved.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. An electrical connector, comprising:

the insulating body comprises a base and a tongue plate positioned in front of the base, wherein the tongue plate is provided with an upper surface and a lower surface;

a plurality of terminals including at least two first ground terminals received in the base and arranged on the upper surface in the transverse direction, at least one first differential signal terminal pair located between the two first ground terminals, at least two second ground terminals received in the base and arranged on the lower surface in the transverse direction, and at least one second differential signal terminal pair located between the two second ground terminals, each of the first ground terminals including a first ground contact portion exposed on the upper surface, each of the second ground terminals including a second ground contact portion exposed on the lower surface, a first connection portion extending forward from a front end of each of the first ground contact portions being located in the tongue plate, and a second connection portion extending forward from a front end of each of the second ground contact portions being located in the tongue plate;

the first short connecting piece is embedded in the tongue plate and integrally formed with the first connecting parts;

the second short connecting piece is embedded in the tongue plate, the second short connecting piece and the second connecting parts are integrally formed, and the second short connecting piece is overlapped with the first short connecting piece.

2. The electrical connector of claim 1, wherein: the first short connecting piece and the second short connecting piece are not exposed at the outer side of the tongue plate.

3. The electrical connector of claim 1, wherein: the first shorting tab and the second shorting tab are both located between a plane in which the first ground contact is located and a plane in which the second ground contact is located.

4. The electrical connector of claim 1, wherein: the first short connecting piece and the second short connecting piece are both flat and parallel to the upper surface and the lower surface, and the plate surface of the first short connecting piece is tightly contacted with the plate surface of the second short connecting piece.

5. The electrical connector of claim 1, wherein: the front edges of the plurality of first connecting portions and the rear edge of the first tab are integrally connected, and the front edges of the plurality of second connecting portions and the rear edge of the second tab are integrally connected.

6. The electrical connector of claim 1, wherein: each first connecting portion is bent forwards and downwards from the front end of the first grounding contact portion, extends to form and enters the tongue plate, the first connecting portions are integrally connected with the same edge of the first short connecting piece, each second connecting portion is bent forwards and upwards from the front end of the second grounding contact portion, extends to form and enters the tongue plate, and the second connecting portions are integrally connected with the same edge of the second short connecting piece.

7. The electrical connector of claim 1, wherein: the first differential signal terminal pair comprises two first differential signal terminals, each first differential signal terminal comprises a first signal contact part exposed on the upper surface, the length of the first signal contact part is smaller than that of the first ground contact part, the second differential signal terminal pair comprises two second differential signal terminals, each second differential signal terminal comprises a second signal contact part exposed on the lower surface, the length of the second signal contact part is smaller than that of the second ground contact part, the first ground terminal and the second ground terminal are arranged in a staggered mode in the vertical direction, and the first short contact piece and the second short contact piece are located in front of the first signal contact part and the second signal contact part.

8. The electrical connector of claim 1, wherein: the insulating body is wrapped with a shielding shell in the periphery, a shielding sheet is accommodated in the insulating body, the shielding sheet is located between the first grounding terminal and the second grounding terminal, the shielding sheet is located behind the first short splicing sheet and the second short splicing sheet, the shielding sheet is provided with a main body part which is flat, at least one side of the main body part extends outwards to form an extending part protruding out of the outer side of the base part, and the extending part is abutted to the inner wall surface of the shielding shell.

9. The electrical connector of claim 8, wherein: the main body portion is concavely provided with a plurality of through holes aligned with the plurality of first ground terminals and the plurality of second ground terminals.

10. The electrical connector of claim 8, wherein: the first differential signal terminal pair and the second differential signal terminal pair each have two pairs, the first ground terminal has two pairs, the second ground terminal has three pairs, the two pairs of the first differential signal terminal pairs and the two pairs of the first ground terminals are alternately arranged on the upper surface along the transverse direction, the two pairs of the second differential signal terminal pairs and the three pairs of the second ground terminals are alternately arranged on the lower surface along the transverse direction, the insulating body accommodates a first insulating block and a second insulating block, the two pairs of the first ground terminal and the two pairs of the first differential signal terminal pairs and the shielding plate are injection-molded with the first insulating block, the three second ground terminal and the two pairs of the second differential signal terminal pairs and the second insulating block are injection-molded, and the base portion and the tongue plate are collectively coated outside the first insulating block and the second insulating block, two sides of the tongue plate are respectively provided with a convex rib in a downward protruding mode, the first short circuit piece protrudes forwards out of the front end of the first insulating block, and the second short circuit piece protrudes forwards out of the front end of the second insulating block.

11. The electrical connector of claim 8, wherein: the shielding frame is sleeved on the periphery of the base part and provided with an upper shielding plate fixed on the top surface of the base part and a lower shielding plate fixed on the bottom surface of the base part, the upper shielding plate bends downwards and extends to form at least one first elastic arm and at least one elastic butt joint of the first grounding terminal, the lower shielding plate bends upwards and extends to form at least one second elastic arm and at least one elastic butt joint of the second grounding terminal, and the upper shielding plate is convexly provided with at least one convex hull and is abutted to the inner wall surface of the shielding shell.

12. The electrical connector of claim 11, wherein: the shielding frame further comprises two vertical connecting parts which are connected with the upper shielding plate and the two ends of the lower shielding plate, the two vertical connecting parts are tightly attached to the two side faces of the base part, and the two vertical connecting parts are integrally formed with the upper shielding plate and the lower shielding plate.

13. The electrical connector of claim 8, wherein: the shielding shell is provided with a first side wall and a second side wall which are connected, the front end of the first side wall and the front end of the second side wall extend towards each other in an inclined mode to form a first fool-proof elastic arm and a second fool-proof elastic arm, and the extending portion is abutted to the inner wall face of the first side wall or the inner wall face of the second side wall.