CN113612081B

CN113612081B - Sub-connector and chip thereof

Info

Publication number: CN113612081B
Application number: CN202110642512.8A
Authority: CN
Inventors: 张爽; 马陆飞; 侯少杰; 王占云; 吴泽钿; 周国奇; 刘成荫
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2021-02-09
Filing date: 2021-06-09
Publication date: 2023-04-18
Anticipated expiration: 2041-06-09
Also published as: CN113612081A; CN216145874U; CN113258382B; CN113690695A; CN113690695B; CN113451850A; CN215299723U; CN113497397B; CN215299724U; WO2022171008A1; CN113612082B; CN113437594B; CN113451850B; CN113471777A; CN113471776B; CN113497397A; CN113437594A; CN215645331U; CN113437595A; CN113471776A

Abstract

The invention discloses a sub-connector which comprises a plurality of wafers arranged in parallel, wherein each wafer comprises an insulator and shielding plates arranged on two sides of the insulator, differential pairs are arranged in the insulator, the shielding plates on the two sides are in contact conduction through shielding plate connecting conductors, each shielding plate comprises a main body part and a shielding plate extending area formed by the main body part extending towards the direction of a contact end, two sides of each shielding plate connecting conductor are in corresponding contact conduction with the shielding plate extending areas on the two sides respectively, and the shielding plate connecting conductors are positioned between the adjacent differential pairs, so that a full-shielding surrounding structure is formed around the contact end of any differential pair. By means of the technical scheme, the shielding plates at two sides are in contact conduction in the main body part and/or the mating area by utilizing the shielding plate connecting conductors, so that crosstalk between adjacent differential pairs is reduced, and the sub-connector is facilitated to realize high-speed performance.

Description

Sub-connector and chip thereof

Technical Field

The invention relates to a high-speed sub-connector and a wafer thereof.

Background

In the prior art, a high-speed orthogonal connector includes a plurality of wafers (wafers) mounted in parallel, each wafer (wafer) includes an insulator and a shielding plate disposed on one side of the insulator, differential pairs and ground terminals are mounted in the insulator, the differential pairs and the ground terminals are mounted on one side of the insulator through the shielding plates, and all the ground terminals in the same wafer are correspondingly connected, so that all the ground terminals are grounded.

Disclosure of Invention

The invention aims to provide a sub-connector which comprises shielding plates arranged on two sides of a wafer, and realizes the contact conduction of main body parts and/or mating areas of the shielding plates on the two sides by utilizing a shielding plate connecting conductor, thereby fundamentally solving the technical problems.

The purpose of the invention is realized by adopting the following technical scheme. The sub-connector provided by the invention comprises a plurality of wafers which are arranged in parallel, each wafer comprises an insulator and shielding plates arranged on two sides of the insulator, a differential pair is arranged in the insulator, and the shielding plates on the two sides are connected with a conductor through the shielding plates to realize contact conduction.

The beneficial effects are that: through the shielding plates which are electrically communicated with each other are arranged on the two sides of the wafer, a conventional grounding terminal does not need to be arranged in the insulator of the wafer, so that the bending design of the grounding terminal is avoided, and the production and manufacturing cost and the size of the connector are reduced.

Further, the shield plate includes the main part and by the shield plate extension area that the main part extends to the contact end direction of difference pair, thereby shield plate connecting conductor's both sides correspond the contact with the shield plate extension area of both sides respectively and switch on two shield plate electric properties on with same wafer, and shield plate connecting conductor is located between the adjacent difference pair to contact end at arbitrary difference pair forms all around and shields the surrounding structure.

The beneficial effects are that: the shielding plates on the two sides of the same wafer are mutually contacted and conducted in the matting area, so that a fully-enclosed shielding cavity is formed around the contact end of each differential pair, and crosstalk between adjacent differential pairs in the matting area is reduced.

Further, the shield plate connection conductor is mounted on the insulator, that is: the insulator is provided with a mounting groove at one end extending out of the contact end of the differential pair, the shielding plate connecting conductor is forcibly arranged in the mounting groove to realize positioning, and the two sides of the shielding plate connecting conductor are respectively welded with the extension areas of the shielding plates at the two sides in a corresponding mode so as to realize the fixation of the shielding plate connecting conductor.

The beneficial effects are that: during the installation, after the shield plate lock-joint of both sides was adorned on the insulator, carry out preliminary location with shield plate connecting conductor in the mode of adorning by force inserts the mounting groove of insulator, then with the help of the welding hole that both sides shield plate extension region department seted up, weld shield plate connecting conductor's lateral part and the shield plate extension region that corresponds the side to realize shield plate connecting conductor's further fixed.

Or the shielding plate connecting conductor is fixedly installed through the extending areas of the shielding plates at the two sides, namely, the side part of the shielding plate connecting conductor and the extending area of the shielding plate at the corresponding side are fixedly welded by virtue of the welding holes formed at the extending areas of the shielding plates at the two sides.

Further, the shield plate connection conductor is a sheet structure.

The beneficial effects are that: the occupied space of the shield plate connecting conductor is reduced, the structure of the sub-connector is more compact, and the size is reduced.

Furthermore, the shielding plate connecting conductor comprises a sub-shielding plate connecting conductor and elastic pieces fixed on two sides of the sub-shielding plate connecting conductor, and the elastic pieces are used for being in elastic contact with shielding pieces in the adapter connector so as to realize shielding conduction between the sub-connector and the adapter connector in the plugging area.

The beneficial effects are that: besides being used for communicating the shielding plates on two sides, the shielding plate connecting conductor can also be elastically attached to a shielding piece in the adapter connector in an inserting state, so that the structure of the sub-connector and the structure of the adapter connector in the mating area, which are responsible for shielding, are mutually communicated. Wherein the elastic sheet is a fifth elastic sheet.

Furthermore, the main body part of the shielding plate on one side is injected with conductive plastic, the conductive plastic extends out of the cylindrical convex hull, and the cylindrical convex hull penetrates through the insulator and then contacts with the main body part of the shielding plate on the other side.

The beneficial effects are that: the double-shielding contact between the extension areas of the shielding plates on the two sides and between the main body parts is achieved, and the shielding effect is further improved.

The invention also provides a wafer, which is the wafer in any one of the sub-connectors, and the wafer is a bent male wafer or a bent female wafer.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic diagram of a high-speed orthogonal connector according to the present invention in an unplugged state.

Fig. 2 is a schematic diagram of a high-speed orthogonal connector according to the present invention in a plugged state.

Fig. 3 is a partially enlarged schematic view of fig. 2.

Fig. 4 is a schematic diagram of a bent male signal terminal in a narrow side coupling form.

Fig. 5 is a schematic diagram of a bent female signal terminal in broadside coupling form.

Fig. 6 is a schematic diagram of terminal plugging.

Fig. 7 is a partially enlarged schematic view of fig. 6.

Fig. 8A-8E are schematic views of contact ends of bent female signal terminals.

Fig. 9 is an exploded view of a bent female connector.

Fig. 10A is an exploded view of a bent mother wafer.

FIG. 10B is a schematic view of the crimped end of the bent mother wafer.

Fig. 10C is an assembled view of fig. 10B.

Fig. 11A to 11H are schematic views of crimping terminals of the bent female shield plate.

Fig. 12A is a schematic view of the assembly of the fisheye plate to the curved mother wafer shown in fig. 11G.

Fig. 12B is a partially enlarged view of the fisheye plate of fig. 12A.

Fig. 13A to 13D are schematic diagrams of the transition of the bent female signal terminal from the broadside coupling form to the narrow-side coupling form.

Fig. 14A-14B are bottom schematic views of a bent female insulator at the crimp end.

Fig. 15A to 15D are schematic views of a first embodiment of the bent female conductive buckle.

Fig. 15E to 15G are schematic views of a second embodiment of the bent female conductive buckle plate.

Fig. 15H to 15J are schematic views of a third embodiment of the bent female conductive buckle.

Fig. 16A-16C are schematic views of the assembly of a bent female contact shield with a shield support post.

Fig. 16D to 16E are schematic diagrams of the insertion and engagement surfaces of the curved female housing.

Fig. 16F to 16G are schematic views of two forms of bent female contact shields.

Figure 17A is an assembly view of the bent female contact shield, the bent female conductive pad, and the bent female wafer.

Fig. 17B is a schematic illustration of a bent female conductive pad.

Fig. 17C-17E are schematic views of the assembly of bent female conductive shims to the contact ends of bent female wafers.

Fig. 17F-17G are schematic views of the assembly of a bent female contact shield at the contact end of a bent female wafer.

Figures 18A through 18C are assembled views of the bent male wafer contact end.

Fig. 19A to 19C are assembly views of the crimped end of the bent male die.

FIGS. 20A-20C are schematic views of three embodiments of the bent male conductive clip.

Fig. 21A-21C are schematic views of contact ends of bent male signal terminals.

Fig. 22A to 22L are schematic views illustrating that the elastic sheet and the convex hull are disposed on the extending region of the shielding plate of the bent male shielding plate.

Fig. 23A to 23I are schematic views illustrating the other end of the bent female contact shield being provided with a convex hull or a spring.

Fig. 23J to 23K are schematic views when no convex hull or spring plate is provided at the end of the bent female contact shield.

Fig. 24A to 24B are schematic views of an embodiment of a shield plate connection conductor.

Fig. 25A to 35C are schematic views of embodiments of providing resilient pieces on the shield connection conductor.

Fig. 36 is a schematic view showing the assembly of the shield connecting conductor with the bent female shield.

Fig. 37A-37B are schematic views of a shield plate connection conductor in shielding contact with a bent female contact shield.

Fig. 38 is a schematic view of another embodiment of a bent male shield plate.

Detailed Description

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1, the high-speed orthogonal connector of the present invention includes two sub-connectors that are matched with each other, one of the sub-connectors defining the contact end of the signal terminal as a receiving cavity or the contact end serving as a receiving cavity is a bent female connector 10, and the other sub-connector defining the contact end of the signal terminal as a received shape and forming a pin shape is a bent male connector 20, wherein "bent" means that two end surfaces of the connector are bent at 90 °.

Referring to fig. 2, the curved female connector includes a plurality of curved female wafers 101 distributed in parallel, a curved female signal terminal 102 on the same curved female wafer has a contact end, a crimping end, and a terminal body connecting the contact end and the crimping end, and the terminal body and the contact end are in a broadside coupling form (as shown in fig. 5); the bent male connector comprises a plurality of bent male wafers 201 which are distributed in parallel, bent male signal terminals 202 on the same bent male wafer are provided with contact ends, crimping ends and wiring parts for connecting the contact ends and the crimping ends, the bent male signal terminals are in a narrow-side coupling form from the contact ends to the crimping ends (as shown in figure 4), and the effect of orthogonal connection is just achieved by means of the form of 'one wide side and one narrow side' of the contact ends, because the concept of 90-degree turning is embodied by 'wide-side coupling' and 'narrow-side coupling', the bent male connector and the bent female connector which are included in the high-speed orthogonal connector can be directly plugged without bending the contact ends of the signal terminals by 90 degrees, an orthogonal connection structure is naturally formed (the action process is defined as 'natural orthogonal'), and the technical problem that the contact ends of the signal terminals of one sub-connector in the existing orthogonal connector must be bent by 90 degrees is fundamentally solved, so that the defect caused by the bending process of the contact ends of the signal terminals is overcome. Of course, in other embodiments of the present invention, the contact end and the terminal body of the bent female signal terminal in the bent female connector may be in a narrow-side coupling form, and the contact end and the terminal body of the bent male signal terminal in the bent male connector may be in a wide-side coupling form.

Referring to fig. 3, 6 and 7, the male signal terminal 202 of the male connector is formed by cutting a metal strip, and the contact end 2021 thereof has a rough cut-out surface 20211 and a smooth non-cut-out surface 20212; the contact ends 1021 of the bent female signal terminals 102 of the bent female connector are configured as clamping ends having an upper jaw 10211 and a lower jaw 10212. If the cutting surface of the bent male signal terminal is clamped by the clamping end, as the cutting surface is rough, under the condition of repeated pulling and inserting friction, the cutting surface can generate worn debris, the debris can be attached to the contact end in the form of a metal wire, various accidental short circuits of the contact end can be caused, for example, the adjacent signal ends are overlapped, or the signal end and the grounding end are overlapped, the signal end loses the signal transmission effect, and a communication system using the orthogonal connector generates serious error codes, and when the bent male connector and the bent female connector are oppositely inserted, the upper clamping piece 10211 and the lower clamping piece 10212 are in pressing contact with the smooth non-cutting surface 20212, so that the worn debris can not be generated during pulling and inserting, and the short circuit phenomenon can be eliminated.

The contact end of the bent female signal terminal is formed by horizontally bending materials on the upper side and the lower side of two terminal bodies included in one signal differential pair respectively, for example, the materials are horizontally bent outwards, and the shape of the formed contact end is shown in fig. 7; or bending the material horizontally inwards to form a contact end shape as shown in figure 8A; or the material on the upper side and the lower side of one terminal body is horizontally bent outwards, and the material on the upper side and the lower side of the other terminal body in one differential pair is horizontally bent inwards. Furthermore, the contact end of the bent female signal terminal includes two auxiliary clamping portions 10213 oppositely distributed on the same side surface of the upper clamping piece and the lower clamping piece, for example, if one side surface of the upper clamping piece and the lower clamping piece is provided with an auxiliary clamping portion, the cross section of the contact end at the auxiliary clamping portion is U-shaped (as shown in fig. 8D and 8E); two side surfaces of the upper clamping piece and the lower clamping piece are respectively provided with an auxiliary clamping part, the corresponding cross section is O-shaped (as shown in figures 8B and 8C), the two auxiliary clamping parts are used for improving the strength of the contact end and are respectively contacted with the upper non-cutting surface and the lower non-cutting surface after being separated in a mutual insertion state, and the contact area of the bent male signal terminal and the bent female signal terminal is increased.

Referring to fig. 9 and fig. 10A to 10C, each curved female chip 101 includes two curved female insulators 1011 fixed as a whole and two curved female shielding plates located outside the insulators, the curved female signal terminals are mounted on the curved female insulators, and the crimping ends 1022 of the curved female signal terminals are in a narrow-side coupling form, that is, the arrangement direction of the signal differential pairs at the crimping ends of one chip is defined as a second direction, so that the two signal terminals forming the differential pairs in the curved female connector are distributed in a row at the crimping ends along the second direction. The bent female shielding plate is provided with a bent female folding piece extending out from the bottom of the bent female wafer crimping surface; the bent female tabs are also bent in the corresponding direction (as G) and together with the crimping ends of the signal terminals (as S) form a gssggsg pattern on the crimping surface. The beneficial effect of aforementioned design lies in: because on the crimping surface, each terminal forms a row of arranging (namely narrow edge arranging), and each terminal forms multiseriate arranging (namely broadside arranging) than each terminal, can reduce the total area of crimping surface, can save the wiring area of the corresponding printed board from this, save printed board space more, also correspondingly promoted the high density of connector and arranged promptly.

The bent female flap may be provided in the form of:

(1) Referring to fig. 11A and 11B, in the present embodiment, the bent female folding piece is formed by bending the portion of the bottom end surface of the bent female shielding plate twice, the end of the bent female folding piece is flush with the crimping end of the bent female signal terminal, the end of the bent female folding piece is provided with a terminating structure, the terminating structure is a fish eye structure, and the terminating structure and the folding piece together form the terminating terminal of the bent female shielding plate. A first bent female folding piece 10121 at the bottom of the first bent female shielding plate 1012 and a second bent female folding piece 10131 at the bottom of the second bent female shielding plate 1013 are distributed in a crossing manner on the crimping surface, and a differential pair is arranged between the adjacent first bent female folding piece 10121 and the second bent female folding piece 10131;

(2) Referring to fig. 11C and 11D, in the present embodiment, the bent female flap is formed by stamping a part of the edge body of the bottom of the bent female shielding plate, and two protrusions are disposed at intervals on the end of the bent female flap to form the terminating structure. The first curved female flaps 10121 at the bottom of the first curved female shielding plate 1012 and the second curved female flaps 10131 at the bottom of the second curved female shielding plate 1013 are distributed in a crossing manner on the crimping surface, and a differential pair is distributed between the adjacent first curved female flaps 10121 and the second curved female flaps 10131;

(3) Referring to fig. 11E and 11F, in the present embodiment, the bent female flaps are formed by folding the flap portions 10122 spaced apart from each other on the edge main body of the bottom of one shielding plate in the direction of the other shielding plate, after the flap portions 10122 are bent once, the first bent female flap 10121 and the second bent female flap 10131 are respectively orthogonal to the corresponding shielding plates, so that the two bent female flaps and the edge main body of the bottom of the two bent female shielding plates jointly form a bent female shielding cavity 1014 for receiving the crimping end of one differential pair. The bent female flaps also have an extension 10123 extending out of the shielding plate, the extension having a termination structure.

(4) Referring to fig. 11G and 11H, the bent female folding pieces in the present embodiment are plate-shaped, after being bent once, the first bent female folding piece 10121 at the bottom of the first bent female shielding plate and the second bent female folding piece 10131 at the bottom of the second bent female shielding plate are respectively orthogonal to the corresponding shielding plates, and the two bent female folding pieces and the edge main body at the bottom of the two bent female shielding plates jointly form a bent female shielding cavity 1014 for accommodating the crimping end of a differential pair; the end part of the bent female folding piece is provided with a clamping hook 1015, the side surface of the edge main body at the bottom of the bent female shielding plate connected with the bent female folding piece is provided with a clamping groove, the first bent female folding piece is buckled with the edge main body at the bottom of the second bent female shielding plate through the matching of the clamping hook and the clamping groove, and the second bent female folding piece is buckled with the edge main body at the bottom of the first bent female shielding plate.

On the basis of the embodiment shown in fig. 11E and fig. 11G, please refer to fig. 12A and fig. 12B, the curved female connector further includes a fisheye plate 103, the fisheye plate is provided with shielding cavity shielding holes 1031, inner walls of the shielding cavity shielding holes are provided with convex hulls 1032, and fisheyes 1033 protruding from the fisheye plate, after the fisheye plate is mounted on the crimping surface of the curved female wafer in a forced mounting manner, each shielding cavity 1014 passes through the corresponding shielding cavity shielding hole 1031, and the convex hulls 1032 contact with outer walls of the shielding cavities to achieve conduction of all curved female shielding plates in the curved female connector; the fish eye is used for penetrating through the grounding pin hole on the bent female conductive buckle plate.

The bent female signal terminals that make up a differential pair have transition regions 1020 between the terminal bodies and the crimp ends that enable the connection of the terminal bodies of two rows of signal terminals in the differential pair along a first direction and the crimp ends of one row along a second direction. The transition region 1020 includes an offset portion 10201 and a bending portion 10202, wherein the offset portion 10201 makes the crimping end shift to one side, the bending portion 10202 bends the crimping end, and the shifting directions of the offset portions of the two signal terminals forming a differential pair are opposite, and the bending directions of the bending portions are opposite.

In an embodiment of the present invention, the transition region 1020 may further include an extended portion 10203, the extended portion is used for connecting the offset portion 10201 and the bent portion 10202, and an extending direction of the extended portion 10203 is consistent with an extending direction of the crimping end.

In one embodiment of the present invention, the end surfaces of the main bodies of the two bent female signal terminals in one differential pair, which are located at the crimp ends, are offset and staggered to both sides by the offset portions, and then extend for a certain distance by the extension portions, one of the bent female signal terminals is bent downward and then bent horizontally, and the other bent female signal terminal is bent upward and then bent horizontally, so that the two crimp ends in one differential pair are located in one row. In this embodiment, the offset direction of the offset portion is such that the distance between the two opposing faces in a pair of differential pairs is constant, and the distance between the faces perpendicular to the opposing faces is increased. In this embodiment, the surface of the fish-eye structure at the crimping end is parallel to the arrangement direction of the plurality of differential pairs on the same curved mother wafer (as shown in fig. 13A and 13B); or the two bent female signal terminals in one differential pair may be staggered relatively through the offset portion, and then bent horizontally, so that the two bent female signal terminals in one differential pair are located in a row along the second direction. In this embodiment, the offset of the offset portion makes the extending direction of the crimping ends of the two signal terminals in the differential pair inconsistent with the terminal body to which they are connected. In this embodiment, the surface of the fish-eye structure at the crimp end is perpendicular to the arrangement direction of the plurality of differential pairs on the same curved mother wafer (as shown in fig. 13C and 13D).

On the basis of the embodiments shown in fig. 11A and 11B and fig. 13A and 13B, please refer to fig. 14A and 14B, the bottom of the curved female insulator near the curved female wafer crimping surface is bent toward the direction of another curved female insulator to form a plurality of protrusions 10111, the protrusions 10111 are used for wrapping the crimping ends 1022 of the corresponding curved female signal terminals mounted on the curved female insulator to strengthen the terminal strength at the bending position, and the corresponding protrusions on the two curved female insulators are in snap fit, and all the protrusions form serrated snap-fit latches along the length direction, so as to facilitate the snap-fit of the two curved female insulators.

Referring to fig. 15A and 15B, the curved female connector further includes a curved female conductive buckle 104 mounted at the crimping end of the curved female die and adapted to cooperate with two curved female shielding plates to omni-directionally shield the differential signal pair at the crimping end of the curved female die.

One preferred embodiment is: referring to fig. 15C, the curved female shielding plate has a structure as shown in fig. 11A, a plurality of slots 10112 are disposed on the curved female insulator 1011, two adjacent slots are in a group and are respectively located at two sides of one protrusion 10111, and when the two curved female shielding plates are assembled at the outer sides of the two curved female insulators, the end portions of the two slots correspondingly distributed on the two curved female insulators are closed by the curved female shielding plate at the same side to form a slit 10113; be equipped with a plurality of signal terminal on the female conductive buckle of curved and keep away hole I1041, a plurality of ground connection pinhole 1042 and a plurality of conductive buckle lug 1043, two ground connection pinholes are a set of and lie in a signal terminal respectively and keep away the both sides in hole I, and conductive buckle lug lies in ground connection pinhole and signal terminal and keeps away between the hole I, can keep off the buckle main part that the hole I was kept away to signal terminal with conductive buckle lug for processing and establish structure as an organic whole (as shown in fig. 15A). Referring to fig. 15D, when the curved female conductive buckle is fastened to the press-contact surface formed by the press-contact ends of the curved female chips, the differential pairs at the press-contact ends of the curved female signal terminals respectively enter the corresponding signal terminal avoiding holes i, the terminal connection structures of the curved female folding pieces of the curved female shielding plates respectively enter the corresponding grounding pin holes, the conductive buckle tabs are respectively inserted into the corresponding slits, and the side wall of each conductive buckle tab is respectively contacted with two curved female shielding plates, so that the beneficial effects of the design are as follows: because both ends of the bent mother wafer are provided with the shielding plates, under the condition, the conductive parts (namely, the conductive pinch plate protruding pieces) are filled between the differential pairs of the crimping ends, and then the two conductive pinch plate protruding pieces and the two shielding plates shield the corresponding differential signal pairs from four directions, namely, the differential signal pairs are shielded in an all-dimensional mode, and the full shielding effect can greatly reduce the signal crosstalk of different differential pairs at the crimping ends.

Another preferred embodiment is: referring to fig. 15E and 15F, the bent female shielding plate has a structure as shown in fig. 11F, and the bent female conductive buckle plate is provided with a plurality of signal terminal avoiding holes i 1041 and a plurality of grounding pin holes 1042, where two grounding pin holes are in a group and located at two sides of one signal terminal avoiding hole i respectively; curved female conductive buckle is equipped with a plurality of spacing sand grips 1044 towards being parallel on the face of curved female wafer, and the space between two adjacent spacing sand grips separates for a plurality of shielding chamber holding tanks 1046 through a plurality of spacing lugs 1045, and the signal terminal that distributes in every shielding chamber holding tank keeps away hole I and two corresponding ground connection pinholes, and two ground connection pinholes are located a signal terminal and keep away the both sides of hole I. Referring to fig. 15G, when the curved female conductive buckle plate is fastened to the press-contact surface formed by the press-contact ends of the curved female chips, the curved female shielding cavities 1014 at the press-contact ends of the curved female signal terminals enter the corresponding shielding cavity accommodating cavities 1046, respectively, and one differential pair in each curved female shielding cavity enters the corresponding signal terminal avoiding hole i, and the terminating structures on the curved female folding pieces on both sides of the curved female shielding cavity enter the corresponding grounding pin holes, respectively.

Another preferred embodiment is: referring to fig. 15H and 15I, the bent female shielding plate has a structure as shown in fig. 11C, and the bent female conductive buckle plate is provided with a plurality of signal terminal avoiding holes I1041 and a plurality of grounding pin holes 1042, and two grounding pin holes are in a group and located at two sides of one signal terminal avoiding hole I respectively; the curved female conductive buckle plate is provided with a plurality of limiting convex strips 1044 in parallel on the surface facing the curved female wafer, a plurality of limiting convex blocks 1045 and a plurality of limiting convex seats 1046 are distributed on the inner wall of the same limiting convex strip in a cross manner, and the limiting convex blocks 1045 and the limiting convex seats 1046 on two adjacent limiting convex strips are distributed in a one-to-one manner. Referring to fig. 15J, when the curved female conductive buckle plate is fastened to the press-contact surface formed by the press-contact ends of the curved female chips, the plurality of differential pairs at the press-contact end of the curved female signal terminal enter the corresponding signal terminal avoiding hole i, respectively, and the terminal connection structure on the curved female flap of the curved female shielding plate passes through the gap between the limiting protrusion and then enters the corresponding grounding pin hole.

Referring to fig. 16A, 16B and 16C, the curved female connector further includes a curved female housing 105, the curved female housing has an insertion cavity on an insertion surface 1051 (a surface for inserting the curved male connector into another), the insertion cavity is provided with a plurality of shielding member supporting columns 1052 therein, and an inner wall of the insertion cavity may be provided with a convex key extending along an insertion direction for preventing mis-insertion; each shielding support column is sleeved with a bent female contact shielding piece 106, and the bent female contact shielding piece is in a full shielding form; each shield support post is internally provided with a differential pair receiving cavity for receiving the contact ends of two bent female signal terminals included in one differential pair. The beneficial effect of aforementioned design does: forming a full shield enclosure to the terminal plugs of the differential pairs, reducing crosstalk between the differential pairs; the shielding piece support column is used for supporting the shielding piece on the one hand, and on the other hand is used for accommodating the differential pair contact, has the function of supporting the shielding piece and accommodating the differential pair contact simultaneously, is more convenient for the assembly of the shielding piece and the differential pair contact, can prevent the shielding piece from conducting with the high voltage of the internal differential contact, and is also more convenient for modular production.

Referring to fig. 16D and 16E, the insertion surface around the shielding member supporting column is provided with a hollow top slot 1053, two side slots 1054, and a bottom slot 1055; referring to fig. 16F, a top tab 1061, two side tabs 1062, and a bottom tab 1063 are disposed at an end of the bent female contact shield for being inserted into the mating surface, and when the bent female contact shield is sleeved on the shield support post, the top tab, the side tabs, and the bottom tab are inserted into and pass through the corresponding top slot, the side slot, and the bottom slot, respectively. The beneficial effect of aforementioned design does: side inserted sheet, top inserted sheet, end inserted sheet are the structure that has elastic stress, and during actual assembly, curved female contact shielding member inserts the back from inserting face one side and assembles on the shielding member support column, and the shielding member assembly of being convenient for is fixed on inserting the face.

The bent female contact shield may take the following structural form: (1) a stand-alone unitary structure, as shown in fig. 16F; (2) A split structure, as shown in fig. 16G, has two oppositely distributed wide-walled shielding plates 1064, and a plurality of narrow-walled shielding plates 1065 located between the two wide-walled shielding plates and having their side walls detachably connected (e.g., snap-connected) with the wide-walled shielding plates on the same side to form a plurality of bent female contact shields on the same row.

Referring to fig. 17A, the curved female connector further includes curved female conductive pads 107 disposed at the contact ends of the curved female wafers and respectively connected to the curved female shielding plates and the curved female contact shields to form electrical conduction between the curved female shielding plates, between the curved female contact shields, and between the curved female contact shields and the curved female shielding plates. By means of the design, the bent female conductive gasket conducts all the grounding parts of the contact end, so that the shortest grounding loop of the contact end is formed as much as possible, and further the crosstalk influence is reduced.

Specifically, referring to fig. 17B, the bent female conductive gasket is provided with a plurality of shielding element accommodating grooves 1071 and a plurality of side insert accommodating grooves 1702, wherein the upper and lower inner side walls of each shielding element accommodating groove opposite to each other are provided with steps facing the bent female contact shielding element; two side plug-in sheet holding tanks are a set of and set up respectively in the left and right sides of a shielding part holding tank. Referring to fig. 17A, the bent female shield plates have at least one shield plate tab 1016 formed at a side thereof adjacent to the contact end of the bent female signal terminal, and referring to fig. 17C, when the bent female conductive gasket is mounted on the contact end of the bent female wafer, the shield plate tabs contact with upper and lower inner sidewalls of the shield receiving groove to conduct between the bent female shield plates. Further, referring to fig. 17A, 17D and 17E, the shielding plate has a first protrusion 10161 and a second protrusion 10162 on the top edge and the bottom edge of the protruding piece, when the bent female conductive gasket is assembled on the contact end of the bent female wafer, the first protrusion 10161 contacts with the upper and lower inner sidewalls, so as to ensure that the bent female shielding plate is not affected by the external environment, and is directly inserted into and fixed with the bent female conductive gasket; referring to fig. 17F and 17G, the top and bottom insertion tabs at the end of the shielding element of the bent female contact penetrate through the corresponding top and bottom slots and then enter the shielding element receiving groove until they touch the step and the side insertion tabs penetrate through the corresponding side slots and then enter the side insertion tab receiving groove, the second protrusion 10162 contacts with the top insertion tab 1061 or the bottom insertion tab 1063 of the bent female shielding element to push the top and bottom inner side walls of the shielding element receiving groove, and the top insertion tab or the bottom insertion tab is more firmly contacted with the bent female conductive gasket by virtue of the pushing effect of the second protrusion on the top insertion tab or the bottom insertion tab; further, referring to fig. 17G, a hollow second protrusion through hole 10163 is disposed inside the shielding plate protruding piece close to the second protrusion, and the second protrusion through hole enables the second protrusion to have extrusion elasticity, so as to be more flexibly matched with the top inserting piece or the bottom inserting piece in an extrusion manner. Further, referring to fig. 17G, a top insert protrusion 10611 is provided on the top insert of the bent female contact shield to be wedged in the upper inner sidewall of the shield receiving groove when the bent female contact shield is assembled with the bent female conductive pad, and a bottom insert protrusion 10631 is provided on the bottom insert in the lower inner sidewall of the shield receiving groove when the bent female contact shield is assembled with the bent female conductive pad, so that the bent female contact shield can be more firmly fixed with the bent female conductive pad.

The male bending connector 20 includes a male bending housing and a plurality of male bending wafers mounted in parallel in the male bending housing. Referring to fig. 18A, each bent male wafer 201 includes a bent male insulator 2011 and a first bent male shielding plate 2012 and a second bent male shielding plate 2013 respectively mounted on both sides of the bent male insulator, and the bent male signal terminals 202 are mounted on the bent male insulator 2011. Referring to fig. 18B, two bent male shielding plates (i.e., a first bent male shielding plate and a second bent male shielding plate) at two sides of each bent male wafer extend along the mating direction to form a shielding plate extension region 2014, a shielding plate connecting conductor 2015 is disposed at a side portion of the bent male insulator at the contact end of the bent male signal terminal, and the shielding plate connecting conductor is located between two adjacent bent tolerance pairs, and two sides of the shielding plate connecting conductor are respectively in contact with the shielding plate extension region of the first bent male shielding plate and the shielding plate extension region of the second bent male shielding plate, so that any bent male differential pair in the bent male wafer forms a full shielding enclosure structure (as shown in fig. 18C) at the upper, lower, left, and right sides, and can effectively reduce crosstalk between the differential pairs.

The two bent male shielding plates are bent at the crimping ends to form a full shield, thereby shielding between the crimping ends of the bent male differential pairs. Specifically, referring to fig. 19A-19C, the bottom of the bent male shielding plate at the crimping end is bent to form a bent male tab 2016, which is fitted into a corresponding slot 20111 in the bent male insulator when the bent male shielding plate is assembled with the bent male insulator, such that when the first bent male shielding plate and the second bent male shielding plate are snapped onto the bent male insulator, shielding between the bent tolerance pairs in the bent male insulator is formed (as shown in fig. 19C), and at this time, the bent male shielding plates on both sides and the corresponding bent male shielding plate on the bent male insulator enclose a plurality of bent male shielding cavities 2017, each bent male shielding cavity 2017 accommodating the crimping end of one differential pair. The beneficial effect of aforementioned design does: when viewed from the crimping end, the bent male differential pair forms a form fully surrounded by the shielding plate and the bent male folding sheet, so as to form a fully surrounded shield for the crimping end differential pair, further ensure the shielding effect, and simultaneously still form a terminal arrangement form of GGSSGGSSGG at the crimping end.

The bent male connector also comprises a bent male conductive buckle plate 203, the end part of the bent male folding plate is provided with a termination structure, and correspondingly, the bent male conductive buckle plate is provided with a grounding pin hole 2031; after the assembly of the bent male conductive pinch plate is completed, the terminating structure is clamped in the grounding pin hole, so that the fixed assembly of the bent male conductive pinch plate can be realized, and the bent male conductive pinch plate is a conductor, namely, bent male shielding cavities formed by all bent male shielding plates are completely connected to form a full grounding effect, so that the crosstalk is further reduced. Referring to fig. 20A, the curved male conductive buckle plate is further provided with a signal terminal avoiding hole ii 2032 corresponding to the curved tolerance pair, so that the crimping end of the curved male signal terminal included in each curved tolerance pair passes through the signal terminal avoiding hole ii 2032 and is electrically connected to the circuit board, and the circuit board described herein can be understood as a mounting carrier circuit board of the whole curved male connector. And two sides of each signal terminal avoiding hole II 2032 are provided with grounding pinholes. Further, the bent male conductive clip 203 is first fastened to the conductive plate 208 and then assembled to the circuit board. The conducting strip 208 is further provided with a through hole structure 2084 and a hook 2081 bent towards the direction of the bent male conductive buckle plate 203, the through hole structure 2084 and a signal terminal avoiding hole II 2032 on the bent male conductive buckle plate 203 are correspondingly used for passing through a signal terminal, and two sides of the through hole structure 2084 are also provided with corresponding grounding pin holes. The curved male conductive buckle plate 203 is provided with a mounting hole 1047 for assembling the hook 2081, and the side of the conductive plate 208 contacting the circuit board is also provided with an elastic sheet I2082 for connecting with a grounding structure on the circuit board, so as to enhance the shielding effect.

Referring to fig. 20B, further, a C-shaped pin 2041 is disposed on a side of the curved male conductive buckle plate contacting the circuit board, and the C-shaped pin is used for connecting with a ground hole or other grounding structure on the circuit board, so as to make up a gap between the curved male conductive buckle plate and the circuit board by the C-shaped structure, thereby enhancing the shielding effect.

Referring to fig. 20C, in another embodiment of the present invention, a plurality of elastic claws 2042 which are ejected towards the circuit board direction may be further disposed on the conductive plate 208 which is fastened to the bent male conductive buckle 203; two sides of each through hole structure 2084 are respectively provided with one elastic claw 2042, the two elastic claws 2042 are distributed in point symmetry, the elastic claws 2042 are connected with the hooks 2081 through fixing portions 2083, and the centers of the fixing portions 2083 are located on a connecting line of the centers of the two adjacent through hole structures 2084 (namely, the centers are also located on a connecting line of corresponding two bending tolerance pairs on two adjacent bent wafers).

If the process allows, the elastic sheet i 2082 and the elastic claw 2042 can be directly arranged on the side surface of the bent male conductive buckle plate 203, which is in contact with the circuit board, and the gap between the bent male conductive buckle plate and the circuit board is made up by means of the C-shaped pin 2041, the elastic sheet i 2082 or the elastic claw 2042, so that the crosstalk resistance effect is improved.

It should be noted that the above structural arrangement of the bent male conductive buckle plate 203 is also applicable to the bent female conductive buckle plate 104.

The contact of the insertion end of the bent male signal terminal needs to have enough thickness so as to have enough propping clamping force corresponding to the clamping end; however, if the thickness of the insertion end contact of the bent male signal terminal is the same, under the condition of the existing process, more complicated operation is needed to adjust the impedance of the terminal body, for example, the width of the terminal body is cut to be thinner to meet the impedance requirement, which is difficult to achieve by the existing cutting process, so the thickness of the insertion end contact is gradually reduced from the front end (insertion end) to the rear end (departing from the insertion end) of the contact. Preferably, referring to fig. 21A and 21B, the width of the contact gradually narrows from the rear end to the front end to form a gradual region 2021, which is fault-tolerant to the impedance of the actual male and female connectors when they are plugged. In another embodiment, referring to fig. 21C, because the step material cost process requirement is also high, a relatively thick contact is formed at the front end of the contact compared to the rear end of the contact by crimping the contact 2022 to solve the problem of clamping force.

This application sets up first shell fragment on the shield plate extension area of curved public shield plate, first shell fragment be used for with the outer wall elasticity roof pressure of curved female contact shielding piece in order to realize shielding contact when curved public connector and curved female connector are to inserting. The design form of the first elastic sheet includes but is not limited to the following structures:

(1) Referring to fig. 22A and 22B, a plurality of first elastic pieces 205 are disposed in the extension region of the shielding plate, and each two elastic pieces form an elastic piece group and are in shielding contact with the bent female contact shielding member on the upper side and the bent female contact shielding member on the lower side respectively. Specifically, two elastic sheets in each elastic sheet group are bent towards different sides of the extension area of the shielding plate respectively, the first elastic sheets 205 are both in a 7-shaped structure, the two first elastic sheets are distributed in point symmetry, the bent parts of the 7-shaped structure form contacts for elastically contacting with the corresponding bent female contact shielding piece, both ends of the first elastic sheets in the figure are fixed ends, and free ends are not provided, so that the elastic force is good, and smooth plugging and unplugging are facilitated;

(2) Referring to fig. 22C and 22D, the first elastic sheet 205 is bent toward one side of the extension region of the shielding plate, and elastically contacts with a bent female contact shielding member at the corresponding side of the extension region of the shielding plate to realize shielding conduction. The first elastic sheet is also in a 7-shaped structure, and two ends of the first elastic sheet are fixed ends;

(3) Referring to fig. 22E to 22G, each two spring strips 205 form a spring strip group, and the two spring strips in one spring strip group are respectively bent toward different sides of the extension region of the shielding plate, so as to be in shielding contact with the bent female contact shielding member on the upper side and the bent female contact shielding member on the lower side. Specifically, one end of the elastic sheet in the figure is a fixed end, the other end of the elastic sheet is a movable end, and the contact formed by bending is arranged close to the movable end;

(4) Referring to fig. 22H to 22J, the first elastic sheet 205 is bent toward one side of the extension region of the shielding plate, and elastically contacts with a bent female contact shielding member at the corresponding side of the extension region of the shielding plate to realize shielding conduction. Specifically, in the figure, one end of the elastic sheet is a fixed end, the other end of the elastic sheet is a movable end, and the contact formed by bending is arranged close to the movable end.

Referring to fig. 22K to fig. 22L, the elastic sheet shown in fig. 22H may be disposed on the extending region of the shielding plate of the bent male shielding plate, and a first convex hull 206 may be disposed at the same time, and each convex hull is used for shielding contact with the bent female contact shielding member on the same side when the bent male connector and the bent female connector are plugged into each other. Note that the first convex hull is not limited to the structure shown in fig. 22H, and may be added to the structure shown in any one of fig. 22A, 22C, and 22E.

The other end of the bent female contact shielding member for plugging with the bent male connector is provided with a second convex hull 1066 (as shown in fig. 23A to 23C) or a second elastic sheet 1067 for shielding and contacting with at least one of the extension areas of the shielding plate and the conductor connected with the shielding plate when the bent male connector and the bent female connector are plugged into each other, wherein the end of the second elastic sheet far away from the other end of the bent female contact shielding member is fixedly connected with the bent female contact shielding member, the other end is a movable end (as shown in fig. 23D to 23F), or the end of the second elastic sheet close to the other end of the bent female contact shielding member is fixedly connected with the bent female contact shielding member, and the other end is a fixed end (as shown in fig. 23G to 23I).

The shield plate connecting conductor 2015 is used for contacting with the outer wall of the bent female contact shield to realize shielding conduction when the bent female connector and the bent male connector are plugged, and the structure form of the shield plate connecting conductor 2015 includes but is not limited to the following schemes:

(1) Referring to fig. 24A and 24B, the shield plate connecting conductor is only a plate-shaped structure;

(2) Set up two crooked contact shell fragment 20151 on the shield plate connecting conductor of sheet structure to make the shield plate connecting conductor left and right sides can both be with corresponding curved female contact shield elastic contact. It should be noted that one end of the double-bending contact spring is a fixed end, and the other end is a movable end, where the fixed end may be disposed at the rear end of the shielding plate connecting conductor, and the movable end is close to the front end of the shielding plate connecting conductor (as shown in fig. 25A and 25B); the fixed end can also be arranged at the front end of the shielding plate connecting conductor, and the movable end is close to the rear end of the shielding plate connecting conductor (as shown in fig. 25C and 25D);

(3) Referring to fig. 26A and 26B, two contact springs 20152 bent toward different sides of the shield plate connecting conductor are disposed in parallel on the shield plate connecting conductor of the plate structure. Compared with the distance between the protrusion at the upper part of the double-bending contact spring piece and the swing shaft (namely, the fixed end) of the spring piece in the second embodiment, the distance between the two left and right salient points and the swing shaft (namely, the fixed end) of the spring piece in the embodiment is larger;

(4) Referring to fig. 27A to 27C, the present embodiment adopts a double-sheet form, that is, the shielding plate connecting conductor is formed by buckling two sub-shielding plate connecting conductors 20150, each sub-shielding plate connecting conductor is provided with a third elastic sheet 20153, and the two third elastic sheets are distributed oppositely and are both bent toward the outer side of the shielding plate connecting conductor;

(5) Referring to fig. 28A and 28B, compared to the third embodiment of the shield plate connecting conductor, the fixed end of the contact spring 20152 can be disposed near the front end of the shield plate connecting conductor to avoid the spring being pushed up and tilted during plugging;

(6) Referring to fig. 29A to 29C, the present embodiment adopts a double-sheet form, that is, the shielding plate connecting conductor is formed by buckling two sub-shielding plate connecting conductors 20150, and each sub-shielding plate connecting conductor is provided with a fourth elastic sheet 20154 bent toward the other sub-shielding plate connecting conductor;

(7) Referring to fig. 30A to 30C, two contact shrapnel 20152 are arranged in a staggered manner in tandem, that is, the fixed end of one contact shrapnel is located at the front end of the shield connecting conductor, the fixed end of the other contact shrapnel is located at the rear end of the shield connecting conductor, and the bending directions of the two contact shrapnels are opposite;

(8) Referring to fig. 31A to 31C, a double-pair spring plate form is adopted on the basis of the third embodiment, wherein the fixed ends of one pair of contact spring plates are located at the front end of the shielding plate connecting conductor, the fixed ends of the other pair of contact spring plates are located at the rear end of the shielding plate connecting conductor, and the two opposite contact spring plates are respectively bent towards different sides of the shielding plate connecting conductor, so that the contact probability between the shielding plate connecting conductor and the bent female contact shielding member is increased;

(9) Referring to fig. 32A to 32C, in the present embodiment, a double-plate form is adopted, two ends of each third elastic sheet 20153 are fixed ends, the middle is a movable end, and a protrusion for contacting with the bent female contact shield is formed after tilting; the movable ends of the two third elastic sheets are tilted towards the outer side of the shielding plate connecting conductor;

(10) Referring to fig. 33A and 33B, the embodiment adopts a three-piece form, that is, another sub-shielding plate connecting conductor is additionally arranged between two sub-shielding plate connecting conductors (as shown in the ninth embodiment) to block the space between the two third elastic pieces, so as to further prevent crosstalk between adjacent differential pairs;

(11) Referring to fig. 34A to 34C, the present embodiment adopts a single-piece form, and the third resilient tab 20153 is disposed on only one side of the shield connecting conductor, i.e. both ends of the resilient tab are fixed ends, and the middle thereof is tilted to form a contact.

(12) Referring to fig. 35A to 35C, in the present embodiment, a middle sub-shielding connecting conductor and elastic pieces are disposed on two sides of the middle sub-shielding connecting conductor, that is, fifth elastic pieces 20155 are disposed on two sides of a sub-shielding plate connecting conductor 20150, a fixed end of the fifth elastic piece 20155 is disposed near a rear end of the shielding plate connecting conductor, and the other end is a movable end, the fixed end of the fifth elastic piece 20155 is fixed to the sub-shielding plate connecting conductor 20150 by welding, and the two fifth elastic pieces 20155 are distributed in a staggered manner and are bent toward an outer side of the shielding plate connecting conductor; when the curved female connector and the curved male connector are plugged into each other, the fifth elastic sheet 20155 is used for being in contact with the outer wall of the curved female contact shielding piece to realize shielding conduction. At this time, the structure of the bent female contact shield is as shown in fig. 23J to 23K, and both side end portions of the bent female contact shield are not provided with the convex hulls and the spring plate structures, as shown in fig. 36, the bent female contact shield is in a state diagram when being matched with the shield plate connecting conductor in the embodiment, that is, the fifth spring plate 20155 is directly attached to the side wall of the bent female contact shield in an elastic manner.

Have installation arch 20158 on sub-shield plate connecting conductor 20150, installation arch 20158 is located sub-shield plate connecting conductor 20150's rear end, and the position that corresponds with sub-shield plate connecting conductor 20150 on the curved public insulator is provided with mounting groove 20160, and installation arch 20158 and the mounting groove interference fit on the insulator to install shield plate connecting conductor on the insulator.

Sub-shield plate connecting conductor 20150 both sides still all have spacing arch 20156 and crashproof arch 20157, spacing arch 20156 and crashproof arch 20157 respectively with fifth shell fragment 20155 one-to-one. Referring to fig. 36, when the curved female connector and the curved male connector are plugged into each other, the limiting protrusion 20156 is used for limiting the curved female contact shield to prevent the curved female contact shield from excessively pressing the fifth elastic sheet 20155. The bump 20157 is located in front of the fifth elastic sheet 20155, which is located in the front direction (as shown in fig. 35A) close to the front end of the sub-shielding plate connecting conductor 20150 in this embodiment, and the height of the bump 20157 is smaller than the bounce height of the fifth elastic sheet 20155 in the natural state so as to protect the fifth elastic sheet 20155; when curved female connector and curved male connector are to inserting, curved female contact shielding piece passes through crashproof protruding 20157 earlier and then contacts fifth shell fragment 20155, can prevent that curved female contact shielding piece direct action from making fifth shell fragment 20155 take place to damage at the tip that fifth shell fragment 20155 is close to sub-shield and connects conductor 20150 front end. Still be provided with on sub-shield plate connecting conductor 20150 and dodge hole 20159, dodge hole 20159 and be used for dodging the tip that fifth shell fragment 20155 is close to sub-shield plate connecting conductor 20150 front end.

By means of the design, when the bent female connector and the bent male connector are plugged, the bent female contact shielding piece, the shielding extension area of the bent male shielding plate and the elastic contact of the shielding plate connecting conductor are ensured (as shown in fig. 37A and 37B), and the shielding contact is realized.

Referring to fig. 38, in another embodiment, in order to achieve contact conduction of the bent male shielding plates at two sides of the bent male wafer on the main body portion thereof, a shielding plate connecting conductor of a sheet structure may be disposed between the extending regions of the shielding plates, and then a conductive plastic may be molded on the first bent male shielding plate or the second bent male shielding plate at one side of the bent male insulator, the conductive plastic extends out of the cylindrical convex hull 207, and the cylindrical convex hull passes through the hole of the bent male insulator during assembly and then contacts and cooperates with the shielding plate at the other side of the bent male insulator, so as to achieve contact conduction of the two bent male shielding plates inside the bent male wafer, at this time, the bent male shielding plates at two sides are in contact conduction at the main body portion and the extending regions of the shielding plates, although the conductive plastic may have other shapes, such as a convex structure like a cone, a polygonal pyramid or a polygonal pyramid, and the like, which is not limited by the present invention. Furthermore, the aforementioned design can also be applied to a bent female shield plate.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art can make any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the present invention without departing from the scope of the present invention, and still fall within the scope of the present invention.

Claims

1. A sub-connector, characterized in that: the wafer comprises a plurality of wafers which are arranged in parallel, each wafer comprises an insulator and shielding plates arranged on two sides of the insulator, a differential pair is arranged in the insulator, and the shielding plates on the two sides are connected with a conductor through the shielding plates to realize contact conduction; the shielding plate comprises a main body part and shielding plate extension areas extending from the main body part to the contact end directions of the differential pairs, two sides of the shielding plate connecting conductors are correspondingly contacted and conducted with the shielding plate extension areas on the two sides respectively, and the shielding plate connecting conductors are positioned between the adjacent differential pairs, so that a full-shielding surrounding structure is formed around the contact end of any differential pair; the wafer is characterized in that one end of the insulator, which is provided for the extension of the contact ends of the differential pairs, is provided with a mounting groove, the shielding plate connecting conductor is forcibly arranged in the mounting groove, two sides of the shielding plate connecting conductor are respectively welded with the extension areas of the shielding plates on the two sides correspondingly, and the insulator of the wafer is internally provided with no grounding terminal; the shield plate connecting conductor comprises a sub shield plate connecting conductor and elastic pieces fixed on two sides of the sub shield plate connecting conductor, and the elastic pieces are used for elastically contacting with a shield piece in the adapter connector.

2. The sub-connector of claim 1, wherein: the shield plate connecting conductor is of a sheet structure.

3. The sub-connector of claim 1, wherein: and the main body part of the shielding plate on one side is injected with conductive plastic, the conductive plastic extends out of the cylindrical convex hull, and the cylindrical convex hull penetrates through the insulator and is contacted with the main body part of the shielding plate on the other side.