CN113437594B - High speed sub-connector - Google Patents

Abstract

The high-speed sub-connector comprises a plurality of wafers, wherein the wafers comprise insulators and shielding plates arranged on two sides of the insulators, differential pairs are arranged in the insulators, signal terminals in the differential pairs respectively comprise contact ends, terminal bodies and crimping ends, the arrangement direction of the differential pairs formed by the signal terminals of each wafer at the contact ends is defined as a first direction, the arrangement direction of the crimping ends of the differential pairs is defined as a second direction, the contact ends and the terminal bodies of the two signal terminals forming the differential pairs are distributed in two rows along the first direction, and the crimping ends are distributed in one row along the second direction; the shield plates on both sides of each wafer are bent at the crimp ends of the differential pairs to form a plurality of shield cavities, each housing the crimp ends of one differential pair. The invention makes the pressure welding ends of the differential pairs in the wafer on the same straight line, and solves the problem of overlarge circuit board area caused by left and right arrangement of the terminals; the shielding plates on the two sides are bent to form shielding cavities, so that surrounding shielding can be performed on each differential pair, and the shielding effect at the crimping end is improved.

Description

High speed sub-connector

Technical Field

The present invention relates to a high-speed sub-connector.

Background

In the prior art, the signal terminals of the typical broadside-coupled connector are arranged in two rows, which results in two rows of crimping terminals on the crimping surface of the differential pair formed by the signal terminals, so that the circuit board to be mated with the crimping surface of the connector terminal must have a sufficient width, i.e. the area occupied by the prior broadside-coupled connector on the circuit board is large, and the prior broadside-coupled connector is not used.

In the prior art, a shielding plate is arranged on one side of a wafer (wafer) in a high-speed sub-connector, and the crimping fisheye end of the shielding plate is bent inwards on the basis of narrow-edge coupling of the wafer, so that the fisheye crimping end of the shielding plate and the crimping end of a differential pair are on the same straight line, and a GSSG classic common coplanar waveguide model is realized. In the prior art, the crimping fisheye is bent only on the shielding plate on one side, and the body part of the bent fisheye is attached to the side edge of the wafer insulator only in a planar mode, so that the shielding of the differential pair on the three-dimensional space cannot be formed, and the circumferential shielding of the differential pair on the three-dimensional space cannot be formed because the shielding plate is not arranged on the other side of the wafer.

Disclosure of Invention

Aiming at the problems that the existing broadside-coupled connector occupies too large space at the crimping end and the shielding effect of the crimping end is poor, the invention provides a high-speed sub-connector, which enables a signal terminal in the high-speed sub-connector to be in a broadside coupling mode at a contact end and a terminal body part, and a fully-enclosed shielding cavity to be formed at the crimping end.

The invention provides a high-speed sub-connector, which comprises a plurality of wafers distributed in parallel, wherein each wafer comprises an insulator and shielding plates arranged on two sides of the insulator, a differential pair is arranged in the insulator, signal terminals in the differential pair respectively comprise a contact end, a terminal body and a crimping end, the arrangement direction of the differential pair formed by the signal terminals of each wafer at the contact end is defined as a first direction, the arrangement direction of the crimping ends of the differential pair is defined as a second direction, the contact ends and the terminal bodies of the two signal terminals forming the differential pair are distributed in two rows along the first direction, and the crimping ends are distributed in one row along the second direction; the shield plates on both sides of each wafer are bent at the crimp ends of the differential pairs to form a plurality of shield cavities, each housing the crimp ends of one differential pair.

Further, the signal terminal has a transition region between the terminal body and the crimping end, the transition region includes an offset portion and a bending portion, wherein the offset portions of the signal terminals forming a differential pair have opposite offset directions and the bending directions of the bending portions are opposite.

Further, the transition region further comprises an extending part connecting the offset part and the bending part, and the extending part is consistent with the extending direction of the crimping end.

Furthermore, each side shielding plate is bent to form a folded piece towards the other side shielding plate, and the main body part of the edge of the shielding plate at the two sides and the bent folded piece surround the shielding cavity.

Furthermore, the shielding plate and the folded flap are orthogonally arranged.

Furthermore, the folded piece on each side of the shielding plate is in contact conduction with the shielding plate on the other side.

Further, the end of the flap facing the circuit board is provided with a termination structure. The termination structure is a fish eye structure, and the folded piece and the termination structure jointly form a termination terminal of the shielding plate.

Furthermore, the wafer connector further comprises a conductive buckle plate arranged on the wafer crimping surface, the conductive buckle plate is provided with a grounding pin hole, and the end binding joint on the folding piece is forcibly arranged in the corresponding grounding pin hole so as to realize the fixed assembly of the conductive buckle plate and the shielding conduction of all shielding cavities in the sub-connector.

Furthermore, the conductive pinch plate is provided with signal terminal avoiding holes corresponding to the differential pairs, so that after the conductive pinch plate is installed, the crimping ends of the differential pairs penetrate out of the corresponding signal terminal avoiding holes and are electrically connected with the circuit board.

Furthermore, the conductive pinch plate is provided with a spring pin protruding towards the direction of the circuit board, and the spring pin is used for being connected with a grounding structure on the circuit board.

Furthermore, one side of the conductive pinch plate facing the insulator is provided with a conductive pinch plate lug; after the conductive pinch plate is installed, the conductive pinch plate lug is positioned between the adjacent differential pairs in the same wafer, namely a layer of shielding wall is arranged between the differential pairs, and the crosstalk between the adjacent differential pairs is further reduced.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the crimping end of the broadside coupling is converted into the crimping end of the GSSG form of the narrow side coupling, namely all signals S are on the same straight line, so that the problem that the area of a circuit board occupied by the terminals is too large due to the left and right arrangement of the terminals is solved, and the high-density integration of the connector is further improved. In addition, the shielding plates on the two sides of the wafer are bent to form the shielding cavities, so that independent surrounding shielding can be carried out on each differential pair, and the shielding effect of the differential pairs at the crimping ends of the differential pairs is improved.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions 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 understood, the following preferred embodiments are specifically described below 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 coupled form.

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

Fig. 6 is a schematic view of the terminal insertion.

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 with the curved mother wafer of 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 the bent female contact shield with the shield support posts.

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.

Fig. 17A is a schematic view of the assembly of the bent female contact shield, bent female conductive pad and bent female wafer.

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

Fig. 17C-17E are schematic views of the mounting of bent female conductive pads on 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 assembly views of bent male wafer contact ends.

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 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 elastic pieces on the shield plate 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), the effect of orthogonal connection is just achieved by means of the form of 'one wide and one narrow' of the contact ends, because the concept of 90-degree turning is embodied by 'wide-side coupling' and 'narrow-side coupling', the high-speed orthogonal connector provided by the invention 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, thereby overcoming the defect caused by the bending process adopted by the contact end of the signal terminal. 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 which can be attached to the contact end in the form of a metal wire to cause various accidental short circuit of the contact end, such as overlapping between adjacent signal ends or overlapping between a signal end and a grounding end to cause the signal end to lose the signal transmission effect, so that a communication system using the orthogonal connector generates serious error codes, and when the bent male connector and the bent female connector are plugged, 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 is 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 the 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 GSSGGSSG on the crimping surface. The beneficial effect of aforementioned design lies in: because on the crimping face, each terminal forms a row of arranging (narrow limit is arranged), compares each terminal and forms the multiseriate and arranges (wide limit is arranged), can reduce the total area of crimping face, can save the wiring area of the printed board that corresponds from this, saves printed board space more, has also correspondingly promoted the arrangement of connector high density.

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, and the end of the bent female folding piece is provided with a terminating structure, which is a fish eye structure. 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 flap 10121 at the bottom of the first curved female shielding plate 1012 and the second curved female flap 10131 at the bottom of the second curved female shielding plate 1013 are distributed crosswise on the crimping surface, and a differential pair is distributed between the adjacent first curved female flap 10121 and the second curved female flap 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 curved female folding pieces in this embodiment are plate-shaped, after being bent once, the first curved female folding piece 10121 at the bottom of the first curved female shielding plate and the second curved female folding piece 10131 at the bottom of the second curved female shielding plate are respectively orthogonal to the corresponding shielding plates, and the two curved female folding pieces and the edge main body at the bottom of the two curved female shielding plates together form a curved 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, and the first bent female folding piece is buckled with the edge main body at the bottom of the second bent female shielding plate and the second bent female folding piece is buckled with the edge main body at the bottom of the first bent female shielding plate through the matching of the clamping hook and the clamping groove.

On the basis of the embodiment shown in fig. 11E and 11G, please refer to fig. 12A and 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 offset 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 extension portion 10203 for connecting the offset portion 10201 and the bending portion 10202, and an extension direction of the extension portion 10203 is consistent with an extension 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 at the crimp ends are offset and staggered to both sides by the offset portions, and then extend a distance by the extension portions, one bent downward and then bent horizontally, and the other bent upward and then bent horizontally, so that the two crimp ends in one differential pair are located in a 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. The surface of the fish-eye structure at the crimping end in this embodiment 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. And 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 the 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 respectively enter the corresponding shielding cavity receiving slots 1046, and one differential pair in each curved female shielding cavity enters the corresponding signal terminal avoiding hole i, and the terminal connection structures on the curved female folding pieces on both sides of the curved female shielding cavity respectively enter the corresponding ground pin holes.

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 crossed manner, and the limiting convex blocks 1045 and the limiting convex seats 1046 on the 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 ends of the curved female signal terminals respectively enter the corresponding signal terminal avoiding holes i, and the terminating structures on the curved female folding pieces of the curved female shielding plates pass through the gaps between the limiting protrusions and the limiting convex seats and then enter the corresponding grounding pin holes.

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 being inserted into the curved male connector), the insertion cavity has a plurality of shielding member supporting columns 1052 therein, and the inner wall of the insertion cavity may be provided with a convex key extending along the insertion direction for preventing wrong 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 plane around the shielding member supporting pillar 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 separate unitary structure, as shown in fig. 16F; (2) a splice-type structure, as shown in fig. 16G, has two oppositely distributed wide-wall shield plates 1064, and a plurality of narrow-wall shield plates 1065 located between the two wide-wall shield plates and having side walls detachably connected (e.g., snap-connected) with the wide-wall shield plates on the same side to form a plurality of bent female contact shields in 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 ends, so that the shortest grounding loop of the contact ends is formed as many 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 extending along the mating direction at a side portion 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 the 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 tab protrusion 10611 is disposed on the top tab of the bent female contact shield and wedged into 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 tab protrusion 10631 is disposed on the bottom tab and wedged into the lower inner sidewall of the shield receiving groove when the bent female contact shield is assembled with the bent female conductive pad, wherein the top tab protrusion and the bottom tab protrusion can fix the bent female contact shield with the bent female conductive pad more firmly.

The male connector 20 includes a male housing and a plurality of male wafers mounted in parallel in the male 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 at the upper, lower, left and right sides (as shown in fig. 18C), which 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 crimp end, the bent male differential pair is formed in a form fully surrounded by the shielding plate and the bent male tab, forming a fully surrounding shield for the crimp end differential pair, further ensuring the shielding effect while still forming GGSSGGSSGG of the terminal arrangement at the crimp 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 clips 203 are first fastened with the conductive pieces 208 and then assembled with 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 bent male conductive buckle plate 203 is provided with a mounting hole 1047 for assembling the hook 2081, and the side surface 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, the C-shaped pin is used for connecting with a grounding structure such as a ground hole on the circuit board, and the C-shaped structure makes up a gap between the curved male conductive buckle plate and the circuit board, 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 two adjacent through hole structures 2084 (namely, the centers are also located on a connecting line of two corresponding bending tolerance centering centers 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 C-shaped pin 2041 or the elastic sheet i 2082 or the elastic claw 2042 is used for making up the gap between the bent male conductive buckle plate and the circuit board, 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 a fault-tolerant function for 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, the crimp contact 2022 is used to form a relatively thick contact at the front end of the contact compared to the rear end of the contact 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 area 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 plates 205 form a spring plate group, and the two spring plates in one spring plate 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 spring plate in the figure is a fixed end, the other end of the spring plate 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 at the same time, the first convex hulls 206 may be disposed, 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 being plugged with the bent male connector is provided with a second convex hull 1066 (shown in fig. 23A to 23C) or a second elastic sheet 1067, which is used for being in shielding contact with at least one of the shielding plate connecting conductor and the shielding plate extension area 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 of the second elastic sheet is a movable end (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 of the second elastic sheet is a fixed end (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 sheet-like 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 may also be disposed 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 shielding plate connecting conductor of the present embodiment is formed by two sub-shielding plate connecting conductors 20150, each sub-shielding plate connecting conductor is provided with a third elastic piece 20153, and the two third elastic pieces are distributed oppositely and are 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 may be disposed near the front end of the shield plate connecting conductor to avoid the spring being pushed 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 fastening 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, a fixed end of one contact shrapnel is located at the front end of the shield connecting conductor, a fixed end of the other contact shrapnel is located at the rear end of the shield connecting conductor, and 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 being tilted; 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, in the present embodiment, a single piece is adopted, and the third elastic sheet 20153 is disposed on only one side of the shielding plate connecting conductor, that is, both ends of the elastic sheet are fixed ends, and the middle of the elastic sheet is tilted to form a contact.

(12) Referring to fig. 35A to 35C, the middle sub-shielding connecting conductor and the elastic pieces disposed on both sides of the middle sub-shielding connecting conductor are adopted in the present embodiment, that is, a fifth elastic piece 20155 is disposed on both sides of the sub-shielding plate connecting conductor 20150, the fixed end of the fifth elastic piece 20155 is disposed at the rear end close to the shielding plate connecting conductor, 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 bend and protrude toward the outer side of the shielding plate connecting conductor; when the bent female connector and the bent male connector are plugged into each other, the fifth elastic sheet 20155 is used for contacting with the outer wall of the bent 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 ends of the bent female contact shield are not provided with the convex hulls and the spring plate structures, as shown in fig. 36, when the bent female contact shield is matched with the shield plate connecting conductor in this embodiment, that is, the fifth spring plate 20155 is directly attached to the side walls of the bent female contact shield elastically.

Have installation arch 20158 on sub-shield plate connecting conductor 20150, installation arch 20158 is located the rear end of sub-shield plate connecting conductor 20150, 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 the shield plate connecting conductor on the insulator.

Sub-shield plate connecting conductor 20150 both sides still all have spacing arch 20156 and anticollision arch 20157, and spacing arch 20156 and anticollision arch 20157 respectively with fifth shell fragment 20155 one-to-one. The height of the limiting protrusion 20156 is smaller than the ejection height of the fifth elastic sheet 20155 in a natural state, please refer to fig. 36, when the bent female connector and the bent male connector are plugged into each other, the limiting protrusion 20156 is used for limiting the bent female contact shield to prevent the bent female contact shield from excessively pressing the fifth elastic sheet 20155. The bump 20157 is located in front of the fifth elastic piece 20155, i.e., in a 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 piece 20155 in a natural state, so as to protect the fifth elastic piece 20155; when the curved female connector and the curved male connector are plugged into each other, the curved female contact shielding piece firstly passes through the anti-collision protrusion 20157 and then contacts the fifth elastic sheet 20155, so that the curved female contact shielding piece can be prevented from directly acting on the end part of the fifth elastic sheet 20155 close to the front end of the sub-shielding plate connecting conductor 20150, and the fifth elastic sheet 20155 is damaged. Still be provided with on sub-shield plate connecting conductor 20150 and dodge hole 20159, dodge hole 20159 is 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 (6)

1. A high speed sub-connector, characterized by: the wafer signal terminal array comprises a plurality of wafers which are distributed in parallel, wherein each wafer comprises an insulator and shielding plates arranged on two sides of the insulator, a differential pair is arranged in the insulator, signal terminals in the differential pair all comprise contact ends, terminal bodies and crimping ends, the arrangement direction of the differential pair formed by the signal terminals of each wafer at the contact ends is defined as a first direction, the arrangement direction of the crimping ends of the differential pair is defined as a second direction, then the contact ends and the terminal bodies of the two signal terminals forming the differential pair are distributed in two rows along the first direction, and the crimping ends are distributed in one row along the second direction;

the shielding plates on the two sides of each wafer are bent at the crimping ends of the differential pairs to form a plurality of shielding cavities, and each shielding cavity accommodates the crimping end of one differential pair; each side shielding plate is bent towards the direction of the other side shielding plate to form a folded piece, the edge main body parts of the shielding plates at two sides and the bent folded pieces of the shielding plates enclose the shielding cavity, the folded piece is provided with a terminating structure towards one end of the circuit board, the high-speed sub-connector further comprises a conductive pinch plate arranged on the wafer crimping surface, a grounding pinhole is arranged on the conductive pinch plate, the terminating structure on the folded piece is forcibly arranged in the corresponding grounding pinhole to realize the fixed assembly of the conductive pinch plate and the shielding conduction of all shielding cavities in the sub-connector, an elastic needle protruding towards the direction of the circuit board is arranged on the conductive pinch plate, and the elastic needle is used for being connected with the grounding structure on the circuit board.

2. The high-speed sub-connector of claim 1, wherein: the signal terminal is provided with a transition area between the terminal body and the crimping end, the transition area comprises an offset part and a bending part, the offset direction of the offset part of the signal terminal forming a differential pair is opposite, and the bending direction of the bending part is opposite.

3. The high-speed sub-connector of claim 2, wherein: the transition region further comprises an extension part connecting the offset part and the bending part, and the extension part is consistent with the extension direction of the crimping end.

4. The high-speed sub-connector of claim 1, wherein: the shielding plate and the folded piece are arranged orthogonally.

5. The high-speed sub-connector of claim 1, wherein: the folded piece on each side shielding plate is in contact conduction with the other side shielding plate.

6. The high-speed sub-connector of claim 1, wherein: the conductive pinch plate is provided with signal terminal avoiding holes corresponding to the differential pairs, so that after the conductive pinch plate is installed, the crimping ends of the differential pairs penetrate out of the corresponding signal terminal avoiding holes and are electrically connected with the circuit board.

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