Second connector and connector assembly

Abstract

A second connector includes a second housing and a plug-in module. The plug-in module is at least partially disposed in the second housing, and includes a second terminal module, a second shielding sleeve at least partially surrounding the second terminal module, and a conductive member at least partially disposed on one side of the second shielding sleeve. The second terminal module includes a first mating terminal, and the first mating terminal includes a first mating portion. The conductive member is provided with a first plug-in hole, and the first plug-in hole is at least partially located at one end of the first mating portion. Compared with the prior art, the conductive member of the present application is beneficial to control the fluctuation of impedance. The present application also discloses a connector assembly including the second connector.

Description

Technical Field

[0001] This invention relates to a second connector and a connector assembly, belonging to the field of connector technology. Background Technology

[0002] Connector assemblies in related technologies typically include mating male connectors and female connectors. The female connector is generally used for mounting on a circuit board. The female connector typically includes a first housing, a plurality of female terminal modules mounted within the first housing, and a mounting plate that mates with the first housing to limit the movement of the female terminal modules. Each female terminal module includes an insulating plate, a plurality of female signal terminals fixed within the insulating plate, a plurality of female ground terminals fixed within the insulating plate, a first shielding plate located on one side of the female signal terminals and the female ground terminals, and a second shielding plate located on the other side of the female signal terminals and the female ground terminals.

[0003] The male connector includes a plurality of male signal terminals. When the male connector mates with the female connector, the female signal terminals and the male signal terminals come into contact with each other to achieve data transmission.

[0004] However, how to control the impedance of the terminals during the separation of the male connector and the female connector, and prevent impedance sudden changes, is a technical problem that those skilled in the art need to solve. Summary of the Invention

[0005] The purpose of this invention is to provide a second connector with an improved structure and a connector assembly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a second connector, comprising:

[0007] Second shell; and

[0008] A plug-in module, at least partially disposed in the second housing, the plug-in module including a second terminal module, the second terminal module including a second terminal module, a second shielding sleeve at least partially surrounding the second terminal module, and a conductive element at least partially disposed on one side of the second shielding sleeve; the second terminal module including a first mating terminal, the first mating terminal including a first mating portion, the conductive element having a first plug-in hole, the first plug-in hole being at least partially located at one end of the first mating portion.

[0009] As a further improved technical solution of the present invention, the second shielding sleeve includes a cylindrical part, the cylindrical part is provided with a hollow second cavity, the second terminal module is at least partially located in the second cavity, and the cross-sectional area of ​​the first insertion hole is smaller than the cross-sectional area of ​​the second cavity.

[0010] As a further improved technical solution of the present invention, the second shielding sleeve includes a first shielding shell and a second shielding shell, wherein the first shielding shell and the second shielding shell are separately disposed and fixed together with each other.

[0011] As a further improved technical solution of the present invention, the first shielding housing includes a first mounting end and a first extension connected to the first mounting end;

[0012] The second shielding housing includes a second mounting end and a second extension connected to the second mounting end; the first mounting end cooperates with the second mounting end, and the cylindrical portion is formed by the cooperation of the first extension and the second extension.

[0013] As a further improvement of the present invention, the conductive element includes a head and an insertion portion connected to the head, wherein the insertion portion is at least partially inserted into the second cavity.

[0014] As a further improvement of the present invention, the first extension portion is provided with a first mounting notch, and the second extension portion is provided with a second mounting notch;

[0015] The insertion part is provided with a first mounting protrusion and a second mounting protrusion on both sides; the first mounting protrusion and the second mounting protrusion are respectively inserted into the first mounting notch and the second mounting notch.

[0016] As a further improvement of the present invention, the insertion part is provided with at least one snap-fit ​​protrusion, and the second shielding sleeve is provided with a snap-fit ​​opening that engages with the snap-fit ​​protrusion.

[0017] As a further improvement of the present invention, the cylindrical part is octagonal, and the head is octagonal and matches the shape of the cylindrical part.

[0018] As a further improvement of the present invention, the first docking portion is provided with a first accommodating space, and the first insertion hole of the conductive component is connected to the first accommodating space.

[0019] As a further improvement of the present invention, the second terminal module includes a second docking terminal, the second docking terminal includes a second docking portion, and the conductive element is provided with a second insertion hole, the second insertion hole being at least partially located at one end of the second docking portion.

[0020] As a further improvement of the present invention, the cross-sectional area of ​​the second insertion hole is smaller than the cross-sectional area of ​​the second cavity.

[0021] As a further improved technical solution of the present invention, the second docking part is provided with a second accommodating space, and the second insertion hole is connected to the second accommodating space of the conductive element.

[0022] As a further improvement of the present invention, the conductive element is a metal block.

[0023] As a further improvement of the present invention, the conductive element and the second shielding sleeve are either separately configured or integrally configured.

[0024] The present invention also discloses a connector assembly comprising:

[0025] A first connector, the first connector comprising:

[0026] First shell; and

[0027] A first terminal module, at least partially disposed in the first housing; the first terminal module includes a first terminal module, the first terminal module including a first conductive terminal and a first shielding sleeve, the first conductive terminal including a first contact portion, the first contact portion including a first segment, a second segment connected to the first segment, and a third segment connected to the second segment, the second segment being located between the first segment and the third segment, the first shielding sleeve at least partially covering the first segment in the length direction of the first segment, the second segment and the third segment both extending protruding beyond the first shielding sleeve; and

[0028] The second connector is the aforementioned second connector; the second terminal module includes an insulating block, and the first mating portion of the first mating terminal is at least partially located in the insulating block;

[0029] When the first connector and the second connector are fully mated, the third segment of the first contact portion of the first conductive terminal of the first connector passes through the first insertion hole and contacts the first mating portion of the first mating terminal; the second segment of the first contact portion of the first conductive terminal is at least partially inserted into the insulating block.

[0030] As a further improvement of the present invention, when the first connector and the second connector are fully mated, the first shielding sleeve is at least partially housed in the first insertion hole.

[0031] As a further improvement of the present invention, when the first connector and the second connector are in a first incomplete mating state, at least part of the second segment of the first contact portion of the first conductive terminal enters the first insertion hole of the conductive member.

[0032] As a further improved technical solution of the present invention, when the first connector and the second connector are in a first non-complete docking state, the second segment of the first contact portion of the conductive element and the first contact portion of the first conductive terminal forms a first air gap in the radial direction, and the second segment of the first contact portion of the first conductive terminal is surrounded by the first air gap in the circumferential direction.

[0033] As a further improvement of the present invention, when the first connector and the second connector are in a second incomplete mating state, the third segment of the first contact portion of the first conductive terminal at least partially enters the first insertion hole of the conductive member.

[0034] As a further improved technical solution of the present invention, when the first connector and the second connector are in a second incomplete mating state, the third segment of the first contact portion of the conductive element and the first contact portion of the first conductive terminal forms a second air gap in the radial direction, and the third segment of the first contact portion of the first conductive terminal is surrounded by the second air gap in the circumferential direction.

[0035] Compared to the prior art, the second terminal module of the present invention includes a conductive element, which is advantageous for controlling the impedance fluctuation of the first conductive terminal passing through the conductive element when the first connector is separated from the second connector. Attached Figure Description

[0036] Figure 1 This is a perspective view of the connector assembly of the present invention in one embodiment;

[0037] Figure 2 yes Figure 1 A three-dimensional diagram from another angle;

[0038] Figure 3 yes Figure 1 A partial exploded view, in which the second connector is separated;

[0039] Figure 4 yes Figure 3 Another perspective of a partially exploded 3D view;

[0040] Figure 5 It is to remove Figure 3 Front view behind the second connector;

[0041] Figure 6 It is to remove Figure 3Rear view after the second connector;

[0042] Figure 7 yes Figure 3 Exploded perspective view of the first connector, circuit board, and fastener;

[0043] Figure 8 yes Figure 7 Another perspective of the exploded 3D view;

[0044] Figure 9 yes Figure 7 A magnified view of the circled area D;

[0045] Figure 10 yes Figure 8 A magnified view of the circled area E;

[0046] Figure 11 yes Figure 7 An exploded perspective view of the first connector, showing the mounting block separated.

[0047] Figure 12 yes Figure 11 Another perspective of a partially exploded 3D view;

[0048] Figure 13 yes Figure 12 A magnified view of the circled area F;

[0049] Figure 14 yes Figure 11 Exploded perspective view of the mounting block described herein;

[0050] Figure 15 yes Figure 14 Another perspective of the exploded 3D view;

[0051] Figure 16 yes Figure 14 A magnified view of the circled area G;

[0052] Figure 17 yes Figure 15 A magnified view of the circled area H;

[0053] Figure 18 The first connector is removed Figure 11 Further exploded perspective view of the mounting block described above;

[0054] Figure 19 yes Figure 18 Another perspective of a partially exploded 3D view;

[0055] Figure 20 It is to remove Figure 18 An exploded perspective view of the portion after the first and second retaining plates, wherein the first housing is separated;

[0056] Figure 21 yes Figure 20 Another perspective of a partially exploded 3D view;

[0057] Figure 22 yes Figure 20 A partial exploded 3D view of the installation module;

[0058] Figure 23 yes Figure 22 Another perspective of a partially exploded 3D view;

[0059] Figure 24 yes Figure 22 A front view of a first terminal module;

[0060] Figure 25 yes Figure 22 Rear view of one of the first terminal modules;

[0061] Figure 26 yes Figure 22 Left view of one of the first terminal modules;

[0062] Figure 27 yes Figure 22 Right view of one of the first terminal modules;

[0063] Figure 28 yes Figure 22 A partial exploded perspective view of one of the first terminal modules;

[0064] Figure 29 yes Figure 28 Another perspective of a partially exploded 3D view;

[0065] Figure 30 yes Figure 29 A magnified view of part I circled in the middle;

[0066] Figure 31 yes Figure 28 Further partial exploded view;

[0067] Figure 32 yes Figure 31 Another perspective of a partially exploded 3D view;

[0068] Figure 33 yes Figure 31 Partial exploded perspective view of the first terminal module in the middle section;

[0069] Figure 34 yes Figure 33 Another perspective of a partially exploded 3D view;

[0070] Figure 35 This is a further partial exploded view of 33;

[0071] Figure 36 yes Figure 35 A magnified view of the circled area J;

[0072] Figure 37 yes Figure 35 A magnified view of the circled area K;

[0073] Figure 38 yes Figure 1 A magnified view of part B circled in the middle;

[0074] Figure 39 yes Figure 2 A magnified view of the circled area C;

[0075] Figure 40 yes Figure 4 Front view of the second connector;

[0076] Figure 41 yes Figure 4 Rear view of the second connector;

[0077] Figure 42 yes Figure 3 Partial exploded perspective view of the second connector;

[0078] Figure 43 yes Figure 42 Another perspective of a partially exploded 3D view;

[0079] Figure 44 yes Figure 42 Further partial exploded view;

[0080] Figure 45 yes Figure 44 Another perspective of a partially exploded 3D view;

[0081] Figure 46 yes Figure 45 A front view of a plug-in module;

[0082] Figure 47 yes Figure 45 Rear view of one of the plug-in modules;

[0083] Figure 48 yes Figure 45 Left view of one of the plug-in modules;

[0084] Figure 49 yes Figure 45 Right view of one of the plug-in modules;

[0085] Figure 50 yes Figure 44 A partial exploded 3D view of a plug-in module;

[0086] Figure 51 yes Figure 50 Another perspective of a partially exploded 3D view;

[0087] Figure 52 It is to remove Figure 50 Exploded 3D view of the part behind the second insulating plate;

[0088] Figure 53 yes Figure 52 Another perspective of a partially exploded 3D view;

[0089] Figure 54 yes Figure 53 An exploded perspective view of a second terminal module, a second shielding sleeve, a cable, and a conductive component.

[0090] Figure 55 yes Figure 54 Another perspective of the exploded 3D view;

[0091] Figure 56 yes Figure 54 A perspective view of a first mating terminal and a second mating terminal in the first embodiment;

[0092] Figure 57 This is a perspective view of a first mating terminal and a second mating terminal in a second embodiment;

[0093] Figure 58 yes Figure 57 3D exploded view;

[0094] Figure 59 yes Figure 58 Another perspective of the exploded 3D view;

[0095] Figure 60 This is a three-dimensional schematic diagram of a first terminal module and a plug-in module in action;

[0096] Figure 61 It is along Figure 3 A schematic diagram of the cross section of the NN line;

[0097] Figure 62 It is along Figure 3 A cross-sectional view of the QQ line;

[0098] Figure 63 yes Figure 62 A magnified view of the area R within the middle frame;

[0099] Figure 64 It is along Figure 1 A cross-sectional view of the OO line;

[0100] Figure 65 yes Figure 64 A magnified view of a portion of the frame L, wherein the first connector and the second connector are in a mating state;

[0101] Figure 66 yes Figure 65 A partial enlarged view of another state, wherein the first connector and the second connector are in a transitional state during the separation process;

[0102] Figure 67 yes Figure 66 A partially enlarged view of another state, wherein the first connector and the second connector are in another transitional state during the separation process;

[0103] Figure 68 yes Figure 67 A magnified view of the area P within the middle frame;

[0104] Figure 69 This is an exploded perspective view of a portion of the first terminal module in another embodiment;

[0105] Figure 70 yes Figure 69 Another perspective of the exploded 3D view;

[0106] Figure 71 yes Figure 69 The front view of the first shielding sleeve and spring after they are assembled together;

[0107] Figure 72 This is a perspective view of the first terminal module in the second embodiment;

[0108] Figure 73 yes Figure 72 A three-dimensional diagram from another angle;

[0109] Figure 74 yes Figure 72 3D exploded view;

[0110] Figure 75 yes Figure 74 A magnified view of the circled area M;

[0111] Figure 76 This is a perspective view of the first terminal module in the third embodiment;

[0112] Figure 77 yes Figure 76 A three-dimensional diagram from another angle;

[0113] Figure 78 yes Figure 76 3D exploded view;

[0114] Figure 79 yes Figure 78Another perspective of the exploded 3D view;

[0115] Figure 80 This is a perspective view of the first terminal module in the fourth embodiment;

[0116] Figure 81 yes Figure 80 3D exploded view;

[0117] Figure 82 yes Figure 81 A magnified view of the circled area T;

[0118] Figure 83 yes Figure 80 The right view of the first terminal module, wherein the first conductive terminal and the second conductive terminal are separated by a certain distance;

[0119] Figure 84 yes Figure 75 A partial enlarged view in another embodiment;

[0120] Figure 85 yes Figure 35 An exploded perspective view of the first grounding module in another embodiment;

[0121] Figure 86 yes Figure 85 Another perspective of the exploded 3D view;

[0122] Figure 87 yes Figure 30 A perspective view of the first and second shielding portions in another embodiment;

[0123] Figure 88 yes Figure 87 Top view;

[0124] Figure 89 yes Figure 33 A three-dimensional schematic diagram of a first conductive terminal and a second conductive terminal;

[0125] Figure 90 yes Figure 89 A cross-sectional schematic diagram of the first segment of the first contact portion of the first conductive terminal and the second conductive terminal;

[0126] Figure 91 yes Figure 89 A cross-sectional schematic diagram of the second segment of the first contact portion of the first conductive terminal and the second conductive terminal;

[0127] Figure 92 yes Figure 89 A cross-sectional schematic diagram of the third section of the first contact portion of the first conductive terminal and the second conductive terminal;

[0128] Figure 93 This is a three-dimensional schematic diagram of the disassembly fixture and part of the first connector during disassembly;

[0129] Figure 94 yes Figure 93 Partial exploded 3D diagram;

[0130] Figure 95 yes Figure 33 Partial exploded perspective view of the first terminal module;

[0131] Figure 96 yes Figure 95 Further exploded view;

[0132] Figure 97 It is along Figure 56 Cross-sectional schematic diagram of the XX line;

[0133] Figure 98 yes Figure 56 A perspective view of a first mating terminal and a second mating terminal in the third embodiment;

[0134] Figure 99 It is along Figure 98 A cross-sectional schematic diagram of the YY line. Detailed Implementation

[0135] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0136] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” as used in the specification and claims of this invention are also intended to include the plural forms unless the context clearly indicates otherwise.

[0137] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this invention are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" encompasses the element following "comprising" or "including" and its equivalents, but this does not preclude the element preceding "comprising" or "including" from also including other elements. In this invention, the term "several" means two or more.

[0138] Please refer to Figures 1 to 99 As shown, this invention discloses a connector assembly including a first connector 100, a second connector 200, a circuit board 300, and a plurality of fasteners 400. In the illustrated embodiment, the first connector 100 is a board-end backplane connector for mounting on and electrically connecting to the circuit board 300. In the illustrated embodiment, the second connector 200 is a cable backplane connector configured to mate with the first connector 100. In the illustrated embodiment, the first connector 100 and the second connector 200 are inserted along a first direction A1-A1 (mating direction) to achieve signal transmission. In the illustrated embodiment, the mating direction is a front-to-back direction. The fasteners 400 are configured to secure the first connector 100 to the circuit board 300 after it has been mounted on the circuit board 300. In the illustrated embodiment, the fasteners 400 include a first screw 401 and a second screw 402.

[0139] Please combine Figures 7 to 9As shown, the circuit board 300 includes a first surface 301 (e.g., an upper surface), a second surface 302 (e.g., a lower surface) opposite to the first surface 301, a plurality of first conductive sheets 303 disposed on the first surface 301, a plurality of second conductive sheets 304 disposed on the first surface 301, and a plurality of mounting holes 305 penetrating the first surface 301 and the second surface 302 along a second direction A2-A2 (e.g., vertical direction). In the illustrated embodiment of the present invention, the plurality of first conductive sheets 303 and the plurality of second conductive sheets 304 are arranged at intervals along the first direction A1-A1 and a third direction A3-A3 (e.g., horizontal direction). In the illustrated embodiment of the present invention, the first direction A1-A1, the second direction A2-A2, and the third direction A3-A3 are mutually perpendicular. In the illustrated embodiment of the present invention, a first conductive sheet 303 and a second conductive sheet 304 disposed adjacent to each other along the third direction A3-A3 constitute a set of differential conductive sheets to improve the signal transmission rate. In the illustrated embodiment of the present invention, corresponding to a set of differential pair conductive sheets, the plurality of mounting holes 305 include a first mounting hole 3051, a second mounting hole 3052, a third mounting hole 3053, and a fourth mounting hole 3054. The first mounting hole 3051 and the third mounting hole 3053 are located on one side (e.g., the left side) of the set of differential pair conductive sheets, and the second mounting hole 3052 and the fourth mounting hole 3054 are located on the other side (e.g., the right side) of the set of differential pair conductive sheets. In the illustrated embodiment of the present invention, the first mounting hole 3051 and the second mounting hole 3052 are respectively located on both sides of the first conductive sheet 303 along the first direction A1-A1, and the first mounting hole 3051, the first conductive sheet 303, and the second mounting hole 3052 are aligned along the first direction A1-A1. Similarly, the third mounting hole 3053 and the fourth mounting hole 3054 are located on both sides of the second conductive sheet 304 along the first direction A1-A1, and the third mounting hole 3053, the second conductive sheet 304, and the fourth mounting hole 3054 are aligned along the first direction A1-A1. Furthermore, in the embodiment illustrated in the present invention, corresponding to a set of differential pair conductive sheets, the circuit board 300 also has a surrounding groove 306 located on the first surface 301 and surrounding the first conductive sheet 303 and the second conductive sheet 304. In the embodiment illustrated in the present invention, the surrounding groove 306 is approximately figure-eight shaped. The first mounting hole 3051 and the third mounting hole 3053 are located on one side of the surrounding groove 306 (e.g., the left side), and the second mounting hole 3052 and the fourth mounting hole 3054 are located on the other side of the surrounding groove 306 (e.g., the right side).In the embodiment illustrated in the present invention, the circuit board 300 further includes a first mounting through hole 3071, a second mounting through hole 3072, a first positioning through hole 3073, and a second positioning through hole 3074 that penetrate the first surface 301 and the second surface 302 along the second direction A2-A2.

[0140] Please combine Figures 11 to 37 As shown, the first connector 100 includes a first housing 1, a mounting module 2 mounted on the first housing 1, a retaining piece 3 that fixes the mounting module 2 to the first housing 1, and a mounting block 4 mounted on the bottom of the first housing 1 and cooperating with the mounting module 2.

[0141] Please combine Figure 20 as well as Figure 21 As shown, in one embodiment of the present invention, the first housing 1 is an insulating housing made of insulating material. The first housing 1 includes a first body portion 11, a first wall portion 12 extending rearward from one end (e.g., the upper end) of the first body portion 11, and a second wall portion 13 extending rearward from the other opposite end (e.g., the lower end) of the first body portion 11. The first body portion 11 has a mating surface 111 and a plurality of first terminal receiving slots 112 penetrating the mating surface 111 along the first direction A1-A1. In the illustrated embodiment of the present invention, the first terminal receiving slots 112 are arranged in a generally matrix-like manner. Each first terminal receiving slot 112 is polygonal with a side number greater than or equal to 6. In some embodiments of the present invention, the polygon is an even-numbered polygon with an even number greater than or equal to 6. In the illustrated embodiment of the present invention, the even number is equal to 8, that is, each first terminal receiving slot 112 is octagonal. In the illustrated embodiment of the present invention, each first terminal receiving slot 112 is a regular octagon.

[0142] The first wall portion 12 is provided with a plurality of first slots 121 and a first locking groove 122 communicating with the first slots 121. The second wall portion 13 is provided with a plurality of second slots 131 and a second locking groove 132 communicating with the second slots 131. The first locking groove 122 extends upward through the first wall portion 12 along the second direction A2-A2. The second locking groove 132 extends downward through the second wall portion 13 along the second direction A2-A2. The first locking groove 122 and the second locking groove 132 are used to lock the front end of the mounting module 2 to prevent the mounting module 2 from detaching from the first housing 1. The first slots 121 and the second slots 131, which are aligned with each other in the vertical direction, form a mounting slot 120 for receiving the corresponding part of the mounting module 2.

[0143] The first housing 1 is further provided with a plurality of positioning protrusions 14 extending forward from the first wall portion 12 and the second wall portion 13 along the first direction A1-A1 and protruding from the mating surface 111. The positioning protrusions 14 are configured to cooperate with the second connector 200 to achieve guidance and positioning.

[0144] Please combine Figure 18 as well as Figure 19 As shown in the illustrated embodiment of the present invention, the retaining plate 3 is made of a metal material. The retaining plate 3 includes a first retaining plate 31 and a second retaining plate 32. The first retaining plate 31 is provided with a plurality of first retaining grooves 311, and the second retaining plate 32 is provided with a plurality of second retaining grooves 321. The first retaining plate 31 and the second retaining plate 32 are perpendicular to each other.

[0145] Please combine Figure 22 as well as Figure 23 As shown in the illustrated embodiment of the present invention, the mounting module 2 includes a plurality of first terminal modules 21, a first mounting plate 22 located on one side of the plurality of first terminal modules 21, and a second mounting plate 23 located on the other side of the plurality of first terminal modules 21. In other words, the plurality of first terminal modules 21 are sandwiched between the first mounting plate 22 and the second mounting plate 23 along the third direction A3-A3. In one embodiment of the present invention, both the first mounting plate 22 and the second mounting plate 23 are metal mounting plates, that is, both the first mounting plate 22 and the second mounting plate 23 are made of metal material to improve shielding and increase structural strength.

[0146] In the embodiments illustrated in this invention, each first terminal module 21 is identical, and the following description will only take one of the first terminal modules 21 as an example.

[0147] Please combine Figures 28 to 35As shown, the first terminal module 21 includes a plurality of first terminal modules 211, a first grounding module 212 located on a first side (e.g., the outer side) of each first terminal module 211, a second grounding module 213 located on a second side (e.g., the inner side) of each first terminal module 211, a first shielding sleeve 214 sleeved on one end of the first grounding module 212 and the second grounding module 213, a first shielding plate 215 located on one side of the first terminal module 211, the first grounding module 212, and the second grounding module 213, a second shielding plate 216 located on the other side of the first terminal module 211, the first grounding module 212, and the second grounding module 213, and a first insulating plate 219 fixed on the first terminal module 211, the first grounding module 212, the second grounding module 213, the first shielding plate 215, and the second shielding plate 216. The first shielding plate 215 is located on a third side (e.g., the left side) of the first terminal module 211, and the second shielding plate 216 is located on a fourth side (e.g., the right side) of the first terminal module 211.

[0148] In one embodiment of the present invention, the first insulating plate 219 is formed and fixed on the first terminal module 211, the first grounding module 212, the second grounding module 213, the first shielding plate 215, and the second shielding plate 216. The first insulating plate 219 includes a first locking protrusion 2191 at the top of the first insulating plate 219, a first retaining protrusion 2192 at the top of the first insulating plate 219 and at the rear end of the first locking protrusion 2191, a second locking protrusion 2193 at the bottom of the first insulating plate 219, and a second retaining protrusion 2194 at the rear end of the first insulating plate 219. The first insulating plate 219 is configured to be inserted into a corresponding mounting slot 120. The first locking protrusion 2191 and the second locking protrusion 2193 are respectively locked into the first locking groove 122 and the second locking groove 132. The first retaining groove 311 of the first retaining piece 31 is engaged with the first retaining protrusion 2192, and the second retaining groove 321 of the second retaining piece 32 is engaged with the second retaining protrusion 2194.

[0149] Each first terminal module 211 includes a first conductive terminal S1, a second conductive terminal S2, a first insulating isolation block 2117 at least partially fixed to the first conductive terminal S1, a second insulating isolation block 2118 at least partially fixed to the second conductive terminal S2, a first shielding sleeve 2112 sleeved on the first insulating isolation block 2117 and located around the first conductive terminal S1, a second shielding sleeve 2113 sleeved on the second insulating isolation block 2118 and located around the second conductive terminal S2, and a conductive metal block 2111 sleeved on the first shielding sleeve 2112 and the second shielding sleeve 2113.

[0150] In the embodiment illustrated in the present invention, the first shielding sleeve 2112 includes a generally cylindrical first sleeve portion 21121 and a first outwardly flanged portion 21122 extending outwardly from the rear end of the first sleeve portion 21121. The first sleeve portion 21121 is provided with first slots 2112a located on both sides. Please refer to... Figure 33 as well as Figure 34 As shown, the first slot 2112a penetrates the first end face 21123 of the first shielding sleeve 2112 along the first direction A1-A1, giving the first shielding sleeve 2112 a certain elastic deformation capability. The first conductive terminal S1 at least partially protrudes from the first shielding sleeve 2112. Similarly, the second shielding sleeve 2113 includes a generally cylindrical second sleeve portion 21131 and a second outwardly flanged portion 21132 that flanges outward from the rear end of the second sleeve portion 21131. The second sleeve portion 21131 is provided with second slots 2113a located on both sides. Please refer to... Figure 33 as well as Figure 34 As shown, the second slot 2113a penetrates the second end face 21133 of the second shielding sleeve 2113 along the first direction A1-A1, giving the second shielding sleeve 2113 a certain elastic deformation capability. The second conductive terminal S2 at least partially protrudes from the second shielding sleeve 2113. In the embodiment illustrated in the present invention, both the first shielding sleeve 2112 and the second shielding sleeve 2113 are made of metal material.

[0151] In one embodiment of the present invention, the conductive metal block 2111 is sleeved on the first shielding sleeve 2112 and the second shielding sleeve 2113 to form the first terminal module 211 into a whole. The first outwardly flared portion 21122 and the second outwardly flared portion 21132 are both in contact with the conductive metal block 2111.

[0152] Please combine Figure 35As shown, each conductive terminal on the first terminal module 211 includes a first fixing portion 211a, a first contact portion 211b connected to one end of the first fixing portion 211a, and a first tail portion 211c connected to the other end of the first fixing portion 211a. In the embodiment illustrated in the present invention, the first fixing portion 211a is bent. The first contact portion 211b is needle-shaped and perpendicular to the first tail portion 211c. The first shielding sleeve 2112 is fitted onto a portion of the first contact portion 211b of the first conductive terminal S1. The second shielding sleeve 2113 is fitted onto a portion of the first contact portion 211b of the second conductive terminal S2. Another portion of the first contact portion 211b of the first conductive terminal S1 protrudes through the first shielding sleeve 2112. Another portion of the first contact portion 211b of the second conductive terminal S2 protrudes through the second shielding sleeve 2113. Please refer to... Figure 36 As shown in the illustrated embodiment of the present invention, the first tail portion 211c is constricted relative to the first fixing portion 211a. The first tail portion 211c is provided with a first arcuate portion 211c1 located at its bottom and a first limiting protrusion 211c2 protruding along the first direction A1-A1.

[0153] Please combine Figure 67 , Figure 68 as well as Figures 89 to 92 As shown in the illustrated embodiment of the present invention, the first contact portion 211b of the first conductive terminal S1 includes a first segment 211b1 covered by the first shielding sleeve 2112, a second segment 211b2 connected to the first segment 211b1 and protruding from the first shielding sleeve 2112, and a third segment 211b3 connected to the second segment 211b2. The second segment 211b2 is connected between the first segment 211b1 and the third segment 211b3. The first segment 211b1, the second segment 211b2, and the third segment 211b3 are arranged sequentially along the first direction A1-A1. The third segment 211b3 is configured to be electrically connected to the second connector 200. Please refer to... Figures 90 to 92As shown in the illustrated embodiment of the present invention, each first terminal module 211 further includes a first insulating isolation block 2117 fixed to the first segment 211b1 of the first conductive terminal S1 and covered by the first shielding sleeve 2112, and a second insulating isolation block 2118 fixed to the first segment 211b1 of the second conductive terminal S2 and covered by the second shielding sleeve 2113. By providing the first insulating isolation block 2117, electrical contact between the first shielding sleeve 2112 and the first segment 211b1 of the first conductive terminal S1 can be avoided, thereby preventing the risk of a short circuit. By providing the second insulating isolation block 2118, electrical contact between the second shielding sleeve 2113 and the first segment 211b1 of the second conductive terminal S2 can be avoided, thereby preventing the risk of a short circuit. Furthermore, the first insulating isolation block 2117, covering the first segment 211b1 of the first conductive terminal S1, can also control the impedance of the first segment 211b1 of the first conductive terminal S1. Similarly, the second insulating block 2118, which wraps around the first segment 211b1 of the second conductive terminal S2, can also control the impedance of the first segment 211b1 of the second conductive terminal S2. In the embodiment illustrated in the present invention, the cross-sectional areas of the first segment 211b1 along the second direction A2-A2, the second segment 211b2 along the second direction A2-A2, and the third segment 211b3 along the second direction A2-A2 are all different to facilitate impedance control. Specifically, in the embodiment illustrated in the present invention, the cross-sectional area of ​​the second segment 211b2 along the second direction A2-A2 is larger than the cross-sectional area of ​​the third segment 211b3 along the second direction A2-A2, and the cross-sectional area of ​​the third segment 211b3 along the second direction A2-A2 is larger than the cross-sectional area of ​​the first segment 211b1 along the second direction A2-A2. This design helps to avoid impedance abrupt changes along the length of the first contact portion 211b of the first conductive terminal S1 when the first connector 100 and the second connector 200 are disconnected (details to follow).

[0154] The first contact portion 211b of the second conductive terminal S2 is the same as the first contact portion 211b of the first conductive terminal S1, and will not be described again in this invention.

[0155] In the embodiment illustrated in the present invention, the first conductive terminal S1 and the second conductive terminal S2 on each first terminal module 211 form a pair of differential signal terminals to improve the signal transmission rate. The first conductive terminal S1 and the second conductive terminal S2 on each first terminal module 211 are arranged side by side along the third direction A3-A3.

[0156] Please combine Figure 35 As shown in the illustrated embodiment of the present invention, the first grounding module 212 includes a plurality of first grounding plates 2121. The plurality of first grounding plates 2121 are stacked along the third direction A3-A3. Those skilled in the art will understand that in the illustrated embodiment of the present invention, the stacking of the plurality of first grounding plates 2121 means that they are arranged adjacent to each other along the third direction A3-A3, i.e., stacked left and right. Each first grounding plate 2121 includes a first intermediate portion 2121a, a first mating portion 2121b connected to one end of the first intermediate portion 2121a, and a first abutting portion 2121c connected to the other end of the first intermediate portion 2121a. In the illustrated embodiment of the present invention, the first intermediate portion 2121a is bent, and the first mating portion 2121b and the first abutting portion 2121c are perpendicular to each other. The first intermediate portion 2121a has at least one first through hole 2121a1 extending through the first intermediate portion 2121a along the third direction A3-A3. In the embodiment illustrated in the present invention, the plurality of first grounding plates 2121 are all identical, which helps to save costs.

[0157] Similarly, the second grounding module 213 includes a plurality of second grounding plates 2131. The plurality of second grounding plates 2131 are stacked along the third direction A3-A3. Each second grounding plate 2131 includes a second intermediate portion 2131a, a second mating portion 2131b connected to one end of the second intermediate portion 2131a, and a second abutting portion 2131c connected to the other end of the second intermediate portion 2131a. In the embodiment illustrated in the present invention, the second intermediate portion 2131a is bent, and the second mating portion 2131b and the second abutting portion 2131c are perpendicular to each other. In the embodiment illustrated in the present invention, the plurality of second grounding plates 2131 are all identical, thereby saving costs. After assembly, the conductive metal block 2111 is located between the first mating portion 2121b and the second mating portion 2131b, and is in contact with at least one of the first mating portion 2121b and the second mating portion 2131b to improve the grounding shielding effect. In one embodiment of the present invention, the conductive metal block 2111 is sandwiched between the first mating part 2121b and the second mating part 2131b, and is in contact with both the first mating part 2121b and the second mating part 2131b.

[0158] Please combine Figure 13 as well as Figures 30 to 32As shown in the illustrated embodiment of the present invention, the first shielding plate 215 includes a plurality of first shielding sheets 2151. The plurality of first shielding sheets 2151 are separately arranged. Each first shielding sheet 2151 is located on one side of the first terminal module 211 along the third direction A3-A3. The first shielding sheet 2151 has a first bent portion 2151a, a first extension portion 2151b connected to one end of the first bent portion 2151a, and a first shielding portion 2151c connected to the other end of the first bent portion 2151a. In the embodiment illustrated in the present invention, the first shielding portion 2151c includes a first sidewall 2151c1, a first bent wall 2151c2 formed by bending one end of the first sidewall 2151c1, a second bent wall 2151c3 formed by bending the other end of the first sidewall 2151c1, a first mounting foot 2151c4 integrally extending downward from the first bent wall 2151c2, and a second mounting foot 2151c5 integrally extending downward from the second bent wall 2151c3. The first sidewall 2151c1 has a first opening 2151c6 extending downward through the first sidewall 2151c1. The first shielding sheet 2151 shields one side of the first conductive terminal S1 and the second conductive terminal S2 along the third direction A3-A3, and the first shielding sheet 2151 is in contact with the first grounding module 212 and the second grounding module 213. Specifically, in the embodiment illustrated in the present invention, the first curved portion 2151a of the first shielding sheet 2151 is provided with at least one second through hole 2151a1 extending through the first curved portion 2151a along the third direction A3-A3. In the embodiment illustrated in the present invention, the first shielding portion 2151c is in contact with the first abutting portion 2121c. Those skilled in the art will understand that, in the embodiment illustrated in the present invention, since each first shielding portion 2151c of the first shielding sheet 2151 includes a first sidewall 2151c1, a first bent wall 2151c2, a second bent wall 2151c3, a first mounting foot 2151c4, and a second mounting foot 2151c5, a single-piece first shielding plate 215 cannot meet the requirements for manufacturing feasibility. Therefore, the first shielding plate 215 of the present invention is provided with a plurality of first shielding sheets 2151. With this configuration, the first shielding portion 2151c of each first shielding sheet 2151 can be designed and manufactured using the material of the first shielding sheet 2151 itself, avoiding the influence of other first shielding sheets 2151. In the embodiment illustrated in the present invention, the first curved portion 2151a and the first extension portion 2151b of all first shielding sheets 2151 are located in the same plane, and the first curved portions 2151a of all first shielding sheets 2151 are stacked in this plane, and the first extension portions 2151b of all first shielding sheets 2151 are stacked in this plane.In the embodiment illustrated in the present invention, the first curved portion 2151a of any two adjacent first shielding plates 2151 is provided with a first dovetail groove 2151a2 and a first dovetail protrusion 2151a3 that cooperate with each other, so as to be combined into a whole.

[0159] Please combine Figure 31As shown in the illustrated embodiment of the present invention, the second shielding plate 216 includes a plurality of second shielding sheets 2161. The plurality of second shielding sheets 2161 are separately arranged. Each second shielding sheet 2161 is located on the other side of the first terminal module 211 along the third direction A3-A3. The second shielding sheet 2161 has a second bent portion 2161a, a second extension portion 2161b connected to one end of the second bent portion 2161a, and a second shielding portion 2161c connected to the other end of the second bent portion 2161a. In the embodiment illustrated in the present invention, the second shielding portion 2161c includes a second sidewall 2161c1, a third bent wall 2161c2 formed by bending one end of the second sidewall 2161c1, a fourth bent wall 2161c3 formed by bending the other end of the second sidewall 2161c1, a third mounting foot 2161c4 integrally extending downward from the third bent wall 2161c2, and a fourth mounting foot 2161c5 integrally extending downward from the fourth bent wall 2161c3. The second sidewall 2161c1 has a second opening 2161c6 extending downward through the second sidewall 2161c1. The second shielding sheet 2161 shields the other side of the first conductive terminal S1 and the second conductive terminal S2 along the third direction A3-A3, and the second shielding sheet 2161 is in contact with the first grounding module 212 and the second grounding module 213. Specifically, in the embodiment illustrated in the present invention, the second curved portion 2161a of the second shielding sheet 2161 is provided with at least one third through hole 2161a1 extending through the second curved portion 2161a along the third direction A3-A3. In the embodiment illustrated in the present invention, the second shielding portion 2161c contacts the first abutting portion 2121c. Those skilled in the art will understand that, in the embodiment illustrated in the present invention, since each second shielding portion 2161c of the second shielding sheet 2161 includes a second sidewall 2161c1, a third bent wall 2161c2, a fourth bent wall 2161c3, a third mounting foot 2161c4, and a fourth mounting foot 2161c5, a single-piece second shielding plate 216 cannot meet the requirements for manufacturing feasibility. Therefore, the second shielding plate 216 of the present invention is provided with a plurality of second shielding sheets 2161. With this configuration, the second shielding portion 2161c of each second shielding sheet 2161 can be designed and manufactured using the material of the second shielding sheet 2161 itself, avoiding the influence of other second shielding sheets 2161. In the embodiment illustrated in the present invention, the second curved portions 2161a and the second extension portions 2161b of all second shielding sheets 2161 are located in the same plane, and the second curved portions 2161a of all second shielding sheets 2161 are stacked in this plane, and the second extension portions 2161b of all second shielding sheets 2161 are stacked in this plane.In the embodiment illustrated in the present invention, any two adjacent second shielding plates 2161 have a second curved portion 2161a with a second dovetail groove 2161a2 and a second dovetail protrusion 2161a3 that cooperate with each other to be combined into a whole.

[0160] Please combine Figure 31 as well as Figure 35 As shown in the illustrated embodiment of the present invention, the second through hole 2151a1, the first through hole 2121a1, and the third through hole 2161a1 are interconnected and aligned with each other along the third direction A3-A3. The first terminal module 21 includes a first connecting element 217 filled in the second through hole 2151a1, the first through hole 2121a1, and the third through hole 2161a1 to fix the first shielding plate 2151, the first grounding plate 2121, and the second shielding plate 2161 together.

[0161] Please combine Figure 85 as well as Figure 86 As shown, in another embodiment of the first grounding module 212 of the present invention, any two adjacent first grounding plates 2121 are provided with mutually cooperating first mounting protrusions 2121a2 and mounting grooves 2121a4 to connect all the first grounding plates 2121 into a whole. The mounting grooves 2121a4 are located on the back side of the first mounting protrusions 2121a2, making all the first grounding plates 2121 structurally identical to save costs. In addition, the first grounding plate 2121 adjacent to the first shielding plate 215 is provided with a second mounting protrusion 2121a3 that cooperates with the second through hole 2151a1. The first grounding plate 2121 adjacent to the second shielding plate 216 is provided with a third mounting protrusion 2121a5 that cooperates with the third through hole 2161a1. With this configuration, the first shielding plate 2151, the first grounding plate 2121, and the second shielding plate 2161 can be combined together.

[0162] Please combine Figure 62 as well as Figure 63As shown in the illustrated embodiment of the present invention, the first shielding plate 2151, a plurality of first grounding plates 2121 of the first grounding module 212, a plurality of second grounding plates 2131 of the second grounding module 213, and the second shielding plate 2161 together form a shielding cavity 20 surrounding the first terminal module 211 to improve the shielding effect. Specifically, the shielding cavity 20 is arranged around the first fixing portion 211a of the first conductive terminal S1 and the first fixing portion 211a of the second conductive terminal S2 along the length direction of the first conductive terminal S1 and the second conductive terminal S2 to improve the shielding effect and enhance the quality of signal transmission. In the illustrated embodiment of the present invention, by providing a plurality of first grounding plates 2121 and a plurality of second grounding plates 2131, the thickness of the stacked plurality of first grounding plates 2121 and the plurality of second grounding plates 2131 can be used to form the shielding cavity 20, which facilitates the adjustment of the shielding cavity 20 by adjusting the number and thickness of the first grounding plates 2121 and the second grounding plates 2131.

[0163] Please combine Figures 33 to 37 As shown, the first terminal module 211 further includes a first elastic abutment foot 2114 and a second elastic abutment foot 2115. The first elastic abutment foot 2114 is made of metal. The first elastic abutment foot 2114 is integrally formed with or separate from the first conductive terminal S1. The second elastic abutment foot 2115 is integrally formed with or separate from the second conductive terminal S2. In the embodiment illustrated in the present invention, the first elastic abutment foot 2114 is separate from and fixed together with the first conductive terminal S1. The second elastic abutment foot 2115 is separate from and fixed together with the second conductive terminal S2. In other words, the first elastic abutment foot 2114 and the first conductive terminal S1 are two pieces and fixed together; the second elastic abutment foot 2115 and the second conductive terminal S2 are two pieces and fixed together.

[0164] In the embodiment illustrated in the present invention, the first tail portion 211c of the first conductive terminal S1 and the first tail portion 211c of the second conductive terminal S2 both extend downward and protrude from the first grounding module 212 and the second grounding module 213. In other words, the first tail portion 211c of the first conductive terminal S1 and the first tail portion 211c of the second conductive terminal S2 both extend downward and protrude from the shielding cavity 20.

[0165] Specifically, in the embodiment illustrated in the present invention, the first elastic abutment foot 2114 includes a first mounting piece 2114a, a second mounting piece 2114b opposite to the first mounting piece 2114a, a first connecting portion 2114c connecting one side of the first mounting piece 2114a and one side of the second mounting piece 2114b, a second connecting portion 2114d connected to the first connecting portion 2114c, a first abutment arm 2114e connected to the second connecting portion 2114d, and a first end portion 2114f connected to the first abutment arm 2114e and located at the free end of the first abutment arm 2114e. Specifically, the first end portion 2114f includes a first connecting portion 2114f1 connected to the first abutment arm 2114e and a first tail end 2114f2 connected to the first connecting portion 2114f1 and bent outward from the first connecting portion 2114f1. In the illustrated embodiment of the present invention, the first end portion 2114f extends close to the first connecting portion 2114c. When the first resilient abutment foot 2114 is mounted on the circuit board 300, the first connecting portion 2114f1 of the first end portion 2114f contacts the first connecting portion 2114c to improve performance. In the illustrated embodiment of the present invention, along the second direction A2-A2, the first mounting piece 2114a protrudes upward from the second mounting piece 2114b. The first mounting piece 2114a and the second mounting piece 2114b are spaced apart along the third direction A3-A3, and the first resilient abutment foot 2114 includes a first receiving groove 2114g located between the first mounting piece 2114a and the second mounting piece 2114b along the third direction A3-A3. The first connecting portion 2114c is located at one end of the first receiving groove 2114g. The first mounting piece 2114a has a first arcuate surface 2114a1 at its bottom, and the second mounting piece 2114b has a second arcuate surface 2114b1 at its bottom. The second connecting portion 2114d has a first recessed groove 2114d1, and both the first arcuate surface 2114a1 and the second arcuate surface 2114b1 at least partially protrude into the first recessed groove 2114d1. The first arcuate surface 2114a1 and the second arcuate surface 2114b1 are configured to abut against the first connecting portion 2114c along the second direction A2-A2, so as to limit excessive deformation of the first abutting arm 2114e when elastic deformation occurs. In the embodiment illustrated in the present invention, the first abutting arm 2114e is generally V-shaped and has a first pressing portion 2114e1 at its bottom. The first pressing portion 2114e1 is configured to elastically abut against the first conductive sheet 303. In the embodiment illustrated in the present invention, the first pressing part 2114e1 is fixed to the first conductive sheet 303 without welding.

[0166] Specifically, in the embodiment illustrated in the present invention, the second elastic abutment foot 2115 includes a third mounting piece 2115a, a fourth mounting piece 2115b opposite to the third mounting piece 2115a, a third connecting portion 2115c connecting one side of the third mounting piece 2115a and one side of the fourth mounting piece 2115b, a fourth connecting portion 2115d connected to the third connecting portion 2115c, a second abutment arm 2115e connected to the fourth connecting portion 2115d, and a second end portion 2115f connected to the second abutment arm 2115e and located at the free end of the second abutment arm 2115e. Specifically, the second end portion 2115f includes a second connecting portion 2115f1 connected to the second abutment arm 2115e and a second tail end 2115f2 connected to the second connecting portion 2115f1 and bent outward from the second connecting portion 2115f1. In the illustrated embodiment of the present invention, the second end portion 2115f extends close to the second connecting portion 2115c. When the second resilient abutment foot 2115 is mounted on the circuit board 300, the second connecting portion 2115f1 of the second end portion 2115f contacts the second connecting portion 2115c to improve performance. In the illustrated embodiment of the present invention, along the second direction A2-A2, the third mounting piece 2115a protrudes upward from the fourth mounting piece 2115b. The third mounting piece 2115a and the fourth mounting piece 2115b are spaced apart along the third direction A3-A3, and the second resilient abutment foot 2115 includes a second receiving groove 2115g located between the third mounting piece 2115a and the fourth mounting piece 2115b along the third direction A3-A3. The third connecting portion 2115c is located at one end of the second receiving groove 2115g. The third mounting piece 2115a has a third arcuate surface 2115a1 at its bottom, and the fourth mounting piece 2115b has a fourth arcuate surface 2115b1 at its bottom. The fourth connecting portion 2115d has a second recessed groove 2115d1, and both the third arcuate surface 2115a1 and the fourth arcuate surface 2115b1 at least partially protrude into the second recessed groove 2115d1. The third arcuate surface 2115a1 and the fourth arcuate surface 2115b1 are configured to abut against the third connecting portion 2115c along the second direction A2-A2, so as to limit excessive deformation of the second abutting arm 2115e when elastic deformation occurs. In the embodiment illustrated in the present invention, the second abutting arm 2115e is generally V-shaped and has a second abutting portion 2115e1 at its bottom. The second abutting portion 2115e1 is configured to elastically abut against the second conductive sheet 304. In the illustrated embodiment of the present invention, the second abutting portion 2115e1 and the second conductive sheet 304 are fixed without welding.

[0167] During assembly, the first tail portion 211c of the first conductive terminal S1 is received in the first receiving groove 2114g of the first elastic abutment foot 2114. The first arcuate portion 211c1 of the first conductive terminal S1 is configured to abut against the first connecting portion 2114c along the second direction A2-A2 to limit excessive deformation of the first abutment arm 2114e when elastic deformation occurs. The first limiting protrusion 211c2 of the first conductive terminal S1 abuts against the first connecting portion 2114c to serve as a mounting limit. The first mounting piece 2114a and the second mounting piece 2114b are located on both sides of the first tail portion 211c and are in contact with the first tail portion 211c. In one embodiment of the present invention, at least one of the first mounting piece 2114a and the second mounting piece 2114b is fixed to the first tail portion 211c (e.g., by welding).

[0168] Similarly, the first tail portion 211c of the second conductive terminal S2 is received in the second receiving groove 2115g of the second elastic abutment foot 2115. The first arcuate portion 211c1 of the second conductive terminal S2 is configured to abut against the third connecting portion 2115c along the second direction A2-A2 to limit excessive deformation of the second abutment arm 2115e when elastic deformation occurs. The first limiting protrusion 211c2 of the second conductive terminal S2 abuts against the third connecting portion 2115c to serve as a mounting limit. The third mounting piece 2115a and the fourth mounting piece 2115b are located on both sides of the first tail portion 211c and are in contact with the first tail portion 211c. In one embodiment of the invention, at least one of the third mounting piece 2115a and the fourth mounting piece 2115b is fixed to the first tail portion 211c (e.g., by welding).

[0169] Please combine Figure 13 as well as Figure 30As shown, in one embodiment of the present invention, corresponding to the first abutting arm 2114e and the second abutting arm 2115e, the first shielding portion 2151c of the first shielding plate 215 and the second shielding portion 2161c of the second shielding plate 216 form a shielding cavity 218. The first abutting arm 2114e and the second abutting arm 2115e are at least partially located in the shielding cavity 218. Specifically, the first sidewall 2151c1 and the second sidewall 2161c1 are disposed opposite to each other; the first bent wall 2151c2 and the third bent wall 2161c2 extend opposite to each other to form a third sidewall 2171c1; the first bent wall 2151c2 and the third bent wall 2161c2 extend face-to-face and are close to each other, and a third opening 2171c2 is provided between the first bent wall 2151c2 and the third bent wall 2161c2; the second bent wall 2151c3 and the fourth bent wall 2161c3 extend opposite to each other to form a fourth sidewall 2172c3; the second bent wall 2151c3 and the fourth bent wall 2161c3 extend face-to-face and are close to each other, and a fourth opening 2172c4 is provided between the second bent wall 2151c3 and the fourth bent wall 2161c3. The third sidewall 2171c1 and the fourth sidewall 2172c3 are disposed opposite to each other. The shielding cavity 218 is formed by the first side wall 2151c1, the second side wall 2161c1, the third side wall 2171c1 and the fourth side wall 2172c3, so as to improve the shielding effect on the first abutting arm 2114e and the second abutting arm 2115e.

[0170] Please combine Figure 87 as well as Figure 88 And refer to Figure 30As shown, in another embodiment of the present invention, corresponding to the first abutting arm 2114e and the second abutting arm 2115e, the first shielding portion 2151c of the first shielding plate 215 and the second shielding portion 2161c of the second shielding plate 216 form a shielding cavity 218. The first abutting arm 2114e and the second abutting arm 2115e are at least partially located in the shielding cavity 218. Specifically, the first sidewall 2151c1 and the second sidewall 2161c1 are disposed opposite to each other; the first bent wall 2151c2 and the third bent wall 2161c2 extend opposite to each other to form a third sidewall 2171c1; the first bent wall 2151c2 and the third bent wall 2161c2 extend face-to-face and overlap each other; the second bent wall 2151c3 and the fourth bent wall 2161c3 extend opposite to each other to form a fourth sidewall 2172c3; the second bent wall 2151c3 and the fourth bent wall 2161c3 extend face-to-face and overlap each other. The third sidewall 2171c1 and the fourth sidewall 2172c3 are disposed opposite to each other. The shielding cavity 218 is formed by the first sidewall 2151c1, the second sidewall 2161c1, the third sidewall 2171c1, and the fourth sidewall 2172c3 in a surrounding and seamless manner to improve the shielding effect on the first abutment arm 2114e and the second abutment arm 2115e. In this case, the mounting block 4 can be omitted. When the first mounting foot 2151c4, the second mounting foot 2151c5, the third mounting foot 2161c4, and the fourth mounting foot 2161c5 are mounted on the circuit board 300, the bottom surfaces of the first sidewall 2151c1, the second sidewall 2161c1, the third sidewall 2171c1, and the fourth sidewall 2172c3 can be as close as possible to the first surface 301 of the circuit board 300 to minimize gaps and thus improve the shielding effect. Preferably, the bottom surfaces of the first sidewall 2151c1, the second sidewall 2161c1, the third sidewall 2171c1, and the fourth sidewall 2172c3 are in contact with the first surface 301 of the circuit board 300 to further improve the shielding effect.

[0171] Since both the first tail portion 211c of the first conductive terminal S1 and the first tail portion 211c of the second conductive terminal S2 extend downward and protrude from the shielding cavity 20, the first terminal module 21 is provided with the shielding cavity 218 to improve the shielding effect on the first tail portion 211c of the first conductive terminal S1 and the first tail portion 211c of the second conductive terminal S2. Both the first tail portion 211c of the first conductive terminal S1 and the first tail portion 211c of the second conductive terminal S2 are located within the shielding cavity 218.

[0172] The first mounting pin 2151c4, the second mounting pin 2151c5, the third mounting pin 2161c4, and the fourth mounting pin 2161c5 are each provided with a fisheye hole, so that the first mounting pin 2151c4, the second mounting pin 2151c5, the third mounting pin 2161c4, and the fourth mounting pin 2161c5 all have a certain degree of elasticity. The first mounting pin 2151c4, the second mounting pin 2151c5, the third mounting pin 2161c4, and the fourth mounting pin 2161c5 are respectively used to press into the first mounting hole 3051, the second mounting hole 3052, the third mounting hole 3053, and the fourth mounting hole 3054 to achieve electrical connection with the circuit board 300. The first mounting pin 2151c4, the second mounting pin 2151c5, the third mounting pin 2161c4, and the fourth mounting pin 2161c5 are located on both sides of the first tail portion 211c of the first conductive terminal S1 and the first tail portion 211c of the second conductive terminal S2. When the first elastic abutment pin 2114 and the second elastic abutment pin 2115 elastically abut against the circuit board 300, the reliability of the contact between the first elastic abutment pin 2114 and the second elastic abutment pin 2115 and the circuit board 300 can be guaranteed.

[0173] The first shielding sleeve 214 is sleeved on the first contact portion 211b of the first conductive terminal S1, the first shielding sleeve 2112, the first contact portion 211b of the second conductive terminal S2, and the second shielding sleeve 2113. The first shielding sleeve 214 has a shielding space 2140, in which the first contact portion 211b of the first conductive terminal S1, the first shielding sleeve 2112, the first contact portion 211b of the second conductive terminal S2, and the second shielding sleeve 2113 are at least partially located, thus forming a good shield for the first contact portions 211b of the first conductive terminal S1 and the first contact portions 211b of the second conductive terminal S2. Furthermore, the first mating portion 2121b of the first grounding module 212, the second mating portion 2131b of the second grounding module 213, the first extension portion 2151b of the first shielding plate 215, and the second extension portion 2161b of the second shielding plate 216 all contact the first shielding sleeve 214 to improve the shielding effect. In one embodiment of the present invention, the first mating portion 2121b of the first grounding module 212 and the second mating portion 2131b of the second grounding module 213 are located on the outer and / or inner sides of the first shielding sleeve 214. Both the first mating portion 2121b of the first grounding module 212 and the second mating portion 2131b of the second grounding module 213 are welded and fixed to the first shielding sleeve 214. The first extension portion 2151b of the first shielding plate 215 and the second extension portion 2161b of the second shielding plate 216 are located on the outer and / or inner sides of the first shielding sleeve 214. Both the first extension portion 2151b of the first shielding plate 215 and the second extension portion 2161b of the second shielding plate 216 are welded and fixed to the first shielding sleeve 214.

[0174] Please combine Figures 31 to 35As shown in the illustrated embodiment of the present invention, the first shielding sleeve 214 includes a first shielding shell 214a and a second shielding shell 214b, which are fixed together (e.g., by welding). The first shielding shell 214a includes a first end 214a1 and a first extension 214a2 connected to the first end 214a1. The second shielding shell 214b includes a second end 214b1 and a second extension 214b2 connected to the second end 214b1. The first end 214a1 and the second end 214b1 mate with each other. The first end 214a1 and the second end 214b1 mate to form a quadrilateral fitting portion 2144. The first extension 214a2 and the second extension 214b2 mate to form a polygonal cylindrical portion 2143 with a number of sides greater than or equal to 6. In some embodiments of the present invention, the polygon is an even-numbered polygon, wherein the even number is greater than or equal to 6. In the embodiment illustrated in the present invention, the even number is 8, that is, the cylindrical portion 2143 is octagonal. Accordingly, the cylindrical portion 2143 is provided with a hollow octagonal first cavity 2141. In the embodiment illustrated in the present invention, the octagonal cylindrical portion 2143 is a regular octagonal cylindrical portion 2143. The octagonal first cavity 2141 is a regular octagonal cavity. The sleeve portion 2144 includes a first outer surface 21441 (e.g., upper surface), a second outer surface 21442 (e.g., lower surface) opposite to the first outer surface 21441, a third outer surface 21443 (e.g., left surface), and a fourth outer surface 21444 opposite to the third outer surface 21443. The sleeve portion 2144 is formed by the first outer surface 21441, the third outer surface 21443, the second outer surface 21442, and the fourth outer surface 21444 in sequence. The first outer surface 21441 and the second outer surface 21442 are located in a horizontal plane, and the second outer surface 21442 and the fourth outer surface 21444 are located in a vertical plane.

[0175] The cylindrical portion 2143 includes a first outer wall 21431 (e.g., upper wall), a second outer wall 21432 (e.g., lower wall) opposite to the first outer wall 21431, a third outer wall 21433 (e.g., left side wall), a fourth outer wall 21434 (e.g., right side wall) opposite to the third outer wall 21433, a first inclined wall 21435 (e.g., upper left inclined wall) connecting the first outer wall 21431 and the third outer wall 21433, a second inclined wall 21436 (e.g., lower left inclined wall) connecting the third outer wall 21433 and the second outer wall 21432, a third inclined wall 21437 (e.g., lower right inclined wall) connecting the second outer wall 21432 and the fourth outer wall 21434, and a fourth inclined wall 21438 (e.g., upper right inclined wall) connecting the fourth outer wall 21434 and the first outer wall 21431. The cylindrical portion 2143 is formed by the first outer wall 21431, the first inclined wall 21435, the third outer wall 21433, the second inclined wall 21436, the second outer wall 21432, the third inclined wall 21437, the fourth outer wall 21434, and the fourth inclined wall 21438 in sequence.

[0176] In the embodiment illustrated in the present invention, the first outer wall 21431 is coplanar with the first outer surface 21441, the second outer wall 21432 is coplanar with the second outer surface 21442, the third outer wall 21433 is coplanar with the third outer surface 21443, and the fourth outer wall 21434 is coplanar with the fourth outer surface 21444.

[0177] In the embodiment illustrated in the present invention, the first contact portion 211b of the first conductive terminal S1 and the first contact portion 211b of the second conductive terminal S2 are arranged opposite two sides of the regular octagonal cylindrical portion 2143. Specifically, the first contact portion 211b of the first conductive terminal S1 and the first contact portion 211b of the second conductive terminal S2 are arranged relative to the third outer wall 21433 and the fourth outer wall 21434 of the regular octagonal cylindrical portion 2143. The first contact portion 211b of the first conductive terminal S1 and the first contact portion 211b of the second conductive terminal S2 are located between the third outer wall 21433 and the fourth outer wall 21434. Both the first contact portion 211b of the first conductive terminal S1 and the first contact portion 211b of the second conductive terminal S2 are horizontal and arranged side to side.

[0178] Please combine Figure 22 as well as Figure 23As shown, in one embodiment of the present invention, the first mounting plate 22 includes a first main body portion 221 and a first limiting side plate 222 protruding forward from the first main body portion 221 along the first direction A1-A1. The first main body portion 221 is provided with a plurality of first fixing protrusions 2211 located at the top of the first main body portion 221, a first fastening hole 2212 penetrating upward through the first main body portion 221, a plurality of second fixing protrusions 2213 protruding rearward from the first main body portion 221, a first positioning protrusion 2214 protruding downward from the first main body portion 221, and a first threaded hole 2215 penetrating downward through the first main body portion 221. The first main body portion 221 abuts against the outer side of the corresponding first terminal module 21 along the third direction A3-A3, and the first limiting side plate 222 abuts against the corresponding first insulating plate 219. The first retaining groove 311 of the first retaining piece 31 cooperates with the first fixing protrusion 2211, and the second retaining groove 321 of the second retaining piece 32 cooperates with the second fixing protrusion 2213.

[0179] In one embodiment of the present invention, the second mounting plate 23 includes a second main body portion 231 and a second limiting side plate 232 protruding forward from the second main body portion 231 along the first direction A1-A1. The second main body portion 231 is provided with a plurality of third fixing protrusions 2311 located at the top of the second main body portion 231, a second fastening hole 2312 extending upward through the second main body portion 231, a plurality of fourth fixing protrusions 2313 protruding rearward from the second main body portion 231, a second positioning protrusion 2314 protruding downward from the second main body portion 231, and a second threaded hole 2315 extending downward through the second main body portion 231. The second main body portion 231 abuts against the outer side of the corresponding first terminal module 21 along the third direction A3-A3, and the second limiting side plate 232 abuts against the corresponding first insulating plate 219. The first retaining groove 311 of the first retaining piece 31 cooperates with the third fixing protrusion 2311, and the second retaining groove 321 of the second retaining piece 32 cooperates with the fourth fixing protrusion 2313.

[0180] This invention uses the first retaining piece 31 and the second retaining piece 32 to fix the first mounting plate 22, the plurality of first terminal modules 21, and the second mounting plate 23 into a whole. The first screw 401 passes through the first mounting through hole 3071 and is tightened into the first threaded hole 2215. The second screw 402 passes through the second mounting through hole 3072 and is tightened into the second threaded hole 2315. The first positioning protrusion 2214 and the second positioning protrusion 2314 are respectively inserted into the first positioning through hole 3073 and the second positioning through hole 3074 to achieve positioning.

[0181] Please combine Figures 10 to 17 As shown, the mounting block 4 includes a mounting base 41 and a plurality of insulating plastics 42 installed within the mounting base 41. In one embodiment of the present invention, the mounting base 41 is electroplated plastic or conductive plastic to cooperate with the circuit board 300 to improve the shielding effect. The mounting base 41 is provided with a plurality of through holes 411 extending through the mounting base 41 along the second direction A2-A2. In the embodiment illustrated in the present invention, the plurality of through holes 411 are arranged in rows. Correspondingly, the insulating plastics 42 are arranged in rows and columns and installed in the through holes 411. Each insulating plastic component 42 includes a first sidewall portion 421, a second sidewall portion 422 opposite to the first sidewall portion 421, a third sidewall portion 423 connecting one end of the first sidewall portion 421 and one end of the second sidewall portion 422, a fourth sidewall portion 424 connecting the other end of the first sidewall portion 421 and the other end of the second sidewall portion 422, and an intermediate wall portion 425 connecting the third sidewall portion 423 and the fourth sidewall portion 424 and located between the first sidewall portion 421 and the second sidewall portion 422. The first sidewall portion 421, the second sidewall portion 422, the third sidewall portion 423, and the fourth sidewall portion 424 form a frame. The intermediate wall portion 425 divides the frame into a first mounting slot 4261 located on one side of the intermediate wall portion 425 and a second mounting slot 4262 located on the other side of the intermediate wall portion 425. The first sidewall portion 421 is provided with a first protrusion 4211 protruding away from the second sidewall portion 422, the second sidewall portion 422 is provided with a second protrusion 4221 protruding away from the first sidewall portion 421, the third sidewall portion 423 is provided with a third protrusion 4231 protruding away from the fourth sidewall portion 424, and the fourth sidewall portion 424 is provided with a fourth protrusion 4241 protruding away from the third sidewall portion 423.

[0182] During assembly, the mounting block 4 is installed at the bottom of the first housing 1. The first protrusion 4211 is inserted into the first opening 2151c6 to close the first opening 2151c6 as much as possible, thereby improving the shielding effect. The second protrusion 4221 is inserted into the second opening 2161c6 to close the second opening 2161c6 as much as possible, thereby improving the shielding effect. The third protrusion 4231 is inserted into the third opening 2171c2 to close the third opening 2171c2 as much as possible, thereby improving the shielding effect. The fourth protrusion 4241 is inserted into the fourth opening 2172c4 to close the fourth opening 2172c4 as much as possible, thereby improving the shielding effect. At this time, the first abutting arm 2114e and the second abutting arm 2115e protrude from the mounting block 4 from the first mounting through groove 4261 and the second mounting through groove 4262, respectively. Furthermore, the first mounting pin 2151c4 and the third mounting pin 2161c4 respectively protrude from the mounting block 4 through the gaps on both sides of the third protrusion 4231 to be mounted on the circuit board 300; the second mounting pin 2151c5 and the fourth mounting pin 2161c5 respectively protrude from the mounting block 4 through the gaps on both sides of the fourth protrusion 4241 to be mounted on the circuit board 300. Please refer to... Figure 10 as well as Figure 13 As shown, the mounting base 41 is arranged around the periphery of each of the first shielding parts 2151c and the second shielding parts 2161c to improve the shielding effect.

[0183] Please refer to Figures 40 to 45 As shown, the second connector 200 includes a second housing 5, a plurality of plug-in modules 6 mounted on the second housing 5, and a first positioning pin 7 and a second positioning pin 8 for positioning the plug-in modules 6 in the second housing 5.

[0184] Please refer to Figure 44 as well as Figure 45As shown, the second housing 5 is made of insulating material and includes a second body portion 51, a third wall portion 52 extending rearward from one end (e.g., the upper end) of the second body portion 51, and a fourth wall portion 53 extending rearward from the other opposite end (e.g., the lower end) of the second body portion 51. The second body portion 51 is provided with a second mating surface 511 and a plurality of second terminal receiving slots 512 penetrating the second mating surface 511. In the embodiment illustrated in the present invention, the second terminal receiving slots 512 are arranged in a generally matrix-like manner. Each second terminal receiving slot 512 is polygonal and has more than or equal to 6 sides. In some embodiments of the present invention, the polygon is an even-numbered polygon with an even number of sides greater than or equal to 6. In the embodiment illustrated in the present invention, the even number is equal to 8, that is, the second terminal receiving slot 512 is octagonal. In the embodiment illustrated in the present invention, each second terminal receiving slot 512 is a regular octagon. The third wall portion 52 is provided with a plurality of first mounting slots 521 and a first slot 522 communicating with the first mounting slots 521. The fourth wall portion 53 is provided with a plurality of second mounting slots 531 and second slots 532 communicating with the second mounting slots 531. The first mounting slots 521 and the second mounting slots 531 extend along the first direction A1-A1. The first mounting slots 521 and the second mounting slots 531, which are aligned with each other along the second direction A2-A2, are used to accommodate corresponding plug-in modules 6. The first slots 522 and the second slots 532 extend in the vertical direction, wherein the first slot 522 penetrates the third wall portion 52 vertically to communicate with the corresponding first mounting slot 521; the second slot 532 penetrates the fourth wall portion 53 vertically to communicate with the corresponding second mounting slot 531. In addition, the second housing 5 also includes a second frame portion 50 connected to the second body portion 51. The second frame portion 50 is provided with a receiving space 501 communicating with the second terminal receiving slot 512 and a positioning groove 502 located on the inner wall surface of the second frame portion 50 and exposed in the receiving space 501. The positioning groove 502 is configured to cooperate with the positioning protrusion 14.

[0185] Please combine Figure 38As shown in the illustrated embodiment of the present invention, each first slot 522 is generally cross-shaped, including a first intermediate slot portion 5220, a first slot portion 5221 located on one side (e.g., the left side) of the first intermediate slot portion 5220 along the third direction A3-A3, a second slot portion 5222 located on the other opposite side (e.g., the right side) of the first intermediate slot portion 5220 along the third direction A3-A3, a first slot portion 5223 located on one side (e.g., the front side) of the first intermediate slot portion 5220 along the first direction A1-A1, and a second slot portion 5224 located on the other opposite side (e.g., the rear side) of the first intermediate slot portion 5220 along the first direction A1-A1. Regarding the first slot 522 itself, the first slot portion 5221, the first intermediate slot portion 5220, and the second slot portion 5222 are connected in the left-right direction; the first slot portion 5223, the first intermediate slot portion 5220, and the second slot portion 5224 are connected in the front-back direction. Both the first slot portion 5221 and the second slot portion 5222 penetrate vertically through the third wall portion 52 to connect with the corresponding first mounting slot 521. The first intermediate slot portion 5220 does not penetrate downwards through the third wall portion 52, allowing the surface of the third wall portion 52 located within the first intermediate slot portion 5220 to limit the corresponding first positioning pin 7. Furthermore, by providing the first slot portion 5223 and the second slot portion 5224, this invention facilitates the clamping of the first positioning pin 7 with a fixture and its assembly or disassembly within the first slot 522.

[0186] Similarly, please combine Figure 39As shown, each second slot 532 is generally cross-shaped, including a second intermediate slot portion 5320, a third slot portion 5321 located on one side (e.g., the left side) of the second intermediate slot portion 5320 along the third direction A3-A3, a fourth slot portion 5322 located on the other opposite side (e.g., the right side) of the second intermediate slot portion 5320 along the third direction A3-A3, a third slot portion 5323 located on one side (e.g., the front side) of the second intermediate slot portion 5320 along the first direction A1-A1, and a fourth slot portion 5324 located on the other opposite side (e.g., the rear side) of the second intermediate slot portion 5320 along the first direction A1-A1. Regarding the second slot 532 itself, the third slot portion 5321, the second intermediate slot portion 5320, and the fourth slot portion 5322 are connected in the left-right direction; the third slot portion 5323, the second intermediate slot portion 5320, and the fourth slot portion 5324 are connected in the front-back direction. The fourth slot portion 5322 penetrates the fourth wall portion 53 in the vertical direction to connect with the second mounting slot 531. Both the third slot portion 5321 and the fourth slot portion 5322 penetrate the fourth wall portion 53 vertically to connect with the corresponding second mounting slot 531. The second intermediate slot portion 5320 does not penetrate the fourth wall portion 53 upwards, so that the surface of the fourth wall portion 53 located in the second intermediate slot portion 5320 can limit the corresponding second positioning pin 8. Furthermore, by providing the third slot 5323 and the fourth slot 5324, the present invention facilitates the clamping of the second positioning pin 8 by a fixture and its assembly or disassembly in the second slot 532. In one embodiment of the present invention, the first positioning pin 7 is provided with a first disassembly hole 71 extending through the first positioning pin 7 along its plate thickness direction, which facilitates the clamping of the first positioning pin 7 by a fixture and its assembly or disassembly in the first slot 522. The second positioning pin 8 is provided with a second disassembly hole 81 extending through the second positioning pin 8 along its plate thickness direction, which facilitates the clamping of the second positioning pin 8 by a fixture and its assembly or disassembly in the second slot 532. In the embodiment illustrated in the present invention, the plate thickness direction of both the first positioning pin 7 and the second positioning pin 8 is a first direction A1-A1. When the plug-in module 6 is damaged, maintenance and replacement can be performed by disassembling the first positioning pin 7 and the second positioning pin 8.

[0187] In one embodiment of the present invention, both the first positioning pin 7 and the second positioning pin 8 are stamped from metal sheets. Figure 42 and Figure 43As shown, in one embodiment, the plurality of first positioning pins 7 can be individually provided and installed in their respective first slots 522; the plurality of second positioning pins 8 can be individually provided and installed in their respective second slots 532. In other embodiments, the plurality of first positioning pins 7 can also be connected into a whole by a first strip (not shown), and the plurality of second positioning pins 8 can also be connected into a whole by a second strip (not shown); during assembly, the first positioning pins 7 and the second positioning pins 8 are respectively installed as a whole in their respective first slots 522 and second slots 532 to improve installation efficiency; after assembly, the first strip and the second strip can be removed or retained as needed.

[0188] Please combine Figures 46 to 55 As shown, each plug-in module 6 includes a second insulating plate 61 and a plurality of second terminal modules 62 fixed to the second insulating plate 61. In the embodiment illustrated in the present invention, each second terminal module 62 is identical, and only one second terminal module 62 will be described below as an example.

[0189] The second insulating plate 61 is installed in the second housing 5. The second insulating plate 61 includes a first mounting protrusion 611 installed in the first mounting slot 521 and a second mounting protrusion 612 installed in the second mounting slot 531. In the embodiment illustrated in the present invention, both the first mounting protrusion 611 and the second mounting protrusion 612 are T-shaped to improve installation reliability. The first mounting protrusion 611 is provided with a first positioning groove 6111, and the second mounting protrusion 612 is provided with a second positioning groove 6121. The first positioning groove 6111 is configured to cooperate with the first positioning pin 7, and the second positioning groove 6121 is configured to cooperate with the second positioning pin 8, so as to retain the plug-in module 6 in the second housing 5 by means of the first positioning pin 7 and the second positioning pin 8, preventing the plug-in module 6 from detaching from the second housing 5.

[0190] The second terminal module 62 includes a plurality of second terminal modules 621, a second shielding sleeve 622 that is at least partially surrounding the second terminal modules 621, a cable 623 electrically connected to the second terminal modules 621, and a conductive element 624 installed at the front end of the second shielding sleeve 622.

[0191] Each second terminal module 621 includes a first mating terminal 621a, a second mating terminal 621b, and an insulating block 621c fixed to the first mating terminal 621a and the second mating terminal 621b. In one embodiment of the invention, the first mating terminal 621a and the second mating terminal 621b form a differential signal pair to improve the signal transmission rate.

[0192] Please combine Figures 54 to 56 As shown in the illustrated embodiment of the present invention, the first mating terminal 621a includes a first retaining portion 621a1, a first mating portion 621a2, a first twisting portion 621a3, and a first cable connecting portion 621a4. In the illustrated embodiment of the present invention, the first mating portion 621a2, the first retaining portion 621a1, the first twisting portion 621a3, and the first cable connecting portion 621a4 are arranged sequentially along a first direction A1-A1. Specifically, the first mating portion 621a2 extends from one end of the first retaining portion 621a1, the first twisting portion 621a3 extends from the other end of the first retaining portion 621a1, and the first cable connecting portion 621a4 is connected to the first twisting portion 621a3. Of course, those skilled in the art will understand that in other embodiments of the present invention, other parts may be provided between any two of the first docking part 621a2, the first holding part 621a1, the first twisting part 621a3, and the first cable connecting part 621a4. For example, a second twisting part may be provided between the first docking part 621a2 and the first holding part 621a1. The present invention will not elaborate on this further.

[0193] Please combine Figure 56 as well as Figure 97As shown in the illustrated embodiment of the present invention, the first retaining portion 621a1 is generally U-shaped and is retained in the insulating block 621c. The first mating portion 621a2 has a first flared opening 621a21 at its end and a first receiving space 621a22 communicating with the first flared opening 621a21. The first flared opening 621a21 is configured to guide the first contact portion 211b of the first conductive terminal S1 into the first receiving space 621a22. The first mating portion 621a2 is located in the insulating block 621c along the first direction A1-A1. The first retaining portion 621a1 and the first mating portion 621a2 are extended and connected without any included angle. The first twisting portion 621a3 causes the first cable connection portion 621a4 to be arranged at an angle θ1 relative to the first retaining portion 621a1 and the first mating portion 621a2. The first angle θ1 is greater than 0° and less than 90°. Furthermore, in one embodiment of the present invention, since the first conductive wire 6231 and the first cable connection portion 621a4 extend and are connected without any included angle, the magnitude of the first angle θ1 is equivalent to the first included angle α1. In one embodiment of the present invention, the first angle θ1 is 45°. In one embodiment illustrated in the present invention, the first twisting portion 621a3 is also U-shaped before twisting, and there is no structural design change compared to the first retaining portion 621a1. The U-shape of the first retaining portion 621a1 or the first twisting portion 621a3 increases the cross-sectional area compared to the overall elongated terminal, thereby adjusting the impedance.

[0194] Similarly, the second mating terminal 621b includes a second holding portion 621b1, a second mating portion 621b2 extending from one end of the second holding portion 621b1, a second twisting portion 621b3 extending from the other end of the second holding portion 621b1, and a second cable connection portion 621b4 connected to the second twisting portion 621b3. In the embodiment illustrated in the present invention, the second holding portion 621b1 is generally U-shaped and is held in the insulating block 621c. The second mating portion 621b2 has a second flared opening 621b21 at its end and a second receiving space 621b22 communicating with the second flared opening 621b21. The second flared opening 621b21 is configured to guide the first contact portion 211b of the second conductive terminal S2 into the second receiving space 621b22. The second mating portion 621b2 is located in the insulating block 621c along the first direction A1-A1. The second retaining portion 621b1 and the second mating portion 621b2 are extended and connected without any included angle. The second twisting portion 621b3 causes the second cable connecting portion 621b4 to be arranged at a second angle θ2 relative to the second retaining portion 621b1 and the second mating portion 621b2. The second angle θ2 is greater than 0° and less than 90°. Furthermore, in one embodiment of the present invention, since the second conductive wire 6232 and the second cable connecting portion 621b4 are extended and connected without any included angle, the size of the second angle θ2 is equivalent to the first included angle α1. In one embodiment of the present invention, the second angle θ2 is 45°. In one embodiment illustrated in the present invention, the second twisting portion 621b3 is also U-shaped before twisting and does not undergo any structural design changes compared to the second retaining portion 621b1.

[0195] Please combine Figure 56 , Figure 57 as well as Figure 98 As shown in the illustrated embodiment of the present invention, the corresponding partial structures of the first docking terminal 621a and the second docking terminal 621b are symmetrical or identical to improve their coupling effect. Specifically, in the illustrated embodiment of the present invention, the first docking portion 621a2 of the first docking terminal 621a is the same as the second docking portion 621b2 of the second docking terminal 621b; the first retaining portion 621a1 of the first docking terminal 621a is symmetrically arranged with the second retaining portion 621b1 of the second docking terminal 621b; the first torsion portion 621a3 of the first docking terminal 621a is symmetrically arranged with the second torsion portion 621b3 of the second docking terminal 621b; and the first cable connection portion 621a4 of the first docking terminal 621a is symmetrically arranged with the second cable connection portion 621b4 of the second docking terminal 621b. Please refer to... Figure 56 as well as Figure 97 As shown, in one embodiment of the present invention, after the first twisting portion 621a3 and the second twisting portion 621b3 are twisted, the first cable connection portion 621a4 and the second cable connection portion 621b4 are arranged facing each other, that is, the U-shaped opening of the first cable connection portion 621a4 and the U-shaped opening of the second cable connection portion 621b4 are arranged face to face. Of course, please refer to... Figure 98 as well as Figure 99 As shown in another embodiment of the present invention, the first cable connection portion 621a4 and the second cable connection portion 621b4 are arranged back to back, that is, the U-shaped opening of the first cable connection portion 621a4 and the U-shaped opening of the second cable connection portion 621b4 are arranged back to back.

[0196] Please combine Figures 57 to 59 As shown in another embodiment of the present invention, the first mating terminal 621a includes a first holding portion 621a1, a first mating portion 621a2 extending from one end of the first holding portion 621a1, a first twisting portion 621a3 extending from the other end of the first holding portion 621a1, and a first cable connection portion 621a4 connected to the first twisting portion 621a3. In the embodiment of the present invention, the first holding portion 621a1 is generally U-shaped and is held in the insulating block 621c. The first twisting portion 621a3 causes the first cable connection portion 621a4 to be inclined at a first angle θ1 relative to the first holding portion 621a1 and the first mating portion 621a2. The first angle θ1 is greater than 0° and less than 90°. In one embodiment of the present invention, the first angle θ1 is 45°. In one embodiment of the present invention, the first twisting portion 621a3 is thinned relative to the first holding portion 621a1. In other words, the first twisting part 621a3 is a single-layer sheet (no longer U-shaped) to facilitate twisting and adjustment of the impedance of the first mating terminal 621a.

[0197] In addition, please combine Figures 57 to 59As shown, the first mating terminal 621a further includes a first electrical connection element 621a5 fixed to the first torsion portion 621a3, so as to better adjust the impedance of the first mating terminal 621a through the first electrical connection element 621a5. In one embodiment of the present invention, the first electrical connection element 621a5 is fixed to the first torsion portion 621a3 by molding, so as to be combined with the first torsion portion 621a3 into an inseparable whole. In the embodiment of the present invention illustrated, the first electrical connection element 621a5 smoothly transitions with the first holding portion 621a1 and the first cable connection portion 621a4. In some embodiments of the present invention, the first electrical connection element 621a5 is electroplated plastic or conductive plastic.

[0198] Similarly, the second mating terminal 621b includes a second holding portion 621b1, a second mating portion 621b2 extending from one end of the second holding portion 621b1, a second twisting portion 621b3 extending from the other end of the second holding portion 621b1, and a second cable connection portion 621b4 connected to the second twisting portion 621b3. In the illustrated embodiment of the present invention, the second holding portion 621b1 is generally U-shaped and is held in the insulating block 621c. The second twisting portion 621b3 causes the second cable connection portion 621b4 to be inclined at a second angle θ2 relative to the second holding portion 621b1 and the second mating portion 621b2. The second angle θ2 is greater than 0° and less than 90°. In one embodiment of the present invention, the second angle θ2 is 45°. In one illustrated embodiment of the present invention, the second twisting portion 621b3 is thinned relative to the second holding portion 621b1. In other words, the second twisting part 621b3 is a single-layer sheet (no longer U-shaped) to facilitate twisting and adjustment of the impedance of the second mating terminal 621b.

[0199] In addition, please combine Figures 57 to 59 As shown, the second mating terminal 621b further includes a second electrical connection element 621b5 fixed to the second torsion portion 621b3, so as to better adjust the impedance of the second mating terminal 621b through the second electrical connection element 621b5. In one embodiment of the present invention, the second electrical connection element 621b5 is fixed to the second torsion portion 621b3 by molding, so as to be integrated with the second torsion portion 621b3 into an inseparable whole. In the embodiment of the present invention illustrated, the second electrical connection element 621b5 smoothly transitions with the second holding portion 621b1 and the second cable connection portion 621b4. In some embodiments of the present invention, the second electrical connection element 621b5 is electroplated plastic or conductive plastic.

[0200] In the various embodiments illustrated in the present invention, both the first cable connection portion 621a4 and the second cable connection portion 621b4 are generally U-shaped and arranged face-to-face. In other words, the U-shaped opening of the first cable connection portion 621a4 and the U-shaped opening of the second cable connection portion 621b4 are arranged opposite each other. Specifically, the first cable connection portion 621a4 includes a generally U-shaped first transition portion 621a41 and a generally U-shaped first rear end portion 621a42 connected to the first transition portion 621a41. The first transition portion 621a41 is provided with a first outer side wall 621a411 and a first folded portion 621a412 formed by bending from the upper and lower edges of the first outer side wall 621a411. The first rear end portion 621a42 is provided with a second outer side wall 621a421 and a second folded portion 621a422 formed by bending from the upper and lower edges of the second outer side wall 621a421. The second cable connector 621b4 includes a generally U-shaped second transition portion 621b41 and a generally U-shaped second rear end portion 621b42 connected to the second transition portion 621b41. The second transition portion 621b41 has a third outer side wall 621b411 and a third folded portion 621b412 formed by bending the upper and lower edges of the third outer side wall 621b411. The second rear end portion 621b42 has a fourth outer side wall 621b421 and a fourth folded portion 621b422 formed by bending the upper and lower edges of the fourth outer side wall 621b421. The first rear end portion 621a42 is closer to the cable 623 than the first transition portion 621a41. In other words, the first rear end portion 621a42 is farther away from the first mating portion 621a2 than the first transition portion 621a41. The second rear end portion 621b42 is closer to the cable 623 than the second transition portion 621b41. In other words, the second rear end portion 621b42 is farther away from the second mating portion 621b2 than the second transition portion 621b41. In the illustrated embodiment of the invention, the first fold portion 621a412 and the third fold portion 621b412 extend face-to-face, forming a first gap between them. The second fold portion 621a422 and the fourth fold portion 621b422 extend face-to-face, forming a second gap between them. The first gap is larger than the second gap to control impedance.

[0201] In addition, in the various embodiments illustrated in the present invention, both the first mating terminal 621a and the second mating terminal 621b are made of a thinner metal material to facilitate impedance adjustment.

[0202] In the embodiment illustrated in the present invention, the insulating block 621c includes a first insulating block 621c1 and a second insulating block 621c2 that cooperates with the first insulating block 621c1. The first insulating block 621c1 and the second insulating block 621c2 are separately disposed and assembled and fixed together to fix the first mating terminal 621a and the second mating terminal 621b. The first cable connection portion 621a4 and the second cable connection portion 621b4 both protrude rearward from the insulating block 621c along the first direction A1-A1.

[0203] In the illustrated embodiment of the present invention, the second shielding sleeve 622 is disposed around the periphery of the second terminal module 621 to improve the shielding effect. The second shielding sleeve 622 includes a first shielding shell 622a and a second shielding shell 622b, which are fixed together (e.g., by welding). The first shielding shell 622a includes a first mounting end 622a1 and a first extension 622a2 connected to the first mounting end 622a1. The second shielding shell 622b includes a second mounting end 622b1 and a second extension 622b2 connected to the second mounting end 622b1. The first mounting end 622a1 and the second mounting end 622b1 cooperate to form an elliptical covering portion 622c. The first extension 622a2 and the second extension 622b2 cooperate to form a polygonal cylindrical portion 622d with at least six sides. In some embodiments of the present invention, the polygon is an even-numbered polygon, and the even number is greater than or equal to 6. In the embodiment illustrated in the present invention, the even number is equal to 8, that is, the cylindrical portion 622d is octagonal. Correspondingly, the cylindrical portion 622d is provided with a hollow octagonal second cavity 6220. In the embodiment illustrated in the present invention, the octagonal second cavity 6220 is a regular octagonal cavity. The first extension portion 622a2 is provided with a first mounting notch 622a21 extending forward along the first direction A1-A1 through the first extension portion 622a2. The second extension portion 622b2 is provided with a second mounting notch 622b21 extending forward along the first direction A1-A1 through the second extension portion 622b2. Please refer to... Figure 46 As shown in the illustrated embodiment of the present invention, the portions of the first mating terminal 621a and the second mating terminal 621b located in the second cavity 6220 are aligned along the thickness direction VV of the insertion module 6. The thickness direction VV is the same as the third thickness direction A3-A3.

[0204] In one embodiment of the present invention, the conductive element 624 is a metal block or an electroplated plastic block. The conductive element 624 is at least partially inserted into the second cavity 6220. The conductive element 624 includes a head 6241, an insertion portion 6242 connected to the head 6241, and a first insertion hole 6243 and a second insertion hole 6244 penetrating the head 6241 and the insertion portion 6242 along the first direction A1-A1. A first mounting protrusion 62421 and a second mounting protrusion 62422 are respectively provided on both sides of the insertion portion 6242. The insertion portion 6242 is at least partially inserted into the second cavity 6220, and the first mounting protrusion 62421 and the second mounting protrusion 62422 are respectively inserted into the first mounting notch 622a21 and the second mounting notch 622b21 to achieve positioning and limiting. Furthermore, the insertion portion 6242 is provided with at least one snap-fit ​​protrusion 62423, and the second shielding sleeve 622 is provided with a snap-fit ​​opening 6221 that engages with the snap-fit ​​protrusion 62423. The head 6241 protrudes from the second shielding sleeve 622. The first insertion hole 6243 communicates with the first accommodating space 621a22 for insertion of the first contact portion 211b of the first conductive terminal S1. The second insertion hole 6244 communicates with the second accommodating space 621b22 for insertion of the first contact portion 211b of the second conductive terminal S2. In the embodiment illustrated in the present invention, the head 6241 is octagonal and matches the shape of the second shielding sleeve 622. The cross-sectional area of ​​the first insertion hole 6243 and the cross-sectional area of ​​the second insertion hole 6244 are both smaller than the cross-sectional area of ​​the second cavity 6220 of the cylindrical portion 622d.

[0205] The cable 623 includes a first conductive wire 6231, a second conductive wire 6232, a first insulating layer 6233 circumferentially wrapped around the first conductive wire 6231, a second insulating layer 6234 circumferentially wrapped around the second conductive wire 6232, a shielding layer 6235 circumferentially wrapped around the first insulating layer 6233 and the second insulating layer 6234, and an insulating sheath 6236 circumferentially wrapped around the shielding layer 6235. In the illustrated embodiment of the present invention, both the first conductive wire 6231 and the second conductive wire 6232 extend beyond the first insulating layer 6233 and the second insulating layer 6234, respectively, and are configured to be electrically connected to the first cable connection portion 621a4 and the second cable connection portion 621b4, respectively. The first conductive wire 6231 and the second conductive wire 6232 are configured to directly or indirectly contact the first cable connection portion 621a4 and the second cable connection portion 621b4, respectively. In one embodiment of the present invention, the first conductive wire 6231 and the second conductive wire 6232 are configured to be welded and fixed to the first cable connection portion 621a4 and the second cable connection portion 621b4, respectively. The shielding layer 6235 is partially exposed outside the insulating sheath 6236, and the shielding layer 6235 is sandwiched between the first mounting end 622a1 and the second mounting end 622b1. In one embodiment of the present invention, the shielding layer 6235 is welded and fixed to both the first mounting end 622a1 and the second mounting end 622b1.

[0206] The cable 623 further includes a first signal line 6237 connected to the first conductive line 6231 and wrapped by the first insulating layer 6233, and a second signal line 6238 connected to the second conductive line 6232 and wrapped by the second insulating layer 6234. The arrangement direction UU of the first signal line 6237 and the second signal line 6238 forms a first angle α1 with the thickness direction VV of the plug-in module 6, where 0° < α1 < 90°. Preferably, the first angle α1 is 45°. The arrangement direction UU connects the center point of the first signal line 6237 and the center point of the second signal line 6238.

[0207] Please combine Figure 47 As shown in the illustrated embodiment of the present invention, the insulating skin 6236 is generally elliptical in shape to mate with the covering portion 622c. The ellipse is inclined relative to the thickness direction VV of the plug-in module 6. That is, the line connecting the two foci of the ellipse also forms a first angle α1 with the thickness direction VV of the plug-in module 6, where 0° < α1 < 90°. Preferably, the first angle α1 is 45°.

[0208] Please combine Figure 47 As shown in the illustrated embodiment of the present invention, the cable 623 is arranged at an angle greater than 0° and less than 90°. In one embodiment of the present invention, since the first conductive wire 6231 and the first cable connection portion 621a4 extend and are connected without any included angle, the angle of inclination of the cable 623 is equivalent to the first included angle α1. In one embodiment of the present invention, the angle of inclination is 45°. This is beneficial for improving the overall arrangement of the second connector 200 and reducing the width occupied by each plug module 6. Those skilled in the art will understand that in the illustrated embodiment of the present invention, when the angle of inclination of the cable 623 is 45°, and in order to keep the first mating terminal 621a and the second mating terminal 621b horizontally arranged, the octagonal design concept of the present invention can be derived by calculating 360 / 45 = 8. Of course, other polygons with more than or equal to 6 sides are also feasible implementations. Preferably, the number of sides is even, and the even number is greater than or equal to 6. This setting can maintain the symmetry of the mating frame as much as possible.

[0209] In the illustrated embodiment of the present invention, the second insulating plate 61 is formed on the second terminal module 62. Specifically, the second insulating plate 61 is formed on the first mounting end 622a1 and the second mounting end 622b1. The cable 623 extends rearward from the second insulating plate 61 along the first direction A1-A1.

[0210] When assembling the second connector 200, the plurality of plug-in modules 6 are first installed on the second housing 5 along the first direction A1-A1. The second shielding sleeve 622 and conductive element 624 of the plug-in module 6 pass through the corresponding second terminal receiving groove 512 and protrude into the receiving space 501. Then, the first positioning pin 7 and the second positioning pin 8 are installed and fixed to the second housing 5 along the second direction A2-A2. At this time, the first positioning pin 7 and the second positioning pin 8 are respectively inserted into the first positioning groove 6111 and the second positioning groove 6121 along the second direction A2-A2 to prevent the plug-in module 6 from detaching from the second housing 5. Please refer to Figure 93 as well as Figure 94As shown, during assembly and use, one or more of the plug-in modules 6 may be damaged, requiring repair or replacement of the damaged plug-in modules 6. In this case, a disassembly jig 500 can be used to disassemble the first disassembly hole 71 of the first positioning pin 7 and the second disassembly hole 81 of the second positioning pin 8 to facilitate the disassembly of the first positioning pin 7 and the second positioning pin 8. In one embodiment of the invention, the first disassembly hole 71 and the second disassembly hole 81 are through which the disassembly jig 500 passes, enabling the disassembly and assembly of a single plug-in module 6 to the second housing 5. In another embodiment of the invention, the disassembly jig 500 is provided with a hook 501, which hooks the first disassembly hole 71 and the second disassembly hole 81, thereby more conveniently enabling the disassembly and assembly of a single plug-in module 6 from the second housing 5 and the assembly of a single plug-in module 6 to the second housing 5. In the embodiment illustrated in the present invention, both the first disassembly hole 71 and the second disassembly hole 81 are complete holes, meaning that the first positioning pin 7 has a solid structure completely surrounding the first disassembly hole 71, and the second positioning pin 8 has a solid structure completely surrounding the second disassembly hole 81. This arrangement helps maintain the structural strength of the first positioning pin 7 and the second positioning pin 8, reducing the risk that the disassembly fixture 500 might damage the first positioning pin 7 and the second positioning pin 8 during disassembly and assembly.

[0211] When the first connector 100 mates with the second connector 200, the first housing 1 of the first connector 100 is at least partially received in the receiving space 501 of the second connector 200; the second shielding sleeve 622 and the conductive element 624 of the second connector 200 are inserted into the first terminal receiving groove 112; the octagonal second shielding sleeve 622 matches the octagonal first terminal receiving groove 112; as the mating deepens, the second shielding sleeve 622 and the conductive element 624 of the second connector 200 are both inserted into the shielding space 2140 of the first shielding sleeve 214; the first contact portion 211b of the first conductive terminal S1 and the first contact portion 211b of the second conductive terminal S2 pass through the first insertion hole 6243 and the second insertion hole 6244 respectively, to be inserted into the first receiving space 621a22 of the first mating terminal 621a and the second receiving space 621b22 of the second mating terminal 621b respectively. Figure 64 as well as Figure 65As shown, when the first connector 100 and the second connector 200 are fully mated, the first shielding sleeve 2112 and the second shielding sleeve 2113 are at least partially inserted into the first insertion hole 6243 and the second insertion hole 6244, respectively, and are in contact with the conductive element 624 to provide grounding and shielding. The first slot 2112a and the second slot 2113a respectively provided on the first shielding sleeve 2112 and the second shielding sleeve 2113 allow for a certain degree of elastic deformation when they are at least partially inserted into the first insertion hole 6243 and the second insertion hole 6244. At this time, the second segment 211b2 of the first contact portion 211b of the first conductive terminal S1 and the second segment 211b2 of the first contact portion 211b of the second conductive terminal S2 are respectively inserted into the insulating block 621c. In the illustrated embodiment of the present invention, the connection point between the second segment 211b2 of the first contact portion 211b of the first conductive terminal S1 and the first segment 211b1 of the first contact portion 211b of the first conductive terminal S1 is close to the end face of the head 6241 of the conductive member 624. The connection point between the second segment 211b2 of the first contact portion 211b of the second conductive terminal S2 and the first segment 211b1 of the first contact portion 211b of the second conductive terminal S2 is also close to the end face of the head 6241 of the conductive member 624. The third segment 211b3 of the first contact portion 211b of the first conductive terminal S1 contacts the first mating portion 621a2 of the first mating terminal 621a, and the contact portion is located within the insulating block 621c. The third segment 211b3 of the first contact portion 211b of the second conductive terminal S2 contacts the second mating portion 621b2 of the second mating terminal 621b, and the contact portion is located within the insulating block 621c. Of course, those skilled in the art will understand that the conductive element 624 can be separately disposed from and assembled with the second shielding sleeve 622, or the conductive element 624 and the second shielding sleeve 622 can be integrally formed.

[0212] Please combine Figures 66 to 67 As shown, during the separation of the first connector 100 and the second connector 200, the relative positions of the first contact portion 211b of the first conductive terminal S1 and the first contact portion 211b of the second conductive terminal S2 with the first mating terminal 621a and the second mating terminal 621b, respectively, change. How to avoid sudden impedance changes during this process is a technical problem that those skilled in the art need to solve.

[0213] In the embodiment illustrated in the present invention, the first shielding sleeve 2112 and the second shielding sleeve 2113 are single-ended coaxial structures. By setting the first shielding sleeve 2112 and the second shielding sleeve 2113, the impedance of the first segment 211b1 of the first contact portion 211b of the first conductive terminal S1 will not change significantly with the insertion and removal positions of the first connector 100 and the second connector 200 under the main function of the first insulating isolation block 2117 and the first shielding sleeve 2112. Similarly, the impedance of the first segment 211b1 of the first contact portion 211b of the second conductive terminal S2 will not change significantly with the insertion and removal positions of the first connector 100 and the second connector 200 under the main function of the first insulating isolation block 2117 and the second shielding sleeve 2113. At this time, the second segment 211b2 of the first contact portion 211b of the first conductive terminal S1, under the main action of the insulating block 621c and the cylindrical portion 622d, matches the impedance of the first segment 211b1 of the first conductive terminal S1; the second segment 211b2 of the first contact portion 211b of the second conductive terminal S2, under the action of the insulating block 621c and the cylindrical portion 622d, respectively matches the impedance of the first segment 211b1 of the second conductive terminal S2. Furthermore, the third segment 211b3 of the first contact portion 211b of the first conductive terminal S1, under the main functions of the first mating portion 621a2, the insulating block 621c, and the cylindrical portion 622d, matches the impedance of the second segment 211b2 of the first conductive terminal S1; the third segment 211b3 of the first contact portion 211b of the second conductive terminal S2, under the main functions of the second mating portion 621b2, the insulating block 621c, and the cylindrical portion 622d, matches the impedance of the second segment 211b2 of the second conductive terminal S2.

[0214] Please combine Figure 66As shown, when the first connector 100 and the second connector 200 are just de-mating, the second segment 211b2 of the first contact portion 211b of the first conductive terminal S1 and the second segment 211b2 of the first contact portion 211b of the second conductive terminal S2 will at least partially enter the conductive member 624. At this time, the conductive member 624 and the second segment 211b2 of the first contact portion 211b of the first conductive terminal S1 form a first air gap AG1 in the radial direction, and the conductive member 624 and the second segment 211b2 of the first contact portion 211b of the second conductive terminal S2 also form a first air gap AG1 in the radial direction. In other words, at this time, the second segment 211b2 of the first contact portion 211b of the first conductive terminal S1 and the second segment 211b2 of the first contact portion 211b of the second conductive terminal S2 are both surrounded circumferentially by the corresponding first air gap AG1. The first air gap AG1 and the conductive member 624 form an impedance medium located on the outer periphery of the second segment 211b2. Because air has a high impedance, the conductive element 624 is needed to prevent a sudden impedance change in the second segment 211b2. Specifically, the thickness of the second segment 211b2 is greater than that of the first segment 211b1, therefore the impedance of the second segment 211b2 is less than that of the first segment 211b1. Combined with the conductive element 624 located around the second segment 211b2, and considering all these factors, the impedance of the second segment 211b2 can be suppressed, preventing a sudden impedance change. Specifically, when the second segment 211b2 of the first contact portion 211b of the first conductive terminal S1 is at least partially located in the first air gap AG1, the inner wall of the first insertion hole 6243 of the conductive member 624 is close to the second segment 211b2 of the first contact portion 211b of the first conductive terminal S1, and the inner wall of the first insertion hole 6243 of the conductive member 624 serves as a grounding reference for the second segment 211b2 of the first contact portion 211b of the first conductive terminal S1. Similarly, when the second segment 211b2 of the first contact portion 211b of the second conductive terminal S2 is at least partially located in the first air gap AG1, the inner wall of the second insertion hole 6244 of the conductive member 624 is close to the second segment 211b2 of the first contact portion 211b of the second conductive terminal S2, and the inner wall of the second insertion hole 6244 of the conductive member 624 serves as a grounding reference for the second segment 211b2 of the first contact portion 211b of the second conductive terminal S2. With this configuration, the present invention can prevent impedance abrupt changes in the second segment 211b2.

[0215] Please combine Figure 67 as well as Figure 68As shown, when the first connector 100 and the second connector 200 further separate, the second segment 211b2 completely enters the conductive member 624, and the impedance change of the second segment 211b2 is prevented by the first air gap AG1 and the conductive member 624. Simultaneously, at least a portion of the third segment 211b3 of the first contact portion 211b of the first conductive terminal S1 also enters the conductive member 624, and at least a portion of the third segment 211b3 of the first contact portion 211b of the second conductive terminal S2 also enters the conductive member 624. At this time, a second air gap AG2 is formed radially between the conductive member 624 and the third segment 211b3 of the first contact portion 211b of the first conductive terminal S1, and also radially between the conductive member 624 and the third segment 211b3 of the first contact portion 211b of the second conductive terminal S2. In other words, at this time, the third segment 211b3 of the first contact portion 211b of the first conductive terminal S1 and the third segment 211b3 of the first contact portion 211b of the second conductive terminal S2 are both surrounded circumferentially by corresponding second air gaps AG2. Since air has high resistance, the thickness of the second segment 211b2 is greater than that of the first segment 211b1, the thickness of the third segment 211b3 is greater than that of the first segment 211b1, and the thickness of the second segment 211b2 is greater than that of the third segment 211b3. Therefore, the impedance of the second segment 211b2 itself is less than that of the first segment 211b1 itself, and the impedance of the third segment 211b3 itself is less than that of the first segment 211b1 itself. Combined with the conductive element 624 located at least partially around the second segment 211b2 and the third segment 211b3, considering the above factors, it is possible to prevent a sudden impedance change in the third segment 211b3.

[0216] Furthermore, in the embodiment illustrated in the present invention, the cross-sectional area of ​​the second segment 211b2 is larger than that of the first segment 211b1, and the cross-sectional area of ​​the second segment 211b2 is larger than that of the third segment 211b3. When the second segment 211b2 and / or the third segment 211b3 are exposed to air in the conductive member 624, the conductive member 624 can control impedance fluctuations. In other words, during the separation process of the second segment 211b2 and the third segment 211b3 of the first conductive terminal S1 and the second segment 211b2 and the third segment 211b3 of the second conductive terminal S2 from the first mating portion 621a2 of the first mating terminal 621a and the second mating portion 621b2 of the second mating terminal 621b, respectively, they will break free from the impedance suppression of the insulating block 621c, the first mating portion 621a2, and the second mating portion 621b2, and enter the air. Since air has a high impedance, the present invention effectively solves this problem by setting the conductive element 624 to avoid impedance abrupt changes. At the same time, by designing the thickness of the second segment 211b2 and the third segment 211b3 to be greater than the thickness of the first segment 211b1, the conductive element 624 can be used to achieve a better effect in preventing impedance abrupt changes.

[0217] Please combine Figures 69 to 71 As shown, in another embodiment of the present invention, the first terminal module 21 includes a spring piece 210 at least partially disposed within the first shielding sleeve 214. The first shielding sleeve 214 has a plurality of first opening slots 2142 located at its ends, the first opening slots 2142 being arranged circumferentially spaced along the first shielding sleeve 214. The spring piece 210 includes an annular portion 2101, a plurality of elastic arms 2102 extending from one side of the annular portion 2101, and a plurality of extension arms 2103 extending from the other side of the annular portion 2101. The annular portion 2101 is octagonal to abut against the inner wall surface of the first shielding sleeve 214. Each elastic arm 2102 is cantilevered and has a flanged portion 21021 located at the free end of the elastic arm 2102. The flanged portion 21021 corresponds to the first opening slot 2142 and extends out of the first shielding sleeve 214. The flange 21021 can guide the insertion of the second shielding sleeve 622 and also prevent the spring piece 210 from falling off the first shielding sleeve 214.

[0218] Please combine Figures 72 to 75As shown in another embodiment of the present invention, each conductive terminal on the first terminal module 211 includes a first fixing portion 211a, a first contact portion 211b connected to one end of the first fixing portion 211a, and a first tail portion 211c connected to the other end of the first fixing portion 211a. In the embodiment illustrated in the present invention, the first fixing portion 211a is bent. The first contact portion 211b is needle-shaped and perpendicular to the first tail portion 211c. In another embodiment illustrated in the present invention, the first tail portion 211c is wider than the first fixing portion 211a connected to it.

[0219] The first terminal module 211 further includes a first elastic abutment 2114 and a second elastic abutment 2115. The first elastic abutment 2114 is made of metal. The first elastic abutment 2114 is separately disposed from and fixed together with the first conductive terminal S1. The second elastic abutment 2115 is separately disposed from and fixed together with the second conductive terminal S2.

[0220] Specifically, in another embodiment illustrated in the present invention, the first resilient abutment foot 2114 includes a first mounting piece 2114a, a second mounting piece 2114b opposite to the first mounting piece 2114a, a first connecting portion 2114c connecting one side of the first mounting piece 2114a and one side of the second mounting piece 2114b, a first abutment arm 2114e connected to the first connecting portion 2114c, and a first end portion 2114f connected to the first abutment arm 2114e and located at the free end of the first abutment arm 2114e. In the embodiment illustrated in the present invention, the first end portion 2114f extends close to the first mounting piece 2114a and the second mounting piece 2114b. When the first resilient abutment foot 2114 is mounted on the circuit board 300, the first end portion 2114f contacts at least one of the first mounting piece 2114a, the second mounting piece 2114b, and the first tail portion 211c of the first conductive terminal S1 to improve performance. In the illustrated embodiment of the present invention, along the second direction A2-A2, the first mounting piece 2114a and the second mounting piece 2114b have the same protrusion height. The first mounting piece 2114a and the second mounting piece 2114b are spaced apart along the third direction A3-A3, and the first elastic abutment foot 2114 includes a first receiving groove 2114g located between the first mounting piece 2114a and the second mounting piece 2114b along the third direction A3-A3. The first connecting portion 2114c is located at the bottom of the first receiving groove 2114g. In the illustrated embodiment of the present invention, the first abutment arm 2114e is generally V-shaped and has a first pressing portion 2114e1 located at the bottom. The first pressing portion 2114e1 is configured to elastically abut against the first conductive sheet 303. In the illustrated embodiment of the present invention, the first pressing portion 2114e1 is fixed to the first conductive sheet 303 without welding.

[0221] Specifically, in the illustrated embodiment of the present invention, the second resilient abutment foot 2115 includes a third mounting piece 2115a, a fourth mounting piece 2115b opposite to the third mounting piece 2115a, a third connecting portion 2115c connecting one side of the third mounting piece 2115a and one side of the fourth mounting piece 2115b, a second abutment arm 2115e connected to the third connecting portion 2115c, and a second end portion 2115f connected to the second abutment arm 2115e and located at the free end of the second abutment arm 2115e. In the illustrated embodiment of the present invention, the second end portion 2115f extends close to the third mounting piece 2115a and the fourth mounting piece 2115b. When the second resilient abutment foot 2115 is mounted on the circuit board 300, the second end portion 2115f contacts at least one of the third mounting piece 2115a, the fourth mounting piece 2115b, and the first tail portion 211c of the second conductive terminal S2 to improve performance. In the illustrated embodiment of the present invention, along the second direction A2-A2, the third mounting piece 2115a and the fourth mounting piece 2115b have the same protrusion height. The third mounting piece 2115a and the fourth mounting piece 2115b are spaced apart along the third direction A3-A3, and the second elastic abutment foot 2115 includes a second receiving groove 2115g located between the third mounting piece 2115a and the fourth mounting piece 2115b along the third direction A3-A3. The third connecting portion 2115c is located at the bottom of the second receiving groove 2115g. In the illustrated embodiment of the present invention, the second abutment arm 2115e is generally V-shaped and has a second abutment portion 2115e1 located at the bottom. The second abutment portion 2115e1 is configured to elastically abut against the second conductive sheet 304. In the illustrated embodiment of the present invention, the second abutment portion 2115e1 is fixed to the second conductive sheet 304 without welding.

[0222] During assembly, the first tail portion 211c of the first conductive terminal S1 is received in the first receiving groove 2114g of the first elastic abutment foot 2114. The first tail portion 211c of the first conductive terminal S1 is configured to abut against the first connecting portion 2114c along the second direction A2-A2 for positioning. The first mounting piece 2114a and the second mounting piece 2114b are respectively located on both sides of the first tail portion 211c and are in contact with the first tail portion 211c. In one embodiment of the present invention, at least one of the first mounting piece 2114a and the second mounting piece 2114b is fixed to the first tail portion 211c (e.g., by welding).

[0223] Similarly, the first tail portion 211c of the second conductive terminal S2 is received in the second receiving groove 2115g of the second elastic abutment foot 2115. The first tail portion 211c of the second conductive terminal S2 is configured to abut against the third connecting portion 2115c along the second direction A2-A2 for positioning. The third mounting piece 2115a and the fourth mounting piece 2115b are located on both sides of the first tail portion 211c and are in contact with the first tail portion 211c. In one embodiment of the present invention, at least one of the third mounting piece 2115a and the fourth mounting piece 2115b is fixed to the first tail portion 211c (e.g., by welding).

[0224] Please combine Figure 84 As shown, in Figure 75 In another embodiment, the first tail portion 211c of the first conductive terminal S1 and at least one of the first mounting piece 2114a and the second mounting piece 2114b are provided with a first protrusion 211c3 and a first positioning hole 2114p that cooperate with each other; the first tail portion 211c of the second conductive terminal S1 and at least one of the third mounting piece 2115a and the fourth mounting piece 2115b are provided with a second protrusion 211c4 and a second positioning hole 2115p that cooperate with each other. In one embodiment of the present invention, the first protrusion 211c3 is a first bulge integrally formed on the first tail portion 211c of the first conductive terminal S1. The first positioning hole 2114p penetrates the first mounting piece 2114a and the second mounting piece 2114b. Similarly, the second protrusion 211c4 is a second bulge integrally formed on the first tail portion 211c of the second conductive terminal S2. The second positioning hole 2115p penetrates the third mounting piece 2115a and the fourth mounting piece 2115b. By engaging the first protrusion 211c3 with the first positioning hole 2114p, and by combining the constraint effect of the first connecting portion 2114c on the first tail 211c of the first conductive terminal S1, rotation of the first tail 211c of the first conductive terminal S1 relative to the first elastic abutment 2114 can be prevented during installation. Similarly, by engaging the second protrusion 211c4 with the second positioning hole 2115p, and by combining the constraint effect of the third connecting portion 2115c on the first tail 211c of the second conductive terminal S2, rotation of the first tail 211c of the second conductive terminal S2 relative to the second elastic abutment 2115 can be prevented during installation.

[0225] Of course, in other embodiments of the present invention, the first protrusion 211c3 and the first positioning hole 2114p may both be elongated to prevent the first tail 211c of the first conductive terminal S1 from rotating relative to the first elastic abutment 2114 after being installed on the first elastic abutment 2114. Similarly, in other embodiments of the present invention, the second protrusion 211c4 and the second positioning hole 2115p may both be elongated to prevent the first tail 211c of the second conductive terminal S2 from rotating relative to the second elastic abutment 2115 after being installed on the second elastic abutment 2115.

[0226] Please combine Figures 76 to 79 As shown in another embodiment of the present invention illustrated, each conductive terminal on the first terminal module 211 includes a first fixing portion 211a, a first contact portion 211b connected to one end of the first fixing portion 211a, and a first tail portion 211c connected to the other end of the first fixing portion 211a. In the embodiment illustrated in the present invention, the first fixing portion 211a is bent. The first contact portion 211b is needle-shaped and perpendicular to the first tail portion 211c. In another embodiment illustrated in the present invention, the first tail portion 211c is wider than the first fixing portion 211a connected to it.

[0227] The first terminal module 211 further includes a first elastic abutment 2114 and a second elastic abutment 2115. The first elastic abutment 2114 is made of metal. The first elastic abutment 2114 is separately disposed from and fixed together with the first conductive terminal S1. The second elastic abutment 2115 is separately disposed from and fixed together with the second conductive terminal S2.

[0228] Specifically, in another embodiment illustrated in the present invention, the first elastic abutment foot 2114 includes a first mounting piece 2114a, a first connecting portion 2114c connected to the bottom of the first mounting piece 2114a and perpendicular to the first mounting piece 2114a, a first S-shaped bend 2114h connected to the first connecting portion 2114c, a first bending portion 2114i connected to one end of the first S-shaped bend 2114h, and a second bending portion 2114j connected to the other end of the first S-shaped bend 2114h. The first mounting piece 2114a is configured to contact the first tail portion 211c of the first conductive terminal S1. In one embodiment of the present invention, the first mounting piece 2114a is welded and fixed to the first tail portion 211c of the first conductive terminal S1. The first S-shaped bend 2114h includes a first arc-shaped bend 2114h1 and a second arc-shaped bend 2114h2. The free end of the first bent portion 2114i is close to the outer side of the second arc-shaped bent portion 2114h2. The free end of the second bent portion 2114j is close to the outer side of the first arc-shaped bent portion 2114h1. A first pressing portion 2114e1 is provided at the bottom of the first S-shaped bent portion 2114h. The first pressing portion 2114e1 is configured to elastically abut against the first conductive sheet 303. In the embodiment illustrated in the present invention, the first pressing portion 2114e1 is fixed to the first conductive sheet 303 without welding.

[0229] Specifically, in another embodiment illustrated in the present invention, the second resilient abutment foot 2115 includes a third mounting piece 2115a, a third connecting portion 2115c connected to the bottom of the third mounting piece 2115a and perpendicular to the third mounting piece 2115a, a second S-shaped bend 2115h connected to the third connecting portion 2115c, a third bend 2115i connected to one end of the second S-shaped bend 2115h, and a fourth bend 2115j connected to the other end of the second S-shaped bend 2115h. The third mounting piece 2115a is configured to contact the first tail portion 211c of the second conductive terminal S2. In one embodiment of the present invention, the third mounting piece 2115a is welded and fixed to the first tail portion 211c of the second conductive terminal S2. The second S-shaped bend 2115h includes a third arc-shaped bend 2115h1 and a fourth arc-shaped bend 2115h2. The free end of the third bend 2115i is close to the outer side of the fourth arc-shaped bend 2115h2. The free end of the fourth bend 2115j is close to the outer side of the third arc-shaped bend 2115h1. The bottom of the second S-shaped bend 2115h is provided with a second abutment 2115e1. The second abutment 2115e1 is configured to elastically abut against the second conductive sheet 304. In the embodiment illustrated in the present invention, the second abutment 2115e1 is fixed to the second conductive sheet 304 without welding.

[0230] When the first pressing part 2114e1 and the second abutting part 2115e1 elastically abut against the first conductive sheet 303 and the second conductive sheet 304 respectively, the first elastic abutting foot 2114 and the second elastic abutting foot 2115 undergo a certain degree of elastic deformation. At this time, the free end of the first bent part 2114i contacts the outer side of the second arc-shaped bent part 2114h2, the free end of the second bent part 2114j contacts the outer side of the first arc-shaped bent part 2114h1, the free end of the third bent part 2115i contacts the outer side of the fourth arc-shaped bent part 2115h2, and the free end of the fourth bent part 2115j contacts the outer side of the third arc-shaped bent part 2115h1.

[0231] Please combine Figures 80 to 83As shown in another embodiment of the present invention, the first resilient abutment foot 2114 includes a first mounting piece 2114a, a first connecting portion 2114c connected to the bottom of the first mounting piece 2114a, a first abutment arm 2114e connected to the first connecting portion 2114c, and a first retaining arm 2114k connected to the first abutment arm 2114e and extending toward the first mounting piece 2114a. In the embodiment illustrated in the present invention, the first mounting piece 2114a extends along the second direction A2-A2, the first connecting portion 2114c protrudes outward relative to the first mounting piece 2114a along the third direction A3-A3, and the bottom of the first abutment arm 2114e is provided with a first pressing portion 2114e1. The first pressing portion 2114e1 is configured to resiliently abut against the first conductive sheet 303. In the embodiment illustrated in the present invention, the first pressing portion 2114e1 is fixed to the first conductive sheet 303 without welding. The first retaining arm 2114k extends upward at an angle and is located beside the first mounting plate 2114a.

[0232] Similarly, the second resilient abutment foot 2115 includes a third mounting piece 2115a, a third connecting portion 2115c connected to the bottom of the third mounting piece 2115a, a second abutment arm 2115e connected to the third connecting portion 2115c, and a second retaining arm 2115k connected to the second abutment arm 2115e and protruding towards the third mounting piece 2115a. In the illustrated embodiment of the invention, the third mounting piece 2115a extends along the second direction A2-A2, the third connecting portion 2115c protrudes outward relative to the third mounting piece 2115a along the third direction A3-A3, and the bottom of the second abutment arm 2115e is provided with a second pressing portion 2115e1. The second pressing portion 2115e1 is configured to resiliently abut against the second conductive sheet 304. In the illustrated embodiment of the invention, the second pressing portion 2115e1 is fixed to the second conductive sheet 304 without welding. The second retaining arm 2115k extends upward at an angle and is located beside the third mounting piece 2115a.

[0233] In the embodiment illustrated in the present invention, the first elastic abutment foot 2114 and the second elastic abutment foot 2115 can share parts to save costs.

[0234] During assembly, the first tail portion 211c of the first conductive terminal S1 is sandwiched between the first mounting plate 2114a and the first retaining arm 2114k. The first mounting plate 2114a contacts one side of the first tail portion 211c of the first conductive terminal S1, and the first retaining arm 2114k contacts the other side of the first tail portion 211c of the first conductive terminal S1. By making the first retaining arm 2114k contact the first tail portion 211c of the first conductive terminal S1, the contact reliability between the first conductive terminal S1 and the first elastic abutment foot 2114 can be improved. In one embodiment of the present invention, the first mounting plate 2114a is welded and fixed to the first tail portion 211c of the first conductive terminal S1. Similarly, the first tail portion 211c of the second conductive terminal S2 is sandwiched between the third mounting plate 2115a and the second retaining arm 2115k. The third mounting plate 2115a contacts one side of the first tail portion 211c of the second conductive terminal S2, and the second retaining arm 2115k contacts the other side of the first tail portion 211c of the second conductive terminal S2. By making the second retaining arm 2115k contact the first tail portion 211c of the second conductive terminal S2, the contact reliability between the second conductive terminal S2 and the second elastic abutment foot 2115 can be improved. In one embodiment of the present invention, the third mounting plate 2115a is welded and fixed to the first tail portion 211c of the second conductive terminal S2.

[0235] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present invention should be based on those skilled in the art. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A second connector, characterized in that, include: Second shell; as well as A plug-in module, at least partially disposed in the second housing, the plug-in module including a second terminal module, the second terminal module including a second terminal module, a second shielding sleeve at least partially surrounding the second terminal module, and a conductive element at least partially disposed on one side of the second shielding sleeve; the second terminal module including a first mating terminal, the first mating terminal including a first mating portion, the conductive element having a first plug-in hole, the first plug-in hole being at least partially located at one end of the first mating portion.

2. The second connector as claimed in claim 1, characterized in that: The second shielding sleeve includes a cylindrical part, the cylindrical part having a hollow second cavity, the second terminal module being at least partially located in the second cavity, and the cross-sectional area of ​​the first insertion hole being smaller than the cross-sectional area of ​​the second cavity.

3. The second connector as described in claim 2, characterized in that: The second shielding sleeve includes a first shielding shell and a second shielding shell, wherein the first shielding shell and the second shielding shell are separately disposed and fixed together.

4. The second connector as described in claim 3, characterized in that: The first shielding housing includes a first mounting end and a first extension connected to the first mounting end; The second shielding housing includes a second mounting end and a second extension connected to the second mounting end; the first mounting end cooperates with the second mounting end, and the cylindrical portion is formed by the cooperation of the first extension and the second extension.

5. The second connector as described in claim 4, characterized in that: The conductive element includes a head and an insertion portion connected to the head, the insertion portion being at least partially inserted into the second cavity.

6. The second connector as described in claim 5, characterized in that: The first extension portion is provided with a first mounting notch, and the second extension portion is provided with a second mounting notch; The insertion part is provided with a first mounting protrusion and a second mounting protrusion on both sides; the first mounting protrusion and the second mounting protrusion are respectively inserted into the first mounting notch and the second mounting notch.

7. The second connector as claimed in claim 5, characterized in that: The insertion part is provided with at least one snap-fit ​​protrusion, and the second shielding sleeve is provided with a snap-fit ​​opening that engages with the snap-fit ​​protrusion.

8. The second connector as claimed in claim 5, characterized in that: The cylindrical body is octagonal, and the head is octagonal and matches the shape of the cylindrical body.

9. The second connector as claimed in claim 1, characterized in that: The first docking part is provided with a first accommodating space, and the first insertion hole of the conductive component is connected to the first accommodating space.

10. The second connector as claimed in claim 1, characterized in that: The second terminal module includes a second mating terminal, the second mating terminal includes a second mating portion, and the conductive element is provided with a second insertion hole, the second insertion hole being at least partially located at one end of the second mating portion.

11. The second connector as claimed in claim 10, characterized in that: The cross-sectional area of ​​the second insertion hole is smaller than the cross-sectional area of ​​the second cavity.

12. The second connector as claimed in claim 10, characterized in that: The second docking portion is provided with a second accommodating space, and the second insertion hole is connected to the second accommodating space of the conductive component.

13. The second connector as claimed in claim 1, characterized in that: The conductive component is a metal block.

14. The second connector as claimed in claim 1, characterized in that: The conductive component and the second shielding sleeve are either separately or integrally configured.

15. A connector assembly, characterized in that, include: A first connector, the first connector comprising: First shell; and A first terminal module, at least partially disposed in the first housing; the first terminal module includes a first terminal module, the first terminal module including a first conductive terminal and a first shielding sleeve, the first conductive terminal including a first contact portion, the first contact portion including a first segment, a second segment connected to the first segment, and a third segment connected to the second segment, the second segment being located between the first segment and the third segment, the first shielding sleeve at least partially covering the first segment in the length direction of the first segment, the second segment and the third segment both extending protruding beyond the first shielding sleeve; and The second connector is the second connector as described in any one of claims 1 to 14; the second terminal module includes an insulating block, and the first mating portion of the first mating terminal is at least partially located in the insulating block; When the first connector and the second connector are fully mated, the third segment of the first contact portion of the first conductive terminal of the first connector passes through the first insertion hole and contacts the first mating portion of the first mating terminal; the second segment of the first contact portion of the first conductive terminal is at least partially inserted into the insulating block.

16. The connector assembly as claimed in claim 15, characterized in that: When the first connector and the second connector are fully mated, the first shielding sleeve is at least partially received in the first insertion hole.

17. The connector assembly as claimed in claim 15, characterized in that: When the first connector and the second connector are in a first incomplete mating state, at least a second segment of the first contact portion of the first conductive terminal enters the first insertion hole of the conductive member.

18. The connector assembly as claimed in claim 17, characterized in that: When the first connector and the second connector are in a first incomplete mating state, the second segment of the first contact portion of the conductive element and the first contact portion of the first conductive terminal form a first air gap in the radial direction, and the second segment of the first contact portion of the first conductive terminal is surrounded circumferentially by the first air gap.

19. The connector assembly as claimed in claim 17, characterized in that: When the first connector and the second connector are in a second incomplete mating state, at least part of the third segment of the first contact portion of the first conductive terminal enters the first insertion hole of the conductive member.

20. The connector assembly as claimed in claim 19, characterized in that: When the first connector and the second connector are in a second incomplete mating state, the third segment of the first contact portion of the conductive element and the first contact portion of the first conductive terminal form a second air gap in the radial direction, and the third segment of the first contact portion of the first conductive terminal is surrounded circumferentially by the second air gap.

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