Electric connector and connector assembly

Abstract

An electric connector comprises a conductive shell, a plurality of conductive terminals, a first cable and a first shielding sheet. The conductive terminals comprise a plurality of first conductive terminals and a plurality of first plate end terminals. The first plate end terminal comprises a first grounding terminal and a first plate end additional terminal. Each first plate end terminal includes a first mounting tail. The first grounding terminal comprises a first abutting part. The first cable is electrically connected with the first conductive terminal. And the first shielding sheet is in contact with the first abutting part, so that the first shielding sheet can be grounded with the circuit board through the first mounting tail part of the first grounding terminal. According to the arrangement, the grounding structure of the electric connector is optimized. The invention further discloses a connector assembly with the electric connector.

Description

Background Art

[0002] The connector assembly in the related art includes an electrical connector, a shielding shell and a light guide, wherein the electrical connector includes an insulating body, a plurality of conductive terminals mounted on the insulating body and cables connected to a portion of the conductive terminals. The plurality of conductive terminals include high-speed signal terminals and non-high-speed signal terminals.

[0003] As the requirements for signal transmission of electrical connectors continue to increase, cables are used in related technologies to transmit high-speed signals, while non-high-speed signal terminals are often installed on circuit boards.

[0004] However, there is still room for improvement in the electrical connector and connector assembly in the related art. Summary of the invention

[0005] An object of the present invention is to provide an electrical connector and a connector assembly with improved structures.

[0006] To achieve the above object, the present invention adopts the following technical solution: an electrical connector, comprising:

[0007] A conductive housing, wherein the conductive housing is provided with a receiving slot extending along a first direction and configured to receive the docking connector;

[0008] A plurality of conductive terminals, the conductive terminals are arranged in the conductive housing, the conductive terminals include a plurality of first conductive terminals and a plurality of first board-end terminals; the first board-end terminals include a first grounding terminal and a first board-end additional terminal located beside the first grounding terminal; each of the first board-end terminals includes a first mounting tail configured to be mounted on a circuit board; the first grounding terminal includes a first abutting portion;

[0009] a first cable, the first cable being electrically connected to the first conductive terminal; and

[0010] A first shielding piece is in contact with a first abutting portion of the first grounding terminal, so that the first shielding piece can be grounded to the circuit board through a first mounting tail portion of the first grounding terminal.

[0011] As a further improved technical solution of the present invention, each first conductive terminal includes a first contact arm and a first tail portion, wherein the first contact arm includes a first contact portion protruding into the receiving slot;

[0012] The first board-end additional terminal comprises a first extension portion and a first additional contact arm connected to the first extension portion, wherein the first additional contact arm comprises a first additional contact portion protruding into the receiving slot;

[0013] The first cable is electrically connected to the first tail of the first conductive terminal;

[0014] The first board end terminal further includes a second grounding terminal, the first board end additional terminal is located between the first grounding terminal and the second grounding terminal; the second grounding terminal includes a second abutting portion;

[0015] The first shielding sheet contacts the second abutting portion of the second grounding terminal, so that the first shielding sheet can be grounded to the circuit board through the first mounting tail portion of the second grounding terminal;

[0016] The first shielding sheet does not contact the first extending portion of the first board-end additional terminal.

[0017] As a further improved technical solution of the present invention, the first shielding sheet is fixed to the first abutting portion of the first grounding terminal and the second abutting portion of the second grounding terminal by welding.

[0018] As a further improved technical solution of the present invention, neither the first grounding terminal nor the second grounding terminal is provided with any elastic contact arm protruding into the receiving slot and configured to be electrically connected to the docking connector.

[0019] As a further improved technical solution of the present invention, the first abutting portion, the second abutting portion and the first extending portion are parallel to each other.

[0020] As a further improved technical solution of the present invention, the first abutting portion and the second abutting portion are located at a first height along the second direction, the first extending portion is located at a second height along the second direction, and the first height is different from the second height.

[0021] As a further improved technical solution of the present invention, the electrical connector includes at least one first insulating block fixed on the first extension portion, the first additional contact arm extends out of the first insulating block, and the first shielding sheet is at least partially supported on the first insulating block.

[0022] As a further improved technical solution of the present invention, the first insulating block is provided with at least one first positioning protruding column, the first shielding sheet is provided with at least one first positioning through-hole, and the first positioning protruding column passes through the first positioning through-hole.

[0023] As a further improved technical solution of the present invention, the first shielding sheet includes a first main body portion in contact with the conductive housing and a first plate-shaped extension portion extending from the first main body portion, and the first plate-shaped extension portion is in contact with a first abutting portion of the first grounding terminal and a second abutting portion of the second grounding terminal;

[0024] The first main body is provided with a plurality of first notches, the first cable comprises a first core, a first insulator wrapped on the first core, and a first shielding layer wrapped on the first insulator, the first core is fixed to the first tail of the first conductive terminal by welding, the first notch corresponds to the first shielding layer, and the first notch is configured to be filled with solder so that the first main body is fixed to the first shielding layer by welding.

[0025] As a further improved technical solution of the present invention, the length of the first extension portion along the first direction is greater than the length of the first abutment portion along the first direction, and the length of the first extension portion along the first direction is greater than the length of the second abutment portion along the first direction.

[0026] As a further improved technical solution of the present invention, the first mounting tail of the first grounding terminal is perpendicular to the first abutting portion of the first grounding terminal, the first mounting tail of the second grounding terminal is perpendicular to the second abutting portion of the second grounding terminal, and the first mounting tail of the first board-end additional terminal is perpendicular to the first extending portion of the first board-end additional terminal;

[0027] Each first mounting tail portion is provided with a first mounting through hole, and the first mounting tail portion is configured to be inserted into the first conductive hole of the circuit board in an elastically deformed manner.

[0028] As a further improved technical solution of the present invention, the electrical connector includes a first module; the first module includes:

[0029] a first conductive housing; and

[0030] a first terminal module, wherein the first terminal module is at least partially disposed in the first conductive housing, the first terminal module includes the first conductive terminal, and the first conductive terminal is not in contact with the first conductive housing;

[0031] The conductive housing includes the first conductive housing.

[0032] As a further improved technical solution of the present invention, the first conductive terminal of the first terminal module includes a first signal terminal and a second signal terminal;

[0033] The first module also includes a first retaining block fixed on the first signal terminal and the second signal terminal, the first retaining block is provided with a first positioning protruding column, the first shielding sheet is provided with a first positioning through hole, and the first positioning protruding column passes through the first positioning through hole.

[0034] As a further improved technical solution of the present invention, the electrical connector includes a second module; the second module includes:

[0035] a second conductive housing; and

[0036] A second terminal module, wherein the second terminal module is at least partially disposed in the second conductive housing, and the second terminal module includes a plurality of second conductive terminals, and the second conductive terminals are not in contact with the second conductive housing;

[0037] The conductive shell includes the second conductive shell;

[0038] The receiving slot is formed by the first conductive shell and the second conductive shell.

[0039] The present invention also discloses a connector assembly, which comprises:

[0040] An electrical connector, wherein the electrical connector is the aforementioned electrical connector;

[0041] A shielding shell, the shielding shell is configured to be installed on a circuit board, the shielding shell includes a receiving cavity, the receiving cavity is connected to the receiving slot along a first direction, the receiving cavity and the receiving slot are configured to jointly receive a docking connector along the first direction; a first cable passes through the shielding shell along the first direction; the shielding shell is provided with a retaining arm; and

[0042] A light guide tube, the light guide tube comprising a first tube body portion, a second tube body portion and a first connecting portion connecting the first tube body portion and the second tube body portion, the first tube body portion and the second tube body portion are respectively located on both sides of the first cable; the first connecting portion is provided with a mounting groove, the retaining arm is at least partially inserted into the mounting groove to fix the light guide tube.

[0043] As a further improved technical solution of the present invention, the retaining arm includes a first retaining arm and a second retaining arm spaced apart from the first retaining arm, the first retaining arm is provided with a first hook, the second retaining arm is provided with a second hook, and the first hook and the second hook are both locked with the first connecting portion.

[0044] As a further improved technical solution of the present invention, the protruding directions of the first hook portion and the second hook portion are opposite.

[0045] As a further improved technical solution of the present invention, the retaining arm also includes an insert plate portion located between the first buckling arm and the second buckling arm, the first buckling arm, the insert plate portion and the second buckling arm are arranged in sequence at intervals, and the insert plate portion is at least partially inserted into the installation slot.

[0046] As a further improved technical solution of the present invention, the first buckling arm, the plug plate portion and the second buckling arm all pass through the first connecting portion from the installation slot.

[0047] As a further improved technical solution of the present invention, the light guide includes a second connecting portion connecting the first tube body portion and the second tube body portion, the second connecting portion includes an extended protrusion protruding along a second direction, the extended protrusion includes a convex column portion and a neck connected to the convex column portion; the second direction is perpendicular to the first direction;

[0048] The shielding shell includes a bracket portion, which includes a first bracket arm, a second bracket arm, and a mounting slot located between the first bracket arm and the second bracket arm. The neck is tightly clamped in the mounting slot, and the boss portion protrudes from the bracket portion along the first direction.

[0049] As a further improved technical solution of the present invention, the end of the first bracket arm is provided with a first guide surface and a first recess located at the lower part of the first guide surface along the second direction, and the end of the second bracket arm is provided with a second guide surface and a second recess located at the lower part of the second guide surface along the second direction; the first guide surface and the second guide surface form a bell mouth for guiding the neck; the first recess and the second recess form a buffer mouth, the dimension of the buffer mouth along the third direction is greater than the dimension of the mounting slot along the third direction, and the third direction is perpendicular to the first direction and the second direction.

[0050] As a further improved technical solution of the present invention, the shielding shell includes a connecting wall connected to the holding arm, and the connecting wall is provided with at least one opening;

[0051] The electrical connector includes an outer insulating shell fixed on the conductive shell, the outer insulating shell is provided with at least one mounting boss, and the mounting boss passes through the opening; the mounting boss is fixed in the opening by hot melting, so that the connecting wall and the electrical connector are combined into a whole.

[0052] Compared with the prior art, the electrical connector of the present invention is provided with a first shielding sheet, and the first shielding sheet contacts the first abutting portion of the first grounding terminal, so that the first shielding sheet can be grounded with the circuit board through the first mounting tail of the first grounding terminal. Such a configuration optimizes the grounding structure of the electrical connector. The present invention also discloses a connector assembly having the electrical connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 is a three-dimensional schematic diagram of a connector assembly of the present invention in one embodiment;

[0054] Figure 2 yes Figure 1 A three-dimensional schematic diagram from another angle;

[0055] Figure 3 yes Figure 2 A partial enlarged view of the circled portion B;

[0056] Figure 4 yes Figure 2 A three-dimensional schematic diagram from another angle;

[0057] Figure 5 yes Figure 1 The main view;

[0058] Figure 6 yes Figure 1 Rear view of

[0059] Figure 7 yes Figure 1 Right view of;

[0060] Figure 8 yes Figure 1 A top view of

[0061] Fig. 9 yes Figure 2 A partially exploded perspective view of a light pipe being separated;

[0062] Fig.10 yes Fig. 9 A partial enlarged view of the circled portion C;

[0063] Fig.11 yes Fig. 9 Partial three-dimensional exploded view from another angle;

[0064] Fig.12 yes Fig.11 A partial enlarged view of the circled portion D;

[0065] Fig.13 yes Fig. 9 Further exploded perspective view;

[0066] Fig.14 yes Fig.13 A three-dimensional exploded view from another angle;

[0067] Fig.15 yes Fig.13 A perspective exploded view of the middle shielding shell;

[0068] Fig.16 yes Fig.15 A three-dimensional exploded view from another angle;

[0069] Fig.17 yes Fig.15 A three-dimensional exploded view from another angle;

[0070] Fig.18is a three-dimensional schematic diagram of an electrical connector of the present invention in one embodiment;

[0071] Fig.19 yes Fig.18 A partial exploded view of the

[0072] Fig. 20 yes Fig.19 Partial three-dimensional exploded view from another angle;

[0073] Fig.21 yes Fig.19 A three-dimensional exploded view of the first module and the second module;

[0074] Fig. 22 yes Fig.21 A three-dimensional exploded view from another angle;

[0075] Fig.23 is a top view when the first module and the second module are misaligned;

[0076] Fig.24 is a bottom view when the first module and the second module are misaligned;

[0077] Fig.25 Yes Fig.19 A front view behind the outer insulating shell;

[0078] Fig.26 yes Fig.21 A partial exploded perspective view of

[0079] Fig. 27 yes Fig.26 A partial three-dimensional exploded view of the first module;

[0080] Fig.28 yes Fig. 27 A partially exploded perspective view from another angle;

[0081] Fig.29 yes Fig.26 A partial exploded perspective view of the second module;

[0082] Fig.30 yes Fig.29 A partially exploded perspective view from another angle;

[0083] Fig.31 yes Fig. 27 A partial enlarged view of the middle frame portion E;

[0084] Fig.32 Yes Fig.29 A partial enlarged view of the middle frame portion F;

[0085] Fig.33 Yes Fig. 27A further partial three-dimensional exploded view of the first conductive shell, the first insulating fixing block and the first grounding plate;

[0086] Fig.34 Yes Fig.29 A further partial three-dimensional exploded view of the second conductive shell, the second insulating fixing block and the second grounding plate;

[0087] Fig.35 yes Fig.33 A partial enlarged view of the circled portion H;

[0088] Fig.36 yes Fig.34 A partial enlarged view of the circled portion I;

[0089] Fig.37 yes Fig.33 A partially exploded perspective view from another angle;

[0090] Fig.38 yes Fig.34 A partially exploded perspective view from another angle;

[0091] Fig.39 yes Fig.33 Further partial exploded perspective view;

[0092] Fig.40 yes Fig.34 Further partial exploded perspective view;

[0093] Fig.41 yes Fig.39 A partially exploded perspective view from another angle;

[0094] Fig.42 yes Fig.39 Further exploded perspective view;

[0095] Fig.43 yes Fig.40 Further exploded perspective view;

[0096] Fig.44 is a three-dimensional schematic diagram of a portion of the first module;

[0097] Fig.45 is a three-dimensional schematic diagram of a portion of the second module;

[0098] Fig.46 yes Fig.39 and Fig.40 A partial exploded perspective view of a portion of the first module and a portion of the second module in another embodiment;

[0099] Fig.47 yes Fig.46 A partially exploded perspective view from another angle;

[0100] Fig.48 is along Figure 5 Schematic diagram of the cross section of the middle JJ line;

[0101] Fig.49 yes Fig.48 A partial enlarged view of the middle frame portion K;

[0102] Fig.50 is along Figure 5 Schematic diagram of the cross section of the LL line;

[0103] Fig.51 yes Fig.50 A partial enlarged view of the middle frame portion N;

[0104] Fig.52 is along Figure 8 Schematic cross-section of the OO line;

[0105] Fig.53 yes Fig.52 A partial enlarged view of the middle frame portion P. DETAILED DESCRIPTION

[0106] The exemplary embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. If there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; on the contrary, they are only examples of devices, products and / or methods consistent with some aspects of the present invention as recorded in the claims of the present invention.

[0107] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the scope of protection of the present invention. The singular forms "a", "said" or "the" used in the specification and claims of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.

[0108] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the existence of at least one. Unless otherwise specified, words such as "front", "rear", "upper", "lower" and similar words appearing in the present invention are only for the convenience of explanation and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprise" are an open-ended expression, meaning that the elements appearing before "include" or "comprise" include the elements appearing after "include" or "comprise" and their equivalents, which does not exclude that the elements appearing before "include" or "comprise" may also include other elements. If "several" appears in the present invention, it means two or more.

[0109] Please refer to Figures 1 to 14As shown, in the first embodiment of the present invention, a connector assembly is disclosed, which includes an electrical connector 100, a circuit board 400, and a docking connector (not shown) for at least partially inserting into the electrical connector 100. In the illustrated embodiment of the present invention, the electrical connector 100 is an OSFP (Octal Small Form-factor Pluggable) socket connector; correspondingly, the docking connector is an OSFP plug connector. More specifically, in the illustrated embodiment of the present invention, the electrical connector 100 is a socket connector. Of course, those skilled in the art will understand that the electrical connector 100 may also be an SFP (Small Form-factor Pluggable) socket connector, a QSFP (Quad Small Form-factor Pluggable) socket connector, a QSFP-DD (Quad Small Form-factor Pluggable-Double Density) socket connector, an SFP-DD (Small Form-factor Pluggable-Double Density) socket connector, or a DSFP (Dual Chanel Small Form-factor Pluggable) socket connector, etc.; accordingly, the docking connector is an SFP plug connector, a QSFP plug connector, a QSFP-DD plug connector, an SFP-DD plug connector, or a DSFP plug connector, etc. Those skilled in the art will understand that the basic architecture of the above-mentioned types of electrical connectors 100 is specified by the corresponding association standards, and the present invention will not be repeated here. Of course, those skilled in the art will understand that the electrical connector 100 may also be other types of electrical connectors, including but not limited to USB connectors, HDMI connectors, DisplayPort connectors, RJ45 connectors, Thunderbolt connectors, etc.

[0110] Please combine Fig.13 As shown, in the illustrated embodiment of the invention, the circuit board 400 includes a plurality of first mounting holes 401 and a plurality of second mounting holes 402. The plurality of first mounting holes 401 are arranged in a first row along a first direction A1-A1 (e.g., front-to-back direction), and the plurality of second mounting holes 402 are arranged in a second row parallel to the first row along the first direction A1-A1. In addition, the circuit board 400 is further provided with a plurality of first conductive holes 403, a plurality of second conductive holes 404, a first light-emitting element 405, and a second light-emitting element 406. The first light-emitting element 405 and the second light-emitting element 406 include, but are not limited to, LED light emitters.

[0111] The docking connector includes a docking module, such as a tongue plate. The tongue plate includes an upper surface, a lower surface, a plurality of first contact pieces exposed on the upper surface, and a plurality of second contact pieces exposed on the lower surface. Fig.18 As shown, in the illustrated embodiment of the present invention, the electrical connector 100 is provided with a receiving slot 101 for at least partially receiving the docking module. To simplify the description of the specific embodiment of the present invention, the plugging and unplugging direction of the docking module and the electrical connector 100 is a first direction A1-A1 (e.g., front-to-back direction); the thickness direction of the receiving slot 101 is a second direction A2-A2 (e.g., up-down direction); the width direction of the receiving slot 101 is a third direction A3-A3 (e.g., left-right direction). The first direction A1-A1, the second direction A2-A2, and the third direction A3-A3 are perpendicular to each other.

[0112] Please combine Figure 18 to Figure 53 As shown, in the illustrated embodiment of the present invention, the electrical connector 100 includes a first module M1, a second module M2, and an outer insulating shell 7 fixed to the first module M1 and the second module M2, wherein the first module M1 and the second module M2 are separately arranged and fixed together. In one embodiment of the present invention, the outer insulating shell 7 is made of an insulating material, which is overmolded on the first module M1 and the second module M2 to be combined with the first module M1 and the second module M2 as a whole. Specifically, in the illustrated embodiment of the present invention, the outer insulating shell 7 includes a first outer insulating shell 7a and a second outer insulating shell 7b.

[0113] The first outer insulating shell 7a and the second outer insulating shell 7b each include at least one positioning boss 71. In the illustrated embodiment of the present invention, the positioning boss 71 on the first outer insulating shell 7a includes a plurality of first positioning bosses 711; the positioning boss 71 on the second outer insulating shell 7b includes a plurality of second positioning bosses 712. In the illustrated embodiment of the present invention, the plurality of first positioning bosses 711 are two and are arranged at intervals along the first direction A1-A1. The plurality of second positioning bosses 712 are two and are arranged at intervals along the third direction A3-A3. In this arrangement, the two first positioning bosses 711 and the two second positioning bosses 712 can prevent the electrical connector 100 and the shielding shell 500 from changing their relative positions after assembly. The first positioning boss 711 and the second positioning boss 712 are opposite to each other.

[0114] Specifically, please combine Fig.19As shown, the first positioning convex column 711 includes a supporting portion 7111 and a positioning portion 7112 connected to the supporting portion 7111 and located at the end of the first positioning convex column 711 along the second direction A2-A2. In the illustrated embodiment of the present invention, the positioning portion 7112 and the second positioning convex column 712 are both cylindrical. In addition, in order to increase the structural strength of the supporting portion 7111, the supporting portion 7111 is designed to be relatively thicker than the positioning portion 7112.

[0115] In one embodiment of the present invention, the electrical connector 100 includes a housing, an insulating fixing block 2 fixed to the housing, a plurality of conductive terminals 3 installed on the housing, and cables 5 connected to the conductive terminals 3 .

[0116] In one embodiment of the present invention, the housing is a conductive housing 1. The conductive housing 1 is a metal housing made of a metal material to further improve the shielding effect and the quality of signal transmission. In another embodiment of the present invention, the conductive housing 1 may also be a composite housing formed by electroplating a metal material on an insulating material, and the composite housing can also improve the shielding effect and the quality of signal transmission.

[0117] Please combine Figures 21 to 30 As shown, in one embodiment of the present invention, the conductive housing 1 includes a first conductive housing 11 and a second conductive housing 12. The first conductive housing 11 and the second conductive housing 12 are fixed together, for example, after the first conductive housing 11 and the second conductive housing 12 are assembled, they are fixed together by, for example, welding. In the illustrated embodiment of the present invention, the first conductive housing 11 of the first module M1 and the second conductive housing 12 of the second module M2 are separately arranged and fixed together to form the receiving slot 101 together.

[0118] In one embodiment of the present invention, the first conductive housing 11 includes a first base 111, a first protruding portion 112 extending forward from the first base 111, and a plurality of first terminal module mounting grooves 113 penetrating the first base 111 and the first protruding portion 112 along the first direction A1-A1. The first protruding portion 112 is provided with a second upper surface 1121, a second lower surface 1122, and a plurality of first filling grooves 1123 penetrating the second upper surface 1121 upward along the second direction A2-A2. The first filling groove 1123 penetrating the first front end surface 1120 of the first protruding portion 112 forward along the first direction A1-A1. The first protruding portion 112 also includes a plurality of first positioning columns 1124 protruding upward from the second upper surface 1121 along the second direction A2-A2.

[0119] The plurality of first terminal module mounting grooves 113 are arranged at intervals along the third direction A3-A3. The first conductive shell 11 includes a plurality of first partition walls 114 arranged at intervals along the third direction A3-A3. Two adjacent first terminal module mounting grooves 113 are separated by corresponding first partition walls 114 along the third direction A3-A3. With such arrangement, each first terminal module mounting groove 113 is relatively independent, thereby reducing signal crosstalk and improving the quality of data transmission. Each first partition wall 114 is provided with a first positioning block 1141 protruding along the third direction A3-A3. The first positioning block 1141 is located at the end away from the first front end face 1120.

[0120] In one embodiment of the present invention, the second conductive housing 12 includes a second base 121, a second protruding portion 122 extending forward from the second base 121, and a plurality of second terminal module mounting grooves 123 penetrating the second base 121 and the second protruding portion 122 along the first direction A1-A1. The second protruding portion 122 is provided with a fourth upper surface 1221, a fourth lower surface 1222, and a plurality of second filling grooves 1223 penetrating downwardly through the fourth lower surface 1222. The second filling groove 1223 penetrating forwardly through the second front end surface 1220 of the second protruding portion 122. The second protruding portion 122 also includes a plurality of second positioning columns 1224 protruding downwardly from the second lower surface 1122.

[0121] In the illustrated embodiment of the present invention, the plurality of second terminal module mounting grooves 123 are arranged at intervals along the third direction A3-A3. The second conductive housing 12 includes a plurality of second partition walls 124 arranged at intervals along the third direction A3-A3. Two adjacent second terminal module mounting grooves 123 are separated by corresponding second partition walls 124 along the third direction A3-A3. With such arrangement, each second terminal module mounting groove 123 is relatively independent, thereby reducing signal crosstalk and improving the quality of data transmission. Each second partition wall 124 is provided with a second positioning block 1241 that is raised along the third direction A3-A3. The second positioning block 1241 is located at the end away from the second front end face 1220.

[0122] Please combine Figures 26 to 30As shown, in the illustrated embodiment of the present invention, the insulating fixing block 2 includes a first insulating fixing block 21 and a second insulating fixing block 22. The first insulating fixing block 21 is fixed in the first filling groove 1123, and the second insulating fixing block 22 is fixed in the second filling groove 1223. Preferably, in order to increase the bonding force between the first insulating fixing block 21 and the first conductive shell 11, the first insulating fixing block 21 is formed in the first filling groove 1123. Similarly, in order to increase the bonding force between the second insulating fixing block 22 and the second conductive shell 12, the second insulating fixing block 22 is formed in the second filling groove 1223.

[0123] The first insulating fixing block 21 is provided with a plurality of first slots 211 and a plurality of second slots 212, wherein adjacent first slots 211 and second slots 212 form a group and communicate with the corresponding first terminal module mounting slot 113. The first insulating fixing block 21 is further provided with a first front surface 210, and the first front surface 210 is coplanar with the first front end surface 1120 of the first protrusion 112.

[0124] Similarly, the second insulating fixing block 22 is provided with a plurality of third slots 221 and a plurality of fourth slots 222, wherein adjacent third slots 221 and fourth slots 222 form a group and communicate with the corresponding second terminal module mounting groove 123. The second insulating fixing block 22 is provided with a second front surface 220, and the second front surface 220 is coplanar with the second front end surface 1220 of the second protruding portion 122.

[0125] Please combine Figures 33 to 47 As shown, the plurality of conductive terminals 3 include a plurality of first conductive terminals 31, a plurality of second conductive terminals 32, a plurality of first board-end terminals 35, and a plurality of second board-end terminals 36. Each of the first conductive terminals 31 includes a first fixing portion 311 extending along the first direction A1-A1, a first contact arm 310 extending forward from the front end of the first fixing portion 311, and a first tail portion 313 extending backward from the rear end of the first fixing portion 311. The first contact arm 310 includes a first contact portion 3101 extending into the receiving slot 101. The first contact portion 3101 is used to contact the first signal contact piece of the tongue plate. In the illustrated embodiment of the present invention, the first tail portion 313 extends horizontally backward to be electrically connected to the first cable 51.

[0126] Please combine Fig.42As shown, in the illustrated embodiment of the present invention, the plurality of first conductive terminals 31 are divided into a plurality of groups, and each group of first conductive terminals 31 includes a first signal terminal S1 and a second signal terminal S2 adjacent to the first signal terminal S1. Preferably, the first signal terminal S1 and the second signal terminal S2 in each group of first conductive terminals 31 form a differential pair to improve signal transmission speed, which is suitable for high-speed signal transmission.

[0127] In the illustrated embodiment of the present invention, the electrical connector 100 further includes a first retaining block 33 fixed to the first signal terminal S1 and the second signal terminal S2 of each group of first conductive terminals 31. In one embodiment of the present invention, the first signal terminal S1 and the second signal terminal S2 are insert-molded in the first retaining block 33 to form an integral first terminal module 31a. The first contact portions 3101 of the first signal terminal S1 and the second signal terminal S2 in each first terminal module 31a are respectively in contact with the first signal contact piece of the docking module.

[0128] In the illustrated embodiment of the present invention, the first retaining block 33 is fixed to the middle of the first fixing portion 311 of the first signal terminal S1 and the second signal terminal S2. The first retaining block 33 is installed and fixed in the first terminal module installation groove 113, so that the first conductive terminal 31 does not contact with the first conductive shell 11 to cause a short circuit. In the illustrated embodiment of the present invention, the first retaining block 33 includes a first protruding column 331 protruding along the third direction A3-A3 and a first positioning protruding column 332 protruding along the third direction A3-A3, and the protruding direction of the first protruding column 331 is opposite to that of the first positioning protruding column 332. The first protruding column 331 is used to be positioned with the through hole of the first conductive shell 11, and the first protruding column 331 passes through the first conductive shell 11.

[0129] Similarly, each second conductive terminal 32 includes a second fixed portion 321 extending along the first direction A1-A1, a second contact arm 320 extending forward from the front end of the second fixed portion 321, and a second tail portion 323 extending backward from the rear end of the second fixed portion 321. The second contact arm 320 includes a second contact portion 3201 extending into the receiving slot 101. The second contact portion 3201 is used to contact the second signal contact piece of the tongue plate. In the illustrated embodiment of the present invention, the second tail portion 323 extends horizontally backward from the second fixed portion 321 to be electrically connected to the second cable 52.

[0130] Please combine Fig.43As shown, in the illustrated embodiment of the present invention, the plurality of second conductive terminals 32 are divided into a plurality of groups, and each group of second conductive terminals 32 includes a third signal terminal S3 and a fourth signal terminal S4 adjacent to the third signal terminal S3. Preferably, the third signal terminal S3 and the fourth signal terminal S4 in each group of second conductive terminals 32 form a differential pair to improve signal transmission speed, which is suitable for high-speed signal transmission.

[0131] In the illustrated embodiment of the present invention, the electrical connector 100 further includes a second retaining block 34 fixed to the third signal terminal S3 and the fourth signal terminal S4 of each group of second conductive terminals 32. In one embodiment of the present invention, the third signal terminal S3 and the fourth signal terminal S4 are insert-molded in the second retaining block 34 to form an integral second terminal module 32a. The second contact portions 3201 of the third signal terminal S3 and the fourth signal terminal S4 in each second terminal module 32a are respectively in contact with the second signal contact piece of the docking module.

[0132] In the illustrated embodiment of the present invention, the second retaining block 34 is fixed to the middle of the second fixing portion 321 of the third signal terminal S3 and the fourth signal terminal S4. The second retaining block 34 is installed and fixed in the second terminal module installation groove 123, so that the second conductive terminal 32 does not contact with the second conductive shell 12 to cause a short circuit. In the illustrated embodiment of the present invention, the second retaining block 34 includes a second protruding column 341 protruding along the third direction A3-A3 and a second positioning protruding column 342 protruding along the third direction A3-A3, and the protruding direction of the second protruding column 341 is opposite to that of the second positioning protruding column 342. The second protruding column 341 is used to be positioned with the through hole of the second conductive shell 12, and the second protruding column 341 passes through the second conductive shell 12.

[0133] In the illustrated embodiment of the present invention, the electrical connector 100 further includes a first non-high-speed terminal module 33a and a second non-high-speed terminal module 34a. The first non-high-speed terminal module 33a includes at least one first insulating block 33a1, the first board terminal 35 fixed to the first insulating block 33a1, and a first mounting block 37 fixed to the first board terminal 35. It can be understood by those skilled in the art that the first board terminal 35 includes but is not limited to a non-high-speed signal terminal, a power terminal, etc.

[0134] In the illustrated embodiment of the present invention, the first board terminal 35 includes a first grounding terminal G1, a second grounding terminal G2, and at least one first board terminal additional terminal 350 located between the first grounding terminal G1 and the second grounding terminal G2. Each first board terminal 35 includes a first mounting tail 351 configured to be mounted on the circuit board 400. In the illustrated embodiment of the present invention, each first mounting tail 351 is provided with a first mounting through hole 3511, and the first mounting tail 351 is configured to be inserted into the first conductive hole 403 of the circuit board 400 in an elastically deformed manner to achieve electrical conduction with the circuit board 400.

[0135] In addition, the first ground terminal G1 further includes a first abutting portion 3521 (such as Fig.47 The first abutting portion 3521 extends along the first direction A1-A1, the first mounting tail portion 351 of the first grounding terminal G1 extends along the second direction A2-A2, and the first mounting tail portion 351 of the first grounding terminal G1 is perpendicular to the first abutting portion 3521 of the first grounding terminal G1.

[0136] Similarly, the second ground terminal G2 further includes a second abutting portion 3522 (eg Fig.46 The second abutting portion 3522 extends along the first direction A1-A1, the first mounting tail portion 351 of the second grounding terminal G2 extends along the second direction A2-A2, and the first mounting tail portion 351 of the second grounding terminal G2 is perpendicular to the second abutting portion 3522 of the second grounding terminal G2.

[0137] Please combine Fig.42 As shown, the first board-end additional terminal 350 includes a first extension portion 3523 and a first additional contact arm 3524 connected to the first extension portion 3523, and the first additional contact arm 3524 includes a first additional contact portion 3524a protruding into the receiving slot 101. The first extension portion 3523 extends along the first direction A1-A1, and the first mounting tail portion 351 of the first board-end additional terminal 350 extends along the second direction A2-A2, and the first mounting tail portion 351 of the first board-end additional terminal 350 is perpendicular to the first extension portion 3523 of the first board-end additional terminal 350.

[0138] In the illustrated embodiment of the present invention, the first abutting portion 3521, the second abutting portion 3522 and the first extension portion 3523 are parallel to each other. The length of the first extension portion 3523 along the first direction A1-A1 is greater than the length of the first abutting portion 3521 along the first direction A1-A1, and the length of the first extension portion 3523 along the first direction A1-A1 is greater than the length of the second abutting portion 3522 along the first direction A1-A1. Neither the first grounding terminal G1 nor the second grounding terminal G2 is provided with any elastic contact arm that protrudes into the receiving slot 101 and is configured to be electrically connected to the docking connector. In other words, neither the first grounding terminal G1 nor the second grounding terminal G2 is provided with a first additional contact arm 3524 similar to the first board end additional terminal 350.

[0139] In the illustrated embodiment of the present invention, the first abutting portion 3521 and the second abutting portion 3522 are located at a first height along the second direction A2-A2, and the first extending portion 3523 is located at a second height along the second direction A2-A2, and the first height is different from the second height.

[0140] In the illustrated embodiment of the present invention, the first extension portion 3523 of the first board-end additional terminal 350 is partially embedded in the first insulating block 33a1, and the first additional contact arm 3524 extends out of the first insulating block 33a1. The first insulating block 33a1 is provided with at least one first positioning protruding column 33a11.

[0141] The first grounding terminal G1, the second grounding terminal G2 and the first board-end additional terminal 350 are all embedded in the first mounting block 37 to form a whole. The first mounting tail 351 of the first grounding terminal G1, the second grounding terminal G2 and the first board-end additional terminal 350 extends out of the first mounting block 37.

[0142] Similarly, please combine Fig.43 As shown, the second non-high-speed terminal module 34a includes at least one second insulating block 34a1, the second board terminal 36 fixed to the second insulating block 34a1, and a second mounting block 38 fixed to the second board terminal 36. Those skilled in the art can understand that the second board terminal 36 includes but is not limited to a non-high-speed signal terminal, a power terminal, etc.

[0143] In the illustrated embodiment of the present invention, the second board-end terminal 36 includes a third grounding terminal G3, a fourth grounding terminal G4, and at least one second board-end additional terminal 360 located between the third grounding terminal G3 and the fourth grounding terminal G4. Each second board-end terminal 36 includes a second mounting tail 361 configured to be mounted on the circuit board 400. In the illustrated embodiment of the present invention, each second mounting tail 361 is provided with a second mounting through-hole 3611, and the second mounting tail 361 is configured to be inserted into the second conductive hole 404 of the circuit board 400 in an elastically deformed manner to achieve electrical conduction with the circuit board 400.

[0144] In addition, the third ground terminal G3 further includes a third abutting portion 3621. The third abutting portion 3621 extends along the first direction A1-A1, the second mounting tail portion 361 of the third ground terminal G3 extends along the second direction A2-A2, and the second mounting tail portion 361 of the third ground terminal G3 is perpendicular to the third abutting portion 3621 of the third ground terminal G3.

[0145] Similarly, the fourth ground terminal G4 further includes a fourth abutting portion 3622. The fourth abutting portion 3622 extends along the first direction A1-A1, the second mounting tail portion 361 of the fourth ground terminal G4 extends along the second direction A2-A2, and the second mounting tail portion 361 of the fourth ground terminal G4 is perpendicular to the fourth abutting portion 3622 of the fourth ground terminal G4.

[0146] The second board-end additional terminal 360 includes a second extension portion 3623 and a second additional contact arm 3624 connected to the second extension portion 3623, and the second additional contact arm 3624 includes a second additional contact portion 3624a protruding into the receiving slot 101. The second extension portion 3623 extends along the first direction A1-A1, and the second mounting tail portion 361 of the second board-end additional terminal 360 extends along the second direction A2-A2, and the second mounting tail portion 361 of the second board-end additional terminal 360 is perpendicular to the second extension portion 3623 of the second board-end additional terminal 360.

[0147] In the illustrated embodiment of the present invention, the third abutting portion 3621, the fourth abutting portion 3622 and the second extension portion 3623 are parallel to each other. The length of the second extension portion 3623 along the first direction A1-A1 is greater than the length of the third abutting portion 3621 along the first direction A1-A1, and the length of the second extension portion 3623 along the first direction A1-A1 is greater than the length of the fourth abutting portion 3622 along the first direction A1-A1. Neither the third grounding terminal G3 nor the fourth grounding terminal G4 is provided with any elastic contact arm that protrudes into the receiving slot 101 and is configured to be electrically connected to the docking connector. In other words, neither the third grounding terminal G3 nor the fourth grounding terminal G4 is provided with a second additional contact arm 3624 similar to the second board end additional terminal 360.

[0148] In the illustrated embodiment of the present invention, the third abutment portion 3621 and the fourth abutment portion 3622 are located at a third height along the second direction A2-A2, and the second extension portion 3623 is located at a fourth height along the second direction A2-A2, and the third height is different from the fourth height.

[0149] In the illustrated embodiment of the present invention, the second extension portion 3623 of the second board-end additional terminal 360 is partially embedded in the second insulating block 34a1, and the second additional contact arm 3624 extends out of the second insulating block 34a1. The second insulating block 34a1 is provided with at least one second positioning protruding column 34a11.

[0150] Please combine Fig.39 as well as Fig.40 As shown, in one embodiment of the present invention, the first insulating block 33a1 and the second insulating block 34a1 are respectively a plurality of. Fig.46 as well as Fig.47 As shown, in another embodiment of the present invention, the number of the first insulating block 33a1 and the number of the second insulating block 34a1 are only one.

[0151] The third grounding terminal G3, the fourth grounding terminal G4 and the second board-end additional terminal 360 are all embedded in the second mounting block 38 to form a whole. The second mounting tail 361 of the third grounding terminal G3, the fourth grounding terminal G4 and the second board-end additional terminal 360 extends out of the second mounting block 38.

[0152] Please combine Fig.35As shown, in the illustrated embodiment of the present invention, the first cable 51 includes a first core 511, a first insulator 512 wrapped on the first core 511, a first shielding layer 513 (for example, a shielding braided layer) wrapped on the first insulator 512, and a first insulating skin 514 wrapped on the first shielding layer 513.

[0153] Similarly, please combine Fig.36 As shown, the second cable 52 includes a second core 521, a second insulator 522 wrapped around the second core 521, a second shielding layer 523 (e.g., a shielding braided layer) wrapped around the second insulator 522, and a second insulating skin 524 wrapped around the second shielding layer 523. The cable 5 includes the first cable 51 and the second cable 52.

[0154] Please combine Figure 26 to Figure 32 As shown, in one embodiment of the present invention, the electrical connector 100 further includes at least one grounding plate 4 mounted on the conductive housing 1. One end of the grounding plate 4 is fixed relative to the conductive housing 1, and the grounding plate 4 includes a first grounding plate 41 and a second grounding plate 42. In the illustrated embodiment of the present invention, there are two first grounding plates 41 and they are made of metal material; there are also two second grounding plates 42 and they are made of metal material.

[0155] Each first grounding plate 41 is generally U-shaped, and includes a first mounting plate 411, a second mounting plate 412 opposite to the first mounting plate 411, a first connecting plate 413 connecting one side of the first mounting plate 411 and one side of the second mounting plate 412, and a first extending plate 414 extending downward and backward from the other side of the second mounting plate 412. The first mounting plate 411 is provided with a first mounting positioning hole 4111 matched with the first positioning column 1124.

[0156] The first connecting plate 413 is close to and at least partially blocks the first front surface 210 of the first insulating fixing block 21. The first connecting plate 413 is located at the front end of the receiving slot 101 along the first direction A1-A1; when the docking module is inserted, the tongue plate may first contact the first connecting plate 413, which is conducive to the discharge of static electricity. The second mounting plate 412 is provided with a plurality of first grounding spring arms 415 arranged at intervals along the third direction A3-A3. A first grounding spring arm 415 is provided on both sides of the first contact arm 310 of each group of first conductive terminals 31 to improve the shielding effect and improve the quality of signal transmission.

[0157] Please combine Fig.31As shown, the first grounding elastic arm 415 as a whole bulges in a direction away from the first mounting plate 411. Specifically, in the illustrated embodiment of the present invention, the first grounding elastic arm 415 includes a first middle portion 4150, a first elastic arm portion 4151 connecting one end of the first middle portion 4150 and the first connecting plate 413, and a second elastic arm portion 4152 connecting the other end of the first middle portion 4150 and the first extension plate 414. In one embodiment of the present invention, the first middle portion 4150 is provided with a first convex bump 4150a protruding into the receiving slot 101. The first elastic arm portion 4151 is provided with a first abutting elastic arm 4151a extending toward the first middle portion 4150, and a first evacuation groove 4151b corresponding to the first abutting elastic arm 4151a and providing a deformation space for the first abutting elastic arm 4151a. The second elastic arm portion 4152 is provided with a second abutting elastic arm 4152a extending toward the first middle portion 4150, and a second evacuation groove 4152b corresponding to the second abutting elastic arm 4152a and providing deformation space for the second abutting elastic arm 4152a. In the illustrated embodiment of the present invention, the first abutting elastic arm 4151a and the second abutting elastic arm 4152a are respectively located on both sides of the first middle portion 4150. The first abutting elastic arm 4151a and the second abutting elastic arm 4152a are aligned along the first direction A1-A1. The free end of the first abutting elastic arm 4151a and the free end of the second abutting elastic arm 4152a are both close to the first middle portion 4150. The first abutting elastic arm 4151a, the first convex bump 4150a and the second abutting elastic arm 4152a are all in contact with the first grounding contact piece of the docking module. This three-point contact method is conducive to achieving a better shielding effect.

[0158] In one embodiment of the present invention, the first elastic arm portion 4151 is provided with a first frame body 4151c which is surrounded on all sides. The first clearance groove 4151b is a closed groove, and is surrounded by the first frame body 4151c. The first abutting elastic arm 4151a is connected to a wall portion of the first frame body 4151c, and the other three walls of the first frame body 4151c respectively surround the other three sides of the first abutting elastic arm 4151a. In one embodiment of the present invention, by providing the first frame body 4151c surrounding the first abutting elastic arm 4151a, better protection can be provided to the first abutting elastic arm 4151a to prevent the first abutting elastic arm 4151a from excessive deformation.

[0159] Similarly, the second elastic arm portion 4152 is provided with a second frame body 4152c that is surrounded on all sides. The second give way groove 4152b is a closed groove, and is surrounded by the second frame body 4152c. The second abutting elastic arm 4152a is connected to a wall portion of the second frame body 4152c, and the other three walls of the second frame body 4152c respectively surround the other three sides of the second abutting elastic arm 4152a. In one embodiment of the present invention, by providing the second frame body 4152c surrounding the second abutting elastic arm 4152a, better protection can be provided for the second abutting elastic arm 4152a to prevent the second abutting elastic arm 4152a from excessive deformation.

[0160] In one embodiment of the present invention, the first positioning column 1124 is fixed to the first mounting positioning hole 4111, so as to fix the first mounting plate 411 to the second upper surface 1121 of the first protruding portion 112. When the first abutting elastic arm 4151a, the first middle portion 4150 and the second abutting elastic arm 4152a are abutted and deformed by the first grounding contact piece of the docking module, the first extension plate 414 can move appropriately along the first direction A1-A1.

[0161] Each second grounding plate 42 is substantially U-shaped, and includes a third mounting plate 421, a fourth mounting plate 422 opposite to the third mounting plate 421, a second connecting plate 423 connecting one side of the third mounting plate 421 and one side of the fourth mounting plate 422, and a second extending plate 424 extending downward and backward from the other side of the fourth mounting plate 422. The third mounting plate 421 is provided with a second mounting positioning hole 4211 matched with the second positioning column 1224.

[0162] The second connecting plate 423 is close to and at least partially blocks the second front surface 220 of the second insulating fixing block 22. The second connecting plate 423 is located at the front end of the receiving slot 101 along the first direction A1-A1; when the docking module is inserted, the tongue plate 301 may first contact the second connecting plate 423, which is conducive to the discharge of static electricity. The fourth mounting plate 422 is provided with a plurality of second grounding spring arms 425 arranged at intervals along the third direction A3-A3. A second grounding spring arm 425 is provided on both sides of the second contact arm 320 of each group of second conductive terminals 32 to improve the shielding effect and improve the quality of signal transmission.

[0163] Please combine Fig.32As shown, the second grounding elastic arm 425 as a whole bulges in a direction away from the third mounting plate 421. Specifically, in the illustrated embodiment of the present invention, the second grounding elastic arm 425 includes a second middle portion 4250, a third elastic arm portion 4251 connecting one end of the second middle portion 4250 and the second connecting plate 423, and a fourth elastic arm portion 4252 connecting the other end of the second middle portion 4250 and the second extension plate 424. In one embodiment of the present invention, the second middle portion 4250 is provided with a second convex bump 4250a protruding into the receiving slot 101. The third elastic arm portion 4251 is provided with a third abutting elastic arm 4251a extending toward the second middle portion 4250, and a third evacuation groove 4251b corresponding to the third abutting elastic arm 4251a and providing a deformation space for the third abutting elastic arm 4251a. The fourth elastic arm portion 4252 is provided with a fourth abutting elastic arm 4252a extending toward the second middle portion 4250, and a fourth evacuation groove 4252b corresponding to the fourth abutting elastic arm 4252a and providing deformation space for the fourth abutting elastic arm 4252a. In the illustrated embodiment of the present invention, the third abutting elastic arm 4251a and the fourth abutting elastic arm 4252a are respectively located on both sides of the second middle portion 4250. The third abutting elastic arm 4251a and the fourth abutting elastic arm 4252a are aligned along the first direction A1-A1. The free end of the third abutting elastic arm 4251a and the free end of the fourth abutting elastic arm 4252a are both close to the second middle portion 4250. The third abutting elastic arm 4251a, the second convex bump 4250a and the fourth abutting elastic arm 4252a are all in contact with the second grounding contact piece of the docking module. This three-point contact method is conducive to achieving a better shielding effect.

[0164] In one embodiment of the present invention, the third elastic arm portion 4251 is provided with a third frame body 4251c which is surrounded on all sides. The third give way groove 4251b is a closed groove, and is surrounded by the third frame body 4251c. The third abutting elastic arm 4251a is connected to a wall portion of the third frame body 4251c, and the other three walls of the third frame body 4251c respectively surround the other three sides of the third abutting elastic arm 4251a. In one embodiment of the present invention, by providing the third frame body 4251c surrounding the third abutting elastic arm 4251a, the third abutting elastic arm 4251a can be provided with better protection to prevent the third abutting elastic arm 4251a from excessive deformation.

[0165] Similarly, the fourth elastic arm portion 4252 is provided with a fourth frame body 4252c which is surrounded on all sides. The fourth give way groove 4252b is a closed groove, and is surrounded by the fourth frame body 4252c. The fourth abutting elastic arm 4252a is connected to a wall portion of the fourth frame body 4252c, and the other three walls of the fourth frame body 4252c respectively surround the other three sides of the fourth abutting elastic arm 4252a. In one embodiment of the present invention, by providing the fourth frame body 4252c surrounding the fourth abutting elastic arm 4252a, the fourth abutting elastic arm 4252a can be provided with better protection to prevent the fourth abutting elastic arm 4252a from excessive deformation.

[0166] In one embodiment of the present invention, the second positioning column 1224 is fixed to the second mounting positioning hole 4211, so as to fix the third mounting plate 421 to the fourth lower surface 1222 of the second protruding portion 122. When the third abutting elastic arm 4251a, the second middle portion 4250 and the fourth abutting elastic arm 4252a are abutted and deformed by the second grounding contact piece of the docking module, the second extension plate 424 can be properly moved along the first direction A1-A1.

[0167] Please combine Figures 37 to 45As shown, in the illustrated embodiment of the present invention, the first module M1 also includes a first shielding sheet 61 installed on the first conductive shell 11. In one embodiment of the present invention, the first shielding sheet 61 is a metal shielding sheet. The first shielding sheet 61 includes a first main body 611 and a first plate-shaped extension 613 extending from the first main body 611. The first main body 611 includes a plurality of first stamping parts 612 stamped integrally. Each first stamping part 612 is provided with a first positioning through hole 6121 penetrating the first stamping part 612 along the second direction A2-A2. The first main body 611 also includes a plurality of first notches 6111 penetrating one side edge thereof and a plurality of first positioning grooves 6112 penetrating the side edge. The plurality of first notches 6111 and the plurality of first positioning grooves 6112 are arranged at intervals along the third direction A3-A3, wherein the first notches 6111 and the first positioning grooves 6112 are arranged alternately along the third direction A3-A3. The first shielding sheet 61 can form a surrounding shielding structure with the first conductive shell 11, which is conducive to improving the shielding effect. The first positioning groove 6112 cooperates with the first positioning block 1141 to achieve positioning. The first notch 6111 corresponds to the first shielding layer 513 of the first cable 51. The first notch 6111 is configured to be filled with solder so that the first main body 611 and the first shielding layer 513 are welded and fixed, which is conducive to further improving the grounding shielding effect. The first positioning through hole 6121 cooperates with the first positioning protruding column 332.

[0168] In the illustrated embodiment of the present invention, the first plate-shaped extension 613 is substantially T-shaped, and the first plate-shaped extension 613 is provided with at least one first positioning through hole 6131. ​​The first positioning protrusion 33a11 passes through the first positioning through hole 6131 to achieve assembly positioning. The first shielding sheet 61 is at least partially supported on the first insulating block 33a1.

[0169] The first plate-shaped extension portion 613 of the first shielding sheet 61 contacts the first abutment portion 3521 of the first grounding terminal G1 and the second abutment portion 3522 of the second grounding terminal G2, so that the first shielding sheet 61 can be grounded to the circuit board 400 through the first mounting tail portion 351 of the first grounding terminal G1 and the first mounting tail portion 351 of the second grounding terminal G2. In one embodiment of the present invention, the first plate-shaped extension portion 613 of the first shielding sheet 61 is welded and fixed to the first abutment portion 3521 of the first grounding terminal G1 and the second abutment portion 3522 of the second grounding terminal G2. The first shielding sheet 61 does not contact the first extension portion 3523 of the first board-end additional terminal 350 to prevent a short circuit.

[0170] In the illustrated embodiment of the present invention, the second module M2 further includes a second shielding sheet 63 installed on the second conductive shell 12. In one embodiment of the present invention, the second shielding sheet 63 is a metal shielding sheet. The second shielding sheet 63 includes a second main body 631 and a second plate-shaped extension 633 extending from the second main body 631. The second main body 631 includes a plurality of second stamping portions 632 formed by integral stamping. Each second stamping portion 632 is provided with a second positioning through hole 6321 penetrating the second stamping portion 632 along the second direction A2-A2. The second main body 631 further includes a plurality of second notches 6311 penetrating one side edge thereof and a plurality of second positioning grooves 6312 penetrating the side edge. The plurality of second notches 6311 and the plurality of second positioning grooves 6312 are arranged at intervals along the third direction A3-A3, wherein the second notches 6311 and the second positioning grooves 6312 are arranged alternately along the third direction A3-A3. The second shielding sheet 63 can form a surrounding shielding structure with the second conductive shell 12, which is conducive to improving the shielding effect. The second positioning groove 6312 cooperates with the second positioning block 1241 to achieve positioning. The second notch 6311 corresponds to the second shielding layer 523 of the second cable 52. The second notch 6311 is configured to be filled with solder so that the second main body 631 and the second shielding layer 523 are welded and fixed, which is conducive to further improving the grounding shielding effect. The second positioning through hole 6321 cooperates with the second positioning protruding column 342.

[0171] In the illustrated embodiment of the present invention, the second plate-shaped extension 633 is substantially T-shaped, and the second plate-shaped extension 633 is provided with at least one second positioning through hole 6331. The second positioning protrusion 34a11 passes through the second positioning through hole 6331 to achieve assembly positioning. The second shielding sheet 63 is at least partially supported on the second insulating block 34a1.

[0172] The second plate-shaped extension portion 633 of the second shielding sheet 63 contacts the third abutment portion 3621 of the third grounding terminal G3 and the fourth abutment portion 3622 of the fourth grounding terminal G4, so that the second shielding sheet 63 can be grounded to the circuit board 400 through the second mounting tail portion 361 of the third grounding terminal G3 and the second mounting tail portion 361 of the fourth grounding terminal G4. In one embodiment of the present invention, the second plate-shaped extension portion 633 of the second shielding sheet 63 is welded and fixed to the third abutment portion 3621 of the third grounding terminal G3 and the fourth abutment portion 3622 of the fourth grounding terminal G4. The second shielding sheet 63 does not contact the second extension portion 3623 of the second board-end additional terminal 360 to prevent a short circuit.

[0173] When assembling the electrical connector 100 , first, the first insulating fixing block 21 is fixed in the first filling groove 1123 , and the second insulating fixing block 22 is fixed in the second filling groove 1223 .

[0174] Then, the first terminal module 31a and the second terminal module 32a are installed in the corresponding first terminal module installation groove 113 and the second terminal module installation groove 123 along the second direction A2-A2. At this time, the first retaining block 33 is clamped in the corresponding first terminal module installation groove 113, so that the first fixing portion 311 of the first conductive terminal 31 is mounted in the first terminal module installation groove 113 to avoid short circuit due to contact with the first conductive housing 11. The first contact arm 310 of the first signal terminal S1 at least partially extends into the first slot 211 of the first insulating fixing block 21. The first contact arm 310 of the second signal terminal S2 at least partially extends into the second slot 212 of the first insulating fixing block 21. Similarly, the second retaining block 34 is clamped in the corresponding second terminal module installation groove 123, so that the second fixing portion 321 of the second conductive terminal 32 is mounted in the second terminal module installation groove 123 to avoid short circuit due to contact with the second conductive housing 12. The second contact arm 320 of the third signal terminal S3 at least partially extends into the third slot 221 of the second insulating fixing block 22. The second contact arm 320 of the fourth signal terminal S4 at least partially extends into the fourth slot 222 of the second insulating fixing block 22.

[0175] Then, the first cable 51 and the second cable 52 are respectively installed in the first terminal module installation groove 113 and the second terminal module installation groove 123. The first core 511 of the first cable 51 contacts the first tail portion 313 of the first conductive terminal 31, and the second core 521 of the second cable 52 contacts the second tail portion 323 of the second conductive terminal 32.

[0176] In the illustrated embodiment of the present invention, the first cable 51 and the second cable 52 are inserted into the corresponding first terminal module installation groove 113 and the second terminal module installation groove 123 from back to front along the first direction A1-A1. The first core 511 of the first cable 51 is located at the bottom of the first tail portion 313 of the first conductive terminal 31, and the second core 521 of the second cable 52 is located at the top of the second tail portion 323 of the second conductive terminal 32. Preferably, in one embodiment of the present invention, the first core 511 of the first cable 51 is welded and fixed to the first tail portion 313 of the first conductive terminal 31, and the second core 521 of the second cable 52 is welded and fixed to the second tail portion 323 of the second conductive terminal 32.

[0177] Then, the first shielding sheet 61 and the second shielding sheet 63 are installed on the first conductive housing 11 and the second conductive housing 12 respectively.

[0178] Then, the first grounding plate 41 and the second grounding plate 42 are installed on the first conductive shell 11 and the second conductive shell 12 respectively.

[0179] Then, the first conductive shell 11 and the second conductive shell 12 are placed together; the first base 111 and the second base 121 correspond to each other up and down; the first protrusion 112 and the second protrusion 122 correspond to each other up and down. In the second direction A2-A2, the first shielding sheet 61 and the second shielding sheet 63 are both located between the first conductive terminals 31 and the second conductive terminals 32 to reduce the crosstalk between the first conductive terminals 31 and the second conductive terminals 32. In addition, in order to further increase the bonding force between the first conductive shell 11 and the second conductive shell 12, the first conductive shell 11 and the second conductive shell 12 are welded at the joint position. When the first conductive shell 11 and the second conductive shell 12 are fixed, the receiving slot 101 for receiving the docking module is formed between the first protrusion 112 and the second protrusion 122.

[0180] Those skilled in the art will appreciate that the order of the steps in the above assembly method can be flexibly adjusted as needed, and the present invention will not elaborate on this.

[0181] Please combine Figures 1 to 17As shown, the connector assembly of the present invention also includes a shielding shell 500. The shielding shell 500 is installed and fixed on the circuit board 400. In the illustrated embodiment of the present invention, the shielding shell 500 is made of metal material to provide a relatively good shielding effect. In the illustrated embodiment of the present invention, the shielding shell 500 includes a plurality of receiving cavities 50a arranged side by side along the third direction A3-A3. Corresponding to each receiving cavity 50a, the shielding shell 500 includes a first wall portion 51a (for example, a top wall), a second wall portion 52a (for example, a bottom wall) opposite to the first wall portion 51a, a third wall portion 53a (for example, a left side wall), a fourth wall portion 54a (for example, a right side wall) opposite to the third wall portion 53a, and a fifth wall portion 55a (for example, a rear wall). In the illustrated embodiment of the present invention, the first wall portion 51a, the second wall portion 52a, the third wall portion 53a, the fourth wall portion 54a and the fifth wall portion 55a together enclose the receiving cavity 50a.

[0182] The first wall portion 51 a defines an opening portion 51 a 1 that penetrates the first wall portion 51 a and communicates with the receiving cavity 50 a .

[0183] The shielding shell 500 is also provided with at least one positioning hole 51a2, and the positioning hole 51a2 cooperates with the positioning boss 71 of the electrical connector 100. In the illustrated embodiment of the present invention, the positioning hole 51a2 includes a plurality of first positioning holes 51a21 provided on the first wall portion 51a and penetrating the first wall portion 51a along the second direction A2-A2. In the illustrated embodiment of the present invention, there are two first positioning holes 51a21 and they are arranged at intervals along the first direction A1-A1. The first positioning hole 51a21 is a round hole and cooperates with the first positioning boss 711.

[0184] The second wall portion 52a defines a plurality of first slots 52a1 and a plurality of second slots 52a2. The plurality of first slots 52a1 are arranged in a row along the first direction A1-A1, and the plurality of second slots 52a2 are arranged in another row along the first direction A1-A1.

[0185] In addition, in the illustrated embodiment of the present invention, the second wall portion 52a is provided with an installation opening 52a3 configured to install the electrical connector 100. The shielding shell 500 includes a mounting wall 56a that at least partially seals the mounting opening 52a3. The positioning hole 51a2 includes a plurality of second positioning holes 51a22 that are provided on the mounting wall 56a and penetrate the mounting wall 56a along the second direction A2-A2. In the illustrated embodiment of the present invention, there are two second positioning holes 51a22 and they are spaced apart along the third direction A3-A3. The second positioning hole 51a22 is a round hole and cooperates with the second positioning boss 712.

[0186] The mounting wall 56a includes a mounting portion 56a1 opposite to the first wall portion 51a, a first buckling portion 56a2 bent from one side of the mounting portion 56a1, a second buckling portion 56a3 bent from the other side of the mounting portion 56a1, and a contact portion 56a4 bent from one end of the mounting portion 56a1. The contact portion 56a4 supports the electrical connector 100.

[0187] The third wall portion 53a is provided with a plurality of first pressing pins 53a1 extending downward and passing through the plurality of first slots 52a1. The first pressing pins 53a1 are provided with fisheye holes so that the first pressing pins 53a1 have a certain elastic deformation ability. The first pressing pins 53a1 are configured to pass through the first slots 52a1 and be inserted into the first mounting holes 401 of the circuit board 400 so as to be fixed to the circuit board 400 and achieve grounding.

[0188] The fourth wall portion 54a is provided with a plurality of second pressing pins 54a1 extending downward and passing through the plurality of second slots 52a2. The second pressing pins 54a1 are provided with fisheye holes, so that the second pressing pins 54a1 have a certain elastic deformation ability. The second pressing pins 54a1 are configured to pass through the second slots 52a2 and be inserted into the second mounting holes 402 of the circuit board 400, so as to be fixed to the circuit board 400 and achieve grounding.

[0189] The fifth wall portion 55a is provided with an opening 55a1 penetrating the fifth wall portion 55a along the first direction A1-A1, the opening 55a1 is communicated with the receiving cavity 50a1, and the electrical connector 100 at least partially passes through the opening 55a1.

[0190] In the illustrated embodiment of the present invention, the fifth wall portion 55a is provided with at least one heat dissipation opening 55a2 communicating with the receiving cavity 50a1 along the first direction A1-A1, and the heat dissipation opening 55a2 penetrates the fifth wall portion 55a along the first direction A1-A1.

[0191] Please combine Fig.10 As shown, in the illustrated embodiment of the present invention, the shielding shell 500 further includes a connecting wall 58 connected to the fifth wall portion 55a and a retaining arm 59 connected to the connecting wall 58. In the illustrated embodiment of the present invention, the connecting wall 58 extends along the first direction A1-A1, the retaining arm 59 extends along the second direction A2-A2, and the connecting wall 58 is located between the fifth wall portion 55a and the retaining arm 59. The fifth wall portion 55a and the retaining arm 59 are parallel to each other, and the connecting wall 58 is perpendicular to the fifth wall portion 55a and the retaining arm 59.

[0192] In the illustrated embodiment of the present invention, the connecting wall 58 is provided with at least one opening 581 (eg, Fig.15 The outer insulating housing 7 further includes at least one mounting boss 713, and the mounting boss 713 passes through the opening 581 to achieve fixation. In one embodiment of the present invention, the mounting boss 713 is fixed in the opening 581 by hot melting, so that the connecting wall 58 and the electrical connector 100 are combined into a whole.

[0193] The shielding shell 500 further includes a plurality of grounding springs 57a. The plurality of grounding springs 57a are configured to abut against the docking connector to increase the holding force and improve the grounding effect.

[0194] In addition, in the illustrated embodiment of the present invention, the connector assembly further includes a heat dissipation module 600 mounted on the shielding shell 500 , a retaining piece 700 for reliably fixing the heat dissipation module 600 to the shielding shell 500 , and a light guide 800 .

[0195] Please combine Fig.13 As shown, the heat dissipation module 600 includes a heat dissipation substrate 601 and heat dissipation fins 602 protruding from the heat dissipation substrate 601. The heat dissipation substrate 601 at least partially passes through the opening 51a1 to protrude into the receiving cavity 50a. The heat dissipation substrate 601 is used to contact the docking connector to transfer heat from the heat dissipation substrate 601 to the heat dissipation fins 602 and dissipate the heat.

[0196] Please combine Fig.10As shown, in the illustrated embodiment of the present invention, the retaining arm 59 includes a first buckling arm 591, a second buckling arm 592, and a plug-in plate portion 593 located between the first buckling arm 591 and the second buckling arm 592. The first buckling arm 591, the plug-in plate portion 593, and the second buckling arm 592 are sequentially arranged along the third direction A3-A3. Specifically, the first buckling arm 591 is provided with a first hook portion 5911, and the second buckling arm 592 is provided with a second hook portion 5921, and the protruding directions of the first hook portion 5911 and the second hook portion 5921 are opposite.

[0197] In addition, please combine Fig.12 As shown, the shielding shell 500 further includes a bracket portion 57 formed by bending the first wall portion 51a in one piece, and the bracket portion 57 extends along the second direction A2-A2 and is perpendicular to the first wall portion 51a. In the illustrated embodiment of the present invention, the bracket portion 57 includes a first bracket arm 571, a second bracket arm 572, and a mounting slot 570 located between the first bracket arm 571 and the second bracket arm 572.

[0198] Specifically, the end of the first bracket arm 571 is provided with a first guide surface 5711 and a first notch 5712 located at the lower part of the first guide surface 5711 along the second direction A2-A2. The end of the second bracket arm 572 is provided with a second guide surface 5721 and a second notch 5722 located at the lower part of the second guide surface 5721 along the second direction A2-A2. The first guide surface 5711 and the second guide surface 5721 form a bell mouth 573 for guiding the light pipe 800 to be installed; the first notch 5712 and the second notch 5722 form a buffer mouth 574. The size of the buffer mouth 574 along the third direction A3-A3 is larger than the size of the installation slot 570 along the third direction A3-A3.

[0199] Please combine Fig. 9 as well as Fig.11As shown, the light guide 800 includes a first tube body 81, a second tube body 82, a first connecting portion 83 connecting the first tube body 81 and the second tube body 82, a second connecting portion 84 connecting the first tube body 81 and the second tube body 82, and a third connecting portion 85 connecting the first tube body 81 and the second tube body 82. The first tube body 81 and the second tube body 82 are both L-shaped. The first connecting portion 83, the second connecting portion 84 and the third connecting portion 85 are arranged at intervals along the first direction A1-A1. The first connecting portion 83 is provided with a mounting groove 831, and the holding arm 59 is at least partially inserted into the mounting groove 831 to fix the light guide 800. Specifically, the first hook portion 5911 and the second hook portion 5921 are both locked with the first connecting portion 83. The plug-in plate portion 593 is at least partially inserted into the mounting groove 831. In the illustrated embodiment of the present invention, the first latching arm 591 , the inserting plate portion 593 , and the second latching arm 592 all pass through the first connecting portion 83 from the mounting slot 831 .

[0200] The second connection portion 84 includes an extended protrusion 841 protruding along the second direction A2 - A2 , and the extended protrusion 841 includes a convex column portion 8411 and a neck portion 8412 connected to the convex column portion 8411 , and the neck portion 8412 is contracted compared to the convex column portion 8411 .

[0201] During assembly, the neck 8412 of the light guide 800 is first assembled into the buffer opening 574 under the guidance of the bell mouth 573, and then a pressing force is applied to the light guide 800 so that the neck 8412 is tightly clamped into the installation slot 570 from the buffer opening 574 to achieve installation and fixation. The convex column portion 8411 protrudes from the bracket portion 57 along the first direction A1-A1. At the same time, the retaining arm 59 of the light guide 800 passes through the installation slot 831 to fix the light guide 800.

[0202] After the light guide 800 is assembled in place, the first tube body 81 and the second tube body 82 are respectively located on both sides of the cables (including the first cable 51 and the second cable 52) along the third direction A3-A3 so as not to affect the arrangement of the cables. The heat dissipation fins 602 protrude from the first tube body 81 and the second tube body 82 along the second direction A2-A2, and the first tube body 81 and the second tube body 82 are respectively located on both sides of the heat dissipation fins 602 along the third direction A3-A3. The first tube body 81 and the second tube body 82 correspond to the first light-emitting element 405 and the second light-emitting element 406, respectively, so that the light generated by the first light-emitting element 405 and the second light-emitting element 406 is displayed at the docking end of the connector assembly through the first tube body 81 and the second tube body 82, thereby facilitating identification of the working state of the connector assembly.

[0203] When assembling the shielding shell 500 and the electrical connector 100, first, the electrical connector 100 is installed into the shielding shell 500 from the mounting opening 52a3; the positioning portion 7112 of the first positioning convex column 711 is inserted and positioned in the first positioning hole 51a21, and the supporting portion 7111 supports the first wall portion 51a; then, the mounting wall 56a is fixed, the second positioning convex column 712 is inserted and positioned in the second positioning hole 51a22, and the abutting portion 56a4 supports the electrical connector 100. Then, the shielding shell 500 is fixed on the circuit board 400. In one embodiment of the present invention, in order to further increase the bonding strength between the electrical connector 100 and the shielding shell 500, the positioning portion 7112 of the first positioning convex column 711 is inserted and positioned in the first positioning hole 51a21, and is further fixed to the shielding shell 500 by hot melting. Similarly, the second positioning protrusion 712 is inserted into and positioned in the second positioning hole 51a22, and is further fixed to the shielding shell 500 by hot melting.

[0204] Compared with the prior art, the connector assembly of the present invention includes an electrical connector 100 and a shielding shell 500. The electrical connector 100 and the shielding shell 500 cooperate with each other in at least one positioning boss 71 and at least one positioning hole 51a2, and the positioning boss 71 is inserted into the positioning hole 51a2. In this way, the present invention can effectively fix the position of the electrical connector 100 and prevent the electrical connector 100 from moving in the shielding shell 500. In the illustrated embodiment of the present invention, the positioning boss 71 is provided on the electrical connector 100, and the positioning hole 51a2 is provided on the shielding shell 500. The positioning boss 71 can be integrally formed with the outer insulating shell 7 or separately provided. Of course, those skilled in the art can understand that in other embodiments of the present invention, the positioning boss 71 can also be provided on the shielding shell 500, and the positioning hole 51a2 is provided on the electrical connector 100. The positioning boss 71 can be integrally formed with the shielding shell 500 or separately provided. In addition, the conductive terminals 3 of the electrical connector 100 in the illustrated embodiment of the present invention include cable terminals and board-end terminals. This mixed terminal arrangement often brings inconvenience to the arrangement and installation of peripheral components. In the illustrated embodiment of the present invention, the light guide 800 is fixed by at least partially inserting the retaining arm 59 into the mounting slot 831, thereby simplifying the fixing structure. In addition, the present invention simplifies the structural design of the first grounding terminal G1 and the second grounding terminal G2 by setting the first shielding sheet 61 to contact the first grounding terminal G1 and the second grounding terminal G2, so that the first mounting tail 351 of the first grounding terminal G1 and the first mounting tail 351 of the second grounding terminal G2 can be used to achieve grounding with the circuit board 400, thereby simplifying the structural design of the first grounding terminal G1 and the second grounding terminal G2 themselves.

[0205] The above implementation modes 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 the technical personnel in the relevant technical field. Although the present invention has been described in detail in this specification with reference to the above implementation modes, the ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements thereof 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. An electrical connector, characterized in that: include: A conductive housing, wherein the conductive housing is provided with a receiving slot extending along a first direction and configured to receive the docking connector; A plurality of conductive terminals, the conductive terminals are arranged in the conductive housing, the conductive terminals include a plurality of first conductive terminals and a plurality of first board-end terminals; the first board-end terminals include a first grounding terminal and a first board-end additional terminal located beside the first grounding terminal; each of the first board-end terminals includes a first mounting tail configured to be mounted on a circuit board; the first grounding terminal includes a first abutting portion; a first cable, the first cable being electrically connected to the first conductive terminal; as well as A first shielding piece is in contact with a first abutting portion of the first grounding terminal, so that the first shielding piece can be grounded to the circuit board through a first mounting tail portion of the first grounding terminal.

2. The electrical connector according to claim 1, wherein: Each first conductive terminal includes a first contact arm and a first tail, wherein the first contact arm includes a first contact portion protruding into the receiving slot; The first board-end additional terminal comprises a first extension portion and a first additional contact arm connected to the first extension portion, wherein the first additional contact arm comprises a first additional contact portion protruding into the receiving slot; The first cable is electrically connected to the first tail of the first conductive terminal; The first board end terminal further includes a second grounding terminal, the first board end additional terminal is located between the first grounding terminal and the second grounding terminal; the second grounding terminal includes a second abutting portion; The first shielding sheet contacts the second abutting portion of the second grounding terminal, so that the first shielding sheet can be grounded to the circuit board through the first mounting tail portion of the second grounding terminal; The first shielding sheet does not contact the first extending portion of the first board-end additional terminal.

3. The electrical connector according to claim 2, wherein: The first shielding sheet is fixed to the first abutting portion of the first ground terminal and the second abutting portion of the second ground terminal by welding.

4. The electrical connector according to claim 2, wherein: The first grounding terminal and the second grounding terminal are not provided with any elastic contact arm protruding into the receiving slot and configured to be electrically connected to the docking connector.

5. The electrical connector according to claim 2, wherein: The first abutting portion, the second abutting portion, and the first extending portion are parallel to each other.

6. The electrical connector according to claim 2, wherein: The first abutting portion and the second abutting portion are located at a first height along a second direction, the first extending portion is located at a second height along the second direction, and the first height is different from the second height.

7. The electrical connector according to claim 2, wherein: The electrical connector includes at least one first insulating block fixed on the first extending portion, the first additional contact arm extends out of the first insulating block, and the first shielding sheet is at least partially supported on the first insulating block.

8. The electrical connector according to claim 7, wherein: The first insulating block is provided with at least one first positioning protruding column, and the first shielding sheet is provided with at least one first positioning through-hole, and the first positioning protruding column passes through the first positioning through-hole.

9. The electrical connector according to claim 2, wherein: The first shielding sheet includes a first main body portion in contact with the conductive housing and a first plate-shaped extension portion extending from the first main body portion, wherein the first plate-shaped extension portion is in contact with a first abutting portion of the first grounding terminal and a second abutting portion of the second grounding terminal; The first main body is provided with a plurality of first notches, the first cable comprises a first core, a first insulator wrapped on the first core, and a first shielding layer wrapped on the first insulator, the first core is fixed to the first tail of the first conductive terminal by welding, the first notch corresponds to the first shielding layer, and the first notch is configured to be filled with solder so that the first main body is fixed to the first shielding layer by welding.

10. The electrical connector according to claim 2, wherein: The length of the first extending portion along the first direction is greater than the length of the first abutting portion along the first direction, and the length of the first extending portion along the first direction is greater than the length of the second abutting portion along the first direction.

11. The electrical connector according to claim 2, wherein: The first mounting tail of the first grounding terminal is perpendicular to the first abutting portion of the first grounding terminal, the first mounting tail of the second grounding terminal is perpendicular to the second abutting portion of the second grounding terminal, and the first mounting tail of the first board-end additional terminal is perpendicular to the first extending portion of the first board-end additional terminal; Each first mounting tail portion is provided with a first mounting through hole, and the first mounting tail portion is configured to be inserted into the first conductive hole of the circuit board in an elastically deformed manner.

12. The electrical connector according to claim 2, wherein: The electrical connector includes a first module; the first module includes: a first conductive housing; and a first terminal module, wherein the first terminal module is at least partially disposed in the first conductive housing, the first terminal module includes the first conductive terminal, and the first conductive terminal is not in contact with the first conductive housing; The conductive housing includes the first conductive housing.

13. The electrical connector according to claim 12, wherein: The first conductive terminal of the first terminal module includes a first signal terminal and a second signal terminal; The first module also includes a first retaining block fixed on the first signal terminal and the second signal terminal, the first retaining block is provided with a first positioning protruding column, the first shielding sheet is provided with a first positioning through hole, and the first positioning protruding column passes through the first positioning through hole.

14. The electrical connector according to claim 12, wherein: The electrical connector includes a second module; the second module includes: a second conductive housing; and A second terminal module, wherein the second terminal module is at least partially disposed in the second conductive housing, and the second terminal module includes a plurality of second conductive terminals, and the second conductive terminals are not in contact with the second conductive housing; The conductive shell includes the second conductive shell; The receiving slot is formed by the first conductive shell and the second conductive shell.

15. A connector assembly, characterized in that: include: An electrical connector, wherein the electrical connector is the electrical connector according to any one of claims 1 to 14; A shielding shell, the shielding shell is configured to be installed on a circuit board, the shielding shell includes a receiving cavity, the receiving cavity is connected to the receiving slot along a first direction, the receiving cavity and the receiving slot are configured to jointly receive a docking connector along the first direction; a first cable passes through the shielding shell along the first direction; the shielding shell is provided with a retaining arm; and A light guide tube, the light guide tube comprising a first tube body portion, a second tube body portion and a first connecting portion connecting the first tube body portion and the second tube body portion, the first tube body portion and the second tube body portion are respectively located on both sides of the first cable; the first connecting portion is provided with a mounting groove, the retaining arm is at least partially inserted into the mounting groove to fix the light guide tube.

16. The connector assembly according to claim 15, wherein: The retaining arm includes a first buckling arm and a second buckling arm spaced apart from the first buckling arm, the first buckling arm is provided with a first hook, the second buckling arm is provided with a second hook, and both the first hook and the second hook are locked with the first connecting portion.

17. The connector assembly according to claim 16, wherein: The first hook portion and the second hook portion protrude in opposite directions.

18. The connector assembly of claim 16, wherein: The retaining arm also includes an inserting plate portion located between the first buckling arm and the second buckling arm, the first buckling arm, the inserting plate portion and the second buckling arm are arranged in sequence and spaced apart, and the inserting plate portion is at least partially inserted into the installation slot.

19. The connector assembly according to claim 18, wherein: The first buckling arm, the inserting plate portion and the second buckling arm all pass through the first connecting portion from the installation slot.

20. The connector assembly of claim 15, wherein: The light guide comprises a second connecting portion connecting the first tube body portion and the second tube body portion, the second connecting portion comprises an extended protrusion protruding along a second direction, the extended protrusion comprises a convex column portion and a neck portion connected to the convex column portion; the second direction is perpendicular to the first direction; The shielding shell includes a bracket portion, which includes a first bracket arm, a second bracket arm, and a mounting slot located between the first bracket arm and the second bracket arm. The neck is tightly clamped in the mounting slot, and the boss portion protrudes from the bracket portion along the first direction.

21. The connector assembly of claim 20, wherein: A first guide surface and a first recess located at the lower portion of the first guide surface along the second direction are provided at the end of the first bracket arm, and a second guide surface and a second recess located at the lower portion of the second guide surface along the second direction are provided at the end of the second bracket arm; the first guide surface and the second guide surface form a bell mouth for guiding the neck; the first recess and the second recess form a buffer mouth, the dimension of the buffer mouth along the third direction is greater than the dimension of the mounting slot along the third direction, and the third direction is perpendicular to the first direction and the second direction.

22. The connector assembly of claim 15, wherein: The shielding shell comprises a connecting wall connected to the holding arm, and the connecting wall is provided with at least one opening; The electrical connector includes an outer insulating shell fixed on the conductive shell, the outer insulating shell is provided with at least one mounting boss, and the mounting boss passes through the opening; the mounting boss is fixed in the opening by hot melting, so that the connecting wall and the electrical connector are combined into a whole.

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