Electrical connector and connector assembly

Abstract

An electrical connector includes a first conductive body and a first terminal module. The first terminal module includes a plurality of first conductive terminals and a first insulating retainer. The plurality of first conductive terminals includes a first signal terminal, a second signal terminal, a first ground terminal and a second ground terminal. The first signal terminal and the second signal terminal each include a first contact arm protruding from the first insulating retainer. The first ground terminal includes a first abutting portion protruding from the first insulating retainer, and the second ground terminal includes a second abutting portion protruding from the first insulating retainer. At least one of the first abutting portion and the second abutting portion is in contact with the first conductive body. In this way, the ground shielding effect is improved, and the quality of signal transmission is improved. A connector assembly having the electrical connector is also disclosed.

Description

Technical Field

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

[0002] Electrical connectors in related technologies typically include an insulating body and a plurality of conductive terminals mounted on the insulating body. The insulating body is provided with a mating slot. The conductive terminals include a first signal terminal and a second signal terminal, wherein each conductive terminal includes a contact arm, the contact arm including a contact portion protruding into the mating slot.

[0003] To improve shielding, related technologies have proposed replacing the insulating body with a conductive body. However, as the requirements for signal transmission in electrical connectors continue to increase, there is still room for improvement in enhancing the integrity of the first and second signal terminals during signal transmission. Summary of the Invention

[0004] The purpose of this invention is to provide an electrical connector and connector assembly that are beneficial to improving signal transmission quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electrical connector, comprising:

[0006] A first conductive body, the first conductive body having a first receiving slot extending along a first direction; and

[0007] A first terminal module is at least partially disposed on the first conductive body. The first terminal module includes a plurality of first conductive terminals and a first insulating fixing block fixed at least on a portion of the plurality of first conductive terminals. The plurality of first conductive terminals include a first signal terminal, a second signal terminal, a first ground terminal located on one side of the first signal terminal and the second signal terminal, and a second ground terminal located on the other side of the first signal terminal and the second signal terminal. Both the first signal terminal and the second signal terminal include a first contact arm protruding from the first insulating fixing block along the first direction. The first contact arm includes a first contact portion protruding into the first receiving slot. Neither the first signal terminal nor the second signal terminal contacts the first conductive body. The first ground terminal includes a first abutting portion protruding from the first insulating fixing block. The second ground terminal includes a second abutting portion protruding from the first insulating fixing block. At least one of the first abutting portion and the second abutting portion contacts the first conductive body.

[0008] As a further improvement of the present invention, the first abutting portion is in elastic contact or non-elastic contact with the first conductive body; and / or

[0009] The second contact portion makes elastic or non-elastic contact with the first conductive body.

[0010] As a further improved technical solution of the present invention, the first abutting part is located at the free end of the first grounding terminal, and the first grounding terminal is not provided with a first contact arm protruding into the first receiving slot;

[0011] The second abutment is located at the free end of the second grounding terminal, and the second grounding terminal does not have a first contact arm protruding into the first receiving slot.

[0012] As a further improved technical solution of the present invention, each first conductive terminal includes a first fixing part, and the first insulating fixing block is at least partially fixed on the first fixing part of the first signal terminal, the first fixing part of the second signal terminal, the first fixing part of the first grounding terminal and the first fixing part of the second grounding terminal.

[0013] The first contact arm of the first signal terminal is connected to the first fixing part of the first signal terminal;

[0014] The first contact arm of the second signal terminal is connected to the first fixing part of the second signal terminal;

[0015] The first abutting portion of the first grounding terminal is connected to the first fixing portion of the first grounding terminal;

[0016] The second abutting portion of the second grounding terminal is connected to the first fixing portion of the second grounding terminal;

[0017] The first terminal module further includes a first insulating bonding block fixed on the first signal terminal and the second signal terminal, and the first insulating bonding block is at least partially installed in the first conductive body.

[0018] As a further improved technical solution of the present invention, the first insulating connecting block and the first insulating fixing block are spaced apart along the first direction, and the first insulating connecting block is closer to the first contact portion than the first insulating fixing block.

[0019] Neither the first abutting portion nor the second abutting portion extends beyond the first insulating bonding block.

[0020] As a further improved technical solution of the present invention, the first terminal module further includes a first ground plane mounted on the first insulating fixing block. The first ground plane includes a first mating part that contacts at least a portion of the first fixing part of the first grounding terminal, a second mating part that contacts at least a portion of the first fixing part of the second grounding terminal, and a first raised part that connects the first mating part and the second mating part. The first raised part does not contact the first fixing part of the first signal terminal or the first fixing part of the second signal terminal.

[0021] As a further improvement of the present invention, each first conductive terminal includes a second fixing portion formed by bending from the first fixing portion;

[0022] The first terminal module further includes a second insulating fixing block that is at least partially fixed to the second fixing part of the first signal terminal, the second fixing part of the second signal terminal, the second fixing part of the first ground terminal, and the second fixing part of the second ground terminal;

[0023] The first signal terminal includes a first mounting foot formed by bending a second fixing portion of the first signal terminal. The first mounting foot protrudes from the second insulating fixing block and is configured to be mounted on a first signal conductive sheet of the circuit board.

[0024] The second signal terminal includes a second mounting foot formed by bending a second fixing portion of the second signal terminal. The second mounting foot protrudes from the second insulating fixing block and is configured to be mounted on the second signal conductive sheet of the circuit board.

[0025] The first grounding terminal includes a first tail portion that extends from the second fixing portion of the first grounding terminal and protrudes from the second insulating fixing block;

[0026] The second grounding terminal includes a second tail portion that extends from the second fixing portion of the second grounding terminal and protrudes from the second insulating fixing block;

[0027] The first tail portion and the second tail portion are not directly mounted on the circuit board.

[0028] As a further improved technical solution of the present invention, the first grounding terminal, the first signal terminal, the second signal terminal and the second grounding terminal are arranged sequentially along the second direction;

[0029] The second fixing part extends along a third direction, and the first direction, the second direction, and the third direction are perpendicular to each other;

[0030] The first mounting pin of the first signal terminal is perpendicular to the second fixing portion of the first signal terminal; the second mounting pin of the second signal terminal is perpendicular to the second fixing portion of the second signal terminal; the first tail of the first ground terminal extends along the third direction; the second tail of the second ground terminal extends along the third direction.

[0031] As a further improved technical solution of the present invention, the electrical connector further includes a conductive mounting block, the conductive mounting block including a first mounting hole, a second mounting hole, a first hollow hole, a first shielding protrusion and a second shielding protrusion, wherein the first hollow hole is located between the first mounting hole and the second mounting hole;

[0032] The first tail of the first grounding terminal is inserted into the first mounting hole, and the second tail of the second grounding terminal is inserted into the second mounting hole. The first mounting pin of the first signal terminal and the second mounting pin of the second signal terminal pass through the first hollow hole and are located between the first shielding protrusion and the second shielding protrusion. The first shielding protrusion is configured to be mounted on the first grounding conductive sheet of the circuit board, and the second shielding protrusion is configured to be mounted on the second grounding conductive sheet of the circuit board.

[0033] As a further improvement of the present invention, the conductive mounting block includes a main body, the main body including a first surface and a second surface opposite to the first surface;

[0034] The conductive mounting block includes a first protrusion that extends integrally with the main body and protrudes from the first surface, and a second protrusion that extends integrally with the main body and protrudes from the first surface. The first mounting hole is disposed on the first protrusion, and the second mounting hole is disposed on the second protrusion.

[0035] Both the first shielding ridge and the second shielding ridge extend integrally with the main body and protrude from the second surface;

[0036] The first perforation extends through the first surface and the second surface.

[0037] As a further improved technical solution of the present invention, the first terminal module further includes a second grounding plate mounted on the second insulating fixing block. The second grounding plate includes a third mating portion that contacts at least a portion of the second fixing portion of the first grounding terminal, a fourth mating portion that contacts at least a portion of the second fixing portion of the second grounding terminal, and a second raised portion connecting the third mating portion and the fourth mating portion. The second raised portion does not contact the second fixing portion of the first signal terminal or the second fixing portion of the second signal terminal.

[0038] As a further improved technical solution of the present invention, the first terminal module includes a first insulating block fixed to the first conductive body. The first insulating block includes a first slot and a second slot, wherein the first contact arm of the first signal terminal extends at least partially into the first slot, and the first contact arm of the second signal terminal extends at least partially into the second slot.

[0039] As a further improvement to the present invention, the electrical connector further includes:

[0040] A second conductive body, the second conductive body having a second receiving slot extending along the first direction; and

[0041] A second terminal module, at least partially disposed on the second conductive body, includes a plurality of second conductive terminals and a third insulating fixing block fixed at least on a portion of the plurality of second conductive terminals; the plurality of second conductive terminals include a third signal terminal, a fourth signal terminal, a third ground terminal located on one side of the third signal terminal and the fourth signal terminal, and a fourth ground terminal located on the other side of the third signal terminal and the fourth signal terminal; both the third signal terminal and the fourth signal terminal include a second contact arm protruding from the third insulating fixing block along the first direction, the second contact arm including a second contact portion protruding into the second receiving slot, and neither the third signal terminal nor the fourth signal terminal contacts the second conductive body; the third ground terminal includes a third abutment portion protruding from the third insulating fixing block along the first direction; the fourth ground terminal includes a fourth abutment portion protruding from the third insulating fixing block; both the third abutment portion and the fourth abutment portion contact the second conductive body;

[0042] The first conductive body and the second conductive body are fixed together to form a docking slot, the docking slot being configured to at least partially accommodate a docking module, the docking slot including the first accommodating slot and the second accommodating slot.

[0043] As a further improvement of the present invention, the third abutting portion is in elastic or non-elastic contact with the second conductive body; and / or

[0044] The fourth contact portion makes elastic or non-elastic contact with the second conductive body.

[0045] As a further improvement of the present invention, the third abutment portion is located at the free end of the third grounding terminal, and the third grounding terminal is not provided with a second contact arm protruding into the second receiving slot;

[0046] The fourth abutment is located at the free end of the fourth grounding terminal, and the fourth grounding terminal does not have a second contact arm protruding into the second receiving slot.

[0047] As a further improvement of the present invention, each second conductive terminal includes a third fixing part, and the third insulating fixing block is at least partially fixed to the third fixing part of the third signal terminal, the third fixing part of the fourth signal terminal, the third fixing part of the third grounding terminal, and the third fixing part of the fourth grounding terminal.

[0048] The second contact arm of the third signal terminal is connected to the third fixing part of the third signal terminal;

[0049] The second contact arm of the fourth signal terminal is connected to the third fixing part of the fourth signal terminal;

[0050] The third abutting part of the third grounding terminal is connected to the third fixing part of the third grounding terminal;

[0051] The fourth abutting part of the fourth grounding terminal is connected to the third fixing part of the fourth grounding terminal;

[0052] The second terminal module further includes a second insulating bonding block fixed on the third signal terminal and the fourth signal terminal, the second insulating bonding block being at least partially installed in the second conductive body.

[0053] As a further improved technical solution of the present invention, the second insulating connecting block and the third insulating fixing block are spaced apart along the first direction, and the second insulating connecting block is closer to the second contact portion than the third insulating fixing block;

[0054] Neither the third abutment nor the fourth abutment extends beyond the second insulating bonding block.

[0055] As a further improvement of the present invention, the second terminal module further includes a third grounding plate mounted on the third insulating fixing block. The third grounding plate includes a fifth mating portion that contacts at least a portion of the third fixing portion of the third grounding terminal, a sixth mating portion that contacts at least a portion of the third fixing portion of the fourth grounding terminal, and a third raised portion that connects the fifth mating portion and the sixth mating portion. The third raised portion does not contact the third fixing portion of the third signal terminal or the third fixing portion of the fourth signal terminal.

[0056] The present invention also discloses a connector assembly comprising:

[0057] An electrical connector, wherein the electrical connector is the aforementioned electrical connector; and

[0058] A circuit board includes a plurality of first conductive sheets, a first ground conductive sheet, and a second ground conductive sheet; the plurality of first conductive sheets include a first signal conductive sheet and a second signal conductive sheet, the first signal conductive sheet and the second signal conductive sheet forming a first signal conductive sheet group; the first ground conductive sheet and the second ground conductive sheet are respectively located on both sides of the first signal conductive sheet group; the length of the first ground conductive sheet along the first direction is greater than the length of the first signal conductive sheet along the first direction, and also greater than the length of the second signal conductive sheet along the first direction; the length of the second ground conductive sheet along the first direction is greater than the length of the first signal conductive sheet along the first direction, and also greater than the length of the second signal conductive sheet along the first direction.

[0059] The first signal terminal is electrically in contact with the first signal conductive sheet, the second signal terminal is electrically in contact with the second signal conductive sheet, the first ground terminal is electrically connected to the first ground conductive sheet, and the second ground terminal is electrically connected to the second ground conductive sheet.

[0060] Compared to existing technologies, this invention provides a first grounding terminal located on one side of the first signal terminal and the second signal terminal, and a second grounding terminal located on the other side of the first signal terminal and the second signal terminal, thereby improving the grounding shielding effect on the first signal terminal and the second signal terminal. Furthermore, the first grounding terminal includes a first abutting portion protruding from the first insulating fixing block along the first direction; the second grounding terminal includes a second abutting portion protruding from the first insulating fixing block; at least one of the first abutting portion and the second abutting portion is in contact with the first conductive body. This configuration simplifies the structure of the first grounding terminal and the second grounding terminal themselves; furthermore, by having at least one of the first abutting portion and the second abutting portion contact the first conductive body, the first conductive body, the first grounding terminal, and / or the second grounding terminal are connected as a whole, improving the grounding shielding effect and enhancing the quality of signal transmission. Attached Figure Description

[0061] Figure 1 This is a perspective view of the connector assembly of the present invention in one embodiment, wherein the electrical connector is mounted on a circuit board;

[0062] Figure 2 yes Figure 1 A three-dimensional diagram from another angle;

[0063] Figure 3 yes Figure 1 A partial exploded perspective view, wherein the electrical connector is separated from the circuit board;

[0064] Figure 4 yes Figure 3 Top view of the circuit board described herein;

[0065] Figure 5 yes Figure 3 Another perspective of a partially exploded 3D view;

[0066] Figure 6 yes Figure 5 A magnified view of part B within the middle frame;

[0067] Figure 7 yes Figure 5 Top view of the electrical connector described herein;

[0068] Figure 8 yes Figure 3 Partial exploded perspective view of the electrical connector described herein;

[0069] Figure 9 yes Figure 8 Another perspective of a partially exploded 3D view;

[0070] Figure 10 It is to remove Figure 8 A further exploded perspective view of the first welding piece, the second welding piece, several first mounting barbs, and several second mounting barbs, in which the conductive mounting block is separated;

[0071] Figure 11 yes Figure 10 Top view of the conductive mounting block described herein;

[0072] Figure 12 yes Figure 10 Another perspective of a partially exploded 3D view;

[0073] Figure 13 yes Figure 12 A magnified view of part C within the middle frame;

[0074] Figure 14 yes Figure 10 The main view;

[0075] Figure 15 It is to remove Figure 10 A further partial exploded perspective view of the conductive mounting block described in the figure;

[0076] Figure 16 yes Figure 15 Another perspective of a partially exploded 3D view;

[0077] Figure 17 yes Figure 15 Further partial exploded view;

[0078] Figure 18 yes Figure 17 Partial exploded 3D view of the first module;

[0079] Figure 19 yes Figure 18 Another perspective of a partially exploded 3D view;

[0080] Figure 20 yes Figure 17 Partial exploded 3D view of the second module;

[0081] Figure 21 yes Figure 20 Another perspective of a partially exploded 3D view;

[0082] Figure 22 yes Figure 17 Partial exploded 3D view of the third module;

[0083] Figure 23 yes Figure 22 Another perspective of a partially exploded 3D view;

[0084] Figure 24 yes Figure 17 Partial exploded 3D view of the fourth module;

[0085] Figure 25 yes Figure 24 Another perspective of a partially exploded 3D view;

[0086] Figure 26 yes Figure 18 Further exploded view;

[0087] Figure 27 yes Figure 26 Another perspective of the exploded 3D view;

[0088] Figure 28 yes Figure 20 Further exploded view;

[0089] Figure 29 yes Figure 28 Another perspective of the exploded 3D view;

[0090] Figure 30 yes Figure 22 Further exploded view;

[0091] Figure 31 yes Figure 30 Another perspective of the exploded 3D view;

[0092] Figure 32 yes Figure 24 Further exploded view;

[0093] Figure 33 yes Figure 32 Another perspective of the exploded 3D view;

[0094] Figure 34 This is a top view of the first module, in which the first insulating fixing block and the first ground plane are separated;

[0095] Figure 35 yes Figure 34 A further exploded view, in which the first conductive terminal is further separated;

[0096] Figure 36 yes Figure 35 A bottom view;

[0097] Figure 37 This is a top view of the second module, in which the third insulating fixing block and the third grounding plate are separated;

[0098] Figure 38 yes Figure 37 A further exploded view, in which the second conductive terminal is further separated;

[0099] Figure 39 yes Figure 38 A bottom view;

[0100] Figure 40 This is a top view of the third module, in which the fifth insulating fixing block and the fifth grounding plate are separated;

[0101] Figure 41 yes Figure 40 A further exploded view, in which the third conductive terminal is further separated;

[0102] Figure 42 yes Figure 41 A bottom view;

[0103] Figure 43 This is a top view of the fourth module, in which the seventh insulating fixing block and the seventh grounding plate are separated;

[0104] Figure 44 yes Figure 43 A further exploded view, in which the fourth conductive terminal is further separated;

[0105] Figure 45 yes Figure 44 A bottom view;

[0106] Figure 46 It is along Figure 1 Schematic diagram of the cross section of the DD line;

[0107] Figure 47 yes Figure 46 A magnified view of part E within the middle frame;

[0108] Figure 48 It is along Figure 1 A cross-sectional view of the FF line;

[0109] Figure 49 This is a partial exploded perspective view of a portion of the first module, a portion of the second module, a portion of the third module, and a portion of the fourth module in another embodiment;

[0110] Figure 50 yes Figure 48 A cross-sectional view in another embodiment;

[0111] Figure 51 yes Figure 48 A magnified view of the H section within the middle frame;

[0112] Figure 52 yes Figure 50 A magnified view of part I within the middle frame;

[0113] Figure 53 yes Figure 51 A partially enlarged view of another embodiment;

[0114] Figure 54 yes Figure 52 A partially enlarged view of another embodiment. Detailed Implementation

[0115] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0116] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” as used in the specification and claims of this invention are also intended to include the plural forms unless the context clearly indicates otherwise.

[0117] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this invention are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" encompasses the element following "comprising" or "including" and its equivalents, but this does not preclude the element preceding "comprising" or "including" from also including other elements. In this invention, the term "several" means two or more.

[0118] Please refer to Figures 1 to 5As shown, this invention discloses a connector assembly 400, which includes an electrical connector 100 and a circuit board 200 for mounting the electrical connector 100. The electrical connector 100 is used to receive a mating module (not shown) that is at least partially inserted into the electrical connector 100 to achieve electrical conductivity. In the illustrated embodiment of this invention, the electrical connector 100 is an OSFP (Octal Small Form-factor Pluggable) socket connector; correspondingly, the mating module is an OSFP plug connector. Of course, those skilled in the art will understand that the electrical connector 100 can 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.; correspondingly, the mating module can be 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 will not be elaborated further here. Of course, those skilled in the art will understand that the electrical connector 100 can also be other types of electrical connectors, including but not limited to USB connectors, HDMI connectors, DisplayPort connectors, RJ45 connectors, Thunderbolt connectors, etc.

[0119] Please combine Figure 3As shown in the illustrated embodiment of the present invention, the electrical connector 100 is a stacked connector, which has a first mating slot 101 that at least partially accommodates one mating module and a second mating slot 102 that at least partially accommodates another mating module. To simplify the description of the specific embodiments of the present invention, the insertion / removal direction between the mating module and the electrical connector 100 is a first direction A1-A1 (e.g., front-to-back direction); the width direction of the first mating slot 101 is a second direction A2-A2 (e.g., left-to-right direction); and the mounting direction between the electrical connector 100 and the circuit board 200 is a third direction A3-A3 (e.g., up-down direction). The first direction A1-A1, the second direction A2-A2, and the third direction A3-A3 are all perpendicular to each other.

[0120] The docking module includes a tongue plate. The tongue plate includes a plurality of first contact pieces exposed on the upper surface of the tongue plate and a plurality of second contact pieces exposed on the lower surface of the tongue plate. The plurality of first contact pieces are arranged at intervals along the second direction A2-A2, and the plurality of second contact pieces are arranged at intervals along the second direction A2-A2.

[0121] Please combine Figures 3 to 5 As shown, in one embodiment of the present invention, the circuit board 200 includes an upper surface 201, a lower surface 202, a plurality of first signal conductive regions, a plurality of second signal conductive regions, a plurality of third signal conductive regions, a plurality of fourth signal conductive regions, a plurality of first ground conductive regions, and a plurality of second ground conductive regions.

[0122] Please combine Figure 4As shown, in one embodiment of the present invention, the plurality of first conductive regions are a plurality of first conductive sheets 203, the plurality of second conductive regions are a plurality of second conductive sheets 204, the plurality of third conductive regions are a plurality of third conductive sheets 205, and the plurality of fourth conductive regions are a plurality of fourth conductive sheets 206. The first ground conductive region is a plurality of first ground conductive sheets 207, and the second ground conductive region is a plurality of second ground conductive sheets 208. The plurality of first conductive sheets 203, the plurality of second conductive sheets 204, the plurality of third conductive sheets 205, the plurality of fourth conductive sheets 206, the plurality of first ground conductive sheets 207, and the plurality of second ground conductive sheets 208 are configured to be electrically connected to the corresponding conductive terminals of the electrical connector 100 using a surface mount technology (SMT) method. The plurality of first conductive sheets 203 are exposed on the upper surface 201 of the circuit board and are arranged at intervals along the second direction A2-A2; the plurality of second conductive sheets 204 are exposed on the upper surface 201 of the circuit board and are arranged at intervals along the second direction A2-A2; the plurality of third conductive sheets 205 are exposed on the upper surface 201 of the circuit board and are arranged at intervals along the second direction A2-A2; and the plurality of fourth conductive sheets 206 are exposed on the upper surface 201 of the circuit board and are arranged at intervals along the second direction A2-A2. The plurality of first conductive sheets 203, the plurality of second conductive sheets 204, the plurality of third conductive sheets 205, and the plurality of fourth conductive sheets 206 are arranged in approximately four rows along the first direction A1-A1.

[0123] The plurality of first grounding conductive plates 207 include a plurality of first grounding conductive plates 2071 and a plurality of second grounding conductive plates 2072. The plurality of second grounding conductive plates 208 include a plurality of third grounding conductive plates 2081 and a plurality of fourth grounding conductive plates 2082.

[0124] The plurality of first conductive sheets 203 include a plurality of first signal conductive sheets 2031 and a plurality of second signal conductive sheets 2032. Adjacent first signal conductive sheets 2031 and second signal conductive sheets 2032 along the second direction A2-A2 form a first signal conductive sheet group DP1. In one embodiment of the present invention, the first signal conductive sheet group DP1 is a differential pair to improve signal transmission speed. Along the second direction A2-A2, each first signal conductive sheet group DP1 has a first ground conductive sheet 2071 and a second ground conductive sheet 2072 on both sides to improve shielding and enhance signal transmission quality. In the illustrated embodiment of the present invention, the length of each first ground conductive sheet 2071 along the first direction A1-A1 is greater than the length of each first signal conductive sheet 2031 along the first direction A1-A1, and also greater than the length of each second signal conductive sheet 2032 along the first direction A1-A1, thereby better improving shielding and enhancing signal transmission quality. The length of each second grounding conductive piece 2072 along the first direction A1-A1 is greater than the length of each first signal conductive piece 2031 along the first direction A1-A1, and also greater than the length of each second signal conductive piece 2032 along the first direction A1-A1, thereby improving shielding and enhancing the quality of signal transmission.

[0125] In the illustrated embodiment of the present invention, the plurality of second conductive sheets 204 include a plurality of third signal conductive sheets 2041 and a plurality of fourth signal conductive sheets 2042. Adjacent third signal conductive sheets 2041 and fourth signal conductive sheets 2042 along the second direction A2-A2 form a second signal conductive sheet group DP2. In one embodiment of the present invention, the second signal conductive sheet group DP2 is a differential pair to improve signal transmission speed. Along the second direction A2-A2, each second signal conductive sheet group DP2 has a first ground conductive sheet 2071 and a second ground conductive sheet 2072 on both sides to improve shielding and enhance signal transmission quality. In the illustrated embodiment of the present invention, the length of each first ground conductive sheet 2071 along the first direction A1-A1 is greater than the length of each third signal conductive sheet 2041 along the first direction A1-A1, and also greater than the length of each fourth signal conductive sheet 2042 along the first direction A1-A1, thereby better improving shielding and enhancing signal transmission quality. The length of each second grounding conductive piece 2072 along the first direction A1-A1 is greater than the length of each third signal conductive piece 2041 along the first direction A1-A1, and also greater than the length of each fourth signal conductive piece 2042 along the first direction A1-A1, thereby improving shielding and enhancing the quality of signal transmission.

[0126] Specifically, in the embodiment illustrated in the present invention, a first signal conductive sheet group DP1 composed of the first signal conductive sheet 2031 and the second signal conductive sheet 2032, and a second signal conductive sheet group DP2 composed of the third signal conductive sheet 2041 and the fourth signal conductive sheet 2042, share the first ground conductive sheet 2071 and the second ground conductive sheet 2072. The first ground conductive sheet 2071 and the second ground conductive sheet 2072 extend along the first direction A1-A1 beyond the ends of the first signal conductive sheet 2031 and the second signal conductive sheet 2032 that are away from the second signal conductive sheet group DP2, and the first ground conductive sheet 2071 and the second ground conductive sheet 2072 extend along the first direction A1-A1 beyond the ends of the third signal conductive sheet 2041 and the fourth signal conductive sheet 2042 that are away from the first signal conductive sheet group DP1. With this configuration, regardless of whether it is the first signal conductive sheet group DP1 or the second signal conductive sheet group DP2, along the first direction A1-A1, the first ground conductive sheet 2071 and the second ground conductive sheet 2072 can provide a good shielding effect on both sides.

[0127] Similarly, please combine Figure 4As shown in the illustrated embodiment of the present invention, the plurality of third conductive sheets 205 include a plurality of fifth signal conductive sheets 2051 and a plurality of sixth signal conductive sheets 2052. Adjacent fifth signal conductive sheets 2051 and sixth signal conductive sheets 2052 along the second direction A2-A2 form a third signal conductive sheet group DP3. In one embodiment of the present invention, the third signal conductive sheet group DP3 is a differential pair to improve signal transmission speed. Along the second direction A2-A2, each third signal conductive sheet group DP3 has a third ground conductive sheet 2081 and a fourth ground conductive sheet 2082 on both sides to improve shielding and enhance signal transmission quality. In the illustrated embodiment of the present invention, the length of each third ground conductive sheet 2081 along the first direction A1-A1 is greater than the length of each fifth signal conductive sheet 2051 along the first direction A1-A1, and also greater than the length of each sixth signal conductive sheet 2052 along the first direction A1-A1, thereby better improving shielding and enhancing signal transmission quality. The length of each fourth grounding conductive piece 2082 along the first direction A1-A1 is greater than the length of each fifth signal conductive piece 2051 along the first direction A1-A1, and also greater than the length of each sixth signal conductive piece 2052 along the first direction A1-A1, thereby improving shielding and enhancing the quality of signal transmission.

[0128] In the illustrated embodiment of the present invention, the plurality of fourth conductive sheets 206 include a plurality of seventh signal conductive sheets 2061 and a plurality of eighth signal conductive sheets 2062. Adjacent seventh signal conductive sheets 2061 and eighth signal conductive sheets 2062 along the second direction A2-A2 form a fourth signal conductive sheet group DP4. In one embodiment of the present invention, the fourth signal conductive sheet group DP4 is a differential pair to improve signal transmission speed. Along the second direction A2-A2, each fourth signal conductive sheet group DP4 has a third ground conductive sheet 2081 and a fourth ground conductive sheet 2082 on both sides to improve shielding and enhance signal transmission quality. In the illustrated embodiment of the present invention, the length of each third ground conductive sheet 2081 along the first direction A1-A1 is greater than the length of each seventh signal conductive sheet 2061 along the first direction A1-A1, and also greater than the length of each eighth signal conductive sheet 2062 along the first direction A1-A1, thereby better improving shielding and enhancing signal transmission quality. The length of each fourth grounding conductive piece 2082 along the first direction A1-A1 is greater than the length of each seventh signal conductive piece 2061 along the first direction A1-A1, and also greater than the length of each eighth signal conductive piece 2062 along the first direction A1-A1, thereby improving shielding and enhancing the quality of signal transmission.

[0129] Specifically, in the embodiment illustrated in the present invention, the third signal conductive sheet group DP3, composed of the fifth signal conductive sheet 2051 and the sixth signal conductive sheet 2052, and the fourth signal conductive sheet group DP4, composed of the seventh signal conductive sheet 2061 and the eighth signal conductive sheet 2062, share the third ground conductive sheet 2081 and the fourth ground conductive sheet 2082. The third ground conductive sheet 2081 and the fourth ground conductive sheet 2082 extend along the first direction A1-A1 beyond the end of the fifth signal conductive sheet 2051 and the sixth signal conductive sheet 2052 away from the fourth signal conductive sheet group DP4, and the third ground conductive sheet 2081 and the fourth ground conductive sheet 2082 extend along the first direction A1-A1 beyond the end of the seventh signal conductive sheet 2061 and the eighth signal conductive sheet 2062 away from the third signal conductive sheet group DP3. With this configuration, regardless of whether it is the third signal conductive sheet group DP3 or the fourth signal conductive sheet group DP4, along the first direction A1-A1, both the third ground conductive sheet 2081 and the fourth ground conductive sheet 2082 can provide good shielding effect on both sides.

[0130] Please combine Figure 3 as well as Figure 4As shown in the illustrated embodiment of the present invention, the circuit board 200 further includes a plurality of positioning through holes 2091 penetrating the upper surface 201 and the lower surface 202 of the circuit board, a plurality of grounding fixing pieces 2092 exposed on the upper surface 201 of the circuit board, and a plurality of locking through holes 2093 penetrating the upper surface 201 and the lower surface 202 of the circuit board. The grounding fixing pieces 2092 are disposed around the positioning through holes 2091. The positioning through holes 2091 are used to position the electrical connector 100. The grounding fixing pieces 2092 are used to contact the electrical connector 100 to better achieve grounding and / or fixing. In one embodiment of the present invention, the grounding fixing pieces 2092 are welded to corresponding parts of the electrical connector 100, thereby achieving grounding while also increasing the bonding force between the electrical connector 100 and the circuit board 200. In one embodiment of the present invention, the plurality of grounding fixing pieces 2092 are connected into a whole by means of the internal conductive path of the circuit board 200 to increase the grounding area.

[0131] Please combine Figures 1 to 54 As shown, in one embodiment of the present invention, the electrical connector 100 includes an outer insulating shell 5, a first module M1, a second module M2, a third module M3, a fourth module M4, and a conductive mounting block 6. The conductive mounting block 6 is mounted on the first module M1, the second module M2, the third module M3, and the fourth module M4. The first module M1, the second module M2, the third module M3, and the fourth module M4 are all mounted on the outer insulating shell 5.

[0132] Please combine Figure 8 as well as Figure 9 As shown in the illustrated embodiment of the present invention, the outer insulating housing 5 includes a first receiving portion 51, a second receiving portion 52, and a raised portion 53 connecting the first receiving portion 51 and the second receiving portion 52 and located between the first receiving portion 51 and the second receiving portion 52. The first receiving portion 51 has a first mounting space 511, the second receiving portion 52 has a second mounting space 521, and the raised portion 53 has a communicating space 531 connecting the first mounting space 511 and the second mounting space 521. The first module M1 and the second module M2 are at least partially installed in the first mounting space 511. The third module M3 and the fourth module M4 are at least partially installed in the second mounting space 521. The first module M1, the second module M2, the third module M3, and the fourth module M4 are all at least partially located in the communicating space 531.

[0133] In the embodiment illustrated in the present invention, the second receiving portion 52 is provided with a mounting wall 522 and a plurality of mounting positioning posts 5221 protruding downward along the third direction A3-A3 from the mounting wall 522. The mounting wall 522 is provided with mounting slots 5222 located on both sides of the mounting positioning posts 5221 and a plurality of fixing slots 5223 located on both sides of the mounting wall 522.

[0134] In the illustrated embodiment of the present invention, the electrical connector 100 includes a plurality of metal fixing pieces 54. Each metal fixing piece 54 includes a fixing base 541 and a plurality of fixing inserts 542 bent from both sides of the fixing base 541. The fixing base 541 has a mounting through hole 5411 through which a mounting positioning post 5221 passes. The fixing inserts 542 are inserted into the mounting slot 5222. The mounting positioning post 5221 is inserted into the positioning through hole 2091 for positioning. The fixing base 541 is configured to be welded and fixed to the grounding fixing piece 2092.

[0135] Furthermore, in the embodiment illustrated in the present invention, the electrical connector 100 also includes a barb 55 partially fixed in the fixing groove 5223. The barb 55 protrudes downward from the mounting wall 522 along the third direction A3-A3. The barb 55 is configured to be inserted into the locking through hole 2093 to reliably mount the electrical connector 100 onto the circuit board 200.

[0136] Please combine Figure 18 , Figure 19 as well as Figures 34 to 36 As shown in the illustrated embodiment of the present invention, the first module M1 includes a first conductive body 11, a first insulating block 21 fixed to the first conductive body 11, a first terminal module 31 mounted on the first conductive body 11, and a first grounding piece 41 fixed to the first conductive body 11.

[0137] In one embodiment of the present invention, the first conductive body 11 is a metal shell made of metallic material to further improve the shielding effect and enhance the quality of signal transmission. In another embodiment of the present invention, the first conductive body 11 may also be a composite shell formed by electroplating metallic material onto an insulating material; this composite shell can also improve the shielding effect and enhance the quality of signal transmission.

[0138] In one embodiment of the present invention, the first conductive body 11 includes a first base 111 and a first protrusion 112 extending forward from the first base 111. The first base 111 has a first upper surface 1111, a first lower surface 1112, and a first rear surface 1115. The bottom of the first base 111 also has at least one first groove 1118 near the first protrusion 112. In the embodiment illustrated in the present invention, there are two first grooves 1118. The first base 111 also has a plurality of first mounting protrusions 1119 protruding into each of the first grooves 1118.

[0139] The first protrusion 112 has a second upper surface 1121, a second lower surface 1122, and a plurality of first filling grooves 1123 extending upward along the third direction A3-A3 through the second upper surface 1121. The first filling grooves 1123 extend forward along the first direction A1-A1 through the first front end face 1120 of the first protrusion 112. The first protrusion 112 also includes a plurality of first positioning posts 1124 protruding upward along the third direction A3-A3 from the second upper surface 1121.

[0140] Please combine Figure 19 As shown in the illustrated embodiment of the present invention, the first conductive body 11 further includes a plurality of first terminal module mounting slots 113 extending along the first direction A1-A1. Each first terminal module mounting slot 113 extends from the first base 111 to the first protrusion 112. The rear end of the first terminal module mounting slot 113 penetrates the first rear surface 1115 to form a first mounting opening 1116, the middle portion of the first terminal module mounting slot 113 is surrounded circumferentially by the wall portion of the first conductive body 11, and the front end of the first terminal module mounting slot 113 extends downward through the second lower surface 1122. Those skilled in the art will understand that by setting the middle portion of the first terminal module mounting slot 113 to be surrounded circumferentially by the wall portion of the first conductive body 11, on the one hand, the conductive terminals located in the first terminal module mounting slot 113 can be better shielded; on the other hand, adjacent first terminal module mounting slots 113 can be better separated, thereby reducing signal crosstalk. In addition, the first conductive body 11 also includes a first receiving slot 11a that extends along the first direction A1-A1 and passes forward through the first protrusion 112.

[0141] The plurality of first terminal module mounting slots 113 are arranged at intervals along the second direction A2-A2. The first conductive body 11 includes a plurality of first partition walls 114 arranged at intervals along the second direction A2-A2. Two adjacent first terminal module mounting slots 113 are separated by corresponding first partition walls 114 along the second direction A2-A2. In this configuration, each first terminal module mounting slot 113 is relatively independent, thereby reducing signal crosstalk and improving the quality of data transmission.

[0142] The first insulating block 21 is fixed in the first filling groove 1123. Preferably, in order to increase the bonding force between the first insulating block 21 and the first conductive body 11, the first insulating block 21 is formed in the first filling groove 1123. The first insulating 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 are connected to the corresponding first terminal module mounting groove 113. The first insulating block 21 is also provided with a first front surface 210, which is coplanar with the first front end surface 1120 of the first protrusion 112.

[0143] The first terminal module 31 includes a plurality of first conductive terminals 311, a first insulating fixing block 312 fixed to at least a portion of the plurality of first conductive terminals 311, a second insulating fixing block 313 fixed to at least a portion of the plurality of first conductive terminals 311, a first ground plane 314 mounted on the first insulating fixing block 312, and a second ground plane 315 mounted on the second insulating fixing block 313.

[0144] The plurality of first conductive terminals 311 include a first signal terminal S1, a second signal terminal S2, a first ground terminal G1 located on one side of the first signal terminal S1 and the second signal terminal S2, and a second ground terminal G2 located on the other side of the first signal terminal S1 and the second signal terminal S2. Preferably, the first signal terminal S1 and the second signal terminal S2 in each group of first conductive terminals 311 form a differential pair to improve signal transmission speed. The first ground terminal G1, the first signal terminal S1, the second signal terminal S2, and the second ground terminal G2 are arranged sequentially along the second direction A2-A2.

[0145] In the embodiment illustrated in the present invention, each first conductive terminal 311 includes a first fixing portion 3111 and a second fixing portion 3112 formed by bending the first fixing portion 3111. The first fixing portion 3111 extends along the first direction A1-A1, and the second fixing portion 3112 extends along the third direction A3-A3.

[0146] Furthermore, both the first signal terminal S1 and the second signal terminal S2 include a first contact arm 3113 protruding forward from the first insulating fixing block 312 along the first direction A1-A1. The first contact arm 3113 includes a first contact portion 3113a protruding into the first receiving slot 11a. Neither the first signal terminal S1 nor the second signal terminal S2 contacts the first conductive body 11 to prevent short circuits. The first grounding terminal G1 includes a first abutting portion 3114 protruding from the first insulating fixing block 312 along the first direction A1-A1; the second grounding terminal G2 includes a second abutting portion 3115 protruding from the first insulating fixing block 312. At least one of the first abutting portion 3114 and the second abutting portion 3115 contacts the first conductive body 11 to achieve grounding. In the embodiment illustrated in the present invention, both the first abutting portion 3114 and the second abutting portion 3115 contact the first conductive body 11 to achieve grounding. The first abutting portion 3114 is in elastic or non-elastic contact with the first conductive body 11; and / or the second abutting portion 3115 is in elastic or non-elastic contact with the first conductive body 11. In some embodiments of the present invention, both the first abutting portion 3114 and the second abutting portion 3115 are fixed to the first conductive body 11 (e.g., by welding).

[0147] Please combine Figure 51 As shown, in the first embodiment of the present invention, the first abutting portion 3114 and the first fixing portion 3111 of the first grounding terminal G1 are aligned along the first direction A1-A1 and located in the same plane. The first conductive body 11 is provided with a first receiving groove 118 for receiving the first abutting portion 3114, and the first receiving groove 118 is recessed forward from the first rear surface 1115. When the first abutting portion 3114 is inserted into the first receiving groove 118, the first abutting portion 3114 comes into contact with the first conductive body 11, thereby connecting the first conductive body 11 and the first grounding terminal G1 into an integral grounding path to improve the grounding effect. The second abutting portion 3115 of the second grounding terminal G2 has the same structure as the first abutting portion 3114 of the first grounding terminal G1, and will not be described again in the present invention. Furthermore, the structure of the grounding terminal in the second module M2, the third module M3, and the fourth module M4, as well as the matching structure with the corresponding conductive body, should be compared with the structure of the first contact part 3114 and the second contact part 3115 in the first module M1 and the structure of the first conductive body 11. The comparison of the present invention will not be repeated here.

[0148] Please combine Figure 53As shown, in the second embodiment of the present invention, in order to improve the contact reliability between the first abutment portion 3114 and the first conductive body 11, the first abutment portion 3114 is further provided with at least one raised convex bulge 3114c, which abuts against the first conductive body 11. The convex bulge 3114c is located on at least one side of the first abutment portion 3114. The convex bulge 3114c is integrally formed with the first abutment portion 3114. In one embodiment of the present invention, the convex bulge 3114c is integrally stamped from the first abutment portion 3114. Of course, those skilled in the art will understand that the convex bulge 3114c can also be combined with the first abutment portion 3114 in other ways, which will not be described in detail here. The second abutment portion 3115 of the second grounding terminal G2 has the same structure as the first abutment portion 3114 of the first grounding terminal G1, which will not be described in detail here. Furthermore, the structure of the grounding terminal in the second module M2, the third module M3, and the fourth module M4, as well as the matching structure with the corresponding conductive body, should be compared with the structure of the first contact part 3114 and the second contact part 3115 in the first module M1 and the structure of the first conductive body 11. The comparison of the present invention will not be repeated here.

[0149] Please combine Figure 52As shown, in the third embodiment of the present invention, the first abutting portion 3114 and the first fixing portion 3111 of the first grounding terminal G1 are not aligned along the first direction A1-A1 and are located in different planes. Specifically, the first abutting portion 3114 is generally L-shaped, and it has a first bent portion 3114a connected to the first fixing portion 3111 of the first grounding terminal G1 and a first extension portion 3114b extending from the first bent portion 3114a. The first bent portion 3114a extends along the third direction A3-A3, and the first extension portion 3114b extends along the first direction A1-A1. The first conductive body 11 has a first slot 119 for receiving the first abutting portion 3114, and the first slot 119 is recessed downward from the first upper surface 1111 of the first base portion 111. When the first abutment portion 3114 is installed into the first slot 119, the first extension portion 3114b of the first abutment portion 3114 contacts the first conductive body 11, thereby connecting the first conductive body 11 and the first grounding terminal G1 into an integral grounding path to improve the grounding effect. The second abutment portion 3115 of the second grounding terminal G2 has the same structure as the first abutment portion 3114 of the first grounding terminal G1, and will not be described again in this invention. In addition, the structures of the grounding terminals in the second module M2, the third module M3, and the fourth module M4, as well as their mating structures with the corresponding conductive bodies, should be compared with the structures of the first abutment portion 3114 and the second abutment portion 3115 in the first module M1 and the structure of the first conductive body 11, and will not be described again in this invention.

[0150] Please combine Figure 54 As shown, in the fourth embodiment of the present invention, the first abutting portion 3114 is in the shape of a spring arm, which is bent from the first fixing portion 3111 of the first grounding terminal G1. Specifically, the first abutting portion 3114 has an abutting surface 3114d that abuts against the first conductive body 11, so that the first conductive body 11 and the first grounding terminal G1 form an integral grounding path to improve the grounding effect. The second abutting portion 3115 of the second grounding terminal G2 has the same structure as the first abutting portion 3114 of the first grounding terminal G1, and will not be described again in the present invention. In addition, the structure of the grounding terminals in the second module M2, the third module M3, and the fourth module M4, and their mating structure with the corresponding conductive bodies, should be compared with the structure of the first abutting portion 3114 and the second abutting portion 3115 in the first module M1 and the structure of the first conductive body 11, and will not be described again in the present invention.

[0151] In the embodiment illustrated in the present invention, the first abutment portion 3114 is located at the free end of the first grounding terminal G1, and the first grounding terminal G1 does not have a first contact arm 3113 protruding into the first receiving slot 11a. Similarly, the second abutment portion 3115 is located at the free end of the second grounding terminal G2, and the second grounding terminal G2 does not have a first contact arm 3113 protruding into the first receiving slot 11a.

[0152] The first insulating fixing block 312 is at least partially fixed to the first fixing portion 3111 of the first signal terminal S1, the first fixing portion 3111 of the second signal terminal S2, the first fixing portion 3111 of the first grounding terminal G1, and the first fixing portion 3111 of the second grounding terminal G2. The first contact arm 3113 of the first signal terminal S1 is connected to the first fixing portion 3111 of the first signal terminal S1; the first contact arm 3113 of the second signal terminal S2 is connected to the first fixing portion 3111 of the second signal terminal S2. The first abutting portion 3114 of the first grounding terminal G1 is connected to the first fixing portion 3111 of the first grounding terminal G1; the second abutting portion 3115 of the second grounding terminal G2 is connected to the first fixing portion 3111 of the second grounding terminal G2.

[0153] In addition, the first terminal module 31 also includes a first insulating connecting block 316 fixed on the first signal terminal S1 and the second signal terminal S2, and the first insulating connecting block 316 is installed into the first terminal module mounting groove 113 through the first mounting opening 1116.

[0154] In the embodiment illustrated in the present invention, the first insulating connecting block 316 and the first insulating fixing block 312 are spaced apart along the first direction A1-A1, and the first insulating connecting block 316 is closer to the first contact portion 3113a than the first insulating fixing block 312. Neither the first abutting portion 3114 nor the second abutting portion 3115 extends beyond the first insulating connecting block 316.

[0155] The first grounding plate 314 is mounted on the first insulating fixing block 312. The first grounding plate 314 includes a first mating portion 3141 that contacts at least a portion of the first fixing portion 3111 of the first grounding terminal G1, a second mating portion 3142 that contacts at least a portion of the first fixing portion 3111 of the second grounding terminal G2, and a first raised portion 3143 connecting the first mating portion 3141 and the second mating portion 3142. The first raised portion 3143 does not contact the first fixing portion 3111 of the first signal terminal S1 or the first fixing portion 3111 of the second signal terminal S2 to prevent short circuits.

[0156] In the embodiment illustrated in the present invention, the second insulating fixing block 313 is at least partially fixed on the second fixing part 3112 of the first signal terminal S1, the second fixing part 3112 of the second signal terminal S2, the second fixing part 3112 of the first grounding terminal G1, and the second fixing part 3112 of the second grounding terminal G2.

[0157] The first signal terminal S1 further includes a first mounting foot 3116 formed by bending the second fixing portion 3112 of the first signal terminal S1. The first mounting foot 3116 protrudes from the second insulating fixing block 313 and is configured to be mounted on the first signal conductive sheet 2031 of the circuit board 200. The second signal terminal S2 further includes a second mounting foot 3117 formed by bending the second fixing portion 3112 of the second signal terminal S2. The second mounting foot 3117 protrudes from the second insulating fixing block 313 and is configured to be mounted on the second signal conductive sheet 2032 of the circuit board 200. The first ground terminal G1 includes a first tail portion 3118 extending from the second fixing portion 3112 of the first ground terminal G1 and protruding from the second insulating fixing block 313. The second ground terminal G2 includes a second tail portion 3119 extending from the second fixing portion 3112 of the second ground terminal G2 and protruding from the second insulating fixing block 313. Neither the first tail portion 3118 nor the second tail portion 3119 is directly mounted on the circuit board 200.

[0158] In the illustrated embodiment of the present invention, the first mounting pin 3116 of the first signal terminal S1 is perpendicular to the second fixing portion 3112 of the first signal terminal S1; the second mounting pin 3117 of the second signal terminal S2 is perpendicular to the second fixing portion 3112 of the second signal terminal S2; the first tail portion 3118 of the first ground terminal G1 extends along the third direction A3-A3; the second tail portion 3119 of the second ground terminal G2 extends along the third direction A3-A3. In the illustrated embodiment of the present invention, both the first mounting pin 3116 and the second mounting pin 3117 extend horizontally rearward to contact the first signal conductive piece 2031 and the second signal conductive piece 2032 of the circuit board 200, respectively. Those skilled in the art will understand that in the illustrated embodiment of the present invention, the first mounting pin 3116 and the second mounting pin 3117 can be soldered to the first signal conductive piece 2031 and the second signal conductive piece 2032 of the circuit board 200 using SMT (Surface Mounted Technology).

[0159] The second grounding plate 315 is mounted on the second insulating fixing block 313. The second grounding plate 315 includes a third mating portion 3151 that contacts at least a portion of the second fixing portion 3112 of the first grounding terminal G1, a fourth mating portion 3152 that contacts at least a portion of the second fixing portion 3112 of the second grounding terminal G2, and a second raised portion 3153 connecting the third mating portion 3151 and the fourth mating portion 3152. The second raised portion 3153 does not contact the second fixing portion 3112 of the first signal terminal S1 or the second fixing portion 3112 of the second signal terminal S2 to prevent short circuits.

[0160] In the embodiment illustrated in the present invention, by setting the first grounding plate 314 and the second grounding plate 315, all the first grounding terminals G1 and all the second grounding terminals G2 are connected in series, which is beneficial to improve the grounding shielding effect and improve the quality of signal transmission.

[0161] In the embodiment illustrated in the present invention, there are two first grounding plates 41, each made of metal. 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 extension plate 414 extending downward and rearward from the other side of the second mounting plate 412. The first mounting plate 411 has a first mounting positioning hole 4111 that mates with the first positioning post 1124. The first extension plate 414 is received in a first groove 1118 of a corresponding first conductive body 11, and the first extension plate 414 has a first mounting hole 4141 that mates with the first mounting protrusion 1119.

[0162] The first connecting plate 413 abuts against and at least partially shields the first front surface 210 of the first insulating block 21. The first connecting plate 413 is located at the front end of the first mating slot 101 along the first direction A1-A1; when the mating module is inserted, the tongue plate may first contact the first connecting plate 413, thereby facilitating the release of static electricity. The second mounting plate 412 is provided with a plurality of first grounding spring arms 415 arranged at intervals along the second direction A2-A2. Each pair of first contact arms 3113 of each group of first conductive terminals 311 is provided with a first grounding spring arm 415 to improve the shielding effect and enhance the quality of signal transmission.

[0163] In one embodiment of the present invention, the first positioning post 1124 is fixed to the first mounting positioning hole 4111, thereby fixing the first mounting plate 411 to the second upper surface 1121 of the first protrusion 112. In another embodiment of the present invention, the size of the first mounting hole 4141 along the first direction A1-A1 can be slightly larger than the size of the first mounting protrusion 1119 along the first direction A1-A1, so that when the first grounding spring arm 415 is deformed by the first grounding contact piece of the docking module, the first extension plate 414 can move appropriately in the first groove 1118 along the first direction A1-A1.

[0164] In the embodiment illustrated in the present invention, the second module M2 includes a second conductive body 12, a second insulating block 22 fixed to the second conductive body 12, a second terminal module 32 mounted on the second conductive body 12, and a second grounding piece 42 fixed to the second conductive body 12.

[0165] In one embodiment of the present invention, the second conductive body 12 is a metal shell made of metallic material to further improve the shielding effect and enhance the quality of signal transmission. In another embodiment of the present invention, the second conductive body 12 may also be a composite shell formed by electroplating metallic material onto an insulating material; this composite shell can also improve the shielding effect and enhance the quality of signal transmission.

[0166] In one embodiment of the present invention, the second conductive body 12 includes a second base 121 and a second protrusion 122 extending forward from the second base 121. The second base 121 has a third upper surface 1211, a third lower surface 1212, and a second rear surface 1215. The top of the second base 121 also has at least one second groove 1218 near the second protrusion 122. In the embodiment illustrated in the present invention, there are two second grooves 1218. The second base 121 also has a plurality of second mounting protrusions 1219 protruding into each of the second grooves 1218.

[0167] The second protrusion 122 has a fourth upper surface 1221, a fourth lower surface 1222, and a plurality of second filling grooves 1223 extending downward along the third direction A3-A3 through the fourth lower surface 1222. The second filling grooves 1223 extend forward along the first direction A1-A1 through the second front end face 1220 of the second protrusion 122. The second protrusion 122 also includes a plurality of second positioning posts 1224 protruding downward along the third direction A3-A3 from the fourth lower surface 1222.

[0168] Please combine Figure 20As shown in the illustrated embodiment of the present invention, the second conductive body 12 further includes a plurality of second terminal module mounting slots 123 extending along the first direction A1-A1. Each second terminal module mounting slot 123 extends from the second base 121 to the second protrusion 122. The rear end of the second terminal module mounting slot 123 penetrates the second rear surface 1215 to form a second mounting opening 1216, the middle portion of the second terminal module mounting slot 123 is surrounded circumferentially by the wall portion of the second conductive body 12, and the front end of the second terminal module mounting slot 123 extends upward through the fourth upper surface 1221. Those skilled in the art will understand that by setting the middle portion of the second terminal module mounting slot 123 to be surrounded circumferentially by the wall portion of the second conductive body 12, on the one hand, the conductive terminals located in the second terminal module mounting slot 123 can be better shielded; on the other hand, adjacent second terminal module mounting slots 123 can be better separated, thereby reducing signal crosstalk. In addition, the second conductive body 12 also includes a second receiving slot 12a that extends along the first direction A1-A1 and passes forward through the second protrusion 122.

[0169] The plurality of second terminal module mounting slots 123 are arranged at intervals along the second direction A2-A2. The second conductive body 12 includes a plurality of second partition walls 124 arranged at intervals along the second direction A2-A2. Two adjacent second terminal module mounting slots 123 are separated by corresponding second partition walls 124 along the second direction A2-A2. In this configuration, each second terminal module mounting slot 123 is relatively independent, thereby reducing signal crosstalk and improving the quality of data transmission.

[0170] The second insulating block 22 is fixed in the second filling groove 1223. Preferably, in order to increase the bonding force between the second insulating block 22 and the second conductive body 12, the second insulating block 22 is formed in the second filling groove 1223. The second insulating 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 are connected to the corresponding second terminal module mounting groove 123. The second insulating block 22 is also provided with a second front surface 220, which is coplanar with the second front end surface 1220 of the second protrusion 122.

[0171] The second terminal module 32 includes a plurality of second conductive terminals 321, a third insulating fixing block 322 fixed at least on a portion of the plurality of second conductive terminals 321, a fourth insulating fixing block 323 fixed at least on a portion of the plurality of second conductive terminals 321, a third grounding plate 324 mounted on the third insulating fixing block 322, and a fourth grounding plate 325 mounted on the fourth insulating fixing block 323.

[0172] The plurality of second conductive terminals 321 include a third signal terminal S3, a fourth signal terminal S4, a third ground terminal G3 located on one side of the third signal terminal S3 and the fourth signal terminal S4, and a fourth ground terminal G4 located on the other side of the third signal terminal S3 and the fourth signal terminal S4. Preferably, the third signal terminal S3 and the fourth signal terminal S4 in each group of second conductive terminals 321 form a differential pair to improve signal transmission speed. The third ground terminal G3, the third signal terminal S3, the fourth signal terminal S4, and the fourth ground terminal G4 are arranged sequentially along the second direction A2-A2.

[0173] In the illustrated embodiment of the present invention, each second conductive terminal 321 includes a third fixing portion 3211 and a fourth fixing portion 3212 formed by bending the third fixing portion 3211. The third fixing portion 3211 extends along the first direction A1-A1, and the fourth fixing portion 3212 extends along the third direction A3-A3.

[0174] Furthermore, both the third signal terminal S3 and the fourth signal terminal S4 include a second contact arm 3213 protruding forward from the third insulating fixing block 322 along the first direction A1-A1. The second contact arm 3213 includes a second contact portion 3213a protruding into the second receiving slot 12a. Neither the third signal terminal S3 nor the fourth signal terminal S4 contacts the second conductive body 12 to prevent short circuits. The third grounding terminal G3 includes a third abutting portion 3214 protruding from the third insulating fixing block 322 along the first direction A1-A1; the fourth grounding terminal G4 includes a fourth abutting portion 3215 protruding from the third insulating fixing block 322. At least one of the third abutting portion 3214 and the fourth abutting portion 3215 contacts the second conductive body 12 to achieve grounding. In the embodiment illustrated in the present invention, both the third abutting portion 3214 and the fourth abutting portion 3215 contact the second conductive body 12 to achieve grounding. The third abutting portion 3214 is in elastic or non-elastic contact with the second conductive body 12; and / or the fourth abutting portion 3215 is in elastic or non-elastic contact with the second conductive body 12.

[0175] The third abutment portion 3214 is located at the free end of the third grounding terminal G3, which does not have a second contact arm 3213 protruding into the second receiving slot 12a. Similarly, the fourth abutment portion 3215 is located at the free end of the fourth grounding terminal G4, which does not have a second contact arm 3213 protruding into the second receiving slot 12a.

[0176] The third insulating fixing block 322 is at least partially fixed to the third fixing part 3211 of the third signal terminal S3, the third fixing part 3211 of the fourth signal terminal S4, the third fixing part 3211 of the third grounding terminal G3, and the third fixing part 3211 of the fourth grounding terminal G4. The second contact arm 3213 of the third signal terminal S3 is connected to the third fixing part 3211 of the third signal terminal S3; the second contact arm 3213 of the fourth signal terminal S4 is connected to the third fixing part 3211 of the fourth signal terminal S4. The third abutment part 3214 of the third grounding terminal G3 is connected to the third fixing part 3211 of the third grounding terminal G3; the fourth abutment part 3215 of the fourth grounding terminal G4 is connected to the third fixing part 3211 of the fourth grounding terminal G4.

[0177] In addition, the second terminal module 32 also includes a second insulating bonding block 326 fixed on the third signal terminal S3 and the fourth signal terminal S4, and the second insulating bonding block 326 is installed into the second terminal module mounting groove 123 through the second mounting opening 1216.

[0178] In the illustrated embodiment of the present invention, the second insulating connecting block 326 and the third insulating fixing block 322 are spaced apart along the first direction A1-A1, and the second insulating connecting block 326 is closer to the second contact portion 3213a than the third insulating fixing block 322. Neither the third abutting portion 3214 nor the fourth abutting portion 3215 extends beyond the second insulating connecting block 326.

[0179] The third grounding plate 324 is mounted on the third insulating fixing block 322. The third grounding plate 324 includes a fifth mating portion 3241 that contacts at least a portion of the third fixing portion 3211 of the third grounding terminal G3, a sixth mating portion 3242 that contacts at least a portion of the third fixing portion 3211 of the fourth grounding terminal G4, and a third raised portion 3243 connecting the fifth mating portion 3241 and the sixth mating portion 3242. The third raised portion 3243 does not contact the third fixing portion 3211 of the third signal terminal S3 and the third fixing portion 3211 of the fourth signal terminal S4 to prevent short circuits.

[0180] In the embodiment illustrated in the present invention, the fourth insulating fixing block 323 is at least partially fixed to the fourth fixing part 3212 of the third signal terminal S3, the fourth fixing part 3212 of the fourth signal terminal S4, the fourth fixing part 3212 of the third grounding terminal G3, and the fourth fixing part 3212 of the fourth grounding terminal G4.

[0181] The third signal terminal S3 further includes a third mounting foot 3216 formed by bending the fourth fixing portion 3212 of the third signal terminal S3. The third mounting foot 3216 protrudes from the fourth insulating fixing block 323 and is configured to be mounted on the third signal conductive sheet 2041 of the circuit board 200. The fourth signal terminal S4 further includes a fourth mounting foot 3217 formed by bending the fourth fixing portion 3212 of the fourth signal terminal S4. The fourth mounting foot 3217 protrudes from the fourth insulating fixing block 323 and is configured to be mounted on the fourth signal conductive sheet 2042 of the circuit board 200. The third ground terminal G3 includes a third tail portion 3218 extending from the fourth fixing portion 3212 of the third ground terminal G3 and protruding from the fourth insulating fixing block 323. The fourth ground terminal G4 includes a fourth tail portion 3219 extending from the fourth fixing portion 3212 of the fourth ground terminal G4 and protruding from the fourth insulating fixing block 323. Neither the third tail portion 3218 nor the fourth tail portion 3219 is directly mounted on the circuit board 200.

[0182] In the illustrated embodiment of the present invention, the third mounting pin 3216 of the third signal terminal S3 is perpendicular to the fourth fixing portion 3212 of the third signal terminal S3; the fourth mounting pin 3217 of the fourth signal terminal S4 is perpendicular to the fourth fixing portion 3212 of the fourth signal terminal S4; the third tail portion 3218 of the third ground terminal G3 extends along the third direction A3-A3; and the fourth tail portion 3219 of the fourth ground terminal G4 extends along the third direction A3-A3. In the illustrated embodiment of the present invention, both the third mounting pin 3216 and the fourth mounting pin 3217 extend horizontally rearward to contact the third signal conductive piece 2041 and the fourth signal conductive piece 2042 of the circuit board 200, respectively. Those skilled in the art will understand that in the illustrated embodiment of the present invention, the third mounting pin 3216 and the fourth mounting pin 3217 can be soldered to the third signal conductive piece 2041 and the fourth signal conductive piece 2042 of the circuit board 200 using SMT (Surface Mounted Technology).

[0183] The fourth grounding plate 325 is mounted on the fourth insulating fixing block 323. The fourth grounding plate 325 includes a seventh mating portion 3251 that contacts at least a portion of the fourth fixing portion 3212 of the third grounding terminal G3, an eighth mating portion 3252 that contacts at least a portion of the fourth fixing portion 3212 of the fourth grounding terminal G4, and a fourth raised portion 3253 connecting the seventh mating portion 3251 and the eighth mating portion 3252. The fourth raised portion 3253 does not contact the fourth fixing portion 3212 of the third signal terminal S3 and the fourth fixing portion 3212 of the fourth signal terminal S4 to prevent short circuits.

[0184] In the embodiment illustrated in the present invention, by setting the third grounding plate 324 and the fourth grounding plate 325, all the third grounding terminals G3 and all the fourth grounding terminals G4 are connected in series, which is beneficial to improve the grounding shielding effect and improve the quality of signal transmission.

[0185] In the illustrated embodiment of the present invention, there are two second grounding plates 42, each made of metal. Each second grounding plate 42 is generally 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 extension plate 424 extending downward and rearward from the other side of the fourth mounting plate 422. The third mounting plate 421 has a second mounting positioning hole 4211 that mates with the second positioning post 1224. The second extension plate 424 is received in a second groove 1218 of a corresponding second conductive body 12, and the second extension plate 424 has a second mounting hole 4241 that mates with the second mounting protrusion 1219.

[0186] The second connecting plate 423 abuts against and at least partially shields the second front surface 220 of the second insulating block 22. The second connecting plate 423 is located at the front end of the first mating slot 101 along the first direction A1-A1; when the mating module is inserted, the tongue plate may first contact the second connecting plate 423, thereby facilitating the release of static electricity. The fourth mounting plate 422 is provided with a plurality of second grounding spring arms 425 arranged at intervals along the second direction A2-A2. A second grounding spring arm 425 is provided on both sides of the second contact arm 3213 of each group of second conductive terminals 321 to improve the shielding effect and enhance the quality of signal transmission.

[0187] In one embodiment of the present invention, the second positioning post 1224 is fixed to the second mounting positioning hole 4211, thereby fixing the third mounting plate 421 to the fourth upper surface 1221 of the second protrusion 122. In another embodiment of the present invention, the size of the second mounting hole 4241 along the first direction A1-A1 can be slightly larger than the size of the second mounting protrusion 1219 along the first direction A1-A1, so that when the second grounding spring arm 425 is deformed by the first grounding contact piece of the docking module, the second extension plate 424 can move appropriately in the second groove 1218 along the first direction A1-A1.

[0188] Please combine Figure 10 As shown, in one embodiment of the present invention, the first conductive body 11 and the second conductive body 12 are fixed together. For example, after the first conductive body 11 and the second conductive body 12 are assembled, they are then fixed together by welding or other means. The first receiving slot 11a and the second receiving slot 12a are interconnected to form the first mating slot 101.

[0189] In the embodiment illustrated in the present invention, the third module M3 includes a third conductive body 13, a third insulating block 23 fixed to the third conductive body 13, a third terminal module 33 installed on the third conductive body 13, and a third grounding piece 43 fixed to the third conductive body 13.

[0190] In one embodiment of the present invention, the third conductive body 13 is a metal shell made of metallic material to further improve the shielding effect and enhance the quality of signal transmission. In another embodiment of the present invention, the third conductive body 13 may also be a composite shell formed by electroplating metallic material onto an insulating material; this composite shell can also improve the shielding effect and enhance the quality of signal transmission.

[0191] In one embodiment of the present invention, the third conductive body 13 includes a third base 131 and a third protrusion 132 extending forward from the third base 131. The third base 131 has a fifth upper surface 1311, a fifth lower surface 1312, and a third rear surface 1315. The bottom of the third base 131 also has at least one third groove 1318 near the third protrusion 132. In the embodiment illustrated in the present invention, there are two third grooves 1318. The third base 131 also has a plurality of third mounting protrusions 1319 protruding into each third groove 1318.

[0192] The third protrusion 132 is provided with a sixth upper surface 1321, a sixth lower surface 1322, and a plurality of third filling grooves 1323 extending upward along the third direction A3-A3 through the sixth upper surface 1321. The third filling grooves 1323 extend forward along the first direction A1-A1 through the third front end face 1320 of the third protrusion 132. The third protrusion 132 also includes a plurality of third positioning posts 1324 protruding upward along the third direction A3-A3 from the sixth upper surface 1321.

[0193] Please combine Figure 23 As shown in the illustrated embodiment of the present invention, the third conductive body 13 further includes a plurality of third terminal module mounting slots 133 extending along the first direction A1-A1. Each third terminal module mounting slot 133 extends from the third base 131 to the third protrusion 132. The rear end of the third terminal module mounting slot 133 penetrates the third rear surface 1315 to form a third mounting opening 1316. The middle portion of the third terminal module mounting slot 133 is surrounded circumferentially by the wall portion of the third conductive body 13, and the front end of the third terminal module mounting slot 133 extends downward through the sixth lower surface 1322. Those skilled in the art will understand that by setting the middle portion of the third terminal module mounting slot 133 to be surrounded circumferentially by the wall portion of the third conductive body 13, on the one hand, the conductive terminals located in the third terminal module mounting slot 133 can be better shielded; on the other hand, adjacent third terminal module mounting slots 133 can be better separated, thereby reducing signal crosstalk. In addition, the third conductive body 13 also includes a third receiving slot 13a that extends along the first direction A1-A1 and passes forward through the third protrusion 132.

[0194] The plurality of third terminal module mounting slots 133 are arranged at intervals along the second direction A2-A2. The third conductive body 13 includes a plurality of third partition walls 134 arranged at intervals along the second direction A2-A2. Two adjacent third terminal module mounting slots 133 are separated by corresponding third partition walls 134 along the second direction A2-A2. In this configuration, each third terminal module mounting slot 133 is relatively independent, thereby reducing signal crosstalk and improving the quality of data transmission.

[0195] The third insulating block 23 is fixed in the third filling groove 1323. Preferably, in order to increase the bonding force between the third insulating block 23 and the third conductive body 13, the third insulating block 23 is formed in the third filling groove 1323. The third insulating block 23 is provided with a plurality of fifth slots 231 and a plurality of sixth slots 232, wherein adjacent fifth slots 231 and sixth slots 232 form a group and are connected to the corresponding third terminal module mounting groove 133. The third insulating block 23 is also provided with a third front surface 230, which is coplanar with the third front end surface 1320 of the third protrusion 132.

[0196] The third terminal module 33 includes a plurality of third conductive terminals 331, a fifth insulating fixing block 332 fixed to at least a portion of the plurality of third conductive terminals 331, a sixth insulating fixing block 333 fixed to at least a portion of the plurality of third conductive terminals 331, a fifth ground plate 334 mounted on the fifth insulating fixing block 332, and a sixth ground plate 335 mounted on the sixth insulating fixing block 333.

[0197] The plurality of third conductive terminals 331 include a fifth signal terminal S5, a sixth signal terminal S6, a fifth ground terminal G5 located on one side of the fifth signal terminal S5 and the sixth signal terminal S6, and a sixth ground terminal G6 located on the other side of the fifth signal terminal S5 and the sixth signal terminal S6. Preferably, the fifth signal terminal S5 and the sixth signal terminal S6 in each group of third conductive terminals 331 form a differential pair to improve signal transmission speed. The fifth ground terminal G5, the fifth signal terminal S5, the sixth signal terminal S6, and the sixth ground terminal G6 are arranged sequentially along the second direction A2-A2.

[0198] In the illustrated embodiment of the present invention, each third conductive terminal 331 includes a fifth fixing portion 3311 and a sixth fixing portion 3312 formed by bending the fifth fixing portion 3311. The fifth fixing portion 3311 extends along the first direction A1-A1, and the sixth fixing portion 3312 extends along the third direction A3-A3.

[0199] Furthermore, both the fifth signal terminal S5 and the sixth signal terminal S6 include a third contact arm 3313 protruding forward from the fifth insulating fixing block 332 along the first direction A1-A1. The third contact arm 3313 includes a third contact portion 3313a protruding into the third receiving slot 13a. Neither the fifth signal terminal S5 nor the sixth signal terminal S6 contacts the third conductive body 13 to prevent short circuits. The fifth grounding terminal G5 includes a fifth abutment portion 3314 protruding from the fifth insulating fixing block 332 along the first direction A1-A1; the sixth grounding terminal G6 includes a sixth abutment portion 3315 protruding from the fifth insulating fixing block 332. At least one of the fifth abutment portion 3314 and the sixth abutment portion 3315 contacts the third conductive body 13 to achieve grounding. In the embodiment illustrated in the present invention, both the fifth abutment portion 3314 and the sixth abutment portion 3315 contact the third conductive body 13 to achieve grounding. The fifth abutment portion 3314 is in elastic or non-elastic contact with the third conductive body 13; and / or the sixth abutment portion 3315 is in elastic or non-elastic contact with the third conductive body 13.

[0200] The fifth abutment portion 3314 is located at the free end of the fifth grounding terminal G5, which does not have a third contact arm 3313 protruding into the third receiving slot 13a. Similarly, the sixth abutment portion 3315 is located at the free end of the sixth grounding terminal G6, which does not have a third contact arm 3313 protruding into the third receiving slot 13a.

[0201] The fifth insulating fixing block 332 is at least partially fixed to the fifth fixing part 3311 of the fifth signal terminal S5, the fifth fixing part 3311 of the sixth signal terminal S6, the fifth fixing part 3311 of the fifth grounding terminal G5, and the fifth fixing part 3311 of the sixth grounding terminal G6. The third contact arm 3313 of the fifth signal terminal S5 is connected to the fifth fixing part 3311 of the fifth signal terminal S5; the third contact arm 3313 of the sixth signal terminal S6 is connected to the fifth fixing part 3311 of the sixth signal terminal S6. The fifth abutment part 3314 of the fifth grounding terminal G5 is connected to the fifth fixing part 3311 of the fifth grounding terminal G5; the sixth abutment part 3315 of the sixth grounding terminal G6 is connected to the fifth fixing part 3311 of the sixth grounding terminal G6.

[0202] In addition, the third terminal module 33 also includes a third insulating connecting block 336 fixed on the fifth signal terminal S5 and the sixth signal terminal S6, and the third insulating connecting block 336 is installed into the third terminal module mounting groove 133 through the third mounting opening 1316.

[0203] In the embodiment illustrated in the present invention, the third insulating connecting block 336 and the fifth insulating fixing block 332 are spaced apart along the first direction A1-A1, and the third insulating connecting block 336 is closer to the third contact portion 3313a than the fifth insulating fixing block 332. Neither the fifth abutting portion 3314 nor the sixth abutting portion 3315 extends beyond the third insulating connecting block 336.

[0204] The fifth grounding plate 334 is mounted on the fifth insulating fixing block 332. The fifth grounding plate 334 includes a ninth mating portion 3341 that contacts at least a portion of the fifth fixing portion 3311 of the fifth grounding terminal G5, a tenth mating portion 3342 that contacts at least a portion of the fifth fixing portion 3311 of the sixth grounding terminal G6, and a fifth raised portion 3343 connecting the ninth mating portion 3341 and the tenth mating portion 3342. The fifth raised portion 3343 does not contact the fifth fixing portion 3311 of the fifth signal terminal S5 and the fifth fixing portion 3311 of the sixth signal terminal S6 to prevent short circuits.

[0205] In the embodiment illustrated in the present invention, the sixth insulating fixing block 333 is at least partially fixed to the sixth fixing part 3312 of the fifth signal terminal S5, the sixth fixing part 3312 of the sixth signal terminal S6, the sixth fixing part 3312 of the fifth grounding terminal G5, and the sixth fixing part 3312 of the sixth grounding terminal G6.

[0206] The fifth signal terminal S5 further includes a fifth mounting foot 3316 formed by bending the sixth fixing portion 3312 of the fifth signal terminal S5. The fifth mounting foot 3316 protrudes from the sixth insulating fixing block 333 and is configured to be mounted on the fifth signal conductive sheet 2051 of the circuit board 200. The sixth signal terminal S6 further includes a sixth mounting foot 3317 formed by bending the sixth fixing portion 3312 of the sixth signal terminal S6. The sixth mounting foot 3317 protrudes from the sixth insulating fixing block 333 and is configured to be mounted on the sixth signal conductive sheet 2052 of the circuit board 200. The fifth ground terminal G5 includes a fifth tail portion 3318 extending from the sixth fixing portion 3312 of the fifth ground terminal G5 and protruding from the sixth insulating fixing block 333. The sixth ground terminal G6 includes a sixth tail portion 3319 extending from the sixth fixing portion 3312 of the sixth ground terminal G6 and protruding from the sixth insulating fixing block 333. Neither the fifth tail portion 3318 nor the sixth tail portion 3319 is directly mounted on the circuit board 200.

[0207] In the illustrated embodiment of the present invention, the fifth mounting pin 3316 of the fifth signal terminal S5 is perpendicular to the sixth fixing portion 3312 of the fifth signal terminal S5; the sixth mounting pin 3317 of the sixth signal terminal S6 is perpendicular to the sixth fixing portion 3312 of the sixth signal terminal S6; the fifth tail portion 3318 of the fifth ground terminal G5 extends along the third direction A3-A3; the sixth tail portion 3319 of the sixth ground terminal G6 extends along the third direction A3-A3. In the illustrated embodiment of the present invention, both the fifth mounting pin 3316 and the sixth mounting pin 3317 extend horizontally rearward to contact the fifth signal conductive piece 2051 and the sixth signal conductive piece 2052 of the circuit board 200, respectively. Those skilled in the art will understand that in the illustrated embodiment of the present invention, the fifth mounting pin 3316 and the sixth mounting pin 3317 can be soldered to the fifth signal conductive piece 2051 and the sixth signal conductive piece 2052 of the circuit board 200 using SMT (Surface Mounted Technology).

[0208] The sixth ground plane 335 is mounted on the sixth insulating fixing block 333. The sixth ground plane 335 includes an eleventh mating part 3351 that contacts at least a portion of the sixth fixing part 3312 of the fifth grounding terminal G5, a twelfth mating part 3352 that contacts at least a portion of the sixth fixing part 3312 of the sixth grounding terminal G6, and a sixth raised part 3353 connecting the eleventh mating part 3351 and the twelfth mating part 3352. The sixth raised part 3353 does not contact the sixth fixing part 3312 of the fifth signal terminal S5 and the sixth fixing part 3312 of the sixth signal terminal S6 to prevent short circuits.

[0209] In the embodiment illustrated in this invention, by setting the fifth grounding plate 334 and the sixth grounding plate 335, all the fifth grounding terminals G5 and all the sixth grounding terminals G6 are connected in series, which helps to improve the grounding shielding effect and improve the quality of signal transmission.

[0210] In the embodiment illustrated in the present invention, there are two third grounding plates 43, each made of metal. Each third grounding plate 43 is generally U-shaped and includes a fifth mounting plate 431, a sixth mounting plate 432 opposite to the fifth mounting plate 431, a third connecting plate 433 connecting one side of the fifth mounting plate 431 and one side of the sixth mounting plate 432, and a third extension plate 434 extending downward and backward from the other side of the sixth mounting plate 432. The fifth mounting plate 431 has a third mounting positioning hole 4311 that mates with the third positioning post 1324. The third extension plate 434 is received in the third groove 1318 of the corresponding third conductive body 13, and the third extension plate 434 has a third mounting hole 4341 that mates with the third mounting protrusion 1319.

[0211] The third connecting plate 433 abuts against and at least partially shields the third front surface 230 of the third insulating block 23. The third connecting plate 433 is located at the front end of the second docking slot 102 along the first direction A1-A1; when the docking module is inserted, the tongue plate may first contact the third connecting plate 433, thereby facilitating the release of static electricity. The sixth mounting plate 432 is provided with a plurality of third grounding spring arms 435 arranged at intervals along the second direction A2-A2. Each set of third conductive terminals 331 has a third grounding spring arm 435 on both sides of the third contact arm 3313 to improve the shielding effect and improve the quality of signal transmission.

[0212] In one embodiment of the present invention, the third positioning post 1324 is fixed to the third mounting positioning hole 4311, thereby fixing the fifth mounting plate 431 to the sixth upper surface 1321 of the third protrusion 132. In one embodiment of the present invention, the size of the third mounting hole 4341 along the first direction A1-A1 can be slightly larger than the size of the third mounting protrusion 1319 along the first direction A1-A1, so that when the third grounding spring arm 435 is deformed by the first grounding contact piece of the docking module, the third extension plate 434 can move appropriately in the third groove 1318 along the first direction A1-A1.

[0213] In the embodiment illustrated in the present invention, the fourth module M4 includes a fourth conductive body 14, a fourth insulating block 24 fixed to the fourth conductive body 14, a fourth terminal module 34 mounted on the fourth conductive body 14, and a fourth grounding piece 44 fixed to the fourth conductive body 14.

[0214] In one embodiment of the present invention, the fourth conductive body 14 is a metal shell made of metallic material to further improve the shielding effect and enhance the quality of signal transmission. In another embodiment of the present invention, the fourth conductive body 14 may also be a composite shell formed by electroplating metallic material onto an insulating material; this composite shell can also improve the shielding effect and enhance the quality of signal transmission.

[0215] In one embodiment of the present invention, the fourth conductive body 14 includes a fourth base 141 and a fourth protrusion 142 extending forward from the fourth base 141. The fourth base 141 has a seventh upper surface 1411, a seventh lower surface 1412, and a fourth rear surface 1415. The bottom of the fourth base 141 also has at least one fourth groove 1418 near the fourth protrusion 142. In the embodiment illustrated in the present invention, there are two fourth grooves 1418. The fourth base 141 also has a plurality of fourth mounting protrusions 1419 protruding into each of the fourth grooves 1418.

[0216] The fourth protrusion 142 has an eighth upper surface 1421, an eighth lower surface 1422, and a plurality of fourth filling grooves 1423 extending downward along the third direction A3-A3 through the eighth lower surface 1422. The fourth filling grooves 1423 extend forward along the first direction A1-A1 through the fourth front end face 1420 of the fourth protrusion 142. The fourth protrusion 142 also includes a plurality of fourth positioning posts 1424 protruding downward along the third direction A3-A3 from the eighth lower surface 1422.

[0217] Please combine Figure 24As shown in the illustrated embodiment of the present invention, the fourth conductive body 14 further includes a plurality of fourth terminal module mounting slots 143 extending along the first direction A1-A1. Each fourth terminal module mounting slot 143 extends from the fourth base 141 to the fourth protrusion 142. The rear end of the fourth terminal module mounting slot 143 penetrates the fourth rear surface 1415 to form a fourth mounting opening 1416. The middle portion of the fourth terminal module mounting slot 143 is surrounded circumferentially by the wall portion of the fourth conductive body 14, and the front end of the fourth terminal module mounting slot 143 extends upward through the eighth upper surface 1421. Those skilled in the art will understand that by setting the middle portion of the fourth terminal module mounting slot 143 to be surrounded circumferentially by the wall portion of the fourth conductive body 14, on the one hand, the conductive terminals located in the fourth terminal module mounting slot 143 can be better shielded; on the other hand, adjacent fourth terminal module mounting slots 143 can be better separated, thereby reducing signal crosstalk. In addition, the fourth conductive body 14 also includes a fourth receiving slot 14a that extends along the first direction A1-A1 and passes forward through the fourth protrusion 142.

[0218] The plurality of fourth terminal module mounting slots 143 are arranged at intervals along the second direction A2-A2. The fourth conductive body 14 includes a plurality of fourth partition walls 144 arranged at intervals along the second direction A2-A2. Two adjacent fourth terminal module mounting slots 143 are separated by corresponding fourth partition walls 144 along the second direction A2-A2. In this configuration, each fourth terminal module mounting slot 143 is relatively independent, thereby reducing signal crosstalk and improving the quality of data transmission.

[0219] The fourth insulating block 24 is fixed in the fourth filling groove 1423. Preferably, in order to increase the bonding force between the fourth insulating block 24 and the fourth conductive body 14, the fourth insulating block 24 is formed in the fourth filling groove 1423. The fourth insulating block 24 is provided with a plurality of seventh slots 241 and a plurality of eighth slots 242, wherein adjacent seventh slots 241 and eighth slots 242 form a group and are connected to the corresponding fourth terminal module mounting groove 143. The fourth insulating block 24 is also provided with a fourth front surface 240, which is coplanar with the fourth front end surface 1420 of the fourth protrusion 142.

[0220] The fourth terminal module 34 includes a plurality of fourth conductive terminals 341, a seventh insulating fixing block 342 fixed to at least a portion of the plurality of fourth conductive terminals 341, an eighth insulating fixing block 343 fixed to at least a portion of the plurality of fourth conductive terminals 341, and a seventh grounding plate 344 mounted on the seventh insulating fixing block 342.

[0221] The plurality of fourth conductive terminals 341 include a seventh signal terminal S7, an eighth signal terminal S8, a seventh ground terminal G7 located on one side of the seventh signal terminal S7 and the eighth signal terminal S8, and an eighth ground terminal G8 located on the other side of the seventh signal terminal S7 and the eighth signal terminal S8. Preferably, the seventh signal terminal S7 and the eighth signal terminal S8 in each group of fourth conductive terminals 341 form a differential pair to improve signal transmission speed. The seventh ground terminal G7, the seventh signal terminal S7, the eighth signal terminal S8, and the eighth ground terminal G8 are arranged sequentially along the second direction A2-A2.

[0222] In the illustrated embodiment of the present invention, each fourth conductive terminal 341 includes a seventh fixing portion 3411 and an eighth fixing portion 3412 formed by bending the seventh fixing portion 3411. The seventh fixing portion 3411 extends along the first direction A1-A1, and the eighth fixing portion 3412 extends along the third direction A3-A3.

[0223] Furthermore, both the seventh signal terminal S7 and the eighth signal terminal S8 include a fourth contact arm 3413 protruding forward from the seventh insulating fixing block 342 along the first direction A1-A1. The fourth contact arm 3413 includes a fourth contact portion 3413a protruding into the fourth receiving slot 14a. Neither the seventh signal terminal S7 nor the eighth signal terminal S8 contacts the fourth conductive body 14 to prevent short circuits. The seventh grounding terminal G7 includes a seventh abutment portion 3414 protruding from the seventh insulating fixing block 342 along the first direction A1-A1; the eighth grounding terminal G8 includes an eighth abutment portion 3415 protruding from the seventh insulating fixing block 342. At least one of the seventh abutment portion 3414 and the eighth abutment portion 3415 contacts the fourth conductive body 14 to achieve grounding. In the embodiment illustrated in the present invention, both the seventh abutment portion 3414 and the eighth abutment portion 3415 contact the fourth conductive body 14 to achieve grounding. The seventh abutment portion 3414 is in elastic or non-elastic contact with the fourth conductive body 14; and / or the eighth abutment portion 3415 is in elastic or non-elastic contact with the fourth conductive body 14.

[0224] The seventh abutment portion 3414 is located at the free end of the seventh grounding terminal G7, which does not have a fourth contact arm 3413 protruding into the fourth receiving slot 14a. Similarly, the eighth abutment portion 3415 is located at the free end of the eighth grounding terminal G8, which does not have a fourth contact arm 3413 protruding into the fourth receiving slot 14a.

[0225] The seventh insulating fixing block 342 is at least partially fixed to the seventh fixing part 3411 of the seventh signal terminal S7, the seventh fixing part 3411 of the eighth signal terminal S8, the seventh fixing part 3411 of the seventh ground terminal G7, and the seventh fixing part 3411 of the eighth ground terminal G8. The fourth contact arm 3413 of the seventh signal terminal S7 is connected to the seventh fixing part 3411 of the seventh signal terminal S7; the fourth contact arm 3413 of the eighth signal terminal S8 is connected to the seventh fixing part 3411 of the eighth signal terminal S8. The seventh abutment part 3414 of the seventh ground terminal G7 is connected to the seventh fixing part 3411 of the seventh ground terminal G7; the eighth abutment part 3415 of the eighth ground terminal G8 is connected to the seventh fixing part 3411 of the eighth ground terminal G8.

[0226] In addition, the fourth terminal module 34 also includes a fourth insulating bonding block 346 fixed on the seventh signal terminal S7 and the eighth signal terminal S8. The fourth insulating bonding block 346 is installed into the fourth terminal module mounting groove 143 through the fourth mounting opening 1416.

[0227] In the embodiment illustrated in the present invention, the fourth insulating connecting block 346 and the seventh insulating fixing block 342 are spaced apart along the first direction A1-A1, and the fourth insulating connecting block 346 is closer to the fourth contact portion 3413a than the seventh insulating fixing block 342. Neither the seventh abutting portion 3414 nor the eighth abutting portion 3415 extends beyond the fourth insulating connecting block 346.

[0228] The seventh grounding plate 344 is mounted on the seventh insulating fixing block 342. The seventh grounding plate 344 includes a thirteenth mating part 3441 that contacts at least a portion of the seventh fixing part 3411 of the seventh grounding terminal G7, a fourteenth mating part 3442 that contacts at least a portion of the seventh fixing part 3411 of the eighth grounding terminal G8, and a seventh raised part 3443 connecting the thirteenth mating part 3441 and the fourteenth mating part 3442. The seventh raised part 3443 does not contact the seventh fixing part 3411 of the seventh signal terminal S7 and the seventh fixing part 3411 of the eighth signal terminal S8 to prevent short circuits.

[0229] In the embodiment illustrated in the present invention, the eighth insulating fixing block 343 is at least partially fixed to the eighth fixing part 3412 of the seventh signal terminal S7, the eighth fixing part 3412 of the eighth signal terminal S8, the eighth fixing part 3412 of the seventh ground terminal G7, and the eighth fixing part 3412 of the eighth ground terminal G8.

[0230] The seventh signal terminal S7 further includes a seventh mounting foot 3416 formed by bending the eighth fixing portion 3412 of the seventh signal terminal S7. The seventh mounting foot 3416 protrudes from the eighth insulating fixing block 343 and is configured to be mounted on the seventh signal conductive sheet 2061 of the circuit board 200. The eighth signal terminal S8 further includes an eighth mounting foot 3417 formed by bending the eighth fixing portion 3412 of the eighth signal terminal S8. The eighth mounting foot 3417 protrudes from the eighth insulating fixing block 343 and is configured to be mounted on the eighth signal conductive sheet 2062 of the circuit board 200. The seventh ground terminal G7 includes a seventh tail portion 3418 extending from the eighth fixing portion 3412 of the seventh ground terminal G7 and protruding from the eighth insulating fixing block 343. The eighth ground terminal G8 includes an eighth tail portion 3419 extending from the eighth fixing portion 3412 of the eighth ground terminal G8 and protruding from the eighth insulating fixing block 343. Neither the seventh tail portion 3418 nor the eighth tail portion 3419 is directly mounted on the circuit board 200.

[0231] In the illustrated embodiment of the present invention, the seventh mounting pin 3416 of the seventh signal terminal S7 is perpendicular to the eighth fixing portion 3412 of the seventh signal terminal S7; the eighth mounting pin 3417 of the eighth signal terminal S8 is perpendicular to the eighth fixing portion 3412 of the eighth signal terminal S8; the seventh tail portion 3418 of the seventh ground terminal G7 extends along the third direction A3-A3; and the eighth tail portion 3419 of the eighth ground terminal G8 extends along the third direction A3-A3. In the illustrated embodiment of the present invention, both the seventh mounting pin 3416 and the eighth mounting pin 3417 extend forward horizontally to contact the seventh signal conductive piece 2061 and the eighth signal conductive piece 2062 of the circuit board 200, respectively. Those skilled in the art will understand that in the illustrated embodiment of the present invention, the seventh mounting pin 3416 and the eighth mounting pin 3417 can be soldered to the seventh signal conductive piece 2061 and the eighth signal conductive piece 2062 of the circuit board 200 using SMT (Surface Mounted Technology).

[0232] In the embodiment illustrated in this invention, by setting the seventh grounding plate 344 to connect all the seventh grounding terminals G7 and all the eighth grounding terminals G8 in series, it is beneficial to improve the grounding shielding effect and improve the quality of signal transmission.

[0233] In the embodiment illustrated in the present invention, there are two fourth grounding plates 44, each made of metal. Each fourth grounding plate 44 is generally U-shaped and includes a seventh mounting plate 441, an eighth mounting plate 442 opposite to the seventh mounting plate 441, a fourth connecting plate 443 connecting one side of the seventh mounting plate 441 and one side of the eighth mounting plate 442, and a fourth extension plate 444 extending downward and backward from the other side of the eighth mounting plate 442. The seventh mounting plate 441 has a fourth mounting positioning hole 4411 that mates with the fourth positioning post 1424. The fourth extension plate 444 is received in the fourth groove 1418 of the corresponding fourth conductive body 14, and the fourth extension plate 444 has a fourth mounting hole 4441 that mates with the fourth mounting protrusion 1419.

[0234] The fourth connecting plate 443 abuts against and at least partially shields the fourth front surface 240 of the fourth insulating block 24. The fourth connecting plate 443 is located at the front end of the second docking slot 102 along the first direction A1-A1; when the docking module is inserted, the tongue plate may first contact the fourth connecting plate 443, thereby facilitating the release of static electricity. The eighth mounting plate 442 is provided with a plurality of fourth grounding spring arms 445 arranged at intervals along the second direction A2-A2. Each set of fourth conductive terminals 341 has a fourth grounding spring arm 445 on both sides of the fourth contact arm 3413 to improve the shielding effect and improve the quality of signal transmission.

[0235] In one embodiment of the present invention, the fourth positioning post 1424 is fixed to the fourth mounting positioning hole 4411, thereby fixing the seventh mounting plate 441 to the eighth upper surface 1421 of the fourth protrusion 142. In another embodiment of the present invention, the size of the fourth mounting hole 4441 along the first direction A1-A1 can be slightly larger than the size of the fourth mounting protrusion 1419 along the first direction A1-A1, so that when the fourth grounding spring arm 445 is deformed by the first grounding contact piece of the docking module, the fourth extension plate 444 can move appropriately in the fourth groove 1418 along the first direction A1-A1.

[0236] In one embodiment of the present invention, the third conductive body 13 and the fourth conductive body 14 are fixed together. For example, after the third conductive body 13 and the fourth conductive body 14 are assembled, they are then fixed together by welding or other means. The third receiving slot 13a and the fourth receiving slot 14a are interconnected to form the second docking slot 102.

[0237] In addition, please combine Figure 10 as well as Figures 15 to 17 As shown in the illustrated embodiment of the present invention, the electrical connector 100 further includes a first partition 71 located along the first direction A1-A1 between the second insulating fixing block 313 and the fourth insulating fixing block 323, and a second partition 72 located along the first direction A1-A1 between the fourth insulating fixing block 323 and the sixth insulating fixing block 333. The first partition 71 is held between the second insulating fixing block 313 and the fourth insulating fixing block 323 to maintain the distance between the first module M1 and the second module M2. The second partition 72 is held between the fourth insulating fixing block 323 and the sixth insulating fixing block 333 to maintain the distance between the second module M2 and the third module M3.

[0238] Please combine Figures 5 to 7 as well as Figures 10 to 14 As shown, in one embodiment of the present invention, the conductive mounting block 6 is a metal shell made of metal material to improve the shielding effect and enhance the quality of signal transmission. In another embodiment of the present invention, the conductive mounting block 6 may also be a composite shell formed by electroplating metal material onto an insulating material.

[0239] The conductive mounting block 6 includes a main body 61, a plurality of protrusions protruding from the main body 61 and located on one side (e.g., the upper side) of the main body 61, and a plurality of shielding protrusions protruding from the main body 61 and located on the other side (e.g., the lower side) of the main body 61. The main body 61 includes a first surface 611 (e.g., the upper surface) and a second surface 612 (e.g., the lower surface) opposite to the first surface 611.

[0240] The plurality of protrusions includes a first protrusion 621 that extends integrally with the main body 61 and protrudes from the first surface 611, and a second protrusion 622 that extends integrally with the main body 61 and protrudes from the first surface 611. The first protrusion 621 and the second protrusion 622 are arranged in a first row and aligned along the second direction A2-A2. The first protrusion 621 is provided with a first mounting hole 6211, in which the first tail portion 3118 of the first grounding terminal G1 is inserted and fixed. The second protrusion 622 is provided with a second mounting hole 6221, in which the second tail portion 3119 of the second grounding terminal G2 is inserted and fixed. The main body 61 also includes a first hollow hole 613 that penetrates the first surface 611 and the second surface 612. The first hollow hole 613 is located between the first protrusion 621 and the second protrusion 622 along the second direction A2-A2.

[0241] The plurality of shielding protrusions include a first shielding protrusion 631 and a second shielding protrusion 632 that extend integrally with the main body 61 and protrude downward along the third direction A3-A3 onto the second surface 612. A first mounting pin 3116 of the first signal terminal S1 and a second mounting pin 3117 of the second signal terminal S2 pass through the first perforation 613 and are located between the first shielding protrusion 631 and the second shielding protrusion 632. The first shielding protrusion 631 is configured to be mounted on a first grounding conductive sheet 2071 of the circuit board 200, and the second shielding protrusion 632 is configured to be mounted on a second grounding conductive sheet 2072 of the circuit board 200. In one embodiment of the present invention, the first shielding protrusion 631 is welded and fixed to the first grounding conductive sheet 2071 of the circuit board 200, and the second shielding protrusion 632 is welded and fixed to the second grounding conductive sheet 2072 of the circuit board 200.

[0242] The plurality of protrusions includes a third protrusion 623 that extends integrally with the main body 61 and protrudes from the first surface 611, and a fourth protrusion 624 that extends integrally with the main body 61 and protrudes from the first surface 611. The third protrusion 623 and the fourth protrusion 624 are arranged in a second row and aligned along the second direction A2-A2. The third protrusion 623 is provided with a third mounting hole 6231, in which the third tail portion 3218 of the third grounding terminal G3 is inserted and fixed. The fourth protrusion 624 is provided with a fourth mounting hole 6241, in which the fourth tail portion 3219 of the fourth grounding terminal G4 is inserted and fixed. The main body 61 also includes a second hollow hole 614 penetrating the first surface 611 and the second surface 612, located between the third protrusion 623 and the fourth protrusion 624 along the second direction A2-A2. The third mounting pin 3216 of the third signal terminal S3 and the fourth mounting pin 3217 of the fourth signal terminal S4 pass through the second hollow hole 614 to be located between the first shielding protrusion 631 and the second shielding protrusion 632.

[0243] The plurality of protrusions includes a fifth protrusion 625 that extends integrally with the main body 61 and protrudes from the first surface 611, and a sixth protrusion 626 that extends integrally with the main body 61 and protrudes from the first surface 611. The fifth protrusion 625 and the sixth protrusion 626 are arranged in the third row and aligned along the second direction A2-A2. The fifth protrusion 625 is provided with a fifth mounting hole 6251, in which the fifth tail portion 3318 of the fifth grounding terminal G5 is inserted and fixed. The sixth protrusion 626 is provided with a sixth mounting hole 6261, in which the sixth tail portion 3319 of the sixth grounding terminal G6 is inserted and fixed. The main body 61 also includes a third hollow hole 615 penetrating the first surface 611 and the second surface 612, which is located between the fifth protrusion 625 and the sixth protrusion 626 along the second direction A2-A2.

[0244] The plurality of shielding protrusions include a third shielding protrusion 633 and a fourth shielding protrusion 634 that extend integrally with the main body 61 and protrude downward along the third direction A3-A3 from the second surface 612. The fifth mounting pin 3316 of the fifth signal terminal S5 and the sixth mounting pin 3317 of the sixth signal terminal S6 pass through the third cutout hole 615 and are located between the third shielding protrusion 633 and the fourth shielding protrusion 634. The third shielding protrusion 633 is configured to be mounted on the third grounding conductive sheet 2081 of the circuit board 200, and the fourth shielding protrusion 634 is configured to be mounted on the fourth grounding conductive sheet 2082 of the circuit board 200. In one embodiment of the present invention, the third shielding protrusion 633 is welded and fixed to the third grounding conductive sheet 2081 of the circuit board 200, and the fourth shielding protrusion 634 is welded and fixed to the fourth grounding conductive sheet 2082 of the circuit board 200.

[0245] The plurality of protrusions includes a seventh protrusion 627 that extends integrally with the main body 61 and protrudes from the first surface 611, and an eighth protrusion 628 that extends integrally with the main body 61 and protrudes from the first surface 611. The seventh protrusion 627 and the eighth protrusion 628 are arranged in the fourth row and aligned along the second direction A2-A2. The seventh protrusion 627 is provided with a seventh mounting hole 6271, in which the seventh tail 3418 of the seventh grounding terminal G7 is inserted and fixed. The eighth protrusion 628 is provided with an eighth mounting hole 6281, in which the eighth tail 3419 of the eighth grounding terminal G8 is inserted and fixed. The main body 61 also includes a fourth hollow hole 616 that penetrates the first surface 611 and the second surface 612. The fourth hollow hole 616 is located between the seventh protrusion 627 and the eighth protrusion 628 along the second direction A2-A2. The seventh mounting pin 3416 of the seventh signal terminal S7 and the eighth mounting pin 3417 of the eighth signal terminal S8 pass through the fourth hollow hole 616 to be located between the third shielding protrusion 633 and the fourth shielding protrusion 634.

[0246] Compared to existing technologies, the first module M1 of this invention is provided with a first conductive body 11. The first contact arms 3113 of the first signal terminal S1 and the second signal terminal S2 are mostly located within the first conductive body 11 along the first direction A1-A1. The first conductive body 11 can provide a better shielding effect for the first contact arms 3113 of the first signal terminal S1 and the second signal terminal S2. In addition, by providing first grounding spring arms 415 on both sides of the first contact arms 3113 of the first signal terminal S1 and the second signal terminal S2, the shielding effect of the docking area is further improved.

[0247] The present invention provides a first ground plane 314 and a second ground plane 315, which are respectively in contact with the first ground terminal G1 and the second ground terminal G2. This allows for better shielding along the length of the first fixing portion 3111 of the first signal terminal S1 and the second signal terminal S2, as well as along the length of the second fixing portion 3112 of the first signal terminal S1 and the second signal terminal S2, thereby improving the shielding effect of these portions.

[0248] The present invention improves the shielding effect on the first mounting pin 3116 of the first signal terminal S1 and the second mounting pin 3117 of the second signal terminal S2 by setting the conductive mounting block 6. The integral conductive mounting block 6 in the present invention further enhances the shielding effect.

[0249] Furthermore, by bringing the first contact portion 3114 of the first grounding terminal G1 and the second contact portion 3115 of the second grounding terminal G2 into contact with the first conductive body 11, and by connecting the first tail portion 3118 of the first grounding terminal G1 and the second tail portion 3119 of the second grounding terminal G2 to the conductive mounting block 6, the present invention achieves good shielding along the length of both the first signal terminal S1 and the second signal terminal S2, thereby improving the quality of signal transmission.

[0250] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present invention should be based on those skilled in the art. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. An electrical connector, characterized in that, include: A first conductive body, the first conductive body having a first receiving slot extending along a first direction; as well as A first terminal module is at least partially disposed on the first conductive body. The first terminal module includes a plurality of first conductive terminals and a first insulating fixing block fixed at least on a portion of the plurality of first conductive terminals. The plurality of first conductive terminals include a first signal terminal, a second signal terminal, a first ground terminal located on one side of the first signal terminal and the second signal terminal, and a second ground terminal located on the other side of the first signal terminal and the second signal terminal. Both the first signal terminal and the second signal terminal include a first contact arm protruding from the first insulating fixing block along the first direction. The first contact arm includes a first contact portion protruding into the first receiving slot. Neither the first signal terminal nor the second signal terminal contacts the first conductive body. The first ground terminal includes a first abutting portion protruding from the first insulating fixing block. The second ground terminal includes a second abutting portion protruding from the first insulating fixing block. At least one of the first abutting portion and the second abutting portion contacts the first conductive body.

2. The electrical connector as described in claim 1, characterized in that: The first abutting portion makes elastic or non-elastic contact with the first conductive body; and / or The second contact portion makes elastic or non-elastic contact with the first conductive body.

3. The electrical connector as described in claim 1, characterized in that: The first abutting portion is located at the free end of the first grounding terminal, and the first grounding terminal is not provided with a first contact arm protruding into the first receiving slot; The second abutment is located at the free end of the second grounding terminal, and the second grounding terminal does not have a first contact arm protruding into the first receiving slot.

4. The electrical connector as described in claim 1, characterized in that: Each first conductive terminal includes a first fixing part, and the first insulating fixing block is at least partially fixed on the first fixing part of the first signal terminal, the first fixing part of the second signal terminal, the first fixing part of the first grounding terminal, and the first fixing part of the second grounding terminal; The first contact arm of the first signal terminal is connected to the first fixing part of the first signal terminal; The first contact arm of the second signal terminal is connected to the first fixing part of the second signal terminal; The first abutting portion of the first grounding terminal is connected to the first fixing portion of the first grounding terminal; The second abutting portion of the second grounding terminal is connected to the first fixing portion of the second grounding terminal; The first terminal module further includes a first insulating bonding block fixed on the first signal terminal and the second signal terminal, and the first insulating bonding block is at least partially installed in the first conductive body.

5. The electrical connector as described in claim 4, characterized in that: The first insulating connecting block and the first insulating fixing block are spaced apart along the first direction, and the first insulating connecting block is closer to the first contact portion than the first insulating fixing block; Neither the first abutting portion nor the second abutting portion extends beyond the first insulating bonding block.

6. The electrical connector as described in claim 4, characterized in that: The first terminal module further includes a first ground plane mounted on the first insulating fixing block. The first ground plane includes a first mating portion that contacts at least a portion of the first fixing portion of the first grounding terminal, a second mating portion that contacts at least a portion of the first fixing portion of the second grounding terminal, and a first raised portion that connects the first mating portion and the second mating portion. The first raised portion does not contact the first fixing portion of the first signal terminal or the first fixing portion of the second signal terminal.

7. The electrical connector as claimed in claim 4, characterized in that: Each first conductive terminal includes a second fixing portion formed by bending from the first fixing portion; The first terminal module further includes a second insulating fixing block that is at least partially fixed to the second fixing part of the first signal terminal, the second fixing part of the second signal terminal, the second fixing part of the first ground terminal, and the second fixing part of the second ground terminal; The first signal terminal includes a first mounting foot formed by bending a second fixing portion of the first signal terminal. The first mounting foot protrudes from the second insulating fixing block and is configured to be mounted on a first signal conductive sheet of the circuit board. The second signal terminal includes a second mounting foot formed by bending a second fixing portion of the second signal terminal. The second mounting foot protrudes from the second insulating fixing block and is configured to be mounted on the second signal conductive sheet of the circuit board. The first grounding terminal includes a first tail portion that extends from the second fixing portion of the first grounding terminal and protrudes from the second insulating fixing block; The second grounding terminal includes a second tail portion that extends from the second fixing portion of the second grounding terminal and protrudes from the second insulating fixing block; The first tail portion and the second tail portion are not directly mounted on the circuit board.

8. The electrical connector as claimed in claim 7, characterized in that: The first grounding terminal, the first signal terminal, the second signal terminal, and the second grounding terminal are arranged sequentially along the second direction; The second fixing part extends along a third direction, and the first direction, the second direction, and the third direction are perpendicular to each other; The first mounting pin of the first signal terminal is perpendicular to the second fixing portion of the first signal terminal; the second mounting pin of the second signal terminal is perpendicular to the second fixing portion of the second signal terminal; the first tail of the first ground terminal extends along the third direction; the second tail of the second ground terminal extends along the third direction.

9. The electrical connector as claimed in claim 7, characterized in that: The electrical connector further includes a conductive mounting block, which includes a first mounting hole, a second mounting hole, a first hollow hole, a first shielding protrusion, and a second shielding protrusion, wherein the first hollow hole is located between the first mounting hole and the second mounting hole; The first tail of the first grounding terminal is inserted into the first mounting hole, and the second tail of the second grounding terminal is inserted into the second mounting hole. The first mounting pin of the first signal terminal and the second mounting pin of the second signal terminal pass through the first hollow hole and are located between the first shielding protrusion and the second shielding protrusion. The first shielding protrusion is configured to be mounted on the first grounding conductive sheet of the circuit board, and the second shielding protrusion is configured to be mounted on the second grounding conductive sheet of the circuit board.

10. The electrical connector as claimed in claim 9, characterized in that: The conductive mounting block includes a main body, which includes a first surface and a second surface opposite to the first surface; The conductive mounting block includes a first protrusion that extends integrally with the main body and protrudes from the first surface, and a second protrusion that extends integrally with the main body and protrudes from the first surface. The first mounting hole is disposed on the first protrusion, and the second mounting hole is disposed on the second protrusion. Both the first shielding ridge and the second shielding ridge extend integrally with the main body and protrude from the second surface; The first perforation extends through the first surface and the second surface.

11. The electrical connector as claimed in claim 7, characterized in that: The first terminal module further includes a second grounding plate mounted on the second insulating fixing block. The second grounding plate includes a third mating portion that contacts at least a portion of the second fixing portion of the first grounding terminal, a fourth mating portion that contacts at least a portion of the second fixing portion of the second grounding terminal, and a second raised portion connecting the third mating portion and the fourth mating portion. The second raised portion does not contact the second fixing portion of the first signal terminal or the second fixing portion of the second signal terminal.

12. The electrical connector as claimed in claim 1, characterized in that: The first terminal module includes a first insulating block fixed to the first conductive body. The first insulating block includes a first slot and a second slot, wherein the first contact arm of the first signal terminal extends at least partially into the first slot, and the first contact arm of the second signal terminal extends at least partially into the second slot.

13. The electrical connector as claimed in claim 1, characterized in that: The electrical connector also includes: A second conductive body, the second conductive body having a second receiving slot extending along the first direction; and A second terminal module, at least partially disposed on the second conductive body, includes a plurality of second conductive terminals and a third insulating fixing block fixed at least on a portion of the plurality of second conductive terminals; the plurality of second conductive terminals include a third signal terminal, a fourth signal terminal, a third ground terminal located on one side of the third signal terminal and the fourth signal terminal, and a fourth ground terminal located on the other side of the third signal terminal and the fourth signal terminal; both the third signal terminal and the fourth signal terminal include a second contact arm protruding from the third insulating fixing block along the first direction, the second contact arm including a second contact portion protruding into the second receiving slot, and neither the third signal terminal nor the fourth signal terminal contacts the second conductive body; the third ground terminal includes a third abutment portion protruding from the third insulating fixing block along the first direction; the fourth ground terminal includes a fourth abutment portion protruding from the third insulating fixing block; both the third abutment portion and the fourth abutment portion contact the second conductive body; The first conductive body and the second conductive body are fixed together to form a docking slot, the docking slot being configured to at least partially accommodate a docking module, the docking slot including the first accommodating slot and the second accommodating slot.

14. The electrical connector as claimed in claim 13, characterized in that: The third abutment portion makes elastic or non-elastic contact with the second conductive body; and / or The fourth contact portion makes elastic or non-elastic contact with the second conductive body.

15. The electrical connector as claimed in claim 13, characterized in that: The third abutment portion is located at the free end of the third grounding terminal, and the third grounding terminal is not provided with a second contact arm protruding into the second receiving slot; The fourth abutment is located at the free end of the fourth grounding terminal, and the fourth grounding terminal does not have a second contact arm protruding into the second receiving slot.

16. The electrical connector as claimed in claim 13, characterized in that: Each second conductive terminal includes a third fixing part, and the third insulating fixing block is at least partially fixed to the third fixing part of the third signal terminal, the third fixing part of the fourth signal terminal, the third fixing part of the third grounding terminal, and the third fixing part of the fourth grounding terminal; The second contact arm of the third signal terminal is connected to the third fixing part of the third signal terminal; The second contact arm of the fourth signal terminal is connected to the third fixing part of the fourth signal terminal; The third abutting part of the third grounding terminal is connected to the third fixing part of the third grounding terminal; The fourth abutting part of the fourth grounding terminal is connected to the third fixing part of the fourth grounding terminal; The second terminal module further includes a second insulating bonding block fixed on the third signal terminal and the fourth signal terminal, the second insulating bonding block being at least partially installed in the second conductive body.

17. The electrical connector as claimed in claim 16, characterized in that: The second insulating connecting block and the third insulating fixing block are spaced apart along the first direction, and the second insulating connecting block is closer to the second contact portion than the third insulating fixing block; Neither the third abutment nor the fourth abutment extends beyond the second insulating bonding block.

18. The electrical connector as claimed in claim 16, characterized in that: The second terminal module further includes a third grounding plate mounted on the third insulating fixing block. The third grounding plate includes a fifth mating portion that contacts at least a portion of the third fixing portion of the third grounding terminal, a sixth mating portion that contacts at least a portion of the third fixing portion of the fourth grounding terminal, and a third raised portion connecting the fifth mating portion and the sixth mating portion. The third raised portion does not contact the third fixing portion of the third signal terminal or the third fixing portion of the fourth signal terminal.

19. A connector assembly, characterized in that, include: An electrical connector, wherein the electrical connector is the electrical connector as described in any one of claims 1 to 18; as well as A circuit board includes a plurality of first conductive sheets, a first ground conductive sheet, and a second ground conductive sheet; the plurality of first conductive sheets include a first signal conductive sheet and a second signal conductive sheet, the first signal conductive sheet and the second signal conductive sheet forming a first signal conductive sheet group; the first ground conductive sheet and the second ground conductive sheet are respectively located on both sides of the first signal conductive sheet group; the length of the first ground conductive sheet along the first direction is greater than the length of the first signal conductive sheet along the first direction, and also greater than the length of the second signal conductive sheet along the first direction; the length of the second ground conductive sheet along the first direction is greater than the length of the first signal conductive sheet along the first direction, and also greater than the length of the second signal conductive sheet along the first direction. The first signal terminal is electrically in contact with the first signal conductive sheet, the second signal terminal is electrically in contact with the second signal conductive sheet, the first ground terminal is electrically connected to the first ground conductive sheet, and the second ground terminal is electrically connected to the second ground conductive sheet.

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