Electric connector

Abstract

An electric connector comprises a mounting shell and a first terminal module. The first terminal module comprises a first signal terminal, a second signal terminal, a first grounding terminal and a second grounding terminal. Each first conductive terminal comprises a first contact elastic arm, and the first contact elastic arm is provided with a first arc-shaped end part. The height of the first arc-shaped end portion of the first grounding terminal is larger than the height of the first arc-shaped end portion of the first signal terminal, and the height of the first arc-shaped end portion of the first grounding terminal is larger than the height of the first arc-shaped end portion of the second signal terminal. The height of the first arc-shaped end portion of the second grounding terminal is larger than the height of the first arc-shaped end portion of the first signal terminal, and the height of the first arc-shaped end portion of the second grounding terminal is larger than the height of the first arc-shaped end portion of the second signal terminal. Through the arrangement, the signal transmission quality can be improved.

Description

Technical Field

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

[0002] Electrical connectors in related technologies typically include a mounting housing and a plurality of terminal modules mounted on the mounting housing. The terminal modules include a plurality of conductive terminals, including a first signal terminal, a second signal terminal, a first ground terminal located on one side of the first and second signal terminals, and a second ground terminal located on the other side of the first and second signal terminals. Each conductive terminal includes a contact spring arm with an arc-shaped end, the arc-shaped end having a contact portion that protrudes into a receiving slot in the mounting housing and is configured to contact a mating module.

[0003] However, how to optimize the design of the contact portion of the conductive terminal to improve the quality of signal transmission is a technical problem faced by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide an electrical connector that has an improved shielding effect at the first contact portion of the first conductive terminal.

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

[0006] Mounting housing, the mounting housing having a receiving slot extending along a first direction, the receiving slot being configured to receive a docking module; and

[0007] A first terminal module is directly or indirectly disposed on the mounting housing. The first terminal module includes a plurality of first conductive terminals, including 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. The first ground terminal, the first signal terminal, the second signal terminal, and the second ground terminal are arranged sequentially along a second direction. Each first conductive terminal includes a first contact spring arm, the first contact spring arm having a first arc-shaped end, the first arc-shaped end having a first contact portion protruding into the receiving slot and configured to contact the docking module.

[0008] The dimension of the first arc-shaped end of the first grounding terminal along a third direction is greater than the dimension of the first arc-shaped end of the first signal terminal along the third direction; the dimension of the first arc-shaped end of the first grounding terminal along the third direction is greater than the dimension of the first arc-shaped end of the second signal terminal along the third direction; the dimension of the first arc-shaped end of the second grounding terminal along the third direction is greater than the dimension of the first arc-shaped end of the first signal terminal along the third direction; the dimension of the first arc-shaped end of the second grounding terminal along the third direction is greater than the dimension of the first arc-shaped end of the second signal terminal along the third direction.

[0009] The first direction, the second direction, and the third direction are all perpendicular to each other.

[0010] As a further improved technical solution of the present invention, the dimension of the first contact spring arm of the first grounding terminal along the third direction is greater than the dimension of the first contact spring arm of the first signal terminal along the third direction, the dimension of the first contact spring arm of the first grounding terminal along the third direction is greater than the dimension of the first contact spring arm of the second signal terminal along the third direction, the dimension of the first contact spring arm of the second grounding terminal along the third direction is greater than the dimension of the first contact spring arm of the first signal terminal along the third direction, and the dimension of the first contact spring arm of the second grounding terminal along the third direction is greater than the dimension of the first contact spring arm of the second signal terminal along the third direction.

[0011] As a further improvement of the present invention, both the first grounding terminal and the second grounding terminal are manufactured by blanking; both the first signal terminal and the second signal terminal are manufactured by stamping.

[0012] As a further improvement of the present invention, the first contact portion of the first signal terminal is flush with the first contact portion of the second signal terminal; the first contact portion of the first grounding terminal is flush with the first contact portion of the second grounding terminal.

[0013] The first contact portion of the first signal terminal and the first contact portion of the second signal terminal protrude beyond the first contact portion of the first ground terminal and the first contact portion of the second ground terminal along the third direction, such that the first contact portion of the first signal terminal and the first contact portion of the second signal terminal both protrude into the receiving slot more than the first contact portion of the first ground terminal and the first contact portion of the second ground terminal.

[0014] As a further improvement of the present invention, each first conductive terminal includes a first connecting portion;

[0015] Both the first connection portion of the first grounding terminal and the first connection portion of the second grounding terminal include a first fixing portion and at least one first protrusion protruding from the first fixing portion;

[0016] The electrical connector includes a first shield, the first shield having a first base plate portion that shields the first connection portion, the first shield not contacting the first signal terminal and the second signal terminal, the first base plate portion having at least one first mounting hole, and the first protrusion engaging with the first mounting hole.

[0017] As a further improvement of the present invention, each first conductive terminal includes a first inclined portion connected to the first connecting portion;

[0018] Both the first inclined portion of the first grounding terminal and the first inclined portion of the second grounding terminal include a second fixing portion and at least one first protrusion protruding from the second fixing portion;

[0019] The first shielding plate has a first shielding portion that shields the first inclined portion, and the first shielding portion has at least one first fixing hole, and the first protrusion cooperates with the first fixing hole.

[0020] As a further improvement of the present invention, each first conductive terminal includes a second inclined portion connected between the first contact spring arm and the first connecting portion;

[0021] The first shielding sheet has a first extension and a second extension connected to the first substrate portion, wherein the first extension contacts the second inclined portion of the first grounding terminal, and the second extension contacts the second inclined portion of the second grounding terminal.

[0022] As a further improved technical solution of the present invention, the first shielding sheet is further provided with a first crossbeam connecting the first extension and the second extension, wherein both the first extension and the second extension extend beyond the first crossbeam.

[0023] As a further improvement of the present invention, each first conductive terminal includes a first tail portion, which is configured to be mounted on a circuit board.

[0024] The dimension of the first tail portion of the first grounding terminal along the third direction is greater than the dimension of the first tail portion of the first signal terminal along the third direction. The dimension of the first tail portion of the first grounding terminal along the third direction is greater than the dimension of the first tail portion of the second signal terminal along the third direction. The dimension of the first tail portion of the second grounding terminal along the third direction is greater than the dimension of the first tail portion of the first signal terminal along the third direction. The dimension of the first tail portion of the second grounding terminal along the third direction is greater than the dimension of the first tail portion of the second signal terminal along the third direction.

[0025] As a further improved technical solution of the present invention, the first terminal module includes a first insulating block, the first conductive terminal is fixed to the first insulating block, and the first contact spring arm extends out of the first insulating block.

[0026] The electrical connector further includes a first retaining block fixed to the first contact spring arm of the first signal terminal and the first contact spring arm of the second signal terminal. The first retaining block has a first base portion and a first support portion extending from the first base portion. The first contact spring arm of the first signal terminal and the first contact spring arm of the second signal terminal are at least partially fixed to the first base portion. The first contact spring arm of the first signal terminal and the first contact spring arm of the second signal terminal are at least partially exposed to the first support portion and supported by the first support portion.

[0027] As a further improved technical solution of the present invention, the first holding block includes a first positioning block and a second positioning block extending from the first support portion along the third direction, wherein the first contact spring arm of the first signal terminal and the first contact spring arm of the second signal terminal are constrained between the first positioning block and the second positioning block, the first positioning block abuts against the first contact spring arm of the first signal terminal to limit the first contact spring arm of the first signal terminal, and the second positioning block abuts against the first contact spring arm of the second signal terminal to limit the first contact spring arm of the second signal terminal.

[0028] As a further improved technical solution of the present invention, the first terminal module further includes a first grounding plate fixed on the first retaining block. The first grounding plate is provided with a first opening that engages with the first retaining block, and the first grounding plate is in contact with the first grounding terminal and the second grounding terminal.

[0029] As a further improved technical solution of the present invention, the first terminal module includes a first insulating block, the first conductive terminal is fixed to the first insulating block, and the first contact spring arm extends out of the first insulating block.

[0030] The first terminal module further includes a plurality of second conductive terminals, the plurality of second conductive terminals including 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; the third ground terminal, the third signal terminal, the fourth signal terminal, and the fourth ground terminal are arranged sequentially along the second direction; each second conductive terminal includes a second contact spring arm, the second contact spring arm having a second arc-shaped end, the second arc-shaped end having a second contact portion protruding into the receiving slot and configured to contact the docking module; the second conductive terminal is fixed to the first insulating block, and the second contact spring arm extends out of the first insulating block;

[0031] The first contact portion of the first conductive terminal is arranged in a first row along the second direction, and the second contact portion of the second conductive terminal is arranged in a second row along the second direction. The first row and the second row are spaced apart along the first direction.

[0032] As a further improvement of the present invention, the third grounding terminal and the fourth grounding terminal are both manufactured by blanking; the third signal terminal and the fourth signal terminal are both manufactured by stamping.

[0033] As a further improvement of the present invention, the second contact portion of the third signal terminal is flush with the second contact portion of the fourth signal terminal; the second contact portion of the third grounding terminal is flush with the second contact portion of the fourth grounding terminal;

[0034] The second contact portion of the third signal terminal and the second contact portion of the fourth signal terminal protrude beyond the second contact portion of the third ground terminal and the second contact portion of the fourth ground terminal along the third direction, such that the second contact portion of the third signal terminal and the second contact portion of the fourth signal terminal both protrude further into the receiving slot than the second contact portion of the third ground terminal and the second contact portion of the fourth ground terminal.

[0035] As a further improvement of the present invention, each second conductive terminal includes a third inclined portion;

[0036] The third inclined portion of the third grounding terminal and the third inclined portion of the fourth grounding terminal both include a second fixing portion and at least one second protrusion protruding from the second fixing portion;

[0037] The electrical connector includes a second shield, the second shield having a second base plate portion that covers the third inclined portion, the second shield not contacting the third signal terminal and the fourth signal terminal, the second base plate portion having at least one second mounting hole, and the second protrusion engaging with the second mounting hole.

[0038] As a further improved technical solution of the present invention, the electrical connector further includes a second retaining block fixed on the second contact spring arm of the third signal terminal and the second contact spring arm of the fourth signal terminal, wherein the second contact spring arm of the third signal terminal and the second contact spring arm of the fourth signal terminal extend out of the second retaining block;

[0039] The first terminal module further includes a second grounding plate fixed on the second retaining block. The second grounding plate has a second opening that engages with the second retaining block. The second grounding plate is in contact with the third grounding terminal and the fourth grounding terminal.

[0040] Compared to existing technologies, in the electrical connector of the present invention, the dimension of the first arc-shaped end of the first grounding terminal along a third direction is greater than the dimension of the first arc-shaped end of the first signal terminal along the third direction, the dimension of the first arc-shaped end of the first grounding terminal along the third direction is greater than the dimension of the first arc-shaped end of the second signal terminal along the third direction, the dimension of the first arc-shaped end of the second grounding terminal along the third direction is greater than the dimension of the first arc-shaped end of the first signal terminal along the third direction, and the dimension of the first arc-shaped end of the second grounding terminal along the third direction is greater than the dimension of the first arc-shaped end of the second signal terminal along the third direction. This configuration provides relatively high first arc-shaped ends of the first grounding terminal and the second grounding terminal on both sides of the first arc-shaped end of the first signal terminal and the first arc-shaped end of the second signal terminal, thereby improving the quality of signal transmission. Attached Figure Description

[0041] Figure 1 This is a three-dimensional schematic diagram of the connector module of the present invention in one embodiment;

[0042] Figure 2 yes Figure 1 Partial exploded 3D diagram;

[0043] Figure 3 yes Figure 2 Another perspective of a partially exploded 3D view;

[0044] Figure 4 This is a partial exploded perspective view of the electrical connector of the present invention, wherein the mounting housing is separated.

[0045] Figure 5 yes Figure 4 Another perspective of a partially exploded 3D view;

[0046] Figure 6 yes Figure 5 A magnified view of part B circled in the middle;

[0047] Figure 7 yes Figure 4 Partial exploded perspective view of the first terminal module and the second terminal module;

[0048] Figure 8 yes Figure 7 Another perspective of a partially exploded 3D view;

[0049] Figure 9 yes Figure 7 The right view;

[0050] Figure 10 yes Figure 7 Rear view;

[0051] Figure 11 yes Figure 7 Partial exploded perspective view of the first terminal module;

[0052] Figure 12 yes Figure 11 Another perspective of a partially exploded 3D view;

[0053] Figure 13 yes Figure 7 Partial exploded perspective view of the second terminal module;

[0054] Figure 14 yes Figure 13 Another perspective of a partially exploded 3D view;

[0055] Figure 15 It is to remove Figure 7 A three-dimensional schematic diagram of the portion following the first and second insulating blocks;

[0056] Figure 16 yes Figure 15 A partial 3D diagram from another angle;

[0057] Figure 17 yes Figure 11 Further exploded view;

[0058] Figure 18 yes Figure 17 Another perspective of the exploded 3D view;

[0059] Figure 19 yes Figure 13 Further exploded view;

[0060] Figure 20 yes Figure 19 Another perspective of the exploded 3D view;

[0061] Figure 21 yes Figure 17 A three-dimensional schematic diagram of a first conductive terminal module;

[0062] Figure 22 yes Figure 21 3D exploded view;

[0063] Figure 23 yes Figure 17 A three-dimensional schematic diagram of a second conductive terminal module;

[0064] Figure 24 yes Figure 23 3D exploded view;

[0065] Figure 25 yes Figure 19 A three-dimensional schematic diagram of a third conductive terminal module;

[0066] Figure 26 yes Figure 19 A three-dimensional schematic diagram of a fourth conductive terminal module;

[0067] Figure 27 yes Figure 21 Top view;

[0068] Figure 28 yes Figure 17 A three-dimensional schematic diagram of a first grounding terminal, a first signal terminal, a second signal terminal, and a second grounding terminal;

[0069] Figure 29 yes Figure 28 A magnified view of the circled area C;

[0070] Figure 30 yes Figure 29 A right view of a second signal terminal, a first signal terminal, and a first ground terminal, as circled in the middle.

[0071] Figure 31 yes Figure 29 A left view of a first signal terminal, a second signal terminal, and a second ground terminal, as circled in the middle.

[0072] Figure 32 yes Figure 29 A right view of the circled portion when a first grounding terminal, a first signal terminal, a second signal terminal, and a second grounding terminal are separated from each other;

[0073] Figure 33It is along Figure 1 A cross-sectional view of the DD line, showing that the mating module is not inserted into the electrical connector. Detailed Implementation

[0074] 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.

[0075] 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.

[0076] 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.

[0077] Please refer to Figures 1 to 3 As shown, the present invention discloses a connector assembly including a circuit board 300, an electrical connector 100 mounted on the circuit board 300, and a mating module 200 configured to be inserted into the electrical connector 100.

[0078] Please combine Figure 2As shown in the illustrated embodiment of the present invention, the circuit board 300 is provided with a plurality of conductive sheets exposed on one of its surfaces. The conductive sheets include a first conductive sheet 301 arranged in a first row, a second conductive sheet 302 arranged in a second row, a third conductive sheet 303 arranged in a third row, and a fourth conductive sheet 304 arranged in a fourth row. In the illustrated embodiment of the present invention, the first conductive sheet 301, the second conductive sheet 302, the third conductive sheet 303, and the fourth conductive sheet 304 are arranged at intervals along a first direction A1-A1 (e.g., the front-to-back direction).

[0079] The docking module 200 is provided with a tongue plate 201, and the tongue plate 201 is provided with a plurality of conductive contact pieces 202. In the embodiment illustrated in the present invention, the conductive contact pieces 202 are exposed on two oppositely arranged surfaces of the tongue plate 201.

[0080] Please combine Figures 2 to 33 As shown in the illustrated embodiment of the present invention, the electrical connector 100 includes a mounting housing 1, a first terminal module M1 directly or indirectly disposed on the mounting housing 1, and a second terminal module M2 directly or indirectly disposed on the mounting housing 1. In the illustrated embodiment of the present invention, both the first terminal module M1 and the second terminal module M2 are directly mounted on the mounting housing 1.

[0081] In one embodiment of the present invention, the mounting housing 1 is made of an insulating material. The mounting housing 1 has a mating surface 11, a receiving slot 110 extending through the mating surface 11 along a first direction A1-A1, an assembly surface 12 opposite to the mating surface 11, and a mounting space 120 extending through the assembly surface 12 along the first direction A1-A1. The receiving slot 110 is configured to receive the mating module 200.

[0082] In the embodiment illustrated in the present invention, the first terminal module M1 includes a first insulating block 40, a plurality of first conductive terminals 41, a plurality of second conductive terminals 42, a first shielding plate 43, a second shielding plate 44, a first grounding plate 45, and a second grounding plate 46.

[0083] The first insulating block 40 includes a body portion 401, a first inclined wall 402 extending obliquely from the first body portion 401, a second inclined wall 403 extending obliquely from the first body portion 401 and parallel to the first inclined wall 402, and a reinforcing wall 404 connecting the first inclined wall 402 and the second inclined wall 403.

[0084] The plurality of first conductive terminals 41 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. 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 a second direction A2-A2 (e.g., a left-right direction). In one embodiment of the present invention, the first signal terminal S1 and the second signal terminal S2 form a first differential pair DP1 to improve the signal transmission rate.

[0085] Each first conductive terminal 41 includes a first contact spring arm 411, a first connecting portion 412, a first inclined portion 413 connected to the first connecting portion 412, a second inclined portion 414 connected between the first contact spring arm 411 and the first connecting portion 412, and a first tail portion 415 extending from the first inclined portion 413. The first contact spring arm 411 has a first arc-shaped end 4111, and the first arc-shaped end 4111 has a first contact portion 4111a that protrudes into the receiving slot 110 and is configured to contact the docking module 200 and achieve electrical connection.

[0086] In the embodiment illustrated in the present invention, the height of the first arcuate end 4111 of the first grounding terminal G1 along the third direction A3-A3 (e.g., vertical direction) is greater than the dimension of the first arcuate end 4111 of the first signal terminal S1 along the third direction A3-A3, the dimension of the first arcuate end 4111 of the first grounding terminal G1 along the third direction A3-A3 is greater than the dimension of the first arcuate end 4111 of the second signal terminal S2 along the third direction A3-A3, the dimension of the first arcuate end 4111 of the second grounding terminal G2 along the third direction A3-A3 is greater than the dimension of the first arcuate end 4111 of the first signal terminal S1 along the third direction A3-A3, and the dimension of the first arcuate end 4111 of the second grounding terminal G2 along the third direction A3-A3 is greater than the dimension of the first arcuate end 4111 of the second signal terminal S2 along the third direction A3-A3. With this configuration, relatively high first arc-shaped ends 4111 of the first signal terminal S1 and the second arc-shaped ends 4111 of the second signal terminal S2 are respectively provided on both sides, thereby improving the quality of signal transmission. In the embodiment illustrated in the present invention, the first direction A1-A1, the second direction A2-A2, and the third direction A3-A3 are all perpendicular to each other.

[0087] In the embodiment illustrated in the present invention, the dimension of the first contact spring arm 411 of the first grounding terminal G1 along the third direction A3-A3 is greater than the dimension of the first contact spring arm 411 of the first signal terminal S1 along the third direction A3-A3, the dimension of the first contact spring arm 411 of the first grounding terminal G1 along the third direction A3-A3 is greater than the dimension of the first contact spring arm 411 of the second signal terminal S2 along the third direction A3-A3, the dimension of the first contact spring arm 411 of the second grounding terminal G2 along the third direction A3-A3 is greater than the dimension of the first contact spring arm 411 of the first signal terminal S1 along the third direction A3-A3, and the dimension of the first contact spring arm 411 of the second grounding terminal G2 along the third direction A3-A3 is greater than the dimension of the first contact spring arm 411 of the second signal terminal S2 along the third direction A3-A3. With this configuration, relatively high first contact spring arms 411 of the first grounding terminal G1 and the first contact spring arms 411 of the second grounding terminal G2 are respectively provided on both sides of the first contact spring arm 411 of the first signal terminal S1 and the first contact spring arm 411 of the second signal terminal S2 along the length direction, which is beneficial to further improve the quality of signal transmission.

[0088] In the embodiment illustrated in the present invention, both the first grounding terminal G1 and the second grounding terminal G2 are manufactured by a blanking process. Those skilled in the art will understand that "blanking process" means that the width of the first grounding terminal G1 and the second grounding terminal G2 along the second direction A2-A2 is the same as the width of the material strip. In other words, if the width of the first grounding terminal G1 and the second grounding terminal G2 along the second direction A2-A2 needs to be larger, a thicker material strip is correspondingly required.

[0089] Both the first signal terminal S1 and the second signal terminal S2 are manufactured by stamping. Those skilled in the art will understand that "stamping" means that the first signal terminal S1 and the second signal terminal S2 are stamped from a single metal sheet, and the widths of the first signal terminal S1 and the second signal terminal S2 can be formed as needed by stamping on the metal sheet, and the widths of the first signal terminal S1 and the second signal terminal S2 are not affected by the thickness of the metal sheet.

[0090] Of course, those skilled in the art will understand that the first contact spring arms 411 of the first grounding terminal G1 and the second grounding terminal G2 manufactured by blanking have greater rigidity than the first contact spring arms 411 of the first signal terminal S1 and the second signal terminal S2 manufactured by stamping. In other words, the first contact spring arms 411 of the first grounding terminal G1 and the second grounding terminal G2 manufactured by blanking are less prone to elastic deformation than the first contact spring arms 411 of the first signal terminal S1 and the second signal terminal S2 manufactured by stamping.

[0091] In the embodiment illustrated in the present invention, the first contact portion 4111a of the first signal terminal S1 is flush with the first contact portion 4111a of the second signal terminal S2; the first contact portion 4111a of the first ground terminal G1 is flush with the first contact portion 4111a of the second ground terminal G2.

[0092] The first contact portion 4111a of the first signal terminal S1 and the first contact portion 4111a of the second signal terminal S2 protrude downward along the third direction A3-A3 beyond the first contact portion 4111a of the first ground terminal G1 and the first contact portion 4111a of the second ground terminal G2, such that the first contact portion 4111a of the first signal terminal S1 and the first contact portion 4111a of the second signal terminal S2 both protrude further into the receiving slot 110 than the first contact portion 4111a of the first ground terminal G1 and the first contact portion 4111a of the second ground terminal G2. This arrangement, by keeping the first contact portion 4111a of the first ground terminal G1 and the first contact portion 4111a of the second ground terminal G2, which are less prone to elastic deformation, further away from the receiving slot 110, achieves a balance between the first ground terminal G1 and the second ground terminal G2 manufactured by blanking and the first signal terminal S1 and the second signal terminal S2 manufactured by stamping.

[0093] In the embodiment illustrated in the present invention, the first terminal module M1 further includes a first retaining block 47 fixed to the first signal terminal S1 and the second signal terminal S2, such that the first signal terminal S1, the second signal terminal S2, and the first retaining block 47 form an integral first terminal module TM1. In one embodiment of the present invention, the first contact spring arm 411 of the first signal terminal S1 and the first contact spring arm 411 of the second signal terminal S2 are both partially embedded in the first retaining block 47.

[0094] Specifically, in the embodiment illustrated in the present invention, the first retaining block 47 is provided with a first base portion 471, a first support portion 472 extending from one end of the first base portion 471, and a first covering portion 473 extending from the other end of the first base portion 471. The first contact spring arm 411 of the first signal terminal S1 and the first contact spring arm 411 of the second signal terminal S2 are at least partially fixed to the first base portion 471. The first contact spring arm 411 of the first signal terminal S1 and the first contact spring arm 411 of the second signal terminal S2 are at least partially exposed to and supported by the first support portion 472. The second inclined portion 414 of the first signal terminal S1 and the second inclined portion 414 of the second signal terminal S2 are at least partially fixed to the first covering portion 473.

[0095] In the embodiment illustrated in the present invention, the first retaining block 47 includes a first positioning block 474 and a second positioning block 475 extending from the first support portion 472 along the third direction A3-A3, wherein the first contact spring arm 411 of the first signal terminal S1 and the first contact spring arm 411 of the second signal terminal S2 are constrained between the first positioning block 474 and the second positioning block 475. The first positioning block 474 abuts against the first contact spring arm 411 of the first signal terminal S1 to limit the first contact spring arm 411 of the first signal terminal S1, and the second positioning block 475 abuts against the first contact spring arm 411 of the second signal terminal S2 to limit the first contact spring arm 411 of the second signal terminal S2.

[0096] In the illustrated embodiment of the present invention, both the first connecting portion 412 of the first grounding terminal G1 and the first connecting portion 412 of the second grounding terminal G2 include a first fixing portion 4121 and at least one first protrusion 4122 protruding from the first fixing portion 4121. The first fixing portion 4121 of the first conductive terminal 41 is fixed to the first body portion 401 of the first insulating block 40. In the illustrated embodiment of the present invention, the first fixing portion 4121 of the first grounding terminal G1 is provided with a first fixing protrusion 4121a fixed in the first insulating block 40, and the first fixing portion 4121 of the second grounding terminal G2 is provided with a second fixing protrusion 4121b fixed in the first insulating block 40.

[0097] Furthermore, both the first inclined portion 413 of the first grounding terminal G1 and the first inclined portion 413 of the second grounding terminal G3 include a second fixing portion 4131 and at least one first protrusion 4132 protruding from the second fixing portion 4131. The second fixing portion 4131 of the first conductive terminal 41 is fixed to the first inclined wall 402 of the first insulating block 40. In the embodiment illustrated in the present invention, the second fixing portion 4131 of the first grounding terminal G1 is provided with a third fixing protrusion 4131a fixed in the first insulating block 40, and the second fixing portion 4131 of the second grounding terminal G2 is provided with a fourth fixing protrusion 4131b fixed in the first insulating block 40.

[0098] The first shielding plate 43 is made of metal and includes a first base plate portion 431 shielding the first connecting portion 412, a first shielding portion 432 shielding the first inclined portion 413, a first extension portion 433 and a second extension portion 434 connected to the first base plate portion 431, and a first crossbeam 435 connecting the first extension portion 433 and the second extension portion 434. Both the first extension portion 433 and the second extension portion 434 extend beyond the first crossbeam 435. The first shielding plate 43 does not contact the first signal terminal S1 and the second signal terminal S2 to avoid short circuits. The first base plate portion 431 has at least one first mounting hole 4311, and the first protrusion 4122 mates with the first mounting hole 4311. The first shielding portion 432 has at least one first fixing hole 4321, and the first protrusion 4132 mates with the first fixing hole 4321. The first extension 433 is in contact with the second inclined portion 414 of the first grounding terminal G1, and the second extension 434 is in contact with the second inclined portion 414 of the second grounding terminal G2.

[0099] The first shielding sheet 43 of the present invention extends substantially along the second inclined portion 414, the first connecting portion 412, and the first inclined portion 413 of the first conductive terminal 41, thereby providing a high degree of shielding for the above-mentioned portion of the first conductive terminal 41. Furthermore, by providing the first protrusion 4122 and the first protrusion 4132 and allowing them to pass through the first shielding sheet 43, openings that would affect shielding performance can be avoided on the first shielding sheet 43, which is beneficial for improving the quality of signal transmission.

[0100] The first tail portion 415 is configured to be mounted on the circuit board 300. For example, the first tail portion 415 is soldered to the first conductive sheet 301 of the circuit board 300. The dimension of the first tail portion 415 of the first ground terminal G1 along the third direction A3-A3 is larger than the dimension of the first tail portion 415 of the first signal terminal S1 along the third direction A3-A3, the dimension of the first tail portion 415 of the first ground terminal G1 along the third direction A3-A3 is larger than the dimension of the first tail portion 415 of the second signal terminal S2 along the third direction A3-A3, the dimension of the first tail portion 415 of the second ground terminal G2 along the third direction A3-A3 is larger than the dimension of the first tail portion 415 of the first signal terminal S1 along the third direction A3-A3, and the dimension of the first tail portion 415 of the second ground terminal G2 along the third direction A3-A3 is larger than the dimension of the first tail portion 415 of the second signal terminal S2 along the third direction A3-A3. With this configuration, relatively high first tail 415s of the first grounding terminal G1 and the second grounding terminal G2 are respectively provided on both sides of the first tail 415 of the first signal terminal S1 and the first tail 415 of the second signal terminal S2 along the length direction, which is beneficial to further improve the quality of signal transmission.

[0101] The first grounding piece 45 is fixed on the first holding block 47. The first grounding piece 45 is provided with a first opening 451 that engages with the first holding block 47. The first grounding piece 45 is in contact with the first grounding terminal G1 and the second grounding terminal G2.

[0102] The plurality of second conductive terminals 42 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. 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. In one embodiment of the present invention, the third signal terminal S3 and the fourth signal terminal S4 form a second differential pair DP2 to improve the signal transmission rate.

[0103] Each second conductive terminal 42 includes a second contact spring arm 421, a second connecting portion 422 connected to the second contact spring arm 421, a third inclined portion 423 connected to the second connecting portion 422, and a second tail portion 425 extending from the third inclined portion 423. The second contact spring arm 421 has a second arcuate end 4211, and the second arcuate end 4211 has a second contact portion 4211a that protrudes into the receiving slot 110 and is configured to contact the docking module 200 and achieve electrical connection.

[0104] In the embodiment illustrated in the present invention, the dimension of the second arcuate end 4211 of the third grounding terminal G3 along the third direction A3-A3 is greater than the dimension of the second arcuate end 4211 of the third signal terminal S3 along the third direction A3-A3, the dimension of the second arcuate end 4211 of the third grounding terminal G3 along the third direction A3-A3 is greater than the dimension of the second arcuate end 4211 of the fourth signal terminal S4 along the third direction A3-A3, the dimension of the second arcuate end 4211 of the fourth grounding terminal G4 along the third direction A3-A3 is greater than the dimension of the second arcuate end 4211 of the third signal terminal S3 along the third direction A3-A3, and the dimension of the second arcuate end 4211 of the fourth grounding terminal G4 along the third direction A3-A3 is greater than the dimension of the second arcuate end 4211 of the fourth signal terminal S4 along the third direction A3-A3. With this configuration, relatively high second arc-shaped ends 4211 of the third signal terminal S3 and the fourth signal terminal S4 are respectively provided on both sides of the second arc-shaped end 4211 of the third signal terminal S3 and the second arc-shaped end 4211 of the fourth signal terminal S4, which helps to improve the quality of signal transmission.

[0105] In the illustrated embodiment of the present invention, the dimension of the second contact spring arm 421 of the third grounding terminal G3 along the third direction A3-A3 is greater than the dimension of the second contact spring arm 421 of the third signal terminal S3 along the third direction A3-A3, the dimension of the second contact spring arm 421 of the third grounding terminal G3 along the third direction A3-A3 is greater than the dimension of the second contact spring arm 421 of the fourth signal terminal S4 along the third direction A3-A3, the dimension of the second contact spring arm 421 of the fourth grounding terminal G4 along the third direction A3-A3 is greater than the dimension of the second contact spring arm 421 of the third signal terminal S3 along the third direction A3-A3, and the dimension of the second contact spring arm 421 of the fourth grounding terminal G4 along the third direction A3-A3 is greater than the dimension of the second contact spring arm 421 of the fourth signal terminal S4 along the third direction A3-A3. With this configuration, relatively high second contact spring arms 421 of the third grounding terminal G3 and the fourth grounding terminal G4 are respectively provided on both sides of the second contact spring arm 421 of the third signal terminal S3 and the second contact spring arm 421 of the fourth signal terminal S4 along the length direction, which is beneficial to further improve the quality of signal transmission.

[0106] In the embodiment illustrated in the present invention, both the third grounding terminal G3 and the fourth grounding terminal G4 are manufactured by a blanking process. Those skilled in the art will understand that "blanking process" means that the width of the third grounding terminal G3 and the fourth grounding terminal G4 along the second direction A2-A2 is the same as the width of the material strip. In other words, if the width of the third grounding terminal G3 and the fourth grounding terminal G4 along the second direction A2-A2 needs to be larger, a thicker material strip is correspondingly required.

[0107] Both the third signal terminal S3 and the fourth signal terminal S4 are manufactured by stamping. Those skilled in the art will understand that "stamping" means that the third signal terminal S3 and the fourth signal terminal S4 are stamped from a single metal sheet, and the width of the third signal terminal S3 and the fourth signal terminal S4 can be formed as needed by stamping on the metal sheet, and the width of the third signal terminal S3 and the fourth signal terminal S4 is not affected by the thickness of the metal sheet.

[0108] Of course, those skilled in the art will understand that the second contact spring arms 421 of the third grounding terminal G3 and the fourth grounding terminal G4, manufactured by blanking, have greater rigidity than the second contact spring arms 421 of the third signal terminal S3 and the fourth signal terminal S4, manufactured by stamping. In other words, the second contact spring arms 421 of the third grounding terminal G3 and the fourth grounding terminal G4, manufactured by blanking, are less prone to elastic deformation than the second contact spring arms 421 of the third signal terminal S3 and the fourth signal terminal S4, manufactured by stamping.

[0109] In the embodiment illustrated in the present invention, the second contact portion 4211a of the third signal terminal S3 is flush with the second contact portion 4211a of the fourth signal terminal S4; the second contact portion 4211a of the third ground terminal G3 is flush with the second contact portion 4211a of the fourth ground terminal G4.

[0110] The second contact portion 4211a of the third signal terminal S3 and the second contact portion 4211a of the fourth signal terminal S4 protrude downward along the third direction A3-A3 beyond the second contact portion 4211a of the third ground terminal G3 and the second contact portion 4211a of the fourth ground terminal G4, such that the second contact portion 4211a of the third signal terminal S3 and the second contact portion 4211a of the fourth signal terminal S4 both protrude further into the receiving slot 110 than the second contact portion 4211a of the third ground terminal G3 and the second contact portion 4211a of the fourth ground terminal G4. This arrangement, by keeping the second contact portion 4211a of the third ground terminal G3 and the second contact portion 4211a of the fourth ground terminal G4, which are less prone to elastic deformation, further away from the receiving slot 110, achieves a balance between the third ground terminal G3 and the fourth ground terminal G4 manufactured by blanking and the third signal terminal S3 and the fourth signal terminal S4 manufactured by stamping.

[0111] In the embodiment illustrated in the present invention, the first terminal module M1 further includes a second retaining block 48 fixed to the third signal terminal S3 and the fourth signal terminal S4, such that the third signal terminal S3, the fourth signal terminal S4, and the second retaining block 48 form an integral second terminal module TM2. In one embodiment of the present invention, the second contact spring arm 421 of the third signal terminal S3 and the second contact spring arm 421 of the fourth signal terminal S4 are both partially embedded in the second retaining block 48.

[0112] Specifically, in the embodiment illustrated in the present invention, the second retaining block 48 is provided with a second base portion 481 and a second support portion 482 extending from the second base portion 481. The second contact spring arm 421 of the third signal terminal S3 and the second contact spring arm 421 of the fourth signal terminal S4 are at least partially fixed to the second base portion 481, and the second contact spring arm 421 of the third signal terminal S3 and the second contact spring arm 421 of the fourth signal terminal S4 are at least partially exposed to and supported by the second support portion 482.

[0113] In the illustrated embodiment of the present invention, the second connection portion 422 of the third grounding terminal G3 and the second connection portion 422 of the fourth grounding terminal G4 both include a fifth fixing tab 422a. The second connection portion 422 of the second conductive terminal 42 is fixed to the first body portion 401 of the first insulating block 40. The third grounding terminal G3 and the fourth grounding terminal G4 also include a sixth fixing tab 423a extending from the second tail portion 425 and fixed in the first insulating block 40.

[0114] Furthermore, both the third inclined portion 423 of the third grounding terminal G3 and the third inclined portion 423 of the fourth grounding terminal G4 include a third fixing portion 4231 and at least one second protrusion 4232 protruding from the third fixing portion 4231. The third fixing portion 4231 of the second conductive terminal 42 is fixed to the second inclined wall 403 of the first insulating block 40.

[0115] The second shielding plate 44 is made of metal and has a second base plate portion 441 that shields the third inclined portion 423. The second shielding plate 44 does not contact the third signal terminal S3 and the fourth signal terminal S4 to avoid short circuits. The second base plate portion 441 has at least one second mounting hole 4411, and the second protrusion 4232 mates with the second mounting hole 4411.

[0116] The second tail portion 425 is configured to be mounted on the circuit board 300. For example, the second tail portion 425 is soldered to the second conductive sheet 302 of the circuit board 300. The dimension of the second tail portion 425 of the third ground terminal G3 along the third direction A3-A3 is greater than the dimension of the second tail portion 425 of the third signal terminal S3 along the third direction A3-A3, the dimension of the second tail portion 425 of the third ground terminal G3 along the third direction A3-A3 is greater than the dimension of the second tail portion 425 of the fourth signal terminal S4 along the third direction A3-A3, the dimension of the second tail portion 425 of the fourth ground terminal G4 along the third direction A3-A3 is greater than the dimension of the second tail portion 425 of the third signal terminal S3 along the third direction A3-A3, and the dimension of the second tail portion 425 of the fourth ground terminal G4 along the third direction A3-A3 is greater than the dimension of the second tail portion 425 of the fourth signal terminal S4 along the third direction A3-A3. With this configuration, relatively high second tails 425 of the third grounding terminal G3 and the fourth grounding terminal G4 are respectively provided on both sides of the second tail 425 of the third signal terminal S3 and the second tail 425 of the fourth signal terminal S4 along the length direction, which helps to further improve the quality of signal transmission.

[0117] The second grounding piece 46 is fixed on the second holding block 48. The second grounding piece 46 has a second opening 461 that engages with the second holding block 48. The second grounding piece 46 is in contact with the third grounding terminal G3 and the fourth grounding terminal G4.

[0118] In the embodiment illustrated in the present invention, the second terminal module M2 includes a second insulating block 50, a plurality of third conductive terminals 51, a plurality of fourth conductive terminals 52, a third shielding plate 53, a fourth shielding plate 54, a third grounding plate 55, and a fourth grounding plate 56.

[0119] The plurality of third conductive terminals 51 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. 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. In one embodiment of the present invention, the fifth signal terminal S5 and the sixth signal terminal S6 form a third differential pair DP3 to improve the signal transmission rate.

[0120] Each third conductive terminal 51 includes a third contact spring arm 511, a third connecting portion 512, a fourth inclined portion 514 connecting the third contact spring arm 511 and the third connecting portion 512, and a third tail portion 515. The third contact spring arm 511 has a third arc-shaped end 5111, and the third arc-shaped end 5111 has a third contact portion 5111a that protrudes into the receiving slot 110 and is configured to contact the docking module 200 and achieve electrical connection.

[0121] In the embodiment illustrated in the present invention, the dimension of the third arcuate end 5111 of the fifth grounding terminal G5 along the third direction A3-A3 is greater than the dimension of the third arcuate end 5111 of the fifth signal terminal S5 along the third direction A3-A3, the dimension of the third arcuate end 5111 of the fifth grounding terminal G5 along the third direction A3-A3 is greater than the dimension of the third arcuate end 5111 of the sixth signal terminal S6 along the third direction A3-A3, the dimension of the third arcuate end 5111 of the sixth grounding terminal G6 along the third direction A3-A3 is greater than the dimension of the third arcuate end 5111 of the fifth signal terminal S5 along the third direction A3-A3, and the dimension of the third arcuate end 5111 of the sixth grounding terminal G6 along the third direction A3-A3 is greater than the dimension of the third arcuate end 5111 of the sixth signal terminal S6 along the third direction A3-A3. With this configuration, the third arc-shaped ends 5111 of the fifth signal terminal S5 and the sixth signal terminal S6 are respectively provided with relatively high heights on both sides of the third arc-shaped end 5111 of the fifth signal terminal S5 and the third arc-shaped end 5111 of the sixth signal terminal S6, which is beneficial to improving the quality of signal transmission.

[0122] In the embodiment illustrated in the present invention, the dimension of the third contact spring arm 511 of the fifth grounding terminal G5 along the third direction A3-A3 is greater than the dimension of the third contact spring arm 511 of the fifth signal terminal S5 along the third direction A3-A3, the dimension of the third contact spring arm 511 of the fifth grounding terminal G5 along the third direction A3-A3 is greater than the dimension of the third contact spring arm 511 of the sixth signal terminal S6 along the third direction A3-A3, the dimension of the third contact spring arm 511 of the sixth grounding terminal G6 along the third direction A3-A3 is greater than the dimension of the third contact spring arm 511 of the fifth signal terminal S5 along the third direction A3-A3, and the dimension of the third contact spring arm 511 of the sixth grounding terminal G6 along the third direction A3-A3 is greater than the dimension of the third contact spring arm 511 of the sixth signal terminal S6 along the third direction A3-A3. With this configuration, relatively high third contact spring arms 511 of the fifth grounding terminal G5 and the sixth grounding terminal G6 are respectively provided on both sides of the third contact spring arm 511 of the fifth signal terminal S5 and the third contact spring arm 511 of the sixth signal terminal S6 along the length direction, which is beneficial to further improve the quality of signal transmission.

[0123] In the embodiment illustrated in the present invention, both the fifth grounding terminal G5 and the sixth grounding terminal G6 are manufactured by a blanking process. Those skilled in the art will understand that "blanking process" means that the width of the fifth grounding terminal G5 and the sixth grounding terminal G6 along the second direction A2-A2 is the same as the width of the material strip. In other words, if the width of the fifth grounding terminal G5 and the sixth grounding terminal G6 along the second direction A2-A2 needs to be larger, a thicker material strip is correspondingly required.

[0124] Both the fifth signal terminal S5 and the sixth signal terminal S6 are manufactured by stamping. Those skilled in the art will understand that "stamping" means that the fifth signal terminal S5 and the sixth signal terminal S6 are stamped from a single metal sheet, and the width of the fifth signal terminal S5 and the sixth signal terminal S6 can be formed as needed by stamping on the metal sheet, and the width of the fifth signal terminal S5 and the sixth signal terminal S6 is not affected by the thickness of the metal sheet.

[0125] Of course, those skilled in the art will understand that the third contact spring arm 511 of the fifth grounding terminal G5 and the sixth grounding terminal G6, manufactured by blanking, has greater rigidity than the third contact spring arm 511 of the fifth signal terminal S5 and the sixth signal terminal S6, manufactured by stamping. In other words, the third contact spring arm 511 of the fifth grounding terminal G5 and the sixth grounding terminal G6, manufactured by blanking, is less prone to elastic deformation than the third contact spring arm 511 of the fifth signal terminal S5 and the sixth signal terminal S6, manufactured by stamping.

[0126] In the embodiment illustrated in the present invention, the third contact portion 5111a of the fifth signal terminal S5 is flush with the third contact portion 5111a of the sixth signal terminal S6; the third contact portion 5111a of the fifth ground terminal G5 is flush with the third contact portion 5111a of the sixth ground terminal G6.

[0127] The third contact portion 5111a of the fifth signal terminal S5 and the third contact portion 5111a of the sixth signal terminal S6 protrude upward along the third direction A3-A3 beyond the third contact portion 5111a of the fifth ground terminal G5 and the third contact portion 5111a of the sixth ground terminal G6, such that the third contact portion 5111a of the fifth signal terminal S5 and the third contact portion 5111a of the sixth signal terminal S6 both protrude further into the receiving slot 110 than the third contact portion 5111a of the fifth ground terminal G5 and the third contact portion 5111a of the sixth ground terminal G6. This arrangement, by keeping the third contact portion 5111a of the fifth ground terminal G5 and the third contact portion 5111a of the sixth ground terminal G6, which are less prone to elastic deformation, further away from the receiving slot 110, allows for a balance between the fifth ground terminal G5 and the sixth ground terminal G6 manufactured by blanking and the fifth signal terminal S5 and the sixth signal terminal S6 manufactured by stamping.

[0128] In the embodiment illustrated in the present invention, the second terminal module M2 further includes a third retaining block 57 fixed to the fifth signal terminal S5 and the sixth signal terminal S6, such that the fifth signal terminal S5, the sixth signal terminal S6, and the third retaining block 57 form an integral third terminal module TM3. In one embodiment of the present invention, the third contact spring arm 511 of the fifth signal terminal S5 and the third contact spring arm 511 of the sixth signal terminal S6 are both partially embedded in the third retaining block 57.

[0129] Specifically, in the embodiment illustrated in the present invention, the third retaining block 57 is provided with a third base portion 571 and a third support portion 572 extending from one end of the third base portion 571. The third contact spring arm 511 of the fifth signal terminal S5 and the third contact spring arm 511 of the sixth signal terminal S6 are at least partially fixed to the third base portion 571, and the third contact spring arm 511 of the fifth signal terminal S5 and the third contact spring arm 511 of the sixth signal terminal S6 are at least partially exposed to and supported by the third support portion 572.

[0130] In the embodiment illustrated in the present invention, the third connection portion 512 of the fifth grounding terminal G5 and the third connection portion 512 of the sixth grounding terminal G6 both include a fourth fixing portion 5121 and at least one third protrusion 5122 protruding from the fourth fixing portion 5121. The fourth fixing portion 5121 of the third conductive terminal 51 is fixed to the second insulating block 50.

[0131] The third shielding plate 53 is made of metal and includes a third base plate portion 531 that shields the third connecting portion 512, a third extension portion 533 and a fourth extension portion 534 connected to the third base plate portion 531, and a second crossbeam 535 connecting the third extension portion 533 and the fourth extension portion 534. Both the third extension portion 533 and the fourth extension portion 534 extend beyond the second crossbeam 535. The third shielding plate 53 does not contact the fifth signal terminal S5 and the sixth signal terminal S6 to avoid short circuits. The third base plate portion 531 has at least one third mounting hole 5311, and the third protrusion 5122 mates with the third mounting hole 5311.

[0132] The third tail portion 515 is configured to be mounted on the circuit board 300. For example, the third tail portion 515 is soldered and fixed to the third conductive sheet 303 of the circuit board 300. The dimension of the third tail portion 515 of the fifth ground terminal G5 along the third direction A3-A3 is larger than the dimension of the third tail portion 515 of the fifth signal terminal S5 along the third direction A3-A3, the dimension of the third tail portion 515 of the fifth ground terminal G5 along the third direction A3-A3 is larger than the dimension of the third tail portion 515 of the sixth signal terminal S6 along the third direction A3-A3, the dimension of the third tail portion 515 of the sixth ground terminal G6 along the third direction A3-A3 is larger than the dimension of the third tail portion 515 of the fifth signal terminal S5 along the third direction A3-A3, and the dimension of the third tail portion 515 of the sixth ground terminal G6 along the third direction A3-A3 is larger than the dimension of the third tail portion 515 of the sixth signal terminal S6 along the third direction A3-A3. With this configuration, relatively high third tails 515 of the fifth grounding terminal G5 and the sixth grounding terminal G6 are respectively provided on both sides of the third tail 515 of the fifth signal terminal S5 and the third tail 515 of the sixth signal terminal S6 along the length direction, which is beneficial to further improve the quality of signal transmission.

[0133] The third grounding piece 55 is fixed on the third holding block 57. The third grounding piece 55 is provided with a third opening 551 that engages with the third holding block 57. The third grounding piece 55 is in contact with the fifth grounding terminal G5 and the sixth grounding terminal G6.

[0134] The plurality of fourth conductive terminals 52 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. 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. In one embodiment of the present invention, the seventh signal terminal S7 and the eighth signal terminal S8 form a fourth differential pair DP4 to improve the signal transmission rate.

[0135] Each fourth conductive terminal 52 includes a fourth contact spring arm 521, a fourth connecting portion 522 connected to the fourth contact spring arm 521, and a fourth tail portion 525. The fourth connecting portion 522 is generally L-shaped. The fourth contact spring arm 521 has a fourth arc-shaped end 5211, and the fourth arc-shaped end 5211 has a fourth contact portion 5211a that protrudes into the receiving slot 110 and is configured to contact the docking module 200 and achieve electrical connection.

[0136] In the embodiment illustrated in the present invention, the dimension of the fourth arcuate end 5211 of the seventh grounding terminal G7 along the third direction A3-A3 is greater than the dimension of the fourth arcuate end 5211 of the seventh signal terminal S7 along the third direction A3-A3, the dimension of the fourth arcuate end 5211 of the seventh grounding terminal G7 along the third direction A3-A3 is greater than the dimension of the fourth arcuate end 5211 of the eighth signal terminal S8 along the third direction A3-A3, the dimension of the fourth arcuate end 5211 of the eighth grounding terminal G8 along the third direction A3-A3 is greater than the dimension of the fourth arcuate end 5211 of the seventh signal terminal S7 along the third direction A3-A3, and the dimension of the fourth arcuate end 5211 of the eighth grounding terminal G8 along the third direction A3-A3 is greater than the dimension of the fourth arcuate end 5211 of the eighth signal terminal S8 along the third direction A3-A3. With this configuration, the fourth arc-shaped ends 5211 of the seventh grounding terminal G7 and the eighth grounding terminal G8 are respectively provided on both sides of the fourth arc-shaped end 5211 of the seventh signal terminal S7 and the fourth arc-shaped end 5211 of the eighth signal terminal S8, which are relatively high, thereby improving the quality of signal transmission.

[0137] In the embodiment illustrated in the present invention, the dimension of the fourth contact spring arm 521 of the seventh grounding terminal G7 along the third direction A3-A3 is greater than the dimension of the fourth contact spring arm 521 of the seventh signal terminal S7 along the third direction A3-A3, the dimension of the fourth contact spring arm 521 of the seventh grounding terminal G7 along the third direction A3-A3 is greater than the dimension of the fourth contact spring arm 521 of the eighth signal terminal S8 along the third direction A3-A3, the dimension of the fourth contact spring arm 521 of the eighth grounding terminal G8 along the third direction A3-A3 is greater than the dimension of the fourth contact spring arm 521 of the seventh signal terminal S7 along the third direction A3-A3, and the dimension of the fourth contact spring arm 521 of the eighth grounding terminal G8 along the third direction A3-A3 is greater than the dimension of the fourth contact spring arm 521 of the eighth signal terminal S8 along the third direction A3-A3. With this configuration, relatively high fourth contact spring arms 521 of the seventh grounding terminal G7 and the eighth grounding terminal G8 are respectively provided on both sides of the fourth contact spring arm 521 of the seventh signal terminal S7 and the fourth contact spring arm 521 of the eighth signal terminal S8 along the length direction, which is beneficial to further improve the quality of signal transmission.

[0138] In the embodiment illustrated in the present invention, both the seventh grounding terminal G7 and the eighth grounding terminal G8 are manufactured by a blanking process. Those skilled in the art will understand that "blanking process" means that the width of the seventh grounding terminal G7 and the eighth grounding terminal G8 along the second direction A2-A2 is the same as the width of the material strip. In other words, if the width of the seventh grounding terminal G7 and the eighth grounding terminal G8 along the second direction A2-A2 needs to be larger, a thicker material strip is correspondingly required.

[0139] Both the seventh signal terminal S7 and the eighth signal terminal S8 are manufactured by stamping. Those skilled in the art will understand that "stamping" means that the seventh signal terminal S7 and the eighth signal terminal S8 are stamped from a single metal sheet, and the width of the seventh signal terminal S7 and the eighth signal terminal S8 can be formed as needed by stamping on the metal sheet, and the width of the seventh signal terminal S7 and the eighth signal terminal S8 is not affected by the thickness of the metal sheet.

[0140] Of course, those skilled in the art will understand that the fourth contact spring arm 521 of the seventh grounding terminal G7 and the eighth grounding terminal G8, manufactured by blanking, has greater rigidity than the fourth contact spring arm 521 of the seventh signal terminal S7 and the eighth signal terminal S8, manufactured by stamping. In other words, the fourth contact spring arm 521 of the seventh grounding terminal G7 and the eighth grounding terminal G8, manufactured by blanking, is less prone to elastic deformation than the fourth contact spring arm 521 of the seventh signal terminal S7 and the eighth signal terminal S8, manufactured by stamping.

[0141] In the embodiment illustrated in the present invention, the fourth contact portion 5211a of the seventh signal terminal S7 is flush with the fourth contact portion 5211a of the eighth signal terminal S8; the fourth contact portion 5211a of the seventh ground terminal G7 is flush with the fourth contact portion 5211a of the eighth ground terminal G8.

[0142] The fourth contact portion 5211a of the seventh signal terminal S7 and the fourth contact portion 5211a of the eighth signal terminal S8 protrude upward along the third direction A3-A3 beyond the fourth contact portion 5211a of the seventh ground terminal G7 and the fourth contact portion 5211a of the eighth ground terminal G8, such that the fourth contact portion 5211a of the seventh signal terminal S7 and the fourth contact portion 5211a of the eighth signal terminal S8 both protrude further into the receiving slot 110 than the fourth contact portion 5211a of the seventh ground terminal G7 and the fourth contact portion 5211a of the eighth ground terminal G8. This arrangement, by keeping the fourth contact portion 5211a of the seventh ground terminal G7 and the fourth contact portion 5211a of the eighth ground terminal G8, which are less prone to elastic deformation, further away from the receiving slot 110, achieves a balance between the seventh ground terminal G7 and the eighth ground terminal G8 manufactured by blanking and the seventh signal terminal S7 and the eighth signal terminal S8 manufactured by stamping.

[0143] In the embodiment illustrated in the present invention, the second terminal module M2 further includes a fourth retaining block 58 fixed to the seventh signal terminal S7 and the eighth signal terminal S8, such that the seventh signal terminal S7, the eighth signal terminal S8, and the fourth retaining block 58 form an integral fourth terminal module TM4. In one embodiment of the present invention, the fourth contact spring arm 521 of the seventh signal terminal S7 and the fourth contact spring arm 521 of the eighth signal terminal S8 are both partially embedded in the fourth retaining block 58.

[0144] Specifically, in the embodiment illustrated in the present invention, the fourth retaining block 58 is provided with a fourth base portion 581 and a fourth support portion 582 extending from the fourth base portion 581. The fourth contact spring arm 521 of the seventh signal terminal S7 and the fourth contact spring arm 521 of the eighth signal terminal S8 are at least partially fixed to the fourth base portion 581, and the fourth contact spring arm 521 of the seventh signal terminal S7 and the fourth contact spring arm 521 of the eighth signal terminal S8 are at least partially exposed to and supported by the fourth support portion 582.

[0145] Furthermore, the fourth connection portion 522 of the seventh grounding terminal G7 and the fourth connection portion 522 of the eighth grounding terminal G8 both include at least one fourth protrusion 5221.

[0146] The fourth shielding plate 54 is made of metal and has a fourth base plate portion 541 that shields the fourth connecting portion 522. The fourth shielding plate 54 does not contact the seventh signal terminal S7 and the eighth signal terminal S8 to avoid short circuits. The fourth base plate portion 541 has at least one fourth mounting hole 5411, and the fourth protrusion 5221 mates with the fourth mounting hole 5411.

[0147] The fourth tail portion 525 is configured to be mounted on the circuit board 300. For example, the fourth tail portion 525 is soldered to the fourth conductive sheet 304 of the circuit board 300. The dimension of the fourth tail portion 525 of the seventh ground terminal G7 along the third direction A3-A3 is larger than the dimension of the fourth tail portion 525 of the seventh signal terminal S7 along the third direction A3-A3, the dimension of the fourth tail portion 525 of the seventh ground terminal G7 along the third direction A3-A3 is larger than the dimension of the fourth tail portion 525 of the eighth signal terminal S8 along the third direction A3-A3, the dimension of the fourth tail portion 525 of the eighth ground terminal G8 along the third direction A3-A3 is larger than the dimension of the fourth tail portion 525 of the seventh signal terminal S7 along the third direction A3-A3, and the dimension of the fourth tail portion 525 of the eighth ground terminal G8 along the third direction A3-A3 is larger than the dimension of the fourth tail portion 525 of the eighth signal terminal S8 along the third direction A3-A3. With this configuration, the fourth tail 525 of the seventh grounding terminal G7 and the fourth tail 525 of the eighth grounding terminal G8 are respectively provided on both sides of the fourth tail 525 of the seventh signal terminal S7 and the fourth tail 525 of the eighth signal terminal S8 along the length direction, which is of relatively high height, thereby helping to further improve the quality of signal transmission.

[0148] The fourth grounding piece 56 is fixed on the fourth retaining block 58. The fourth grounding piece 56 is provided with a fourth opening 561 that engages with the fourth retaining block 58. The fourth grounding piece 56 is in contact with the seventh grounding terminal G7 and the eighth grounding terminal G8.

[0149] The first contact portion 4111a of the first conductive terminal 41 is arranged in a first row L1 along the second direction A2-A2, and the second contact portion 4211a of the second conductive terminal 42 is arranged in a second row L2 along the second direction A2-A2. The first row L1 and the second row L2 are spaced apart along the first direction A1-A1. Similarly, the third contact portion 5111a of the third conductive terminal 51 is arranged in a first row L1 along the second direction A2-A2, and the fourth contact portion 5211a of the fourth conductive terminal 52 is arranged in a second row L2 along the second direction A2-A2. The first row L1 and the second row L2 are spaced apart along the first direction A1-A1.

[0150] 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: The mounting housing has a receiving slot extending along a first direction, the receiving slot being configured to receive a docking module; as well as A first terminal module is directly or indirectly disposed on the mounting housing. The first terminal module includes a plurality of first conductive terminals, including 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. The first ground terminal, the first signal terminal, the second signal terminal, and the second ground terminal are arranged sequentially along a second direction. Each first conductive terminal includes a first contact spring arm, the first contact spring arm having a first arc-shaped end, the first arc-shaped end having a first contact portion protruding into the receiving slot and configured to contact the docking module. The dimension of the first arc-shaped end of the first grounding terminal along a third direction is greater than the dimension of the first arc-shaped end of the first signal terminal along the third direction; the dimension of the first arc-shaped end of the first grounding terminal along the third direction is greater than the dimension of the first arc-shaped end of the second signal terminal along the third direction; the dimension of the first arc-shaped end of the second grounding terminal along the third direction is greater than the dimension of the first arc-shaped end of the first signal terminal along the third direction; the dimension of the first arc-shaped end of the second grounding terminal along the third direction is greater than the dimension of the first arc-shaped end of the second signal terminal along the third direction. The first direction, the second direction, and the third direction are all perpendicular to each other.

2. The electrical connector as described in claim 1, characterized in that: The dimension of the first contact spring arm of the first grounding terminal along the third direction is greater than the dimension of the first contact spring arm of the first signal terminal along the third direction. The dimension of the first contact spring arm of the first grounding terminal along the third direction is greater than the dimension of the first contact spring arm of the second signal terminal along the third direction. The dimension of the first contact spring arm of the second grounding terminal along the third direction is greater than the dimension of the first contact spring arm of the first signal terminal along the third direction. The dimension of the first contact spring arm of the second grounding terminal along the third direction is greater than the dimension of the first contact spring arm of the second signal terminal along the third direction.

3. The electrical connector as described in claim 1, characterized in that: Both the first grounding terminal and the second grounding terminal are manufactured by blanking; both the first signal terminal and the second signal terminal are manufactured by stamping.

4. The electrical connector as described in claim 1, characterized in that: The first contact portion of the first signal terminal is flush with the first contact portion of the second signal terminal; the first contact portion of the first ground terminal is flush with the first contact portion of the second ground terminal; The first contact portion of the first signal terminal and the first contact portion of the second signal terminal protrude beyond the first contact portion of the first ground terminal and the first contact portion of the second ground terminal along the third direction, such that the first contact portion of the first signal terminal and the first contact portion of the second signal terminal both protrude into the receiving slot more than the first contact portion of the first ground terminal and the first contact portion of the second ground terminal.

5. The electrical connector as claimed in claim 1, characterized in that: Each first conductive terminal includes a first connecting portion; Both the first connection portion of the first grounding terminal and the first connection portion of the second grounding terminal include a first fixing portion and at least one first protrusion protruding from the first fixing portion; The electrical connector includes a first shield, the first shield having a first base plate portion that shields the first connection portion, the first shield not contacting the first signal terminal and the second signal terminal, the first base plate portion having at least one first mounting hole, and the first protrusion engaging with the first mounting hole.

6. The electrical connector as described in claim 5, characterized in that: Each first conductive terminal includes a first inclined portion connected to the first connecting portion; Both the first inclined portion of the first grounding terminal and the first inclined portion of the second grounding terminal include a second fixing portion and at least one first protrusion protruding from the second fixing portion; The first shielding plate has a first shielding portion that shields the first inclined portion, and the first shielding portion has at least one first fixing hole, and the first protrusion cooperates with the first fixing hole.

7. The electrical connector as described in claim 5, characterized in that: Each first conductive terminal includes a second inclined portion connected between the first contact spring arm and the first connecting portion; The first shielding sheet has a first extension and a second extension connected to the first substrate portion, wherein the first extension contacts the second inclined portion of the first grounding terminal, and the second extension contacts the second inclined portion of the second grounding terminal.

8. The electrical connector as claimed in claim 7, characterized in that: The first shielding plate is further provided with a first crossbeam connecting the first extension and the second extension, and both the first extension and the second extension extend beyond the first crossbeam.

9. The electrical connector as claimed in claim 1, characterized in that: Each first conductive terminal includes a first tail portion, the first tail portion being configured to be mounted on a circuit board; The dimension of the first tail portion of the first grounding terminal along the third direction is greater than the dimension of the first tail portion of the first signal terminal along the third direction. The dimension of the first tail portion of the first grounding terminal along the third direction is greater than the dimension of the first tail portion of the second signal terminal along the third direction. The dimension of the first tail portion of the second grounding terminal along the third direction is greater than the dimension of the first tail portion of the first signal terminal along the third direction. The dimension of the first tail portion of the second grounding terminal along the third direction is greater than the dimension of the first tail portion of the second signal terminal along the third direction.

10. The electrical connector as claimed in claim 1, characterized in that: The first terminal module includes a first insulating block, the first conductive terminal is fixed to the first insulating block, and the first contact spring arm extends out of the first insulating block; The electrical connector further includes a first retaining block fixed to the first contact spring arm of the first signal terminal and the first contact spring arm of the second signal terminal. The first retaining block has a first base portion and a first support portion extending from the first base portion. The first contact spring arm of the first signal terminal and the first contact spring arm of the second signal terminal are at least partially fixed to the first base portion. The first contact spring arm of the first signal terminal and the first contact spring arm of the second signal terminal are at least partially exposed to the first support portion and supported by the first support portion.

11. The electrical connector as claimed in claim 10, characterized in that: The first retaining block includes a first positioning block and a second positioning block extending from the first support portion along the third direction, wherein the first contact spring arm of the first signal terminal and the first contact spring arm of the second signal terminal are constrained between the first positioning block and the second positioning block, the first positioning block abuts against the first contact spring arm of the first signal terminal to limit the first contact spring arm of the first signal terminal, and the second positioning block abuts against the first contact spring arm of the second signal terminal to limit the first contact spring arm of the second signal terminal.

12. The electrical connector as claimed in claim 11, characterized in that: The first terminal module further includes a first grounding plate fixed on the first retaining block. The first grounding plate has a first opening that engages with the first retaining block. The first grounding plate is in contact with the first grounding terminal and the second grounding terminal.

13. The electrical connector as claimed in claim 1, characterized in that: The first terminal module includes a first insulating block, the first conductive terminal is fixed to the first insulating block, and the first contact spring arm extends out of the first insulating block; The first terminal module further includes a plurality of second conductive terminals, the plurality of second conductive terminals including 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; the third ground terminal, the third signal terminal, the fourth signal terminal, and the fourth ground terminal are arranged sequentially along the second direction; each second conductive terminal includes a second contact spring arm, the second contact spring arm having a second arc-shaped end, the second arc-shaped end having a second contact portion protruding into the receiving slot and configured to contact the docking module; the second conductive terminal is fixed to the first insulating block, and the second contact spring arm extends out of the first insulating block; The first contact portion of the first conductive terminal is arranged in a first row along the second direction, and the second contact portion of the second conductive terminal is arranged in a second row along the second direction. The first row and the second row are spaced apart along the first direction.

14. The electrical connector as claimed in claim 13, characterized in that: Both the third grounding terminal and the fourth grounding terminal are manufactured by blanking; both the third signal terminal and the fourth signal terminal are manufactured by stamping.

15. The electrical connector as claimed in claim 13, characterized in that: The second contact portion of the third signal terminal is flush with the second contact portion of the fourth signal terminal; the second contact portion of the third grounding terminal is flush with the second contact portion of the fourth grounding terminal. The second contact portion of the third signal terminal and the second contact portion of the fourth signal terminal protrude beyond the second contact portion of the third ground terminal and the second contact portion of the fourth ground terminal along the third direction, such that the second contact portion of the third signal terminal and the second contact portion of the fourth signal terminal both protrude further into the receiving slot than the second contact portion of the third ground terminal and the second contact portion of the fourth ground terminal.

16. The electrical connector as claimed in claim 13, characterized in that: Each second conductive terminal includes a third inclined portion; The third inclined portion of the third grounding terminal and the third inclined portion of the fourth grounding terminal both include a second fixing portion and at least one second protrusion protruding from the second fixing portion; The electrical connector includes a second shield, the second shield having a second base plate portion that covers the third inclined portion, the second shield not contacting the third signal terminal and the fourth signal terminal, the second base plate portion having at least one second mounting hole, and the second protrusion engaging with the second mounting hole.

17. The electrical connector as claimed in claim 13, characterized in that: The electrical connector further includes a second retaining block fixed on the second contact spring arm of the third signal terminal and the second contact spring arm of the fourth signal terminal, wherein the second contact spring arm of the third signal terminal and the second contact spring arm of the fourth signal terminal extend out of the second retaining block; The first terminal module further includes a second grounding plate fixed on the second retaining block. The second grounding plate has a second opening that engages with the second retaining block. The second grounding plate is in contact with the third grounding terminal and the fourth grounding terminal.

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