First terminal module and electrical connector

Abstract

A first terminal module includes a first conductive terminal and a first grounding plate. The first conductive terminal includes a first signal terminal, a second signal terminal, a first grounding terminal, and a second grounding terminal. Each first conductive terminal includes a first main body portion and a first bent portion. The first grounding plate includes a first abutting portion, a second abutting portion, a third abutting portion, and a fourth abutting portion. The first abutting portion contacts the first main body portion of the first grounding terminal. The second abutting portion contacts the first main body portion of the second grounding terminal. The third abutting portion contacts the first bent portion of the first grounding terminal. The fourth abutting portion contacts the first bent portion of the second grounding terminal. Embodiments of the present invention also disclose an electrical connector having the aforementioned first terminal module.

Description

Technical Field

[0001] This invention claims priority to Chinese Patent Application No. 2024116396356, filed on November 15, 2024, entitled "First Terminal Module and Electrical Connector", the entire contents of which are incorporated herein by reference.

[0002] This invention relates to a first terminal module and an electrical connector, belonging to the field of connector technology. Prior Technology

[0003] Electrical connectors in related technologies typically include an insulating body and a plurality of terminal modules disposed within the insulating body, wherein the terminal modules include a plurality of signal conductive terminals and a plurality of ground conductive terminals. Each conductive terminal includes a middle portion, a contact arm, and a tail portion.

[0004] To improve the transmission rate of the terminals, the aforementioned signal terminals are typically arranged in differential pairs, with a grounding conductive terminal on each side of each differential pair. Furthermore, to improve signal transmission quality, the aforementioned terminal module may also include a plurality of grounding plates, which are spaced apart along the length of the aforementioned conductive terminals. Each grounding plate is in contact with a grounding conductive terminal, but not with a signal conductive terminal.

[0005] However, there is still room for improvement in the spacing of grounding plates in related technologies. Summary of the Invention

[0006] The purpose of this invention is to provide a first terminal module with an improved first grounding plate and an electrical connector.

[0007] To achieve the aforementioned objectives, the present invention adopts the following technical solution: a first terminal module, comprising: a plurality of first conductive terminals, the plurality of first conductive terminals including a first signal terminal, a second signal terminal, a first ground terminal, and a second ground terminal, wherein the first signal terminal and the second signal terminal are close to each other, and the first ground terminal and the second ground terminal are respectively located on both sides of the first signal terminal and the second signal terminal; each first conductive terminal includes a first intermediate portion, a first contact arm, and a first tail portion; the first intermediate portion includes a first main body portion and a first bent portion connected to the first main body portion; and a first grounding plate, the first grounding plate being integrally formed, the first grounding plate including a first base portion, a first abutting portion and a second abutting portion extending from both sides of the first base portion respectively, a first inclined portion connected to the first base portion, and a third abutting portion and a fourth abutting portion extending from both sides of the first inclined portion respectively; The aforementioned first abutting portion contacts the first main body portion of the aforementioned first grounding terminal, the aforementioned second abutting portion contacts the first main body portion of the aforementioned second grounding terminal, the aforementioned third abutting portion contacts the first bent portion of the aforementioned first grounding terminal, the aforementioned fourth abutting portion contacts the first bent portion of the aforementioned second grounding terminal, the aforementioned first base portion at least partially covers the first main body portion of the aforementioned first signal terminal and the first main body portion of the aforementioned second signal terminal, and does not contact the first main body portion of the aforementioned first signal terminal and the first main body portion of the aforementioned second signal terminal; the aforementioned first inclined portion at least partially covers the first bent portion of the aforementioned first signal terminal and the first bent portion of the aforementioned second signal terminal, and does not contact the first bent portion of the aforementioned first signal terminal and the first bent portion of the aforementioned second signal terminal.

[0008] As a further improved technical solution of the embodiment of the present invention, the first intermediate portion of each first conductive terminal includes a first extension portion connected to the aforementioned first bent portion, and the aforementioned first extension portion is parallel to the aforementioned first main body portion; the aforementioned first grounding piece includes a first extension portion connected to the aforementioned first inclined portion and a fifth abutment portion and a sixth abutment portion extending from both sides of the aforementioned first extension portion respectively, wherein the aforementioned first extension portion is parallel to the aforementioned first base portion, the aforementioned fifth abutment portion contacts the first extension portion of the aforementioned first grounding terminal, the aforementioned sixth abutment portion contacts the first extension portion of the aforementioned second grounding terminal, and the aforementioned first extension portion at least partially shields the first extension portion of the aforementioned first signal terminal and the first extension portion of the aforementioned second signal terminal, and does not contact the first extension portion of the aforementioned first signal terminal and the first extension portion of the aforementioned second signal terminal.

[0009] As a further improved technical solution of the embodiment of the present invention, each first conductive terminal includes a second bent portion connected to the aforementioned first extension portion, the aforementioned first tail portion being connected to the aforementioned second bent portion, the aforementioned second bent portion being perpendicular to the aforementioned first extension portion, and the aforementioned first tail portion being parallel to the aforementioned first extension portion.

[0010] As a further improved technical solution of the embodiment of the present invention, the width of the first middle part of the first grounding terminal is greater than the width of the first middle part of the first signal terminal and also greater than the width of the first middle part of the second signal terminal; the width of the first contact arm of the first grounding terminal is greater than the width of the first contact arm of the first signal terminal and also greater than the width of the first contact arm of the second signal terminal.

[0011] As a further improved technical solution of the present invention, the first intermediate portion of each first conductive terminal includes a first arc-shaped portion connected to the aforementioned first main body portion and a second extension portion connected to the aforementioned first arc-shaped portion, the aforementioned second extension portion being parallel to the aforementioned first main body portion; the aforementioned first grounding piece includes a second arc-shaped portion connected to the aforementioned first base portion, a second extension portion connected to the aforementioned second arc-shaped portion, and a seventh abutment portion and an eighth abutment portion extending from both sides of the aforementioned second extension portion respectively, wherein the aforementioned second extension portion is parallel to the aforementioned first base portion, the aforementioned seventh abutment portion contacts the second extension portion of the aforementioned first grounding terminal, the aforementioned eighth abutment portion contacts the second extension portion of the aforementioned second grounding terminal, and the aforementioned second extension portion at least partially shields the second extension portion of the aforementioned first signal terminal and the second extension portion of the aforementioned second signal terminal, and does not contact the second extension portion of the aforementioned first signal terminal and the second extension portion of the aforementioned second signal terminal.

[0012] As a further improved technical solution of the embodiment of the present invention, the aforementioned first terminal module includes a first insulating block formed on the aforementioned first conductive terminal and the aforementioned first grounding piece, wherein the first contact arm of the aforementioned first conductive terminal and the first tail of the aforementioned first conductive terminal both extend out of the aforementioned first insulating block.

[0013] The present invention also discloses an electrical connector, comprising: an insulating body, the insulating body including a mating surface, a mating slot extending through the mating surface in a first direction and configured to accommodate a mating module, an assembly surface opposite to the mating surface, and an installation space extending through the assembly surface in the first direction and communicating with the mating slot; and a first terminal module, the first terminal module being as described above, the first terminal module being disposed in the installation space, and a first contact arm of a first conductive terminal of the first terminal module protruding into the mating slot.

[0014] As a further improved technical solution of the embodiment of the present invention, the aforementioned first terminal module includes a first insulating block formed on the aforementioned first conductive terminal and the aforementioned first grounding piece, the first contact arm of the aforementioned first conductive terminal extends out of the aforementioned first insulating block, and the aforementioned first insulating block is provided with a first abutting protrusion; the aforementioned insulating body includes a first sidewall and a second sidewall opposite to the aforementioned first sidewall, wherein the aforementioned mounting space is located between the aforementioned first sidewall and the aforementioned second sidewall; the aforementioned first sidewall is provided with a first spring arm, and the aforementioned first spring arm abuts against the aforementioned first abutting protrusion along the aforementioned first direction.

[0015] As a further improved technical solution of the embodiment of the present invention, the aforementioned first abutting protrusion is provided with a first guiding inclined surface and a first abutting surface; the aforementioned first sidewall is provided with a first opening, the aforementioned first elastic arm extends into the aforementioned first opening in a cantilever shape, the aforementioned first opening includes a first receiving port located at one end of the aforementioned first elastic arm along the aforementioned first direction, the aforementioned first abutting protrusion is at least partially received in the aforementioned first receiving port, the aforementioned first elastic arm is provided with a first abutting end face located at the free end of the aforementioned first elastic arm, the aforementioned first abutting end face abuts against the aforementioned first abutting surface.

[0016] As a further improved technical solution of the embodiment of the present invention, the aforementioned first insulating block is provided with a second abutting protrusion, the aforementioned first abutting protrusion and the aforementioned second abutting protrusion are respectively located on both sides of the aforementioned first insulating block along a second direction, the aforementioned second direction is perpendicular to the aforementioned first direction; the aforementioned second sidewall is provided with a second elastic arm, the aforementioned second elastic arm abuts against the aforementioned second abutting protrusion along the aforementioned first direction.

[0017] As a further improved technical solution of the embodiments of the present invention, the aforementioned first abutting protrusion and the aforementioned second abutting protrusion are symmetrically arranged, and the aforementioned first elastic arm and the aforementioned second elastic arm are symmetrically arranged.

[0018] As a further improved technical solution of the embodiments of the present invention, the aforementioned electrical connector further includes: a second terminal module, the aforementioned second terminal module including: 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 and a fourth ground terminal, wherein the aforementioned third signal terminal and the aforementioned fourth signal terminal are close to each other, and the aforementioned third ground terminal and the aforementioned fourth ground terminal are respectively located on both sides of the aforementioned third signal terminal and the aforementioned fourth signal terminal; each second conductive terminal includes a second intermediate portion, a second contact arm and a second tail portion; and a second grounding plate, the aforementioned second grounding plate being integrally formed, the aforementioned second grounding plate being in contact with the second intermediate portion of the aforementioned third ground terminal and the second intermediate portion of the aforementioned fourth ground terminal; a third terminal module, the aforementioned third terminal module including a plurality of third conductive terminals, each third conductive terminal including a third intermediate portion, a third contact arm and a third tail portion; and a fourth terminal module, the aforementioned fourth terminal module including a plurality of fourth conductive terminals, each fourth conductive terminal including a fourth intermediate portion, a fourth contact arm and a fourth tail portion; The aforementioned second terminal module, the aforementioned third terminal module, and the aforementioned fourth terminal module are all disposed in the aforementioned installation space; the aforementioned second contact arm, the aforementioned third contact arm, and the aforementioned fourth contact arm all protrude into the aforementioned docking slot.

[0019] As a further improved technical solution of the embodiment of the present invention, the aforementioned first contact arm and the aforementioned second contact arm are arranged at intervals along the aforementioned first direction; the aforementioned third contact arm and the aforementioned fourth contact arm are arranged at intervals along the aforementioned first direction; the aforementioned first contact arm and the aforementioned fourth contact arm are respectively located on both sides of the aforementioned docking slot along a third direction, and the aforementioned second contact arm and the aforementioned third contact arm are respectively located on both sides of the aforementioned docking slot along the aforementioned third direction, which is perpendicular to the aforementioned first direction.

[0020] As a further improved technical solution of the embodiments of the present invention, the aforementioned first tail portion, the aforementioned second tail portion, the aforementioned third tail portion and the aforementioned fourth tail portion are arranged at intervals along the aforementioned first direction.

[0021] As a further improved technical solution of the embodiments of the present invention, the aforementioned first terminal module includes a first insulating block formed on the aforementioned first conductive terminal and the aforementioned first grounding plate, the aforementioned second terminal module includes a second insulating block formed on the aforementioned second conductive terminal and the aforementioned second grounding plate, the aforementioned third terminal module includes a third insulating block formed on the aforementioned third conductive terminal, and the aforementioned fourth terminal module includes a fourth insulating block formed on the aforementioned fourth conductive terminal; wherein, the aforementioned fourth terminal module is separately assembled into the aforementioned installation space; the aforementioned first insulating block, the aforementioned second insulating block, and the aforementioned third insulating block are fixed to each other, so that the aforementioned first terminal module, the aforementioned second terminal module, and the aforementioned third terminal module are combined into a whole before being assembled into the aforementioned installation space, and the aforementioned third insulating block abuts against the aforementioned fourth insulating block along the aforementioned first direction.

[0022] Compared to the prior art, the first grounding plate of the present invention is integrally formed. The first grounding plate includes a first base, a first abutting portion and a second abutting portion extending from both sides of the first base, a first inclined portion connected to the first base, and a third abutting portion and a fourth abutting portion extending from both sides of the first inclined portion. The first abutting portion contacts the first main body portion of the first grounding terminal, the second abutting portion contacts the first main body portion of the second grounding terminal, the third abutting portion contacts the first bent portion of the first grounding terminal, and the fourth abutting portion contacts the first bent portion of the second grounding terminal. The first base at least partially covers the first main body portion of the first signal terminal and the first main body portion of the second signal terminal, and does not contact the first main body portion of the first signal terminal and the first main body portion of the second signal terminal; the first inclined portion at least partially covers the first bent portion of the first signal terminal and the first bent portion of the second signal terminal, and does not contact the first bent portion of the first signal terminal and the first bent portion of the second signal terminal. With this configuration, the first grounding piece in this embodiment of the invention can provide a more stable grounding shielding effect, which is beneficial to improving the quality of signal transmission. Simple Explanation of the Diagram

[0023] Figure 1 is a perspective view of the electrical connector of the present invention in one embodiment; Figure 2 is a perspective view of Figure 1 from another angle; Figure 3 is a front view of Figure 1; Figure 4 is a rear view of Figure 1; Figure 5 is a top view of Figure 2; Figure 6 is a right view of Figure 1; Figure 7 is a left view of Figure 1; Figure 8 is a partial exploded perspective view of Figure 1; Figure 9 is a partial exploded perspective view of Figure 8 from another angle; Figure 10 is a right view of the first terminal module, second terminal module, third terminal module, and fourth terminal module in Figure 8 assembled together; Figure 11 is a partial exploded perspective view of the first terminal module, second terminal module, third terminal module, and fourth terminal module in Figure 8; Figure 12 is a partial exploded perspective view of Figure 11 from another angle; Figure 13 is a partial exploded perspective view of the first terminal module in Figure 11; Figure 14 is a partial exploded perspective view of Figure 13 from another angle; Figure 15 is a further exploded perspective view of Figure 13; Figure 16 is an exploded perspective view of Figure 15 from another angle; Figure 17 is a partial exploded perspective view of the second terminal module in Figure 13. Figure 18 is a partial exploded perspective view of Figure 17 from another angle; Figure 19 is a further exploded perspective view of Figure 17; Figure 20 is an exploded perspective view of Figure 19 from another angle; Figure 21 is an exploded perspective view of the third terminal module and the fourth terminal module in Figure 13; Figure 22 is an exploded perspective view of Figure 21 from another angle; Figure 23 is a cross-sectional view along line BB in Figure 6; Figure 24 is a cross-sectional view along line CC in Figure 6; Figure 25 is a cross-sectional view along line DD in Figure 1; and Figure 26 is a cross-sectional view along line EE in Figure 1. Implementation

[0024] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If multiple embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as described in the claims of the present invention.

[0025] 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,” “foreword,” or “the” used in the specification and claims of this invention are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0026] 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 open-ended expressions, 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 including other elements. In this invention, the term "plural" means two or more.

[0027] Referring to Figures 1 to 26, an embodiment of the present invention discloses an electrical connector 100 for inserting and connecting a mating module (not shown), which includes an insulating body 1, a first terminal module M1 disposed on the aforementioned insulating body 1, a second terminal module M2 disposed on the aforementioned insulating body 1, a third terminal module M3 disposed on the aforementioned insulating body 1, and a fourth terminal module M4 disposed on the aforementioned insulating body 1.

[0028] Referring to Figures 1 to 9, in the embodiment of the present invention, the aforementioned insulating body 1 includes a mating surface 11, a mating slot 110 that extends through the mating surface 11 along a first direction A1-A1 (e.g., front-back direction) and is configured to accommodate the aforementioned mating module, an assembly surface 12 opposite to the aforementioned mating surface 11, an installation space 120 that extends through the aforementioned assembly surface 12 along the aforementioned first direction A1-A1 and communicates with the aforementioned mating slot 110, a first sidewall 13 located on one side of the aforementioned installation space 120, and a second sidewall 14 located on the other side of the aforementioned installation space 120 and opposite to the aforementioned first sidewall 13.

[0029] Referring to Figures 1, 2, 6, 7, 23, and 24, in the embodiment of the present invention, the aforementioned first sidewall 13 is provided with a first opening 131 and a first spring arm 132 extending cantileveredly into the aforementioned first opening 131. The aforementioned first opening 131 includes a first receiving port 1311 located at one end of the aforementioned first spring arm 132 along the aforementioned first direction A1-A1. The aforementioned first spring arm 132 is provided with a first abutting end face 1321 located at the free end of the aforementioned first spring arm 132, and the aforementioned first abutting end face 1321 is exposed in the aforementioned first receiving port 1311.

[0030] In the embodiment of the present invention, the aforementioned second sidewall 14 is provided with a second opening 141 and a second spring arm 142 extending cantileveredly into the aforementioned second opening 141. The aforementioned second opening 141 includes a second receiving port 1411 located at one end of the aforementioned second spring arm 142 along the aforementioned first direction A1-A1. The aforementioned second spring arm 142 is provided with a second abutting end face 1421 located at the free end of the aforementioned second spring arm 142, and the aforementioned second abutting end face 1421 is exposed in the aforementioned second receiving port 1411.

[0031] In the embodiments of the present invention, the aforementioned first spring arm 132 and the aforementioned second spring arm 142 are symmetrically arranged.

[0032] Furthermore, the aforementioned first sidewall 13 is also provided with a third opening 133 and a third spring arm 134 extending cantileveredly into the aforementioned third opening 133. The aforementioned third opening 133 includes a third receiving port 1331 located at one end of the aforementioned third spring arm 134 along the aforementioned first direction A1-A1. The aforementioned third spring arm 134 is provided with a third abutting end face 1341 located at the free end of the aforementioned third spring arm 134, and the aforementioned third abutting end face 1341 is exposed in the aforementioned third receiving port 1331.

[0033] The aforementioned second sidewall 14 is also provided with a fourth opening 143 and a fourth spring arm 144 extending cantileveredly into the aforementioned fourth opening 143. The aforementioned fourth opening 143 includes a fourth receiving port 1431 located at one end of the aforementioned fourth spring arm 144 along the aforementioned first direction A1-A1. The aforementioned fourth spring arm 144 is provided with a fourth abutting end face 1441 located at the free end of the aforementioned fourth spring arm 144, and the aforementioned fourth abutting end face 1441 is exposed in the aforementioned fourth receiving port 1431.

[0034] In the embodiment of the present invention, the aforementioned third spring arm 134 and the aforementioned fourth spring arm 144 are symmetrically arranged. The aforementioned first spring arm 132 and the aforementioned third spring arm 134 are staggered along the aforementioned first direction A1-A1 and are located at different heights, and the aforementioned second spring arm 142 and the aforementioned fourth spring arm 144 are staggered along the aforementioned first direction A1-A1 and are located at different heights.

[0035] In the embodiment of the present invention, the aforementioned first elastic arm 132, the aforementioned second elastic arm 142, the aforementioned third elastic arm 134, and the aforementioned fourth elastic arm 144 are integrally formed with the aforementioned insulating body 1. In the embodiment of the present invention, the aforementioned first elastic arm 132, the aforementioned second elastic arm 142, the aforementioned third elastic arm 134, and the aforementioned fourth elastic arm 144 do not protrude outward from the aforementioned insulating body 1 along the aforementioned second direction A2-A2.

[0036] Referring to Figures 8 to 16, the aforementioned first terminal module M1 includes a plurality of first conductive terminals 2a, a first grounding plate 31, and a first insulating block 41 fixed on the first conductive terminals 2a and the first grounding plate 31. In the embodiment of the present invention, the first insulating block 41 is formed on the first conductive terminals 2a and the first grounding plate 31, so that the aforementioned first terminal module M1 is formed as an indivisible whole.

[0037] The aforementioned plurality of first conductive terminals 2a includes a first signal terminal S1, a second signal terminal S2, a first ground terminal G1, and a second ground terminal G2, wherein the aforementioned first signal terminal S1 and the aforementioned second signal terminal S2 are close to each other to form a first differential pair DP1, and the aforementioned first ground terminal G1 and the aforementioned second ground terminal G2 are respectively located on both sides of the aforementioned first differential pair DP1.

[0038] Each first conductive terminal 2a includes a first intermediate portion 2a1, a first contact arm 2a2, and a first tail portion 2a3.

[0039] In the embodiment of the present invention, the aforementioned first intermediate portion 2a1 includes a first main body portion 2a11, a first bent portion 2a12 connected to the aforementioned first main body portion 2a11, a first extension portion 2a13 connected to the aforementioned first bent portion 2a12, a first arcuate portion 2a14 connected to the aforementioned first main body portion 2a11, and a second extension portion 2a15 connected to the aforementioned first arcuate portion 2a14.

[0040] Each first conductive terminal 2a further includes a second bent portion 2a4 connected to the aforementioned first extension 2a13, and the aforementioned first tail portion 2a3 is connected to the aforementioned second bent portion 2a4. The aforementioned first contact arm 2a2 is connected to the aforementioned second extension 2a15.

[0041] In the embodiment of the present invention, the aforementioned first main body portion 2a11, the aforementioned first extension portion 2a13, the aforementioned first tail portion 2a3, and the aforementioned second extension portion 2a15 are all parallel to each other. The aforementioned second bent portion 2a4 is perpendicular to the aforementioned first extension portion 2a13. The aforementioned first bent portion 2a12 is inclined.

[0042] In the embodiment of the present invention, the width of the first intermediate portion 2a1 of the first grounding terminal G1 is greater than the width of the first intermediate portion 2a1 of the first signal terminal S1, and also greater than the width of the first intermediate portion 2a1 of the second signal terminal S2. The width of the first contact arm 2a2 of the first grounding terminal G1 is greater than the width of the first contact arm 2a2 of the first signal terminal S1, and also greater than the width of the first contact arm 2a2 of the second signal terminal S2. This configuration provides better shielding for the first grounding terminal G1 and the second grounding terminal G2, which is beneficial for improving the quality of signal transmission.

[0043] In the embodiment of the present invention, the aforementioned first grounding piece 31 is integrally formed. The aforementioned first grounding piece 31 includes a first base 311, a first abutting portion 311a and a second abutting portion 311b extending from both sides of the aforementioned first base 311, a first inclined portion 312 connected to the aforementioned first base 311, a third abutting portion 312a and a fourth abutting portion 312b extending from both sides of the aforementioned first inclined portion 312, a first extension portion 313 connected to the aforementioned first inclined portion 312, a fifth abutting portion 313a and a sixth abutting portion 313b extending from both sides of the aforementioned first extension portion 313, a second arcuate portion 314 connected to the aforementioned first base 311, a second extension portion 315 connected to the aforementioned second arcuate portion 314, and a seventh abutting portion 315a and an eighth abutting portion 315b extending from both sides of the aforementioned second extension portion 315.

[0044] After the first grounding piece 31 is disposed on the first conductive terminal 2a, the first abutting portion 311a contacts the first main body portion 2a11 of the first grounding terminal G1, the second abutting portion 311b contacts the first main body portion 2a11 of the second grounding terminal G2; the third abutting portion 312a contacts the first bent portion 2a12 of the first grounding terminal G1, the fourth abutting portion 312b contacts the first bent portion 2a12 of the second grounding terminal G2; the fifth abutting portion 313a contacts the first extension portion 2a13 of the first grounding terminal G1, the sixth abutting portion 313b contacts the first extension portion 2a13 of the second grounding terminal G2; the seventh abutting portion 315a contacts the second extension portion 2a15 of the first grounding terminal G1, and the eighth abutting portion 315b contacts the second extension portion 2a15 of the second grounding terminal G2. The aforementioned first base portion 311 at least partially covers the first main body portion 2a11 of the aforementioned first signal terminal S1 and the first main body portion 2a11 of the aforementioned second signal terminal S2, and does not contact the first main body portion 2a11 of the aforementioned first signal terminal S1 and the first main body portion 2a11 of the aforementioned second signal terminal S2; the aforementioned first inclined portion 312 at least partially covers the first bent portion 2a12 of the aforementioned first signal terminal S1 and the first bent portion 2a12 of the aforementioned second signal terminal S2, and does not contact the first bent portion 2a12 of the aforementioned first signal terminal S1 and the first bent portion 2a12 of the aforementioned second signal terminal S2; the aforementioned first extension portion 313 at least partially covers the first extension portion 2a13 of the aforementioned first signal terminal S1 and the first extension portion of the aforementioned second signal terminal S2. 2a13, and does not contact the first extension portion 2a13 of the first signal terminal S1 and the first extension portion 2a13 of the second signal terminal S2; the second arc-shaped portion 314 at least partially covers the first arc-shaped portion 2a14 of the first signal terminal S1 and the first arc-shaped portion 2a14 of the second signal terminal S2, and does not contact the first arc-shaped portion 2a14 of the first signal terminal S1 and the first arc-shaped portion 2a14 of the second signal terminal S2; the second extension portion 315 at least partially covers the second extension portion 2a15 of the first signal terminal S1 and the second extension portion 2a15 of the second signal terminal S2, and does not contact the second extension portion 2a15 of the first signal terminal S1 and the second extension portion 2a15 of the second signal terminal S2.

[0045] Those skilled in the art will understand that the aforementioned first grounding piece 31 is integrally formed and its length is consistent with the length of the first intermediate portion 2a1 of the aforementioned first conductive terminal 2a along the length direction of the aforementioned first conductive terminal 2a, thereby improving the quality of signal transmission.

[0046] The first contact arm 2a2 and the first tail portion 2a3 of the aforementioned first conductive terminal 2a both extend out of the aforementioned first insulating block 41. The aforementioned first contact arm 2a2 protrudes into the aforementioned docking slot 110, and the aforementioned first tail portion 2a3 is configured to be disposed on a circuit board (not shown).

[0047] In the embodiment of the present invention, the aforementioned first insulating block 41 is provided with a first abutting protrusion 411, a second abutting protrusion 412, a third abutting protrusion 413, and a fourth abutting protrusion 414, wherein the aforementioned first abutting protrusion 411 and the aforementioned third abutting protrusion 413 are located on the same side of the aforementioned first insulating block 41, and the aforementioned second abutting protrusion 412 and the aforementioned fourth abutting protrusion 414 are located on the same side of the aforementioned first insulating block 41. The aforementioned first abutting protrusion 411 is provided with a first guiding slope 4111 and a first abutting surface 4112, the aforementioned second abutting protrusion 412 is provided with a second guiding slope 4121 and a second abutting surface 4122, the aforementioned third abutting protrusion 413 is provided with a third guiding slope 4131 and a third abutting surface 4132, and the aforementioned fourth abutting protrusion 414 is provided with a fourth guiding slope 4141 and a fourth abutting surface 4142. In the embodiment of the present invention, the first abutting protrusion 411 and the second abutting protrusion 412 are respectively located on both sides of the first insulating block 41 along the second direction A2-A2 (e.g., left-right direction), and the third abutting protrusion 413 and the fourth abutting protrusion 414 are respectively located on both sides of the first insulating block 41 along the second direction A2-A2. The second direction A2-A2 is perpendicular to the first direction A1-A1. In the embodiment of the present invention, the first abutting protrusion 411 and the second abutting protrusion 412 are symmetrically arranged, and the third abutting protrusion 413 and the fourth abutting protrusion 414 are symmetrically arranged.

[0048] The first abutting protrusion 411 is at least partially housed in the first receiving opening 1311, and the first abutting end face 1321 abuts against the first abutting surface 4112; the second abutting protrusion 412 is at least partially housed in the second receiving opening 1411, and the second abutting end face 1421 abuts against the second abutting surface 4122; the third abutting protrusion 413 is at least partially housed in the third receiving opening 1331, and the third abutting end face 1341 abuts against the third abutting surface 4132; the fourth abutting protrusion 414 is at least partially housed in the fourth receiving opening 1431, and the fourth abutting end face 1441 abuts against the fourth abutting surface 4142; thus, when the first terminal module M1 is assembled in the mounting space 120, the first terminal module M1 can be prevented from falling off the insulating body 1 in a direction opposite to the assembly direction.

[0049] Referring to Figures 17 to 20, the aforementioned second terminal module M2 includes a plurality of second conductive terminals 2b, a second grounding plate 32, and a second insulating block 42 fixed on the aforementioned second conductive terminals 2b and the aforementioned second grounding plate 32. In the embodiment of the present invention, the aforementioned second insulating block 42 is formed on the aforementioned second conductive terminals 2b and the aforementioned second grounding plate 32, so that the aforementioned second terminal module M2 is formed as an indivisible whole.

[0050] The aforementioned plurality of second conductive terminals 2b includes a third signal terminal S3, a fourth signal terminal S4, a third ground terminal G3, and a fourth ground terminal G4, wherein the aforementioned third signal terminal S3 and the aforementioned fourth signal terminal S4 are close to each other to form a second differential pair DP2, and the aforementioned third ground terminal G3 and the aforementioned fourth ground terminal G4 are respectively located on both sides of the aforementioned second differential pair DP2.

[0051] Each second conductive terminal 2b includes a second intermediate portion 2b1, a second contact arm 2b2, and a second tail portion 2b3.

[0052] In the embodiment of the present invention, the aforementioned second intermediate portion 2b1 includes a second main body portion 2b11, a third bent portion 2b12 connected to the aforementioned second main body portion 2b11, and a third extension portion 2b13 connected to the aforementioned third bent portion 2b12.

[0053] Each second conductive terminal 2b further includes a fourth bent portion 2b4 connected to the aforementioned third extension portion 2b13, and the aforementioned second tail portion 2b3 is connected to the aforementioned fourth bent portion 2b4. The aforementioned second contact arm 2b2 is connected to the aforementioned second intermediate portion 2b1.

[0054] In the embodiment of the present invention, the aforementioned second main body portion 2b11, the aforementioned third extension portion 2b13, and the aforementioned second tail portion 2b3 are all parallel to each other. The aforementioned fourth bent portion 2b4 is perpendicular to the aforementioned third extension portion 2b13. The aforementioned third bent portion 2b12 is inclined.

[0055] In the embodiment of the present invention, the width of the second intermediate portion 2b1 of the aforementioned third grounding terminal G3 is greater than the width of the second intermediate portion 2b1 of the aforementioned third signal terminal S3, and also greater than the width of the second intermediate portion 2b1 of the aforementioned fourth signal terminal S4. The width of the second contact arm 2b2 of the aforementioned third grounding terminal G3 is greater than the width of the second contact arm 2b2 of the aforementioned third signal terminal S3, and also greater than the width of the second contact arm 2b2 of the aforementioned fourth signal terminal S4. With this configuration, the aforementioned third grounding terminal G3 and the aforementioned fourth grounding terminal G4 can provide better shielding for the aforementioned third signal terminal S3 and the aforementioned fourth signal terminal S4, which is beneficial for improving the quality of signal transmission.

[0056] In the embodiment of the present invention, the aforementioned second grounding piece 32 is integrally formed, and the aforementioned second grounding piece 32 includes a second base 321, a ninth abutting portion 321a and a tenth abutting portion 321b extending from both sides of the aforementioned second base 321, a second inclined portion 322 connected to the aforementioned second base 321, an eleventh abutting portion 322a and a twelfth abutting portion 322b extending from both sides of the aforementioned second inclined portion 322, a third extension portion 323 connected to the aforementioned second inclined portion 322, and a thirteenth abutting portion 323a and a fourteenth abutting portion 323b extending from both sides of the aforementioned third extension portion 323.

[0057] After the second grounding piece 32 is disposed on the second conductive terminal 2b, the ninth abutment portion 321a contacts the second main body portion 2b11 of the third grounding terminal G3, the tenth abutment portion 321b contacts the second main body portion 2b11 of the fourth grounding terminal G4, the eleventh abutment portion 322a contacts the third bent portion 2b12 of the third grounding terminal G3, the twelfth abutment portion 322b contacts the third bent portion 2b12 of the fourth grounding terminal G4, the thirteenth abutment portion 323a contacts the third extension portion 2b13 of the third grounding terminal G3, and the fourteenth abutment portion 323b contacts the third extension portion 2b13 of the fourth grounding terminal G4. The aforementioned second base portion 321 at least partially covers the second main body portion 2b11 of the aforementioned third signal terminal S3 and the second main body portion 2b11 of the aforementioned fourth signal terminal S4, and does not contact the second main body portion 2b11 of the aforementioned third signal terminal S3 and the second main body portion 2b11 of the aforementioned fourth signal terminal S4; the aforementioned second inclined portion 322 at least partially covers the third bent portion 2b12 of the aforementioned third signal terminal S3 and the third bent portion 2b12 of the aforementioned fourth signal terminal S4, and does not contact the third bent portion 2b12 of the aforementioned third signal terminal S3 and the third bent portion 2b12 of the aforementioned fourth signal terminal S4; the aforementioned third extension portion 323 at least partially covers the third extension portion 2b13 of the aforementioned third signal terminal S3 and the third extension portion 2b13 of the aforementioned fourth signal terminal S4, and does not contact the third extension portion 2b13 of the aforementioned third signal terminal S3 and the third extension portion 2b13 of the aforementioned fourth signal terminal S4.

[0058] Those skilled in the art will understand that the aforementioned second grounding piece 32 is integrally formed and its length is consistent with the length of the second middle portion 2b1 of the aforementioned second conductive terminal 2b along the length direction of the aforementioned second conductive terminal 2b, thereby improving the quality of signal transmission.

[0059] The second contact arm 2b2 and the second tail portion 2b3 of the aforementioned second conductive terminal 2b both extend out of the aforementioned second insulating block 42. The aforementioned second contact arm 2b2 protrudes into the aforementioned mating slot 110, and the aforementioned second tail portion 2b3 is configured to be disposed on a circuit board (not shown).

[0060] Referring to Figures 21 and 22, the aforementioned third terminal module M3 includes a plurality of third conductive terminals 2c and a third insulating block 43 fixed on the aforementioned third conductive terminals 2c. In the embodiment of the present invention, the aforementioned third insulating block 43 is formed on the aforementioned third conductive terminals 2c, so that the aforementioned third terminal module M3 is formed as an indivisible whole. Each third conductive terminal 2c includes a third intermediate portion 2c1, a third contact arm 2c2, and a third tail portion 2c3.

[0061] The aforementioned fourth terminal module M4 includes a plurality of fourth conductive terminals 2d and a fourth insulating block 44 fixed on the aforementioned fourth conductive terminals 2d. In the embodiment of the present invention, the aforementioned fourth insulating block 44 is formed on the aforementioned fourth conductive terminals 2d, so that the aforementioned fourth terminal module M4 is formed as an indivisible whole. Each fourth conductive terminal 2d includes a fourth intermediate portion 2d1, a fourth contact arm 2d2, and a fourth tail portion 2d3.

[0062] In the embodiment of the present invention, the aforementioned fourth terminal module M4 is assembled separately into the aforementioned mounting space 120; the aforementioned first insulating block 41, the aforementioned second insulating block 42, and the aforementioned third insulating block 43 are fixed to each other, so that the aforementioned first terminal module M1, the aforementioned second terminal module M2, and the aforementioned third terminal module M3 are combined into a whole before being assembled into the aforementioned mounting space 120, and the aforementioned third insulating block 43 abuts against the aforementioned fourth insulating block 44 along the aforementioned first direction A1-A1.

[0063] In the embodiments of the present invention, dovetail grooves and dovetail protrusions are respectively provided between the two insulating blocks that cooperate with each other in the aforementioned first insulating block 41, the aforementioned second insulating block 42 and the aforementioned third insulating block 43, to ensure that they do not fall off after assembly.

[0064] The first contact arm 2a2 and the second contact arm 2b2 are arranged at intervals along the first direction A1-A1; the third contact arm 2c2 and the fourth contact arm 2d2 are arranged at intervals along the first direction A1-A1; the first contact arm 2a2 and the fourth contact arm 2d2 are located on both sides of the docking slot 110 along a third direction A3-A3 (e.g., up and down direction), the second contact arm 2b2 and the third contact arm 2c2 are located on both sides of the docking slot 110 along the third direction A3-A3, and the third direction A3-A3 is perpendicular to the first direction A1-A1 and the second direction A2-A2.

[0065] The aforementioned first tail portion 2a3, second tail portion 2b3, third tail portion 2c3, and fourth tail portion 2d3 are arranged at intervals along the aforementioned first direction A1-A1 and configured on the aforementioned circuit board. In the embodiment of the present invention, the aforementioned first tail portion 2a3, second tail portion 2b3, third tail portion 2c3, and fourth tail portion 2d3 are all surface-mount soldered to the aforementioned circuit board.

[0066] 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 foregoing 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 patent application of the present invention.

[0067] 1: Insulating body 100: Electrical connector 11: Mating surface 110: Mating slot 12: Assembly surface 120: Installation space 13: First sidewall 131: First opening 1311: First receiving port 132: First spring arm 1321: First abutting end face 133: Third opening 1331: Third receiving port 134: Third spring arm 1341: Third abutting end face 14: Second sidewall 141: Second opening 1411: Second receiving port 142: Second spring arm 1421: Second abutting end face 143: Fourth opening 1431: Fourth receiving port 144: Fourth spring arm 1441: Fourth abutting end face 2a: First conductive terminal 2a1 : First intermediate portion 2a11: First main body portion 2a12: First bent portion 2a13: First extension portion 2a14: First arc-shaped portion 2a15: Second extension portion 2a2: First contact arm 2a3: First tail portion 2a4: Second bent portion 2b: Second conductive terminal 2b1: Second intermediate portion 2b11: Second main body portion 2b12: Third bent portion 2b13: Third extension portion 2b2: Second contact arm 2b3: Second tail portion 2b4: Fourth bent portion 2c: Third conductive terminal 2c1: Third intermediate portion 2c2: Third contact arm 2c3: Third tail portion 2d: Fourth conductive terminal 2d1: Fourth intermediate portion 2d2: Fourth contact Arm 2d3: Fourth tail portion 31: First grounding plate 311: First base portion 311a: First abutting portion 311b: Second abutting portion 312: First inclined portion 312a: Third abutting portion 312b: Fourth abutting portion 313: First extension portion 313a: Fifth abutting portion 313b: Sixth abutting portion 314: Second arc-shaped portion 315: Second extension portion 315a: Seventh abutting portion 315b: Eighth abutting portion 32: Second grounding plate 321: Second base portion 321a: Ninth abutting portion 321b: Tenth abutting portion 322: Second inclined portion 322a: Eleventh abutting portion 322b: Twelfth abutting portion 323: Third extension portion 323a: Thirteenth abutment part; 323b: Fourteenth abutment part; 41: First insulating block; 411: First abutment protrusion; 4111: First guiding slope; 4112: First abutment surface; 412: Second abutment protrusion; 4121: Second guiding slope; 4122: Second abutment surface; 413: Third abutment protrusion; 4131: Third guiding slope; 4132: Third abutment surface; 414: Fourth abutment protrusion; 4141: Fourth guiding slope; 4142: Fourth abutment surface; 42: Second insulating block; 43: Third insulating block; 44: Fourth insulating block; A1-A1: First direction; A2-A2: Second direction; A3-A3: Third direction; BB, CC, DD.EE: Line DP1: First differential pair DP2: Second differential pair G1: First ground terminal G2: Second ground terminal G3: Third ground terminal G4: Fourth ground terminal M1: First terminal module M2: Second terminal module M3: Third terminal module M4: Fourth terminal module S1: First signal terminal S2: Second signal terminal S3: Third signal terminal S4: Fourth signal terminal

Claims

1. A first terminal module, comprising: A plurality of first conductive terminals, the plurality of first conductive terminals including a first signal terminal, a second signal terminal, a first ground terminal and a second ground terminal, wherein the first signal terminal and the second signal terminal are close to each other, and the first ground terminal and the second ground terminal are respectively located on both sides of the first signal terminal and the second signal terminal; each first conductive terminal includes a first intermediate portion, a first contact arm and a first tail portion; the first intermediate portion includes a first main body portion and a first bent portion connected to the first main body portion; and a first grounding plate, the first grounding plate being integrally formed, the first grounding plate including a first base portion, a first abutting portion and a second abutting portion extending from both sides of the first base portion respectively, a first inclined portion connected to the first base portion, and a third abutting portion and a fourth abutting portion extending from both sides of the first inclined portion respectively; The first abutting portion contacts the first main body portion of the first grounding terminal, the second abutting portion contacts the first main body portion of the second grounding terminal, the third abutting portion contacts the first bent portion of the first grounding terminal, and the fourth abutting portion contacts the first bent portion of the second grounding terminal. The first base portion at least partially covers the first main body portion of the first signal terminal and the first main body portion of the second signal terminal, and does not contact the first main body portion of the first signal terminal and the first main body portion of the second signal terminal. The first inclined portion at least partially covers the first bent portion of the first signal terminal and the first bent portion of the second signal terminal, and does not contact the first bent portion of the first signal terminal and the first bent portion of the second signal terminal.

2. The first terminal module as described in claim 1, wherein: Each first conductive terminal has a first intermediate portion including a first extension portion connected to the aforementioned first bent portion, the aforementioned first extension portion being parallel to the aforementioned first main body portion; the aforementioned first grounding piece includes a first extension portion connected to the aforementioned first inclined portion and a fifth abutment portion and a sixth abutment portion extending from both sides of the aforementioned first extension portion respectively, wherein the aforementioned first extension portion is parallel to the aforementioned first base portion, the aforementioned fifth abutment portion contacts the first extension portion of the aforementioned first grounding terminal, the aforementioned sixth abutment portion contacts the first extension portion of the aforementioned second grounding terminal, the aforementioned first extension portion at least partially shields the first extension portion of the aforementioned first signal terminal and the first extension portion of the aforementioned second signal terminal, and does not contact the first extension portion of the aforementioned first signal terminal and the first extension portion of the aforementioned second signal terminal.

3. The first terminal module as described in claim 2, wherein: Each first conductive terminal includes a second bent portion connected to the aforementioned first extension, the aforementioned first tail portion connected to the aforementioned second bent portion, the aforementioned second bent portion being perpendicular to the aforementioned first extension, and the aforementioned first tail portion being parallel to the aforementioned first extension.

4. The first terminal module as described in claim 1, wherein: The width of the first middle portion of the aforementioned first grounding terminal is greater than the width of the first middle portion of the aforementioned first signal terminal, and also greater than the width of the first middle portion of the aforementioned second signal terminal; the width of the first contact arm of the aforementioned first grounding terminal is greater than the width of the first contact arm of the aforementioned first signal terminal, and also greater than the width of the first contact arm of the aforementioned second signal terminal.

5. The first terminal module as described in claim 2, wherein: Each first conductive terminal has a first intermediate portion including a first arcuate portion connected to the first main body and a second extension portion connected to the first arcuate portion, the second extension portion being parallel to the first main body; the first grounding piece includes a second arcuate portion connected to the first base, a second extension portion connected to the second arcuate portion, and a seventh abutment portion and an eighth abutment portion extending from both sides of the second extension portion, wherein the second extension portion is parallel to the first base, the seventh abutment portion contacts the second extension portion of the first grounding terminal, the eighth abutment portion contacts the second extension portion of the second grounding terminal, and the second extension portion at least partially shields the second extension portion of the first signal terminal and the second extension portion of the second signal terminal, and does not contact the second extension portion of the first signal terminal and the second extension portion of the second signal terminal.

6. The first terminal module as described in claim 1, wherein: The aforementioned first terminal module includes a first insulating block formed on the aforementioned first conductive terminal and the aforementioned first grounding plate, wherein the first contact arm of the aforementioned first conductive terminal and the first tail of the aforementioned first conductive terminal both extend out of the aforementioned first insulating block.

7. An electrical connector, wherein, include: An insulating body, the aforementioned insulating body including a mating surface, a mating slot that extends through the aforementioned mating surface in a first direction and is configured to accommodate a mating module, an assembly surface opposite to the aforementioned mating surface, and an installation space that extends through the aforementioned assembly surface in the aforementioned first direction and is connected to the aforementioned mating slot; and a first terminal module, the aforementioned first terminal module being a first terminal module as described in any one of claims 1 to 5, the aforementioned first terminal module being disposed in the aforementioned installation space, and a first contact arm of a first conductive terminal of the aforementioned first terminal module protruding into the aforementioned mating slot.

8. The electrical connector as claimed in claim 7, wherein: The aforementioned first terminal module includes a first insulating block formed on the aforementioned first conductive terminal and the aforementioned first grounding plate, a first contact arm of the aforementioned first conductive terminal extending out of the aforementioned first insulating block, and the aforementioned first insulating block having a first abutting protrusion; the aforementioned insulating body includes a first sidewall and a second sidewall opposite to the aforementioned first sidewall, wherein the aforementioned mounting space is located between the aforementioned first sidewall and the aforementioned second sidewall; the aforementioned first sidewall has a first spring arm, and the aforementioned first spring arm abuts against the aforementioned first abutting protrusion along the aforementioned first direction.

9. The electrical connector as claimed in claim 8, wherein: The aforementioned first abutting protrusion is provided with a first guiding slope and a first abutting surface; the aforementioned first sidewall is provided with a first opening, the aforementioned first spring arm extends into the aforementioned first opening in a cantilever shape, the aforementioned first opening includes a first receiving opening located at one end of the aforementioned first spring arm along the aforementioned first direction, the aforementioned first abutting protrusion is at least partially received in the aforementioned first receiving opening, the aforementioned first spring arm is provided with a first abutting end face located at the free end of the aforementioned first spring arm, the aforementioned first abutting end face abuts against the aforementioned first abutting surface.

10. The electrical connector as claimed in claim 9, wherein: The aforementioned first insulating block is provided with a second abutting protrusion, and the aforementioned first abutting protrusion and the aforementioned second abutting protrusion are respectively located on both sides of the aforementioned first insulating block along a second direction, and the aforementioned second direction is perpendicular to the aforementioned first direction; the aforementioned second sidewall is provided with a second elastic arm, and the aforementioned second elastic arm abuts against the aforementioned second abutting protrusion along the aforementioned first direction.

11. The electrical connector as claimed in claim 10, wherein: The aforementioned first abutting protrusion and the aforementioned second abutting protrusion are symmetrically arranged, as are the aforementioned first spring arm and the aforementioned second spring arm.

12. The electrical connector as claimed in claim 7, wherein: The aforementioned electrical connector further includes: a second terminal module, the second terminal module comprising: 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, and a fourth ground terminal, wherein the third signal terminal and the fourth signal terminal are close to each other, and the third ground terminal and the fourth ground terminal are respectively located on both sides of the third signal terminal and the fourth signal terminal; each second conductive terminal includes a second intermediate portion, a second contact arm, and a second tail portion; and a second grounding plate, the second grounding plate being integrally formed and contacting the second intermediate portion of the third ground terminal and the second intermediate portion of the fourth ground terminal; a third terminal module, the third terminal module comprising a plurality of third conductive terminals, each third conductive terminal including a third intermediate portion, a third contact arm, and a third tail portion; and a fourth terminal module, the fourth terminal module comprising a plurality of fourth conductive terminals, each fourth conductive terminal including a fourth intermediate portion, a fourth contact arm, and a fourth tail portion; The aforementioned second terminal module, the aforementioned third terminal module, and the aforementioned fourth terminal module are all disposed in the aforementioned installation space; the aforementioned second contact arm, the aforementioned third contact arm, and the aforementioned fourth contact arm all protrude into the aforementioned docking slot.

13. The electrical connector as claimed in claim 12, wherein: The aforementioned first contact arm and the aforementioned second contact arm are arranged at intervals along the aforementioned first direction; the aforementioned third contact arm and the aforementioned fourth contact arm are arranged at intervals along the aforementioned first direction; the aforementioned first contact arm and the aforementioned fourth contact arm are respectively located on both sides of the aforementioned docking slot along a third direction, and the aforementioned second contact arm and the aforementioned third contact arm are respectively located on both sides of the aforementioned docking slot along the aforementioned third direction, which is perpendicular to the aforementioned first direction.

14. The electrical connector as claimed in claim 12, wherein: The aforementioned first tail section, the aforementioned second tail section, the aforementioned third tail section, and the aforementioned fourth tail section are arranged at intervals along the aforementioned first direction.

15. The electrical connector as claimed in claim 12, wherein: The aforementioned first terminal module includes a first insulating block formed on the aforementioned first conductive terminal and the aforementioned first grounding plate; the aforementioned second terminal module includes a second insulating block formed on the aforementioned second conductive terminal and the aforementioned second grounding plate; the aforementioned third terminal module includes a third insulating block formed on the aforementioned third conductive terminal; and the aforementioned fourth terminal module includes a fourth insulating block formed on the aforementioned fourth conductive terminal. The aforementioned fourth terminal module is separately assembled into the aforementioned mounting space. The aforementioned first insulating block, the aforementioned second insulating block, and the aforementioned third insulating block are fixed to each other, so that the aforementioned first terminal module, the aforementioned second terminal module, and the aforementioned third terminal module are combined into a whole before being assembled into the aforementioned mounting space. The aforementioned third insulating block abuts against the aforementioned fourth insulating block along the aforementioned first direction.

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