Electrical connector

Abstract

An electrical connector includes an insulative body and a first terminal module. The first terminal module includes a plurality of first conductive terminals and a first ground sheet. Each of the first conductive terminals includes a first main body portion and a first resilient arm including a first mating portion. The plurality of first conductive terminals includes a first signal terminal group, a first ground terminal, and a second ground terminal. The first ground sheet includes a first body portion, a first intermediate portion, a first abutting resilient arm, and a second abutting resilient arm. The first ground sheet is provided with a first fixing tab fixed to the first resilient arm of the first ground terminal and a second fixing tab fixed to the first resilient arm of the second ground terminal. The first abutting resilient arm includes a first abutting portion abutting on the first resilient arm of the first ground terminal, and the second abutting resilient arm includes a second abutting portion abutting on the first resilient arm of the second ground terminal.

Description

Technical Field

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

[0002] Electrical connectors in related technologies typically include an insulating body and a terminal module mounted within the insulating body. The terminal module includes an insulating block, a plurality of conductive terminals fixed to the insulating block, and a grounding plate mounted on the insulating block. Each conductive terminal includes a main body and an elastic arm extending out of the insulating block. The plurality of conductive terminals includes a plurality of signal terminals and a plurality of ground terminals. The grounding plate has an overlapping portion that contacts the ground terminals to connect all the ground terminals in series, thereby providing better grounding shielding.

[0003] However, as electrical connectors continue to improve signal transmission quality, there is still room for improvement in the grounding shielding of related technologies. Utility Model Content

[0004] The purpose of this invention is to provide an electrical connector with better grounding shielding effect.

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

[0006] An insulating body, the insulating body including a mating surface and a mating slot extending through the mating surface in a first direction; and

[0007] A first terminal module, the first terminal module includes a plurality of first conductive terminals and a first grounding plate, each first conductive terminal includes a first main body and a first elastic arm extending from the first main body, the first elastic arm including a first mating portion protruding into the mating slot.

[0008] The plurality of first conductive terminals include a first signal terminal group, a first ground terminal located on one side of the first signal terminal group along a second direction, and a second ground terminal located on the other side of the first signal terminal group along the second direction; the first signal terminal group includes a first signal terminal and a second signal terminal;

[0009] The first grounding plate includes a first body portion, a first intermediate portion connected to the first body portion, a first abutting spring arm connected to the first intermediate portion, and a second abutting spring arm connected to the first intermediate portion; the first body portion includes a first overlapping portion that contacts the first main body portion of the first grounding terminal, a second overlapping portion that contacts the first main body portion of the second grounding terminal, and a first clearance portion connecting the first overlapping portion and the second overlapping portion, the first clearance portion being configured to avoid contact with the first signal terminal group; the first grounding plate is provided with a first fixing protrusion fixed to the first elastic arm of the first grounding terminal and a second fixing protrusion fixed to the first elastic arm of the second grounding terminal; the first abutting spring arm of the first grounding plate includes a first abutting portion abutting against the first elastic arm of the first grounding terminal; the second abutting spring arm of the first grounding plate includes a second abutting portion abutting against the first elastic arm of the second grounding terminal.

[0010] As a further improvement of the present invention, both the first fixing tab and the second fixing tab are integrally extended from the first middle portion.

[0011] As a further improvement of the present invention, both the first fixing protrusion and the second fixing protrusion are L-shaped.

[0012] The first fixing tab includes a first bent portion bent from the first middle portion and a first welding tab extending from the first bent portion. The first welding tab is welded and fixed to the first elastic arm of the first grounding terminal.

[0013] The second fixing tab includes a second bent portion bent from the first middle portion and a second welding tab extending from the second bent portion. The second welding tab is welded and fixed to the first elastic arm of the second grounding terminal.

[0014] As a further improvement of the present invention, both the first welding tab and the second welding tab extend along the first direction.

[0015] As a further improvement of the present invention, the first grounding piece includes a first connecting rod connecting the end of the first abutting spring arm and the end of the second abutting spring arm.

[0016] As a further improvement of this utility model, the first connecting rod is tilted away from the first signal terminal group.

[0017] As a further improvement of the present invention, the first abutting spring arm and the first fixing protrusion are respectively located on both sides of the first middle part;

[0018] The second abutting spring arm and the second fixing protrusion are located on both sides of the first middle part, respectively.

[0019] As a further improvement of the present invention, the first terminal module includes a first insulating block, and the plurality of first conductive terminals are fixed to the first insulating block. The first insulating block is provided with a first mounting groove for mounting the first grounding piece. The first insulating block is provided with a first protrusion extending through the first grounding piece along a third direction and a second protrusion extending through the first grounding piece along the third direction. The first protrusion and the second protrusion are spaced apart along a second direction. The first protrusion is provided with a first receiving recess and the second protrusion is provided with a second receiving recess.

[0020] The first elastic arm of each first conductive terminal extends out of the first insulating block; the first welding tab of the first fixing tab is received in the first receiving recess and welded to the root of the first elastic arm of the first grounding terminal; the second welding tab of the second fixing tab is received in the second receiving recess and welded to the root of the first elastic arm of the second grounding terminal.

[0021] As a further improvement of the present invention, the electrical connector further includes a second terminal module, the second terminal module including a second insulating block, a plurality of second conductive terminals fixed to the second insulating block, and a second grounding plate, each second conductive terminal including a second main body and a second elastic arm extending from the second main body, the second elastic arm including a second mating portion protruding into the mating slot;

[0022] The first insulating block and the second insulating block are provided with a first locking hook and a second locking hook that interlock with each other along the third direction.

[0023] As a further improvement of the present invention, the first insulating block is provided with a first positioning protrusion extending along the first direction, and the second insulating block is provided with a second positioning protrusion extending along the first direction, and the first positioning protrusion and the second positioning protrusion are aligned along the first direction.

[0024] The insulating body is provided with a first positioning groove, and the first positioning protrusion and the second positioning protrusion are inserted into the first positioning groove together.

[0025] Compared to existing technologies, the first grounding plate of this invention includes a first intermediate portion, a first abutting spring arm, and a second abutting spring arm. The first grounding plate is provided with a first fixing protrusion fixed to the first elastic arm of the first grounding terminal and a second fixing protrusion fixed to the first elastic arm of the second grounding terminal. The first abutting spring arm includes a first abutting portion abutting against the first elastic arm of the first grounding terminal; the second abutting spring arm includes a second abutting portion abutting against the first elastic arm of the second grounding terminal. This configuration forms a double contact point between the first grounding plate and the first elastic arm of the first grounding terminal, and between the first grounding plate and the first elastic arm of the second grounding terminal, improving the grounding shielding effect of the electrical connector and reducing crosstalk. Furthermore, by fixing the first fixing protrusion and the second fixing protrusion to the first elastic arm of the first grounding terminal and the first elastic arm of the second grounding terminal respectively, the risk of contact failure of the first fixing protrusion and the second fixing protrusion when the first abutting spring arm deforms is avoided, further improving the grounding shielding effect of the electrical connector. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the electrical connector of this utility model in one embodiment;

[0027] Figure 2 yes Figure 1 A three-dimensional diagram from another angle;

[0028] Figure 3 yes Figure 1 Partial exploded 3D diagram;

[0029] Figure 4 yes Figure 3 A magnified view of part B circled in the middle;

[0030] Figure 5 yes Figure 3 A partial 3D diagram from another angle;

[0031] Figure 6 yes Figure 3 Further partial exploded view;

[0032] Figure 7 yes Figure 6 Another perspective of a partially exploded 3D view;

[0033] Figure 8 yes Figure 6 Partial exploded perspective view of the first terminal module and the second terminal module;

[0034] Figure 9 yes Figure 8Another perspective of a partially exploded 3D view;

[0035] Figure 10 yes Figure 8 3D exploded view of the first terminal module;

[0036] Figure 11 yes Figure 10 Another perspective of the exploded 3D view;

[0037] Figure 12 yes Figure 8 3D exploded view of the second terminal module;

[0038] Figure 13 yes Figure 12 Another perspective of the exploded 3D view;

[0039] Figure 14 This is a top view of the first terminal module and the second terminal module assembled together;

[0040] Figure 15 This is a side view of the first terminal module and the second terminal module assembled together;

[0041] Figure 16 It is along Figure 1 A cross-sectional view of the CC line. Detailed Implementation

[0042] 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.

[0043] 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” used in the specification and claims of this invention are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0044] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish the 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 utility model 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" covers the element following "comprising" or "including" and its equivalents, which does not exclude that the element preceding "comprising" or "including" may also include other elements. In this utility model, the word "several" means two or more.

[0045] Please refer to Figures 1 to 16 As shown, this utility model discloses an electrical connector 100 configured to be mounted on a circuit board and mate with a mating module (e.g., a mating connector). The electrical connector 100 includes an insulating body 3, a first terminal module 1 mounted on the insulating body 3, a second terminal module 2 mounted on the insulating body 3, an abutment plate 4 mounted on the insulating body 3, and a first mounting piece 51 and a second mounting piece 52 fixed to the insulating body 3. In the embodiment illustrated in this utility model, the first terminal module 1 and the second terminal module 2 are first assembled into a single unit, and then the entire unit is mounted on the insulating body 3. The abutment plate 4 abuts against the rear ends of the first terminal module 1 and the second terminal module 2 to prevent loosening of the first terminal module 1 and the second terminal module 2. The first mounting piece 51 and the second mounting piece 52 are used to fix the electrical connector 100 to the circuit board.

[0046] Please combine Figure 3 as well as Figure 5As shown in the illustrated embodiment of this utility model, the insulating body 3 includes a mating surface 31, a mounting surface 36 opposite to the mating surface 31, a mating slot 310 extending forward through the mating surface 31 along a first direction A-A1 (e.g., a front-to-back direction), a mounting space 360 ​​extending rearward through the mounting surface 36 along the first direction A-A1, a top wall 32, a bottom wall 33, a first side wall 34, and a second side wall 35. The mating slot 310 is formed by the top wall 32, the bottom wall 33, the first side wall 34, and the second side wall 35. The mating slot 310 is used to at least partially accommodate the tongue plate of the mating connector. The mounting space 360 ​​communicates with the mating slot 310. The mounting space 360 ​​is used to mount the first terminal module 1, the second terminal module 2, and at least a portion of the abutment plate 4.

[0047] In the embodiment illustrated in this utility model, the top wall 32 is stepped, and a plurality of retaining grooves 321 are provided at the rear end of the top wall 32. The retaining grooves 321 extend upward through the top wall 32 along a third direction A3-A3 (e.g., vertical direction). The first side wall 34 is provided with a first positioning groove 341 on its inner wall, and the first positioning groove 341 communicates with the mounting space 360. The second side wall 35 is provided with a second positioning groove 351 on its inner wall, and the second positioning groove 351 communicates with the mounting space 360. Both the first positioning groove 341 and the second positioning groove 351 extend along the first direction A1-A1 and both extend rearward through the mounting surface 36.

[0048] Please combine Figures 8 to 11 As shown, the first terminal module 1 includes a first insulating block 13, a plurality of first conductive terminals 11 fixed to the first insulating block 13, and a first grounding plate 12 mounted on the first insulating block 13. Each first conductive terminal 11 includes a first main body portion 111, a first elastic arm 112 extending from the first main body portion 111, and a first tail portion 113 extending from the first main body portion 111. The first elastic arm 112 includes a first mating portion 1121 protruding into the mating slot 310. The first tail portion 113 is used for mounting on the circuit board.

[0049] In one embodiment of this utility model, the plurality of first conductive terminals 11 are embedded in the first insulating block 13. Of course, those skilled in the art will understand that the plurality of first conductive terminals 11 can also be fixed to the first insulating block 13 by assembly or other means. The first insulating block 13 is provided with a first mounting groove 131, and the first main body portion 111 of the first conductive terminal 11 is partially exposed in the first mounting groove 131. The first mounting groove 131 is used to mount the first grounding piece 12.

[0050] The plurality of first conductive terminals 11 include a first signal terminal group DP1, a first ground terminal G1 located on one side of the first signal terminal group DP1 along a second direction A2-A2 (e.g., a left-right direction), and a second ground terminal G2 located on the other side of the first signal terminal group DP1 along the second direction A2-A2. The first direction A1-A1, the second direction A2-A2, and the third direction A3-A3 are all perpendicular to each other. The first signal terminal group DP1 includes a first signal terminal S1 and a second signal terminal S2. In the embodiment illustrated in this utility model, the first signal terminal S1 and the second signal terminal S2 form a differential pair.

[0051] The first grounding plate 12 includes a first body portion 121, a first intermediate portion 122 connected to the first body portion 121, a plurality of first abutting spring arms 123 connected to the first intermediate portion 122, a plurality of second abutting spring arms 124 connected to the first intermediate portion 122, and a first connecting rod 125 connecting the ends of the first abutting spring arms 123 and the ends of the second abutting spring arms 124.

[0052] The first body portion 121 is generally wavy and includes a first overlapping portion 1211 that contacts the first body portion 111 of the first grounding terminal G1, a second overlapping portion 1212 that contacts the first body portion 111 of the second grounding terminal G2, and a first clearance portion 1213 that connects the first overlapping portion 1211 and the second overlapping portion 1212. The first clearance portion 1213 is raised upward and is configured to avoid contact with the first signal terminal group DP1 to prevent short circuit.

[0053] The first grounding plate 12 is provided with a first fixing protrusion 1221 fixed to the first elastic arm 112 of the first grounding terminal G1 and a second fixing protrusion 1222 fixed to the first elastic arm 112 of the second grounding terminal G2. In the embodiment illustrated in this utility model, both the first fixing protrusion 1221 and the second fixing protrusion 1222 extend integrally from the first middle portion 122. Specifically, both the first fixing protrusion 1221 and the second fixing protrusion 1222 are L-shaped. The first fixing protrusion 1221 includes a first bent portion 1221a bent from the first middle portion 122 and a first welding protrusion 1221b extending from the first bent portion 1221a. The first welding protrusion 1221b is welded and fixed to the first elastic arm 112 of the first grounding terminal G1. Similarly, the second fixing protrusion 1222 includes a second bent portion 1222a bent from the first middle portion 122 and a second welding protrusion 1222b extending from the second bent portion 1222a. The second welding tab 1222b is welded and fixed to the first elastic arm 112 of the second grounding terminal G2. Both the first welding tab 1221b and the second welding tab 1222b extend along the first direction A1-A1, so that the first welding tab 1221b and the second welding tab 1222b have sufficient length to improve welding reliability.

[0054] The first abutting spring arm 123 of the first grounding plate 12 includes a first abutting portion 1231 that abuts against the first elastic arm 112 of the first grounding terminal G1. The second abutting spring arm 124 of the first grounding plate 12 includes a second abutting portion 1241 that abuts against the first elastic arm 112 of the second grounding terminal G2. The first abutting portion 1231 and the first fixing protrusion 1221 are spaced apart along the first direction A1-A1, and the second abutting portion 1241 and the second fixing protrusion 1222 are spaced apart along the first direction A1-A1.

[0055] In the illustrated embodiment of this utility model, along the first direction A1-A1, the first abutting portion 1231 is located between the first mating portion 1121 and the first fixing protrusion 1221 of the first grounding terminal G1. Similarly, along the first direction A1-A1, the second abutting portion 1241 is located between the first mating portion 1121 and the second fixing protrusion 1222 of the second grounding terminal G2.

[0056] In the embodiment illustrated in this utility model, the first abutment spring arm 123 and the first fixing protrusion 1221 are respectively located on both sides of the first middle portion 122. The second abutment spring arm 124 and the second fixing protrusion 1222 are respectively located on both sides of the first middle portion 122. By fixing the first fixing protrusion 1221 and the second fixing protrusion 1222 to the first elastic arm 112 of the first grounding terminal G1 and the first elastic arm 112 of the second grounding terminal G2, this utility model avoids the risk of contact failure of the first fixing protrusion 1221 and the second fixing protrusion 1222 when the first abutment spring arm 123 and the second abutment spring arm 124 are deformed, thus improving the grounding shielding effect of the electrical connector 100.

[0057] In the embodiment illustrated in this utility model, the first connecting rod 125 is tilted away from the first signal terminal group DP1 to avoid contact with the first signal terminal group DP1. By providing the first connecting rod 125, this utility model helps to shorten the return path and improve the quality of signal transmission.

[0058] The first elastic arm 112 of each first conductive terminal 11 extends forward and protrudes from the first insulating block 13. The first fixing tab 1221 abuts against the root of the first elastic arm 112 of the first grounding terminal G1 to minimize the impact on the elasticity of the first elastic arm 112 of the first grounding terminal G1; the second fixing tab 1222 abuts against the root of the first elastic arm 112 of the second grounding terminal G2 to minimize the impact on the elasticity of the first elastic arm 112 of the second grounding terminal G2.

[0059] Furthermore, in the embodiment illustrated in this utility model, the first insulating block 13 is further provided with a first protrusion 132 extending through the first grounding piece 12 along the third direction A3-A3 and a second protrusion 133 extending through the first grounding piece 12 along the third direction A3-A3. The first protrusion 132 and the second protrusion 133 are spaced apart along the second direction A2-A2. The first protrusion 132 is provided with a first receiving recess 1321, and the second protrusion 133 is provided with a second receiving recess 1331. The first insulating block 13 is also provided with a first locking hook portion 134 and a first positioning protrusion 135 extending along the first direction A1-A1.

[0060] The first welding tab 1221b of the first fixing tab 1221 is received in the first receiving recess 1321 and welded to the root of the first elastic arm 112 of the first grounding terminal G1; the second welding tab 1222b of the second fixing tab 1222 is received in the second receiving recess 1331 and welded to the root of the first elastic arm 112 of the second grounding terminal G2.

[0061] Please combine Figure 12 as well as Figure 13 As shown, the second terminal module 2 includes a second insulating block 23, a plurality of second conductive terminals 21 fixed to the second insulating block 23, and a second grounding plate 22 mounted on the second insulating block 23. Each second conductive terminal 21 includes a second main body portion 211, a second elastic arm 212 extending from the second main body portion 211, and a second tail portion 213 extending from the second main body portion 211. The second elastic arm 212 includes a second mating portion 2121 protruding into the mating slot 310. The second tail portion 213 is used for mounting on the circuit board.

[0062] In the embodiment illustrated in this utility model, the second insulating block 23 is provided with a second locking hook portion 234 and a second positioning protrusion 235 extending along the first direction A1-A1. When the first terminal module 1 and the second terminal module 2 are assembled together, the first locking hook portion 134 of the first insulating block 13 and the second locking hook portion 234 of the second insulating block 23 are locked together along the third direction A3-A3, so that the first terminal module 1 and the second terminal module 2 are assembled into a whole. At this time, the first positioning protrusion 135 and the second positioning protrusion 235 are aligned along the first direction A1-A1. When the first terminal module 1 and the second terminal module 2 are inserted into the mounting space 360 ​​as a whole, the first positioning protrusion 135 and the second positioning protrusion 235 are inserted together into the first positioning groove 341 to prevent the first terminal module 1 and the second terminal module 2 from separating.

[0063] The abutment plate 4 is provided with a retaining protrusion 41 that is fixed in the retaining groove 321 and a locking spring arm 42 for locking with the insulating body 3. When the abutment plate 4 is installed on the insulating body 3, the abutment plate 4 can be fixed to the insulating body 3.

[0064] Compared to the prior art, the first grounding plate 12 of this utility model includes a first intermediate portion 122, a first abutting spring arm 123, and a second abutting spring arm 124. The first grounding plate 12 is provided with a first fixing protrusion 1221 fixed to the first elastic arm 112 of the first grounding terminal G1 and a second fixing protrusion 1222 fixed to the first elastic arm 112 of the second grounding terminal G2. The first abutting spring arm 123 includes a first abutting portion 1231 abutting against the first elastic arm 112 of the first grounding terminal G1. The second abutting spring arm 124 includes a second abutting portion 1241 abutting against the first elastic arm 112 of the second grounding terminal G2. With this configuration, the first grounding plate 12 and the first elastic arm 112 of the first grounding terminal G1 form a double contact, and the first grounding plate 12 and the first elastic arm 112 of the second grounding terminal G2 form a double contact, which improves the grounding shielding effect of the electrical connector 100 and reduces crosstalk. In addition, by fixing the first fixing tab 1221 and the second fixing tab 1222 to the first elastic arm 112 of the first grounding terminal G1 and the first elastic arm 112 of the second grounding terminal G2 respectively, this utility model avoids the risk of contact failure of the first fixing tab 1221 and the second fixing tab 1222 when the first abutting elastic arm 123 and the second abutting elastic arm 124 are deformed, thereby improving the grounding shielding effect of the electrical connector 100.

[0065] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of the present utility model should be based on those skilled in the art. Although the present utility model 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 utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. An electrical connector, characterized in that, include: An insulating body, the insulating body including a mating surface and a mating slot extending through the mating surface in a first direction; and A first terminal module, the first terminal module includes a plurality of first conductive terminals and a first grounding plate, each first conductive terminal includes a first main body and a first elastic arm extending from the first main body, the first elastic arm including a first mating portion protruding into the mating slot. The plurality of first conductive terminals include a first signal terminal group, a first ground terminal located on one side of the first signal terminal group along a second direction, and a second ground terminal located on the other side of the first signal terminal group along the second direction; the first signal terminal group includes a first signal terminal and a second signal terminal; The first grounding plate includes a first body portion, a first intermediate portion connected to the first body portion, a first abutting spring arm connected to the first intermediate portion, and a second abutting spring arm connected to the first intermediate portion; the first body portion includes a first overlapping portion that contacts the first main body portion of the first grounding terminal, a second overlapping portion that contacts the first main body portion of the second grounding terminal, and a first clearance portion connecting the first overlapping portion and the second overlapping portion, the first clearance portion being configured to avoid contact with the first signal terminal group; the first grounding plate is provided with a first fixing protrusion fixed to the first elastic arm of the first grounding terminal and a second fixing protrusion fixed to the first elastic arm of the second grounding terminal; the first abutting spring arm of the first grounding plate includes a first abutting portion abutting against the first elastic arm of the first grounding terminal; the second abutting spring arm of the first grounding plate includes a second abutting portion abutting against the first elastic arm of the second grounding terminal.

2. The electrical connector as described in claim 1, characterized in that: Both the first fixing tab and the second fixing tab are integrally extended from the first middle portion.

3. The electrical connector as described in claim 2, characterized in that: Both the first fixing tab and the second fixing tab are L-shaped; The first fixing tab includes a first bent portion bent from the first middle portion and a first welding tab extending from the first bent portion. The first welding tab is welded and fixed to the first elastic arm of the first grounding terminal. The second fixing tab includes a second bent portion bent from the first middle portion and a second welding tab extending from the second bent portion. The second welding tab is welded and fixed to the first elastic arm of the second grounding terminal.

4. The electrical connector as described in claim 3, characterized in that: Both the first welding tab and the second welding tab extend along the first direction.

5. The electrical connector as described in claim 1, characterized in that: The first grounding plate includes a first connecting rod that connects the end of the first abutment arm and the end of the second abutment arm.

6. The electrical connector as described in claim 5, characterized in that: The first connecting rod tilts away from the first signal terminal group.

7. The electrical connector as claimed in claim 1, characterized in that: The first abutting spring arm and the first fixing protrusion are respectively located on both sides of the first middle part; The second abutting spring arm and the second fixing protrusion are located on both sides of the first middle part, respectively.

8. The electrical connector as claimed in claim 3, characterized in that: The first terminal module includes a first insulating block, and a plurality of first conductive terminals are fixed to the first insulating block. The first insulating block is provided with a first mounting groove for mounting the first grounding piece. The first insulating block is provided with a first protrusion extending through the first grounding piece along a third direction and a second protrusion extending through the first grounding piece along the third direction. The first protrusion and the second protrusion are spaced apart along a second direction. The first protrusion is provided with a first receiving recess and the second protrusion is provided with a second receiving recess. The first elastic arm of each first conductive terminal extends out of the first insulating block; the first welding tab of the first fixing tab is received in the first receiving recess and welded to the root of the first elastic arm of the first grounding terminal; the second welding tab of the second fixing tab is received in the second receiving recess and welded to the root of the first elastic arm of the second grounding terminal.

9. The electrical connector as claimed in claim 8, characterized in that: The electrical connector further includes a second terminal module, which includes a second insulating block, a plurality of second conductive terminals fixed to the second insulating block, and a second grounding plate. Each second conductive terminal includes a second main body and a second elastic arm extending from the second main body. The second elastic arm includes a second mating portion protruding into the mating slot. The first insulating block and the second insulating block are provided with a first locking hook and a second locking hook that interlock with each other along the third direction.

10. The electrical connector as claimed in claim 9, characterized in that: The first insulating block is provided with a first positioning protrusion extending along the first direction, and the second insulating block is provided with a second positioning protrusion extending along the first direction. The first positioning protrusion and the second positioning protrusion are aligned along the first direction. The insulating body is provided with a first positioning groove, and the first positioning protrusion and the second positioning protrusion are inserted into the first positioning groove together.

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