Electric connector and connector assembly

Abstract

An electric connector comprises a first terminal module and a shielding mounting seat. The first terminal module comprises a first insulating block, a first signal terminal and a second signal terminal. The first signal terminal comprises a first elastic contact arm, and the second signal terminal comprises a second elastic contact arm. The shielding mounting seat comprises a first convex rib and a second convex rib. The first convex rib and the second convex rib are respectively used as a first grounding terminal and a second grounding terminal, and are respectively configured to be directly or indirectly electrically connected with a first grounding conductive sheet and a second grounding conductive sheet on the circuit board. According to the invention, the problem caused by the adoption of an elastic contact arm type grounding terminal in the prior art is solved. The invention further discloses a connector assembly comprising the electric connector.

Description

Background Art

[0002] The electrical connector in the related art usually includes a plurality of conductive terminals, which include a plurality of signal terminal groups, a first ground terminal located on one side of each signal terminal group, and a second ground terminal located on the other side of each signal terminal group. Each signal terminal group usually includes a first signal terminal and a second signal terminal. Usually, the first signal terminal, the second signal terminal, the first ground terminal, and the second ground terminal are all provided with elastic contact arms to achieve electrical connection with the corresponding conductive sheet on the circuit board.

[0003] In order to solve the problem of signal crosstalk, the distance between the first signal terminal and the second signal terminal in each signal terminal group needs to be set larger. When the number of the conductive terminals increases, a larger size space is required, which is not conducive to miniaturization of the electrical connector.

[0004] In addition, in order to improve the shielding effect of each signal terminal group, the width of the first ground terminal and the second ground terminal is being designed to be wider and wider. On the one hand, this design increases the force of the elastic contact arm of the conductive terminal abutting against the circuit board, which can easily lead to poor contact; on the other hand, this design is not conducive to the miniaturization of the electrical connector. Summary of the invention

[0005] The object of the present invention is to provide an electrical connector and a connector assembly which have good shielding effect and are easy to be miniaturized.

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

[0007] A first terminal module, the first terminal module includes a first insulating block and a plurality of first conductive terminals fixed to the first insulating block, the plurality of first conductive terminals have at least one first terminal group, wherein each first terminal group includes a first signal terminal and a second signal terminal, the first signal terminal and the second signal terminal are close to each other and arranged side by side along a first direction; the first signal terminal includes a first elastic contact arm; the second signal terminal includes a second elastic contact arm; and

[0008] A shielding mounting seat, wherein the first terminal module is at least partially mounted on the shielding mounting seat; the shielding mounting seat comprises a mounting surface, a first convex rib exposed to the mounting surface, a second convex rib exposed to the mounting surface, and a first accommodating space between the first convex rib and the second convex rib, wherein the first elastic contact arm of the first signal terminal and the second elastic contact arm of the second signal terminal in the first terminal group at least partially extend into the first accommodating space along a second direction;

[0009] Among them, the first convex rib, the first elastic contact arm of the first signal terminal, the second elastic contact arm of the second signal terminal and the second convex rib are arranged in sequence along the first direction; the first elastic contact arm of the first signal terminal and the second elastic contact arm of the second signal terminal are configured to be directly or indirectly electrically connected to the first signal conductive sheet and the second signal conductive sheet on the circuit board respectively; the first convex rib and the second convex rib serve as the first grounding terminal and the second grounding terminal respectively, and are configured to be directly or indirectly electrically connected to the first grounding conductive sheet and the second grounding conductive sheet on the circuit board respectively.

[0010] As a further improved technical solution of the present invention, the first elastic contact arm of the first signal terminal and the second elastic contact arm of the second signal terminal are configured to be directly or indirectly electrically connected to the first signal conductive sheet and the second signal conductive sheet on the circuit board respectively by elastic abutment;

[0011] The first convex rib and the second convex rib are configured to be directly or indirectly electrically connected to the first grounding conductive sheet and the second grounding conductive sheet on the circuit board respectively by rigid abutment.

[0012] As a further improved technical solution of the present invention, the electrical connector further includes a conductive film, and the conductive film covers the first elastic contact arm, the second elastic contact arm, the first convex rib and the second convex rib;

[0013] The first elastic contact arm of the first signal terminal and the second elastic contact arm of the second signal terminal are configured to be indirectly electrically connected to the first signal conductive sheet and the second signal conductive sheet on the circuit board respectively by elastic abutment;

[0014] The first convex rib and the second convex rib are configured to be indirectly electrically connected to the first grounding conductive sheet and the second grounding conductive sheet on the circuit board respectively by rigid abutment.

[0015] As a further improved technical solution of the present invention, the electrical connector further comprises a mounting plate mounted on the shielding mounting seat, and the conductive film is clamped between the shielding mounting seat and the mounting plate.

[0016] As a further improved technical solution of the present invention, the mounting plate is provided with a hollow groove, and the conductive film is at least partially exposed in the hollow groove.

[0017] As a further improved technical solution of the present invention, the first elastic contact arm is provided with a first contact portion directly or indirectly electrically connected to the first signal conductive sheet, the second elastic contact arm is provided with a second contact portion directly or indirectly electrically connected to the second signal conductive sheet, the first convex rib is provided with a first contact surface directly or indirectly electrically connected to the first ground conductive sheet, the second convex rib is provided with a second contact surface directly or indirectly electrically connected to the second ground conductive sheet, and the first contact surface and the second contact surface are coplanar and both are located in a first plane;

[0018] The first contact portion and the second contact portion protrude from the first plane along the second direction, and the second direction is perpendicular to the first direction; or the first contact portion and the second contact portion are flush with the first plane.

[0019] As a further improved technical solution of the present invention, the shielding mounting seat includes a first mounting groove and a first positioning block protruding into the first mounting groove, the first insulating block is at least partially accommodated in the first mounting groove, and the first insulating block is provided with a first positioning groove that is clamped with the first positioning block.

[0020] As a further improved technical solution of the present invention, the electrical connector further comprises a second terminal module, the second terminal module comprises a second insulating block and a plurality of second conductive terminals fixed to the second insulating block, the plurality of second conductive terminals have at least one second terminal group, wherein each second terminal group comprises a third signal terminal and a fourth signal terminal, the third signal terminal and the fourth signal terminal are close to each other and arranged side by side along the first direction; the third signal terminal comprises a third elastic contact arm; the fourth signal terminal comprises a fourth elastic contact arm;

[0021] The second terminal module is at least partially mounted on the shielding mounting seat; the shielding mounting seat includes a third rib exposed to the mounting surface, a fourth rib exposed to the mounting surface, and a second accommodation space between the third rib and the fourth rib, and the third elastic contact arm of the third signal terminal and the fourth elastic contact arm of the fourth signal terminal in the second terminal group at least partially extend into the second accommodation space along the second direction;

[0022] Among them, the third convex rib, the third elastic contact arm of the third signal terminal, the fourth elastic contact arm of the fourth signal terminal and the fourth convex rib are arranged in sequence along the first direction; the third elastic contact arm of the third signal terminal and the fourth elastic contact arm of the fourth signal terminal are configured to be directly or indirectly electrically connected to the third signal conductive sheet and the fourth signal conductive sheet on the circuit board respectively; the third convex rib and the fourth convex rib serve as the third grounding terminal and the fourth grounding terminal respectively, and are configured to be directly or indirectly electrically connected to the third grounding conductive sheet and the fourth grounding conductive sheet on the circuit board respectively.

[0023] As a further improved technical solution of the present invention, the first convex rib, the first elastic contact arm of the first signal terminal, the second elastic contact arm of the second signal terminal and the second convex rib are sequentially arranged in a first row along the first direction;

[0024] The third rib, the third elastic contact arm of the third signal terminal, the fourth elastic contact arm of the fourth signal terminal and the fourth rib are sequentially arranged in a second row along the first direction;

[0025] The first row and the second row are parallel to each other.

[0026] As a further improved technical solution of the present invention, the first elastic contact arm of the first signal terminal and the second elastic contact arm of the second signal terminal extend along a third direction; the third direction is perpendicular to the first direction and the second direction;

[0027] The third elastic contact arm of the third signal terminal and the fourth elastic contact arm of the fourth signal terminal extend along a fourth direction;

[0028] The third direction is opposite to the fourth direction.

[0029] As a further improved technical solution of the present invention, the first elastic contact arm of the first signal terminal and the third elastic contact arm of the third signal terminal are aligned along the third direction;

[0030] The second elastic contact arm of the second signal terminal is aligned with the fourth elastic contact arm of the fourth signal terminal along the third direction.

[0031] As a further improved technical solution of the present invention, the third elastic contact arm of the third signal terminal and the fourth elastic contact arm of the fourth signal terminal are configured to be directly or indirectly electrically connected to the third signal conductive sheet and the fourth signal conductive sheet on the circuit board respectively by elastic abutment;

[0032] The third convex rib and the fourth convex rib are configured to be directly or indirectly electrically connected to the third grounding conductive sheet and the second grounding conductive sheet on the circuit board respectively by rigid abutment.

[0033] As a further improved technical solution of the present invention, the shielding mounting seat further comprises a connecting beam exposed to the mounting surface, and the connecting beam extends along the first direction;

[0034] The connecting beam connects the first rib and the second rib, and the connecting beam connects the third rib and the fourth rib;

[0035] The first convex rib and the second convex rib are located on one side of the connecting beam; the third convex rib and the fourth convex rib are located on the other side of the connecting beam.

[0036] As a further improved technical solution of the present invention, the first terminal module includes a plurality of first cables and a first grounding plate installed on the first insulating block, the plurality of first cables include a first signal cable, a second signal cable, a first grounding cable and a second grounding cable; the first grounding plate includes a first mounting foot and a second mounting foot;

[0037] The first signal terminal includes a first welding foot, the second signal terminal includes a second welding foot, and the first mounting foot, the first welding foot, the second welding foot and the second mounting foot are arranged in sequence along the first direction;

[0038] The first grounding cable is connected to the first mounting foot, the first signal cable is connected to the first welding foot, the second signal cable is connected to the second welding foot, and the second grounding cable is connected to the second mounting foot;

[0039] The first grounding sheet contacts the shielding mounting seat.

[0040] As a further improved technical solution of the present invention, the second terminal module includes a plurality of second cables and a second grounding plate installed on the second insulating block, the plurality of second cables include a third signal cable, a fourth signal cable, a third grounding cable and a fourth grounding cable; the second grounding plate includes a third mounting foot and a fourth mounting foot;

[0041] The third signal terminal includes a third welding foot, the fourth signal terminal includes a fourth welding foot, and the third mounting foot, the third welding foot, the fourth welding foot and the fourth mounting foot are arranged in sequence along the first direction;

[0042] The third grounding cable is connected to the third mounting foot, the third signal cable is connected to the third welding foot, the fourth signal cable is connected to the fourth welding foot, and the fourth grounding cable is connected to the fourth mounting foot;

[0043] The second grounding plate is in contact with the shielding mounting base and / or the first grounding plate.

[0044] As a further improved technical solution of the present invention, the shielding mounting seat is made of metal and / or conductive plastic.

[0045] The present invention also discloses a connector assembly, which comprises:

[0046] The aforementioned electrical connector; and

[0047] A circuit board, the electrical connector is mounted on the circuit board.

[0048] As a further improved technical solution of the present invention, the circuit board includes a grounding connection portion, and the grounding connection portion connects the first grounding conductive sheet and the second grounding conductive sheet in series into a whole.

[0049] As a further improved technical solution of the present invention, the connector assembly further includes a fastener, which mounts and fixes the shielding mounting seat and the circuit board.

[0050] Compared with the prior art, the shielding mounting seat of the present invention is provided with a first convex rib and a second convex rib, wherein the first convex rib, the first elastic contact arm of the first signal terminal, the second elastic contact arm of the second signal terminal and the second convex rib are arranged in sequence along the first direction; the first convex rib and the second convex rib can provide shielding for the first signal terminal and the second signal terminal located therebetween, thereby improving the quality of signal transmission; in addition, by using the first convex rib and the second convex rib as the first grounding terminal and the second grounding terminal, respectively, and configuring them to be directly or indirectly electrically connected to the first grounding conductive sheet and the second grounding conductive sheet on the circuit board, respectively, many problems caused by the use of elastic contact arm-type grounding terminals in the related art are greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a three-dimensional schematic diagram of the connector assembly of the present invention in the illustrated embodiment of the present invention.

[0052] Figure 2 yes Figure 1 Partial exploded view of the .

[0053] Figure 3 yes Figure 2 A partial enlarged view of the circled portion B.

[0054] Figure 4 yes Figure 2 Partial three-dimensional exploded view from another angle.

[0055] Figure 5 yes Figure 2 Further exploded view.

[0056] Figure 6 yes Figure 5 Exploded three-dimensional image from another angle.

[0057] Figure 7 yes Figure 6 A further exploded perspective view of the electrical connector in FIG.

[0058] Figure 8 yes Figure 7 A partial enlarged view of the circled portion C.

[0059] Fig. 9 Yes Figure 7 Top view of the conductive film and mounting plate.

[0060] Fig.10 yes Fig. 9 A partial enlarged view of the middle frame portion D.

[0061] Fig.11 yes Figure 2 Partial exploded view of the CEC connector.

[0062] Fig.12 yes Fig.11 Partial three-dimensional exploded view from another angle.

[0063] Fig.13 yes Fig.11 Schematic diagram of the center shield mount.

[0064] Fig.14 yes Fig.12 Schematic diagram of the center shield mount.

[0065] Fig.15 It is a three-dimensional schematic diagram of a first terminal module and a second terminal module of an electrical connector.

[0066] Fig.16 yes Fig.15 A partial enlarged view of the circled portion E.

[0067] Fig.17 yes Fig.15 A partial enlarged view of the circled portion F.

[0068] Fig.18 yes Fig.15 A partial three-dimensional schematic diagram of the first terminal module and the second terminal module.

[0069] Fig.19 yes Fig.18 Partial three-dimensional schematic diagram from another angle.

[0070] Fig. 20 It is a three-dimensional exploded view of a plurality of first conductive terminals, a first insulating block and a first grounding plate in the first terminal module.

[0071] Fig.21 yes Fig. 20 Exploded three-dimensional image from another angle.

[0072] Fig. 22 It is a three-dimensional exploded view of a plurality of second conductive terminals, a second insulating block and a second grounding plate in the second terminal module.

[0073] Fig.23 yes Fig. 22 Exploded three-dimensional image from another angle.

[0074] Fig.24 is along Figure 1 Schematic diagram of the cross section of the GG line.

[0075] Fig.25 yes Fig.24 A partial enlarged view of the middle frame portion H. DETAILED DESCRIPTION

[0076] The exemplary embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. If there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; on the contrary, they are only examples of devices, products and / or methods consistent with some aspects of the present invention as recorded in the claims of the present invention.

[0077] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the scope of protection of the present invention. The singular forms "a", "said" or "the" used in the specification and claims of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.

[0078] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the existence of at least one. Unless otherwise specified, words such as "front", "rear", "upper", "lower" and similar words appearing in the present invention are only for the convenience of explanation and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprise" are an open-ended expression, meaning that the elements appearing before "include" or "comprise" include the elements appearing after "include" or "comprise" and their equivalents, which does not exclude that the elements appearing before "include" or "comprise" may also include other elements. If "several" appears in the present invention, it means two or more.

[0079] Please refer to Figures 1 to 4 As shown, the present invention discloses a connector assembly, which includes a circuit board 200 , an electrical connector 100 mounted on the circuit board 200 , and a fastener 300 for mounting and fixing the electrical connector 100 on the circuit board 200 .

[0080] Please combine Figure 2 as well as Figure 3 As shown, in the illustrated embodiment of the present invention, the circuit board 200 includes a plurality of first conductive sheets 201, a plurality of second conductive sheets 202, and a grounding sheet 203. The plurality of first conductive sheets 201 are arranged in a row along a first direction A1-A1 (e.g., left-right direction). The plurality of second conductive sheets 202 are arranged in another row along the first direction A1-A1. The row where the plurality of first conductive sheets 201 are located is parallel to the row where the plurality of second conductive sheets 202 are located.

[0081] The plurality of first conductive sheets 201 are distributed in a plurality of groups, each of which includes a first signal conductive sheet 201a and a second signal conductive sheet 201b. Similarly, the plurality of second conductive sheets 202 are distributed in a plurality of groups, each of which includes a third signal conductive sheet 202a and a fourth signal conductive sheet 202b. In the illustrated embodiment of the present invention, the plurality of first conductive sheets 201 and the plurality of second conductive sheets 202 are aligned one by one along a third direction A3 (e.g., from back to front).

[0082] The grounding sheet 203 includes a grounding connection portion 2030, a plurality of first grounding conductive sheets 2031 extending from a first side of the grounding connection portion 2030 along the third direction A3, a plurality of second grounding conductive sheets 2032 extending from a first side of the grounding connection portion 2030 along the third direction A3, a plurality of third grounding conductive sheets 2033 extending from a second side of the grounding connection portion 2030 along a fourth direction A4 (e.g., from front to rear), and a plurality of fourth grounding conductive sheets 2034 extending from a second side of the grounding connection portion 2030 along the fourth direction A4. The first grounding conductive sheets 2031 and the second grounding conductive sheets 2032 are alternately arranged along the first direction A1-A1. The third grounding conductive sheets 2033 and the fourth grounding conductive sheets 2034 are alternately arranged along the first direction A1-A1. In the illustrated embodiment of the present invention, the plurality of first grounding conductive sheets 2031 and the plurality of third grounding conductive sheets 2033 are aligned one by one along the third direction A3; the plurality of second grounding conductive sheets 2032 and the plurality of fourth grounding conductive sheets 2034 are aligned one by one along the third direction A3. The grounding connection portion 2030 connects the plurality of first grounding conductive sheets 2031, the plurality of second grounding conductive sheets 2032, the plurality of third grounding conductive sheets 2033 and the plurality of fourth grounding conductive sheets 2034 in series into a whole, so as to improve shielding and reduce signal crosstalk.

[0083] In the illustrated embodiment of the present invention, the length of the first ground conductive sheet 2031 along the third direction A3 is greater than the length of the first signal conductive sheet 201a along the third direction A3, and is also greater than the length of the second signal conductive sheet 201b along the third direction A3; the length of the second ground conductive sheet 2032 along the third direction A3 is greater than the length of the first signal conductive sheet 201a along the third direction A3, and is also greater than the length of the second signal conductive sheet 201b along the third direction A3; the length of the third ground conductive sheet 2033 along the fourth direction A4 is greater than the length of the third signal conductive sheet 202a along the fourth direction A4, and is also greater than the length of the fourth signal conductive sheet 202b along the fourth direction A4; the length of the fourth ground conductive sheet 2034 along the fourth direction A4 is greater than the length of the third signal conductive sheet 202a along the fourth direction A4, and is also greater than the length of the fourth signal conductive sheet 202b along the fourth direction A4. Such an arrangement is conducive to improving the quality of signal transmission.

[0084] In the illustrated embodiment of the present invention, the grounding plate 203 further includes mounting areas 2035 located on both sides of the circuit board 200. In each mounting area, the circuit board 200 includes a plurality of first mounting holes 2035a and a positioning hole 2035b penetrating the circuit board 200 along the thickness direction of the circuit board 200.

[0085] In the illustrated embodiment of the present invention, the fasteners 300 are a plurality of bolts.

[0086] The electrical connector 100 includes a shielding mounting seat 3, a first terminal module 1 mounted on the shielding mounting seat 3, a second terminal module 2 mounted on the shielding mounting seat 3, and an outer shell 4 at least partially formed on the first terminal module 1 and the second terminal module 2.

[0087] Please combine Figures 4 to 14 As shown, the shielding mounting seat 3 includes a mounting surface 30 (e.g., a lower surface), a first mounting groove 31 penetrating the shielding mounting seat 3 along the thickness direction of the shielding mounting seat 3, a second mounting groove 32 penetrating the shielding mounting seat 3 along the thickness direction of the shielding mounting seat 3, a plurality of first positioning blocks 33 protruding into the first mounting groove 31 along the third direction A3, and a plurality of second positioning blocks 34 protruding into the second mounting groove 32 along the fourth direction A4. In addition, the shielding mounting seat 3 also includes mounting protrusions 35 located on both sides of the shielding mounting seat 3. Each mounting protrusion 35 is provided with a plurality of second mounting holes 351 penetrating the mounting protrusion 35 along the thickness direction of the shielding mounting seat 3, and a positioning boss 352 protruding downward from the mounting surface 30. The plurality of second mounting holes 351 are aligned with the plurality of first mounting holes 2035a to allow the plurality of bolts to pass through. The positioning boss 352 is inserted into the corresponding positioning hole 2035b.

[0088] In addition, the shielding mounting seat 3 further includes a plurality of first convex ribs 361 exposed to the mounting surface 30, a plurality of second convex ribs 362 exposed to the mounting surface 30, a plurality of third convex ribs 363 exposed to the mounting surface 30, a plurality of fourth convex ribs 364 exposed to the mounting surface 30, and a connecting beam 365 exposed to the mounting surface 30. The connecting beam 365 extends along the first direction A1-A1. The plurality of first convex ribs 361 and the plurality of second convex ribs 362 are integrally extended from the connecting beam 365 along the third direction A3. The plurality of first convex ribs 361 and the plurality of second convex ribs 362 are alternately arranged along the first direction A1-A1. The plurality of third convex ribs 363 and the plurality of fourth convex ribs 364 are integrally extended from the connecting beam 365 along the fourth direction A4. The plurality of third convex ribs 363 and the plurality of fourth convex ribs 364 are alternately arranged along the first direction A1-A1. The first ribs 361 and the second ribs 362 are located on one side of the connecting beam 365; the third ribs 363 and the fourth ribs 364 are located on the other side of the connecting beam 365. In the illustrated embodiment of the present invention, the first ribs 361, the second ribs 362, the third ribs 363 and the fourth ribs 364 are integrally formed with the shielding mounting seat 3. The abutting surfaces (e.g., lower surfaces) of the first ribs 361, the abutting surfaces (e.g., lower surfaces) of the second ribs 362, the abutting surfaces (e.g., lower surfaces) of the third ribs 363 and the abutting surfaces (e.g., lower surfaces) of the fourth ribs 364 are located in the same plane (i.e., coplanar).

[0089] The shielding mounting seat 3 further includes a first accommodating space 371 located between the adjacent first convex rib 361 and the second convex rib 362, and the first accommodating space 371 is substantially U-shaped. Similarly, the shielding mounting seat 3 includes a second accommodating space 372 located between the adjacent third convex rib 363 and the fourth convex rib 364, and the second accommodating space 372 is substantially U-shaped.

[0090] Each first convex rib 361 is provided with a first contact surface 3611 directly or indirectly electrically connected to the first ground conductive sheet 2031, the second convex rib 362 is provided with a second contact surface 3621 directly or indirectly electrically connected to the second ground conductive sheet 2032, the third convex rib 363 is provided with a third contact surface 3631 directly or indirectly electrically connected to the third ground conductive sheet 2033, the fourth convex rib 364 is provided with a fourth contact surface 3641 directly or indirectly electrically connected to the fourth ground conductive sheet 2034, and the connecting beam 365 is provided with a fifth contact surface 3651 directly or indirectly electrically connected to the ground connecting portion 2030. In the illustrated embodiment of the present invention, the first contact surface 3611, the second contact surface 3621, the third contact surface 3631, the fourth contact surface 3641 and the fifth contact surface 3651 are coplanar and are all located in a first plane.

[0091] In the illustrated embodiment of the present invention, the shielding mounting seat 3 is made of metal and / or conductive plastic to improve the shielding effect on the signal terminal and reduce crosstalk.

[0092] The first terminal module 1 includes a first insulating block 11 , a plurality of first conductive terminals 12 fixed to the first insulating block 11 , a first grounding plate 13 installed on the first insulating block 11 , and a plurality of first cables 14 .

[0093] The first insulating block 11 is at least partially received in the first mounting groove 31. The first insulating block 11 is provided with a first positioning groove 111 which is engaged with the first positioning block 33.

[0094] In the illustrated embodiment of the present invention, the plurality of first conductive terminals 12 are embedded in the first insulating block 11. The plurality of first conductive terminals 12 have at least one first terminal group T1, wherein each first terminal group T1 includes a first signal terminal S1 and a second signal terminal S2, and the first signal terminal S1 and the second signal terminal S2 are close to each other and arranged side by side along the first direction A1-A1.

[0095] The first signal terminal S1 includes a first fixing portion 121a fixed in the first insulating block 11, a first elastic contact arm 122a extending from one end of the first fixing portion 121a, and a first welding foot 123a extending from the other end of the first fixing portion 121a. The first welding foot 123a is exposed on the top surface of the first insulating block 11.

[0096] Similarly, the second signal terminal S2 includes a second fixing portion 121b fixed in the first insulating block 11, a second elastic contact arm 122b extending from one end of the second fixing portion 121b, and a second welding foot 123b extending from the other end of the second fixing portion 121b. The second welding foot 123b is exposed on the top surface of the first insulating block 11.

[0097] The first grounding plate 13 is stamped from a metal material. The first grounding plate 13 includes a first base 130, a plurality of first mounting feet 131 extending integrally from one side of the first base 130 along the fourth direction A4, and a plurality of second mounting feet 132 extending integrally from one side of the first base 130 along the fourth direction A4. The plurality of first mounting feet 131 and the plurality of second mounting feet 132 are alternately arranged along the first direction A1-A1. Preferably, the first grounding plate 13 is in contact with the shielding mounting seat 3 to increase the shared grounding area. In the illustrated embodiment of the present invention, the first mounting foot 131, the first welding foot 123a, the second welding foot 123b and the second mounting foot 132 are arranged in sequence along the first direction A-A1.

[0098] The plurality of first cables 14 include a first signal cable 141, a second signal cable 142, a first grounding cable 143, and a second grounding cable 144. The first grounding cable 143 is connected to the first mounting foot 131, the first signal cable 141 is connected to the first welding foot 123a, the second signal cable 142 is connected to the second welding foot 123b, and the second grounding cable 144 is connected to the second mounting foot 132. Preferably, the first grounding cable 143 is welded and fixed to the first mounting foot 131, the first signal cable 141 is welded and fixed to the first welding foot 123a, the second signal cable 142 is welded and fixed to the second welding foot 123b, and the second grounding cable 144 is welded and fixed to the second mounting foot 132.

[0099] The second terminal module 2 includes a second insulating block 21 , a plurality of second conductive terminals 22 fixed to the second insulating block 21 , a second grounding plate 23 installed on the second insulating block 21 , and a plurality of second cables 24 .

[0100] The second insulating block 21 is at least partially received in the second mounting groove 32. The second insulating block 21 is provided with a second positioning groove 211 engaged with the second positioning block 34.

[0101] In the illustrated embodiment of the present invention, the plurality of second conductive terminals 22 are embedded in the second insulating block 21. The plurality of second conductive terminals 22 have at least one second terminal group T2, wherein each second terminal group T2 includes a third signal terminal S3 and a fourth signal terminal S4, and the third signal terminal S3 and the fourth signal terminal S4 are close to each other and arranged side by side along the first direction A1-A1.

[0102] The third signal terminal S3 includes a third fixing portion 221a fixed in the second insulating block 21, a third elastic contact arm 222a extending from one end of the third fixing portion 221a, and a third welding foot 223a extending from the other end of the third fixing portion 221a. The third welding foot 223a is exposed on the top surface of the second insulating block 21.

[0103] Similarly, the fourth signal terminal S4 includes a fourth fixing portion 221b fixed in the second insulating block 21, a fourth elastic contact arm 222b extending from one end of the fourth fixing portion 221b, and a fourth welding foot 223b extending from the other end of the fourth fixing portion 221b. The fourth welding foot 223b is exposed on the top surface of the second insulating block 21.

[0104] The second grounding sheet 23 is stamped from a metal material. The second grounding sheet 23 includes a second base 230, a plurality of third mounting legs 231 extending integrally from one side of the second base 230 along the fourth direction A4, and a plurality of fourth mounting legs 232 extending integrally from one side of the second base 230 along the fourth direction A4. The plurality of third mounting legs 231 and the plurality of fourth mounting legs 232 are alternately arranged along the first direction A1-A1. Preferably, the second grounding sheet 23 is in contact with the shielding mounting seat 3 and / or the first grounding sheet 13 to increase the shared grounding area. In the illustrated embodiment of the present invention, the third mounting leg 231, the third welding leg 223a, the fourth welding leg 223b and the fourth mounting leg 232 are arranged in sequence along the first direction A-A1. In addition, the second grounding sheet 23 also includes a plurality of bent portions 233 formed by bending upward from one side of the second base 230. Along the first direction A1 - A1 , each bending portion 233 is located between a corresponding third mounting foot 231 and a corresponding fourth mounting foot 232 .

[0105] The plurality of second cables 24 include a third signal cable 241, a fourth signal cable 242, a third grounding cable 243, and a fourth grounding cable 244. The third grounding cable 243 is connected to the third mounting foot 231, the third signal cable 241 is connected to the third welding foot 223a, the fourth signal cable 242 is connected to the fourth welding foot 223b, and the fourth grounding cable 244 is connected to the fourth mounting foot 232. Preferably, the third grounding cable 243 is welded and fixed to the third mounting foot 231, the third signal cable 241 is welded and fixed to the third welding foot 223a, the fourth signal cable 242 is welded and fixed to the fourth welding foot 223b, and the fourth grounding cable 244 is welded and fixed to the fourth mounting foot 232.

[0106] When the first terminal module 1 and the second terminal module 2 are mounted on the shielding mounting seat 3, the first elastic contact arm 122a of the first signal terminal S1 and the second elastic contact arm 122b of the second signal terminal S2 in the first terminal group T1 at least partially extend into the first accommodation space 371 along the second direction A2 (e.g., from top to bottom); the third elastic contact arm 222a of the third signal terminal S3 and the fourth elastic contact arm 222b of the fourth signal terminal S4 in the second terminal group T2 at least partially extend into the second accommodation space 372 along the second direction A2. The first direction A1-A1, the second direction A2 and the third direction A3 are perpendicular to each other, and the fourth direction A4 is opposite to the third direction A3.

[0107] The first convex rib 361, the first elastic contact arm 122a of the first signal terminal S1, the second elastic contact arm 122b of the second signal terminal S2 and the second convex rib 362 are arranged in a first row in sequence along the first direction A1-A1; the first elastic contact arm 122a of the first signal terminal S1 and the second elastic contact arm 122b of the second signal terminal S2 are configured to be directly or indirectly electrically connected to the first signal conductive sheet 201a and the second signal conductive sheet 201b on the circuit board 200 respectively; the first convex rib 361 and the second convex rib 362 serve as the first grounding terminal and the second grounding terminal respectively, and are configured to be directly or indirectly electrically connected to the first grounding conductive sheet 2031 and the second grounding conductive sheet 2032 on the circuit board 200 respectively.

[0108] Similarly, the third rib 363, the third elastic contact arm 222a of the third signal terminal S3, the fourth elastic contact arm 222b of the fourth signal terminal S4 and the fourth rib 364 are sequentially arranged in a second row along the first direction A1-A1. The first row and the second row are parallel to each other. The third elastic contact arm 222a of the third signal terminal S3 and the fourth elastic contact arm 222b of the fourth signal terminal S4 are configured to be directly or indirectly electrically connected to the third signal conductive sheet 202a and the fourth signal conductive sheet 202b on the circuit board 200 respectively; the third rib 363 and the fourth rib 364 serve as the third grounding terminal and the fourth grounding terminal respectively, and are configured to be directly or indirectly electrically connected to the third grounding conductive sheet 2033 and the fourth grounding conductive sheet 2034 on the circuit board 200 respectively.

[0109] In the illustrated embodiment of the present invention, the first elastic contact arm 122a of the first signal terminal S1 and the second elastic contact arm 122b of the second signal terminal S2 extend along the third direction A3. The third elastic contact arm 222a of the third signal terminal S3 and the fourth elastic contact arm 222b of the fourth signal terminal S4 extend along the fourth direction A4. The first elastic contact arm 122a of the first signal terminal S1 and the third elastic contact arm 222a of the third signal terminal S3 are aligned along the third direction A3. The second elastic contact arm 122b of the second signal terminal S2 and the fourth elastic contact arm 222b of the fourth signal terminal S4 are aligned along the third direction A3.

[0110] In the illustrated embodiment of the present invention, the first elastic contact arm 122a is provided with a first contact portion 122a1 electrically connected directly or indirectly to the first signal conductive sheet 201a, the second elastic contact arm 122b is provided with a second contact portion 122b1 electrically connected directly or indirectly to the second signal conductive sheet 201b, the third elastic contact arm 222a is provided with a third contact portion 222a1 electrically connected directly or indirectly to the third signal conductive sheet 202a, and the fourth elastic contact arm 222b is provided with a fourth contact portion 222b1 electrically connected directly or indirectly to the fourth signal conductive sheet 202b.

[0111] Compared with the existing design, the first convex rib 361 and the second convex rib 362 of the present invention can respectively function as the first grounding terminal and the second grounding terminal, and the third convex rib 363 and the fourth convex rib 364 of the present invention can respectively function as the third grounding terminal and the fourth grounding terminal. With such a configuration, the grounding terminal does not need to be configured as a structure similar to that of the signal terminal, thereby reducing the number of elastic contact arms, reducing the abutment force with the circuit board 200, and improving the installation reliability of the electrical connector 100.

[0112] In the illustrated embodiment of the present invention, the first elastic contact arm 122a of the first signal terminal S1 and the second elastic contact arm 122b of the second signal terminal S2 are configured to be directly or indirectly electrically connected to the first signal conductive sheet 201a and the second signal conductive sheet 201b on the circuit board 200 respectively by elastic abutment. The first convex rib 361 and the second convex rib 362 are configured to be directly or indirectly electrically connected to the first ground conductive sheet 2031 and the second ground conductive sheet 2032 on the circuit board 200 respectively by rigid abutment.

[0113] Similarly, the third elastic contact arm 222a of the third signal terminal S3 and the fourth elastic contact arm 222b of the fourth signal terminal S4 are configured to be directly or indirectly electrically connected to the third signal conductive sheet 202a and the fourth signal conductive sheet 202b on the circuit board 200 respectively by elastic abutment. The third convex rib 363 and the fourth convex rib 364 are configured to be directly or indirectly electrically connected to the third ground conductive sheet 2033 and the fourth ground conductive sheet 2034 on the circuit board 200 respectively by rigid abutment.

[0114] In the illustrated embodiment of the present invention, the electrical connector 100 further includes a mounting plate 5 mounted on the shielding mounting seat 3 and a conductive film 6 clamped between the shielding mounting seat 3 and the mounting plate 5. The mounting plate 5 is provided with a hollow groove 50, and the conductive film 6 is at least partially exposed in the hollow groove 50. It can be understood by those skilled in the art that the conductive film 6 in the illustrated embodiment of the present invention is in a state (conductive state) after being squeezed by the first convex rib 361, the second convex rib 362, the third convex rib 363, the fourth convex rib 364, the first contact portion 122a1 of the first elastic contact arm 122a, the second contact portion 122b1 of the second elastic contact arm 122b, the third contact portion 222a1 of the third elastic contact arm 222a, and the fourth contact portion 222b1 of the fourth elastic contact arm 222b.

[0115] During assembly, first, the conductive film 6 is mounted on the mounting plate 5 to form an assembly; second, the assembly is mounted to the corresponding position of the circuit board 200; then, the assembled whole part of the electrical connector 100 is mounted on the assembly; finally, the fastener 300 is installed. In one embodiment of the present invention, the conductive film 6 is mounted on the mounting plate 5 by gluing.

[0116] Please combine Figures 7 to 9 As shown, a clearance space 39 is provided between the mounting plate 5 and the shielding mounting seat 3, and the clearance space 39 is used to accommodate the edge of the conductive film 6. In the process of tightening the fastener 300, the conductive film 6 will change from an initial flat state to a convex state in which the middle part convexly extends downward into the hollow groove 50. The thickness of the mounting plate 5 corresponds to the distance of the conductive film 6 being deformed downward, and can also play a certain role in controlling the coplanarity of all components abutting against the conductive film 6.

[0117] In the illustrated embodiment of the present invention, the conductive film 6 covers the first elastic contact arm 122a, the second elastic contact arm 122b, the first convex rib 361 and the second convex rib 362; the conductive film 6 also covers the third elastic contact arm 222a, the fourth elastic contact arm 222b, the third convex rib 363 and the fourth convex rib 364.

[0118] The first elastic contact arm 122a of the first signal terminal S1 and the second elastic contact arm 122b of the second signal terminal S2 are configured to be indirectly electrically connected to the first signal conductive sheet 201a and the second signal conductive sheet 201b on the circuit board 200 respectively by elastic abutment. The first convex rib 361 and the second convex rib 362 are configured to be indirectly electrically connected to the first ground conductive sheet 2031 and the second ground conductive sheet 2032 on the circuit board 200 respectively by rigid abutment.

[0119] Similarly, the third elastic contact arm 222a of the third signal terminal S3 and the fourth elastic contact arm 222b of the fourth signal terminal S4 are configured to be indirectly electrically connected to the third signal conductive sheet 202a and the fourth signal conductive sheet 202b on the circuit board 200 respectively by elastic abutment. The third convex rib 363 and the fourth convex rib 364 are configured to be indirectly electrically connected to the third ground conductive sheet 2033 and the fourth ground conductive sheet 2034 on the circuit board 200 respectively by rigid abutment.

[0120] In the illustrated embodiment of the present invention, the first contact portion 122a1 of the first elastic contact arm 122a, the second contact portion 122b1 of the second elastic contact arm 122b, the third contact portion 222a1 of the third elastic contact arm 222a, and the fourth contact portion 222b1 of the fourth elastic contact arm 222b protrude from the first plane along the second direction A2; or are flush with the first plane.

[0121] The conductive film 6 includes a plurality of conductive particles along its extrusion direction. When the conductive film 6 is not extruded, the plurality of conductive particles are spaced a certain distance from each other, so that the conductive film 6 has no conductive properties. When the conductive film 6 is extruded, the adjacent plurality of conductive particles are close to and in contact with each other, so that the conductive film 6 has conductive properties. The working principle of the conductive film 6 is well known to those skilled in the art, and the present invention will not be described in detail. Those skilled in the art can understand that the thickness of the conductive film 6 is relatively thin, and when the conductive particles are extruded to achieve conductivity, the extrusion force requirement is relatively high.

[0122] Those skilled in the art will understand that if the first elastic contact arm 122a, the second elastic contact arm 122b, the third elastic contact arm 222a and the fourth elastic contact arm 222b in the illustrated embodiment of the present invention are replaced with non-elastic structures, in order to smoothly achieve stable electrical connection with the conductive sheet on the circuit board 200 by means of the conductive film 6, very stringent requirements are imposed on the coplanarity of these non-elastic structures themselves and the coplanarity of the first convex rib 361, the second convex rib 362, the third convex rib 363 and the fourth convex rib 364. Such stringent requirements will greatly increase the difficulty of manufacturing and are not conducive to improving the yield of the product.

[0123] In the illustrated embodiment of the present invention, on the one hand, the first convex rib 361, the second convex rib 362, the third convex rib 363 and the fourth convex rib 364 exert a force on the conductive film 6, which is conducive to ensuring the stability of the force; on the other hand, since the first elastic contact arm 122a, the second elastic contact arm 122b, the third elastic contact arm 222a and the fourth elastic contact arm 222b have a certain elastic deformation ability, they can compensate for the problem that the first contact portion 122a1 of the first elastic contact arm 122a, the second contact portion 122b1 of the second elastic contact arm 122b, the third contact portion 222a1 of the third elastic contact arm 222a and the fourth contact portion 222b1 of the fourth elastic contact arm 222b are not qualified when they abut against the conductive film 6 due to the difference in coplanarity. The hybrid structure of the convex rib and the elastic contact arm adopted in the present invention cleverly solves the problem at the manufacturing end and has outstanding technical effects.

[0124] In addition, compared with the direct contact method, the provision of the conductive film 6 is beneficial for protecting the conductive elements of the circuit board 200, reducing the risk of the conductive elements being scratched, and improving the reliability of the product.

[0125] The above implementation modes are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present invention should be based on the technical personnel in the relevant technical field. Although the present invention has been described in detail in this specification with reference to the above implementation modes, the ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. An electrical connector (100), characterized in that: include: A first terminal module (1), the first terminal module (1) comprising a first insulating block (11) and a plurality of first conductive terminals (12) fixed to the first insulating block (11), the plurality of first conductive terminals (12) having at least one first terminal group (T1), wherein each first terminal group (T1) comprises a first signal terminal (S1) and a second signal terminal (S2), the first signal terminal (S1) and the second signal terminal (S2) being close to each other and arranged side by side along a first direction (A1-A1); the first signal terminal (S1) comprises a first elastic contact arm (122a); the second signal terminal (S2) comprises a second elastic contact arm (122b); and A shielding mounting seat (3), wherein the first terminal module (1) is at least partially mounted on the shielding mounting seat (3); the shielding mounting seat (3) comprises a mounting surface (30), a first convex rib (361) exposed to the mounting surface (30), a second convex rib (362) exposed to the mounting surface (30), and a first accommodating space (371) located between the first convex rib (361) and the second convex rib (362), wherein a first elastic contact arm (122a) of the first signal terminal (S1) and a second elastic contact arm (122b) of the second signal terminal (S2) in the first terminal group (T1) at least partially extend into the first accommodating space (371) along a second direction (A2); The first convex rib (361), the first elastic contact arm (122a) of the first signal terminal (S1), the second elastic contact arm (122b) of the second signal terminal (S2), and the second convex rib (362) are arranged in sequence along the first direction (A1-A1); the first elastic contact arm (122a) of the first signal terminal (S1) and the second elastic contact arm (122b) of the second signal terminal (S2) are configured to be directly or indirectly electrically connected to the first signal conductive sheet (201a) and the second signal conductive sheet (201b) on the circuit board (200), respectively; the first convex rib (361) and the second convex rib (362) serve as the first grounding terminal and the second grounding terminal, respectively, and are configured to be directly or indirectly electrically connected to the first grounding conductive sheet (2031) and the second grounding conductive sheet (2032) on the circuit board (200), respectively.

2. The electrical connector (100) according to claim 1, characterized in that: The first elastic contact arm (122a) of the first signal terminal (S1) and the second elastic contact arm (122b) of the second signal terminal (S2) are configured to be directly or indirectly electrically connected to the first signal conductive sheet (201a) and the second signal conductive sheet (201b) on the circuit board (200) respectively by elastic abutment; The first convex rib (361) and the second convex rib (362) are configured to be directly or indirectly electrically connected to the first grounding conductive sheet (2031) and the second grounding conductive sheet (2032) on the circuit board (200) respectively by means of rigid abutment.

3. The electrical connector (100) according to claim 2, characterized in that: The electrical connector (100) further comprises a conductive film (6), wherein the conductive film (6) covers the first elastic contact arm (122a), the second elastic contact arm (122b), the first convex rib (361) and the second convex rib (362); The first elastic contact arm (122a) of the first signal terminal (S1) and the second elastic contact arm (122b) of the second signal terminal (S2) are configured to be indirectly electrically connected to the first signal conductive sheet (201a) and the second signal conductive sheet (201b) on the circuit board (200) respectively by elastic abutment; The first convex rib (361) and the second convex rib (362) are configured to be indirectly electrically connected to the first grounding conductive sheet (2031) and the second grounding conductive sheet (2032) on the circuit board (200) respectively by means of rigid abutment.

4. The electrical connector (100) according to claim 3, characterized in that: The electrical connector (100) further comprises a mounting plate (5) mounted on the shielding mounting seat (3), and the conductive film (6) is clamped between the shielding mounting seat (3) and the mounting plate (5).

5. The electrical connector (100) according to claim 4, characterized in that: The mounting plate (5) is provided with a hollow groove (50), and the conductive film (6) is at least partially exposed in the hollow groove (50).

6. The electrical connector (100) according to claim 1, characterized in that: The first elastic contact arm (122a) is provided with a first contact portion (122a1) directly or indirectly electrically connected to the first signal conductive sheet (201a), the second elastic contact arm (122b) is provided with a second contact portion (122b1) directly or indirectly electrically connected to the second signal conductive sheet (201b), the first convex rib (361) is provided with a first contact surface (3611) directly or indirectly electrically connected to the first ground conductive sheet (2031), the second convex rib (362) is provided with a second contact surface (3621) directly or indirectly electrically connected to the second ground conductive sheet (2032), the first contact surface (3611) and the second contact surface (3621) are coplanar and both are located in a first plane; Wherein, the first contact portion (122a1) and the second contact portion (122b1) protrude from the first plane along the second direction (A2), and the second direction (A2) is perpendicular to the first direction (A1-A1); or, the first contact portion (122a1) and the second contact portion (122b1) are flush with the first plane.

7. The electrical connector (100) according to claim 1, characterized in that: The shielding mounting seat (3) comprises a first mounting groove (31) and a first positioning block (33) protruding into the first mounting groove (31); the first insulating block (11) is at least partially received in the first mounting groove (31); and the first insulating block (11) is provided with a first positioning groove (111) engaged with the first positioning block (33).

8. The electrical connector (100) according to claim 1, characterized in that: The electrical connector (100) further comprises a second terminal module (2), the second terminal module (2) comprising a second insulating block (21) and a plurality of second conductive terminals (22) fixed to the second insulating block (21), the plurality of second conductive terminals (22) having at least one second terminal group (T2), wherein each second terminal group (T2) comprises a third signal terminal (S3) and a fourth signal terminal (S4), the third signal terminal (S3) and the fourth signal terminal (S4) being close to each other and arranged side by side along the first direction (A1-A1); the third signal terminal (S3) comprises a third elastic contact arm (222a); and the fourth signal terminal (S4) comprises a fourth elastic contact arm (222b); The second terminal module (2) is at least partially mounted on the shielding mounting seat (3); the shielding mounting seat (3) comprises a third convex rib (363) exposed to the mounting surface (30), a fourth convex rib (364) exposed to the mounting surface (30), and a second accommodating space (372) located between the third convex rib (363) and the fourth convex rib (364); the third elastic contact arm (222a) of the third signal terminal (S3) in the second terminal group (T2) and the fourth elastic contact arm (222b) of the fourth signal terminal (S4) at least partially extend into the second accommodating space (372) along the second direction (A2); The third convex rib (363), the third elastic contact arm (222a) of the third signal terminal (S3), the fourth elastic contact arm (222b) of the fourth signal terminal (S4) and the fourth convex rib (364) are arranged in sequence along the first direction (A1-A1); the third elastic contact arm (222a) of the third signal terminal (S3) and the fourth elastic contact arm (222b) of the fourth signal terminal (S4) are configured to be directly or indirectly electrically connected to the third signal conductive sheet (202a) and the fourth signal conductive sheet (202b) on the circuit board (200), respectively; the third convex rib (363) and the fourth convex rib (364) serve as the third grounding terminal and the fourth grounding terminal, respectively, and are configured to be directly or indirectly electrically connected to the third grounding conductive sheet (2033) and the fourth grounding conductive sheet (2034) on the circuit board (200), respectively.

9. The electrical connector (100) according to claim 8, characterized in that: The first convex rib (361), the first elastic contact arm (122a) of the first signal terminal (S1), the second elastic contact arm (122b) of the second signal terminal (S2), and the second convex rib (362) are sequentially arranged in a first row along the first direction (A1-A1); The third convex rib (363), the third elastic contact arm (222a) of the third signal terminal (S3), the fourth elastic contact arm (222b) of the fourth signal terminal (S4), and the fourth convex rib (364) are sequentially arranged in a second row along the first direction (A1-A1); The first row and the second row are parallel to each other.

10. The electrical connector (100) according to claim 8, characterized in that: The first elastic contact arm (122a) of the first signal terminal (S1) and the second elastic contact arm (122b) of the second signal terminal (S2) extend along a third direction (A3); the third direction (A3) is perpendicular to the first direction (A1-A1) and the second direction (A2); The third elastic contact arm (222a) of the third signal terminal (S3) and the fourth elastic contact arm (222b) of the fourth signal terminal (S4) extend along a fourth direction (A4); The third direction (A3) is opposite to the fourth direction (A4).

11. The electrical connector (100) according to claim 10, characterized in that: The first elastic contact arm (122a) of the first signal terminal (S1) and the third elastic contact arm (222a) of the third signal terminal (S3) are aligned along the third direction (A3); The second elastic contact arm (122b) of the second signal terminal (S2) and the fourth elastic contact arm (222b) of the fourth signal terminal (S4) are arranged in alignment along the third direction (A3).

12. The electrical connector (100) according to claim 8, characterized in that: The third elastic contact arm (222a) of the third signal terminal (S3) and the fourth elastic contact arm (222b) of the fourth signal terminal (S4) are configured to be directly or indirectly electrically connected to the third signal conductive sheet (202a) and the fourth signal conductive sheet (202b) on the circuit board (200) respectively by elastic abutment; The third convex rib (363) and the fourth convex rib (364) are configured to be directly or indirectly electrically connected to the third grounding conductive sheet (2033) and the second grounding conductive sheet (2032) on the circuit board (200) respectively by rigid abutment.

13. The electrical connector (100) according to claim 8, characterized in that: The shielding mounting seat (3) further comprises a connecting beam (365) exposed to the mounting surface (30), wherein the connecting beam (365) extends along the first direction (A1-A1); The connecting beam (365) connects the first convex rib (361) and the second convex rib (362), and the connecting beam (365) connects the third convex rib (363) and the fourth convex rib (364); The first convex rib (361) and the second convex rib (362) are located on one side of the connecting beam (365); the third convex rib (363) and the fourth convex rib (364) are located on the other side of the connecting beam (365).

14. The electrical connector (100) according to claim 8, characterized in that: The first terminal module (1) comprises a plurality of first cables (14) and a first grounding plate (13) mounted on the first insulating block (11), wherein the plurality of first cables (14) comprises a first signal cable (141), a second signal cable (142), a first grounding cable (143) and a second grounding cable (144); the first grounding plate (13) comprises a first mounting foot (131) and a second mounting foot (132); The first signal terminal (S1) includes a first welding foot (123a), the second signal terminal (S2) includes a second welding foot (123b), and the first mounting foot (131), the first welding foot (123a), the second welding foot (123b) and the second mounting foot (132) are arranged in sequence along the first direction (A1-A1); The first grounding cable (143) is connected to the first mounting foot (131), the first signal cable (141) is connected to the first welding foot (123a), the second signal cable (142) is connected to the second welding foot (123b), and the second grounding cable (144) is connected to the second mounting foot (132); The first grounding sheet (13) is in contact with the shielding mounting seat (3).

15. The electrical connector (100) according to claim 14, characterized in that: The second terminal module (2) comprises a plurality of second cables (24) and a second grounding plate (23) mounted on the second insulating block (21), the plurality of second cables (24) comprising a third signal cable (241), a fourth signal cable (242), a third grounding cable (243) and a fourth grounding cable (244); the second grounding plate (23) comprises a third mounting foot (231) and a fourth mounting foot (232); The third signal terminal (S3) includes a third welding foot (223a), the fourth signal terminal (S4) includes a fourth welding foot (223b), and the third mounting foot (231), the third welding foot (223a), the fourth welding foot (223b) and the fourth mounting foot (232) are arranged in sequence along the first direction (A1-A1); The third grounding cable (243) is connected to the third mounting foot (231), the third signal cable (241) is connected to the third welding foot (223a), the fourth signal cable (242) is connected to the fourth welding foot (223b), and the fourth grounding cable (244) is connected to the fourth mounting foot (232); The second grounding plate (23) is in contact with the shielding mounting seat (3) and / or the first grounding plate (13).

16. The electrical connector (100) according to claim 1, characterized in that: The shielding mounting seat (3) is made of metal and / or conductive plastic.

17. A connector assembly, characterized in that: include: An electrical connector (100), wherein the electrical connector (100) is the electrical connector (100) according to any one of claims 1 to 16; as well as A circuit board (200), wherein the electrical connector (100) is mounted on the circuit board (200).

18. The connector assembly according to claim 17, wherein: The circuit board (200) comprises a grounding connection portion (2030), wherein the grounding connection portion (2030) connects the first grounding conductive sheet (2031) and the second grounding conductive sheet (2032) in series to form a whole.

19. The connector assembly according to claim 17, wherein: The connector assembly further comprises a fastener (300), wherein the fastener (300) is used to mount and fix the shielding mounting seat (3) and the circuit board (200).

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