Electrical connector

Abstract

An electrical connector includes an insulating body, a first terminal module mounted to the insulating body, the first terminal module including a plurality of pairs of first signal terminals and a plurality of first ground terminals, the first ground terminals including a first main body portion, a first mating portion extending from one end of the first main body portion, and a first tail portion extending from another end of the first main body portion, the first tail portions of the plurality of first ground terminals being connected together by a first connecting portion; and a first shielding sheet including a first shielding portion and a first extending portion connected to the first shielding portion, the first main body portion being at least partially in contact with the first shielding portion, and the first connecting portion being at least partially in contact with the first extending portion. In this way, crosstalk interference between signals transmitted by adjacent pairs of the first signal terminals is reduced.

Description

Technical Field

[0001] This invention 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, several conductive terminals, and a shielding plate. Each conductive terminal includes a body portion, a mating portion extending from the body portion, and a tail portion extending from the body portion. The several conductive terminals typically include signal terminals and ground terminals. The shielding plate contacts the body portion of the ground terminal to improve shielding effectiveness. However, for high-density electrical connectors used in high-frequency transmission, the number of terminals is large and densely distributed, and the distance between adjacent terminals is close. When high-frequency electronic signals pass through, the crosstalk between adjacent terminals is relatively large, resulting in unstable signal transmission. Summary of the Invention

[0003] The purpose of this invention is to provide an electrical connector that can reduce crosstalk interference.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An electrical connector, comprising:

[0006] Insulating body; and

[0007] A first terminal module is mounted on the insulating body. The first terminal module includes a plurality of first conductive terminals, which include a plurality of pairs of first signal terminals and a plurality of first ground terminals. Each pair of first signal terminals and each first ground terminal are arranged alternately. Each first ground terminal includes a first main body, a first mating portion extending from one end of the first main body, and a first tail portion extending from the other end of the first main body. The first tail portions of the plurality of first ground terminals are connected together by a first connecting portion.

[0008] The first shielding sheet includes a first shielding portion and a first extension portion connected to the first shielding portion. The first main body portion is at least partially in contact with the first shielding portion, and the first connecting portion is at least partially in contact with the first extension portion.

[0009] The first cable includes a first signal conductor and a first ground conductor. The first ground conductor is connected to the first tail end, and the first signal conductor is connected to the first signal terminal. The first ground conductor and the first shield are located on different sides of the thickness direction of the first grounding terminal.

[0010] As a further improvement of the present invention, the first connecting portion includes a first flat plate portion and a plurality of first bent portions extending from the first flat plate portion, the plurality of first bent portions being connected to the plurality of first tail portions, and the first flat plate portion being in contact with the first extending portion.

[0011] As a further improved technical solution of the present invention, the first extension portion includes a first extension body and a first contact portion, the first flat plate portion is welded and fixed to the first contact portion, the first extension body is connected to the first shielding portion, and the first extension body is not in contact with the first grounding terminal.

[0012] As a further improved technical solution of the present invention, the first flat plate portion and the first tail portion are located at different heights, and the first bent portion and the first flat plate portion form a first space, which is configured to accommodate the first cable.

[0013] As a further improvement of the present invention, the first shielding part and the first extension part are integrally formed.

[0014] As a further improvement of the present invention, the first shielding part includes a plurality of first abutting parts and a plurality of first bridging parts, each of the first bridging parts is connected to two first abutting parts on both sides, and the first main body part is at least partially in contact with the first abutting parts.

[0015] As a further improved technical solution of the present invention, the first bridging portion includes a first straight portion and a first inclined portion connected to both sides of the first straight portion. The first straight portion includes a first surface facing away from the first signal terminal, and the first extension portion includes a second surface facing away from the first ground terminal. The first surface and the second surface are in the same plane.

[0016] As a further improved technical solution of the present invention, the first extension is provided with a plurality of first protrusions, the first protrusions protruding from the second surface, and along the thickness direction of the first extension, the first protrusions and the first signal terminal have a first distance, the first distance being not less than 0.67mm.

[0017] As a further improvement of the present invention, the first terminal module includes a first insulating block, the plurality of first conductive terminals are fixed to the first insulating block, the insulating body has a receiving groove, and the first insulating block is installed in the receiving groove;

[0018] The first insulating block includes a plurality of first positioning parts, and the first extension is provided with a plurality of first openings, with the first positioning parts installed in the first openings.

[0019] As a further improvement of the present invention, the electrical connector includes a second terminal module installed on the insulating body, a second shielding plate cooperating with the second terminal module, and a second cable connected to the second terminal module;

[0020] The second terminal module includes a plurality of second conductive terminals, wherein the plurality of second conductive terminals include a plurality of pairs of second signal terminals and a plurality of second ground terminals, and each pair of second signal terminals and each second ground terminal are arranged alternately;

[0021] The second cable includes a second signal conductor and a second ground conductor. The second ground conductor is connected to the second grounding terminal, and the second signal conductor is connected to the second signal terminal. The second ground conductor and the second shield are located on different sides of the thickness direction of the second grounding terminal.

[0022] The first shielding sheet and the second shielding sheet are located between the plurality of first conductive terminals and the plurality of second conductive terminals.

[0023] The present invention uses the first connecting part to connect the plurality of first grounding terminals together, the first shielding part to contact the first main body part of the first grounding terminal, and the first extension part to contact the first connecting part, thereby realizing that the first shielding sheet and the two areas of the first grounding terminal are in contact, which can form a good shield for the first signal terminal, reduce crosstalk interference between signals transmitted by adjacent pairs of first signal terminals, and thus maintain the effectiveness of signal transmission. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the electrical connector of the present invention;

[0025] Figure 2 yes Figure 1 A schematic diagram of the decomposition process;

[0026] Figure 3 yes Figure 2 A partial component breakdown diagram;

[0027] Figure 4 yes Figure 1 A three-dimensional diagram from another angle;

[0028] Figure 5 yes Figure 4 A schematic diagram of the decomposition process;

[0029] Figure 6 yes Figure 5 A partial component breakdown diagram;

[0030] Figure 7 yes Figure 2A cross-sectional view of the middle component along line AA;

[0031] Figure 8 yes Figure 2 Top view of the middle components;

[0032] Figure 9 yes Figure 8 A cross-sectional view along line BB;

[0033] Figure 10 yes Figure 9 Enlarged view of region A in the middle;

[0034] Figure 11 yes Figure 3 A three-dimensional schematic diagram of the first terminal module and the second terminal module;

[0035] Figure 12 yes Figure 11 The right view;

[0036] Figure 13 yes Figure 11 A three-dimensional schematic diagram of the middle component;

[0037] Figure 14 yes Figure 13 The right view;

[0038] Figure 15 yes Figure 13 Enlarged view of region B in the middle;

[0039] Figure 16 yes Figure 13 A three-dimensional schematic diagram of the middle component;

[0040] Figure 17 yes Figure 16 A schematic diagram of the decomposition process;

[0041] Figure 18 yes Figure 13 A three-dimensional schematic diagram of the first terminal module and the first shielding plate;

[0042] Figure 19 yes Figure 13 A three-dimensional diagram from another angle;

[0043] Figure 20 yes Figure 19 Enlarged diagram of region C in the middle;

[0044] Figure 21 yes Figure 19 A three-dimensional schematic diagram of the middle component;

[0045] Figure 22 yes Figure 21 A schematic diagram of the decomposition process;

[0046] Figure 23 yes Figure 19 A three-dimensional schematic diagram of the second terminal module and the second shielding plate;

[0047] Figure 24 yes Figure 11 Top view of the middle components;

[0048] Figure 25 yes Figure 24 A cross-sectional view along line CC;

[0049] Figure 26 yes Figure 25 Enlarged schematic diagram of region D in the middle;

[0050] Figure 27 yes Figure 24 The right view;

[0051] Figure 28 yes Figure 24 A schematic diagram of the cross-section along DD. Detailed Implementation

[0052] 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.

[0053] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” as used in the specification and claims of this invention are also intended to include the plural forms unless the context clearly indicates otherwise.

[0054] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this invention are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" encompasses the element following "comprising" or "including" and its equivalents, but this does not preclude the element preceding "comprising" or "including" from also including other elements. In this invention, the term "several" means two or more.

[0055] Please refer to Figures 1 to 27 As shown, the present invention discloses an electrical connector 100 configured to mate with a mating connector (not shown), the mating connector being at least partially inserted into the electrical connector 100 along the mating direction M.

[0056] See Figure 3 and Figure 7 The electrical connector 100 includes an insulating body 1, a first terminal module 2 mounted on the insulating body 1, a first shielding plate 3 cooperating with the first terminal module 2, a first cable 4 connected to the first terminal module 2, a second terminal module 5 mounted on the insulating body 1, a second shielding plate 6 cooperating with the second terminal module 5, and a second cable 7 connected to the second terminal module 5.

[0057] In the embodiment illustrated in the present invention, the electrical connector 100 is a cable connector. Of course, those skilled in the art will understand that in other embodiments, the electrical connector 100 may also be a board-end connector, i.e., the electrical connector 100 is used to mount onto a circuit board (not shown). In this case, the electrical connector 100 may not have the first cable 4 and the second cable 7.

[0058] See Figure 3 and Figure 7 The insulating body 1 has a mating slot 110. The insulating body 1 includes a mating surface 10a, which is located at the front end of the insulating body 1, and the mating slot 110 penetrates the mating surface 10a. See also... Figure 6The insulating body 1 has a receiving groove 120. The insulating body 1 includes a mounting surface 10b, which is located at the rear end of the insulating body 1. The receiving groove 120 passes through the mounting surface 10b and is connected to the docking slot 110.

[0059] Specifically, see Figure 3 and Figure 6 The insulating body 1 includes a top wall portion 11, a bottom wall portion 12 opposite to the top wall portion 11, a first side wall portion 13 connecting one end of the top wall portion 11 and one end of the bottom wall portion 12, and a second side wall portion 14 connecting the other end of the top wall portion 11 and the other end of the bottom wall portion 12. The top wall portion 11, the bottom wall portion 12, the first side wall portion 13, and the second side wall portion 14 form a receiving space 1001. See also Figure 7 The receiving space 1001 includes a first inner plate 15, and the receiving groove 120 and the docking slot 110 are located on different sides of the thickness direction of the first inner plate 15. The insulating body 1 also includes a second inner plate 16 extending from the first inner plate 15 to the receiving groove 120, and the second inner plate 16 is perpendicular to the first inner plate 15. The first terminal module 2 and the second terminal module 5 are both installed in the receiving groove 120, and the first terminal module 2 and the second terminal module 5 are located on different sides of the thickness direction of the second inner plate 16. The first cable 4 and the second cable 7 both extend into the receiving groove 120. The thickness direction of the second inner plate 16 is parallel to the height direction HH of the insulating body 1, and the thickness direction of the first inner plate 15 is parallel to the length direction LL of the insulating body 1. There is a first gap 101 between the first inner plate 15 and the top wall portion 11, and a second gap 102 between the first inner plate 15 and the bottom wall portion 12. The first gap 101 facilitates the assembly of the first terminal module 2 onto the insulating body 1, and the second gap 102 facilitates the assembly of the second terminal module 5 onto the insulating body 1.

[0060] See Figure 11 The first terminal module 2 includes a first insulating block 21 and a plurality of first conductive terminals 22 fixed to the first insulating block 21. In the embodiment illustrated in the present invention, the first conductive terminals 22 are embedded in the first insulating block 21. Of course, in other embodiments, the first conductive terminals 22 can also be fixed to the first insulating block 21 by assembly or other means.

[0061] The first insulating block 21 is installed in the receiving groove 120, and the first insulating block 21 is installed between the top wall portion 11 and the second inner plate 16. Specifically, as shown... Figure 11 , Figure 12 and Figure 16 As shown, the first insulating block 21 includes a first front end face 211, a first rear end face 212, a first top face 213, a first bottom face 214, and two first side faces 215. The first front end face 211 contacts the surface of the first inner plate 15, and the first bottom face 214 contacts the surface of the second inner plate 16. The first inner plate 15 is used to axially limit the first insulating block 21, and the second inner plate 16 is used to radially limit the first insulating block 21.

[0062] See Figure 6 and Figure 9 The first insulating block 21 includes two first protrusions 2151 extending outward from the two first side surfaces 215. The first side wall portion 13 of the insulating body 1 is provided with a first slot 130, which is recessed from the inner surface of the first side wall portion 13; the second side wall portion 14 of the insulating body 1 is provided with a second slot 140, which is recessed from the inner surface of the second side wall portion 14. Both the first slot 130 and the second slot 140 communicate with the receiving groove 120. One of the first protrusions 2151 is installed in the first slot 130, and the other first protrusion 2151 is installed in the second slot 140, thereby achieving the positioning and installation of the first insulating block 21 with the insulating body 1.

[0063] See Figure 7 and Figure 17 The first insulating block 21 has a first mounting groove 210, which is recessed inward relative to the first bottom surface 214. The first shielding plate 3 is mounted in the first mounting groove 210. After the first insulating block 21 is assembled with the insulating body 1, the first shielding plate 3 is located between the first insulating block 21 and the second inner plate 16. (See also...) Figure 17 The first mounting groove 210 is surrounded by a first frame structure 211a, which includes a first side frame 212a and a second side frame 213a opposite to the first side frame 212a. The second side frame 213a has a plurality of first openings 214a, which divide the second side frame 213a into a plurality of first positioning portions 215a. The first shielding plate 3 has a plurality of first through-holes 320, and the first positioning portions 215a are installed in the first through-holes 320, thereby realizing the positioning and installation of the first shielding plate 3 and the first insulating block 21.

[0064] like Figure 11As shown, the plurality of first conductive terminals 22 include a plurality of pairs of first signal terminals S1 and a plurality of first ground terminals G1, with each pair of first signal terminals S1 and each first ground terminal G1 arranged alternately. In the embodiment illustrated in the present invention, each pair of first signal terminals S1 is provided with a first ground terminal G1 on both sides. This arrangement is beneficial for providing better shielding for each pair of first signal terminals S1, thereby improving the quality of signal transmission. Preferably, each pair of first signal terminals S1 is used to transmit differential pair signals, and each pair of first signal terminals S1 forms a differential signal terminal pair.

[0065] See Figure 14 The first grounding terminal G1 includes a first main body 2221, a first mating portion 2222 extending from one end of the first main body 2221, and a first tail portion 2223 extending from the other end of the first main body 2221. The first mating portion 2222 extends into the mating slot 110. The first mating portion 2222 is configured to mate with the mating connector. The first tail portions 2223 of the plurality of first grounding terminals G1 are connected together by a first connecting portion 223. The present invention bridges the plurality of first grounding terminals G1 together through the first connecting portion 223, thereby achieving electrical connection between the plurality of first grounding terminals G1, reducing resonance generated within the plurality of first grounding terminals G1, and thus improving signal integrity. In the embodiment illustrated in the present invention, the first terminal module 2 includes ten first grounding terminals G1, each of the ten first grounding terminals G1 including ten first tail portions 2223, and the first connecting portion 223 connects the ten first tail portions 2223 together. In the embodiment illustrated in the present invention, the material used for the first connecting portion 223 is the same as the material used for the first grounding terminal G1.

[0066] The first main body portion 2221 is embedded and formed into the first insulating block 21. See also Figure 11 The first insulating block 21 is provided with a plurality of first through holes 201, the first through holes 201 penetrating the first top surface 213 and the first bottom surface 214. The first main body portion 2221 is at least partially exposed through the first through holes 201. See also Figure 10 The first main body 2221 has a first width W1, and two first vertical hole walls 2011 are formed within the first through hole 201. A first distance D1 exists between the two first vertical hole walls 2011. The value of the first width W1 is not greater than the value of the first distance D1, thereby allowing the first main body 2221 to be more fully exposed within the first through hole 201. In the embodiment illustrated in the present invention, the value of the first width W1 is equal to the value of the first distance D1.

[0067] like Figure 18 As shown, the first insulating block 21 includes a first tongue portion 216, which extends from the first rear end face 212. The first tongue portion 216 includes a first extending surface 2161 and a second extending surface 2162 located on opposite sides of its thickness direction. The first tail portion 2223 is exposed on the first extending surface 2161, and the first cable 4 is connected to the first tail portion 2223 exposed on the first extending surface 2161, thereby realizing the electrical connection between the first cable 4 and the first grounding terminal G1.

[0068] See Figure 13 The first signal terminal S1 includes a second body portion 2211, a second mating portion 2212 extending from one end of the second body portion 2211, and a second tail portion 2213 extending from the other end of the second body portion 2211. The second mating portion 2212 extends into the mating slot 110. The second mating portion 2212 is configured to mate with the mating connector.

[0069] The second main body portion 2211 is embedded in the first insulating block 21. The second tail portion 2213 is exposed on the first extension surface 2161, and the first cable 4 is connected to the second tail portion 2213 exposed on the first extension surface 2161, thereby realizing the electrical connection between the first cable 4 and the first signal terminal S1. See the illustrated embodiment of the present invention. Figure 18 The plurality of first tail portions 2223 and the plurality of second tail portions 2213 are arranged in a row along the width direction of the first tongue portion 216, and the width direction of the first tongue portion 216 is parallel to the width direction WW of the insulating body 1.

[0070] See Figure 14 The first connecting portion 223 includes a first flat plate portion 2231 and a plurality of first bent portions 2232 extending from the first flat plate portion 2231, the plurality of first bent portions 2232 being connected to the plurality of first tail portions 2223. The first flat plate portion 2231 and the first tail portions 2223 are parallel, and the first flat plate portion 2231 and the first tail portions 2223 are located at different heights. See also Figure 27 A first height difference H0 exists between the first flat plate portion 2231 and the first tail portion 2223. Specifically, as shown... Figure 18 As shown, the first tail portion 2223 has a first outer surface 222a, the first flat plate portion 2231 has a second outer surface 223a, and the first height difference H0 is the vertical distance between the first outer surface 222a and the second outer surface 223a. Figure 27As shown, the first space 2230 between the first bent portion 2232 and the first flat portion 2231 is configured to accommodate the first cable 4. This configuration avoids interference with the installation of the first cable 4.

[0071] See Figure 11 The first terminal module 2 includes a second insulating block 23, in which at least a portion of the plurality of first tail portions 223, the first connecting portion 223, and the first cable 4 are embedded. The second insulating block 23 is integrally formed with the first insulating block 21 by injection molding. The second insulating block 23 has second protrusions 231 on both sides, one of which is installed in the first slot 130, and the other is installed in the second slot 140, thereby achieving the positioning and installation of the second insulating block 23 and the insulating body 1.

[0072] like Figure 14 As shown, the first shielding sheet 3 includes a first shielding portion 31 and a first extension portion 32 connected to the first shielding portion 31. The first main body portion 2221 is at least partially in contact with the first shielding portion 31, and the first connecting portion 223 is at least partially in contact with the first extension portion 32. Specifically, the first flat plate portion 2231 is in contact with the first extension portion 32. By having the first shielding sheet 3 in contact with two areas of the first grounding terminal G1, good shielding can be formed for the first signal terminal S1, reducing crosstalk interference between signals transmitted by adjacent pairs of first signal terminals S1.

[0073] The first shielding portion 31 and the first extension portion 32 are integrally formed. See also Figure 10 The first shielding portion 31 includes a plurality of first abutting portions 311 and a plurality of first bridging portions 312, each of the first bridging portions 312 being connected to two first abutting portions 311 on both sides. The first main body portion 2221 is at least partially in contact with the first abutting portions 311. The first abutting portions 311 are not in contact with the first signal terminal S1, and the first bridging portions 312 are not in contact with the first signal terminal S1 to prevent short circuits.

[0074] In the embodiment illustrated in the present invention, the first through hole 201 communicates with the first mounting groove 210, and the first abutting part 311 protrudes into the first through hole 201 and contacts the first main body part 2221.

[0075] In some embodiments, the first abutting portion 311 is welded to the surface (e.g., the lower surface) of the first main body portion 2221, and the first extension portion 32 is welded to the surface (e.g., the lower surface) of the first flat plate portion 2231.

[0076] like Figure 10 As shown, the first bridging portion 312 includes a first straight portion 3121 and first inclined portions 3122 connected to both sides of the first straight portion 3121. The first abutting portion 311 connects the two first inclined portions 3122. Two first inclined hole walls 2012 are formed within the first through hole 201, and the first inclined hole walls 2012 are connected to the first vertical hole wall 2011. The first through hole 201 includes a first straight hole 201a with a uniform inner diameter and a first flared hole 201b with a gradually changing inner diameter, and the first straight hole 201a communicates with the first flared hole 201b. The two first vertical hole walls 2011 are located around the first straight hole 201a, and the two first inclined hole walls 2012 are located around the first flared hole 201b. Specifically, the inner diameter of the first flared hole 201b gradually increases outward from the first straight hole 201a. In the illustrated embodiment of the present invention, a portion of the first main body portion 2221 is located in the first straight hole 201a, and another portion of the first main body portion 2221 extends into the first flared hole 201b. The first abutting portion 311 is connected to the first main body portion 2221 located in the first flared hole 201b. The two first inclined hole walls 2012 are adapted to the two first inclined portions 3122.

[0077] See Figure 17 and Figure 27 The first straight portion 3121 includes a first surface 312a facing away from the first signal terminal S1, and the first extension portion 32 includes a second surface 32a facing away from the first ground terminal G1. In the embodiment illustrated in the present invention, the first shielding sheet 3 is made from the same piece of metal, and the first surface 312a and the second surface 32a are in the same plane. This facilitates manufacturing and shaping, and also does not increase the overall height of the first shielding sheet 3, reducing its volume.

[0078] See Figure 17 The first extension 32 is at least partially embedded in the second insulating block 23. The first extension 32 has a plurality of first protrusions 321, which protrude from the second surface 32a. By providing the plurality of first protrusions 321 in the first extension 32, the holding force between the first shielding sheet 3 and the second insulating block 23 is improved when it is embedded in the second insulating block 23, and the impedance value is also improved. See also Figure 26Along the thickness direction of the first extension 32, a first gap H1 is formed between the first protrusion 321 and the first signal terminal S1, and the first gap H1 is not less than 0.67 mm. Specifically, the first protrusion 321 has a third surface 3210, and the first signal terminal S1 has a fourth surface 2210, which is the inner surface of the second tail portion 2213. The first gap H1 is the distance between the third surface 3210 and the fourth surface 2210 along the thickness direction of the first extension 32. In the embodiment illustrated in the present invention, the first gap H1 is 0.67 mm. The thickness direction of the first extension 32 is parallel to the height direction HH of the insulating body 1.

[0079] See Figure 28 The first straight portion 3121 and the second main body portion 2211 have a second distance H2. The value of the first height difference H0 is less than the value of the first distance H1, and the value of the second distance H2 is less than the value of the first height difference H0. Specifically, the first straight portion 3121 includes a first surface 312a and a first inner surface 312b located on opposite sides of its thickness. The second distance H2 is the vertical distance between the first inner surface 312b and the second inner surface 221a of the second main body portion 2211. The second inner surface 221a and the fourth surface 2210 of the first signal terminal S1 are located in the same plane.

[0080] The first shielding part 31 is installed in the first mounting groove 210, and the first extension part 32 is located outside the first mounting groove 210. The plurality of first ports 320 are provided in the first extension part 32.

[0081] See Figure 27 The first extension portion 32 includes a first extension body 322 and a first contact portion 323, and the first flat plate portion 2231 is welded and fixed to the first contact portion 323. The first extension body 322 is connected to the first shielding portion 31, the first protrusion 321 is located on the first extension body 322, and the first through-hole 320 is close to the first shielding portion 31 relative to the first protrusion 321. The first extension body 322 does not contact the first grounding terminal G1 or the first signal terminal S1.

[0082] See Figure 27 There is a third distance H3 between the first extension body 322 and the first tail 2223, and the value of the third distance H3 is equal to the value of the second distance H2.

[0083] See Figure 13The first cable 4 includes a first signal conductor 41 and a first ground conductor 42. The first ground conductor 42 is connected to the first tail 2223. The first signal conductor 41 is connected to the first signal terminal S1. The first ground conductor 42 and the first shielding plate 3 are located on different sides of the thickness direction of the first grounding terminal G1 to avoid interference between the first cable 4 and the first shielding plate 3.

[0084] See Figure 15 The first signal conductor 41 includes a first core wire 411 and a second core wire 412, which are respectively soldered to the second tail portion 2213 of a pair of first signal terminals S1. The first ground conductor 42 includes a first ground cable 421 and a second ground cable 422, which are soldered to the first tail portion 2223 of one first ground terminal G1, and the second ground cable 422 are soldered to the first tail portion 2223 of the other first ground terminal G1.

[0085] See also Figure 15 The first cable 4 further includes a first insulating layer 431 wrapped around the first core wire 411, a second insulating layer 432 wrapped around the second core wire 412, and a third insulating layer 433 wrapped around the first insulating layer 431 and the second insulating layer 432. The first grounding cable 421 is located on one side of the first insulating layer 431, and the second grounding cable 422 is located on one side of the second insulating layer 432. The third insulating layer 433 wraps around the first grounding cable 421 and the second grounding cable 422.

[0086] See Figure 11 The second terminal module 5 includes a third insulating block 51 and a plurality of second conductive terminals 52 fixed to the third insulating block 51. In the embodiment illustrated in the present invention, the second conductive terminals 52 are embedded in the third insulating block 51. In other embodiments, the second conductive terminals 52 may also be fixed to the third insulating block 51 by means of assembly or other methods.

[0087] The third insulating block 51 is installed in the receiving groove 120, and the third insulating block 51 is installed between the bottom wall portion 12 and the second inner plate 16. See details below. Figure 21 and Figure 23The third insulating block 51 includes a second front end face 511, a second rear end face 512, a second top face 513, a second bottom face 514, and two second side faces 515. The second front end face 511 contacts the surface of the first inner plate 15, and the second top face 513 contacts the surface of the second inner plate 16. The first inner plate 15 is used to axially limit the third insulating block 51, and the second inner plate 16 is used to radially limit the third insulating block 51.

[0088] See Figure 23 The third insulating block 51 includes two second protrusions 5151 extending outward from the two second side surfaces 515. See also Figure 9 The first sidewall portion 13 of the insulating body 1 is further provided with a third slot 150; the second sidewall portion 14 of the insulating body 1 is further provided with a fourth slot 160, and both the third slot 150 and the fourth slot 160 are connected to the receiving groove 120. One of the second protrusions 5151 is installed in the third slot 150, and the other second protrusion 5151 is installed in the fourth slot 160, thereby realizing the positioning and installation of the third insulating block 51 and the insulating body 1.

[0089] See Figure 22 The third insulating block 51 has a second mounting groove 510, which is recessed inward relative to the second top surface 513. The second shielding plate 6 is mounted in the second mounting groove 510. After the third insulating block 51 is assembled with the insulating body 1, the second shielding plate 6 is located between the third insulating block 51 and the second inner plate 16. A second frame structure 511a is formed around the second mounting groove 510. The second frame structure 511a includes a third frame 512a and a fourth frame 513a opposite to the third frame 512a. The fourth frame 513a has a plurality of second openings 514a, which divide the fourth frame 513a into a plurality of second positioning portions 515a. The second shielding plate 6 has a plurality of second through-holes 620, and the second positioning portions 515a are mounted in the second through-holes 620, thereby realizing the positioning and installation of the second shielding plate 6 and the third insulating block 51.

[0090] See Figure 11The plurality of second conductive terminals 52 include a plurality of pairs of second signal terminals S2 and a plurality of second ground terminals G2, with each pair of second signal terminals S2 and each second ground terminal G2 arranged alternately. In the embodiment illustrated in the present invention, each pair of second signal terminals S2 is provided with a first ground terminal G1 on both sides. This arrangement is beneficial for providing better shielding for each pair of second signal terminals S2, thereby improving the quality of signal transmission. Preferably, each pair of second signal terminals S2 is used to transmit differential pair signals, and each pair of second signal terminals S2 forms a differential signal terminal pair.

[0091] See Figure 14 The second grounding terminal G2 includes a third main body portion 5221, a third mating portion 5222 extending from one end of the third main body portion 5221, and a third tail portion 5223 extending from the other end of the third main body portion 5221. The third mating portion 5222 extends into the mating slot 110. The third mating portion 5222 is configured to mate with the mating connector. The third tail portions 5223 of the plurality of second grounding terminals G2 are connected together by a second connecting portion 523. The present invention bridges the plurality of second grounding terminals G2 together through the second connecting portion 523, thereby achieving electrical connection between the plurality of second grounding terminals G2, reducing resonance generated within the plurality of second grounding terminals G2, and thus improving signal integrity. In the embodiment illustrated in the present invention, the second terminal module 5 includes ten second grounding terminals G2, the ten second grounding terminals G2 include ten third tail portions 5223, and the second connecting portion 523 connects the ten third tail portions 5223 together. In the embodiment illustrated in the present invention, the material used for the second connecting portion 523 is the same as the material used for the second grounding terminal G2.

[0092] See Figure 11 The third main body portion 5221 is embedded in the third insulating block 51. The third insulating block 51 has a plurality of second through holes 501, which penetrate the second top surface 513 and the second bottom surface 514. The third main body portion 5221 is at least partially exposed through the second through holes 501. See also... Figure 10 The third main body 5221 has a second width W2, and two second vertical hole walls 5011 are formed within the second through hole 501. A second distance D2 exists between the two second vertical hole walls 5011. The value of the second width W2 is not greater than the value of the second distance D2, thereby allowing the third main body 5221 to be more fully exposed to the second through hole 501. In the embodiment illustrated in the present invention, the value of the second width W2 is equal to the value of the second distance D2.

[0093] See Figure 23 The third insulating block 51 includes a second tongue portion 516, which extends from the second rear end face 512. The second tongue portion 516 includes a third extending surface 5161 and a fourth extending surface 5162 located on opposite sides of its thickness direction. The third tail portion 5223 is exposed on the third extending surface 5161, and the second cable 7 is connected to the third tail portion 5223 exposed on the third extending surface 5161, thereby achieving an electrical connection between the second cable 7 and the second grounding terminal G2.

[0094] See Figure 19 The second signal terminal S2 includes a fourth main body portion 5211, a fourth mating portion 5212 extending from one end of the fourth main body portion 5211, and a fourth tail portion 5213 extending from the other end of the fourth main body portion 5211. The fourth mating portion 5212 extends into the mating slot 110. The fourth mating portion 5212 is configured to mate with the mating connector.

[0095] The fourth main body portion 5211 is embedded in the third insulating block 51. The fourth tail portion 5213 is exposed on the third extended surface 5161, and the second cable 7 is connected to the fourth tail portion 5213 exposed on the third extended surface 5161, thereby realizing the electrical connection between the second cable 7 and the second signal terminal S2. In the embodiment illustrated in the present invention, the plurality of third tail portions 5223 and the plurality of fourth tail portions 5213 are arranged in a row along the width direction of the second tongue portion 516, and the width direction of the second tongue portion 516 is parallel to the width direction WW of the insulating body 1.

[0096] See Figure 14 The second connecting portion 523 includes a second flat plate portion 5231 and a plurality of second bent portions 5232 extending from the second flat plate portion 5231, wherein the plurality of second bent portions 5232 are connected to the plurality of third tail portions 5223. See also Figure 27 The second flat plate portion 5231 is parallel to the third tail portion 5223, and the second flat plate portion 5231 and the third tail portion 5223 are located at different heights. See also Figure 27 A second height difference H0' exists between the second flat plate portion 5231 and the third tail portion 5223. Specifically, as shown... Figure 23As shown, the third tail portion 5223 has a third outer surface 522a, the second flat portion 5231 has a fourth outer surface 523a, and the second height difference H0` is the vertical distance between the third outer surface 522a and the fourth outer surface 523a. The second space 5230 between the second bent portion 5232 and the second flat portion 5231 is configured to accommodate the second cable 7. This arrangement avoids interference with the installation of the second cable 7.

[0097] See Figure 12 The second terminal module 5 includes a fourth insulating block 53, in which the plurality of third tail portions 523, the second connecting portion 523, and the second cable 7 are at least partially embedded. The fourth insulating block 53 is integrally formed with the third insulating block 51 by injection molding. The fourth insulating block 53 has fourth protrusions 531 on both sides, one of which is installed in the third slot 150 and the other in the fourth slot 160, thereby achieving the positioning and installation of the fourth insulating block 53 and the insulating body 1.

[0098] See Figure 14 The second shielding plate 6 includes a second shielding portion 61 and a second extension portion 62 connected to the second shielding portion 61. The third main body portion 5221 is at least partially in contact with the second shielding portion 61, and the second connecting portion 523 is at least partially in contact with the second extension portion 62. Specifically, the second flat plate portion 5231 is in contact with the second extension portion 62. By having the second shielding plate 6 in contact with two areas of the second grounding terminal G2, good shielding can be formed for the second signal terminal S2, reducing crosstalk interference between signals transmitted by adjacent pairs of second signal terminals S2.

[0099] The second shielding portion 61 and the second extension portion 62 are integrally formed. See also Figure 10 The second shielding portion 61 includes a plurality of second abutment portions 611 and a plurality of second bridging portions 612, each of the second bridging portions 612 being connected to two second abutment portions 611 on both sides. The third main body portion 5221 is at least partially in contact with the second abutment portions 611. The second abutment portions 611 and the second signal terminal S2 are not in contact, and the second bridging portions 612 are not in contact with the second signal terminal S2, to prevent short circuits.

[0100] Specifically, the second through hole 501 communicates with the second mounting groove 510, and the second abutting part 611 protrudes into the second through hole 501 and contacts the third main body part 5221.

[0101] In some embodiments, the second abutment portion 611 is welded to the surface (e.g., the upper surface) of the third main body portion 5221, and the second extension portion 62 is welded to the surface (e.g., the upper surface) of the second flat plate portion 5231.

[0102] See Figure 10 The second bridging portion 612 includes a second straight portion 6121 and second inclined portions 6122 connected to both sides of the second straight portion 6121. The second abutting portion 611 connects the two second inclined portions 6122. Two second inclined hole walls 5012 are formed within the second through hole 501, and the second inclined hole walls 5012 are connected to the second vertical hole wall 5011. The second through hole 501 includes a second straight hole 501a with a uniform inner diameter and a second flared hole 501b with a gradually changing inner diameter, and the second straight hole 501a communicates with the second flared hole 501b. The two second vertical hole walls 5011 are located around the second straight hole 501a, and the two second inclined hole walls 5012 are located around the second flared hole 501b. Specifically, the inner diameter of the second flared hole 501b gradually increases outward from the second straight hole 501a. In the illustrated embodiment of the present invention, a portion of the third main body 5221 is located in the second straight hole 501a, and another portion of the third main body 5221 extends into the second flared hole 501b. The second abutting portion 611 is connected to the third main body 5221 located in the second flared hole 501b. The two second inclined hole walls 5012 are adapted to the two second inclined portions 6122.

[0103] See Figure 27 The second straight portion 6121 includes a fifth surface 612a facing away from the second signal terminal S2, and the second extension portion 62 includes a sixth surface 62a facing away from the second ground terminal G2. In the embodiment illustrated in the present invention, the second shielding sheet 6 is made from the same metal sheet, and the fifth surface 612a and the sixth surface 62a are in the same plane. This facilitates manufacturing and shaping, and also does not increase the overall height of the second shielding sheet 6, reducing its volume.

[0104] See Figure 22 The second extension 62 is provided with a plurality of second protrusions 621, which protrude from the sixth surface 62a. By providing the plurality of second protrusions 621 in the second extension 62, the holding force between the second shielding sheet 6 and the fourth insulating block 53 is improved when it is embedded in the fourth insulating block 53, and the impedance value is also improved. See also Figure 26Along the thickness direction of the second extension 62, a fourth spacing H4 exists between the second protrusion 621 and the second signal terminal S2, the fourth spacing H4 being not less than 0.67 mm. Specifically, the second protrusion 621 has a seventh surface 6210, and the fourth tail 5213 has an eighth surface 5210. The fourth spacing H4 is the distance between the seventh surface 6210 and the eighth surface 5210 along the thickness direction of the second extension 62. In the embodiment illustrated in the present invention, the fourth spacing H4 is 0.67 mm. The thickness direction of the second extension 62 is parallel to the height direction HH of the insulating body 1.

[0105] See Figure 28 The second straight portion 6121 and the fourth main body portion 5211 have a fifth distance H5. The value of the second height difference H0` is less than the value of the fourth distance H4, and the value of the fifth distance H5 is less than the value of the second height difference H0`. Specifically, the second straight portion 6121 includes a fifth surface 612a and a third inner surface 612b located on opposite sides of its thickness. The fifth distance H5 is the vertical distance between the third inner surface 612b and the fourth inner surface 521a of the fourth main body portion 5211. The fourth inner surface 521a and the eighth surface 5210 are located in the same plane.

[0106] The second shielding portion 61 is mounted in the second mounting groove 510, and the second extension portion 62 is located outside the second mounting groove 510. The plurality of second ports 620 are provided in the second extension portion 62.

[0107] See Figure 27 The second extension 62 includes a second extension body 622 and a second contact portion 623, with the second flat plate portion 5231 welded and fixed to the second contact portion 623. The second extension body 622 is connected to the second shielding portion 31, the second protrusion 621 is located on the second extension body 622, and the second through-hole 620 is close to the second shielding portion 61 relative to the second protrusion 621. The second extension body 622 does not contact either the second grounding terminal G2 or the second signal terminal S2.

[0108] See Figure 27 The second extension body 622 and the third tail 5223 have a sixth spacing H6, the value of which is equal to the value of the fifth spacing H5.

[0109] See Figure 19The second cable 7 includes a second signal conductor 71 and a second ground conductor 72. The second ground conductor 72 is connected to the third tail 5223. The second signal conductor 71 is connected to the second signal terminal S2. The second ground conductor 72 and the second shielding plate 6 are located on different sides of the thickness direction of the second grounding terminal G2 to avoid mutual interference between the second cable 7 and the second shielding plate 6.

[0110] See Figure 20 The second signal conductor 71 includes a third core wire 711 and a fourth core wire 712, which are respectively soldered to the fourth tail portion 5213 of a pair of second signal terminals S2. The second ground conductor 72 includes a third ground cable 721 and a fourth ground cable 722, which are soldered to the third tail portion 5223 of one second ground terminal G2, and the fourth ground cable 722 are soldered to the third tail portion 5223 of the other second ground terminal G2.

[0111] See Figure 20 The second cable 7 further includes a fourth insulating layer 731 wrapped around the third core wire 711, a fifth insulating layer 732 wrapped around the fourth core wire 712, and a sixth insulating layer 733 wrapped around the fourth insulating layer 731 and the fifth insulating layer 732. The third grounding cable 721 is located on one side of the fourth insulating layer 731, and the fourth grounding cable 722 is located on one side of the fifth insulating layer 732. The sixth insulating layer 733 wraps both the third grounding cable 721 and the fourth grounding cable 722.

[0112] In the embodiment illustrated in the present invention, the first shielding sheet 3 and the second shielding sheet 6 are located between the plurality of first conductive terminals 22 and the plurality of second conductive terminals 52. This arrangement reduces interference between the first signal terminal S1 and the second signal terminal S2.

[0113] See Figure 3 The electrical connector 100 further includes a fifth insulating block 8, which is integrally formed with the second insulating block 23 and the fourth insulating block 53 by injection molding. Before injection molding, the second insulating block 23 and the fourth insulating block 53 are located in the receiving groove 120 of the insulating body 1, and the fifth insulating block 8 is formed within the receiving groove 120. This arrangement enables the fifth insulating block 8 to be integrally formed with the second insulating block 23 and the fourth insulating block 53, and also achieves stable assembly of the fifth insulating block 8 with the insulating body 1.

[0114] See Figure 2The electrical connector 100 includes a pull-tab unlocking device 91 mounted on the insulating body 1, the pull-tab unlocking device 91 being used to lock with the mating connector. The pull-tab unlocking device 91 includes a fixing portion 911, a locking piece 912 bent upwards and backwards from the front end of the fixing portion 911, and a fastening portion 913 extending upwards and backwards from the rear end of the locking piece 912. The electrical connector 100 also includes a pull strap 92, the pull strap 92 being attached to the fastening portion 913. Figure 5 As shown, the insulating body 1 is provided with a slot 103, and the fixing part 911 is installed in the slot 103.

[0115] See Figure 5 The locking piece 912 has two upwardly raised locking protrusions 9121, and the fastening portion 913 protrudes upwardly from the locking protrusions 9121. Since the pull-tab unlocking device 91 is approximately U-shaped, the locking piece 912 can deform downwards under the pull of the pull strap 92. The locking protrusions 9121 are configured to lock with the mating connector.

[0116] Compared with the prior art, the present invention uses the first connecting part 223 to connect the plurality of first grounding terminals G1 together, the first shielding part 31 is in contact with the first main body part 2221 of the first grounding terminal G1, and the first extension part 32 is in contact with the first connecting part 223, thereby realizing that the first shielding sheet 3 is in contact with two areas of the first grounding terminal G1, which can form a good shield for the first signal terminal S1 and reduce crosstalk interference between the signals transmitted by adjacent pairs of first signal terminals S1.

[0117] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present invention should be based on those skilled in the art. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. An electrical connector (100), characterized in that, include: Insulating body (1); as well as A first terminal module (2) is mounted on the insulating body (1). The first terminal module (2) includes a plurality of first conductive terminals (22). The plurality of first conductive terminals (22) include a plurality of pairs of first signal terminals (S1) and a plurality of first ground terminals (G1). Each pair of first signal terminals (S1) and each first ground terminal (G1) are arranged alternately. The first ground terminal (G1) includes a first main body (2221), a first mating portion (2222) extending from one end of the first main body (2221), and a first tail portion (2223) extending from the other end of the first main body (2221). The first tail portions (2223) of the plurality of first ground terminals (G1) are connected together by a first connecting portion (223). The first shielding plate (3) includes a first shielding part (31) and a first extension part (32) connected to the first shielding part (31). The first main body part (2221) is at least partially in contact with the first shielding part (31), and the first connecting part (223) is at least partially in contact with the first extension part (32). The first cable (4) includes a first signal conductor (41) and a first ground conductor (42). The first ground conductor (42) is connected to the first tail (2223). The first signal conductor (41) is connected to the first signal terminal (S1). The first ground conductor (42) and the first shielding plate (3) are located on different sides of the thickness direction of the first grounding terminal (G1).

2. The electrical connector (100) as claimed in claim 1, characterized in that: The first connecting portion (223) includes a first flat plate portion (2231) and a plurality of first bent portions (2232) extending from the first flat plate portion (2231). The plurality of first bent portions (2232) are connected to the plurality of first tail portions (2223), and the first flat plate portion (2231) is in contact with the first extension portion (32).

3. The electrical connector (100) as described in claim 2, characterized in that: The first extension (32) includes a first extension body (322) and a first contact part (323). The first flat plate part (2231) is welded and fixed to the first contact part (323). The first extension body (322) is connected to the first shielding part (31). The first extension body (322) does not contact the first grounding terminal (G1).

4. The electrical connector (100) as claimed in claim 2, characterized in that: The first flat plate portion (2231) and the first tail portion (2223) are located at different heights, and the first bent portion (2232) and the first flat plate portion (2231) form a first space (2230), which is configured to accommodate the first cable (4).

5. The electrical connector (100) as claimed in claim 1, characterized in that: The first shielding part (31) and the first extension part (32) are integrally formed.

6. The electrical connector (100) as claimed in claim 1, characterized in that: The first shielding part (31) includes a plurality of first abutting parts (311) and a plurality of first bridging parts (312). Each first bridging part (312) is connected to two first abutting parts (311) on both sides. The first main body part (2221) is at least partially in contact with the first abutting parts (311).

7. The electrical connector (100) as claimed in claim 6, characterized in that: The first bridging portion (312) includes a first straight portion (3121) and a first inclined portion (3122) connected to both sides of the first straight portion (3121). The first straight portion (3121) includes a first surface (312a) facing away from the first signal terminal (S1), and the first extension portion (32) includes a second surface (32a) facing away from the first ground terminal (G1). The first surface (312a) and the second surface (32a) are in the same plane.

8. The electrical connector (100) as claimed in claim 7, characterized in that: The first extension (32) is provided with a plurality of first protrusions (321), the first protrusions (321) protruding from the second surface (32a), and along the thickness direction of the first extension (32), the first protrusions (321) and the first signal terminal (S1) have a first gap (H1), the first gap (H1) being not less than 0.67mm.

9. The electrical connector (100) as claimed in claim 1, characterized in that: The first terminal module (2) includes a first insulating block (21), and the plurality of first conductive terminals (22) are fixed to the first insulating block (21). The insulating body (1) has a receiving groove (120), and the first insulating block (21) is installed in the receiving groove (120). The first insulating block (21) includes a plurality of first positioning parts (215a), and the first extension part (32) is provided with a plurality of first openings (320), and the first positioning parts (215a) are installed in the first openings (320).

10. The electrical connector (100) as claimed in claim 1, characterized in that: The electrical connector (100) includes a second terminal module (5) mounted on the insulating body (1), a second shielding plate (6) cooperating with the second terminal module (5), and a second cable (7) connected to the second terminal module (5); The second terminal module (5) includes a plurality of second conductive terminals (52), the plurality of second conductive terminals (52) including a plurality of pairs of second signal terminals (S2) and a plurality of second ground terminals (G2), each pair of second signal terminals (S2) and each second ground terminal (G2) are arranged alternately; The second cable (7) includes a second signal conductor (71) and a second ground conductor (72). The second ground conductor (72) is connected to the second grounding terminal (G2). The second signal conductor (71) is connected to the second signal terminal (S2). The second ground conductor (72) and the second shielding sheet (6) are located on different sides of the thickness direction of the second grounding terminal (G2). The first shielding plate (3) and the second shielding plate (6) are located between the plurality of first conductive terminals (22) and the plurality of second conductive terminals (52).

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