Electrical connector

Abstract

An electrical connector includes an insulating body, a first terminal module and a second terminal module. The insulating body is provided with a mating slot. The first terminal module includes a first ground terminal, a first signal terminal and a first cable electrically connected with the first signal terminal. The first ground terminal is provided with a first mounting hole. The second terminal module includes a second ground terminal, a second signal terminal and a second cable electrically connected with the second signal terminal. The second ground terminal is provided with a mounting tail and a protrusion. The mounting tail is configured to be mounted on a circuit board. The protrusion is configured to be inserted into the first mounting hole, so that the second ground terminal is in contact with the first ground terminal. In this way, the first ground terminal and the second ground terminal of the present application are connected, thereby facilitating the improvement of the ground shielding effect.

Description

Technical Field

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

[0002] The electrical connector in the related technology includes an insulating body, a first terminal module mounted on the insulating body, and a second terminal module mounted on the insulating body. The first terminal module includes a plurality of first signal terminals and a plurality of first ground terminals. The second terminal module includes a plurality of second signal terminals and a plurality of second ground terminals. To improve the grounding shielding effect, the first terminal module further includes a first ground plane that connects the plurality of first ground terminals in series. Similarly, the second terminal module further includes a second ground plane that connects the plurality of second ground terminals in series.

[0003] However, there is still room for improvement in the grounding shielding structure of electrical connectors in related technologies. Summary of the Invention

[0004] The purpose of this invention is to provide an electrical connector with an improved structure.

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

[0006] An insulating body, wherein the insulating body is provided with a mating slot, the mating slot being configured to mate with a mating module along a first direction;

[0007] A first terminal module, comprising a first ground terminal, a first signal terminal located beside the first ground terminal along a second direction, and a first cable electrically connected to the first signal terminal; the first ground terminal is provided with a first mounting hole; and

[0008] The second terminal module includes a second grounding terminal, a second signal terminal located beside the second grounding terminal along the second direction, and a second cable electrically connected to the second signal terminal; the second grounding terminal is provided with a mounting tail and a protruding strip.

[0009] The mounting tail is configured to be mounted on the circuit board; the protruding part is configured to be inserted into the first mounting hole so that the second grounding terminal contacts the first grounding terminal.

[0010] As a further improvement of the present invention, the first terminal module and the second terminal module are respectively located on both sides of the docking slot along a third direction.

[0011] As a further improved technical solution of the present invention, the first grounding terminal is provided with a first fixing part, a first elastic arm part extending from one end of the first fixing part, and a first tail part extending from the other end of the first fixing part; the first elastic arm part is provided with a first contact part protruding into the docking slot; the first mounting hole is provided in the first tail part.

[0012] As a further improved technical solution of the present invention, the second grounding terminal is provided with a second fixing part, a second elastic arm part extending from one end of the second fixing part, and a second tail part extending from the other end of the second fixing part; the second elastic arm part is provided with a second contact part protruding into the docking slot; the mounting tail part and the protruding strip part are both extended from the first tail part, and the mounting tail part and the protruding strip part are both extended along the third direction, and the extension directions are opposite.

[0013] The first direction, the second direction, and the third direction are all perpendicular to each other.

[0014] As a further improvement of the present invention, the mounting tail extends from the side of the second tail, and the protruding strip extends from the rear end face of the second tail.

[0015] As a further improved technical solution of the present invention, the first mounting hole is provided with a narrowing groove in the middle of the first mounting hole, and the first tail is provided with a first protrusion and a second protrusion corresponding to the narrowing groove. The narrowing groove is located on both sides of the first protrusion and the second protrusion, and the first protrusion and the second protrusion abut against the two sides of the convex strip.

[0016] As a further improvement of the present invention, the first terminal module includes a third ground terminal disposed at a distance from the first ground terminal along the second direction; the first signal terminal includes a first differential signal terminal and a second differential signal terminal, the first differential signal terminal and the second differential signal terminal forming a first differential pair, the first differential pair being located between the first ground terminal and the third ground terminal; the first cable includes a first wire connected to the first differential signal terminal and a second wire connected to the second differential signal terminal;

[0017] The third grounding terminal is provided with a third fixing part, a third spring arm part extending from one end of the third fixing part, and a third tail part extending from the other end of the third fixing part.

[0018] As a further improved technical solution of the present invention, the first terminal module includes a first ground plane, the first ground plane is provided with a first abutting part, a second abutting part, and a first raised part connecting the first abutting part and the second abutting part; the first abutting part contacts the first tail of the first grounding terminal; the second abutting part contacts the third tail of the third grounding terminal; the first cable is provided with a first shielding part, and the first raised part contacts the first shielding part.

[0019] As a further improved technical solution of the present invention, the first terminal module includes a second grounding plate, the second grounding plate being provided with a third abutting portion, a fourth abutting portion, a first abutting spring arm and a second abutting spring arm; wherein the third abutting portion contacts the first fixing portion of the first grounding terminal; the fourth abutting portion contacts the third fixing portion of the third grounding terminal; the first abutting spring arm cooperates with the first spring arm portion of the first grounding terminal; and the second abutting spring arm cooperates with the third spring arm portion of the third grounding terminal.

[0020] As a further improvement of the present invention, the first terminal module includes a third grounding plate, the third grounding plate having a fifth abutment portion, a sixth abutment portion, and a third raised portion connecting the fifth abutment portion and the sixth abutment portion; the fifth abutment portion contacts the first tail portion of the first grounding terminal; the sixth abutment portion contacts the third tail portion of the third grounding terminal; the third raised portion contacts the first shielding portion;

[0021] The first tail of the first grounding terminal is clamped between the first abutting portion and the fifth abutting portion; the third tail of the third grounding terminal is clamped between the second abutting portion and the sixth abutting portion; the first shielding portion is wrapped by the first raised portion and the third raised portion.

[0022] As a further improvement of the present invention, the second terminal module includes a fourth ground terminal disposed at a distance from the second ground terminal along the second direction; the second signal terminal includes a third differential signal terminal and a fourth differential signal terminal, the third differential signal terminal and the fourth differential signal terminal forming a second differential pair, the second differential pair being located between the second ground terminal and the fourth ground terminal; the second cable includes a third wire connected to the third differential signal terminal and a fourth wire connected to the fourth differential signal terminal;

[0023] The fourth grounding terminal is provided with a fourth fixing part, a fourth elastic arm part extending from one end of the fourth fixing part, and a fourth tail part extending from the other end of the fourth fixing part.

[0024] As a further improved technical solution of the present invention, the second terminal module includes a fourth ground plane, the fourth ground plane is provided with a seventh abutment portion, an eighth abutment portion, and a fourth raised portion connecting the seventh abutment portion and the eighth abutment portion; the seventh abutment portion contacts the second tail portion of the second grounding terminal; the eighth abutment portion contacts the fourth tail portion of the fourth grounding terminal; the second cable is provided with a second shielding portion, and the fourth raised portion contacts the second shielding portion.

[0025] As a further improved technical solution of the present invention, the second terminal module includes a fifth grounding plate, the fifth grounding plate being provided with a ninth abutment portion, a tenth abutment portion, a third abutment spring arm and a fourth abutment spring arm; wherein the ninth abutment portion contacts the second fixing portion of the second grounding terminal; the tenth abutment portion contacts the fourth fixing portion of the fourth grounding terminal; the third abutment spring arm cooperates with the second spring arm portion of the second grounding terminal; and the fourth abutment spring arm cooperates with the fourth spring arm portion of the fourth grounding terminal.

[0026] As a further improvement of the present invention, the second terminal module includes a sixth ground plane, the sixth ground plane having an eleventh abutment portion, a twelfth abutment portion, and a sixth raised portion connecting the eleventh abutment portion and the twelfth abutment portion; the eleventh abutment portion contacts the second tail portion of the second grounding terminal; the twelfth abutment portion contacts the fourth tail portion of the fourth grounding terminal; the sixth raised portion contacts the second shielding portion;

[0027] The second tail of the second grounding terminal is clamped between the seventh abutment and the eleventh abutment; the fourth tail of the fourth grounding terminal is clamped between the eighth abutment and the twelfth abutment; the second shield is wrapped by the fourth raised portion and the sixth raised portion.

[0028] As a further improvement of the present invention, the mounting tail is provided with a fisheye hole, which makes the mounting tail elastic; the mounting tail is configured to be inserted into the conductive hole of the circuit board.

[0029] As a further improvement of the present invention, the electrical connector includes a third terminal module and a fourth terminal module, wherein the first terminal module and the third terminal module are symmetrically arranged, and the second terminal module and the fourth terminal module are symmetrically arranged.

[0030] As a further improvement of the present invention, the electrical connector includes a plurality of first additional conductive terminals located between the first terminal module and the third terminal module, and a plurality of second additional conductive terminals located between the second terminal module and the fourth terminal module;

[0031] Each first additional conductive terminal includes a first additional spring arm portion and a first additional tail portion; the first additional spring arm portion is provided with a first additional contact portion protruding into the mating slot; the first additional tail portion is configured to be electrically connected to the circuit board.

[0032] Each second additional conductive terminal includes a second additional spring arm portion and a second additional tail portion; the second additional spring arm portion is provided with a second additional contact portion protruding into the mating slot; the second additional tail portion is configured to be electrically connected to the circuit board.

[0033] The first additional contact portion and the second additional contact portion are located on both sides of the mating slot, respectively.

[0034] Compared to existing technologies, the first grounding terminal of the first terminal module of the present invention has a first mounting hole; the second grounding terminal of the second terminal module has a mounting tail and a protruding strip; the protruding strip is configured to be inserted into the first mounting hole, so that the second grounding terminal contacts the first grounding terminal. With this configuration, the first grounding terminal of the first terminal module of the present invention is connected to the second grounding terminal of the second terminal module, thereby improving the grounding shielding effect. Attached Figure Description

[0035] Figure 1 This is a perspective view of the electrical connector of the present invention in one embodiment;

[0036] Figure 2 yes Figure 1 A three-dimensional diagram from another angle;

[0037] Figure 3 yes Figure 1 A partial exploded view, in which the insulating body is separated;

[0038] Figure 4 yes Figure 3 Another perspective of a partially exploded 3D view;

[0039] Figure 5 It is to remove Figure 3 Further partial exploded perspective view of the insulating body described in the figure;

[0040] Figure 6 yes Figure 5 Another perspective of a partially exploded 3D view;

[0041] Figure 7 yes Figure 5 Partial exploded perspective view of the first terminal module and the second terminal module in the image;

[0042] Figure 8 yes Figure 7Another perspective of a partially exploded 3D view;

[0043] Figure 9 yes Figure 7 Further partial exploded view;

[0044] Figure 10 yes Figure 9 Another perspective of a partially exploded 3D view;

[0045] Figure 11 yes Figure 1 Partial exploded 3D diagram;

[0046] Figure 12 yes Figure 11 Another perspective of a partially exploded 3D view;

[0047] Figure 13 yes Figure 11 The right view;

[0048] Figure 14 yes Figure 11 A magnified view of part B circled in the middle;

[0049] Figure 15 yes Figure 9 Partial exploded perspective view of the first terminal module in the middle section;

[0050] Figure 16 yes Figure 15 Another perspective of a partially exploded 3D view;

[0051] Figure 17 yes Figure 9 Partial exploded perspective view of the second terminal module in the middle section;

[0052] Figure 18 yes Figure 17 Another perspective of a partially exploded 3D view;

[0053] Figure 19 yes Figure 11 A three-dimensional schematic diagram of the first conductive terminal and the second conductive terminal in the figure;

[0054] Figure 20 yes Figure 19 A three-dimensional diagram from another angle;

[0055] Figure 21 yes Figure 19 The right view;

[0056] Figure 22 yes Figure 19 The left view;

[0057] Figure 23 yes Figure 19 Top view;

[0058] Figure 24 yes Figure 23 A magnified view of part D circled in the middle;

[0059] Figure 25 It is along Figure 1 A cross-sectional view of the CC line is shown, and the circuit board is schematically illustrated. Detailed Implementation

[0060] 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.

[0061] 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.

[0062] 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.

[0063] Please refer to Figures 1 to 25 As shown, the present invention discloses an electrical connector 100, which includes an insulating body 3, a first terminal module 1 mounted on the insulating body 3, a second terminal module 2 mounted on the insulating body 3, and a covering shell 4 overlaid on the first terminal module 1, the second terminal module 2 and the insulating body 3.

[0064] In the embodiment illustrated in the present invention, the insulating body 3 includes a first wall portion 31, a second wall portion 32 opposite to the first wall portion 31, a third wall portion 33 connecting one side of the first wall portion 31 and one side of the second wall portion 32, and a fourth wall portion 34 connecting the other side of the first wall portion 31 and the other side of the second wall portion 32. The insulating body 3 has a mating surface 35 and a mating slot 350 extending through the mating surface 35 along a first direction A1-A1 (e.g., a front-to-back direction). The mating slot 350 is configured to receive a mating module (e.g., a mating connector) along the first direction A1-A1. The mating slot 350 is formed by the first wall portion 31, the second wall portion 32, the third wall portion 33, and the fourth wall portion 34. The second wall portion 32 has a protruding mounting post 321, which is configured to be mounted in a mounting hole of the circuit board 200.

[0065] The first terminal module 1 includes a first terminal module 1a, a third terminal module 1c, a plurality of first additional conductive terminals 1b located between the first terminal module 1a and the third terminal module 1c, and a first insulating block 1d fixed on the first terminal module 1a, the first additional conductive terminals 1b, and the third terminal module 1c. The first terminal module 1a, the first additional conductive terminals 1b, and the third terminal module 1c are arranged sequentially along a second direction A2-A2 (e.g., a left-right direction).

[0066] In the embodiment illustrated in the present invention, the first terminal module 1a includes a first ground terminal G1, a third ground terminal G3, at least one first signal terminal S1 located between the first ground terminal G1 and the third ground terminal G3 along the second direction A1-A1, a first cable 14 electrically connected to the first signal terminal S1, a first ground plane 15, a second ground plane 16, and a third ground plane 17.

[0067] In the embodiment illustrated in the present invention, the first signal terminal S1 includes a first differential signal terminal DS1 and a second differential signal terminal DS2. The first differential signal terminal DS1 and the second differential signal terminal DS2 constitute a first differential pair to improve the signal transmission rate. The first differential pair is located between the first ground terminal G1 and the third ground terminal G3 to improve the signal transmission quality.

[0068] In the illustrated embodiment of the present invention, the first grounding terminal G1 is provided with a first fixing portion 111, a first spring arm portion 112 extending from one end of the first fixing portion 111, and a first tail portion 113 extending from the other end of the first fixing portion 111. The first spring arm portion 112 is provided with a first contact portion 1121 protruding into the mating slot 350. The first tail portion 113 is provided with a first mounting hole 1130. In the illustrated embodiment of the present invention, the first mounting hole 1130 is provided with a narrowing groove 1131 located in the middle of the first mounting hole 1130. The first tail portion 113 is provided with a first protrusion 1132 and a second protrusion 1133 corresponding to the narrowing groove 1131. The narrowing groove 1131 is located on both sides of the first protrusion 1132 and the second protrusion 1133.

[0069] The third grounding terminal G3 is provided with a third fixing part 121, a third elastic arm part 122 extending from one end of the third fixing part 121, and a third tail part 123 extending from the other end of the third fixing part 121.

[0070] Each first signal terminal S1 includes a first retaining portion 131, a first elastic arm 132 extending from one end of the first retaining portion 131, and a first mounting portion 133 extending from the other end of the first retaining portion 131. The first elastic arm 132 is provided with a first mating portion 1321 protruding into the mating slot 350.

[0071] The first cable 14 includes a first conductor 141, a second conductor 142, a first insulating layer 143 covering the first conductor 141, a second insulating layer 144 covering the second conductor 142, a first shielding portion 145 covering the first insulating layer 143 and the second insulating layer 144, and a first insulating sheath 146 disposed outside the first shielding portion 145. The first conductor 141 and the second conductor 142 are configured to be electrically connected to the first mounting portion 133 of the first differential signal terminal DS1 and the first mounting portion 133 of the second differential signal terminal DS2, respectively. In one embodiment of the present invention, the first conductor 141 and the second conductor 142 are configured to be soldered to the first mounting portion 133 of the first differential signal terminal DS1 and the first mounting portion 133 of the second differential signal terminal DS2, respectively.

[0072] The first grounding plate 15 is provided with a first abutment portion 151, a second abutment portion 152, and a first raised portion 153 connecting the first abutment portion 151 and the second abutment portion 152. The first abutment portion 151 contacts the first tail portion 113 of the first grounding terminal G1. The second abutment portion 152 contacts the third tail portion 123 of the third grounding terminal G3. The inner wall surface of the first raised portion 153 contacts the first shielding portion 145.

[0073] The second grounding plate 16 is provided with a third abutment portion 161, a fourth abutment portion 162, a second raised portion 163 connecting the third abutment portion 161 and the fourth abutment portion 162, and a first extension portion 164 extending from the second raised portion 163. The first extension portion 164 includes a first abutment spring arm 1641 and a second abutment spring arm 1642. The third abutment portion 161 contacts the first fixing portion 111 of the first grounding terminal G1. The fourth abutment portion 162 contacts the third fixing portion 131 of the third grounding terminal G3. The first abutment spring arm 1641 cooperates with the first spring arm portion 112 of the first grounding terminal G1, and the second abutment spring arm 1642 cooperates with the third spring arm portion 122 of the third grounding terminal G3. Specifically, in the embodiment illustrated in the present invention, the first abutting spring arm 1641 contacts the first spring arm portion 112 of the first grounding terminal G1, and the second abutting spring arm 1642 contacts the third spring arm portion 122 of the third grounding terminal G3, so as to improve the grounding shielding effect.

[0074] The third grounding plate 17 is provided with a fifth abutment portion 171, a sixth abutment portion 172, and a third raised portion 173 connecting the fifth abutment portion 171 and the sixth abutment portion 172. The fifth abutment portion 171 contacts the first tail portion 113 of the first grounding terminal G1. The sixth abutment portion 172 contacts the third tail portion 123 of the third grounding terminal G3. The inner wall surface of the third raised portion 173 contacts the first shielding portion 145.

[0075] In the illustrated embodiment of the present invention, the first ground plane 15 and the third ground plane 17 are respectively located on both sides (e.g., the upper and lower sides) of the first ground terminal G1, the third ground terminal G3, and the first signal terminal S1. The first tail portion 113 of the first ground terminal G1 is sandwiched between the first abutment portion 151 and the fifth abutment portion 171. The third tail portion 123 of the third ground terminal G3 is sandwiched between the second abutment portion 152 and the sixth abutment portion 172. The first shielding portion 145 is wrapped by the first raised portion 153 and the third raised portion 173.

[0076] In the embodiment illustrated in the present invention, the first terminal module 1a and the third terminal module 1c are symmetrically arranged along the central axis of the electrical connector 100.

[0077] Each first additional conductive terminal 1b includes a first additional spring arm portion 1b1 and a first additional tail portion 1b2. The first additional spring arm portion 1b1 has a first additional contact portion 1b11 protruding into the mating slot 350. The first additional tail portion 1b2 is configured to be electrically connected to the circuit board 200. In the illustrated embodiment of the present invention, the first additional conductive terminal 1b is configured to transmit low-speed signals, and the conductive terminal connected to the first cable 14 and the second cable 24 is configured to transmit high-speed signals. In the illustrated embodiment of the present invention, the first additional tail portion 1b2 is perpendicular to the first additional spring arm portion 1b1.

[0078] In the embodiment illustrated in the present invention, all terminals of the first terminal module 1 are referred to as first conductive terminals. The first insulating block 1d is at least partially fixed to the first fixing portion 111 of the first grounding terminal G1, the first holding portion 131 of the first signal terminal S1, and the third fixing portion 121 of the third grounding terminal G3. In one embodiment of the present invention, the first fixing portion 111 of the first grounding terminal G1, the first holding portion 131 of the first signal terminal S1, and the third fixing portion 121 of the third grounding terminal G3 are embedded in the first insulating block 1d. The first mounting hole 1130 is located outside the first insulating block 1d.

[0079] The second terminal module 2 includes a second terminal module 2a, a fourth terminal module 2c, a plurality of second additional conductive terminals 2b located between the second terminal module 2a and the fourth terminal module 2c, and a second insulating block 2d fixed on the second terminal module 2a, the second additional conductive terminals 2b, and the fourth terminal module 2c. The second terminal module 2a, the second additional conductive terminals 2b, and the fourth terminal module 2c are arranged sequentially along the second direction A2-A2. The first terminal module 1a and the second terminal module 2a are located on both sides of the mating slot 350 along a third direction A3-A3 (e.g., vertical direction). The first direction A1-A1, the second direction A2-A2, and the third direction A3-A3 are mutually perpendicular.

[0080] In the embodiment illustrated in the present invention, the second terminal module 2a includes a second ground terminal G2, a fourth ground terminal G4, at least one second signal terminal S2 located between the second ground terminal G2 and the fourth ground terminal G4 along the second direction A1-A1, a second cable 24 electrically connected to the second signal terminal S2, a fourth ground plate 25, a fifth ground plate 26, and a sixth ground plate 27.

[0081] In the embodiment illustrated in the present invention, the second signal terminal S2 includes a third differential signal terminal DS3 and a fourth differential signal terminal DS4. The third differential signal terminal DS3 and the fourth differential signal terminal DS4 constitute a second differential pair to improve the signal transmission rate. The second differential pair is located between the second ground terminal G2 and the fourth ground terminal G4 to improve the signal transmission quality.

[0082] In the illustrated embodiment of the present invention, the second grounding terminal G2 is provided with a second fixing portion 211, a second elastic arm portion 212 extending from one end of the second fixing portion 211, and a second tail portion 213 extending from the other end of the second fixing portion 211. The second elastic arm portion 212 is provided with a second contact portion 2121 protruding into the mating slot 350. The second grounding terminal G2 is also provided with a mounting tail portion 214 extending from the side of the second tail portion 213, and a protruding strip portion 215 extending from the rear end face of the second tail portion 213. The mounting tail portion 214 is configured to be mounted on the circuit board 200. The protruding strip portion 215 is configured to be inserted into the first mounting hole 1130, so that the second grounding terminal G2 contacts the first grounding terminal G1. In the illustrated embodiment of the present invention, the mounting tail portion 214 is provided with a fisheye hole 2140, so that the mounting tail portion 214 is elastic; the mounting tail portion 214 is configured to be inserted into the conductive hole of the circuit board 200. The two sides of the protruding strip 215 interfere with the first protrusion 1132 and the second protrusion 1133 respectively, thereby improving the reliability of the contact. In the embodiment illustrated in the present invention, both the mounting tail 214 and the protruding strip 215 extend along the third direction A3-A3, and the extending directions are opposite.

[0083] The fourth grounding terminal G4 is provided with a fourth fixing part 221, a fourth elastic arm part 222 extending from one end of the fourth fixing part 221, and a fourth tail part 223 extending from the other end of the fourth fixing part 221.

[0084] Each second signal terminal S2 includes a second retaining portion 231, a second elastic arm 232 extending from one end of the second retaining portion 231, and a second mounting portion 233 extending from the other end of the second retaining portion 231. The second elastic arm 232 is provided with a second mating portion 2321 protruding into the mating slot 350.

[0085] The second cable 24 includes a third conductor 241, a fourth conductor 242, a third insulating layer 243 covering the third conductor 241, a fourth insulating layer 244 covering the fourth conductor 242, a second shielding portion 245 covering the third insulating layer 243 and the fourth insulating layer 244, and a second insulating sheath 246 disposed outside the second shielding portion 245. The third conductor 241 and the fourth conductor 242 are configured to be electrically connected to the second mounting portion 233 of the third differential signal terminal DS3 and the second mounting portion 233 of the fourth differential signal terminal DS4, respectively. In one embodiment of the present invention, the third conductor 241 and the fourth conductor 242 are configured to be soldered to the second mounting portion 233 of the third differential signal terminal DS3 and the second mounting portion 233 of the fourth differential signal terminal DS4, respectively.

[0086] The fourth grounding plate 25 is provided with a seventh abutment portion 251, an eighth abutment portion 252, and a fourth raised portion 253 connecting the seventh abutment portion 251 and the eighth abutment portion 252. The seventh abutment portion 251 contacts the second tail portion 213 of the second grounding terminal G2. The eighth abutment portion 252 contacts the fourth tail portion 223 of the fourth grounding terminal G4. The inner wall surface of the fourth raised portion 253 contacts the second shielding portion 245.

[0087] The fifth grounding plate 26 is provided with a ninth abutment portion 261, a tenth abutment portion 262, a fifth raised portion 263 connecting the ninth abutment portion 261 and the tenth abutment portion 262, and a second extension portion 264 extending from the fifth raised portion 263. The second extension portion 264 includes a third abutment spring arm 2641 and a fourth abutment spring arm 2642. The ninth abutment portion 261 contacts the second fixing portion 211 of the second grounding terminal G2. The tenth abutment portion 262 contacts the third fixing portion 131 of the fourth grounding terminal G4. The third abutment spring arm 2641 cooperates with the second spring arm portion 212 of the second grounding terminal G2, and the fourth abutment spring arm 2642 cooperates with the fourth spring arm portion 222 of the fourth grounding terminal G4. Specifically, in the embodiment illustrated in the present invention, the third abutment spring arm 2641 contacts the second spring arm portion 212 of the second grounding terminal G2, and the fourth abutment spring arm 2642 contacts the fourth spring arm portion 222 of the fourth grounding terminal G4, so as to improve the grounding shielding effect.

[0088] The sixth grounding plate 27 is provided with an eleventh abutment portion 271, a twelfth abutment portion 272, and a sixth raised portion 273 connecting the eleventh abutment portion 271 and the twelfth abutment portion 272. The eleventh abutment portion 271 contacts the second tail portion 213 of the second grounding terminal G2. The twelfth abutment portion 272 contacts the fourth tail portion 223 of the fourth grounding terminal G4. The inner wall surface of the sixth raised portion 273 contacts the second shielding portion 245.

[0089] In the illustrated embodiment of the present invention, the sixth grounding plate 27 and the fourth grounding plate 25 are respectively located on both sides (e.g., the upper and lower sides) of the second grounding terminal G2, the fourth grounding terminal G4, and the second signal terminal S2. The second tail portion 213 of the second grounding terminal G2 is sandwiched between the seventh abutment portion 251 and the eleventh abutment portion 271. The fourth tail portion 223 of the fourth grounding terminal G4 is sandwiched between the eighth abutment portion 252 and the twelfth abutment portion 272. The second shielding portion 245 is wrapped by the fourth raised portion 253 and the sixth raised portion 273.

[0090] In the embodiment illustrated in the present invention, the second terminal module 2a and the fourth terminal module 2c are symmetrically arranged along the central axis of the electrical connector 100.

[0091] Each second additional conductive terminal 2b includes a second additional spring arm portion 2b1 and a second additional tail portion 2b2. The second additional spring arm portion 2b1 has a second additional contact portion 2b11 protruding into the mating slot 350. The second additional tail portion 2b2 is configured to be electrically connected to the circuit board 200. In the illustrated embodiment of the present invention, the second additional conductive terminal 2b is configured to transmit low-speed signals. In the illustrated embodiment of the present invention, the second additional tail portion 2b2 is perpendicular to the second additional spring arm portion 2b1.

[0092] In the illustrated embodiment of the present invention, all terminals of the second terminal module 2 are referred to as second conductive terminals. The second insulating block 2d is at least partially fixed to the second fixing portion 211 of the second grounding terminal G2, the second holding portion 231 of the second signal terminal S2, and the fourth fixing portion 221 of the fourth grounding terminal G4. In one embodiment of the present invention, the second fixing portion 211 of the second grounding terminal G2, the second holding portion 231 of the second signal terminal S2, and the fourth fixing portion 221 of the fourth grounding terminal G4 are embedded in the second insulating block 2d. The mounting tail portion 214 and the protruding strip portion 215 are both located outside the second insulating block 2d.

[0093] Compared to existing technologies, in this invention, the first grounding terminal G1 of the first terminal module 1a is provided with a first mounting hole 1130; the second grounding terminal G2 of the second terminal module 2a is provided with a mounting tail 214 and a protruding part 215; the protruding part 215 is configured to be inserted into the first mounting hole 1130, so that the second grounding terminal G2 contacts the first grounding terminal G1. With this configuration, the first grounding terminal G1 of the first terminal module 1a and the second grounding terminal G2 of the second terminal module 2a are connected, thereby improving the grounding shielding effect.

[0094] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present invention should be based on those skilled in the art. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. An electrical connector, characterized in that, include: An insulating body, wherein the insulating body is provided with a mating slot, the mating slot being configured to mate with a mating module along a first direction; A first terminal module, comprising a first ground terminal, a first signal terminal located beside the first ground terminal along a second direction, and a first cable electrically connected to the first signal terminal; the first ground terminal is provided with a first mounting hole; and The second terminal module includes a second grounding terminal, a second signal terminal located beside the second grounding terminal along the second direction, and a second cable electrically connected to the second signal terminal; the second grounding terminal is provided with a mounting tail and a protruding strip. The mounting tail is configured to be mounted on the circuit board; the protruding part is configured to be inserted into the first mounting hole so that the second grounding terminal contacts the first grounding terminal.

2. The electrical connector as described in claim 1, characterized in that: The first terminal module and the second terminal module are located on both sides of the docking slot along a third direction.

3. The electrical connector as described in claim 2, characterized in that: The first grounding terminal has a first fixing part, a first spring arm part extending from one end of the first fixing part, and a first tail part extending from the other end of the first fixing part; the first spring arm part has a first contact part protruding into the docking slot; the first mounting hole is provided at the first tail part.

4. The electrical connector as described in claim 3, characterized in that: The second grounding terminal is provided with a second fixing part, a second spring arm part extending from one end of the second fixing part, and a second tail part extending from the other end of the second fixing part; the second spring arm part is provided with a second contact part protruding into the docking slot; the mounting tail part and the protruding strip part are both extended from the first tail part, and the mounting tail part and the protruding strip part are both extended along the third direction, and the extension directions are opposite. The first direction, the second direction, and the third direction are all perpendicular to each other.

5. The electrical connector as described in claim 4, characterized in that: The mounting tail extends from the side of the second tail, and the protruding strip extends from the rear end face of the second tail.

6. The electrical connector as described in claim 2, characterized in that: The first mounting hole has a narrowing groove in the middle of the first mounting hole, and the first tail has a first protrusion and a second protrusion corresponding to the narrowing groove. The narrowing groove is located on both sides of the first protrusion and the second protrusion, and the first protrusion and the second protrusion abut against the two sides of the convex strip.

7. The electrical connector as claimed in claim 4, characterized in that: The first terminal module includes a third ground terminal spaced apart from the first ground terminal along the second direction; the first signal terminal includes a first differential signal terminal and a second differential signal terminal, the first differential signal terminal and the second differential signal terminal forming a first differential pair, the first differential pair being located between the first ground terminal and the third ground terminal; the first cable includes a first wire connected to the first differential signal terminal and a second wire connected to the second differential signal terminal; The third grounding terminal is provided with a third fixing part, a third spring arm part extending from one end of the third fixing part, and a third tail part extending from the other end of the third fixing part.

8. The electrical connector as claimed in claim 7, characterized in that: The first terminal module includes a first ground plane, which has a first abutment portion, a second abutment portion, and a first raised portion connecting the first abutment portion and the second abutment portion; the first abutment portion contacts the first tail portion of the first grounding terminal; the second abutment portion contacts the third tail portion of the third grounding terminal; the first cable has a first shielding portion, and the first raised portion contacts the first shielding portion.

9. The electrical connector as claimed in claim 8, characterized in that: The first terminal module includes a second grounding plate, the second grounding plate having a third abutment portion, a fourth abutment portion, a first abutment spring arm and a second abutment spring arm; wherein the third abutment portion contacts the first fixing portion of the first grounding terminal; the fourth abutment portion contacts the third fixing portion of the third grounding terminal; the first abutment spring arm cooperates with the first spring arm portion of the first grounding terminal; and the second abutment spring arm cooperates with the third spring arm portion of the third grounding terminal.

10. The electrical connector as claimed in claim 8, characterized in that: The first terminal module includes a third ground plane, which has a fifth abutment portion, a sixth abutment portion, and a third raised portion connecting the fifth abutment portion and the sixth abutment portion; the fifth abutment portion contacts the first tail portion of the first grounding terminal; the sixth abutment portion contacts the third tail portion of the third grounding terminal; and the third raised portion contacts the first shielding portion. The first tail of the first grounding terminal is clamped between the first abutting portion and the fifth abutting portion; the third tail of the third grounding terminal is clamped between the second abutting portion and the sixth abutting portion; the first shielding portion is wrapped by the first raised portion and the third raised portion.

11. The electrical connector as claimed in claim 10, characterized in that: The second terminal module includes a fourth ground terminal spaced apart from the second ground terminal along the second direction; the second signal terminal includes a third differential signal terminal and a fourth differential signal terminal, the third differential signal terminal and the fourth differential signal terminal forming a second differential pair, the second differential pair being located between the second ground terminal and the fourth ground terminal; the second cable includes a third wire connected to the third differential signal terminal and a fourth wire connected to the fourth differential signal terminal; The fourth grounding terminal is provided with a fourth fixing part, a fourth elastic arm part extending from one end of the fourth fixing part, and a fourth tail part extending from the other end of the fourth fixing part.

12. The electrical connector as claimed in claim 11, characterized in that: The second terminal module includes a fourth ground plane, which has a seventh abutment portion, an eighth abutment portion, and a fourth raised portion connecting the seventh abutment portion and the eighth abutment portion; the seventh abutment portion contacts the second tail portion of the second grounding terminal; the eighth abutment portion contacts the fourth tail portion of the fourth grounding terminal; the second cable has a second shielding portion, and the fourth raised portion contacts the second shielding portion.

13. The electrical connector as claimed in claim 12, characterized in that: The second terminal module includes a fifth grounding plate, which has a ninth abutment portion, a tenth abutment portion, a third abutment spring arm, and a fourth abutment spring arm; wherein the ninth abutment portion contacts the second fixing portion of the second grounding terminal; the tenth abutment portion contacts the fourth fixing portion of the fourth grounding terminal; the third abutment spring arm cooperates with the second spring arm portion of the second grounding terminal; and the fourth abutment spring arm cooperates with the fourth spring arm portion of the fourth grounding terminal.

14. The electrical connector as claimed in claim 13, characterized in that: The second terminal module includes a sixth ground plane, which has an eleventh abutment portion, a twelfth abutment portion, and a sixth raised portion connecting the eleventh abutment portion and the twelfth abutment portion; the eleventh abutment portion contacts the second tail portion of the second grounding terminal; the twelfth abutment portion contacts the fourth tail portion of the fourth grounding terminal; and the sixth raised portion contacts the second shielding portion. The second tail of the second grounding terminal is clamped between the seventh abutment and the eleventh abutment; the fourth tail of the fourth grounding terminal is clamped between the eighth abutment and the twelfth abutment; the second shield is wrapped by the fourth raised portion and the sixth raised portion.

15. The electrical connector as claimed in claim 1, characterized in that: The mounting tail is provided with a fisheye hole, which makes the mounting tail flexible; the mounting tail is configured to be inserted into the conductive hole of the circuit board.

16. The electrical connector as claimed in claim 1, characterized in that: The electrical connector includes a third terminal module and a fourth terminal module, wherein the first terminal module is symmetrically arranged with respect to the third terminal module, and the second terminal module is symmetrically arranged with respect to the fourth terminal module.

17. The electrical connector as claimed in claim 16, characterized in that: The electrical connector includes a plurality of first additional conductive terminals located between the first terminal module and the third terminal module, and a plurality of second additional conductive terminals located between the second terminal module and the fourth terminal module; Each first additional conductive terminal includes a first additional spring arm portion and a first additional tail portion; the first additional spring arm portion is provided with a first additional contact portion protruding into the mating slot; the first additional tail portion is configured to be electrically connected to the circuit board. Each second additional conductive terminal includes a second additional spring arm portion and a second additional tail portion; the second additional spring arm portion is provided with a second additional contact portion protruding into the mating slot; the second additional tail portion is configured to be electrically connected to the circuit board. The first additional contact portion and the second additional contact portion are located on both sides of the mating slot, respectively.

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