Electric connector

Abstract

An electric connector comprises an insulating body and a first terminal module. The first terminal module comprises a first insulating block, a plurality of first conductive terminals and a first grounding piece. Each first conductive terminal comprises a first elastic contact arm, and the first elastic contact arm is provided with a first contact part. The plurality of first conductive terminals comprise a first differential signal terminal, a first grounding terminal and a second grounding terminal. The first elastic contact arm of the first grounding terminal is provided with a first through hole. The first grounding piece comprises a first grounding elastic arm, and the first grounding elastic arm is inserted into the first through hole. The first grounding elastic arm is provided with a first pressing part. And the first contact part of the first grounding terminal and the first pressing part of the first grounding elastic arm are configured to be in contact with a first grounding conducting strip of a first butt joint module together. According to the arrangement, the double contacts are formed, so that the shielding effect is improved, and the signal integrity is improved.

Description

Background Art

[0002] The electrical connector in the related art generally includes an insulating body and a terminal module mounted on the insulating body. The terminal module generally includes a differential signal terminal, a first grounding terminal located on one side of the differential signal terminal, and a second grounding terminal located on the other side of the differential signal terminal. In order to improve the grounding shielding effect, the terminal module in the related art may also include a grounding plate, which connects all the first grounding terminals and all the second grounding terminals in series.

[0003] When a docking module (such as a docking connector) is inserted into the electrical connector, the first grounding terminal and the second grounding terminal contact the first grounding plate and the second grounding plate on the docking module.

[0004] However, this design still has room for improvement to meet the requirements of better signal integrity. Summary of the invention

[0005] The object of the present invention is to provide an electrical connector with better shielding effect.

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

[0007] an insulating body, the insulating body comprising a docking surface and a first docking slot penetrating the docking surface, the first docking slot being configured to receive the first docking module along a docking direction; and

[0008] A first terminal module, the first terminal module comprising a first insulating block, a plurality of first conductive terminals fixed to the first insulating block, and a first grounding sheet located at one side of the first insulating block;

[0009] Each first conductive terminal includes a first fixing portion, a first elastic contact arm extending from one end of the first fixing portion, and a first tail portion extending from the other end of the first fixing portion; the first fixing portion is fixed to the first insulating block; the first elastic contact arm is provided with a first contact portion protruding into the first docking slot;

[0010] The plurality of first conductive terminals include a plurality of pairs of first differential signal terminals and a first grounding terminal and a second grounding terminal respectively located on both sides of each pair of first differential signal terminals; the first elastic contact arm of the first grounding terminal is provided with a first through hole;

[0011] The first grounding sheet includes a first base portion, the first base portion includes a first abutting portion contacting the first fixing portion of the first grounding terminal, a second abutting portion contacting the first fixing portion of the second grounding terminal, a first protrusion connecting the adjacent first abutting portion and the second abutting portion, and a first grounding elastic arm extending from the first abutting portion; the first protrusion is used to avoid the first differential signal terminal; the first grounding elastic arm is inserted into the first through hole; the first grounding elastic arm is provided with a first pressing portion;

[0012] The first contact portion of the first elastic contact arm of the first grounding terminal and the first pressing portion of the first grounding elastic arm are spaced apart along the docking direction, and the first contact portion of the first elastic contact arm of the first grounding terminal and the first pressing portion of the first grounding elastic arm are configured to jointly contact the first grounding conductive sheet of the first docking module.

[0013] As a further improved technical solution of the present invention, the first grounding elastic arm is provided with a first terminal portion connected to the first pressing portion, and the first terminal portion passes through the first through hole.

[0014] As a further improved technical solution of the present invention, the first elastic contact arm of the second grounding terminal is provided with a second through hole;

[0015] The first grounding sheet includes a second grounding elastic arm extending from the second abutting portion, wherein the second grounding elastic arm is inserted into the second through hole, and the second grounding elastic arm is provided with a second abutting portion;

[0016] The first contact portion of the first elastic contact arm of the second grounding terminal and the second pressing portion of the second grounding elastic arm are spaced apart along the docking direction, and the first contact portion of the first elastic contact arm of the second grounding terminal and the second pressing portion of the second grounding elastic arm are configured to jointly contact the second grounding conductive sheet of the first docking module.

[0017] As a further improved technical solution of the present invention, the second grounding elastic arm is provided with a second end portion connected to the second pressing portion, and the second end portion passes through the second through hole.

[0018] As a further improved technical solution of the present invention, the first terminal module includes a second grounding plate located on the other side of the first insulating block; the second grounding plate includes a second base portion, the second base portion includes a third abutting portion contacting the first fixed portion of the first grounding terminal, a fourth abutting portion contacting the first fixed portion of the second grounding terminal, and a second raised portion connecting the adjacent third abutting portion and the fourth abutting portion; the second raised portion is used to avoid the first differential signal terminal.

[0019] As a further improved technical solution of the present invention, each pair of first differential signal terminals is circumferentially surrounded by a first annular shielding cavity formed by the first grounding terminal, the second grounding terminal, the first grounding plate and the second grounding plate.

[0020] As a further improved technical solution of the present invention, the electrical connector further includes a second terminal module, the second terminal module includes a second insulating block, a plurality of second conductive terminals fixed to the second insulating block, and a third grounding sheet located on one side of the second insulating block;

[0021] Each second conductive terminal includes a second fixing portion, a second elastic contact arm extending from one end of the second fixing portion, and a second tail portion extending from the other end of the second fixing portion; the second fixing portion is fixed to the second insulating block; the second elastic contact arm is provided with a second contact portion protruding into the first docking slot;

[0022] The plurality of second conductive terminals include a plurality of pairs of second differential signal terminals and a third grounding terminal and a fourth grounding terminal respectively located on both sides of each pair of second differential signal terminals; the second elastic contact arm of the third grounding terminal is provided with a third through hole;

[0023] The third grounding sheet includes a third base portion, the third base portion includes a fifth abutting portion contacting the second fixing portion of the third grounding terminal, a sixth abutting portion contacting the second fixing portion of the fourth grounding terminal, a third protruding portion connecting the adjacent fifth abutting portion and the sixth abutting portion, and a third grounding elastic arm extending from the fifth abutting portion; the third protruding portion is used to avoid the second differential signal terminal; the third grounding elastic arm is inserted into the third through hole; the third grounding elastic arm is provided with a third pressing portion;

[0024] The second contact portion of the second elastic contact arm of the third grounding terminal and the third pressing portion of the third grounding elastic arm are spaced apart along the docking direction, and the second contact portion of the second elastic contact arm of the third grounding terminal and the third pressing portion of the third grounding elastic arm are configured to jointly contact the third grounding conductive sheet of the first docking module.

[0025] As a further improved technical solution of the present invention, the third grounding elastic arm is provided with a third end portion connected to the third pressing portion, and the third end portion passes through the third through hole.

[0026] As a further improved technical solution of the present invention, the second elastic contact arm of the fourth grounding terminal is provided with a fourth through hole;

[0027] The third grounding plate comprises a fourth grounding elastic arm extending from the sixth abutting portion, wherein the fourth grounding elastic arm is inserted into the fourth through hole, and the fourth grounding elastic arm is provided with a fourth abutting portion;

[0028] The second contact portion of the second elastic contact arm of the fourth grounding terminal and the fourth pressing portion of the fourth grounding elastic arm are spaced apart along the docking direction, and the second contact portion of the second elastic contact arm of the fourth grounding terminal and the fourth pressing portion of the fourth grounding elastic arm are configured to jointly contact the fourth grounding conductive sheet of the first docking module.

[0029] As a further improved technical solution of the present invention, the fourth grounding elastic arm is provided with a fourth end portion connected to the fourth pressing portion, and the fourth end portion passes through the fourth through hole.

[0030] As a further improved technical solution of the present invention, the second terminal module includes a fourth grounding plate located on the other side of the second insulating block; the fourth grounding plate includes a fourth base portion, and the fourth base portion includes a seventh abutment portion contacting the second fixed portion of the third grounding terminal, an eighth abutment portion contacting the second fixed portion of the fourth grounding terminal, and a fourth protrusion portion connecting the adjacent seventh abutment portion and the eighth abutment portion; the fourth protrusion portion is used to avoid the second differential signal terminal.

[0031] As a further improved technical solution of the present invention, each pair of second differential signal terminals is circumferentially surrounded by a second annular shielding cavity formed by the third grounding terminal, the fourth grounding terminal, the third grounding plate and the fourth grounding plate.

[0032] Compared with the prior art, the first contact portion of the first grounding terminal of the present invention and the first abutment portion of the first grounding elastic arm are arranged at intervals along the docking direction, and the first contact portion of the first grounding terminal and the first abutment portion of the first grounding elastic arm are configured to contact the first grounding conductive sheet of the first docking module together. In this way, by forming a double contact point, the reliability of the contact between the grounding structure of the first terminal module and the first grounding conductive sheet of the first docking module is improved, and the shielding effect is also improved, and the signal integrity is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional schematic diagram of the connector assembly of the present invention in the illustrated embodiment.

[0034] Figure 2 yes Figure 1 Partial exploded view of the .

[0035] Figure 3 yes Figure 2 Partial exploded perspective view from another angle.

[0036] Figure 4 It is a partial three-dimensional schematic diagram of the electrical connector of the present invention, in which several terminal modules are separated.

[0037] Figure 5 yes Figure 4 Partial exploded perspective view from another angle.

[0038] Figure 6 yes Figure 4 A three-dimensional schematic diagram of the first terminal module and the second terminal module.

[0039] Figure 7 Yes Figure 6 A three-dimensional schematic diagram of the first terminal module behind the first insulating block.

[0040] Figure 8 yes Figure 7 Left view of .

[0041] Fig. 9 yes Figure 6 A three-dimensional exploded view of the first terminal module.

[0042] Fig.10 yes Fig. 9 Exploded three-dimensional image from another angle.

[0043] Fig.11 Yes Figure 6 A three-dimensional schematic diagram of the second terminal module behind the second insulating block.

[0044] Fig.12 yes Fig.11 Left view of .

[0045] Fig.13 yes Figure 6 A three-dimensional exploded view of the second terminal module.

[0046] Fig.14 yes Fig.13 Exploded three-dimensional image from another angle.

[0047] Fig.15 is along Figure 2 Schematic diagram of the cross section along line AA.

[0048] Fig.16 yes Fig.15 A partial enlarged view of the middle frame portion B.

[0049] Fig.17 It is a partial three-dimensional exploded view of the connector assembly of the present invention from another angle.

[0050] Fig.18 yes Fig.17 A partial enlarged view of the circled portion C.

[0051] Fig.19 is along Figure 1 Schematic diagram of the cross section of the DD line.

[0052] Fig. 20 yes Fig.19 A partial enlarged view of the middle frame portion E. DETAILED DESCRIPTION

[0053] The exemplary embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. If there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; on the contrary, they are only examples of devices, products and / or methods consistent with some aspects of the present invention as recorded in the claims of the present invention.

[0054] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the scope of protection of the present invention. The singular forms "a", "said" or "the" used in the specification and claims of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.

[0055] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the existence of at least one. Unless otherwise specified, words such as "front", "rear", "upper", "lower" and similar words appearing in the present invention are only for the convenience of explanation and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprise" are an open-ended expression, meaning that the elements appearing before "include" or "comprise" include the elements appearing after "include" or "comprise" and their equivalents, which does not exclude that the elements appearing before "include" or "comprise" may also include other elements. If "several" appears in the present invention, it means two or more.

[0056] Please refer to Figures 1 to 20 As shown, the present invention discloses a connector assembly, which includes an electrical connector 100 and a docking module 200 connected to the electrical connector 100. In one embodiment of the present invention, the electrical connector 100 is used to be installed on a circuit board (not shown). The docking module 200 is configured to be inserted into the electrical connector 100 along a docking direction M. In one embodiment of the present invention, the docking module 200 is an SFP (Small Form Pluggable) plug connector. In the illustrated embodiment of the present invention, the docking module 200 includes a first docking module 200a and a second docking module 200b. The first docking module 200a is the same as the second docking module 200b, and the following description will only take the first docking module 200a as an example.

[0057] Please combine Figure 2 as well as Figure 3 As shown, the first docking module 200 a includes a first surface 201 , a second surface 202 opposite to the first surface 201 , a plurality of first conductive sheets 203 exposed to the first surface 201 , and a plurality of second conductive sheets 204 exposed to the second surface 202 .

[0058] In the illustrated embodiment of the present invention, the plurality of first conductive sheets 203 include a first ground conductive sheet 2031, a second ground conductive sheet 2032, a plurality of first signal conductive sheets 2033, and a plurality of second signal conductive sheets 2034. In particular, along the mating direction M, the plurality of first signal conductive sheets 2033 are two and are arranged at intervals to form a group; along the mating direction M, the plurality of second signal conductive sheets 2034 are two and are arranged at intervals to form a group. The first signal conductive sheet 2033 and the second signal conductive sheet 2034 constitute a first differential signal conductive sheet DP1', wherein a first ground conductive sheet 2031 is arranged on one side of the first differential signal conductive sheet DP1', and a second ground conductive sheet 2032 is arranged on the other side of the first differential signal conductive sheet DP1'. The length of each first ground conductive sheet 2031 and each second ground conductive sheet 2032 is greater than the length of each group of the first signal conductive sheets 2033 and the length of each group of the second signal conductive sheets 2034.

[0059] Similarly, in the illustrated embodiment of the present invention, the plurality of second conductive sheets 204 include a third ground conductive sheet 2041, a fourth ground conductive sheet 2042, a plurality of third signal conductive sheets 2043, and a plurality of fourth signal conductive sheets 2044. In particular, along the mating direction M, the plurality of third signal conductive sheets 2043 are two and are arranged at intervals to form a group; along the mating direction M, the plurality of fourth signal conductive sheets 2044 are two and are arranged at intervals to form a group. The third signal conductive sheets 2043 and the fourth signal conductive sheets 2044 constitute a second differential signal conductive sheet DP2', wherein a third ground conductive sheet 2041 is provided on one side of the second differential signal conductive sheet DP2', and a fourth ground conductive sheet 2042 is provided on the other side of the second differential signal conductive sheet DP2'. The length of each of the third ground conductive sheets 2041 and each of the fourth ground conductive sheets 2042 is greater than the length of each group of the third signal conductive sheets 2043 and the length of each group of the fourth signal conductive sheets 2044.

[0060] Please combine Figure 4 as well as Figure 5 As shown, in the illustrated embodiment of the present invention, the electrical connector 100 includes an insulating body 1 and a plurality of terminal modules mounted on the insulating body 1 .

[0061] The insulating body 1 includes a mounting surface 11 (e.g., a lower surface) configured to be mounted on the circuit board, a docking surface 13 (e.g., an upper surface) opposite to the mounting surface 11, a docking slot 12 penetrating the docking surface 13, and a mounting groove 14 penetrating the mounting surface 11. In the illustrated embodiment of the present invention, the docking slot 12 includes a first docking slot 121 and a second docking slot 122 arranged at intervals. The mounting groove 14 includes a first mounting groove 141 communicating with the first docking slot 121, a second mounting groove 142 communicating with the first docking slot 121, a third mounting groove 143 communicating with the second docking slot 122, and a fourth mounting groove 144 communicating with the second docking slot 122.

[0062] Please combine Figures 6 to 10 As shown, in the illustrated embodiment of the present invention, the terminal module includes a first terminal module 21, a second terminal module 22, a third terminal module 23 and a fourth terminal module 24, wherein the first terminal module 21 and the second terminal module 22 form a first group 1a to be assembled and fixed in the first mounting groove 141 and the second mounting groove 142; the third terminal module 23 and the fourth terminal module 24 form a second group 1b to be assembled and fixed in the third mounting groove 143 and the fourth mounting groove 144. In the illustrated embodiment of the present invention, the first terminal module 21 is the same as the third terminal module 23, and the second terminal module 22 is the same as the fourth terminal module 24. The following is a detailed description taking only the first terminal module 21 and the second terminal module 22 as examples.

[0063] The first terminal module 21 includes a first insulating block 210, a plurality of first conductive terminals 211 fixed to the first insulating block 210, a first grounding plate 212 located on one side of the first insulating block 210, and a second grounding plate 213 located on the other side of the first insulating block 210. In the illustrated embodiment of the present invention, the plurality of first conductive terminals 211 are embedded in the first insulating block 210, and the first grounding plate 212 and the second grounding plate 213 are assembled and fixed to the first insulating block 210. The first insulating block 210 is installed and fixed in the first installation groove 141. Of course, in other embodiments, the first conductive terminal 211, the first grounding plate 212 and the second grounding plate 213 may also be embedded in the first insulating block 210; or the first conductive terminal 211, the first grounding plate 212 and the second grounding plate 213 may also be assembled and fixed to the first insulating block 210.

[0064] Each first conductive terminal 211 includes a first fixed portion 2110, a first elastic contact arm 2111 extending from one end of the first fixed portion 2110, and a first tail portion 2112 extending from the other end of the first fixed portion 2110. The first fixed portion 2110 is partially fixed to the first insulating block 210. The first elastic contact arm 2111 is provided with a first contact portion 2111c protruding into the first docking slot 121. The first tail portion 2112 extends out of the first insulating block 210 to be electrically connected to the circuit board. In the illustrated embodiment of the present invention, the plurality of first conductive terminals 211 include a plurality of pairs of first differential signal terminals DP1 and a first grounding terminal G1 and a second grounding terminal G2 respectively located on both sides of each pair of first differential signal terminals DP1. Each pair of first differential signal terminals DP1 includes two first signal terminals S1. The width of the first grounding terminal G1 is generally greater than the width of each first signal terminal S1, and the width of the second grounding terminal G2 is generally greater than the width of each first signal terminal S1. With such configuration, the first terminal module 21 can better transmit high-speed signals, reduce external interference, and improve signal transmission quality. In the illustrated embodiment of the present invention, the first elastic contact arm 2111 of the first grounding terminal G1 is provided with a first through hole 2111a, and the first elastic contact arm 2111 of the second grounding terminal G2 is provided with a second through hole 2111b. In the illustrated embodiment of the present invention, the first through hole 2111a and the second through hole 2111b are waist-shaped holes.

[0065] The first grounding sheet 212 includes a first base portion 2121, a plurality of first grounding elastic arms 2122 integrally extending from the first base portion 2121, and a plurality of second grounding elastic arms 2123 integrally extending from the first base portion 2121. The first base portion 2121 includes a first abutting portion 2121a in contact with the first fixing portion 2110 of the first grounding terminal G1, a second abutting portion 2121b in contact with the first fixing portion 2110 of the second grounding terminal G2, and a first protrusion 2121c connecting the adjacent first abutting portions 2121a and second abutting portions 2121b. The first abutting portions 2121a and the second abutting portions 2121b are in contact with the corresponding first grounding terminal G1 and second grounding terminal G2, so that all the first grounding terminals G1 and all the second grounding terminals G2 are connected in series, thereby improving the grounding shielding effect. The first protrusion 2121c is used to avoid the first differential signal terminal DP1 to prevent a short circuit caused by contact with the first differential signal terminal DP1.

[0066] In the illustrated embodiment of the present invention, the first grounding elastic arm 2122 is inserted into the first through hole 2111a to contact the first elastic contact arm 2111 of the first grounding terminal G1. The second grounding elastic arm 2123 is inserted into the second through hole 2111b to contact the first elastic contact arm 2111 of the second grounding terminal G2.

[0067] Specifically, in the illustrated embodiment of the present invention, the first grounding elastic arm 2122 is provided with a first pressing portion 2122c and a first terminal portion 2122d connected to the first pressing portion 2122c, and the first terminal portion 2122d passes through the first through hole 2111a. The second grounding elastic arm 2123 is provided with a second pressing portion 2123c and a second terminal portion 2123d connected to the second pressing portion 2123c, and the second terminal portion 2123d passes through the second through hole 2111b.

[0068] Please combine Figure 8 As shown by the dotted line in the figure, in the embodiment of the present invention, the first contact portion 2111c of the first elastic contact arm 2111 of the first grounding terminal G1 is flush with the first pressing portion 2122c of the first grounding elastic arm 2122. The first contact portion 2111c of the first elastic contact arm 2111 of the first grounding terminal G1 and the first pressing portion 2122c of the first grounding elastic arm 2122 are arranged at intervals along the docking direction M, and the first contact portion 2111c of the first elastic contact arm 2111 of the first grounding terminal G1 and the first pressing portion 2122c of the first grounding elastic arm 2122 are configured to contact the first grounding conductive sheet 2031 of the first docking module 200 together. In this way, by forming a double contact point, the reliability of the first elastic contact arm 2111 of the first grounding terminal G1 and the first grounding elastic arm 2122 of the first grounding sheet 212 contacting the first grounding conductive sheet 2031 of the first docking module 200a is improved, and the shielding effect is also improved, and the signal integrity is improved.

[0069] Similarly, the first contact portion 2111c of the first elastic contact arm 2111 of the second grounding terminal G2 and the second pressing portion 2123c of the second grounding elastic arm 2123 are arranged at intervals along the docking direction M, and the first contact portion 2111c of the first elastic contact arm 2111 of the second grounding terminal G2 and the second pressing portion 2123c of the second grounding elastic arm 2123 are configured to contact the second grounding conductive sheet 2032 of the first docking module 200 together. In this way, by forming double contact points, the reliability of the first elastic contact arm 2111 of the second grounding terminal G2 and the second grounding elastic arm 2123 of the first grounding sheet 212 contacting the second grounding conductive sheet 2032 of the first docking module 200a is improved, and the shielding effect is also improved, and the signal integrity is improved.

[0070] The second grounding sheet 213 includes a second base portion 2131. The second base portion 2131 includes a third abutting portion 2131a in contact with the first fixing portion 2110 of the first grounding terminal G1, a fourth abutting portion 2131b in contact with the first fixing portion 2110 of the second grounding terminal G2, and a second protrusion 2131c connecting the adjacent third abutting portions 2131a and the fourth abutting portions 2131b. The third abutting portion 2131a and the fourth abutting portion 2131b are in contact with the corresponding first grounding terminal G1 and the second grounding terminal G2, thereby increasing the grounding area and further improving the grounding shielding effect. The second protrusion 2131c is used to avoid the first differential signal terminal DP1 to avoid a short circuit caused by contact with the first differential signal terminal DP1.

[0071] Those skilled in the art will appreciate that, in the illustrated embodiment of the present invention, the first base portion 2121 of the first grounding sheet 212 and the second base portion 2131 of the second grounding sheet 213 are symmetrically disposed on both sides of the first conductive terminal 211. As for the first fixed portion 2110 of the first grounding terminal G1, the two side surfaces of the first fixed portion 2110 of the first grounding terminal G1 are in contact with the first abutting portion 2121a of the first grounding sheet 212 and the third abutting portion 2131a of the second grounding sheet 213, respectively; as for the first fixed portion 2110 of the second grounding terminal G2, the two side surfaces of the first fixed portion 2110 of the second grounding terminal G2 are in contact with the second abutting portion 2121b of the first grounding sheet 212 and the fourth abutting portion 2131b of the second grounding sheet 213, respectively. Please refer to FIG. Fig.15 and Fig.16As shown, each pair of first differential signal terminals DP1 is circumferentially surrounded by a first annular shielding cavity 214 formed by the first ground terminal G1, the second ground terminal G2, the first grounding plate 212 and the second grounding plate 213, thereby greatly reducing distortion during signal transmission.

[0072] Please refer to Figures 11 to 14 As shown, the second terminal module 22 includes a second insulating block 220, a plurality of second conductive terminals 221 fixed to the second insulating block 220, a third grounding plate 222 located on one side of the second insulating block 220, and a fourth grounding plate 223 located on the other side of the second insulating block 220. In the illustrated embodiment of the present invention, the plurality of second conductive terminals 221 are embedded in the second insulating block 220, and the third grounding plate 222 and the fourth grounding plate 223 are assembled and fixed to the second insulating block 220. The second insulating block 220 is installed and fixed in the second installation groove 142. Of course, in other embodiments, the second conductive terminal 221, the third grounding plate 222 and the fourth grounding plate 223 can also be embedded in the second insulating block 220; or the second conductive terminal 221, the third grounding plate 222 and the fourth grounding plate 223 can also be assembled and fixed to the second insulating block 220.

[0073] Each second conductive terminal 221 includes a second fixed portion 2210, a second elastic contact arm 2211 extending from one end of the second fixed portion 2210, and a second tail portion 2212 extending from the other end of the second fixed portion 2210. The second fixed portion 2210 is partially fixed to the second insulating block 220. The second elastic contact arm 2211 is provided with a second contact portion 2211c protruding into the first docking slot 121. The second tail portion 2212 extends out of the second insulating block 220 to be electrically connected to the circuit board. In the illustrated embodiment of the present invention, the plurality of second conductive terminals 221 include a plurality of pairs of second differential signal terminals DP2 and a third grounding terminal G3 and a fourth grounding terminal G4 respectively located on both sides of each pair of second differential signal terminals DP2. Each pair of second differential signal terminals DP2 includes two second signal terminals S2. The width of the third grounding terminal G3 is generally greater than the width of each second signal terminal S2, and the width of the fourth grounding terminal G4 is generally greater than the width of each second signal terminal S2. With such arrangement, the second terminal module 22 can better transmit high-speed signals, reduce external interference, and improve signal transmission quality. In the illustrated embodiment of the present invention, the second elastic contact arm 2211 of the third grounding terminal G3 is provided with a third through-hole 2211a, and the second elastic contact arm 2211 of the fourth grounding terminal G4 is provided with a fourth through-hole 2211b. In the illustrated embodiment of the present invention, the third through-hole 2211a and the fourth through-hole 2211b are waist-shaped holes.

[0074] The third grounding sheet 222 includes a third base portion 2221, a plurality of third grounding elastic arms 2222 integrally extending from the third base portion 2221, and a plurality of fourth grounding elastic arms 2223 integrally extending from the third base portion 2221. The third base portion 2221 includes a fifth abutting portion 2221a in contact with the second fixing portion 2210 of the third grounding terminal G3, a sixth abutting portion 2221b in contact with the second fixing portion 2210 of the fourth grounding terminal G4, and a third protrusion 2221c connecting the adjacent fifth abutting portion 2221a and the sixth abutting portion 2221b. The fifth abutting portion 2221a and the sixth abutting portion 2221b are in contact with the corresponding third grounding terminal G3 and the fourth grounding terminal G4, so that all the third grounding terminals G3 and all the fourth grounding terminals G4 are connected in series, thereby improving the grounding shielding effect. The third protrusion 2221c is used to avoid the second differential signal terminal DP2 to avoid a short circuit caused by contact with the second differential signal terminal DP2.

[0075] In the illustrated embodiment of the present invention, the third grounding elastic arm 2222 is inserted into the third through hole 2211a to contact the second elastic contact arm 2211 of the third grounding terminal G3. The fourth grounding elastic arm 2223 is inserted into the fourth through hole 2211b to contact the second elastic contact arm 2211 of the fourth grounding terminal G4.

[0076] Specifically, in the illustrated embodiment of the present invention, the third grounding elastic arm 2222 is provided with a third pressing portion 2222c and a third terminal portion 2222d connected to the third pressing portion 2222c, and the third terminal portion 2222d passes through the third through hole 2211a. The fourth grounding elastic arm 2223 is provided with a fourth pressing portion 2223c and a fourth terminal portion 2223d connected to the fourth pressing portion 2223c, and the fourth terminal portion 2223d passes through the fourth through hole 2211b.

[0077] Since the first through hole 2111a, the second through hole 2111b, the third through hole 2211a and the fourth through hole 2211b are all waist-shaped holes, during the insertion of the first docking module 200a, the first end portion 2122d can move slightly in the first through hole 2111a, the second end portion 2123d can move slightly in the second through hole 2111b, the third end portion 2222d can move slightly in the third through hole 2211a, and the fourth end portion 2223d can move slightly in the fourth through hole 2211b.

[0078] Please combine Fig.12 As shown by the dotted line in FIG, in the illustrated embodiment of the present invention, the second contact portion 2211c of the second elastic contact arm 2211 of the third grounding terminal G3 is flush with the third pressing portion 2222c of the third grounding elastic arm 2222. The second contact portion 2211c of the second elastic contact arm 2211 of the third grounding terminal G3 and the third pressing portion 2222c of the third grounding elastic arm 2222 are arranged at intervals along the docking direction M, and the second contact portion 2211c of the second elastic contact arm 2211 of the third grounding terminal G3 and the third pressing portion 2222c of the third grounding elastic arm 2222 are configured to contact the third grounding conductive sheet 2041 of the first docking module 200 together. Such a setting, by forming double contacts, improves the reliability of the contact between the second elastic contact arm 2211 of the third grounding terminal G3 and the third grounding elastic arm 2222 of the third grounding plate 222 and the third grounding conductive plate 2041 of the first docking module 200a, while also improving the shielding effect and improving signal integrity.

[0079] Similarly, the second contact portion 2211c of the second elastic contact arm 2211 of the fourth grounding terminal G4 and the fourth pressing portion 2223c of the fourth grounding elastic arm 2223 are arranged at intervals along the docking direction M, and the second contact portion 2211c of the second elastic contact arm 2211 of the fourth grounding terminal G4 and the fourth pressing portion 2223c of the fourth grounding elastic arm 2223 are configured to be in common contact with the fourth grounding conductive sheet 2042 of the first docking module 200. In this way, by forming double contact points, the reliability of the second elastic contact arm 2211 of the fourth grounding terminal G4 and the fourth grounding elastic arm 2223 of the third grounding sheet 222 in contact with the fourth grounding conductive sheet 2042 of the first docking module 200a is improved, and the shielding effect is also improved, thereby improving the signal integrity.

[0080] The fourth grounding sheet 223 includes a fourth base portion 2231. The fourth base portion 2231 includes a seventh abutting portion 2231a in contact with the second fixing portion 2210 of the third grounding terminal G3, an eighth abutting portion 2231b in contact with the second fixing portion 2210 of the fourth grounding terminal G4, and a fourth protrusion 2231c connecting the adjacent seventh abutting portion 2231a and the eighth abutting portion 2231b. The seventh abutting portion 2231a and the eighth abutting portion 2231b are in contact with the corresponding third grounding terminal G3 and the fourth grounding terminal G4, thereby increasing the grounding area and further improving the grounding shielding effect. The fourth protrusion 2231c is used to avoid the second differential signal terminal DP2 to avoid a short circuit caused by contact with the second differential signal terminal DP2.

[0081] Those skilled in the art will appreciate that, in the illustrated embodiment of the present invention, the third base portion 2221 of the third grounding sheet 222 and the fourth base portion 2231 of the fourth grounding sheet 223 are symmetrically arranged on both sides of the second conductive terminal 221. As for the second fixing portion 2210 of the third grounding terminal G3, the two side surfaces of the second fixing portion 2210 of the third grounding terminal G3 are in contact with the fifth abutting portion 2221a of the third grounding sheet 222 and the seventh abutting portion 2231a of the fourth grounding sheet 223, respectively; as for the second fixing portion 2210 of the fourth grounding terminal G4, the two side surfaces of the second fixing portion 2210 of the fourth grounding terminal G4 are in contact with the sixth abutting portion 2221b of the third grounding sheet 222 and the eighth abutting portion 2231b of the fourth grounding sheet 223, respectively. Please refer to FIG. Fig.15 and Fig.16As shown, each pair of second differential signal terminals DP2 is circumferentially surrounded by a second annular shielding cavity 224 formed by the third grounding terminal G3, the fourth grounding terminal G4, the third grounding plate 222 and the fourth grounding plate 223, thereby greatly reducing distortion during signal transmission.

[0082] In the illustrated embodiment of the present invention, the first elastic contact arm 2111 and the second elastic contact arm 2211 extend into the first docking slot 121. The first elastic contact arm 2111 and the second elastic contact arm 2211 are respectively located on both sides of the first docking slot 121. The first elastic contact arm 2111 protrudes toward the second elastic contact arm 2211, and the second elastic contact arm 2211 protrudes toward the first elastic contact arm 2111. In this way, the first elastic contact arm 2111 and the second elastic contact arm 2211 can jointly clamp the first docking module 200a to improve docking reliability.

[0083] The above implementation modes are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present invention should be based on the technical personnel in the relevant technical field. Although the present invention has been described in detail in this specification with reference to the above implementation modes, the ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. An electrical connector (100), characterized in that: include: An insulating body (1), the insulating body (1) comprising a docking surface (13) and a first docking slot (121) penetrating the docking surface (13), the first docking slot (121) being configured to receive a first docking module (200a) along a docking direction (M); and A first terminal module (21), the first terminal module (21) comprising a first insulating block (210), a plurality of first conductive terminals (211) fixed to the first insulating block (210), and a first grounding sheet (212) located on one side of the first insulating block (210); Each first conductive terminal (211) comprises a first fixing portion (2110), a first elastic contact arm (2111) extending from one end of the first fixing portion (2110), and a first tail portion (2112) extending from the other end of the first fixing portion (2110); the first fixing portion (2110) is fixed to the first insulating block (210); the first elastic contact arm (2111) is provided with a first contact portion (2111c) protruding into the first docking slot (121); The plurality of first conductive terminals (211) include a plurality of pairs of first differential signal terminals (DP1) and a first grounding terminal (G1) and a second grounding terminal (G2) respectively located on both sides of each pair of first differential signal terminals (DP1); the first elastic contact arm (2111) of the first grounding terminal (G1) is provided with a first through hole (2111a); The first grounding sheet (212) comprises a first base portion (2121), the first base portion (2121) comprising a first abutting portion (2121a) in contact with the first fixing portion (2110) of the first grounding terminal (G1), a second abutting portion (2121b) in contact with the first fixing portion (2110) of the second grounding terminal (G2), a first protruding portion (2121c) connecting the adjacent first abutting portion (2121a) and the second abutting portion (2121b), and a first grounding elastic arm (2122) extending from the first abutting portion (2121a); ​​the first protruding portion (2121c) is used to avoid the first differential signal terminal (DP1); the first grounding elastic arm (2122) is inserted into the first through hole (2111a); the first grounding elastic arm (2122) is provided with a first pressing portion (2122c); The first contact portion (2111c) of the first elastic contact arm (2111) of the first grounding terminal (G1) and the first pressing portion (2122c) of the first grounding elastic arm (2122) are arranged at intervals along the docking direction (M), and the first contact portion (2111c) of the first elastic contact arm (2111) of the first grounding terminal (G1) and the first pressing portion (2122c) of the first grounding elastic arm (2122) are configured to jointly contact the first grounding conductive sheet (2031) of the first docking module (200a).

2. The electrical connector (100) according to claim 1, characterized in that: The first grounding elastic arm (2122) is provided with a first end portion (2122d) connected to the first pressing portion (2122c), and the first end portion (2122d) passes through the first through hole (2111a).

3. The electrical connector (100) according to claim 1, characterized in that: The first elastic contact arm (2111) of the second grounding terminal (G2) is provided with a second through hole (2111b); The first grounding sheet (212) comprises a second grounding elastic arm (2123) extending from the second abutting portion (2121b), wherein the second grounding elastic arm (2123) is inserted into the second through hole (2111b), and the second grounding elastic arm (2123) is provided with a second abutting portion (2123c); The first contact portion (2111c) of the first elastic contact arm (2111) of the second grounding terminal (G2) and the second pressing portion (2123c) of the second grounding elastic arm (2123) are arranged at intervals along the docking direction (M), and the first contact portion (2111c) of the first elastic contact arm (2111) of the second grounding terminal (G2) and the second pressing portion (2123c) of the second grounding elastic arm (2123) are configured to jointly contact the second grounding conductive sheet (2032) of the first docking module (200a).

4. The electrical connector (100) according to claim 3, characterized in that: The second grounding elastic arm (2123) is provided with a second end portion (2123d) connected to the second pressing portion (2123c), and the second end portion (2123d) passes through the second through hole (2111b).

5. The electrical connector (100) according to claim 1, characterized in that: The first terminal module (21) includes a second grounding plate (213) located on the other side of the first insulating block (210); the second grounding plate (213) includes a second base portion (2131), and the second base portion (2131) includes a third abutting portion (2131a) in contact with the first fixing portion (2110) of the first grounding terminal (G1), a fourth abutting portion (2131b) in contact with the first fixing portion (2110) of the second grounding terminal (G2), and a second protruding portion (2131c) connecting the adjacent third abutting portion (2131a) and the fourth abutting portion (2131b); the second protruding portion (2131c) is used to avoid the first differential signal terminal (DP1).

6. The electrical connector (100) according to claim 5, characterized in that: Each pair of first differential signal terminals (DP1) is surrounded in the circumferential direction by a first annular shielding cavity (214) formed by the first grounding terminal (G1), the second grounding terminal (G2), the first grounding plate (212) and the second grounding plate (213).

7. The electrical connector (100) according to claim 1, characterized in that: The electrical connector (100) further comprises a second terminal module (22), the second terminal module (22) comprising a second insulating block (220), a plurality of second conductive terminals (221) fixed to the second insulating block (220), and a third grounding plate (222) located on one side of the second insulating block (220); Each second conductive terminal (221) comprises a second fixing portion (2210), a second elastic contact arm (2211) extending from one end of the second fixing portion (2210), and a second tail portion (2212) extending from the other end of the second fixing portion (2210); the second fixing portion (2210) is fixed to the second insulating block (220); the second elastic contact arm (2211) is provided with a second contact portion (2211c) protruding into the first docking slot (121); The plurality of second conductive terminals (221) include a plurality of pairs of second differential signal terminals (DP2) and a third grounding terminal (G3) and a fourth grounding terminal (G4) respectively located on both sides of each pair of second differential signal terminals (DP2); the second elastic contact arm (2211) of the third grounding terminal (G3) is provided with a third through hole (2211a); The third grounding sheet (222) comprises a third base portion (2221), the third base portion (2221) comprises a fifth abutting portion (2221a) in contact with the second fixing portion (2210) of the third grounding terminal (G3), a sixth abutting portion (2221b) in contact with the second fixing portion (2210) of the fourth grounding terminal (G4), a third protruding portion (2221c) connecting the adjacent fifth abutting portion (2221a) and the sixth abutting portion (2221b), and a third grounding elastic arm (2222) extending from the fifth abutting portion (2221a); ​​the third protruding portion (2221c) is used to avoid the second differential signal terminal (DP2); the third grounding elastic arm (2222) is inserted into the third through hole (2211a); the third grounding elastic arm (2222) is provided with a third pressing portion (2222c); The second contact portion (2211c) of the second elastic contact arm (2211) of the third grounding terminal (G3) and the third pressing portion (2222c) of the third grounding elastic arm (2222) are arranged at intervals along the docking direction (M), and the second contact portion (2211c) of the second elastic contact arm (2211) of the third grounding terminal (G3) and the third pressing portion (2222c) of the third grounding elastic arm (2222) are configured to jointly contact the third grounding conductive sheet (2041) of the first docking module (200a).

8. The electrical connector (100) according to claim 7, characterized in that: The third grounding elastic arm (2222) is provided with a third end portion (2222d) connected to the third pressing portion (2222c), and the third end portion (2222d) passes through the third through hole (2211a).

9. The electrical connector (100) according to claim 7, characterized in that: The second elastic contact arm (2211) of the fourth grounding terminal (G4) is provided with a fourth through hole (2211b); The third grounding plate (222) comprises a fourth grounding elastic arm (2223) extending from the sixth abutting portion (2221b), wherein the fourth grounding elastic arm (2223) is inserted into the fourth through hole (2211b), and the fourth grounding elastic arm (2223) is provided with a fourth abutting portion (2223c); The second contact portion (2211c) of the second elastic contact arm (2211) of the fourth grounding terminal (G4) and the fourth pressing portion (2223c) of the fourth grounding elastic arm (2223) are arranged at intervals along the docking direction (M), and the second contact portion (2211c) of the second elastic contact arm (2211) of the fourth grounding terminal (G4) and the fourth pressing portion (2223c) of the fourth grounding elastic arm (2223) are configured to jointly contact the fourth grounding conductive sheet (2042) of the first docking module (200a).

10. The electrical connector (100) according to claim 9, characterized in that: The fourth grounding elastic arm (2223) is provided with a fourth end portion (2223d) connected to the fourth pressing portion (2223c), and the fourth end portion (2223d) passes through the fourth through hole (2211b).

11. The electrical connector (100) according to claim 7, characterized in that: The second terminal module (22) includes a fourth grounding plate (223) located on the other side of the second insulating block (220); the fourth grounding plate (223) includes a fourth base portion (2231), and the fourth base portion (2231) includes a seventh abutting portion (2231a) in contact with the second fixed portion (2210) of the third grounding terminal (G3), an eighth abutting portion (2231b) in contact with the second fixed portion (2210) of the fourth grounding terminal (G4), and a fourth protrusion portion (2231c) connecting the adjacent seventh abutting portion (2231a) and the eighth abutting portion (2231b); the fourth protrusion portion (2231c) is used to avoid the second differential signal terminal (DP2).

12. The electrical connector (100) according to claim 11, characterized in that: Each pair of second differential signal terminals (DP2) is circumferentially surrounded by a second annular shielding cavity (224) formed by the third grounding terminal (G3), the fourth grounding terminal (G4), the third grounding plate (222) and the fourth grounding plate (223).

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