ELECTRICAL CONNECTOR WITH IMPROVED GROUNDING EFFECT

Abstract

An electrical connector comprises a conductive housing, a first terminal module, and a first ground plate. The conductive housing defines a receiving slot. The conductive housing includes a first conductive housing. The first terminal module comprises a number of first conductive terminals. The first conductive terminal comprises a first fixing section and a first contact section. The first contact section projects into the receiving slot. The first conductive terminal is not in contact with the first conductive housing. The first ground plate comprises a first mounting plate and a second mounting plate. The first mounting plate is fixed to the first conductive housing. The second mounting plate has a first elastic ground arm that projects into the receiving slot.

Description

CROSS-REFERENCE TO RELATED REGISTRATION

[0001] This patent application claims priority over Chinese patent application No. 202311287150.0, filed on September 28, 2023, entitled “ELECTRIC CONNECTOR”, the entire contents of which are incorporated herein by reference. TECHNICAL AREA

[0002] The present invention relates to an electrical connector, which belongs to the technical field of connectors. BACKGROUND

[0003] An electrical connector in the prior art comprises an insulating housing, a plurality of conductive terminals mounted on the insulating housing, and a metal shell enclosing the insulating housing. The plurality of conductive terminals comprises a plurality of signal terminals. However, as the requirements for signal transmission quality in electrical connectors continue to increase, there is still room for improvement in electrical connectors using related technologies. SUMMARY

[0004] One objective of the present invention is to provide an electrical connector with improved grounding effect.

[0005] To achieve the above objective, the present invention adopts the following technical solution: an electrical connector comprising: a conductive housing, wherein the conductive housing defines a receiving slot configured to at least partially receive a mating module along a first direction; wherein the conductive housing comprises a first conductive housing; a first terminal module, wherein the first terminal module is at least partially arranged in the first conductive housing; wherein the first terminal module comprises a plurality of first conductive terminals; wherein the first conductive terminal comprises a first fixing section and a first contact section; wherein the first contact section projects into the receiving slot and is configured to be electrically connected to the mating module; wherein the first conductive terminal is not in contact with the first conductive housing;and a first ground plate, wherein the first ground plate comprises a first mounting plate and a second mounting plate opposite the first mounting plate; wherein the first mounting plate is mounted on the first conductive housing; wherein the second mounting plate is provided with a first elastic mass arm projecting into the receiving slot.

[0006] Furthermore, the first conductive housing comprises a first projecting section located on one side of the receiving slot; wherein the first projecting section comprises a second lower surface exposed to the receiving slot, a second upper surface opposite the second lower surface, and a first positioning post projecting beyond the second upper surface; wherein the first mounting plate at least partially covers the second upper surface; wherein the first mounting plate defines a first mounting hole for fixing the first positioning post.

[0007] Furthermore, the first ground plate comprises a first connecting plate that joins one side of the first mounting plate and one side of the second mounting plate; the electrical connector comprises a first insulating fixing block that is fixed to the first conductive housing; wherein the first insulating fixing block comprises a first front surface that is adjacent to a front end of the receiving slot; the first connecting plate abuts the first front surface of the first insulating fixing block and at least partially covers it.

[0008] Furthermore, one end of the first elastic mass arm is fixed, and another end of the first elastic mass arm is movable along the first direction after the counter module is inserted into the receiving slot.

[0009] Furthermore, the first ground plate includes a first extension plate extending from another side of the second mounting plate; the first projecting section defines a first recess opposite the second lower surface; the first extension plate is received in the first recess.

[0010] Furthermore, the first extension plate is a movable end; and the first extension plate is movable along the first direction.

[0011] Furthermore, the first foreground section includes a first mounting block that projects into the first recess; the first extension plate defines a first mounting hole to accommodate the first mounting block.

[0012] Furthermore, one dimension of the first mounting hole along the first direction is larger than one dimension of the first mounting block along the first direction.

[0013] Furthermore, the first conductive housing defines a first filling groove; wherein the first insulating fixing block is molded into the first filling groove to be integrated with the first conductive housing.

[0014] Furthermore, the first insulating fixing block includes a first slot and a second slot; wherein the first slot and the second slot are arranged side by side along a second direction; wherein the second direction is perpendicular to the first direction; wherein the first conductive terminal includes a first contact arm connected to the first fixing section; wherein the first contact section is provided on the first contact arm; wherein the first terminal module comprises two first conductive terminals, which are a first signal terminal and a second signal terminal, respectively; the first contact arm of the first signal terminal extends at least partially into the first slot; the first contact arm of the second signal terminal extends at least partially into the second slot.

[0015] Compared to the prior art, the conductive housing replaces the insulating housing, thereby improving the shielding effect and the quality of signal transmission. Furthermore, the present disclosure includes the first grounding plate, and the first mounting plate is fixed to the first conductive housing, thereby increasing the grounding area and improving the grounding effect. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a perspective schematic view of a connector assembly according to an embodiment of the present invention; Fig. 2 is a perspective view of Fig. 1 from a different angle; Fig. 3 is a partially explosive perspective view of Fig. 1; Fig. 4 is a partially explosive perspective view of Fig. 3 from a different angle; Fig. Figure 5 is a partially enlarged view of a circled section C in Fig. 4; Fig. 6 is a top view of an electrical connector, a mating module and a printed circuit board according to an embodiment of the present invention; Fig. 7 is a sub-view of Fig. 6; Fig. Figure 8 is a front view of the electrical connector according to one embodiment of the present invention; Fig. 9 is a legal opinion of Fig. 8; Fig. Figure 10 is a partially explosive perspective view of the scene in Fig. 3 electrical connectors shown; Fig. Figure 11 is another partially explosive perspective representation of Fig. 10; Fig. 12 is a partially explosive perspective view of Fig. 11 from a different angle; Fig. 13 is a top view of an assembly block in Fig. 11; Fig. Figure 14 shows a rear view of the electrical connector when the mounting block is separated; Fig. Figure 15 is a view from below of the electrical connector when the mounting block is detached; Fig. Figure 16 is a schematic perspective view of the electrical connector after removal of the mounting block and when a first conductive housing and a second conductive housing are separated from each other; Fig. 17 is a perspective view of Fig. 16 from a different angle; Fig. Figure 18 is an enlarged partial view of a circled section D in Fig. 16; Fig. Figure 19 is an enlarged partial view of a circled section E in Fig. 17; Fig. 20 is a top view of Fig. 16; Fig. 21 is a sub-view of Fig. 16; Fig. Figure 22 is a perspective exploded view of the first conductive housing, a plurality of first terminal modules, a first insulating fixing block, and a first ground sheet in Fig. 16; Fig. 23 is a perspective exploded view of Fig. 22 from a different angle; Fig. Figure 24 is a perspective exploded view of the second conductive housing, a plurality of second terminal modules, a second insulating fixing block, and a second grounding plate in Fig. 16; Fig. 25 is a perspective exploded view of Fig. 24 from a different angle; Fig. 26 is a top view of Fig. 22 from a special angle; Fig. 27 is a top view of Fig. 23; Fig. 28 is a top view of Fig. 25; Fig. 29 is a top view of Fig. 24 from a special angle; Fig. Figure 30 is an enlarged partial view of a frame part F in Fig. 22; Fig. Figure 31 is an enlarged partial view of a frame part G in Fig. 24; Fig. Figure 32 is a schematic cross-sectional view of the connector assembly along line BB in Fig. 3, in which the electrical connector is installed on the circuit board; Fig. 33 is a schematic perspective representation of the first mass plate and the second mass plate according to another embodiment of the present invention; Fig. Figure 34 is a partially enlarged view of a frame part H in Fig. 33; Fig. Figure 35 is a partially enlarged view of a frame part I in Fig. 33; Fig. 36 is a schematic perspective representation of the first mass sheet and the second mass sheet according to a further embodiment of the present invention; Fig. Figure 37 is a partially enlarged view of a frame part J in Fig. 36; and Fig. Figure 38 is a partially enlarged view of a frame part K in Fig. 36. DETAILED DESCRIPTION

[0016] Exemplary embodiments are described in detail here, examples of which are shown in the drawings. Unless otherwise indicated, identical numbers in different drawings represent identical or similar elements. The examples described in the following exemplary embodiments do not represent all embodiments compatible with this application. Rather, they are merely examples of devices and methods that correspond to some aspects of the application as described in the accompanying claims.

[0017] The terminology used in this application serves only to describe certain embodiments and is not intended to limit this application. The singular forms "ein", "besagtes" and "das" used in this application and the attached claims also include the plural, unless the context clearly indicates otherwise.

[0018] It should be understood that the terms "first," "second," and similar words used in the description and claims of this application do not represent any order, quantity, or importance, but are used only to distinguish between different components. Similarly, "one" or "a" and other similar words do not imply any quantity limitation, but indicate that there is at least one; "several" or "a plurality of" means two or more than two. Unless otherwise stated, "front," "rear," "below," and / or "above," and similar words are used for ease of description only and are not limited to a specific location or spatial orientation.Similar words such as "include" or "comprise" mean that elements or objects appearing before "include" or "comprise" cover elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. The term "a plurality of" mentioned in the present invention comprises two or more.

[0019] Several embodiments of the present invention are described in detail below with reference to the accompanying drawings. Provided there are no contradictions, the following embodiments and features can be combined with one another.

[0020] With reference to Fig. 1 to Fig. Figure 4 of the present invention discloses a connector assembly 400 comprising an electrical connector 100, a printed circuit board 200 for mounting the electrical connector 100, and a mating module 300 that can be at least partially inserted into the electrical connector 100. In the illustrated embodiment of the present invention, the electrical connector 100 is an OSFP (Octal Small Form-factor Pluggable) receptacle connector. Accordingly, the mating module 300 is an OSFP connector. Of course, it is understandable to the expert that the electrical connector 100 can also be an SFP (Small Form-factor Pluggable) female connector, a QSFP (Quad Small Form-factor Pluggable) female connector, a QSFP-DD (Quad Small Form-factor Pluggable-Double Density) female connector, an SFP-DD (Small Form-factor Pluggable-Double Density) female connector or a DSFP (Dual Channel Small Form-factor Pluggable) female connector, etc.Accordingly, the mating module 300 is an SFP connector, a QSFP connector, a QSFP-DD connector, an SFP-DD connector, or a DSFP connector, etc. It is understandable to the expert that the basic structure of the above-mentioned types of electrical connectors is regulated by relevant industry standards and is not described in detail here.

[0021] Referring to Fig. In the illustrated embodiment of the present invention, the electrical connector 100 defines a receiving slot 101 for at least partially receiving the mating module 300. To simplify the description of the specific embodiments of the present invention, a first direction for inserting and removing the mating module 300 and the electrical connector 100 is A1-A1 (e.g., a front-to-back direction); a second direction for the receiving slot 101 is A2-A2 (e.g., a left-to-right direction); and a third direction for installing the electrical connector 100 and the circuit board 200 is A3-A3 (e.g., a top-to-bottom direction). The first direction A1-A1, the second direction A2-A2, and the third direction A3-A3 are each perpendicular to one another.

[0022] As in the Fig. As shown in Figures 3 to 6, the counterpart module 300 comprises a tongue plate 301. The tongue plate 301 comprises a tongue plate top 302, a tongue plate bottom 303, a plurality of first contact pads 304 located on the tongue plate top 302, and a plurality of second contact pads 305 located on the tongue plate bottom 303. The plurality of first contact pads 304 are arranged at intervals along the second direction A2-A2. The plurality of second contact pads 305 are arranged at intervals along the second direction A2-A2.

[0023] As in Fig. As shown in Figure 6, the plurality of first contact pads 304 in the illustrated embodiment of the present invention comprises a plurality of first signal contact pads 3041 and a plurality of first ground contact pads 3042. The plurality of first signal contact pads 3041 are divided into a plurality of groups, each group comprising two first signal contact pads 3041 arranged side by side along the second direction A2-A2. Each group of first signal contact pads 3041 is associated with two first ground contact pads 3042, each arranged on two sides thereof, thus improving the shielding and the quality of the signal transmission. In the illustrated embodiment of the present invention, each group of first signal contact pads 3041 forms a differential pair to increase the speed of the signal transmission.In the embodiment of the present invention shown, the length of each first ground contact pad 3042 along the first direction A1-A1 is greater than the length of each first signal contact pad 3041 along the first direction A1-A1, so that the shielding is improved and the quality of the signal transmission is improved.

[0024] Similarly, in the Fig. In the embodiment of the present invention shown in Figure 7, the second contact pads 305 are a plurality of second signal contact pads 3051 and a plurality of second ground contact pads 3052. The plurality of second signal contact pads 3051 are divided into a plurality of groups, each group comprising two second signal contact pads 3051 arranged side by side along the second direction A2-A2. Each group of second signal contact pads 3051 is associated with two second ground contact pads 3052, each arranged on two sides, thus improving shielding and signal transmission quality. In the illustrated embodiment of the present invention, each group of second signal contact pads 3051 forms a differential pair to increase the signal transmission speed.In the embodiment of the present invention shown, the length of each second ground contact pad 3052 along the first direction A1-A1 is greater than the length of each second signal contact pad 3051 along the first direction A1-A1, so that the shielding and the quality of the signal transmission are improved.

[0025] With reference to Fig. 3 and Fig. 4. In one embodiment of the present invention, the printed circuit board 200 comprises a top surface 201, a bottom surface 202, a plurality of first conductive areas, and a plurality of second conductive areas. The plurality of first conductive areas comprises a plurality of first signal-conducting areas, a plurality of second signal-conducting areas, a plurality of first ground-conducting areas, and a plurality of second ground-conducting areas. Adjacent first signal-conducting areas and second signal-conducting areas along the second direction A2-A2 form a first signal-conducting area group. In one embodiment of the present invention, the group of first signal-conducting areas is a differential pair to increase the speed of signal transmission.Along the second direction A2-A2, each first signal-conducting area group is connected to a first ground-conducting area and a second ground-conducting area, each arranged on two sides, so that the shielding and the quality of the signal transmission are improved.

[0026] In one embodiment of the present invention, the majority of the first conductive areas are a majority of first conductive pads 203, and the majority of the second conductive areas are a majority of second conductive pads 204. The majority of the first conductive pads 203 and the majority of the second conductive pads 204 are configured to be electrically connected to the corresponding conductive terminals of the electrical connector 100 by surface mounting (SMT). The majority of the first conductive pads 203 are exposed on the top surface 201 of the printed circuit board and are arranged at intervals along the second direction A2-A2. The majority of the second conductive pads 204 are exposed on the top surface 201 of the printed circuit board and are arranged at intervals along the second direction A2-A2.The majority of the first conductive pads 203 and the majority of the second conductive pads 204 are generally arranged in two rows along the first direction A1-A1.

[0027] The plurality of first conductive pads 203 comprises a plurality of first signal-conducting pads 2031, a plurality of second signal-conducting pads 2032, a plurality of first ground-conducting pads 2033, and a plurality of second ground-conducting pads 2034. Adjacent first signal-conducting pads 2031 and second signal-conducting pads 2032, which are adjacent along the second direction A2-A2, form a first signal-conducting pad group DP1. In one embodiment of the present invention, the first signal-conducting pad group DP1 is a differential pair to increase the speed of signal transmission. Along the second direction A2-A2, each first signal-conducting pad group DP1 is connected to a first ground-conducting pad 2033 and a second ground-conducting pad 2034, each arranged on two sides, thus improving the shielding and the quality of the signal transmission.In the illustrated embodiment of the present invention, the length of each first ground-conducting pad 2033 along the first direction A1-A1 is greater than the length of each first signal-conducting pad 2031 along the first direction A1-A1 and is also greater than the length of each second signal-conducting pad 2032 along the first direction A1-A1, thereby improving the shielding and the quality of the signal transmission. Similarly, the length of each second ground-conducting pad 2034 along the first direction A1-A1 is greater than the length of each first signal-conducting pad 2031 along the first direction A1-A1 and is also greater than the length of each second signal-conducting pad 2032 along the first direction A1-A1, further improving the shielding and the quality of the signal transmission.

[0028] With reference to Fig. 3 and Fig. In the illustrated embodiment of the present invention, the first signal-conducting pad 2031 and the second signal-conducting pad 2032 in each first signal-conducting pad group DP1 are identical and are aligned along the second direction A2-A2. In other words, a front edge of the first signal-conducting pad 2031 is aligned with a front edge of the second signal-conducting pad 2032. A rear edge of the first signal-conducting pad 2031 is aligned with a rear edge of the second signal-conducting pad 2032. A front edge of the first ground-conducting pad 2033 extends forward and projects beyond the front edge of the first signal-conducting pad 2031 and the front edge of the second signal-conducting pad 2032. A rear edge of the first ground-conducting pad 2033 extends to the rear and projects beyond the rear edge of the first signal-conducting pad 2031 and the rear edge of the second signal-conducting pad 2032.A leading edge of the second ground pad 2034 extends forward and projects beyond the leading edge of the first signal pad 2031 and the leading edge of the second signal pad 2032. A trailing edge of the second ground pad 2034 extends backward and projects beyond the trailing edge of the first signal pad 2031 and the trailing edge of the second signal pad 2032. With this arrangement, the first ground pad 2033 and the second ground pad 2034 can provide full-length shielding of the first signal pad 2031 and the second signal pad 2032, thereby improving shielding and signal transmission quality.

[0029] With reference to Fig. 3 and Fig. In the illustrated embodiment of the present invention, 6 comprises a plurality of second conductive pads 204, a plurality of third signal-conducting pads 2041, a plurality of fourth signal-conducting pads 2042, a plurality of third ground-conducting pads 2043, and a plurality of fourth ground-conducting pads 2044. Adjacent third signal-conducting pads 2041 and the fourth signal-conducting pads 2042 along the second direction A2-A2 form a second signal-conducting pad group DP2. In one embodiment of the present invention, the second signal-conducting pad group DP2 is a differential pair to increase the signal transmission speed. Along the second direction A2-A2, each second signal-conducting pad group DP2 is associated with a third ground-conducting pad 2043 and a fourth ground-conducting pad 2044, each arranged on two sides, thus improving the shielding and the quality of the signal transmission.In the illustrated embodiment of the present invention, the length of every third ground-conducting pad 2043 along the first direction A1-A1 is greater than the length of every third signal-conducting pad 2041 along the first direction A1-A1 and is also greater than the length of every fourth signal-conducting pad 2042 along the first direction A1-A1, thereby improving the shielding and the quality of the signal transmission. Similarly, the length of every fourth ground-conducting pad 2044 along the first direction A1-A1 is greater than the length of every third signal-conducting pad 2041 along the first direction A1-A1 and is also greater than the length of every fourth signal-conducting pad 2042 along the first direction A1-A1, further improving the shielding and the quality of the signal transmission.

[0030] With reference to Fig. 3 and Fig. In the embodiment of the present invention shown, the third signal-conducting pad 2041 and the fourth signal-conducting pad 2042 in every second signal-conducting pad group DP2 are identical and aligned along the second direction A2-A2. In other words, a front edge of the third signal-conducting pad 2041 is aligned with a front edge of the fourth signal-conducting pad 2042. A rear edge of the third signal-conducting pad 2041 is aligned with a rear edge of the fourth signal-conducting pad 2042. A front edge of the third ground-conducting pad 2043 extends forward and projects beyond a front edge of the third signal-conducting pad 2041 and a front edge of the fourth signal-conducting pad 2042. A rear edge of the third ground-conducting pad 2043 extends to the rear and projects beyond a rear edge of the third signal-conducting pad 2041 and a rear edge of the fourth signal-conducting pad 2042.A leading edge of the fourth ground-conducting pad 2044 extends forward and projects beyond the leading edge of the third signal-conducting pad 2041 and the leading edge of the fourth signal-conducting pad 2042. A trailing edge of the fourth ground-conducting pad 2044 extends backward and projects beyond the trailing edge of the third signal-conducting pad 2041 and the trailing edge of the fourth signal-conducting pad 2042.

[0031] With this arrangement, the third ground-conducting pad 2043 and the fourth ground-conducting pad 2044 can achieve shielding of the third signal-conducting pad 2041 and the fourth signal-conducting pad 2042 over their entire length, thereby improving the shielding and increasing the quality of the signal transmission.

[0032] In another embodiment of the present invention, the majority of the first conductive areas are a majority of first through-holes and the majority of the second conductive areas are a majority of second through-holes. In other words, the first conductive pads 203 and the second conductive pads 204 of the printed circuit board 200 in the first embodiment are replaced by the first through-holes and the second through-holes. The majority of the first through-holes and the majority of the second through-holes extend through the top surface 201 and the bottom surface 202 of the printed circuit board along the third direction A3-A3. The majority of the first through-holes and the majority of the second through-holes are designed such that the corresponding conductive terminals of the electrical connector 100 can be at least partially inserted to establish an electrical connection.In one embodiment, the corresponding conductive terminals of the electrical connector 100 extend through the first and second through-holes and are electrically connected to the circuit board 200 by through-hole welding or soldering. At this point, the first signal-conducting pad 2031 is replaced by a first signal through-hole; the second signal-conducting pad 2032 is replaced by a second signal through-hole; the first ground-conducting pad 2033 is replaced by a first through-hole; and the second ground-conducting pad 2034 is replaced by a second through-hole.

[0033] In another embodiment, the first and second through-holes are first and second conductive through-holes, respectively. That is, the first signal-conducting pad 2031 is replaced by a first signal-conducting through-hole; the second signal-conducting pad 2032 is replaced by a second signal-conducting through-hole; the first ground-conducting pad 2033 is replaced by a first ground-conducting through-hole; and the second ground-conducting pad 2034 is replaced by a second ground-conducting through-hole. The corresponding conductive terminals of the electrical connector 100 are pressed at least partially into the first and second conductive through-holes, and the electrical connection between the conductive terminals and the conductive through-holes is achieved by an interference fit.

[0034] With reference to Fig. 3 and Fig. 4. In the illustrated embodiment of the present invention, the printed circuit board 200 further comprises a plurality of mounting through-holes 205 extending through the top surface 201 and the bottom surface 202 of the printed circuit board, and a plurality of ground mounting pads 206 exposed on the top surface 201 of the printed circuit board. The ground mounting pads 206 are arranged around the corresponding mounting through-holes 205. The mounting through-holes 205 are provided for positioning the electrical connector 100. The ground mounting pads 206 are configured to contact the electrical connector 100 to achieve improved grounding and / or fixation.In one embodiment of the present invention, the ground mounting pads 206 are welded or soldered to corresponding parts of the electrical connector 100, thereby achieving the grounding function and increasing the connection force between the electrical connector 100 and the printed circuit board 200. In another embodiment of the present invention, the majority of the ground mounting pads 206 are connected as a whole via internal conductive traces of the printed circuit board 200 in order to increase the grounded area.

[0035] Referring to the Fig. 8 to 12 the electrical connector 100 in an embodiment of the present invention comprises a housing, an insulating fixing block 2 which is fixed to the housing and a plurality of conductive terminals 3 which are installed on the housing.

[0036] In one embodiment of the present invention, the housing is a conductive housing 1. The conductive housing 1 is a metal housing made of a metal material, thus further improving the shielding effect and the quality of the signal transmission. In another embodiment of the present invention, the conductive housing 1 can also be a composite housing formed by electroplating a metal material onto an insulating material. The composite housing can likewise improve the shielding effect and increase the quality of the signal transmission.

[0037] As in Fig. As shown in Figure 10, the conductive housing 1 in one embodiment of the present invention comprises a first conductive housing 11 and a second conductive housing 12. The first conductive housing 11 and the second conductive housing 12 are fixed to one another. For example, the first conductive housing 11 and the second conductive housing 12 are fixed to one another after assembly by welding or soldering or other methods.

[0038] With reference to Fig. 16, Fig. 17, Fig. 22 and Fig. 23 The first conductive housing 11 in one embodiment of the present invention comprises a first base section 111 and a first projecting section 112 extending forward from the first base section 111. The first base section 111 comprises a first upper surface 1111, a first lower surface 1112, and at least one weight-reducing groove 1113, which is set downwards from the first upper surface 1111. Weight reduction can be achieved by means of the weight-reducing groove 1113. In the illustrated embodiment of the present invention, a plurality of weight-reducing grooves 1113 are provided, which do not extend downwards through the first base section 111, thereby reducing the weight and simultaneously ensuring the shielding performance of the first base section 111.The first base section 111 further comprises a plurality of first through-holes 1114, which are arranged on two sides of the first base section 111 and extend through the first base section 111 along the third direction A3-A3. In addition, the first base section 111 includes a first rear surface 1115 and a first mounting groove 1116, which is offset forward from the first rear surface 1115. The first mounting groove 1116 extends downward through the first underside 1112. The first section of the base 111 includes at least one first mounting slot 1117, which is connected to the first mounting groove 1116. In the illustrated embodiment of the present invention, two first mounting slots 1117 are provided, which penetrate downward through the first underside 1112. The first mounting slots 1117 are connected to the first mounting groove 1116.The underside of the first base section 111 comprises at least one first recess 1118, which adjoins the first projecting section 112. In the illustrated embodiment of the present invention, two first recesses 1118 are provided. The first section 111 of the base further comprises a plurality of mounting projections 1119, which project into corresponding first recesses 1118.

[0039] The first projecting section 112 comprises a second upper surface 1121, a second lower surface 1122, and a plurality of first infill grooves 1123 extending upward through the second upper surface 1121 along the third direction A3-A3. The first infill grooves 1123 extend forward through a first front end surface 1120 of the first projecting section 112 along the first direction A1-A1. The first projecting section 112 further comprises a plurality of first positioning posts 1124 projecting upward beyond the second upper surface 1121 along the third direction A3-A3.

[0040] According to the in Fig. In the embodiment of the present invention shown in Figure 23, the first conductive housing 11 further comprises a plurality of first terminal module installation slots 113 extending along the first direction A1-A1. Each first terminal module installation slot 113 extends from the first base section 111 to the first projecting section 112. A rear end of the first terminal module installation slot 113 is in contact with the first mounting groove 1116. A central section of the first terminal module installation slot 113 is circumferentially surrounded by the walls of the first conductive housing 11. A front end of the first terminal module installation slot 113 extends downward through the second lower surface 1122.In particular, the first terminal module installation slot 113 in the illustrated embodiment of the present invention comprises a first circumferential groove 1131 located near the first mounting groove 1116 and a first open slot 1132 located away from the first mounting groove 1116. The first open slot 1132 is connected to the first circumferential groove 1131 along the first direction A1-A1. The first open slot 1132 is connected to the receiving slot 101 in the third direction A3-A3. In the illustrated embodiment of the present invention, the first circumferential groove 1131 is provided on the first base section 111, and the first circumferential groove 1131 is surrounded by wall sections of the first base sections 111 along a circumferential direction. The first open slot 1132 is provided on the first projecting section 112.It is understandable to the person skilled in the art that by arranging the central section of the first terminal module installation slot 113, which is surrounded circumferentially by the walls of the first conductive housing 11, the conductive terminals located in the first terminal module installation slots 113 can be better shielded, and adjacent first terminal module installation slots 113 can be well separated from each other, thereby reducing signal crosstalk.

[0041] As in Fig. As shown in Figure 23, the majority of the first terminal module installation slots 113 are spaced apart along the second direction A2-A2. The first conductive enclosure 11 comprises a plurality of first partitions 114, which are arranged at intervals along the second direction A2-A2. Two adjacent first terminal module installation slots 113 are separated by a corresponding first wall 114 along the second direction A2-A2. In other words, each first terminal module installation slot 113 is surrounded by four walls of the first conductive enclosure 11 over a length corresponding to the respective first partition 114, thereby improving the shielding effect. With this arrangement, each first terminal module installation slot 113 is relatively independent, thus reducing signal crosstalk and improving data transmission quality.

[0042] With reference to Fig. 16, Fig. 17, Fig. 24 and Fig. In one embodiment of the present invention, the second conductive housing 12 comprises a second base section 121 and a second projecting section 122 extending forward from the second base section 121. The second base section 121 comprises a third upper surface 1211, a third lower surface 1212, a plurality of first fastening posts 1213 projecting upward beyond the third upper surface 1211, and a plurality of second fastening posts 1214 projecting downward beyond the third lower surface 1212. Furthermore, the second base section 121 comprises a second rear surface 1215 and a receiving space 1216 recessed forward from the second rear surface 1215. The receiving space 1216 extends through the second base section 121 along the third direction A3-A3. Furthermore, the second base section 121 defines a second mounting groove 1217.A top surface of the second base section 121 defines at least one second recess 1218, which adjoins the second projecting section 122. In the illustrated embodiment of the present invention, two second recesses 1218 are provided. The second base section 121 further comprises a plurality of second mounting projections 1219, which project into corresponding second recesses 1218. The second conductive housing 12 also comprises a plurality of mounting posts 1214a, which project downwards beyond the second mounting posts 1214. The mounting posts 1214a are inserted into the mounting through-holes 205 of the printed circuit board 200, thus enabling installation positioning. In one embodiment of the present invention, a lower wall of the second conductive housing 12 and the ground mounting pad 206 are fixed by welding or soldering.

[0043] The second preceding section 122 comprises a fourth upper surface 1221, a fourth lower surface 1222, and a plurality of second filling grooves 1223 extending downward through the fourth lower surface 1222. The second filling grooves 1223 extend forward through a second front end surface 1220 of the second preceding section 122. The second preceding section 122 further comprises a plurality of second positioning posts 1224 projecting downward beyond the second lower surface 1122.

[0044] In the Fig. In the embodiment of the present invention shown in Figure 25, the second conductive housing 12 further comprises a plurality of second terminal module installation slots 123 extending along the first direction A1-A1. Each second terminal module installation slot 123 extends from the second base section 121 to the second projecting section 122. A rear end of the second terminal module installation slot 123 is in contact with the receiving space 1216. The middle section of the second terminal module installation slot 123 is enclosed by the walls of the second conductive housing 12. A front end of the second terminal module installation slot 123 extends upward through the fourth upper surface 1221.In particular, the second terminal module installation slot 123 in the illustrated embodiment of the present invention comprises a second circumferential groove 1231 located near the second mounting groove 1216 and a second open slot 1232 located away from the second mounting groove 1216. The second open slot 1232 is connected to the second circumferential groove 1231 along the first direction A1-A1. The second open slot 1232 is connected to the receiving slot 101 in the third direction A3-A3. In the illustrated embodiment of the present invention, the second circumferential groove 1231 is provided on the second base section 121, and the second circumferential groove 1231 is surrounded by wall sections of the second base section 121 along a circumferential direction. The second open slot 1232 is provided on the second projecting section 122.It is understandable to the person skilled in the art that by arranging the central section of the second terminal module installation slot 123, which is surrounded circumferentially by the walls of the second conductive housing 12, the conductive terminals located in the second terminal module installation slots 123 can be better shielded, and the adjacent second terminal module installation slots 123 can be well separated from each other, thereby reducing signal crosstalk.

[0045] As in Fig. As shown in Figure 25, the majority of the second terminal module installation slots 123 are arranged at intervals along the second direction A2-A2. The second conductive enclosure 12 comprises a plurality of second partitions 124, which are arranged at intervals along the second direction A2-A2. Two adjacent second terminal module installation slots 123 are separated from each other by corresponding second walls 124 along the second direction A2-A2. In other words, each second terminal module installation slot 123 is surrounded by four walls of the second conductive enclosure 12 over a length corresponding to the second partition 124, thereby improving the shielding effect. With this arrangement, each second terminal module installation slot 123 is relatively independent, thus reducing signal crosstalk and improving data transmission quality.

[0046] With reference to Fig. 16 to Fig. In the illustrated embodiment of the present invention, the insulating fixing block 2 comprises a first insulating fixing block 21 and a second insulating fixing block 22. The first insulating fixing block 21 is fixed in the first filling grooves 1123. The second insulating fixing block 22 is fixed in the second filling grooves 1223. To increase the bonding force between the first insulating fixing block 21 and the first conductive housing 11, the first insulating fixing block 21 is preferably overmolded in the first filling grooves 1123. To increase the bonding force between the second insulating fixing block 22 and the second conductive housing 12, the second insulating fixing block 22 is overmolded in the second filling grooves 1223. The first insulating fixing block 21 includes a first dovetail-shaped projection 213. The first filling groove 1123 includes a first dovetail groove 11231.When the first dovetail-shaped projection 213 is engaged in the first dovetail groove 11231, the first insulating fixing block 21 is prevented from falling out of the first conductive housing 11 in the first direction A1-A1. Similarly, the second insulating fixing block 22 includes a second dovetail-shaped projection 223. The second filling groove 1223 includes a second dovetail-shaped groove 12231. When the second dovetail-shaped projection 223 is engaged in the second dovetail groove 12231, the second insulating fixing block 22 is prevented from falling out of the second conductive housing 12 in the first direction A1-A1.

[0047] The first insulating fixing block 21 defines a plurality of first slots 211 and a plurality of second slots 212, wherein adjacent first slots 211 and second slots 212 form a group and are connected to a corresponding first terminal module installation slot 113. The first insulating fixing block 21 further comprises a first front surface 210, which is coplanar or plane-parallel with the first front end surface 1120 of the first preceding section 112.

[0048] Similarly, the second insulating fixing block 22 defines a plurality of third slots 221 and a plurality of fourth slots 222. Adjacent third slots 221 and fourth slots 222 form a group and are connected to a corresponding second terminal module installation slot 123. The second insulating fixing block 22 includes a second front surface 220, which is coplanar with the second front end surface 1220 of the second projecting section 122.

[0049] As in Fig. 22 to Fig. As shown in Figure 32, the plurality of conductive terminals 3 comprises a plurality of first conductive terminals 31 and a plurality of second conductive terminals 32. Each first conductive terminal 31 comprises a first fixing section 311 extending along the first direction A1-A1, a first contact arm 310 extending forward from a front end of the first fixing section 311, a second fixing section 312 bent downward from a rear end of the first fixing section 311, and a first mounting foot 313 extending from a lower end of the second fixing section 312. The first contact arm 310 comprises a first contact section 3101 projecting into the receiving slot 101 to contact the first signal contact pad 3041 of the tongue plate 301.In the illustrated embodiment of the present invention, the first mounting foot 313 extends horizontally from the lower end of the second fixing section 312 to the rear, so that it is in contact with a corresponding first signal-conducting pad 2031 and a corresponding second signal-conducting pad 2032 of the printed circuit board 200. It is understandable to those skilled in the art that, in the illustrated embodiment of the present invention, the first mounting feet 313 can be fixed to the corresponding first signal-conducting pad 2031 and the corresponding second signal-conducting pad 2032 of the printed circuit board 200 by SMT. In other embodiments, the first mounting feet 313 can, of course, also be arranged perpendicular to the printed circuit board 200. In this case, the printed circuit board 200 has a plurality of through-holes, and the first mounting feet 313 extend through the through-holes to be fixed to the printed circuit board 200 by soldering or welding.In other embodiments, the first mounting feet 313 can also be arranged perpendicular to the circuit board 200. Each first mounting foot 313 is provided with a fisheye hole to ensure a specific degree of elasticity. At this point, the circuit board 200 has a plurality of conductive through-holes, and the first mounting feet 313 can be fixed to the circuit board 200 by pressing them on. The assembly of the first mounting feet 313 and the circuit board 200 is readily understandable to a person skilled in the art and is not described in detail here.

[0050] In the embodiment of the present invention shown, the plurality of first conductive terminals 31 are divided into a plurality of groups. Each group of first conductive terminals 31 comprises a first signal terminal S1 and a second signal terminal S2, which is arranged adjacent to the first signal terminal S1. Preferably, the first signal terminal S1 and the second signal terminal S2 in each group of first conductive terminals 31 form a differential pair to improve the speed of signal transmission.

[0051] In the illustrated embodiment of the present invention, the electrical connector 100 further comprises a first retaining block 33, which is fixed to the first signal terminal S1 and the second signal terminal S2 of each group of first conductive terminals 31. In one embodiment of the present invention, the first signal terminal S1 and the second signal terminal S2 are overmolded with the first retaining block 33, so that an integrated first terminal module 31a is formed. The first contact sections 3101 of the first signal terminal S1 and the second signal terminal S2 in each first terminal module 31a are configured to be in contact with the first signal contact pads 3041 of the mating module 300. The first mounting foot 313 of the first signal terminal S1 and the first mounting foot 313 of the second signal terminal S2 in each first terminal module 31a are configured to be in contact with the first signal-conducting pad 2031 and 3141, respectively.in contact with the second signal-conducting pad 2032 of the printed circuit board 200. In one embodiment of the present invention, the first mounting foot 313 of the first signal terminal S1 and the first mounting foot 313 of the second signal terminal S2 in each first terminal module 31a are soldered or welded to the first signal-conducting pad 2031 and the second signal-conducting pad 2032 of the printed circuit board 200, respectively.

[0052] In the embodiment of the present invention shown, the first retaining block 33 comprises a first fixing block 331, which is fixed or attached to the front ends of the first fixing sections 311 of the first signal terminal S1 and the second signal terminal S2, a second fixing block 332, which is attached to the rear ends of the first fixing sections 311 of the first signal terminal S1 and the second signal terminal S2, a third fixing block 333, which is fixed to the upper ends of the second fixing sections 312 of the first signal terminal S1 and the second signal terminal S2, and a fourth fixing block 334, which is fixed to the lower ends of the second fixing sections 312 of the first signal terminal S1 and the second signal terminal S2.

[0053] Similarly, every second conductive terminal 32 comprises a third fixing section 321 extending along the first direction A1-A1, a second contact arm 320 extending forward from a front end of the third fixing section 321, a fourth fixing section 322 bent downward from a rear end of the third fixing section 321, and a second mounting foot 323 extending from a lower end of the fourth fixing section 322. The second contact arm 320 comprises a second contact section 3201 projecting into the receiving slot 101 so that it contacts the second signal contact pad 3051 of the tongue plate 301. In the embodiment of the present invention shown, the second mounting foot 323 extends horizontally forward from the lower end of the fourth fixing section 322, so that it is in contact with the third signal-conducting pad 2041 and the fourth signal-conducting pad 2042 of the circuit board 200.It is understandable to those skilled in the art that, in the illustrated embodiment of the present invention, the second mounting feet 323 are soldered or welded to the third signal-conducting pad 2041 and the fourth signal-conducting pad 2042 of the printed circuit board 200 by SMT. Of course, in other embodiments, the second mounting feet 323 can also be arranged perpendicular to the printed circuit board 200. In this case, the printed circuit board 200 has a plurality of through-holes, and the second mounting feet 323 are inserted through these through-holes to be soldered or welded to the printed circuit board 200. In other embodiments, the second mounting feet 323 can also be arranged perpendicular to the printed circuit board 200. Every second mounting foot 323 has a fisheye hole to ensure a specific degree of elasticity. In this case, the printed circuit board 200 has a plurality of conductive through-holes.The second mounting feet 323 can be fixed to the circuit board 200 by pressing them in. The method of mounting the second mounting feet 323 and the circuit board 200 is readily understandable to a qualified professional and is not described in detail here.

[0054] In the embodiment of the present invention shown, the plurality of the second conductive terminals 32 are divided into a plurality of groups, and each group of the second conductive terminals 32 comprises a third signal terminal S3 and a fourth signal terminal S4, which is arranged to the third signal terminal S3. Preferably, the third signal terminal S3 and the fourth signal terminal S4 in each group of the second conductive terminals 32 form a differential pair to improve the speed of signal transmission.

[0055] In the illustrated embodiment of the present invention, the electrical connector 100 further comprises a second retaining block 34, which is fixed to the third signal terminal S3 and the fourth signal terminal S4 of each group of second conductive terminals 32. In one embodiment of the present invention, the third signal terminal S3 and the fourth signal terminal S4 are overmolded with the second retaining block 34 to form an integrated second terminal module 32a. The second contact sections 3201 of the third signal terminal S3 and the fourth signal terminal S4 in each second terminal module 32a are configured to be in contact with the second signal contact pads 3051 of the mating module 300.The second mounting foot 323 of the third signal terminal S3 and the second mounting foot 323 of the fourth signal terminal S4 in every second terminal module 32a are each in contact with a corresponding third signal-conducting pad 2041 and a corresponding fourth signal-conducting pad 2042 of the printed circuit board 200. In one embodiment of the present invention, the second mounting foot 323 of the third signal terminal S3 and the second mounting foot 323 of the fourth signal terminal S4 in every second terminal module 32a are soldered or welded to the corresponding third signal-conducting pad 2041 and the corresponding fourth signal-conducting pad 2042 of the printed circuit board 200, respectively.

[0056] In the embodiment of the present invention shown, the second retaining block 34 comprises a fifth fixing block 341, which is attached to the front ends of the third fixing sections 321 of the third signal terminal S3 and the fourth signal terminal S4, a sixth fixing block 342, which is attached to the rear ends of the third fixing sections 321 of the third signal terminal S3 and the fourth signal terminal S4, a seventh fixing block 343, which is fixed to the upper ends of the fourth fixing sections 322 of the third signal terminal S3 and the fourth signal terminal S4, and an eighth fixing block 344, which is fixed to the lower ends of the fourth fixing sections 322 of the third signal terminal S3 and the fourth signal terminal S4.

[0057] According to Fig. 1 to Fig. In one embodiment of the present invention, the electrical connector 100 comprises at least one grounding plate 4, which is attached to the conductive housing 1. The grounding plate 4 comprises a first grounding plate 41 and a second grounding plate 42. In the illustrated embodiment of the present invention, two first grounding plates 41 are provided, which are made of metal. Two second grounding plates 42 are provided and are made of metallic material.

[0058] Each first ground plate 41 is generally U-shaped and comprises a first mounting plate 411, a second mounting plate 412 opposite the first mounting plate 411, a first connecting plate 413 joining one side of the first mounting plate 411 and one side of the second mounting plate 412, and a first extension plate 414 extending downward and rearward from another side of the second mounting plate 412. The first mounting plate 411 has a plurality of first positioning holes 4111 that align with the first positioning posts 1124. The first extension plate 414 is received in a corresponding first recess 1118 of the first conductive housing 11. The first extension plate 414 defines a plurality of first mounting holes 4141 for receiving the first mounting projections 1119.

[0059] The first connecting plate 413 rests against the first front surface 210 of the first insulating fixing block 21 and at least partially covers it. The first connecting plate 413 is arranged at a front end of the receiving slot 101 along the first direction A1-A1. When the mating module 300 is inserted, the tongue plate 301 can first come into contact with the first connecting plate 413, thus facilitating the dissipation of static electricity. The second fixing plate 412 is provided with a plurality of first elastic ground arms 415, which are arranged at intervals along the second direction A2-A2. The first elastic ground arms 415 are arranged on two sides of the first contact arms 310 of each group of first conductive terminals 31 to improve the shielding effect and the quality of signal transmission.

[0060] The first elastic mass arm 415 curves away from the first mounting plate 411 as a whole. In particular, in the illustrated embodiment of the present invention, the first elastic mass arm 415 comprises a first intermediate section 4150, a first section of the elastic arm 4151 connecting one end of the first intermediate section 4150 to the first connecting plate 413, and a second section of the elastic arm 4152 connecting another end of the first intermediate section 4150 to the first extension plate 414. In one embodiment of the present invention, the first intermediate section 4150 comprises a first recess 4150a projecting into the receiving slot 101.The first section of the elastic arm 4151 has a first elastic contact arm 4151a extending towards the first intermediate section 4150, and a first relief groove 4151b corresponding to the first elastic contact arm 4151a and providing a deformation space for the first elastic contact arm 4151a. The second section of the elastic arm 4152 is provided with a second elastic contact arm 4152a extending towards the first intermediate section 4150, and with a second relief groove 4152b corresponding to the second elastic contact arm 4152a and providing a deformation space for the second elastic contact arm 4152a. In the illustrated embodiment of the present invention, the first elastic contact arm 4151a and the second elastic contact arm 4152a are each arranged on two sides of the first intermediate section 4150.The first elastic contact arm 4151a and the second elastic contact arm 4152a are aligned along the first direction A1-A1. A free end of the first elastic contact arm 4151a and a free end of the second elastic contact arm 4152a are both located near the first intermediate section 4150. The first elastic arm 4151a, the first recess 4150a, and the second elastic arm 4152a are all in contact with the corresponding first ground contact pad 3042 of the mating module 300. This three-point contact method is advantageous for achieving a better shielding effect.

[0061] In one embodiment of the present invention, the first section of the elastic arm 4151 comprises a first frame 4151c, which is surrounded on all sides. The first relief groove 4151b is a closed groove and is surrounded by the first frame 4151c. The first elastic arm 4151a is connected to one wall of the first frame 4151c. The other three walls of the first frame 4151c each surround the other three sides of the first elastic contact arm 4151a. In one embodiment of the present invention, the first frame 4151c, which surrounds the first elastic contact arm 4151a, can better protect the first elastic contact arm 4151a and prevent it from being excessively deformed.

[0062] Similarly, the second section of the elastic arm 4152 comprises a second frame 4152c, which is surrounded on all sides. The second relief groove 4152b is a closed groove and is surrounded by the second frame 4152c. The second elastic contact arm 4152a is connected to one wall of the second frame 4152c. The other three walls of the second frame 4152c each surround the other three sides of the second elastic contact arm 4152a. In one embodiment of the present invention, the second frame 4152c surrounding the second elastic contact arm 4152a can provide better protection for the second elastic contact arm 4152a and prevent it from being excessively deformed.

[0063] In one embodiment of the present invention, the first positioning posts 1124 are fixed to the first mounting holes 4111, so that the first mounting plate 411 is fixed to the second upper surface 1121 of the first projecting section 112. As in Fig. As shown in Figure 21, a dimension of the first mounting hole 4141 along the first direction A1-A1 can be slightly larger than a dimension of the first mounting projection 1119 along the first direction A1-A1. Thus, when the first elastic contact arm 4151a, the first intermediate section 4150, and the second elastic contact arm 4152a are contacted and deformed by the first ground contact pad 3042 of the mating module 300, the first extension plate 414 can move accordingly in the first recess 1118 along the first direction A1-A1.

[0064] Every second ground plate 42 is generally U-shaped and comprises a third mounting plate 421, a fourth mounting plate 422 opposite the third mounting plate 421, a second connecting plate 423 joining one side of the third mounting plate 421 and one side of the fourth mounting plate 422, and a second extension plate 424 extending downward and rearward from another side of the fourth mounting plate 422. The third mounting plate 421 has a plurality of second mounting holes 4211 that align with the second positioning posts 1224. The second extension plate 424 is received in a corresponding second recess 1218 of the second conductive housing 12. The second extension plate 424 defines a plurality of second mounting holes 4241 for receiving the second mounting projections 1219.

[0065] The second connecting plate 423 rests against the second front surface 220 of the second insulating fixing block 22 and at least partially covers it. The second connecting plate 423 is arranged at the front end of the receiving slot 101 along the first direction A1-A1. When the mating module 300 is inserted, the tongue plate 301 can first come into contact with the second connecting plate 423, thus facilitating the dissipation of static electricity. The fourth mounting plate 422 is provided with a plurality of second elastic ground arms 425, which are arranged at intervals along the second direction A2-A2. The second elastic ground arms 425 are each arranged on two sides of the second contact arms 320 of each group of second conductive terminals 32, thus improving the shielding effect and the quality of signal transmission.

[0066] The second elastic mass arm 425 curves away from the third mounting plate 421 as a whole. In particular, in the illustrated embodiment of the present invention, the second elastic mass arm 425 comprises a second intermediate section 4250, a third section of the elastic arm 4251 connecting one end of the second intermediate section 4250 to the second connecting plate 423, and a fourth section of the elastic arm 4252 connecting another end of the second intermediate section 4250 to the second extension plate 424. In one embodiment of the present invention, the second intermediate section 4250 comprises a second recess 4250a projecting into the receiving slot 101.The third section of the elastic arm 4251 comprises a third elastic contact arm 4251a extending towards the second intermediate section 4250, and a third relief groove 4251b corresponding to the third elastic contact arm 4251a and providing a deformation space for the third elastic contact arm 4251a. The fourth section of the elastic arm 4252 comprises a fourth elastic contact arm 4252a extending towards the second intermediate section 4250, and a fourth relief groove 4252b corresponding to the fourth elastic contact arm 4252a and providing a deformation space for the fourth elastic contact arm 4252a. In the illustrated embodiment of the present invention, the third elastic contact arm 4251a and the fourth elastic contact arm 4252a are each arranged on two sides of the second intermediate section 4250.The third elastic contact arm 4251a and the fourth elastic contact arm 4252a are aligned along the first direction A1-A1. A free end of the third elastic contact arm 4251a and a free end of the fourth elastic contact arm 4252a are both located near the second intermediate section 4250. The third elastic contact arm 4251a, the second recess 4250a, and the fourth elastic contact arm 4252a are all in contact with the second ground contact pad 3052 of the mating module 300. This three-point contact method is advantageous for achieving a better shielding effect.

[0067] In one embodiment of the present invention, the third section of the elastic arm 4251 comprises a third frame 4251c, which is surrounded on all sides. The third relief groove 4251b is a closed groove and is enclosed by the third frame 4251c. The third elastic contact arm 4251a is connected to one wall of the third frame 4251c. The other three walls of the third frame 4251c each surround the other three sides of the third elastic contact arm 4251a. In one embodiment of the present invention, the third frame 4251c, which surrounds the third elastic contact arm 4251a, can better protect the third elastic contact arm 4251a and prevent it from being excessively deformed.

[0068] Similarly, the fourth section of the elastic arm 4252 comprises a surrounding fourth frame 4252c. The fourth relief groove 4252b is a closed groove and is surrounded by the fourth frame 4252c. The fourth elastic contact arm 4252a is connected to one wall of the fourth frame 4252c. The other three walls of the fourth frame 4252c each surround the other three sides of the fourth elastic contact arm 4252a. In one embodiment of the present invention, the fourth frame 4252c surrounding the fourth elastic contact arm 4252a can provide better protection for the fourth elastic contact arm 4252a and prevent it from being excessively deformed.

[0069] In one embodiment of the present invention, the second positioning posts 1224 are fixed in the second mounting holes 4211, so that the third mounting plate 421 is fixed to the fourth lower surface 1222 of the second projecting section 122. As shown in Fig. As shown in Figure 20, a dimension of the second mounting hole 4241 along the first direction A1-A1 can be slightly larger than a dimension of the second mounting projection 1219 along the first direction A1-A1. Thus, when the third elastic contact arm 4251a, the second intermediate section 4250, and the fourth elastic contact arm 4252a are contacted and deformed by the second ground contact pad 3052 of the mating module 300, the second extension plate 424 can move accordingly in the second recess 1218 along the first direction A1-A1.

[0070] Referring to Fig. 11 to Fig. In one embodiment of the present invention, the electrical connector 100 further comprises a mounting block 5, which is mounted on the conductive housing 1. In one embodiment of the present invention, the mounting block 5 is a metal shell made of a metallic material, thus improving the shielding effect and the quality of the signal transmission. In another embodiment of the present invention, the mounting block 5 can also be a composite shell formed by electroplating a metallic material onto an insulating material.

[0071] In one embodiment of the present invention, the mounting block 5 comprises a base 51, a first mounting projection 52 extending upward from the base 51, a second mounting projection 53 extending upward from the base 51, a plurality of first receiving grooves 522 extending through the mounting block 5 along the third direction A3-A3, and a plurality of second receiving grooves 532 extending through the mounting block 5 along the third direction A3-A3. The base 51 has a plurality of positioning holes 510 on two sides. The positioning holes 510 correspond to the second mounting projections 5214. The base 51 has an upper surface 511 and a lower surface 512. The first mounting projection 52 and the second mounting projection 53 both project upward beyond the upper surface 511 of the base 51.

[0072] The majority of the first receiving grooves 522 extend upwards through the first mounting projection 52. The first mounting projection 52 is provided with a backplate 521 that projects further upwards, as well as with a plurality of third partitions 523 that separate the majority of the first receiving grooves 522. The backplate 521 is designed so that it can be passed through the receiving space or mounting space 1216 and the first mounting groove 1116 and inserted into the first mounting slots 1117. The backplate 521 shields the second fixing sections 312 of the first conductive terminals 31 and the fourth fixing sections 322 of the second conductive terminals 32, thus forming an external shield. The first receiving groove 522 serves to receive the fourth fixing block 334 and to arrange the second fixing sections 312 of the first conductive terminals 31 overhead in the first receiving groove 522.On the one hand, this arrangement improves the shielding effect on the first conductive terminals 31. On the other hand, a short circuit is avoided through contact between the second fixing section 312 and the mounting block 5.

[0073] The majority of the second receiving grooves 532 extend upwards through the second mounting projection 53. The second mounting projection 53 is provided with a mounting positioning plate 531 and a plurality of fourth partitions 533, which separate the majority of the second receiving grooves 532. The mounting plate 531 is inserted into the second mounting groove 1217 to achieve mounting positioning. The second receiving groove 532 serves to receive the eighth fixing block 344 and to arrange the fourth fixing sections 322 of the second conductive terminals 32 upside down in the second receiving groove 532. On the one hand, this arrangement improves the shielding effect on the second conductive terminals 32. On the other hand, a short circuit through contact between the fourth fixing sections 322 and the mounting block 5 is avoided.

[0074] As in Fig. As shown in Figure 11, in one embodiment of the present invention, the base 51, the first mounting projection 52, and the second mounting projection 53 are integrally constructed. The backplate 521 can better shield the second fixing sections 312 of the first conductive terminals 31 and the fourth fixing sections 322 of the second conductive terminals 32, thereby improving the quality of the signal transmission.

[0075] As in Fig. As shown in Figure 12, in one embodiment of the present invention, the base 51 further comprises a plurality of first through-holes 513 and a plurality of second through-holes 514 extending through the upper surface 511 and the lower surface 512. The first through-holes 513 serve to allow the first mounting feet 313 of the first signal terminals S1 and the second signal terminals S2 in the corresponding first terminal module 31a to pass through. The second through-holes 514 serve to allow the passage of the second mounting feet 323 of the third signal terminals S3 and the fourth signal terminals S4 in the corresponding second terminal module 32a. The first mounting feet 313 and the second mounting feet 323 are used for fastening or mounting to the printed circuit board 200.

[0076] With reference to Fig. 4, Fig. 5 and Fig. 12 to Fig. In one embodiment of the present invention, the electrical connector 100 further comprises, for the improvement of the shielding of the first mounting feet 313 and the second mounting feet 323, a plurality of first shielding ribs 54, a plurality of second shielding ribs 55, a plurality of third shielding ribs 56 and a plurality of fourth shielding ribs 57. In one embodiment of the present invention, the plurality of the first shielding ribs 54, the plurality of the second shielding ribs 55, the plurality of the third shielding ribs 56 and the plurality of the fourth shielding ribs 57 are all provided on the mounting block 5 and project downwards from the lower surface 512 of the base 51.Each first through-hole 513 is connected to a first shielding rib 54 and a second shielding rib 55 on two sides thereof, so that the first mounting feet 313 of a group of the first signal terminal S1 and the second signal terminal S2 in the first terminal module 31a are better shielded, thereby improving the signal transmission quality. Each second through-hole 514 is connected to a third shielding rib 56 and a fourth shielding rib 57 on two sides thereof, so that the second mounting feet 323 of a group of the third signal terminal S3 and the fourth signal terminal S4 in the second terminal module 32a are better shielded, thereby improving the signal transmission quality.

[0077] In one embodiment of the present invention, the first shielding rib 54, the second shielding rib 55, the third shielding rib 56, and the fourth shielding rib 57 are all formed integrally with the base 51. Of course, in other embodiments, the first shielding rib 54, the second shielding rib 55, the third shielding rib 56, and the fourth shielding rib 57 can also be manufactured separately from the base 51 and then assembled and fixed to the base 51.

[0078] As in Fig. As shown in Figure 5, in one embodiment of the present invention, the first shielding ribs 54 and the third shielding ribs 56 are arranged at intervals along the first direction A1-A1. The second shielding ribs 55 and the fourth shielding ribs 57 are arranged at intervals along the first direction A1-A1. The first shielding rib 54 and the third shielding rib 56 are aligned along the first direction A1-A1. The second shielding rib 55 and the fourth shielding rib 57 are aligned along the first direction A1-A1.

[0079] The first shielding rib 54 comprises a first lower mounting surface 541. The second shielding rib 55 comprises a second lower mounting surface 551. The third shielding rib 56 comprises a third lower mounting surface 561. The fourth shielding rib 57 comprises a fourth lower mounting surface 571. The first mounting base 313 comprises a first lower contact surface 3131. The second mounting base 323 comprises a second lower contact surface 3231. To improve the reliability of the contact, in the illustrated embodiment of the present invention, the first lower mounting surface 541, the second lower mounting surface 551, the third lower mounting surface 561, the fourth lower mounting surface 571, the first lower contact surface 3131, and the second lower contact surface 3231 are all coplanar or plane-parallel.

[0080] When the electrical connector 100 is mounted on the circuit board 200, the first shielding ribs 54 and the second shielding ribs 55 are in contact with the corresponding first ground pads 2033 and the second ground pads 2034, respectively. The third shielding ribs 56 and the fourth shielding ribs 57 are in contact with the corresponding third ground pads 2043 and the fourth ground pads 2044, respectively. The first mounting feet 313 of the first terminal module 31a are in contact with the corresponding first signal pads 2031 and the second signal pads 2032. The second mounting feet 323 of the second terminal module 32a are in contact with the corresponding third signal pads 2041 and the fourth signal pads 2042. In one embodiment of the present invention, the first shielding ribs 54 and the second shielding ribs 55 are in contact with the corresponding first signal pads 2033 and the second signal pads 2034, respectively. 55 with the corresponding first ground-conducting pads 2033 orThe second ground-conducting pads 2034 are soldered or welded. The third shielding ribs 56 and the fourth shielding ribs 57 are soldered or welded to the corresponding third ground-conducting pads 2043 and fourth ground-conducting pads 2044, respectively.

[0081] During the assembly of the electrical connector 100, the first insulating fixing block 21 is first fixed in the first filling grooves 1123, and the second insulating fixing block 22 is fixed in the second filling grooves 1223.

[0082] The first conductive housing 11 and the second conductive housing 12 are then assembled. The first mounting posts 1213 are inserted into the first positioning through-holes 1114. The first base 111 and the second base 121 are vertically aligned. The first projecting section 112 and the second projecting section 122 are vertically aligned. The first mounting groove 1116 and the mounting space 1216 correspond vertically. In one embodiment of the present invention, the first mounting posts 1213 are press-fitted to the first positioning through-holes 1114 to increase the holding force of both. To further increase the connection force between the first conductive housing 11 and the second conductive housing 12, the first conductive housing 11 and the second conductive housing 12 are soldered or welded together at a joint.The first conductive housing 11, for example, is provided with a first weld groove 11a, recessed upwards, at the joint. The second conductive housing 12 is provided with a second weld groove 12a, recessed downwards, at the joining position. The first weld groove 11a and the second weld groove 12a are interconnected at their respective positions, thus facilitating the injection of solder into the first weld groove 11a and the second weld groove 12a, enabling the first conductive housing 11 and the second conductive housing 12 to be fixed by welding or brazing. Once the first conductive housing 11 and the second conductive housing 12 are fixed, the receiving slot 101 for receiving the mating module 300 is formed between the first projecting section 112 and the second projecting section 122.

[0083] Then the first ground plate 41 and the second ground plate 42 are attached to the first conductive housing 11 and the second conductive housing 12, respectively.

[0084] Then the first terminal modules 31a and the second terminal modules 32a are installed in the corresponding first terminal module installation slots 113 and the second terminal module installation slots 123 from back to front along the first direction A1-A1. At this point, the first fixing block 331 and the second fixing block 332 are fixed in the corresponding first terminal module installation slot 113, and the first fixing sections 311 of the first conductive terminals 31 are arranged upside down in the corresponding first terminal module installation slot 113 to prevent a short circuit by contact with the first conductive housing 11. The first contact arm 310 of the first signal terminal S1 projects at least partially into the first slot 211 of the first insulating fixing block 21. The first contact arm 310 of the second signal terminal S2 extends at least partially into the second slot 212 of the first insulating fixing block 21.Similarly, the fifth fixing block 341 and the sixth fixing block 342 are installed in the corresponding second terminal module installation slot 123. The third fixing sections 321 of the second conductive terminal 32 are arranged upside down in the second terminal module installation slot 123 to prevent a short circuit by contact with the second conductive housing 12. The second contact arm 320 of the third signal terminal S3 projects at least partially into the third slot 221 of the second insulating fixing block 22. The second contact arm 320 of the fourth signal terminal S4 extends at least partially into the fourth slot 222 of the second insulating fixing block 22.

[0085] The mounting block 5 is then attached to the first conductive housing 11 and the second conductive housing 12. The first fixing section 311 and the second fixing section 312 of the first conductive terminal 31 are received in the first terminal module installation slot 113 and the first receiving groove 522, respectively. The third fixing section 321 and the fourth fixing section 322 of the second conductive terminal 32 are received in the second terminal module installation slot 123 and the second receiving groove 532, respectively. The first terminal module installation slot 113 is a circumferential slot surrounded by multiple walls of the first conductive housing 11, and adjacent first terminal module installation slots 113 are spaced apart from each other. Therefore, the first fixing section 311 of the first conductive terminal 31 can be better shielded.The second terminal module installation slot 123 is a circumferential slot surrounded by a plurality of walls of the second conductive housing 12, and adjacent second terminal module installation slots 123 are spaced apart. Therefore, the third fixing section 321 of the second conductive terminal 32 can be better shielded. The first receiving groove 522 is a circumferential groove surrounded by a plurality of walls of the mounting block 5, and adjacent first receiving grooves 522 are spaced apart. Therefore, the second fixing section 312 of the first conductive terminal 31 can be better shielded. The second receiving groove 532 is a circumferential groove surrounded by a plurality of walls of the mounting block 5, and adjacent second receiving grooves 532 are spaced apart. Therefore, the fourth fixing section 322 of the second conductive terminal 32 can be better shielded.When the mounting block 5 is mounted, the mounting block 5 touches the rear ends of the first partitions 114 and the second partitions 124, further improving the shielding effect.

[0086] It is understandable to the person skilled in the art that the sequence of steps in the above assembly method can be flexibly adapted as required and is not described again in the present invention.

[0087] With reference to Fig. 3, Fig. 10 and Fig. In the illustrated embodiment of the present invention, the electrical connector 100 further comprises a cover or top plate 13, which is fixed to the first upper surface 1111 of the first conductive housing 11 and covers the weight-reducing grooves 1113. The top plate 13 has a flat surface so that, when the electrical connector 100 is mounted on the circuit board 200, a suction cup can adhere to the top plate 13 and hold the electrical connector 100 in place. In one embodiment of the present invention, the top plate 13 is a polyester film.

[0088] According to Fig. 33 to Fig. In another embodiment of the first grounding plate 41 and the second grounding plate 42 of the present invention, the first relief groove 4151b of the first section of the elastic arm 4151 is an open groove. At this point, the first elastic contact arm 4151a is arranged on one side of the first section of the elastic arm 4151. Likewise, the second relief groove 4152b of the second section of the elastic arm 4152 is an open groove. At this point, the second elastic contact arm 4152a is arranged on one side of the second section of the elastic arm 4152. In one embodiment of the present invention, the first elastic contact arm 4151a and the second elastic contact arm 4152a are arranged offset along the first direction A1-A1.

[0089] Similarly, the third relief groove 4251b of the third section of the elastic arm 4251 is an open groove. At this point, the third elastic contact arm 4251a is arranged on one side of the third section of the elastic arm 4251. Likewise, the fourth relief groove 4252b of the fourth section of the elastic arm 4252 is an open groove. At this point, the fourth elastic contact arm 4252a is arranged on one side of the fourth section of the elastic arm 4252. In one embodiment of the present invention, the third elastic contact arm 4251a and the fourth elastic contact arm 4252a are arranged offset along the first direction A1-A1.

[0090] According to Fig. 36 to Fig.In a further embodiment of the first mass plate 41 and the second mass plate 42 of the present invention, the first section of the elastic arm 4151 is not provided with the first relief groove 4151b; and the second section of the elastic arm 4152 is not provided with the second relief groove 4152b. The third section of the elastic arm 4251 is not provided with a third relief groove 4251b; and the fourth section of the elastic arm 4252 is not provided with the fourth relief groove 4252b. Only the first intermediate section 4150 of the first elastic mass arm 415 is in contact with the tongue plate 301. Only the second intermediate section 4250 of the second elastic mass arm 425 is in contact with the tongue plate 301.

[0091] The above embodiments serve only to illustrate the present invention and do not limit the technical solutions described herein. This description should be understood from the perspective of a person skilled in the art. Although detailed in the embodiments of the present invention described above, the person skilled in the art should understand that modifications or equivalent substitutions may still be made to the application, and that all technical solutions and improvements that do not deviate from the spirit and scope of the application should be covered by the claims of the application.

Claims

[1] An electrical connector (100), characterized by that it includes: a conductive housing (1), wherein the conductive housing (1) defines a receiving slot (101) configured to at least partially receive a mating module (300) along a first direction (A1-A1); wherein the conductive housing (1) comprises a first conductive housing (11); a first terminal module (31a), wherein the first terminal module (31a) is at least partially arranged in the first conductive housing (11); wherein the first terminal module (31a) comprises a plurality of first conductive terminals (31); wherein the first conductive terminal (31) comprises a first fixing portion (311) and a first contact portion (3101); wherein the first contact portion (3101) protrudes into the receiving slot (101) and is configured to be electrically connected to the mating module (300); wherein the first conductive terminal (31) is not in contact with the first conductive housing (11); and a first ground plate (41), the first ground plate (41) comprising a first mounting plate (411) and a second mounting plate (412) opposite the first mounting plate (411); the first mounting plate (411) being mounted on the first conductive housing (11); the second mounting plate (412) being provided with a first elastic ground arm (415) projecting into the receiving slot (101). [2] The electrical connector (100) according to claim 1, wherein the first conductive housing (11) comprises a first protruding portion (112) disposed on one side of the receiving slot (101); the first protruding portion (112) comprises a second lower surface (1122) exposed to the receiving slot (101), a second upper surface (1121) opposite to the second lower surface (1122), and a first positioning post (1124) projecting beyond the second upper surface (1121); the first cover plate (411) at least partially covering the second upper surface (1121); the first mounting plate (411) defines a first mounting hole (4111) for fixing the first positioning post (1124). [3] The electrical connector (100) according to claim 1, wherein the first ground plate (41) comprises a first connecting plate (413) connecting one side of the first mounting plate (411) and one side of the second mounting plate (412); wherein the electrical connector (100) comprises a first insulating fixing block (21) fixed to the first conductive housing (11); the first insulating fixing block (21) comprises a first front surface (210) disposed adjacent to a front end of the receiving slot (101); the first connecting plate (413) abuts against and at least partially covers the first front surface (210) of the first insulating fixing block (21). [4] The electrical connector (100) according to claim 1, wherein one end of the first elastic ground arm (415) is fixed and another end of the first elastic ground arm (415) is movable along the first direction (A1-A1) after the mating module (300) is inserted into the receiving slot (101). [5] The electrical connector (100) of claim 2, wherein the first ground plate (41) comprises a first extension plate (414) extending from another side of the second mounting plate (412); wherein the first protruding portion (112) defines a first recess (1118) exposed to the second bottom surface (1122); wherein the first extension plate (414) is received in the first recess (1118). [6] The electrical connector according to claim 5, wherein the first extension plate is a movable end; and wherein the first extension plate is movable along the first direction. [7] The electrical connector (100) of claim 5, wherein the first protruding portion (112) comprises a first mounting block (1119) projecting into the first recess (1118); the first extension plate (414) defines a first mounting hole (4141) for receiving the first mounting block (1119). [8] The electrical connector (100) of claim 7, wherein a dimension of the first mounting hole (4141) along the first direction (A1-A1) is larger than a dimension of the first mounting block (1119) along the first direction (A1-A1). [9] The electrical connector (100) according to claim 3, wherein the first conductive housing (11) defines a first filling groove (1123); the first insulating fixing block (21) is formed in the first filling groove (1123) to be integrated with the first conductive housing (11). [10] The electrical connector (100) according to claim 9, wherein the first insulating fixing block (21) comprises a first slot (211) and a second slot (212); the first slot (211) and the second slot (212) are arranged side by side along a second direction (A2-A2); the second direction (A2-A2) is perpendicular to the first direction (A1-A1); wherein the first conductive terminal (31) comprises a first contact arm (310) connected to the first fixing portion (311); wherein the first contact portion (3101) is provided on the first contact arm (310); wherein the first terminal module (31a) comprises two first conductive terminals (31), which are a first signal terminal (S1) and a second signal terminal (S2), respectively; wherein the first contact arm (310) of the first signal terminal (S1) protrudes at least partially into the first slot (211); wherein the first contact arm (310) of the second signal terminal (S2) protrudes at least partially into the second slot (212).

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