Conductive module and electrical connector

Abstract

This utility model discloses a conductive module and an electrical connector. The electrical connector includes: an insulating shell with a receiving groove, and a conductive module assembled in the receiving groove; the conductive module includes: multiple sub-terminal assemblies disposed on a plastic wire frame, each sub-terminal assembly having a metal inner shell and a metal outer shell fixed to the front section of the metal inner shell; a first shield electrically connected to the metal inner shells of the multiple sub-terminal assemblies; a second shield welded to the metal outer shells of the multiple sub-terminal assemblies, the second shield having a connecting wall and a front wall, the connecting wall having a first main spring piece, and the front wall shielding the front end face of the plastic wire frame; the metal outer shell having a first outer wall and two first side walls, both of which have second main spring pieces, the first side walls being bent and extended with an extension portion, the extension portion being welded to the connecting wall, the common wall and the first outer wall and two first side walls of each metal outer shell together forming a mating cavity, the second main spring pieces and the first main spring pieces being arranged around the mating cavity, thereby reducing resonance.

Description

[Technical Field]

[0001] This utility model relates to a conductive module and an electrical connector, and more particularly to a conductive module and an electrical connector that can improve resonance. [Background Technology]

[0002] An electrical connector, such as the female connector in Chinese Patent CN202221516792.4, includes an insulating shell and multiple rows of female terminal assemblies fixed to the insulating shell. Each female terminal assembly has a shielding shell and female terminals housed within the shielding shell. The shielding shells of two adjacent female terminal assemblies in the same row have gaps between them and are not electrically connected. Each shielding shell has an upper shell and a lower shell that cooperate with each other. A spring is torn on the left and right side walls of each upper shell to cooperate with the shielding shell of the male connector for conductive connection.

[0003] However, because the shielding shells of two adjacent female terminal assemblies in the same row have gaps between them and are not conductive, it is easy for the potentials of the shielding shells in the same row to be unequal, causing ground mode resonance. Moreover, since the upper shell only has one spring on the left and right sides, when the female connector and the male connector are connected, the shielding shells of the upper shell and the male connector can only abut against each other through the springs on the left and right side walls of the upper shell. There are no springs on the upper and lower side walls of the upper shell to abut against each other, which can easily lead to the upper shell and the shielding shell of the male connector not being able to make contact and conduction on the upper and lower sides. Therefore, the grounding signal between the upper and lower sides needs to flow into the left and right side walls and then be led out through the springs on the left and right side walls. This prolongs the grounding return path between the upper and lower side walls of the upper shell, which in turn causes the grounding signal to not flow back to the grounding reference plane quickly, thus causing resonance.

[0004] Therefore, it is necessary to design a conductive module and electrical connector to solve the above-mentioned technical problems. [Utility Model Content]

[0005] The purpose of this utility model is to connect the extensions of multiple metal shells to the second shielding component, and to form a docking cavity by sharing a wall with the first outer wall and two first side walls of each metal shell. Multiple second main springs and first main springs are distributed around the docking cavity, thereby increasing the grounding return path and reducing the resonance of the conductive module and electrical connector.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A conductive module, characterized in that it comprises: a plastic frame; a plurality of sub-terminal assemblies disposed on the plastic frame, each sub-terminal assembly having a metal inner shell and a metal outer shell fixed to the front end of the metal inner shell; a first shielding member disposed on the plastic frame, the first shielding member being electrically connected to the metal inner shells of the plurality of sub-terminal assemblies; a second shielding member assembled on the front side of the plastic frame, the second shielding member being located in front of the first shielding member, and the second shielding member having at least one common wall and a front wall connected to the front end of the common wall, the common wall being welded to the metal outer shells of the plurality of sub-terminal assemblies, the common wall having at least one [missing information - likely a number] corresponding to each sub-terminal assembly. The first main spring sheet has a front wall that shields the front end of the plastic frame. The metal shell has a first outer wall and two first side walls extending from the left and right sides of the first outer wall toward the second shielding member. The first outer wall and the two first side walls are provided with at least one second main spring sheet that bends and extends toward the inside of the metal shell. Each first side wall has an extension that bends and extends away from the other first side wall on the side closest to the second shielding member. Each extension is welded to a common wall. The common wall, the first outer wall of each metal shell, and the two first side walls together form a mating cavity. A plurality of second main spring sheets and at least one first main spring sheet are arranged around the mating cavity.

[0008] Furthermore, each extension has multiple protrusions and multiple grooves arranged alternately on its side edge in the front-back direction. The two extensions of two adjacent metal shells in the left-right direction are joined together so that the protrusion of one extension enters the groove of the other extension, and the protrusion is welded and fixed to the common wall.

[0009] Furthermore, the plastic frame is injection molded outside the first shielding member, and the plastic frame has a support part located on the front side of the first shielding member. The upper and lower surfaces of the support part are provided with a plurality of first clearance grooves. The second shielding member has two common walls arranged opposite to each other in the vertical direction. The front wall connects the two common walls. The two common walls are respectively attached to the upper and lower surfaces of the support part. The plurality of first clearance grooves are used to allow the free ends of the corresponding plurality of first main spring pieces to make way. The front wall is attached to the front surface of the support part.

[0010] Furthermore, the rear side of the common wall is provided with multiple welding areas and a positioning part that bends and extends from at least one side edge of the welding area in the left-right direction away from the support. The welding area is welded to the first shielding member, and the positioning part abuts against the first side wall of the metal shell to position the metal shell in the left-right direction.

[0011] Furthermore, the first shielding member has a thick portion and a thin portion extending forward from the front end of the thick portion. The upper and lower surfaces of the thin portion are closer to the center of the first shielding member than the upper and lower surfaces of the thick portion in the vertical direction. The welding area of ​​the second shielding member is welded to the thin portion. Multiple sub-terminal assemblies are arranged in two rows on a plastic frame in the vertical direction. Each sub-terminal assembly has a pair of differential signal terminals. A metal inner shell covers the pair of differential signal terminals. The upper and lower surfaces of the thick portion are welded to the metal inner shells of the upper and lower rows of sub-terminal assemblies, respectively.

[0012] Furthermore, the first outer wall is welded to the metal inner shell, and each first sidewall is torn with two first abutting springs and a second abutting spring located between the two first abutting springs in the vertical direction. Each first abutting spring bends and extends from back to front and abuts against the metal inner shell, and the second abutting spring bends and extends from front to back and abuts against the metal inner shell.

[0013] Furthermore, the common wall is integrally connected with at least one first main spring plate extending forward and at least one first auxiliary spring plate extending backward. Each first outer wall and each first side wall are integrally connected with at least one second main spring plate extending forward and at least one second auxiliary spring plate extending backward. The second main spring plate of the first outer wall is directly opposite the first main spring plate of the common wall in the vertical direction, and the second auxiliary spring plate of the first outer wall is directly opposite the first auxiliary spring plate of the common wall.

[0014] Furthermore, a first shielding plate and a second shielding plate that are further away from the metal shell in the vertical direction are covered on the side of the metal shell away from the second shielding member. In the front-back direction, the front surface of the first shielding plate is flush with the front surface of the metal shell, and the first shielding plate is provided with a plurality of second clearance grooves for the free ends of the second main spring and the second auxiliary spring to make way. The second shielding plate covers the plurality of second clearance grooves.

[0015] Additionally, an electrical connector for mating with a mating connector having multiple mating components is characterized by comprising: an insulating shell having a receiving groove extending through it in a front-to-back direction; multiple conductive modules assembled in the receiving groove in a front-to-back direction, each conductive module having a plastic frame; multiple sub-terminal assemblies disposed on the plastic frame, each sub-terminal assembly having a pair of differential signal terminals; a metal inner shell covering the pair of differential signal terminals; a metal outer shell fixed to the front section of the metal inner shell and used to shield the differential signal terminals; a first shielding member disposed on the plastic frame, the first shielding member being electrically connected to the metal inner shells of the multiple sub-terminal assemblies; and a second shielding member assembled on the front side of the plastic frame, the second shielding member being located in front of the first shielding member, and the second shielding member having at least one common wall in a vertical direction and being connected to the front end of the common wall. A front wall, a common wall, is welded to the metal housing of multiple sub-terminal assemblies. The common wall is provided with at least one first main spring for each sub-terminal assembly. The front wall shields the front end face of the plastic frame. The side of the metal housing away from the second shield has a first outer wall. Two first side walls bend and extend from the left and right sides of the first outer wall toward the second shield. The first outer wall and the two first side walls are provided with at least one second main spring that bends and extends toward the inside of the metal housing. Each first side wall has an extension that bends and extends away from the other first side wall on the side close to the second shield. Each extension is welded to the common wall. The common wall, the first outer wall, and the two first side walls together form a docking cavity. Multiple second main springs and at least one first main spring are arranged around the docking cavity. The differential signal terminals and the docking assembly are docked in the docking cavity.

[0016] Furthermore, the second shielding component has two common walls spaced apart in the vertical direction and a front wall connected to the front end of the two common walls. Multiple sub-terminal assemblies are arranged in two rows on a plastic frame in the vertical direction. The two rows of metal shells are welded to the two common walls respectively, and each common wall is integrally connected with at least one first main spring plate extending forward and at least one first auxiliary spring plate extending backward.

[0017] Furthermore, each differential signal terminal has a soldering part for soldering to the cable. The cable is installed in the plastic frame and extends rearward into the receiving groove of the insulating shell. The plastic shell has a through groove running in the front-to-back direction. The upper and lower inner side walls of the plastic shell are each provided with a spring arm. The insulating shell is installed in the through groove in the front-to-back direction. The spring arm is used to fasten and fix the insulating shell. The cable extends rearward into the through groove. The left and right side walls of the plastic shell each have a lug extending outward. The two lugs are staggered in the left-to-right direction, and each lug has a through hole for a bolt to pass through.

[0018] Furthermore, each mating assembly has a pair of mating signal terminals and a shielding shell covering the pair of mating signal terminals. The distance between the shielding shell and the mating signal terminals in the vertical direction is equal to the distance between the metal inner shell and the differential signal terminals. When the electrical connector and the mating connector are mated, the rear end face of the shielding shell and the front end face of the metal inner shell abut against each other, and the pair of mating signal terminals and the pair of differential signal terminals are connected to each other inside the shielding shell.

[0019] Furthermore, each conductive module has multiple sub-terminal assemblies arranged in at least one row along the vertical direction, and a first shielding plate is provided between the differential signal terminals of two adjacent conductive modules along the vertical direction. The first shielding plate shields the side of the metal shell away from the second shielding member and extends forward beyond the differential signal terminal.

[0020] Compared with the prior art, the conductive module and electrical connector designed in this utility model have the following advantages:

[0021] This utility model's electrical connector has multiple conductive modules, each with a plastic frame. Multiple sub-terminal assemblies are disposed on the plastic frame, and each sub-terminal assembly has a metal inner shell and a metal outer shell fixed to the front of the metal inner shell. A first shield is disposed on the plastic frame and electrically connected to the metal inner shells of the multiple sub-terminal assemblies. A second shield is assembled on the front side of the plastic frame and welded to the metal outer shells of the multiple sub-terminal assemblies. This allows the multiple metal inner shells to be electrically connected to each other through the first shield, and the multiple metal outer shells to be electrically connected through the second shield, thereby ensuring that the potentials of the multiple metal inner shells and the multiple metal outer shells are equal. This avoids ground mode resonance caused by unequal potentials. Furthermore, the second shield has a common wall and a front wall connected to the front end of the common wall. The common wall has at least one first main spring corresponding to each sub-terminal assembly. The side of the metal outer shell away from the second shield has a first outer wall. Two first sidewalls bend and extend from the left and right sides of the first outer wall toward the second shielding member. Each of the first outer wall and the two first sidewalls is provided with at least one second main spring piece bending and extending toward the metal shell. Each first sidewall has an extension portion bending and extending away from the other first sidewall on the side closest to the second shielding member. Each extension portion is welded to a common wall. The common wall, the first outer wall, and the two first sidewalls together form a mating cavity. Multiple second main spring pieces and at least one first main spring piece are arranged around the mating cavity. Thus, when the mating connector and the electrical connector are mated together, multiple return paths are formed around the mating cavity because spring pieces are provided around the mating cavity. In this way, the noise current generated by the electromagnetic field radiated outward from the terminal in the mating cavity can be quickly discharged through the grounding return path around the mating cavity. This avoids the generation of resonance caused by the inability of the noise current to be discharged quickly, which is beneficial to the high-frequency performance of the electrical connector. [Attached Image Description]

[0022] Figure 1 This is an exploded perspective view of the electrical connector and backplate of this utility model.

[0023] Figure 2 This is a three-dimensional assembly diagram of the electrical connector and backplate of this utility model;

[0024] Figure 3 for Figure 2 Sectional view on AA;

[0025] Figure 4 This is an exploded perspective view of the conductive module of this utility model;

[0026] Figure 5 This is a partial exploded view of the conductive module of this utility model;

[0027] Figure 6 This is a front view of the conductive module of this utility model;

[0028] Figure 7 for Figure 6 Sectional view on BB;

[0029] Figure 8 for Figure 5 A magnified view of a portion of C;

[0030] Figure 9 This is a schematic diagram of the conductive module of this utility model;

[0031] Figure 10 This is a schematic diagram showing the connection between the electrical connector and the mating connector of this utility model;

[0032] Figure 11 for Figure 10 Sectional view on DD;

[0033] Figure 12 for Figure 11 A magnified view of a portion of E.

[0034] Explanation of reference numerals in the accompanying drawings for the specific implementation methods:

[0035]

[0036]

[0037]

Detailed Implementation Methods

[0038] To better understand the content of this utility model, a more detailed description of this utility model will now be provided in conjunction with specific implementation schemes and illustrations.

[0039] like Figures 1 to 12As shown in the figures, the conductive module F and electrical connector 1000 of this utility model define a vertical direction, and a left-right direction and a front-back direction perpendicular to the vertical direction. For ease of understanding of the figures, the forward direction in the front-back direction is the positive direction of the X-axis, the rightward direction in the left-right direction is the positive direction of the Y-axis, and the upward direction in the vertical direction is the positive direction of the Z-axis.

[0040] like Figures 1 to 12 As shown, the electrical connector 1000 of this utility model is used to mate with a mating connector 2000. The mating connector 2000 has multiple mating components H, each mating component H having a pair of mating signal terminals H1 and a shielding shell H2 covering the pair of mating signal terminals H1. The electrical connector 1000 includes: a plastic shell 1 having a through groove 11 extending in the front-back direction; an insulating shell 2 installed in the through groove 11 in the front-back direction, and the insulating shell 2 having a receiving groove 21 extending in the front-back direction; multiple conductive modules F assembled in the receiving groove 21 in the front-back direction; each conductive module F having a plastic frame 3; and a first shielding member 4 disposed in the plastic shell 1000. A frame 3 is assembled with a second shield 5 on the front side of the plastic frame 3, and the second shield 5 is located in front of the first shield 4. Multiple sub-terminal assemblies 6 are disposed on the plastic frame 3. Each sub-terminal assembly 6 has a metal inner shell 63 and a metal outer shell 64 fixed to the front section of the metal inner shell 63. Each sub-terminal assembly 6 also has a pair of differential signal terminals 62. The metal inner shell 63 covers the pair of differential signal terminals 62. The metal outer shell 64 is fixed to the front section of the metal inner shell 63 and is used to shield the differential signal terminals 62. The first shield 4 is electrically connected to the metal inner shell 63 of the multiple sub-terminal assemblies 6. The second shield 5 is welded to the metal outer shell 64 of the multiple sub-terminal assemblies 6.

[0041] like Figures 1 to 3As shown, the plastic shell 1 is rectangular (of course, in other embodiments, the plastic shell 1 can also be circular or other shapes), and the plastic shell 1 is used to fix a back plate G, which has a through hole G1 for the plastic shell 1 to pass through. The upper and lower inner sidewalls of the plastic shell 1 are respectively provided with a spring arm 12, each spring arm 12 extending from back to front and extending into the through groove 11, and the two spring arms 12 are used to fasten and fix the insulating shell 2, thereby restricting the rearward displacement of the insulating shell 2. The rear ends of the upper and lower sidewalls of the plastic shell 1 are also respectively provided with two limiting grooves 13, which are used to cooperate with the insulating shell 2, thereby restricting the forward displacement of the insulating shell 2. The plastic housing 1 has a lug 14 extending outward from each of its left and right side walls. The two lugs 14 are staggered in the left and right direction. In this embodiment, the two lugs 14 are arranged diagonally, and each lug 14 has a through hole 141 in the front and back direction. The back plate G has a connection hole G2 corresponding to the through hole 141. The bolt I passes through the connection hole G2 and the through hole 141, so that the electrical connector 1000 is fixed to the back plate G through the plastic housing 1.

[0042] like Figures 1 to 3 As shown, the insulating housing 2 is a rectangular frame (of course, in other embodiments, the insulating housing 2 can also be circular or other shapes). The outer surfaces of the upper and lower sidewalls of the insulating housing 2 are respectively provided with latching blocks 22 corresponding to the two spring arms 12. When the insulating housing 2 is assembled in the through groove 11, the two latching blocks 22 stop in front of the two spring arms 12, thereby preventing the insulating housing 2 from shifting backward. The rear sides of the upper and lower sidewalls of the insulating housing 2 are also provided with two limiting blocks 23. When the insulating housing 2 is assembled in the through groove 11, each limiting block 23 extends into the corresponding limiting groove 13, thereby restricting the forward displacement of the insulating housing 2. The left and right sidewalls of the insulating housing 2 are also provided with multiple latching grooves 24. Each latching groove 24 penetrates the sidewall of the insulating housing 2 in the left-right direction. The latching grooves 24 are used to cooperate with the conductive modules F, so that the multiple conductive modules F can be stably fixed in the receiving groove 21.

[0043] like Figures 4 to 9 As shown, in this embodiment, the number of conductive modules F is four (of course, in other embodiments, the number of conductive modules F can also be one, two, or other numbers not equal to four). The insulating housing 2 also has four snap-fit ​​slots 24 on each side wall in the left-right direction. Each conductive module F is assembled from back to front into the receiving slot 21, and its left and right sides respectively engage with one snap-fit ​​slot 24 on the left and right side walls of the insulating housing 2.

[0044] like Figure 4 and Figure 5As shown, each conductive module F has a longitudinally elongated plastic frame 3. Each plastic frame 3 has a latching arm 31 connected to its left and right side walls. Each latching arm 31 extends from front to back and is cantilevered. Each latching arm 31 engages with a latching groove 24 to latch, thereby fixing the conductive module F within the receiving groove 21 through the latching engagement of the latching arm 31 and the latching groove 24. The plastic frame 3 also has two rows of receiving grooves 32 (in other embodiments, the plastic frame 3 may have only one row of receiving grooves 32). Each receiving groove 32 is used to receive and fix a sub-terminal assembly 6. The plastic frame 3 also has a support portion 33, which is located between the two rows of receiving grooves 32 along the vertical direction. The upper and lower surfaces of the support portion 33 are provided with multiple first clearance grooves 331, which provide clearance for the second shielding member 5.

[0045] like Figures 4 to 9 As shown, each conductive module F also has a first shielding member 4, which is flat. A plastic frame 3 is injection molded outside the first shielding member 4 (of course, in other embodiments, the first shielding member 4 can also be inserted and fixed to the plastic frame 3). The support part 33 is located on the front side of the first shielding member 4, and the upper and lower surfaces of the first shielding member 4 are exposed in the upper and lower rows of receiving grooves 32, respectively, so that the first shielding member 4 can be welded and fixed to the metal inner shell 63 of the sub-terminal assembly 6 through the upper and lower surfaces. Specifically, the first shielding member 4 also has a thick part 41 and a thin part 42 extending forward from the front end of the thick part 41. The upper and lower surfaces of the thin part 42 are closer to the center of the first shielding member 4 in the vertical direction than the upper and lower surfaces of the thick part 41. The upper and lower surfaces of the thick part 41 are exposed in the upper and lower rows of receiving grooves 32, respectively, and the upper and lower surfaces of the thin part 42 are welded to the second shielding member 5.

[0046] like Figures 4 to 9As shown, each second shielding member 5 is assembled and fixed to the support portion 33 of the plastic frame 3. The second shielding member 5 has at least one common wall 51 and a front wall 52 connected to the front end of the common wall 51. The common wall 51 is welded to the metal shell 64 of the multiple sub-terminal assemblies 6. The common wall 51 has at least one first main spring piece 511 corresponding to each sub-terminal assembly 6. The front wall 52 covers the front end face of the plastic frame 3. Specifically, in this embodiment, the second shielding member 5 is a one-piece design and is U-shaped. That is, the number of common walls 51 of the second shielding member 5 is set to two and arranged opposite each other in the vertical direction. The front wall 52 connects the two common walls 51. The two common walls 51 are respectively attached to the upper and lower surfaces of the support portion 33, and the front wall 52 is attached to the front surface of the support portion 33. The front wall 52 not only connects the upper and lower common walls 51, thereby enabling the metal housings 64 of the multiple sub-terminal assemblies 6 that are interconnected with the two common walls 51 to conduct to each other, thus making the potentials of the multiple metal housings 64 equal and reducing resonance, but also makes it easier to install the second shield 5 on the plastic frame 3, thereby preventing the first main spring piece 511 on the common wall 51 from shifting and affecting the docking of the electrical connector 1000 and the mating connector 2000. Of course, in other embodiments, the second shielding member 5 can also be configured as a two-piece design, that is, the second shielding member 5 is configured as two L-shaped metal pieces, each metal piece having only one common wall 51 and a front wall 52 connected to the front end of the common wall 51. The two front walls 52 of the two metal pieces are in contact with each other and are conductive. The front wall 52 not only enables the two L-shaped metal pieces to be conductive with each other, but also makes it easier to position the L-shaped metal pieces on the plastic frame 3, thereby preventing the first main spring piece 511 on the common wall 51 from shifting and affecting the docking of the electrical connector 1000 and the mating connector 2000. In another embodiment, the second shielding member 5 can also be configured as a single L-shaped piece, that is, the second shielding member 5 has one common wall 51 and a front wall 52 connected to the front end of the common wall 51.

[0047] like Figure 4 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, each first common wall 51 is integrally connected with at least one forward-extending first main spring piece 511 and at least one rearward-extending first auxiliary spring piece 512. Specifically, there are multiple first main spring pieces 511 and multiple first auxiliary spring pieces 512, and the outer dimensions of the first main spring piece 511 are larger than those of the first auxiliary spring piece 512. The two common walls 51 are respectively attached to the upper and lower surfaces of the support portion 33, so that the multiple first clearance grooves 331 on the upper and lower surfaces of the support portion 33 can accommodate the free ends of the multiple first main spring pieces 511 and the multiple first auxiliary spring pieces 512. The rear side of each common wall 51 is also provided with multiple welding areas 513 and a positioning part 514 extending from at least one side edge of the welding area 513 in the left-right direction away from the support portion 33. The welding area 513 is welded to the thin part 42 of the first shielding member 4, and the positioning part 514 abuts against the sub-terminal assembly 6 to limit the left and right positions of the sub-terminal assembly 6. In this embodiment, a positioning part 514 is bent and extended on one side edge of the welding area 513 located on the leftmost and rightmost sides along the left and right directions, which is close to the metal shell 64. A positioning part 514 is bent and extended on both sides of the other welding areas 513 located in the middle position. The two positioning parts 514 connected to the left and right sides of a welding area 513 respectively abut against and limit each other with the two sub-terminal assemblies 6.

[0048] like Figure 4 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, each conductive module F is provided with multiple sub-terminal assemblies 6, which are arranged in at least one row in the vertical direction. In this embodiment, the multiple sub-terminal assemblies 6 are arranged in two rows on the plastic frame 3 in the vertical direction, and the two rows of sub-terminal assemblies 6 are staggered in the vertical direction. Of course, in other embodiments, a single row of sub-terminal assemblies 6 may also be provided on the plastic frame 3. Each sub-terminal assembly 6 has an insulating block 61 and a pair of differential signal terminals 62 fixed to the insulating block 61. Each differential signal terminal 62 has a fixing part 621 embedded in the insulating block 61, a contact part 622 extending forward from the fixing part 621 to the front end of the insulating block 61, and a welding part 623 extending backward from the rear end of the fixing part 621. The contact part 622 is used to mate with the mating signal terminal H1 of the mating connector 2000, and the welding part 623 is used to weld with a cable J. The cable J is mounted on the plastic frame 3 and extends backward into the receiving groove 21 of the insulating housing 2 and the through groove 11 of the plastic housing 1. The inner metal shell 63 covers a pair of differential signal terminals 62. Specifically, the inner metal shell 63 is fixed to the insulating block 61 and covers the outside of the soldering part 623 and the fixing part 621 of the differential signal terminals 62. The contact part 622 of the differential signal terminals 62 extends forward beyond the inner metal shell 63. The outer metal shell 64 covers the contact part 622 and provides shielding for the contact part 622.

[0049] like Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 11 As shown, the metal inner shell 63 has a front portion 631 and a rear portion 632 connected to the rear end of the front portion 631. The front portion 631 is U-shaped and is fixed to the insulating block 61. There is a gap between the front portion 631 and the first shield 4. Moreover, the distance between the shield H2 of the mating connector 2000 and the mating signal terminal H1 in the vertical direction is equal to the distance between the metal inner shell 63 and the differential signal terminal 62. When the electrical connector 1000 and the mating connector 2000 are mated, the rear end face of the shield H2 abuts against the front end face of the metal inner shell 63, and a pair of mating signal terminals H1 and a pair of differential signal terminals 62 are mated against each other on the shield H2. The rear part 632 is U-shaped, that is, an opening 6321 is provided on the side of the rear part 632 away from the first shield 4 along the vertical direction. The surface of the rear part 632 near the first shield 4 is welded to the thick part 41 of the first shield 4. In this way, the conductive module F can be stably fixed to the plastic frame 3 by welding the rear part 632 to the first shield 4. Moreover, the rear part 632 of the metal inner shell 63 of the upper and lower rows of sub-terminal assemblies 6 is welded to the upper and lower surfaces of the thick part 41 of the first shield 4 respectively, so that the upper and lower rows of sub-terminal assemblies 6 are fixed to the plastic frame 3.

[0050] like Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 11 and Figure 12 As shown, the metal casing 64 is U-shaped and has a first outer wall 641. Two first side walls 642 extend from the left and right sides of the first outer wall 641 toward the second shielding member 5. Each first side wall 642 extends from the side closest to the second shielding member 5 away from the other first side wall 642 with an extension portion 643. The extension portion 643 is welded to a common wall 51. The common wall 51 of the second shielding member 5, together with the first outer wall 641 and the two first side walls 642 of each metal casing 64, together form a mating cavity 644. In this embodiment, the two common walls 51 of the second shielding member 5 in the same conductive module F are both arranged with multiple metal casings 64 to form multiple mating cavities 644. That is, the common wall 51 located on the upper side of the second shielding member 5 simultaneously forms multiple mating cavities 644 with multiple metal casings 64 of the upper row of sub-terminal assemblies 6, and the common wall 51 located on the lower side simultaneously forms multiple mating cavities 644 with multiple metal casings 64 of the lower row of sub-terminal assemblies 6. In other words, each metal casing 64 and the common wall 51 form a docking cavity 644.

[0051] like Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 11 and Figure 12As shown, the rear section of the first outer wall 641 of each metal shell 64 is welded to the corresponding metal inner shell 63, and the first outer wall 641 and the two first side walls 642 are provided with at least one second main spring piece 645 that bends and extends toward the inside of the metal shell 64. Multiple second main spring pieces 645 and at least one first main spring piece 511 are arranged around each docking cavity 644. In this embodiment, the first outer wall 641 and each first side wall 642 of each metal shell 64 are integrally connected with at least one second main spring piece 645 extending forward and at least one second auxiliary spring piece 646 extending backward. One wall surface around each docking cavity 644 is provided with multiple first main spring pieces 511 and multiple first auxiliary spring pieces 512, and the other three walls are provided with multiple second main spring pieces 645 and multiple second auxiliary spring pieces 646. The spring pieces on each wall surface around each docking cavity 644 protrude toward the docking cavity 644. In each mating cavity 644, multiple second main spring pieces 645 are distributed on two opposing inner wall surfaces along the vertical direction, facing multiple first main spring pieces 511. Multiple second auxiliary spring pieces 646 are also facing multiple first auxiliary spring pieces 512. Along the horizontal direction, the second main spring pieces 645 of one first sidewall 642 and the second main spring pieces 645 of the other first sidewall 642 of the same metal outer shell 64 are facing each other. The two auxiliary spring pieces 644 of one first sidewall 642 and the two auxiliary spring pieces 644 of the other first sidewall 642 are also facing each other. The outer dimensions of the second main spring pieces 645 are larger than the outer dimensions of the second auxiliary spring pieces 646. Specifically, in this embodiment, each metal shell 64 has four second main spring tabs 645 and two second auxiliary spring tabs 646 on its first outer wall 641 and two first side walls 642. The four second main spring tabs 645 on the first outer wall 641 are arranged in two rows in the left-right direction, each row including two second main spring tabs 645. The two second auxiliary spring tabs 646 are arranged in one row in the front-back direction, and in the left-right direction, the two second auxiliary spring tabs 646 are located between the two rows of second main spring tabs 645. The common wall 51 corresponds to the four second main spring tabs 645 and two second auxiliary spring tabs 646 on the first outer wall 641 of a metal shell 64. It has four first main spring tabs 511 and two first auxiliary spring tabs 512 located on the other side of the docking cavity 644. In the up-down direction, the four first main spring tabs 511 and four second main spring tabs 645 on the upper and lower sides of each docking cavity 644 are directly opposite each other, and the outer dimensions of the first main spring tabs 511 are the same as the outer dimensions of the second main spring tabs 645. Along the vertical direction, the two first auxiliary spring pieces 512 and the two second auxiliary spring pieces 646 on the upper and lower sides of each mating cavity 644 are also arranged facing each other, and the outer dimensions of the first auxiliary spring piece 512 are the same as those of the second auxiliary spring piece 646.The four second main spring contacts 645 on each first sidewall 642 are arranged in two columns in the vertical direction. Each column includes two second main spring contacts 645. Two second auxiliary spring contacts 646 are arranged in a column in the front-to-back direction, and the two auxiliary spring contacts 646 are located between the two columns of second main spring contacts 645 in the vertical direction. Furthermore, the four second main spring contacts 645 of one of the two first sidewalls 642 in the same metal casing 64 are directly opposite to the four second main spring contacts 645 of the other first sidewall 642, and the two auxiliary spring contacts 646 of one of the first sidewalls 642 are also directly opposite to the two auxiliary spring contacts 646 of the other first sidewall 642. Of course, in other embodiments, each first outer wall 641 and each first side wall 642 may be provided with only two second main spring pieces 645 and one second auxiliary spring piece 646. Along the left-right direction, one second auxiliary spring piece 646 of the first outer wall 641 is located between two second main spring pieces 645. The common wall 51 is provided with two first main spring pieces 511 and one first auxiliary spring piece 512 corresponding to the two second main spring pieces 645 and one second auxiliary spring piece 646 of each first outer wall 641. Along the up-down direction, the two first main spring pieces 511 and the two second main spring pieces 645 are arranged opposite each other on both sides of each mating cavity 644, and the first auxiliary spring piece 512 and the second auxiliary spring piece 646 are arranged opposite each other. The lengths of the first main spring pieces 511 and the second main spring pieces 645 are the same.

[0052] like Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 11 and Figure 12 As shown, each extension 643 has multiple protrusions 6431 and multiple grooves 6432 alternately arranged on its side edge along the front-back direction. Two extensions 643 of two adjacent metal shells 64 are joined together in the left-right direction, so that the protrusion 6431 of one extension 643 enters the groove 6432 of the other extension 643. The protrusion 6431 is welded and fixed to the common wall 51. The arrangement of the protrusion 6431 increases the welding area between the metal shell 64 and the second shielding member 5, thereby facilitating the welding between the metal shell 64 and the second shielding member 5. Each first sidewall 642 is also torn with two first abutting springs 6421 and a second abutting spring 6422 located between the two first abutting springs 6421 in the vertical direction. Each first abutting spring 6421 bends and extends from back to front and abuts against the metal inner shell 63, and the second abutting spring 6422 bends and extends from front to back and abuts against the metal inner shell 63. The positioning part 514 of the second shielding member 5 is used to abut against the first side wall 642 of the metal shell 64 and to position the metal shell 64 in the left-right direction.

[0053] like Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 11 and Figure 12 As shown, a first shielding plate 7 and a second shielding plate 8, which are further away from the second shielding member 5, are covered on the side of the metal shell 64 in the vertical direction. That is, the first shielding plate 7 shields the opening 6321, and the front surface of the first shielding plate 7 is flush with the front surface of the metal shell 64 in the front-back direction. The first shielding plate 7 is provided with a plurality of second clearance grooves 71 for the free ends of the second main spring 645 and the second auxiliary spring 646 to make way. The second shielding plate 8 shields the plurality of second clearance grooves 71. The first shielding plate 7 is provided between the differential signal terminals 62 of two adjacent conductive modules F in the vertical direction, and the first shielding plate 7 extends forward beyond the differential signal terminals 62 to provide shielding for the differential signal terminals 62 of the two adjacent conductive modules F.

[0054] In summary, the conductive module F and electrical connector 1000 of this utility model have the following beneficial effects:

[0055] (1) Each conductive module F has a plastic frame 3, and multiple sub-terminal assemblies 6 are disposed on the plastic frame 3. Each sub-terminal assembly 6 has a metal inner shell 63 and a metal outer shell 64 fixed to the front of the metal inner shell 63. A first shielding member 4 is disposed on the plastic frame 3 and is electrically connected to the metal inner shells 63 of the multiple sub-terminal assemblies 6. A second shielding member 5 is assembled on the front side of the plastic frame 3 and is welded to the metal outer shells 64 of the multiple sub-terminal assemblies 6, so that the multiple metal inner shells 63 are electrically connected to each other through the first shielding member 4. The multiple metal shells 64 are electrically connected through the second shield 5, thereby making the potentials of the multiple metal inner shells 63 equal and the potentials of the multiple metal shells 64 equal, thus avoiding ground mode resonance caused by unequal potentials. Furthermore, the second shield 5 has a common wall 51 and a front wall 52 connected to the front end of the common wall 51. The common wall 51 has at least one first main spring tab 511 corresponding to each sub-terminal assembly 6. The metal shell 64 has a first outer wall 641 on the side away from the second shield 5, extending from the left and right sides of the first outer wall 641 towards... The second shielding member 5 has two bent and extended first sidewalls 642, a first outer wall 641, and two first sidewalls 642, each of which is provided with at least one second main spring piece 645 that bends and extends toward the metal shell 64. Each first sidewall 642 has an extension portion 643 that bends and extends away from the other first sidewall 642 on the side closest to the second shielding member 5. Each extension portion 643 is welded to a common wall 51. The common wall 51, the first outer wall 641, and the two first sidewalls 642 together form a mating cavity 644. Multiple second main spring pieces 645... At least one first main spring plate 511 is arranged around the docking cavity 644; thus, when the docking connector 2000 and the electrical connector 1000 are docked together, since multiple return paths are formed around the docking cavity 644, the noise current generated by the electromagnetic field radiated outward by the differential signal terminal 62 in the docking cavity 644 can be quickly discharged through the grounding return path around the docking cavity 644. This avoids the generation of resonance caused by the inability of the noise current to be discharged quickly, which is beneficial to the high-frequency performance of the electrical connector 1000.

[0056] (2) Each extension 643 has multiple protrusions 6431 and multiple grooves 6432 arranged alternately along the front-back direction on its side edge. The two extensions 643 of two adjacent metal shells 64 are joined together in the left-right direction, so that the protrusion 6431 of one extension 643 enters the groove 6432 of the other extension 643, and the protrusion 6431 is welded and fixed to the common wall 51. The protrusions 6431 and grooves 6432 of two adjacent metal shells 64 are joined together. Thus, before the metal shells 64 are welded to the second shielding member 5, the two adjacent metal shells 64 can be initially positioned in the left-right direction and the front-back direction by the joined protrusions 6431 and grooves 6432, which facilitates subsequent welding. Moreover, the protrusions 6431 are welded to the common wall 51. The arrangement of the protrusions 6431 in the left-right direction increases the welding area between the extension 643 and the common wall 51, so that the two can be welded and fixed more stably.

[0057] (3) The plastic frame 3 is injection molded onto the outside of the first shielding member 4. This injection molding fixes the first shielding member 4 and the plastic frame 3, making their positioning more secure. Furthermore, the subsequent metal inner shell 63 is welded to the first shielding member 4, thus stably fixing the sub-terminal assembly 6 onto the plastic frame 3 and preventing it from shifting due to external forces. The plastic frame 3 has a support portion 33 located on the front side of the first shielding member 4. The upper and lower surfaces of the support portion 33 are provided with multiple first clearance grooves 331. The second shielding member 5 has two common walls 51 arranged vertically. In this configuration, the front wall 52 is connected to two common walls 51, which are respectively attached to the upper and lower surfaces of the support portion 33. Thus, the support portion 33 can not only be used to fix the second shield 5, but the first clearance groove 331 on the support portion 33 can also make way for the free ends of multiple first main springs 511 and multiple first auxiliary springs 512. In this way, when the electrical connector 1000 and the mating connector 2000 are mated, the first clearance groove 331 can provide clearance for the first main springs 511 and the first auxiliary springs 512, thereby preventing the first main springs 511 and the first auxiliary springs 512 from being damaged by pressure.

[0058] (4) The rear side of the common wall 51 is provided with multiple welding areas 513 and a positioning part 514 extending from at least one side edge of the welding area 513 in the left and right direction away from the support part 33. The welding area 513 is welded to the first shield 4, which not only enables the first shield 4 and the second shield 5 to be grounded to each other, but also enables the second shield 5 to be stably positioned on the plastic frame 3 through the first shield 4. The positioning part 514 abuts against the first side wall 642 of the metal shell 64. In this way, the positioning part 514 can limit the metal shell 64 in the left and right direction, so as to avoid the situation where the first abutting spring 6421 and the second abutting spring 6422 on the metal shell 64 abut against the metal inner shell 63, and the metal inner shell 63 is subjected to the holding force of the first abutting spring 6421 and the second abutting spring 6422 and the two first side walls 642 of the metal shell 64 will react to the two first side walls 642 of the metal shell 64, resulting in the two first side walls 642 of the metal shell 64 expanding outward.

[0059] (5) The first shielding member 4 has a thick part 41 and a thin part 42 extending forward from the front end of the thick part 41. The upper and lower surfaces of the thin part 42 are closer to the center of the first shielding member 4 than the upper and lower surfaces of the thick part 41 in the vertical direction. The thick part 41 facilitates the welding of the upper and lower surfaces of the thick part 41 of the first shielding member 4 to the upper and lower rows of metal inner shells 63, thereby positioning the upper and lower rows of sub-terminal assemblies 6. The thin part 42 facilitates the installation of the welding area 513 of the second shielding member 5 on the upper and lower surfaces of the thin part 42, avoiding interference between the welding area 513 of the second shielding member 5 and the front part 631 of the metal inner shell 63 when the second shielding member 5 is installed on the plastic frame 3, or the welding area 513 of the second shielding member 5 pushes the metal inner shell 63 away from the first shielding member 4, resulting in a gap between the rear part 632 of the metal inner shell 63 and the upper or lower surface of the thick part 4 of the first shielding member 4, which would prevent the metal inner shell 63 from being welded to the first shielding member 4.

[0060] (6) Each first sidewall 642 is torn with two first abutment springs 6421 and a second abutment spring 6422 located between the two first abutment springs 6421 in the vertical direction. Each first abutment spring 6421 bends forward and abuts against the metal inner shell 63, and each second abutment spring 6422 bends backward and abuts against the metal inner shell 63. The arrangement of the first abutment springs 6421 and the second abutment spring 6422 increases the contact between the metal outer shell 64 and the metal inner shell 63. This increases the grounding return path, allowing interference noise generated by the pair of differential signal terminals 62 in the metal inner shell 63 to flow out quickly, reducing resonance. Furthermore, the first abutment spring 6421 optimizes the stake effect at the rear end of the first sidewall 642. Specifically, when the first abutment spring 6421 is not provided, since the rear end of the second abutment spring 6422 is a free end, it interacts with the portion of the first sidewall 642 located behind the second abutment spring 6422 (hereinafter referred to as the rear end of the first sidewall 642). The two sides are spaced apart. When the current in the metal casing 64 flows from front to back to the rear end of the first sidewall 642, the current at the rear end of the first sidewall 642 cannot flow out quickly to the ground reference plane, resulting in a poor ground return path. In other words, due to the poor ground return path, the current cannot flow out quickly, and the accumulated current at the rear end of the first sidewall 642 is not conducive to the transmission of signals in the differential signal terminal 62. In this application, a first abutting spring 6421 extending from back to front is further provided at this location. That is, the rear end of the first abutting spring 6421 is integrally connected to the rear end of the first sidewall 642. This allows the current at the rear end of the first sidewall 642 to flow out quickly to the ground reference plane through the first abutting spring 6421 when the current in the metal casing 64 flows from front to back to the rear end of the first sidewall 642, thereby optimizing the ground return path at this location. This reduces the stake effect caused by the poor ground return path at the rear end of the first sidewall 642, which is beneficial to the transmission of signals in the differential signal terminal 62.

[0061] (7) The common wall 51 is integrally connected with at least one forward-extending first main spring piece 511 and at least one rearward-extending first auxiliary spring piece 512. Each first outer wall 641 and each first side wall 642 are integrally connected with at least one forward-extending second main spring piece 645 and at least one rearward-extending second auxiliary spring piece 646. The second main spring piece 645 of the first outer wall 641 is directly opposite to the first main spring piece 511 of the common wall 51 along the vertical direction, and the second auxiliary spring piece 646 of the first outer wall 641 is directly opposite to the first auxiliary spring piece 512 of the common wall 51. In this way, the arrangement of the first main spring piece 511, the second main spring piece 645, the first auxiliary spring piece 512 and the second auxiliary spring piece 646 can increase the return path between the shield shell H2 of the electrical connector 1000 and the mating connector 2000, thereby reducing resonance. Moreover, the extension direction of the first auxiliary spring piece 512 is opposite to the extension direction of the first main spring piece 511. The front end of 511 is a free end, and its front end is spaced apart from the front end of the second shield 5. If the second shield 5 is not provided with a first auxiliary spring 512 extending from front to back, the current on the part of the second shield 5 in front of the first main spring 511 will accumulate and cannot flow out quickly to the ground reference plane, resulting in a poor ground return path at that point. As a result, the front end of the second shield 5 will affect the differential signal terminal 62 due to the accumulation of current. The provision of the first auxiliary spring 512 can allow the accumulated current at the front end of the second shield 5 to flow out quickly through the first auxiliary spring 512, thus reducing the stake effect caused by the poor ground return path at the front end of the second shield 5. Similarly, the extension direction of the second auxiliary spring 646 is opposite to the extension direction of the second main spring 645. The second auxiliary spring 646 can also reduce the current accumulation in the part of the metal casing 64 in front of the second main spring 645, thereby reducing the stake effect.

[0062] (8) The distance between the shielding shell H2 of the mating connector 2000 and the mating signal terminal H1 in the vertical direction is equal to the distance between the metal inner shell 63 of the electrical connector 1000 and the differential signal terminal 62. When the electrical connector 1000 and the mating connector 2000 are mated, the rear end face of the shielding shell H2 and the front end face of the metal inner shell 63 abut against each other, and a pair of mating signal terminals H1 and a pair of differential signal terminals 62 are mated inside the shielding shell H2. This makes the distance between the mating signal terminal H1 and the shielding shell H2 equal to the distance between the differential signal terminal 62 and the metal inner shell 63, thereby making the impedance matching of the mating signal terminal H1 and the differential signal terminal 62.

[0063] Therefore, the above detailed description is only a description of the preferred embodiment of this utility model and is not intended to limit the patent scope of this utility model. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. A conductive module, characterized in that, include: A plastic frame; Multiple sub-terminal assemblies are disposed on a plastic frame, each sub-terminal assembly having a metal inner shell and a metal outer shell fixed to the front end of the metal inner shell; A first shielding component is disposed on a plastic frame, and the first shielding component is electrically connected to the metal inner shell of multiple sub-terminal assemblies; A second shielding component is assembled on the front side of the plastic frame. The second shielding component is located in front of the first shielding component. The second shielding component is provided with at least one common wall and a front wall connected to the front end of the common wall. The common wall is welded to the metal shell of a plurality of sub-terminal assemblies. The common wall is provided with at least one first main spring piece for each sub-terminal assembly. The front wall covers the front end face of the plastic frame. The metal casing has a first outer wall and two first side walls extending from the left and right sides of the first outer wall toward the second shielding member. The first outer wall and the two first side walls are provided with at least one second main spring piece that bends and extends toward the inside of the metal casing. Each first side wall has an extension portion that bends and extends away from the other first side wall on the side closest to the second shielding member. Each extension portion is welded to a common wall. The common wall, the first outer wall of each metal casing, and the two first side walls together form a mating cavity. A plurality of second main spring pieces and at least one first main spring piece are arranged around the mating cavity.

2. The conductive module as described in claim 1, characterized in that: Each extension has multiple protrusions and multiple grooves arranged alternately along the front-to-back direction on its side edge. The two extensions of two adjacent metal shells are joined together in the left-to-right direction, so that the protrusion of one extension enters the groove of the other extension, and the protrusion is welded and fixed to the common wall.

3. The conductive mold set of claim 1, wherein: The plastic frame is injection molded outside the first shielding component, and the plastic frame has a support part located on the front side of the first shielding component. The upper and lower surfaces of the support part are provided with multiple first clearance grooves. The second shielding component has two common walls arranged opposite to each other in the vertical direction. The front wall connects the two common walls. The two common walls are respectively attached to the upper and lower surfaces of the support part. The multiple first clearance grooves are used to allow the free ends of the corresponding multiple first main spring pieces to make way. The front wall is attached to the front surface of the support part.

4. The conductive module as described in claim 3, characterized in that: The rear side of the common wall is provided with multiple welding areas and a positioning part that bends and extends from at least one side edge of the welding area in the left-right direction away from the support. The welding area is welded to the first shielding member, and the positioning part abuts against the first side wall of the metal shell to position the metal shell in the left-right direction.

5. The conductive module as described in claim 4, characterized in that: The first shield has a thick portion and a thin portion extending forward from the front end of the thick portion. The upper and lower surfaces of the thin portion are closer to the center of the first shield than the upper and lower surfaces of the thick portion in the vertical direction. The welding area of ​​the second shield is welded to the thin portion. Multiple sub-terminal assemblies are arranged in two rows in the vertical direction. Each sub-terminal assembly has a pair of differential signal terminals. A metal inner shell covers the pair of differential signal terminals. The upper and lower surfaces of the thick portion are welded to the metal inner shells of the upper and lower rows of sub-terminal assemblies, respectively.

6. The conductive module as described in claim 1, characterized in that: The first outer wall is welded to the metal inner shell. Each first sidewall is torn with two first abutting springs and a second abutting spring located between the two first abutting springs in the vertical direction. Each first abutting spring bends and extends from back to front and abuts against the metal inner shell, and the second abutting spring bends and extends from front to back and abuts against the metal inner shell.

7. The conductive module as described in claim 1, characterized in that: The common wall is integrally connected with at least one first main spring plate extending forward and at least one first auxiliary spring plate extending backward. Each first outer wall and each first side wall are integrally connected with at least one second main spring plate extending forward and at least one second auxiliary spring plate extending backward. The second main spring plate of the first outer wall is directly opposite the first main spring plate of the common wall in the vertical direction, and the second auxiliary spring plate of the first outer wall is directly opposite the first auxiliary spring plate of the common wall.

8. The conductive module as described in claim 7, characterized in that: A first shielding plate and a second shielding plate that are further away from the metal shell in the vertical direction are covered on the side of the metal shell away from the second shielding member. In the front-back direction, the front surface of the first shielding plate is flush with the front surface of the metal shell. The first shielding plate is provided with a plurality of second clearance grooves for the free ends of the second main spring and the second auxiliary spring to make way. The second shielding plate covers the plurality of second clearance grooves.

9. An electrical connector for mating with a mating connector having a plurality of mating components, characterized in that, include: An insulating shell has a receiving groove extending through it in the front-to-back direction; Multiple conductive modules are assembled in the receiving groove along the front-to-back direction. Each conductive module has a plastic frame. Multiple sub-terminal assemblies are set in the plastic frame. Each sub-terminal assembly has a pair of differential signal terminals, a metal inner shell covering the pair of differential signal terminals, and a metal outer shell fixed to the front of the metal inner shell to shield the differential signal terminals. A first shielding component is disposed on a plastic frame, and the first shielding component is electrically connected to the metal inner shell of multiple sub-terminal assemblies; A second shielding component is assembled on the front side of the plastic frame. The second shielding component is located in front of the first shielding component. The second shielding component has at least one common wall and a front wall connected to the front end of the common wall in the vertical direction. The common wall is welded to the metal shell of multiple sub-terminal assemblies. The common wall has at least one first main spring piece corresponding to each sub-terminal assembly. The front wall covers the front end face of the plastic frame. The metal casing has a first outer wall on the side away from the second shielding member. Two first side walls bend and extend from the left and right sides of the first outer wall toward the second shielding member. The first outer wall and the two first side walls are provided with at least one second main spring piece that bends and extends toward the inside of the metal casing. Each first side wall has an extension portion that bends and extends away from the other first side wall on the side close to the second shielding member. Each extension portion is welded to a common wall. The common wall, the first outer wall, and the two first side walls together form a docking cavity. A plurality of second main spring pieces and at least one first main spring piece are arranged around the docking cavity. The differential signal terminals and the docking assembly are docked in the docking cavity.

10. The electrical connector as claimed in claim 9, characterized in that: The second shielding component has two common walls spaced apart in the vertical direction and a front wall connected to the front end of the two common walls. Multiple sub-terminal assemblies are arranged in two rows on a plastic frame in the vertical direction. The two rows of metal shells are welded to the two common walls respectively, and each common wall is integrally connected with at least one first main spring plate extending forward and at least one first auxiliary spring plate extending backward.

11. The electrical connector as claimed in claim 9, characterized in that: Each differential signal terminal has a soldering part for soldering to a cable. The cable is mounted on a plastic frame and extends rearward into the receiving groove of the insulating housing. The plastic housing has a through groove running in the front-to-back direction. The upper and lower inner side walls of the plastic housing are each provided with a spring arm. The insulating housing is mounted in the through groove in the front-to-back direction. The spring arm is used to fasten and fix the insulating housing. The cable extends rearward into the through groove. The left and right side walls of the plastic housing each have a lug extending outward. The two lugs are staggered in the left-to-right direction, and each lug has a through hole for a bolt to pass through.

12. The electrical connector as claimed in claim 9, characterized in that: Each mating assembly has a pair of mating signal terminals and a shielding shell covering the pair of mating signal terminals. The distance between the shielding shell and the mating signal terminals in the vertical direction is equal to the distance between the metal inner shell and the differential signal terminals. When the electrical connector and the mating connector are mated, the rear end face of the shielding shell and the front end face of the metal inner shell abut against each other, and the pair of mating signal terminals and the pair of differential signal terminals are connected to each other inside the shielding shell.

13. The electrical connector as claimed in claim 9, characterized in that: Each conductive module has multiple sub-terminal assemblies arranged in at least one row along the vertical direction. A first shielding plate is provided between the differential signal terminals of two adjacent conductive modules along the vertical direction. The first shielding plate shields the side of the metal shell away from the second shielding member and extends forward beyond the differential signal terminal.

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