Electric connector and plugging module thereof

Abstract

The invention discloses an electric connector and a plugging module thereof, and the plugging module comprises a plastic housing, a plurality of grounding terminals disposed in the plastic housing, signal terminals disposed between every two adjacent grounding terminals, and a shielding sheet disposed on one side surface of the plastic housing. One end of each grounding terminal and one end of each signal terminal extend out of the plastic shell to form a matching end, the other end of each grounding terminal and one end of each signal terminal extend out of the plastic shell to form an installation end, first riveting columns are formed in the positions, corresponding to the grounding terminals, of the plastic shell, and first riveting holes are formed in the positions, corresponding to the first riveting columns, of the shielding sheet. And the first riveting column is riveted in the first riveting hole. The electric connector comprises an electric insulation shell and a plugging module arranged in the electric insulation shell. According to the electric connector and the plugging module thereof, the binding force between the shielding sheet and the plastic shell is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of electric connectors, and in particular to an electric connector and a plug-in module thereof. Background Art

[0002] With the development of 5G and 6G technologies, people have higher and higher demands on the transmission rate of modern data communication transmission systems. As the core bridge of data communication, the SI performance of high-speed backplane connectors will directly affect the transmission rate of modern data communication transmission systems. High-speed backplane connectors usually include a housing and several plug-in modules installed in the assembly housing. Each plug-in module includes a plastic shell and a plurality of ground terminals and a plurality of signal terminals arranged in the plastic shell, wherein each two adjacent signal terminals form a group of differential signal pairs, and each group of differential signal pairs is distributed between the corresponding two adjacent ground terminals.

[0003] The shielding sheets are arranged between the plug-in modules of the high-speed backplane connector to effectively reduce the crosstalk of the internal lines of the connector. These shielding sheets reduce the electromagnetic coupling between the signals, thereby greatly improving its SI performance to meet the transmission requirements of higher speeds. These shielding sheets are usually arranged one by one on the same side of each plug-in module, for example, these shielding sheets are arranged one by one on the left side or right side of each plug-in module to shield the signal crosstalk of another adjacent plug-in module. Therefore, the structure of the shielding sheet is very important.

[0004] In the related art, when setting the shielding sheet, the shielding sheet is connected to the corresponding side of the plastic shell of the plug-in module, and the shielding sheet is in contact with the grounding terminal in the plastic shell of the corresponding plug-in module, so as to realize the grounding shielding function; when setting the shielding sheet, a plurality of spaced breakpoint-type convex bulges are provided at the position corresponding to each grounding terminal on the shielding sheet, and a breakpoint-type groove body tightly matched with the breakpoint-type convex bulge is provided on the plastic shell, so that the shielding sheet is attached to one side of the plastic shell, but the attachment effect is not ideal and the structure is relatively complex, and the shielding sheet is easy to loosen; when setting the shielding sheet, in order to strengthen the connection strength between the shielding sheet and the plastic without affecting the shielding performance of the shielding sheet and preventing signal crosstalk, a small number of card holes are provided in the periphery of the shielding sheet and other areas far from the connection terminals, and card posts are provided at the positions corresponding to the card holes on the plastic shell, and the strength of the shielding sheet attached to the plastic shell is strengthened by the cooperation of the card posts and the card holes. However, due to the small number of card posts and the provision of card posts and card holes in areas far from the terminals, the attachment effect is not ideal. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an electrical connector and a plug-in module thereof which can increase the bonding force between the shielding sheet and the plastic shell without affecting the shielding performance.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a plug-in module, including a plastic shell, a plurality of grounding terminals arranged in the plastic shell, a signal terminal arranged between each adjacent grounding terminal, and a shielding sheet arranged on a side of the plastic shell, one end of the grounding terminal and the signal terminal extends out of the plastic shell to form a mating end, and the other end extends out of the plastic shell to form a mounting end, first rivet columns are formed at positions corresponding to the plurality of grounding terminals on the plastic shell, a first rivet hole is arranged at a position corresponding to the first rivet column on the shielding sheet, and the first rivet column is riveted in the first rivet hole.

[0007] Furthermore, the number of the plurality of ground terminals is less than or equal to the total number of the plurality of ground terminals; and / or

[0008] Each of the first rivet posts is staggered with other first rivet posts in the length direction of the ground terminal; and / or

[0009] The length of the first rivet column is configured to be 0.2-2 mm, and the width is configured to be 0.2-2 mm.

[0010] Furthermore, when the dimension of the joint surface between the plastic shell and the shielding sheet along the length direction of the grounding terminal is greater than a first predetermined value, a plurality of first rivet columns spaced apart along the length direction of the grounding terminal are provided at positions on the plastic shell corresponding to the grounding terminal.

[0011] Furthermore, a first groove distributed along the length direction of the plastic shell is provided at a position corresponding to each grounding terminal; a convex bump matching with the first groove is protruded at a position corresponding to each first groove on the shielding sheet; the first rivet column protrudes from the first groove toward the shielding sheet, and the protruding length of the first rivet column is greater than the vertical distance from the first groove to a side surface of the shielding sheet facing away from the plastic shell.

[0012] Furthermore, the convex bump is formed by punching the side of the shielding sheet away from the plastic shell in the direction of the plastic shell, so that the portion of the shielding sheet facing away from the convex bump forms a second groove;

[0013] The dimensions of the first rivet column and the first rivet hole along the width direction of the grounding terminal are both greater than the width of the second groove; and / or the dimension of the first rivet column along the width direction of the grounding terminal is greater than the dimension along the length direction of the grounding terminal.

[0014] Further, the plug-in module is configured as an L-shaped vertical plug-in module, and the plastic shell of the vertical plug-in module includes a split first shell and a second shell, the first shell is distributed along a first direction, and the second shell is distributed along a second direction perpendicular to the first direction; the mating ends of the grounding terminal and the signal terminal both extend out of the first shell along the first direction, and the mounting ends both extend out of the second shell along the second direction; the first shell and the second shell are both provided with a first groove distributed along the length direction of the grounding terminal, and the first rivet column is provided at the first groove of the first shell;

[0015] The shielding sheet is configured to include a first shielding sheet attached to the first shell and a second shielding sheet integrally formed with the first shielding sheet and attached to the second shell, the first shielding sheet and the second shielding sheet are both provided with a second groove that cooperates with the corresponding first groove, and the first rivet hole is provided at a position on the first shielding sheet corresponding to the first rivet column.

[0016] Furthermore, a second rivet column is provided on the edge portion of the plastic shell outside the ground terminal and the signal terminal, and a second rivet hole riveted thereto is provided on the shielding sheet at a position corresponding to the second rivet column.

[0017] Furthermore, the distance between the surfaces of the ground terminal and the signal terminal in the thickness direction and the surface of the plastic shell is configured to be 0.2 mm.

[0018] Furthermore, each of the grounding terminals is provided with an elastic abutment member which penetrates the plastic shell in the direction of the shielding sheet to elastically abut against the shielding sheet; the height difference between the elastic abutment member and the grounding terminal is configured to be any value between 0.1 and 1 mm or is configured to be 0.2 mm.

[0019] In order to solve the above technical problems, another technical solution adopted by the present invention is to provide an electrical connector, comprising: an electrically insulating housing having a plugging abutment surface abutting against the complementary electrical connector when plugged in with the complementary electrical connector and a mounting abutment surface abutting against the substrate when mounted thereon; and

[0020] The plurality of plug-in modules are supported by an electrically insulating housing, wherein the mating ends of the plug-in modules extend out of the plug-in abutment surface of the electrically insulating housing, and the mounting ends extend out of the mounting abutment surface of the electrically insulating housing.

[0021] The electrical connector and the plug-in module thereof of the present invention adopt the structure shown in the above-mentioned embodiment, and can at least achieve the following functions and effects: a first rivet column is arranged at a position corresponding to the ground terminal on the plastic shell, and each first rivet column is staggered with other first rivet columns in the column direction of the ground terminal. Compared with the prior art, multiple connection points are added, so that the connection strength between the plastic shell and the shielding sheet is strengthened, and the special distribution mode of the first rivet columns has been verified countless times, and it is concluded that such a distribution mode will not affect the shielding sheet and performance, nor will it reduce the anti-crosstalk capability. The traditional breakpoint groove is designed as an integral groove that is adapted to the length of a section of the grounding terminal buried in the plastic shell, which can reduce structural complexity and manufacturing difficulty, while also improving shielding and anti-crosstalk capabilities; the integral groove is formed by a stamping process, so that a convex bulge is formed on the side of the shielding sheet facing the plastic shell, and the width of the groove determines the width of the contact surface between the convex bulge and the plastic shell, increasing the contact area and improving the shielding performance and anti-crosstalk capability; except for a second groove near the mounting end having a narrower width, the widths of the remaining second grooves are all wider to ensure the contact area between the shielding sheet and the plastic shell. In addition to increasing the contact area with the plastic shell, the wider convex bulge also increases its contact area with the elastic supporting member of the grounding terminal, thereby increasing the supporting force and stability with the elastic supporting member. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 It is a schematic structural diagram of an implementation mode of a plug-in module of the present invention.

[0024] Figure 2 yes Figure 1 Schematic diagram of the disassembly of the middle shielding plate and plastic shell.

[0025] Figure 3 yes Figure 1 Schematic diagram of the structure when the plug-in module is connected to the right-angle fixing piece.

[0026] Figure 4 yes Figure 1 Schematic diagram of the structure of the shielding sheet.

[0027] Figure 5 yes Figure 2 Enlarged view of part A in the figure.

[0028] Figure 6 It is a schematic structural diagram of an embodiment of an electrical connector of the present invention, in which part of the plug-in module is hidden.

[0029] Figure 7 It is a schematic structural diagram of an implementation mode of a plug-in module of the present invention.

[0030] Figure 8 yes Figure 7 Schematic diagram of the structure when the plastic shell and the connecting terminal are combined.

[0031] Fig. 9 yes Figure 7 Schematic diagram of the structure of the shielding sheet.

[0032] The meanings of the symbols in the accompanying drawings are:

[0033] Plug-in module 100; mating end 100a; mounting end 100b; plastic shell 110; first side edge 111; second side edge 112; fixing groove 112a; second fixing rib 112b; third side edge 113; fourth side edge 114; guide block 114a; first fixing rib 114b; first groove 115; first rivet column 116; second rivet column 117; first shell 11a; second shell 11b; connecting terminal 120; grounding terminal 12a; signal terminal 12b; shielding sheet 130; second groove 131; convex bump 132; first rivet hole 133; second rivet hole 134; first shielding sheet 13a; second shielding sheet 13b; right-angle fixing member 140; first fixing slit 141; second fixing slit 142; elastic abutting member 150; first window 151; second window 152;

[0034] Electrically insulating housing 200 ; plug-in cavity 210 ; guide slot 220 . DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0038] See also Figures 1 to 9 In this paper, combined with Figures 1 to 9 The structure shown is an exemplary description of the electrical connector and its plug-in module of the present invention, so as to more clearly show the various components and matching relationships of the electrical connector and its plug-in module. Figures 1 to 9 The electrical connector and its plug-in module shown are described in detail as an example, but this example is not used to limit the scope of the electrical connector and its plug-in module of the present invention. Except for the components that solve the necessary technical problems of the present invention, the remaining components can be regarded as non-essential technical elements. These non-essential technical elements can be replaced by other technical elements with the same or similar functions or structures in other embodiments, or these non-essential technical elements may not be needed in other embodiments.

[0039] See also Figure 1 The plug-in module 100 shown includes a plastic shell 110, a plurality of grounding terminals 12a disposed in the plastic shell 110, a signal terminal 12b disposed between each two adjacent grounding terminals 12a, and a shielding sheet 130 disposed on a side of the plastic shell 110. One end of the grounding terminal 12a and the signal terminal 12b (hereinafter collectively referred to as the connecting terminal 120) extends out of the plastic shell 110 to form a mating end 100a, and the other end extends out of the plastic shell 110 to form a mounting end 100b. Two adjacent signal terminals 12b form a group of differential signal pairs, and a group of differential signal pairs is distributed between each two adjacent grounding terminals 12a. First rivet studs 116 are formed at positions corresponding to the plurality of grounding terminals 12a on the plastic shell 110, and first rivet holes 133 are provided at positions corresponding to the first rivet studs 116 on the shielding sheet 130, and the first rivet studs 116 are riveted into the first rivet holes 133.

[0040] See also Figure 2In this embodiment, the plastic shell 110 is a rectangular sheet structure, which has a first side edge 111 and a second side edge 112 opposite to each other, a third side edge 113 located between the first side edge 111 and the second side edge 112, and a fourth side edge 114 opposite to the first side edge 111 and the second side edge 112. The extension direction of the first side edge 111 and the second side edge 112 is perpendicular to the extension direction of the third side edge 113 and the fourth side edge 114. If the first side edge 111 and the second side edge 112 are both distributed along the width direction of the plastic shell 110, the third side edge 113 and the fourth side edge 114 are both distributed along the length direction of the plastic shell 110. When the plug-in module 100 is applied to a vertical electrical connector (the mating end 100a and the mounting end 100b of the connection terminal 120 are oriented perpendicular to each other), the mating end 100a of the connection terminal 120 passes through the first side edge 111 (or the second side edge 112) of the plastic shell 110, and the mounting end 100b of the connection terminal 120 passes through the third side edge 113 (or the fourth side edge 114) of the plastic shell 110. When the plug-in module 100 is applied to a linear electrical connector (the mating end 100a and the mounting end 100b are on the same straight line and oriented in opposite directions), the mating end 100a and the mounting end 100b of the connection terminal 120 respectively pass through opposite sides of the plastic shell 110 (such as the first side edge 111 and the second side edge 112).

[0041] In this embodiment, if the extension direction of the first side edge 111 and the second side edge 112 is defined as the X-axis direction, and the direction of the third side edge 113 and the fourth side edge 114 is defined as the Y-axis direction (plug-in direction), then the plurality of connection terminals 120 can be evenly spaced along the X-axis direction. Among them, the mating ends 100a of the plurality of connection terminals 120 extend out of the first side edge 111 of the plastic shell 110 along the first direction (Y-axis direction), and the mating ends 100a of the plurality of connection terminals 120 are spaced along the X-axis direction; the mounting ends 100b of the plurality of connection terminals 120 extend out of the third side edge 113 of the plastic shell 110 along the second direction (X-axis direction) perpendicular to the first direction, and the mounting ends 100b of the plurality of connection terminals 120 are evenly spaced along the Y-axis direction. Each section of the connecting terminal 120 embedded in the plastic shell 110 is configured as a curved section (not shown), and the two ends of the curved section are respectively oriented in the Y-axis direction and the X-axis direction. It should be understood that the section of the connecting terminal 120 embedded in the plastic shell 110 is not limited to the above-mentioned curved shape. For example, when the plug-in module 100 is used in a linear electrical connector, the connecting terminal 120 is linear as a whole, and the section embedded in the plastic shell 110 is also a linear straight section. The distance from the surface of the section of the connecting terminal 120 embedded in the plastic shell 110 in the thickness direction to the surface of the plastic shell 110 is configured to be 0.2 mm.

[0042] Please continue to see Figure 2, a first groove 115 is provided on the plastic shell 110 at a position corresponding to each ground terminal 12a, and the first groove 115 is concavely provided from a side surface of the plastic shell 110 facing the shielding sheet 130 to a direction away from the shielding sheet 130. Each of the first grooves 115 is distributed along the length direction of the corresponding ground terminal 12a, and the length and distribution direction of each of the first grooves 115 are adapted to the length and distribution direction of a section of the corresponding ground terminal 12a buried in the plastic shell 110. Correspondingly, a convex bump 132 is provided on the shielding sheet 130 at a position corresponding to each of the first grooves 115, and the number of the convex bumps 132, the distribution length and distribution direction of each of the convex bumps 132 are adapted to the number of the first grooves 115, the distribution length and distribution direction of each of the first grooves 115, so that when the shielding sheet 130 is combined with the plastic shell 110, each of the convex bumps 132 is sunk into the corresponding first groove 115 and tightly fits with it. The convex bulge 132 has a convex surface that is in surface contact with one side of the plastic shell 110. Compared with the conventional method of approximating to line contact, the surface contact can increase the contact area between the shielding sheet 130 and the plastic shell 110, making the combination of the shielding sheet 130 and the plastic shell 110 more firm and stable. The convex bulge 132 is formed by stamping the side of the shielding sheet 130 away from the plastic shell 110 in the direction of the plastic shell 110, so that the portion of the shielding sheet 130 facing away from the convex bulge 132 forms a second groove 131. The width of the second groove 131 can be configured to be 0.1 to 3 mm, and the depth can be configured to be 0.05 to 1 mm. Among all the second grooves 131, the width of a second groove 131 (also referred to as the second groove 131 close to the mounting end 100b) at the angle between the mounting end 100b and the mating end 100a (i.e., the angle between the first side edge 111 and the third side edge 113) is smaller than the widths of the other second grooves 131, and the widths of the other second grooves 131 may be consistent.

[0043] Please continue to see Figure 2 , a plurality of first rivet studs 116 and second rivet studs 117 are provided on a side of the plastic shell 110 facing the shielding sheet 130, and the size (length) of the first rivet studs 116 and the second rivet studs 117 along the width direction of the grounding terminal 12a can be configured to be 0.2-2 mm, and the size (width) along the length direction of the grounding terminal 12a can be configured to be 0.2-2 mm. Preferably, the cross-section of the plurality of first rivet studs 116 is in the shape of a long strip, such as an ellipse. The second rivet stud 117 is configured as a cylindrical rivet stud, and the second rivet stud 117 can be arranged on the edge portion of the plastic shell 110 located outside the grounding terminal 12a and the signal terminal 12b.

[0044] The first rivet studs 116 are arranged at positions corresponding to the plurality of grounding terminals 12a on the plastic shell 110, and each of the first rivet studs 116 is staggered with other first rivet studs 116 in the length direction of the grounding terminal 12a. The number of the plurality of grounding terminals 12a is less than or equal to the total number of the plurality of grounding terminals 12a. Figure 2 As shown, the total number of the grounding terminals 12a is six, and the first rivet studs 116 are arranged at positions corresponding to three of the grounding terminals 12a on the plastic shell 110, specifically, a first rivet stud 116 is arranged at the second grounding terminal 12a from left to right, two first rivet studs 116 are arranged at intervals along the length direction of the fourth grounding terminal 12a, and a first rivet stud 116 is arranged at the fifth grounding terminal 12a. In different embodiments, several first rivet studs 116 may be arranged at the third side edge 113 of the plastic shell 110 close to the mounting end 100b as appropriate.

[0045] In the embodiment with the first groove 115, the convex ridge 132 and the second groove 131, for example Figure 2 In the illustrated embodiment, the first rivet column 116 is integrally formed at the position of the corresponding first groove 115, and the dimension of the first rivet column 116 along the width direction of the ground terminal 12a is greater than the width of the second groove 131. Preferably, the dimension of the first rivet column 116 along the width direction of the ground terminal 12a is greater than the dimension along the length direction of the ground terminal 12a. Specifically, a first rivet column 116 is provided at the position of the second first groove 115 from left to right on the plastic shell 110, two second rivet columns 117 are provided at the position of the fourth first groove 115, and a first rivet column 116 is provided at the position of the fifth first groove 115.

[0046] The first rivet stud 116 and the second rivet stud 117 are both protruded from the plastic shell 110 toward the shielding sheet 130, and the protruding length of them protruding from the plastic shell 110 is greater than the thickness of the shielding sheet 130 (that is, the first rivet stud 116 is protruded from the first groove 115 toward the shielding sheet 130, and the protruding length of the first rivet stud 116 is greater than the vertical distance from the first groove 115 to the side of the shielding sheet 130 away from the plastic shell 110; the second rivet stud 117 is protruded from the plastic shell 110 toward the shielding sheet 130, and the protruding length of the second rivet stud 117 is greater than the thickness of the shielding sheet 130). In this way, when the shielding sheet 130 is attached to the plastic shell 110, one end (protruding end) of the first rivet stud 116 and the second rivet stud 117 protruding from the shielding sheet 130 can be riveted to the side of the shielding sheet 130 away from the plastic shell 110 by a process such as hot pressing.

[0047] A first rivet hole 133 for the first rivet stud 116 to pass through is provided at a position corresponding to each first rivet stud 116 on the shielding sheet 130, and a second rivet hole 134 for the second rivet stud 117 to pass through and be riveted is provided at a position corresponding to each second rivet stud 117 on the shielding sheet 130. Specifically, corresponding to the first rivet stud 116 described above, one first rivet hole 133 is provided at the position of the first convex bump 132 on the shielding sheet 130, two first rivet holes 133 are provided at the position of the fourth convex bump 132, and one first rivet hole 133 is provided at the position of the fifth convex bump 132, and the dimensions of the first rivet holes 133 along the width direction of the grounding terminal 12a are all greater than the width of the second groove 131. When assembling the shielding sheet 130 and the plastic shell 110, firstly, align the first rivet column 116 and the second rivet column 117 with the corresponding rivet holes respectively, so that the convex bump 132 of the shielding sheet 130 is inserted into the first groove 115, and the first rivet column 116 and the second rivet column 117 are riveted to the corresponding rivet holes. For example, a hot pressing process is used to hot press the ends of the first rivet column 116 and the second rivet column 117 that pass through the shielding sheet 130 (the end away from the plastic shell 110), so that the outer circumferential size of the end is larger than the size of the corresponding rivet hole, so as to prevent the first rivet column 116 and the second rivet column 117 from escaping from the corresponding rivet hole. Furthermore, since the protruding length of the first rivet column 116 is greater than the vertical distance from the first groove 115 to the side of the shielding sheet 130 that is away from the plastic shell 110, and since the dimension of the first rivet column 116 along the width direction of the grounding terminal 12a is greater than the dimension of the second groove 131, the first rivet column 116 can be riveted to the portion of the shielding sheet 130 located outside the lateral sides of the second groove 131, rather than being riveted to the bottom of the second groove 131, thereby reducing the difficulty of the riveting process and improving the riveting efficiency.

[0048] See also Figure 6 When the plug-in module 100 is inserted into the electrical insulation housing 200 of the vertical electrical connector, the mating end 100a (first side edge 111) of the plug-in module 100 is inserted into the plug-in cavity 210 configured for the plug-in module 100 in the electrical insulation housing 200, the second side edge 112 is exposed from the electrical insulation housing 200, the mounting end 100b (third side edge 113) of the plug-in module 100 is exposed from the plug-in cavity 210 of the electrical insulation housing 200, and the fourth side edge 114 is partially located in the guide slot 220 configured for it in the electrical insulation housing 200, the guide slot 220 is located at one end of the plug-in cavity 210 and is connected thereto, and the length of the guide slot 220 along the Y-axis direction (plug-in direction) is greater than the length of the plug-in cavity 210 along the Y-axis direction, so as to firmly support the plug-in module 100 and lengthen the guide path.

[0049] See also Figure 3 The fourth side edge 114 of the plastic shell 110 is provided with a guide block 114a that is guided and matched with the guide slot 220 of the electrical insulating shell 200, and the fourth side edge 114 is provided with a first fixing rib 114b at a position close to the second side edge 112 (a section of the fourth side edge 114 away from the matching end 100a), and the first fixing rib 114b protrudes from the fourth side edge 114 in a direction away from the third side edge 113. The second side edge 112 of the plastic shell 110 (a side edge away from the matching end 100a) is provided with a fixing groove 112a, and the second side edge 112 of the plastic shell 110 is provided with a second fixing rib 112b at a position close to the fourth side edge 114, and the second fixing rib 112b, the fixing groove 112a and the first fixing rib 114b together form a fixing component that is fixedly matched with the right-angle fixing piece of the vertical electrical connector. The right-angle fixing member 140 is used to fix together a plurality of plastic shells 110 that are arranged in parallel and spaced apart from each other. The right-angle fixing member 140 is provided with a first fixing slit 141 at the position corresponding to the first fixing rib 114b of each plastic shell 110, and the first fixing rib 114b is accommodated in the first fixing slit 141; the right-angle fixing member 140 is formed with a second fixing slit 142 at the position corresponding to the second fixing rib 112b of each plastic shell 110, and the second fixing rib 112b is accommodated in the second fixing slit 142; the edge of the right-angle fixing member 140 is accommodated at the position of the fixing groove 112a.

[0050] See also Figure 5In order to enhance the contact performance between the ground terminal 12a and the shielding sheet 130 and ensure the contact stability between the shielding sheet 130 and the ground terminal 12a, an elastic abutment unit for elastically abutting the ground terminal 12a and the shielding sheet 130 is provided between the shielding sheet 130 and each ground terminal 12a. The elastic abutment unit can be defined as a plurality of elastic abutment members 150 arranged at intervals on the ground terminal 12a. A first window 151 is provided at a position facing each elastic abutment member 150 on a side of the plastic shell 110 facing the shielding sheet 130, that is, a plurality of first windows 151 distributed along the length direction thereof are provided on each second groove 131, and the plurality of first windows 151 of each second groove 131 are arranged one-to-one with the plurality of elastic abutment members 150 on the corresponding ground terminal 12a, and the elastic abutment member 150 is passed through the first window 151 and elastically abuts against the shielding sheet 130. Specifically, the elastic abutment 150 can be integrally formed at a position on the grounding terminal 12a that is opposite to the first window 151. For example, in the embodiment shown in the accompanying drawings, a second window 152 is provided at a position on each grounding terminal 12a that is opposite to the first window 151, and the second window 152 and the elastic abutment 150 are both formed by a stamping process. The elastic abutment 150 is connected to one side of the second window 152, and the other end extends obliquely toward the shielding sheet 130. The width of the elastic abutment 150 is configured to be 0.1 to 1 mm, and the height difference between the elastic abutment 150 and the grounding terminal is configured to be 0.1 to 1 mm, preferably 0.2 mm. When the shielding sheet 130 is assembled on the plastic shell 110, the convex bump 132 on the shielding sheet 130 is inserted into the first groove 115 and elastically abuts against the elastic member. With such a configuration, the distance between the shielding sheet 130 and the elastic resisting member 150 is shortened, and the length of the elastic resisting member 150 can be shortened so as to maintain a greater elastic force.

[0051] See also Figure 6 , Figure 6It is a schematic diagram of the structure of an embodiment of an electrical connector of the present invention. The electrical connector shown includes an electrically insulating housing 200 and a plurality of plug-in modules 100 arranged on the electrically insulating housing 200 and distributed in parallel and spaced apart. The plurality of plug-in modules 100 are evenly spaced along the thickness direction thereof, and the plurality of plug-in modules 100 are assembled together by the right-angle fixing member 140 described above after being plugged into the electrically insulating housing 200. A side surface of the electrically insulating housing 200 facing the mating end 100a can be defined as a plug-in abutment surface when plugged into a complementary electrical connector, and a side surface of the electrically insulating housing 200 facing the mounting end 100b can be defined as a mounting abutment surface for mounting with a substrate. The electrically insulating housing 200 has a plurality of plug-in cavities 210, and the plurality of plug-in modules 100 are plugged into the plug-in cavities 210 one by one. A guide slot 220 is provided at one end of each plug-in cavity 210 in the length direction, and the dimension of the guide slot 220 along the plug-in direction is greater than the length of the plug-in cavity 210 in the corresponding direction, so as to guide the guide block 114a described above and cover and support the plug-in module 100. The electrical insulation housing 200 is a well-known structure, so it will not be described one by one here.

[0052] See also Figures 7 to 9 , shows the structure of another embodiment of the plug-in module 100 of the present invention. In this embodiment, the plug-in module 100 includes a plastic shell 110, a ground terminal 12a and a signal terminal 12b, which have the same or similar structure or function as the embodiment shown above. The ground terminal 12a and the signal terminal 12b are collectively referred to as a connection terminal 120. The difference from the plug-in module 100 shown above is that:

[0053] The plug-in module 100 is configured as an L-shaped vertical plug-in module 100, and the plastic shell 110 of the vertical plug-in module 100 includes a split first shell 11a and a second shell 11b, the first shell 11a is distributed along the plug-in direction (first direction), and the second shell 11b is distributed along the installation direction (second direction) perpendicular to the plug-in direction. For example, the first shell 11a is distributed along the vertical direction, and the second shell 11b is distributed along the horizontal direction. The mating end 100a of each of the connecting terminals 120 extends out of the first shell 11a along the first direction, and the installation end 100b extends out of the second shell 11b along the second direction; all the mating ends 100a are arranged at intervals along a third direction perpendicular to the second direction in the horizontal direction, and all the installation ends 100b are also arranged at intervals along the third direction.

[0054] The first housing 11a and the second housing 11b are both provided with first grooves 115 distributed along the length direction of the ground terminal 12a. The first rivet studs 116 are provided at the multiple first grooves 115 of the first housing 11a, and the number of the multiple first grooves 115 is less than or equal to the number of all the first grooves 115 on the first housing 11a. The first housing 11a is provided with multiple second rivet studs 117 on both side edges facing the third direction, and the multiple second rivet studs 117 on each side edge are distributed at intervals along the plugging direction.

[0055] The shielding sheet 130 is configured to include a first shielding sheet 13a attached to the first shell 11a and a second shielding sheet 13b integrally formed with the first shielding sheet 13a and attached to the second shell 11b, and the first shielding sheet 13a and the second shielding sheet 13b are both provided with a second groove 131 that cooperates with the corresponding first groove 115, and the first rivet hole 133 is provided at a position on the first shielding sheet 13a corresponding to the first rivet column 116.

[0056] In this embodiment, when the dimension of the joining surface between the plastic shell 110 (e.g., the first shell 11a) and the shielding sheet 130 (e.g., the first shielding sheet 130) along the length direction of the grounding terminal 12a is greater than a first predetermined value, a plurality of first rivet columns 116 spaced apart along the length direction of the grounding terminal 12a are provided at positions corresponding to the grounding terminal 12a on the plastic shell 110.

[0057] The plug-in module 100 and the electrical connector of the present invention adopt the structure shown in the above-mentioned embodiment, and can at least achieve the following functions and effects: the first rivet column 116 is arranged at the position corresponding to the ground terminal 12a on the plastic shell 110, and each first rivet column 116 is staggered with other first rivet columns 116 in the column direction of the ground terminal 12a. Compared with the prior art, multiple connection points are added, so that the connection strength between the plastic shell 110 and the shielding sheet 130 is strengthened, and the shielding sheet 130 will not be affected and the performance will not be affected, and the anti-crosstalk capability will not be reduced. The traditional breakpoint groove is designed as an integral groove adapted to the length of a section of the ground terminal 12a buried in the plastic shell 110, which can reduce structural complexity and manufacturing difficulty, while also improving shielding and anti-crosstalk capabilities; the integral groove is formed by a stamping process, so that a convex 132 is formed on the side of the shielding sheet 130 facing the plastic shell 110, and the width of the groove determines the width of the contact surface between the convex 132 and the plastic shell 110. Different groove widths are set according to design requirements, which can further optimize high-speed signal transmission.

[0058] The above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A plug-in module, comprising a plastic shell, a plurality of grounding terminals disposed in the plastic shell, a signal terminal disposed between each adjacent grounding terminal, and a shielding sheet disposed on a side surface of the plastic shell, wherein one end of the grounding terminal and the signal terminal extends out of the plastic shell to form a mating end, and the other end extends out of the plastic shell to form a mounting end, characterized in that: First rivet columns are formed at positions corresponding to the plurality of grounding terminals on the plastic shell, first rivet holes are arranged at positions corresponding to the first rivet columns on the shielding sheet, and the first rivet columns are riveted into the first rivet holes.

2. The plug-in module according to claim 1, characterized in that: The number of the plurality of ground terminals is less than or equal to the total number of the plurality of ground terminals; and / or Each of the first rivet posts is staggered with other first rivet posts in the length direction of the ground terminal; and / or The length of the first rivet column is configured to be 0.2-2 mm, and the width is configured to be 0.2-2 mm.

3. The plug-in module according to claim 1, characterized in that: When the size of the combined surface of the plastic shell and the shielding sheet along the length direction of the grounding terminal is greater than a first predetermined value, a plurality of first rivet columns spaced apart along the length direction of the grounding terminal are arranged at positions corresponding to the grounding terminal on the plastic shell.

4. The plug-in module according to claim 1, characterized in that: The plastic shell is provided with a first groove distributed along the length direction thereof at a position corresponding to each grounding terminal; the shielding sheet is provided with a convex bump corresponding to each first groove and matched therewith; the first rivet column protrudes from the first groove toward the shielding sheet, and the protruding length of the first rivet column is greater than the vertical distance from the first groove to a side surface of the shielding sheet facing away from the plastic shell.

5. The plug-in module according to claim 4, characterized in that: The convex bump is formed by punching the side of the shielding sheet away from the plastic shell toward the plastic shell, so that the portion of the shielding sheet facing away from the convex bump forms a second groove; The dimensions of the first rivet column and the first rivet hole along the width direction of the grounding terminal are both greater than the width of the second groove; and / or the dimension of the first rivet column along the width direction of the grounding terminal is greater than the dimension along the length direction of the grounding terminal.

6. The plug-in module according to claim 4, characterized in that: The plug-in module is configured as an L-shaped vertical plug-in module, and the plastic shell of the vertical plug-in module includes a split first shell and a second shell, the first shell is distributed along a first direction, and the second shell is distributed along a second direction perpendicular to the first direction; the mating ends of the grounding terminal and the signal terminal both extend out of the first shell along the first direction, and the mounting ends both extend out of the second shell along the second direction; the first shell and the second shell are both provided with a first groove distributed along the length direction of the grounding terminal, and the first rivet column is provided at the first groove of the first shell; The shielding sheet is configured to include a first shielding sheet attached to the first shell and a second shielding sheet integrally formed with the first shielding sheet and attached to the second shell, the first shielding sheet and the second shielding sheet are both provided with a second groove that cooperates with the corresponding first groove, and the first rivet hole is provided at a position on the first shielding sheet corresponding to the first rivet column.

7. The plug-in module according to claim 1, characterized in that: A second rivet column is arranged on the edge portion of the plastic shell outside the ground terminal and the signal terminal, and a second rivet hole riveted to the second rivet column is arranged on the shielding sheet at a position corresponding to the second rivet column.

8. The plug-in module according to claim 1, characterized in that: The distance between the surfaces of the ground terminal and the signal terminal in the thickness direction and the surface of the plastic shell is configured to be 0.2 mm.

9. The plug-in module according to claim 1, characterized in that: Each of the grounding terminals is provided with an elastic supporting member which penetrates the plastic shell in the direction of the shielding sheet to elastically abut against the shielding sheet; the width of the elastic supporting member is configured to be 0.1-1 mm, and the height difference between the elastic supporting member and the grounding terminal is configured to be any value between 0.1 and 1 mm or to be configured to be 0.2 mm.

10. An electrical connector, characterized in that: include: An electrically insulating housing having a plugging abutment surface for abutting against the complementary electrical connector when plugged in with the complementary electrical connector and a mounting abutment surface for abutting against the substrate when mounted thereon; as well as A plurality of plug-in modules as claimed in any one of claims 1 to 9 are supported by an electrically insulating housing, wherein the mating ends of the plug-in modules extend out of the plug-in abutment surface of the electrically insulating housing, and the mounting ends extend out of the mounting abutment surface of the electrically insulating housing.

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