High-speed connector and terminal module and shielding sheet thereof

Abstract

The invention relates to the technical field of connectors, in particular to a high-speed connector and a terminal module and a shielding sheet thereof. The terminal module of the high-speed connector comprises an insulator and differential pairs fixed in the insulator, a shielding sheet is installed on at least one of two side portions in the thickness direction of the insulator, the shielding sheet on at least one side comprises a main sheet body and a shielding wall protruding towards the side where the differential pairs are located relative to the main sheet body, and the shielding wall is of a conductive structure. The insulator is provided with an avoiding groove which is used for avoiding the position of the shielding wall so that the shielding wall can extend between two adjacent differential pairs, the shielding wall extends in the direction of the signal terminals of the differential pairs so as to shield between the two adjacent differential pairs, and the shielding wall extends in the direction of the signal terminals of the differential pairs so that shielding can be achieved between the two adjacent differential pairs. The shielding effect is improved, and the transmission rate of the connector is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly relates to a high-speed connector, a terminal module thereof, and a shielding sheet. Background Art

[0002] In modern data communication transmission systems, the transmission rate is getting higher and higher. High-speed interconnect systems are widely used in communication networks and data exchange systems. As the core bridge for data communication, the performance requirements for high-speed backplane connectors are getting higher and higher, and connectors are continuously developing in the direction of miniaturization, high density, and high speed.

[0003] Existing high-speed connectors mainly consist of several terminal modules and components such as an insulating housing. Each terminal module is installed in the insulating housing. The terminal module is the core link transmission component. The basic structure of the terminal module can be referred to a transmission structure for a differential connector assembly disclosed in the Chinese patent application with the application publication number CN116315900A. This transmission structure is the terminal module, which includes a first signal lead module, a second signal lead module, a first holding frame, and a second holding frame. The signal lead module is installed on the corresponding holding frame. The first holding frame and the second holding frame are buckled with each other. The first signal lead module and the second signal lead module are arranged in pairs in the thickness direction of the transmission structure to form a differential pair for transmitting differential signals. The two signal lead modules in a differential pair are wide-side coupled. The transmission structure has at least two differential transmission paths. The pair of signal lead modules in each differential transmission path has the same electrical transmission distance, which is beneficial to improving the differential signal transmission quality. This transmission structure also includes a first shielding module and a second shielding module. The first shielding module and the second shielding module are plate-shaped structures. The shielding modules distributed on the opposite sides of the transmission structure realize the shielding function for the transmission structure. Among them, the shielding module is the shielding sheet of the terminal module. The first holding frame and the second holding frame constitute the insulator of the terminal module. The transmission leads of the signal lead module constitute the signal terminals of the differential pair. The signal terminals are routing terminals, and the routing direction of the routing terminals is their extension direction.

[0004] The above-mentioned terminal modules are respectively provided with shielding sheets on both sides of the insulator thickness direction. The shielding sheets on both sides shield on both sides of the same row of differential pairs, but there is no shielding between the differential pairs in the same row, which will affect the signal transmission of the differential pairs. The shielding effect is an important factor affecting the differential signal transmission rate. With the upgrade of the transmission rate, the requirements for the shielding effect are also increased. The current shielding structure of the terminal module can no longer meet the performance requirements of the new generation of connector products. Summary of the Invention

[0005] The object of the present invention is to provide a terminal module for a high-speed connector, so as to solve the problem that the current connector affects the upgrade of the transmission rate of the connector due to the poor shielding effect of the shielding structure of its terminal module; the object of the present invention is also to provide a high-speed connector and its shielding sheet to solve the above problems.

[0006] The technical solution of the terminal module of the high-speed connector of the present invention is as follows: A terminal module for a high-speed connector, the terminal module includes an insulator and each differential pair fixed in the insulator. At least one side of the two side portions in the thickness direction of the insulator is provided with a shielding sheet. At least one shielding sheet includes a main sheet body and a shielding wall protruding toward the side where the differential pair is located relative to the main sheet body. The shielding wall is a conductive structure. The insulator is provided with an avoidance groove for the shielding wall to extend between adjacent differential pairs. The shielding wall extends along the direction of the signal terminals of the differential pair to perform shielding between adjacent differential pairs.

[0007] Beneficial effects: The present invention is improved on the basis of the terminal module of the high-speed connector in the prior art. By providing a shielding wall extending between two differential pairs on the shielding sheet to form shielding between adjacent differential pairs, the shielding sheet is installed on the insulator. The main sheet body of the shielding sheet can shield each differential pair in the insulator on the side of the insulator. The shielding wall protruding relative to the main sheet body of the shielding sheet extends between adjacent differential pairs by using the avoidance groove of the insulator. The shielding wall extends along the direction of the signal terminals of the differential pair, so as to achieve shielding between adjacent differential pairs, improve the shielding effect, and is beneficial to improving the transmission rate of the connector.

[0008] Further, shielding sheets are installed on both side portions in the thickness direction of the insulator, and the shielding walls of the corresponding shielding sheets are conductively connected to the other shielding sheet.

[0009] Further, both shielding sheets are shielding sheets with shielding walls. The shielding wall has an inner side surface facing away from the main sheet body of the shielding sheet where it is located. The inner side surfaces of the shielding walls of the two shielding sheets are butt-jointed and conductively contacted.

[0010] Further, a plugging convex portion is provided on the inner side surface of the shielding wall of one of the shielding sheets, and a groove for the plugging convex portion to be adaptively inserted into is provided on the inner side surface of the shielding wall of the other shielding sheet.

[0011] Further, an interference fit convex portion that is in interference fit with the side surface of the plugging convex portion is provided in the groove.

[0012] Furthermore, the terminal module includes two module units that are fitted to each other. Each module unit includes an insulating unit body and signal terminals fixed in the insulating unit body. The insulating unit bodies of the two module units together form the insulator of the terminal module. The signal terminals of the two module units are paired to form a differential pair. The main sheet bodies of the two shielding sheets are respectively arranged on the opposite sides of the two insulating unit bodies, and the inner side surface of the shielding wall of the shielding sheet is flush with the inner side surface of the corresponding insulating unit body.

[0013] Furthermore, each shielding wall includes at least two wall bodies arranged at intervals along its extending direction. A break is formed at the interval between two adjacent wall bodies, and the insulator has a part located within the break.

[0014] Furthermore, the shielding wall includes a plastic matrix injection-molded on the main sheet body of the shielding sheet and a metal layer attached to the plastic matrix.

[0015] Furthermore, the shielding wall is fitted and installed into the avoidance groove.

[0016] The technical solution of the shielding sheet of the high-speed connector of the present invention is as follows: A shielding sheet of a high-speed connector, which is used to be installed on the insulator of the terminal module of the high-speed connector. The shielding sheet includes a main sheet body, and the shielding sheet includes a shielding wall protruding relative to the main sheet body. The shielding wall is a conductive structure and extends along the running direction of the signal terminals of the corresponding differential pairs of the terminal module. When the shielding sheet is in use, the shielding wall extends between two adjacent differential pairs to perform shielding between the two adjacent differential pairs.

[0017] Beneficial effects: The present invention is an improvement on the basis of the shielding sheet of the terminal module of the high-speed connector in the prior art. By providing a shielding wall that extends between two differential pairs on the shielding sheet to form shielding between two adjacent differential pairs, the shielding sheet is installed on the insulator. The main sheet body of the shielding sheet can shield each differential pair in the insulator on the side of the insulator. The shielding wall protruding relative to the main sheet body of the shielding sheet extends between two adjacent differential pairs by using the avoidance groove of the insulator. The shielding wall extends along the running direction of the signal terminals of the differential pair, so as to achieve shielding between two adjacent differential pairs, improve the shielding effect, and is beneficial to improving the transmission rate of the connector.

[0018] The technical solution of the high-speed connector of the present invention is as follows: A high-speed connector includes a connector housing and various terminal modules installed in the connector housing. The terminal module includes an insulator and various differential pairs fixed in the insulator. At least one side of the two side portions in the thickness direction of the insulator is provided with a shielding sheet. At least one shielding sheet includes a main sheet body and a shielding wall protruding toward the side where the differential pair is located relative to the main sheet body. The shielding wall is a conductive structure. The insulator is provided with an avoidance groove for the shielding wall to extend between adjacent two differential pairs to avoid the shielding wall. The shielding wall extends along the direction of the signal terminals of the differential pair to perform shielding between adjacent two differential pairs.

[0019] Beneficial effects: The present invention is improved on the basis of the high-speed connector in the prior art. By providing a shielding wall extending between two differential pairs on the shielding sheet of the terminal module to form shielding between adjacent two differential pairs, the shielding sheet is installed on the insulator. The main sheet body of the shielding sheet can shield various differential pairs in the insulator on the side of the insulator. The shielding wall protruding relative to the main sheet body of the shielding sheet extends between adjacent two differential pairs by using the avoidance groove of the insulator. The shielding wall extends along the direction of the signal terminals of the differential pair, so as to achieve shielding between adjacent two differential pairs, improve the shielding effect, and is beneficial to improving the transmission rate of the connector.

[0020] Further, shielding sheets are installed on both side portions in the thickness direction of the insulator, and the shielding walls of the corresponding shielding sheets are conductively connected to the other shielding sheet.

[0021] Further, both shielding sheets are shielding sheets with shielding walls. The shielding wall has an inner side face facing away from the main sheet body of the shielding sheet where it is located. The inner side faces of the shielding walls of the two shielding sheets are butted and conductively contacted.

[0022] Further, a plugging convex portion is provided on the inner side face of the shielding wall of one of the shielding sheets, and a groove for the plugging convex portion to be fitted into is provided on the inner side face of the shielding wall of the other shielding sheet.

[0023] Further, an interference fit convex portion that is in interference fit with the side face of the plugging convex portion is provided in the groove.

[0024] Further, the terminal module includes two module units that are opposed to each other. The module unit includes an insulating unit body and signal terminals fixed in the insulating unit body. The insulating unit bodies of the two module units together form the insulator of the terminal module. The signal terminals of the two module units are paired to form a differential pair. The main sheet bodies of the two shielding sheets are respectively arranged on the opposite sides of the two insulating unit bodies, and the inner side face of the shielding wall of the shielding sheet is flush with the inner side face of the corresponding insulating unit body.

[0025] Further, each shielding wall includes at least two wall bodies arranged at intervals along its extending direction. A break is formed at the interval between adjacent two wall bodies, and the insulator has a part located in the break.

[0026] Furthermore, the shielding wall includes a plastic matrix injection-molded on the main body of the shielding sheet and a metal layer attached to the plastic matrix.

[0027] Furthermore, the shielding wall is fitted and installed into the avoidance groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. is a schematic structural diagram of an embodiment of a terminal module of a high-speed connector according to the present invention; Figure 2 is Figure 1 a front structural diagram of the first shielding sheet in; Figure 3 is Figure 1 a back structural diagram of the first shielding sheet in; Figure 4 is Figure 1 a back structural diagram of the second shielding sheet in; Figure 5 is Figure 1 a cross-sectional structural diagram of the terminal module in; Figure 6 is Figure 5 a schematic diagram of the mating structure of the insertion protrusion of the first shielding wall and the groove of the second shielding wall in; Figure 7 is Figure 1 a schematic diagram of the first module unit in; Figure 8 is Figure 1 a schematic diagram of the installation structure of the first module unit and the first shielding sheet in.

[0029] In the figure: 11, the first module unit; 12, the second module unit; 13, the signal terminal; 14, the insulating unit body; 15, the avoidance slot; 16, the differential pair; 21, the first shielding sheet; 211, the first main body; 212, the first shielding wall; 213, the insertion protrusion; 22, the second shielding sheet; 221, the second main body; 222, the second shielding wall; 223, the groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The basic concept of the terminal module of the high-speed connector of the present invention is to form shielding between adjacent differential pairs by providing a shielding wall on the shielding sheet that extends between the two differential pairs, improve the shielding effect, and thus can improve the transmission rate of the connector.

[0031] The following specifically describes the present invention with reference to specific embodiments.

[0032] An embodiment of the terminal module of the high-speed connector of the present invention: As Figure 1 , Figure 2 , Figure 3 ,Figure 4 , Figure 5 As shown in Figure 5 , the terminal module of the high-speed connector includes a first module unit 11, a second module unit 12, a first shielding sheet 21, and a second shielding sheet 22. The first module unit 11 and the second module unit 12 are mutually aligned to form the module body of the terminal module. The module body includes an insulator and each differential pair 16 fixed in the insulator. There are multiple differential pairs 16, and each differential pair 16 is arranged side by side. The differential pair 16 includes two signal terminals 13 arranged in pairs. The signal terminal 13 is a trace terminal, and its trace direction is the extension direction of its length. The first shielding sheet 21 and the second shielding sheet 22 are the shielding sheets of the terminal module. The shielding sheets are installed on the side of the insulator, and the corresponding shielding sheet can play a shielding role on one side of each differential pair 16.

[0033] In order to improve the shielding effect to meet the transmission requirements of higher speeds, a shielding structure is provided between the differential pairs 16 of the terminal module. Specifically, the shielding sheet includes a main sheet body and a shielding wall protruding toward the side where the differential pair 16 is located relative to the main sheet body. The shielding wall is a conductive structure and extends along the trace of the signal terminal 13 of the differential pair 16. The insulator is provided with an avoidance groove for the shielding wall to extend between adjacent two differential pairs 16. In this way, the main sheet body of the shielding sheet can shield each differential pair 16 in the insulator on the side of the insulator, and the shielding wall of the shielding sheet extends between adjacent two differential pairs 16 to achieve shielding between adjacent two differential pairs 16, improving the shielding effect and being beneficial to improving the transmission rate of the connector.

[0034] The first shielding sheet 21 and the second shielding sheet 22 are respectively arranged on both side parts in the thickness direction of the insulator. Both the first shielding sheet 21 and the second shielding sheet 22 are shielding sheets with shielding walls. The main sheet body and the shielding wall of the first shielding sheet 21 are the first main sheet body 211 and the first shielding wall 212 respectively. The main sheet body and the shielding wall of the second shielding sheet 22 are the second main sheet body 221 and the second shielding wall 222 respectively. The first main sheet body 211 and the second main sheet body 221 are respectively located on both sides in the thickness direction of the insulator. The shielding wall protrudes inward. The inner space, that is, the space between the first main sheet body 211 and the second main sheet body 221, is also the space where the insulator and the differential pair 16 are located. The shielding wall of one shielding sheet is conductively connected to the other shielding sheet. Specifically, the first shielding wall 212 of the first shielding sheet 21 is conductively connected to the second shielding wall 222 of the second shielding sheet 22, making the two side shielding sheets grounded and improving the shielding effect. In other embodiments, the two side shielding sheets may not be in conductive contact.

[0035] In this embodiment, shielding sheets are installed on both side portions in the thickness direction of the insulator of the terminal module, which is beneficial to improving the shielding effect. In other embodiments, according to requirements, shielding sheets may be provided only on one side portion in the thickness direction of the insulator, and shielding on the other side is achieved by relying on the shielding sheet of an adjacent other terminal module. In this embodiment, both the first shielding sheet 21 and the second shielding sheet 22 are shielding sheets with shielding walls, which facilitates reliable contact between the two shielding sheets on both sides. In other embodiments, a shielding wall may be provided only on one of the shielding sheets, and no shielding wall is provided on the other shielding sheet. At this time, the protruding height of the shielding wall is relatively high to conductively contact the inner side surface of the other shielding sheet.

[0036] The first shielding wall 212 of the first shielding sheet 21 and the second shielding wall 222 of the second shielding sheet 22 correspond to each other one by one and are opposite to each other in the thickness direction of the insulator. The shielding walls extend into the insulator. In this embodiment, the cross-sectional shape of the shielding wall perpendicular to its extending direction is rectangular. In other embodiments, according to requirements, it may also be set to other shapes, such as trapezoidal. The shielding walls protrude inwards, and the top surface in the protruding direction is its inner side surface. The bottom in the protruding direction is connected to the main sheet body of the shielding sheet. The inner side surface of the shielding wall faces away from the main sheet body of the shielding sheet. The inner side surface of the first shielding wall 212 of the first shielding sheet 21 is in butt-joint conductive contact with the inner side surface of the second shielding wall 222 of the second shielding sheet 22. After the two shielding sheets on both sides are installed, the inner side surfaces of the two shielding walls are in contact with each other, which can better separate two adjacent differential pairs 16, reduce crosstalk, and improve the shielding effect. In other embodiments, the shielding walls of the two shielding sheets may also be arranged staggeredly, and conductive contact is formed by using the side surfaces in the wall thickness direction of the shielding walls of the two shielding sheets. At this time, the protruding height of the shielding wall is higher.

[0037] The inner side surface of the first shielding wall 212 of the first shielding sheet 21 is provided with a plug-in convex portion 213, and the inner side surface of the second shielding wall 222 of the second shielding sheet 22 is provided with a groove 223 for the plug-in convex portion 213 to be fitted into. The groove 223 penetrates along the wall thickness direction of the shielding wall. The side surface of the plug-in convex portion 213 is flush with the side surface in the wall thickness direction of the shielding wall. After the shielding sheet is installed, the first main sheet body 211 and the second main sheet body 221 are abutted against the corresponding side surfaces of the insulator, and the inner side surfaces of the two shielding walls are in contact. The plug-in convex portion 213 is snapped into the groove 223, which can enhance the reliability of conductive contact and ensure the positions of the two shielding sheets on both sides. In other embodiments, the plug-in convex portion and the groove may not be provided, and the inner side surfaces of the shielding walls of the two shielding sheets are in flat contact.

[0038] The groove 223 is provided with an interference fit convex portion that is in interference fit with the side surface of the plug-in convex portion 213. The opposite inner walls of the groove 223 in the extending direction of the shielding wall are arc-shaped walls to form the interference fit convex portion, in combination Figure 6, after the insertion convex part 213 is snapped in, the opposite side surfaces of the insertion convex part 213 along the extending direction of the shielding wall are in interference fit with the interference fit convex parts on both sides of the groove 223, ensuring reliable contact and enhancing the stability of the shielding sheet. In other embodiments, the interference fit convex parts may not be provided in the groove, and the opposite inner wall surfaces of the groove are flat surfaces. The dimension of the insertion convex part along the extending direction of the shielding wall is slightly larger than the groove width of the groove to form an interference fit.

[0039] The main sheet body of the shielding sheet is a flat metal sheet. The shielding wall includes a plastic matrix injection-molded on the main sheet body of the shielding sheet and a metal layer attached to the plastic matrix. The plastic matrix is fixed by the combination of the inner side surface of the metal sheet and the plastic after injection molding. The metal layer is formed by electroplating on the plastic matrix, and the metal layer is connected to the metal sheet to realize the conductive structure of the shielding wall. In this embodiment, the wall thickness of the shielding wall is greater than the thickness of the main sheet body to ensure the strength and formability of the shielding wall. In other embodiments, the shielding wall can also be formed by conductive plastic, and the conductive plastic is integrally fixed to the metal sheet by injection molding. To increase the bonding strength between the plastic matrix and the metal layer of the shielding wall, bulges or pits can be stamped on the metal sheet to increase the bonding area with the plastic. In other embodiments, when the size is sufficient, bent sheets that bend inward can also be stamped and bent on the metal sheet to form the shielding wall using the bent sheets.

[0040] Since the terminal module has multiple differential pairs 16, a shielding wall is provided between every two differential pairs 16. Multiple shielding walls are provided on the shielding sheet. The first shielding sheet 21 and the second shielding sheet 22 surround and shield the differential pairs 16 through the shielding walls. The adjacent two shielding walls of the first shielding sheet 21 and the corresponding adjacent two shielding walls of the second shielding sheet 22 enclose a cylindrical shielding cavity extending along the direction of the differential pair 16, and the differential pair 16 is located in the corresponding cylindrical shielding cavity to achieve surrounding shielding. For the differential pair 16 on the outermost side in the side-by-side direction among the differential pairs 16, a shielding wall can be provided or not provided on the side away from its adjacent differential pair 16 according to the situation.

[0041] Each shielding wall includes at least two sections of wall bodies arranged at intervals along its extending direction. Since the connector in this embodiment is a bent connector and its signal terminals 13 are bent terminals, the lengths of the signal terminals 13 of different differential pairs 16 are different. Correspondingly, the lengths of the shielding walls on the same shielding sheet are different. The shorter shielding wall can be provided with only two sections of wall bodies. Correspondingly, for reliable cooperation, corresponding grooves 223 or plugging convex parts 213 can be respectively provided on the wall bodies of different sections. A break is formed at the interval between two adjacent sections of each shielding wall. The insulator has a part located in the break, and the insulator forms a connecting material at the break to ensure the strength of the insulator and enable the shielding wall to have a sufficient extending length. The two ends of the shielding wall can respectively extend to positions as close as possible to both ends of the signal terminal 13, so as to form an enclosing shield on the entire routing path of the signal terminal 13 as much as possible. In other embodiments, the break can also be not provided, and in this case, the overall length of the shielding wall can be shorter.

[0042] The first module unit 11 and the second module unit 12 constitute two mutually mating module units of the terminal module. The structures of the two module units are basically the same. Combining Figure 7 with the shown first module unit 11, the module unit includes an insulating unit body 14 and signal terminals 13 fixed in the insulating unit body 14. The insulating unit bodies 14 of the two module units jointly constitute the insulator of the terminal module. The signal terminals 13 of the two module units are paired to form a differential pair 16. The main sheet bodies of the two shielding sheets are respectively arranged on the opposite sides of the two insulating unit bodies 14. One of the two signal terminals 13 of the differential pair 16 is fixed in the insulating unit body 14 of the first module unit 11, and the other is fixed in the insulating unit body 14 of the second module unit 12. The signal terminals 13 can be fixed in the insulating unit body 14 by integral injection molding.

[0043] In this embodiment, the two signal terminals 13 of the differential pair 16 adopt a wide-side coupling form, the connector is not provided with a ground terminal, the sides of the two signal terminals 13 of the differential pair 16 in the thickness direction are opposite to each other, the interval direction of the two signal terminals 13 of the differential pair 16 is perpendicular to the juxtaposition direction of each differential pair 16, the two signal terminals 13 of the differential pair 16 are arranged side by side in the insulator thickness direction, and the insulator thickness direction is the arrangement direction of each terminal module of the connector. The two ends of the signal terminal 13 are an insertion end and a crimping end respectively. The insertion end is provided with a spring piece structure for cooperating with the pin of the mating connector, and the crimping end is provided with a fish-eye structure for crimping and fixing on the printed circuit board. The orientations of the insertion end and the fish-eye end are perpendicular to each other to adapt to the structure of the angled connector. The thickness direction of the insulator of the terminal module is perpendicular to the orientations of the insertion end and the fish-eye end of the signal terminal 13. The insertion end and the fish-eye end of the signal terminal 13 respectively extend out of the insulating unit body 14. The main body of the shielding sheet covers one side of the insulator. One end of the shielding sheet close to the crimping end of the signal terminal 13 is provided with a fish-eye structure for conducting with the ground line on the printed circuit board, and one end of the shielding sheet close to the insertion end of the signal terminal 13 is provided with a shielding connection part for conducting with the shielding structure of the mating connector. In other embodiments, the two signal terminals of the differential pair can also adopt a narrow-side coupling form, the sides of the wiring main bodies of the signal terminals in the width direction are opposite to each other, the signal terminals of the same terminal module are arranged in a row, and the insulator can adopt an integral structure, and all the signal terminals are integrally fixed in the same insulator.

[0044] Combined with Figure 8 Regarding the installation structure of the first shielding sheet 21 and the first module unit 11 shown, after the shielding sheet is installed, the inner side surface of the shielding wall is flush with the inner side surface of the insulating unit body 14. By using the thickness of the insulating unit body 14 to set the protruding height of the shielding wall, it is convenient for molding and ensures the strength of the shielding wall. In other embodiments, the inner side surface of the shielding wall and the inner side surface of the insulating unit body may not be flush, and the protruding height of the shielding wall of one shielding sheet is relatively low while the protruding height of the shielding wall of the other shielding sheet is relatively low.

[0045] The insulating unit 14 is provided with an avoidance groove 15, and the avoidance groove 15 constitutes an avoidance groove for avoiding the shielding wall, so that the shielding wall extends between two adjacent differential pairs 16. The avoidance groove 15 corresponds to each section of the shielding wall one by one, and each shielding wall corresponds to an avoidance groove 15. The part between the avoidance grooves 15 cooperating with the same shielding wall is embedded into the break formed between two adjacent sections of the wall, so as to prevent the avoidance groove 15 from dividing the insulating unit 14 into independent parts and ensure the moldability of the insulator. The avoidance groove 15 is adapted to the corresponding section of the shielding wall, and the shielding wall is fitted and installed into the avoidance groove, which can fix the shielding sheet on the insulating unit 14, with a simple structure and stable installation. In other embodiments, the avoidance groove can also be in clearance fit with the shielding wall. At this time, heat riveting posts can be provided on the insulating unit, and riveting post perforations can be provided on the main sheet body of the shielding sheet. The heat riveting posts pass through the riveting post perforations and the shielding sheet is fixed to the insulating unit by heat riveting. In addition, for the fixation of the insulating units 14 on both sides, fixing posts can be provided on one of the insulating units 14, and fixing holes can be provided on the other. After the two module units are buckled together, the fixing posts are press-fitted into the fixing holes to form a fixation.

[0046] The entire shielding sheet has electrical conductivity. After the two shielding sheets are combined, electrical shielding is achieved for the entire link of the routing terminals, crosstalk is improved, SI performance is enhanced, sleeve-type shielding is performed on the routing terminals, and the rate upgrade of the connector product is satisfied.

[0047] Embodiment of the shielding sheet of the high-speed connector of the present invention: The shielding sheet of the high-speed connector in this embodiment has the same structure as the first shielding sheet or the second shielding sheet of the terminal module of the high-speed connector in the above embodiment, and will not be described in detail here.

[0048] Embodiment of the high-speed connector of the present invention: A high-speed connector includes an insulating housing and various terminal modules installed in the insulating housing. The insulating housing is the connector housing. The terminal module in this embodiment has the same structure as the terminal module of the high-speed connector in the above embodiment, and will not be described in detail here.

[0049] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still make modifications to the technical solutions recorded in the foregoing embodiments without creative efforts, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A terminal module for a high-speed connector, the terminal module comprising an insulator and differential pairs (16) fixed in the insulator, at least one of the two sides in the thickness direction of the insulator being provided with a shielding sheet, wherein: At least one side of the shielding sheet comprises a main sheet body and a shielding wall protruding relative to the main sheet body toward the side where the differential pair is located. The shielding wall is a conductive structure. The insulator is provided with a shielding groove (15) for avoiding the shielding wall so that the shielding wall can extend between two adjacent differential pairs (16). The shielding wall extends along the direction of the signal terminal (13) of the differential pair (16) to shield between the two adjacent differential pairs.

2. The terminal module of the high-speed connector according to claim 1, characterized in that: Shielding sheets are installed on both sides of the insulator in the thickness direction, and the shielding wall of the corresponding shielding sheet is conductively connected to the shielding sheet on the other side.

3. The terminal module of the high-speed connector according to claim 2, characterized in that: The shielding sheets on both sides are shielding sheets with shielding walls, the shielding walls have inner sides facing away from the main sheet body of the shielding sheets, and the inner sides of the shielding walls of the shielding sheets on both sides are butted and conductively contacted.

4. The terminal module of the high-speed connector according to claim 3, characterized in that: An inserting protrusion (213) is provided on the inner side surface of the shielding wall of one side shielding sheet, and a groove (223) for the inserting protrusion (213) to fit into is provided on the inner side surface of the shielding wall of the other side shielding sheet.

5. The terminal module of the high-speed connector according to claim 4, characterized in that: An interference fit convex portion which is interference fit with the side surface of the plugging convex portion (213) is provided in the groove (223).

6. The terminal module of the high-speed connector according to claim 3, 4 or 5, characterized in that: The terminal module comprises two module units matched to each other, the module units comprising an insulating unit body (14) and a signal terminal (13) fixed in the insulating unit body (14), the insulating unit bodies (14) of the two module units together constitute an insulator of the terminal module, the signal terminals (13) of the two module units are paired to form a differential pair (16), the main sheet bodies of the two shielding sheets are respectively arranged on opposite sides of the two insulating unit bodies (14), and the inner side surface of the shielding wall of the shielding sheet is flush with the inner side surface of the corresponding insulating unit body (14).

7. The terminal module of the high-speed connector according to any one of claims 1 to 5, characterized in that: Each shielding wall comprises at least two wall sections spaced apart along its extending direction, a break is formed at the interval between two adjacent wall sections, and the insulator has a portion located in the break.

8. The terminal module of the high-speed connector according to any one of claims 1 to 5, characterized in that: The shielding wall comprises a plastic matrix which is injection-molded on a main sheet body of the shielding sheet and a metal layer which is attached to the plastic matrix.

9. The terminal module of the high-speed connector according to any one of claims 1 to 5, characterized in that: The shielding wall is installed in the avoidance groove.

10. A shielding sheet for a high-speed connector, the shielding sheet being used to be mounted on an insulator of a terminal module of the high-speed connector, the shielding sheet comprising a main sheet body, wherein: The shielding sheet comprises a shielding wall protruding relative to the main sheet body, the shielding wall being a conductive structure, the shielding wall extending along the direction of the signal terminals (13) of the corresponding differential pairs (16) of the terminal module, and when the shielding sheet is in use, the shielding wall extends between two adjacent differential pairs (16) to provide shielding between the two adjacent differential pairs (16).

11. A high-speed connector, comprising a connector housing and terminal modules installed in the connector housing, characterized in that: The terminal module is a terminal module of the high-speed connector as described in any one of claims 1 to 9.

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