Terminal module and connector using the terminal module

Abstract

The present invention discloses a terminal module and a connector using the terminal module, wherein the terminal module comprises a shielding sheet and a primary injection molding body, wherein the shielding sheet is fixed to one side of the primary injection molding body, wherein the shielding sheet comprises a sheet-like main body and an extension area arranged at the front end of the sheet-like main body, wherein the extension area is provided with a bending structure protruding toward the primary injection molding body, wherein the bending structure covers an area on the primary injection molding body near the root of the terminal contact, and wherein the bending structure is provided with a position avoidance hole for avoiding contact with the male end pin of the connector; after the terminal module is assembled, the groove of the bending structure accommodates the plastic bulging part near the root of the terminal contact of the adjacent terminal module. The present invention is compatible with the plastic deformation when the male and female ends of the connector are plugged in, and is conducive to the side-by-side use of multiple terminal modules.

Description

Technical Field

[0001] The invention belongs to the technical field of connectors, and in particular relates to a terminal module and a connector using the terminal module. Background Art

[0002] In modern data communication transmission systems, the transmission rate is getting higher and higher. High-speed interconnection systems are widely used in communication networks and data exchange systems. As the core bridge of data communication, high-speed backplane connectors have huge market demand and increasingly fierce competition. The requirements for product stability and cost are getting higher and higher. Various forms of high-speed backplane connectors should adopt low-cost solutions as much as possible while meeting SI performance requirements and mechanical performance requirements to meet the increasingly fierce market competition.

[0003] Existing high-speed backplane connector terminal modules such as Figures 1 to 3 As shown, it mainly includes a terminal 1001, a shielding sheet 1003 and an injection molded part. The wiring terminal is stamped and formed, and then an injection molding is performed after forming to form a primary injection molded body 1002. The shielding sheet 1003 is combined with the primary injection molded body 1002, and the primary injection molded body 1002 and the shielding sheet 1003 are combined into a whole through a secondary injection molded body 1004, so as to obtain a terminal module.

[0004] In the prior art, the shielding sheet 1003 is pressed onto the primary injection molded body 1002 through a secondary injection molding process, and the secondary injection molded body 1002 plays the role of fixing the shielding sheet 1003 and increasing the strength of the terminal module. Since the shielding sheet 1003 adopts the third contact 1005 to penetrate into the mating area of ​​the mating end to improve crosstalk, the third contact 1005 is unstable, which can easily lead to deterioration of the high-speed performance of the product; the shielding sheet adopts a shell extraction process, which is difficult to process, resulting in poor flatness of the entire terminal module, thereby affecting the position of the terminal spring sheet; the secondary injection molding process is adopted, and the production is complicated, resulting in high product costs.

[0005] In addition, for connectors equipped with multiple terminal modules, the terminal modules are assembled into the insulating housing to form a finished product. The male and female ends of the connectors are plugged into each other, and the pins of the male end of the connector lift the terminal contacts of the female end of the connector, causing the terminal contacts to deform, thereby causing the plastic near the root of the terminal contacts to swell, affecting the flatness of the terminal module surface, and further affecting the side-by-side installation of the terminal modules. At the same time, the insulating housing is affected by the bulging plastic, resulting in poor surface flatness, further affecting the side-by-side installation of multiple connectors. The above situation directly leads to a decline in product performance.

[0006] In summary, the existing technical solutions cannot meet the increasingly fierce market competition in terms of product cost, product high-speed performance stability and product processing stability. Summary of the invention

[0007] The object of the present invention is to provide a terminal module, which is provided with a bending structure, which can be compatible with the plastic deformation when the male end and the female end of the connector are plugged in, and is conducive to the side-by-side use of multiple terminal modules.

[0008] The present application also provides a connector using the terminal module, which can solve the problem that the outermost insulating shell of a large connector with multiple terminal modules is prone to swelling.

[0009] To achieve the above object, the technical solution adopted by the present invention is:

[0010] A terminal module, comprising:

[0011] A one-shot injection molded body, which is formed by integrally injection molding of the terminal and the injection molded part;

[0012] The shielding sheet is fixed to one side of the primary injection molded body, and the shielding sheet includes a sheet-like main body and an extension area arranged at the front end of the sheet-like main body.

[0013] The extension area is provided with a bending structure protruding toward the primary injection molded body, the bending structure covers the area on the primary injection molded body near the root of the terminal contact, and the bending structure is provided with a avoidance hole for avoiding contact between the bending structure and the male end pin of the connector;

[0014] After the terminal modules are assembled, the grooves of the bent structure accommodate the bulging plastic parts near the roots of the terminal contacts of the adjacent terminal modules.

[0015] The beneficial effect is that after the terminal module is assembled, the terminal contact is deformed due to the plugging of the male and female ends of the connector, which in turn causes the plastic near the root of the terminal contact to swell, affecting the side-by-side installation of the terminal module. The present application can accommodate the swollen plastic parts of adjacent terminal modules by setting a bending structure at the corresponding position of the shielding sheet. At the same time, in order to prevent the male end pin from colliding with the bending structure of the female end shielding sheet when the male and female ends are plugged in, the corresponding area of ​​the shielding sheet bending structure is opened. This structure is particularly suitable for the side-by-side use of large terminal modules with more differential pairs.

[0016] Furthermore, the extension area extends to the front end of the terminal contact to provide barrier protection for the terminal contact, and a bulge for contacting the ground terminal contact is provided on the extension area.

[0017] The beneficial effect is that the front end extension area of ​​the shielding sheet can shield the signals between the terminal contacts, and the extension area extends all the way to the front end of the terminal contacts, achieving full coverage of the terminal contacts, forming a complete shielding structure, which helps to enhance the shielding effect.

[0018] Furthermore, a notch is provided at a position at the front end of the extension area corresponding to the signal terminal contact.

[0019] Furthermore, the notch extends from the front edge of the extension area toward the bending structure and is spaced apart from the bending structure.

[0020] The notch is in an M-shape, semicircular, elliptical or rectangular shape. A matching portion having a convex-concave matching shape of the notch is arranged at a position corresponding to the notch on the insulating shell, and the matching portion is gap-matched with the notch.

[0021] The beneficial effect is: in order to solve the problems of insufficient cavity space between the outermost plastic wall of the insulating shell and the front end of the shielding piece and poor plastic molding, a notch is opened at the front end of the shielding piece, and the notch forms a convex and concave fit with the insulating shell, which is convenient for improving the stability of the assembly of the shielding piece and the insulating shell, and at the same time increases the connection strength between the shielding piece and the insulating shell, ensuring that the spatial position of the shielding piece is constant, thereby improving the plug-in reliability of the connector plug-in end.

[0022] Furthermore, the extension area is welded to the sheet-like main body, or the extension area and the sheet-like main body are formed in one piece.

[0023] The beneficial effect is that: the shielding sheet is an integrated structure, the bending structure thereon is formed by stamping, or the shielding sheet is welded in two parts.

[0024] Furthermore, the shielding sheet is provided with a plurality of snap protrusions adapted to contact with the primary injection molded body and notches formed by processing the snap protrusions, the primary injection molded body is provided with a plurality of snap holes adapted to the snap protrusions and hot rivet studs adjacent to the snap holes corresponding to the notches, and the hot rivet studs are adapted to be riveted with the notches corresponding thereto.

[0025] The beneficial effect is: the snap points of the primary injection molded body and the shielding sheet are used as riveting points, the original notches of the shielding sheet also serve as hot rivet column perforations, and the shielding sheet and the primary injection molded body are fixed with hot rivets through the riveting points, thereby increasing the strength of the terminal module and avoiding the situation in which the shielding sheet and the plastic surface of the primary injection molded body are not sufficiently fitted during product crimping, which is easy to separate or be squeezed and deformed, and further enables the gap between the shielding sheet and the terminal to meet the technical requirements, thereby making the product performance more stable; at the same time, by adopting this riveting method, the notches on the shielding sheet can be sealed, and a layer of shielding sheet can provide better shielding effect, which helps to improve crosstalk and obtain good high-speed signal integrity; this solution effectively solves the problem of weakened strength and flatness of the terminal module after the secondary injection molding is cancelled, and the snap structure of the terminal module serves as both a signal transmission point and a mechanical support point, without the need to add additional riveting points, and is very suitable for terminals and shielding sheets with extremely limited space.

[0026] Furthermore, the buckle protrusions on the shielding sheet are arranged along the terminal alignment to form a plurality of buckle paths consistent with the terminal alignment, and a reinforcing rib is provided in an area on the primary injection molded body corresponding to the buckle path.

[0027] The beneficial effects are: the arrangement path of each group of buckle protrusions is consistent with the terminal routing, which helps the shielding sheet to transmit electromagnetic signals through the buckle protrusions, thereby improving the SI performance of the terminal module; at the same time, this layout method helps to ensure the consistency of the spacing between the terminal routing and the shielding sheet, while improving the overall mechanical properties of the terminal module and avoiding extrusion deformation. The reinforcement ribs provide a basis for the high stability of the thermal riveting column, further ensuring the crimping reliability of the terminal module.

[0028] Furthermore, the shielding sheet is provided with a perforation, and the primary injection molded body is provided with a riveting column corresponding to the perforation, and the riveting column is riveted with the perforation. Preferably, the perforation is provided on the buckle path.

[0029] The beneficial effect is that the shielding sheet buckle is fixed to the primary injection molded body by heat riveting, and additional perforations are opened in other places to fix the primary injection molded body by heat riveting. The combination of the two heat riveting forms is particularly effective for structural reinforcement of terminal modules with multiple differential pairs.

[0030] The present application also provides a connector, including an insulating housing and at least two terminal modules mounted on the insulating housing, wherein the terminal modules include:

[0031] A one-shot injection molded body, which is formed by integrally injection molding of the terminal and the injection molded part;

[0032] A shielding sheet is fixed to one side of the primary injection molded body, the shielding sheet comprises a sheet-like main body and an extension area arranged at the front end of the sheet-like main body, the extension area is provided with a concave-shaped bending structure protruding toward the primary injection molded body, the bending structure covers the area near the root of the terminal contact on the primary injection molded body, and the bending structure is provided with a avoidance hole for preventing it from contacting the male end pin of the connector;

[0033] After the terminal module is assembled, the bending structure can accommodate the plastic bulging part near the root of the terminal contact of the adjacent terminal module.

[0034] The beneficial effect is that the terminal module of the connector is provided with a bending structure, which is used to accommodate the plastic bulging part of the adjacent terminal module; at the same time, in order to prevent the male end pin from colliding with the female end shielding plate bending structure and affecting the insertion when the male end and the female end are plugged in, the corresponding area of ​​the shielding plate bending structure is designed with an opening.

[0035] Furthermore, the insulating shell includes a longitudinal portion for plugging with the terminal contact and a transverse portion arranged at both ends of the longitudinal portion. Support ribs are connected between the corresponding sides of the two transverse portions. After the terminal module is installed in the insulating shell, the support ribs cover the plastic bulging part of the outermost terminal module; a avoidance groove is opened on the side of the transverse portion away from the support rib. When multiple connectors are used side by side, the avoidance groove accommodates the support ribs of adjacent connectors.

[0036] The beneficial effects are: the insulating shell has corresponding avoidance grooves and supporting ribs, which are compatible with the plastic deformation when the male and female ends of the connector are plugged in, solve the problem of bulging of the outermost insulator of large wafer connectors, and are conducive to the side-by-side use of connectors. The shielding sheet of this connector adopts a full-cover terminal form, which can improve SI performance. The shielding sheet buckle is combined with the terminal to avoid secondary injection molding. The product has a simple structure, stable performance, relatively simple process, and relatively low cost, which is conducive to industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of a terminal module in the prior art;

[0038] Figure 2 for Figure 1 Exploded diagram of

[0039] Figure 3 It is a schematic diagram of the structure of a shielding sheet in the prior art;

[0040] Figure 4 It is a structural schematic diagram of a connector in the prior art;

[0041] Figure 5 This is a schematic diagram of the structure of the terminal module in Example 1 of the present application;

[0042] Figure 6 for Figure 5 Side view of

[0043] Figure 7 for Figure 6 The enlarged view of point A in the middle;

[0044] Figure 8 for Figure 5 Stereoscopic image of

[0045] Fig. 9 for Figure 5 A three-dimensional diagram of the middle shielding sheet;

[0046] Fig.10 for Fig. 9 A schematic diagram of the structure from another perspective;

[0047] Fig.11 for Fig. 9 Side view of

[0048] Fig.12 for Figure 5 Schematic diagram of the structure of the middle terminal;

[0049] Fig.13 for Figure 5 The structural diagram on the back;

[0050] Fig.14 This is a schematic diagram of the assembly of the terminal module in Example 1 of the present application;

[0051] Fig.15 for Fig.14 Schematic diagram of the completed assembly of the middle terminal module;

[0052] Fig.16 is a schematic diagram of the structure of the connector in Example 1;

[0053] Fig.17 for Fig.16 Schematic diagram of the decomposition of

[0054] Fig.18 for Fig.17 A schematic diagram of the structure of the insulating shell;

[0055] Fig.19 for Fig.18 A schematic diagram of the structure from another perspective;

[0056] Fig. 20 is a cross-sectional view of the connector mating area;

[0057] Fig.21 It is a schematic diagram of the structure of the connector plug-in area;

[0058] Fig. 22 for Fig.21 Enlarged view of point B in the middle.

[0059] 100. terminal module, 101. terminal, 102. primary injection molding body, 103. shielding sheet;

[0060] 1011. terminal routing, 10111. signal differential pair, 10112. ground terminal, 1012. fisheye, 1013. terminal contact, 10131. ground terminal contact, 10132. signal terminal contact;

[0061] 1021. plastic, 1022. reinforcing rib, 1023. buckling hole, 1024. hot riveting column, 1025. plastic bulging part;

[0062] 1031. extension area, 1032. bending structure, 10321. groove, 1033. avoidance hole, 1034. bulge, 1035. notch, 1036. through hole, 1037. buckle protrusion, 1038. notch, 1039. perforation;

[0063] 200. Connector female end, 201. Terminal module A, 202. Terminal module B, 203. Fixing plate, 204. Positioning plate, 205. Insulating housing, 2051. Support rib, 2052. Avoidance groove, 2053. Matching part, 2054. Swelling area;

[0064] 300. Connector male end, 301. Signal pin, 302. Ground pin. DETAILED DESCRIPTION

[0065] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0066] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0067] At the same time, it should be noted that, unless otherwise specified, "multiple" means two or more; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front end", "rear end", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Changes or adjustments in their relative relationships shall also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0068] Example 1

[0069] like Figures 5 to 22 As shown, this embodiment provides a connector, which includes a connector female end 200 and a connector male end 300 that are plugged into each other, and the part that is plugged into each other is the connector plugging end. This application defines the end facing the plugging end as the front end.

[0070] The female connector 200 includes an insulating housing 205 and at least two terminal modules 100 mounted on the insulating housing 205. The terminal modules 100 are arranged side by side along the thickness direction thereof. Fig.16 , Fig.17 The arrangement direction of the terminal module A 201 and the terminal module B 202 in the same connector. In the same connector, the terminal module A 201 and the terminal module B 202 have similar structures.

[0071] like Figures 5 to 15As shown, the terminal module 100 includes a terminal 101, an injection molded part and a shielding sheet 103. The terminal 101 and the injection molded part are integrally injection molded to form a primary injection molded body 102, and the shielding sheet 103 is fixed to one side of the primary injection molded body 102. The terminal 101 includes a terminal wiring 1011 and a fisheye 1012 at one end of the terminal wiring 1011 and a terminal contact 1013 at the other end. The terminal wiring 1011 passes through the primary injection molded body 102, the terminal contact 1013 extends from the front end of the primary injection molded body 102, and the fisheye 1012 extends from one side of the primary injection molded body 102.

[0072] like Figures 5 to 8 As shown, the shielding sheet 103 of the terminal module 100 includes a sheet-like main body, which is in the shape of a thin sheet and covers the terminal routing area on the primary injection molded body 102. An extension area 1031 is provided at the front end of the sheet-like main body. The extension area 1031 and the sheet-like main body of the shielding sheet 103 are located in the same plane. The extension area 1031 is provided with a bending structure 1032 protruding toward the primary injection molded body 102. The bending structure is concave in shape. The bending structure 1032 covers the area on the primary injection molded body 102 near the root of the terminal contact 1013.

[0073] like Fig. 9 As shown, the bending structure 1032 is provided with a avoiding hole 1033 for avoiding the bending structure 1032 from contacting the male pin of the connector; the avoiding hole 1033 can be designed according to the shape of the male pin of the connector. The male pin of the connector includes signal pins 301 and ground pins 302 that are alternately distributed. In this embodiment, the avoiding hole 1033 corresponding to the signal pin 301 is larger, and the avoiding hole 1033 corresponding to the ground pin 302 is smaller.

[0074] After the female connector 200 and the male connector 300 are assembled, the male connector pin and the terminal contact of the female connector 200 are plugged into each other, causing the terminal contact to deform under the force of the pin, thereby causing the plastic near the root of the terminal contact to swell, forming a plastic swelled area 1025 on the primary injection molded body 102. Figure 6 , Figure 7 As shown, the bending structure 1032 spans the root of the terminal contact 1013 and the front end area of ​​the plastic part. When multiple terminal modules 100 are assembled side by side, the groove 10321 of the bending structure 1032 can accommodate the plastic bulging part 1025 near the root of the terminal contact 1013 of the adjacent terminal module, thereby overcoming the defect that the terminal modules are difficult to assemble side by side due to plastic deformation.

[0075] In order to provide barrier protection for the terminal contact 1013, the extension area 1031 extends to the front end of the terminal contact 1013, that is, the front end of the extension area 1031 is substantially flush with the front end of the terminal contact. Figure 6 and Figure 7As shown. It should be noted that the extension area 1031 of the shielding sheet 103 covers the terminal contacts as much as possible to reduce the signal crosstalk between two adjacent groups of terminal modules, thereby achieving the barrier protection and improving the anti-interference performance. The extension area 1031 is provided with a bulge 1034 for contacting the ground terminal contact 10131 to increase the ground return path. Specifically, the bulge 1034 is located at the front end of the extension area 1031, and the bending structure 1032 is located behind the bulge 1034. As shown Fig. 9 , Fig.10 As shown, the bending structure 1032 is in the form of a groove 10321. The length direction of the groove 10321 is consistent with the arrangement direction of the plurality of terminal contacts 1013. The arrangement direction of the terminal contacts 1013 is defined as the first direction. The length of the groove 10321 is the same as the length of the shielding sheet 103 in the first direction. The avoidance hole 1033 is provided at the front of the groove 10321. A through hole 1036 for adjusting impedance is also provided at the rear of the groove 10321. The arrangement of the through hole 1036 belongs to the prior art and will not be described in detail.

[0076] A notch 1035 is formed between two adjacent bumps 1034 on the extension area 1031. Figure 8 and Fig. 9 As shown, the notch 1035 is M-shaped. Accordingly, a matching portion 2053 matching the shape of the notch 1035 is provided on the insulating housing 205 at a position corresponding to the notch 1035. The notch 1035 and the matching portion 2053 form a convex-concave matching structure, so that the matching portion 2053 and the notch 1035 are connected with each other in a gap, which is beneficial to the stability of the assembly of the shielding sheet and the insulating housing 205. Fig. 22 This structure facilitates the close fit between the front end of the shielding sheet 103 and the insulating housing 205, increases the connection strength between the shielding sheet 103 and the insulating housing 205, ensures the spatial position of the shielding sheet 103 is constant, and further improves the plug-in reliability of the connector plug-in end.

[0077] Furthermore, the extension area 1031 is integrally formed with the sheet-like main body, and the bending structure 1032 is formed by stamping. The provision of the extension area 1031 helps to form a complete shielding structure and enhance the shielding effect.

[0078] like Figures 8 to 10 As shown, the shielding sheet 103 is provided with a plurality of buckle structures for buckling with the primary injection molded body 102. The buckle structure is directly pressed on the sheet body, including a buckle protrusion 1037 perpendicular to the sheet body and a notch 1038 formed by processing the buckle protrusion 1037. In this embodiment, the buckle protrusion 1037 is a sheet-shaped claw bent toward the primary injection molded body 102. For the specific structure of the claw, see Fig.10 .

[0079] The primary injection molded body 102 is provided with a plurality of buckling holes 1023 matched with the buckling protrusions 1037. The shape of the buckling holes 1023 matches the claws. For the specific structure of the buckling holes 1023, see Fig.12 A heat rivet post 1024 is disposed adjacent to the snap-fit ​​hole 1023 and at a position corresponding to the notch 1038 on the shielding sheet. The heat rivet post 1024 passes through the notch 1038 opposite thereto to form a riveting point.

[0080] Specifically, the snap protrusion 1037 is interference-connected with the snap-fit ​​hole 1023, and after the snap protrusion 1037 is inserted into the snap-fit ​​hole 1023, the snap protrusion 1031 and the primary injection molded body 102 form an electrical connection for transmitting electromagnetic signals. The thermal rivet stud 1024 is a cylindrical or rectangular stud, and there is a certain distance between the rivet stud and the snap-fit ​​hole 1023. After the thermal rivet stud 1024 passes through the notch 1031 on the shielding sheet 103, a portion of the end of the thermal rivet stud 1024 is exposed, which facilitates the riveting and fixing of the shielding sheet 103 and the primary injection molded body 102 by stamping. For the specific structure of the thermal rivet stud 1024, see Figure 8 .

[0081] In the present application, the buckle points of the shielding sheet 103 and the primary injection molded body 102 are used as riveting points, and no additional riveting points are required. The buckle structure has both electromagnetic and mechanical properties, which increases the strength of the terminal module on the one hand, and blocks the gap on the shielding sheet on the other hand. This helps to improve the mechanical properties of the terminal module 100, improve crosstalk, and obtain good high-speed signal integrity.

[0082] Of course, for a terminal module with a larger volume, a riveting point may be provided in an area other than the buckle protrusion 1037 as appropriate. In this embodiment, the shielding sheet 103 is further provided with a through hole 1039, and the primary injection molded body 102 is provided with a riveting column corresponding to the through hole 1039, and the riveting column is riveted with the through hole 1039, see Figure 8 , Fig. 9 .

[0083] Furthermore, the buckle structure on the shielding sheet 103 is arranged along the terminal routing 1011 to form several groups of buckle paths consistent with the terminal routing 1011. In order to improve the SI performance and mechanical properties, the buckle structure must be set near the fisheye end and the bend of the buckle path. The spacing between two adjacent groups of buckle paths is 2 to 5 mm, and the buckle structures on the two adjacent groups of buckle paths are staggered. Correspondingly, the buckle hole 1023 and the hot riveting column 1024 on the primary injection molding body 102 are located in the area between two adjacent signal differential pairs. This layout method helps to improve high-speed signal transmission, improve the overall mechanical properties of the terminal module, avoid the shielding sheet from being squeezed and deformed during the assembly process, and further achieve the consistency of the spacing between the terminal routing and the shielding sheet, meeting the relevant technical requirements. Preferably, the riveting column and the perforation 1039 are arranged on the above-mentioned buckle path, and several riveting columns and perforations 1039 are arranged at the front end of the terminal module 100 near the extension area 1031 to increase the mechanical properties of the terminal module 100.

[0084] The area of ​​the primary injection molded body 102 corresponding to the buckle path is provided with a reinforcing rib 1022. The position of the reinforcing rib 1022 is shown in FIG. Fig.13 In specific implementation, the reinforcing rib 1022 is a long strip of plastic attached to the side of the primary injection molded body 102 away from the shielding sheet 103. The reinforcing rib can increase the strength of the corresponding area of ​​the primary injection molded body 102 on the one hand, and provide a basis for the high stability of the heat riveting column on the other hand, ensuring the crimping reliability of the terminal module.

[0085] like Fig.14 , Fig.15 As shown, the assembly process of the shielding sheet 103 and the primary injection molded body 102 is as follows: the shielding sheet 103 is placed on the primary injection molded body 102, and the two are fixed together by interference connection between the buckle protrusion 1037 and the buckle hole 1023, and at the same time, the hot rivet column 1024 on the primary injection molded body 102 passes through the notch 1038, and the rivet column on the primary injection molded body 102 passes through the through hole 1039; then, the hot rivet column 1024 and the rivet column are hot-riveted to form the following structure: Fig.15 The terminal module 100 shown in FIG. After assembly, there is a certain distance between the plate-shaped terminal 101 wrapped in the plastic 1021 and the sheet-shaped body of the shielding sheet 103 , and the dispersedly arranged heat rivet columns 1024 help to improve the consistency of the distance.

[0086] The present application is particularly applicable to a terminal module having more than three signal differential pairs 10111. In this embodiment, the terminal module has six signal differential pairs. Fig.12 , Fig.13As shown, the terminal 101 includes a terminal wiring 1011, and the two ends of the terminal wiring 1011 are fisheyes 1012 and terminal contacts 1013. The terminal wiring 1011 includes a signal terminal and a ground terminal, and the corresponding ground terminal contact 10131 is located at the front end of the ground terminal 10112, and the signal terminal contact 10132 is located at the front end of the signal terminal. Two adjacent signal terminals constitute a signal differential pair 10111, and each signal differential pair 10111 is located between two ground terminals 10112. The ground terminal 10112 is used to reduce the crosstalk between adjacent signal differential pairs in the same terminal. The riveting point arrangement method of the present application is more suitable for terminal modules with a wider spacing between two adjacent signal differential pairs 10111.

[0087] The assembled connector is as follows Fig.16 , Fig.17 As shown, the connector includes a terminal module A 201, a terminal module B 202, a fixing plate 203, a positioning plate 204, and an insulating housing 205. The terminal module A 201 and the terminal module B 202 are consistent with the structure of the terminal module 100 described above. The terminal modules A 201 and the terminal modules B 202 in the same connector are alternately arranged in the order of "ABAB". The terminal wiring of adjacent terminal modules A 201 and terminal modules B 202 is staggered, which is conducive to high-frequency signal transmission. The terminal modules A 201 and the terminal modules B 202 are fixed in the insulating housing 205 by plastic buckle interference fit. In order to prevent the multiple terminal modules A 201 and the terminal modules B 202 from shaking in the insulating housing 205, the multiple terminal modules A 201 and the terminal modules B 202 are fixed by the fixing plate 203. After the terminal modules A 201, the terminal modules B 202 and the fixing plate 203 are installed, a positioning plate 204 capable of protecting the fisheye is added to the fisheye end.

[0088] like Fig.18 , Fig.19As shown, the insulating housing 205 is U-shaped, and includes a longitudinal portion for plugging with the terminal contact 1013 and transverse portions arranged at both ends of the longitudinal portion. A support rib 2051 is connected between the opposite sides of the two transverse portions. The support rib 2051 is made of plastic. A avoidance groove 2052 is provided on the side of the transverse portion away from the support rib 2051. The width of the avoidance groove 2052 is slightly larger than the width of the support rib 2051. In specific implementation, after the terminal module is installed in the insulating housing 205, the support rib 2051 is adjacent to the primary injection molding body 102 of the outermost terminal module, and the support rib 2051 covers the plastic bulging portion 1025 of the primary injection molding body 102 of the terminal module. Since the support rib 2051 has a certain shrinkage elasticity, the plastic bulging portion 1025 will cause the support rib 2051 to bulge outward as a whole, affecting the side-by-side use of multiple connectors. A relief groove 2052 is provided on the opposite side of the insulating housing 205 away from the supporting rib 2051, which can accommodate the bulging supporting rib 2051 of the adjacent connector. This cleverly solves the problem of uneven surface caused by the outward bulging of the supporting rib 2051, which affects the side-by-side assembly. In other words, the relief groove 2052 and the supporting rib 2051 on the insulating housing 205 are compatible with the plastic deformation when the male end 300 of the connector and the female end 200 of the connector are plugged in, which is conducive to the side-by-side use of the connectors.

[0089] Fig. 20 and Fig.21 The connector mating area is shown in the figure. Fig. 20 , multiple terminal modules are inserted into the insulating housing 205, and two adjacent terminal modules A 201 and terminal modules B 202 are fitted together. After the male pin contacts the terminal contact 1013, the terminal contact 1013 is deformed, causing the plastic near the root of the terminal contact 1013 to swell, affecting the accuracy of the side-by-side installation of the terminal modules. At the same time, the position on the insulating housing 205 corresponding to the plastic bulging part 1025 is prone to form a bulging area 2054. In this application, the bending structure 1032 and the avoidance groove 2052 can effectively overcome the above-mentioned plastic bulging defects. See Fig.21 By providing the bending structure 1032 and the avoidance hole 1033, the plastic deformation when the male end and the female end of the connector are plugged in can be tolerated; Fig.21 At the same time, the M-shaped notch 1035 and the riveting point on the shielding sheet 103 are displayed. This structure can enhance the mechanical properties of the connector as a whole, reduce the deformation of the terminal module in the thickness direction during the crimping process, and is conducive to the side-by-side use of multiple terminal modules.

[0090] Example 2

[0091] This embodiment provides a connector. In Embodiment 1, the sheet-shaped body and the extension area 1031 of the shielding sheet 103 are integrally formed. In this embodiment, the sheet-shaped body and the extension area 1031 are divided into two parts, and the extension area 1031 is welded to the sheet-shaped body.

[0092] Example 3

[0093] This embodiment provides a connector, and in Embodiment 1, the notch 1035 is M-shaped. In this embodiment, the notch 1035 can be set to a regular or irregular shape, and the notch meets the following requirements: extending from the front edge of the extension area 1031 toward the bending structure 1032, and being spaced from the bending structure 1032. For example, the notch 1035 can be semicircular, semi-elliptical, rectangular or irregularly curved, or can be other notches with certain geometric shapes.

[0094] Example 4

[0095] This embodiment provides a terminal module, and the structure of the terminal module is consistent with the structure of the terminal module 100 in Embodiment 1, Embodiment 2 or Embodiment 3, and will not be described in detail here.

[0096] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the scope of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A terminal module, characterized in that: include: A primary injection molded body (102) is formed by integrally injection molding the terminal (101) and the injection molded part; A shielding sheet (103) is fixed to one side of the primary injection molded body (102), the shielding sheet comprising a sheet-like main body and an extension area (1031) provided at the front end of the sheet-like main body. The extension area (1031) is provided with a bending structure (1032) protruding in the direction of the primary injection molded body, the bending structure (1032) covers an area on the primary injection molded body (102) near the root of the terminal contact (1013), and the bending structure (1032) is provided with a avoidance hole (1033) for avoiding contact between the bending structure (1032) and the male end pin of the connector; After the terminal module is assembled, the groove (10321) of the bending structure (1032) accommodates the plastic bulging portion (1025) near the root of the terminal contact (1013) of the adjacent terminal module.

2. The terminal module according to claim 1, characterized in that: The extension area (1031) extends to the front end of the terminal contact (1013) to provide barrier protection for the terminal contact (1013), and a bulge (1034) for contacting the ground terminal contact (10131) is provided on the extension area (1031).

3. The terminal module according to claim 2, characterized in that: A notch (1035) is provided at a position at the front end of the extension area (1031) corresponding to the signal terminal contact (10132).

4. The terminal module according to claim 3, characterized in that: The notch (1035) extends from the front edge of the extension area (1031) towards the bending structure (1032), and is spaced apart from the bending structure (1032).

5. The terminal module according to claim 1, characterized in that: The extension area (1031) is welded to the sheet-like main body, or the extension area (1031) and the sheet-like main body are integrally formed.

6. A terminal module according to claim 1 or 4, characterized in that: The shielding sheet (103) is provided with a buckle protrusion (1037) and a notch (1038) adapted to contact the primary injection molded body (102). The primary injection molded body (102) is provided with a buckle hole (1023) matched with the buckle protrusion (1037) and a heat riveting column (1024), and the heat riveting column (1024) and the notch (1038) corresponding thereto are matched and riveted.

7. A terminal module according to claim 6, characterized in that: The snap-on protrusions (1037) on the shielding sheet (103) are arranged along the terminal routing (1011) to form a snap-on path consistent with the terminal routing (1011), and a reinforcing rib (1022) is provided on the primary injection molded body (102) in an area corresponding to the snap-on path.

8. A terminal module according to claim 7, characterized in that: The shielding sheet (103) is also provided with a through hole (1039), and the primary injection molded body (102) is provided with a riveted column corresponding to the through hole (1039), the riveted column being riveted with the through hole (1039).

9. A connector, comprising an insulating housing (205) and at least two terminal modules (100) mounted on the insulating housing (205), characterized in that: The terminal module (100) is the terminal module (100) according to any one of claims 1 to 8.

10. A connector according to claim 9, characterized in that: The insulating housing (205) comprises a longitudinal portion for plugging with the terminal contact (1013) and transverse portions arranged at two ends of the longitudinal portion, and a support rib (2051) is connected between the corresponding sides of the two transverse portions. After the terminal module is installed in the insulating housing (205), the support rib (2051) covers the plastic bulging portion (1025) of the outermost terminal module. A avoidance groove (2052) is provided on the side of the transverse portion away from the support rib (2051); when a plurality of connectors are used side by side, the avoidance groove (2052) accommodates the support rib (2051) of adjacent connectors.

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