Signal transmission module and connector

Abstract

The application discloses a signal transmission module and a connector, the signal transmission module comprises: a first signal transmission assembly and a second signal transmission assembly arranged adjacent to the first signal transmission assembly; the first signal transmission assembly comprises: a base, a first shielding plate and at least one first signal differential pair; the second signal transmission assembly comprises: a second shielding plate and at least one second signal differential pair, wherein the first shielding plate is arranged between the first signal differential pair and the second signal differential pair and is in contact connection with the second shielding plate through the first elastic connecting piece. The mutual conduction between the shielding members in the first signal transmission assembly and the second signal transmission assembly can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of differential signal connector, in particular to a signal transmission module and a connector comprising the same. BACKGROUND

[0002] With the development of information science and technology, the signal transmission requirement of connector is higher and higher, especially for high-speed backplane connector, the information transmission volume is larger and larger, and the transmission rate is faster and faster. As a result, the signal crosstalk is also increased. In order to reduce the crosstalk, the common method is to reduce the signal return path, generally a spring sheet is punched on the shielding member, and the spring sheet is lapped with the ground trace, the shielding member or other ground function mechanism.

[0003] However, with the development of miniaturization and high speed of the connector, slight changes in structure will bring significant changes to the transmission performance and reliability. The existing single spring sheet structure cannot meet the need of reducing crosstalk. Moreover, the existing spring sheet is easy to deform, which can cause poor contact.

[0004] Therefore, the current problems need to be solved urgently. SUMMARY

[0005] The purpose of the present application is to provide a signal transmission module and a connector, which can effectively solve the problem of signal crosstalk between each signal differential pair in the connector.

[0006] The present application provides a signal transmission module, which can be installed in a connector, comprising: a first signal transmission assembly and a second signal transmission assembly arranged adjacent to the first signal transmission assembly; the first signal transmission assembly comprises: a base, the base comprises a first receiving groove and a second receiving groove, the first receiving groove and the second receiving groove are respectively arranged on the opposite surfaces of the base; a first shielding plate, part of which is encapsulated in the base, one end of the first shielding plate is provided with a first ground terminal extending from one side of the base; and at least one first elastic connecting sheet is further provided; and at least one first signal differential pair is received in the first receiving groove and staggered with the first ground terminal; the second signal transmission assembly comprises: a second shielding plate, one end of the second shielding plate is provided with a second ground terminal received in the second receiving groove; and at least one second signal differential pair is arranged in the second receiving groove and staggered with the second ground terminal; wherein the first shielding plate is arranged between the first signal differential pair and the second signal differential pair, and is connected with the second shielding plate through the first elastic connecting sheet.

[0007] Optionally, in some embodiments of the present application, the first signal transmission assembly further comprises a shielding connector fixedly connected with the first shielding plate and arranged between the base and the first shielding plate; wherein at least one second elastic connecting piece is arranged on the shielding connector and in contact with the second shielding plate through the second elastic connecting piece.

[0008] Optionally, in some embodiments of the present application, the first signal transmission assembly further comprises a first insulator for encapsulating the first signal differential pair, a first cable comprising a first signal connecting line and a first ground line, the first signal connecting line being electrically connected with the first signal differential pair, and the first ground line being electrically connected with the first ground terminal, a first ground sheet arranged at a connection between the first cable and the first signal differential pair and fixedly connected with the first shielding plate, and a first tail insulator arranged at an end of the first insulator close to the first ground sheet and capable of covering at least the connection between the first cable and the first signal differential pair; and the second signal transmission assembly further comprises a second insulator for encapsulating the second signal differential pair, a second cable comprising a second signal connecting line and a second ground line, the second signal connecting line being electrically connected with the second signal differential pair, and the second ground line being electrically connected with the second ground terminal, a second ground sheet arranged at a connection between the second cable and the second signal differential pair and fixedly connected with the second shielding plate, and a second tail insulator arranged at an end of the second insulator close to the second ground sheet and capable of covering at least the connection between the second cable and the second signal differential pair.

[0009] Optionally, in some embodiments of the present application, a tail elastic finger is arranged on the first ground sheet and / or the second ground sheet, and the tail elastic finger is capable of conducting with an external metal shell to realize a grounding function.

[0010] Optionally, in some embodiments of the present application, the base further comprises a first positioning column and a second positioning column; a first positioning hole is arranged on the first insulator and corresponds to the first positioning column, and the first positioning hole is capable of cooperating with the first positioning column to fix the position between the first insulator and the base; and a second positioning hole is arranged on the second insulator and corresponds to the second positioning column, and the second positioning hole is capable of cooperating with the second positioning column to fix the position between the second insulator and the base.

[0011] Optionally, in some embodiments of the present application, at least one first mounting hole is arranged on the first shielding plate, and a first mounting post corresponding to the first mounting hole is arranged on the first insulator, which can be matched with the first mounting hole to fix the position between the first insulator and the first shielding plate; at least one second mounting hole is arranged on the second shielding plate, and a second mounting post corresponding to the second mounting hole is arranged on the second insulator, which can be matched with the second mounting hole to fix the position between the second insulator and the second shielding plate.

[0012] Optionally, in some embodiments of the present application, at least one first through hole is arranged on the first shielding plate, and the first through hole is arranged corresponding to the first signal differential pair; at least one second through hole is arranged on the second shielding plate, and the second through hole is arranged corresponding to the second signal differential pair.

[0013] Optionally, in some embodiments of the present application, the sum of the length of the second insulator and the length of the base is the same as the length of the first insulator.

[0014] Correspondingly, the present application also provides a connector, which comprises a base shell and an outer shell; the base shell and the outer shell jointly form a receiving space, and a plurality of signal transmission modules are received in the receiving space; wherein the tail elastic fingers in the signal transmission modules are in contact with the outer shell.

[0015] Optionally, in some embodiments of the present application, the connector further comprises at least one grounding member, which is arranged at the bottom of the outer shell, and the grounding member is elastically connected with the outer shell.

[0016] Compared with the prior art, in the signal transmission module and the connector of the present application, the first grounding terminal is arranged in a door shape and surrounds the first signal differential pair, which can reduce the signal crosstalk between two adjacent pairs of the first signal differential pair; the second grounding terminal is arranged in a door shape and surrounds the second signal differential pair, which can reduce the signal crosstalk between two adjacent pairs of the second signal differential pair. The first grounding sheet is connected with the first shielding plate and the first cable respectively, which can realize the grounding function of the first shielding plate; the second grounding sheet is connected with the second shielding plate and the second cable respectively, which can realize the grounding function of the second shielding plate.

[0017] Further, the first elastic connecting piece and the second elastic connecting piece respectively protrude from a surface of the base to which the first shielding plate is mounted, so that mutual conduction between the shielding members in the first signal transmission assembly and the second signal transmission assembly is achieved. Finally, the protruding tail elastic fingers can be in conduction with the shell, so that the grounding function of the external metal shell is achieved, and the safety of the entire connector is improved. The grounding member can make the grounding wire of the connector in conduction with the PCB, so that all the shielding members and the shell in the connector are in conduction with the grounding wire, that is, the signal backflow path is shortened by the shielding lapping, and the requirements of high speed, miniaturization and multi-channel are met, and the transmission performance of the connector is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 A perspective structural schematic view of the signal transmission module according to the preferred embodiment of the present application;

[0020] Figure 2 A partial structural plan schematic view of the signal transmission module according to the preferred embodiment of the present application;

[0021] Figure 3 A perspective structural schematic view of the first signal transmission assembly according to the preferred embodiment of the present application;

[0022] Figure 4 A partial structural perspective schematic view of the first signal transmission assembly according to the preferred embodiment of the present application; Figure 1 ;

[0023] Figure 5 A perspective structural exploded schematic view of the first signal transmission assembly according to the preferred embodiment of the present application; Figure 1 ;

[0024] Figure 6 A perspective structural exploded schematic view of the first signal transmission assembly according to the preferred embodiment of the present application; Figure 2 ;

[0025] Figure 7 A perspective schematic view of the base of the first signal transmission assembly according to the preferred embodiment of the present application; Figure 1 ;

[0026] Figure 8PERSPECTIVE VIEW OF THE BASE ACCORDING TO THE PREFERRED EMBODIMENT OF THE INVENTION Figure 2 ;

[0027] Figure 9 PERSPECTIVE VIEW OF THE PART OF THE FIRST SIGNAL TRANSMISSION ASSEMBLY ACCORDING TO THE PREFERRED EMBODIMENT OF THE INVENTION Figure 2 ;

[0028] Figure 10 PERSPECTIVE VIEW OF THE PART OF THE FIRST SIGNAL TRANSMISSION ASSEMBLY ACCORDING TO THE PREFERRED EMBODIMENT OF THE INVENTION Figure 3 ;

[0029] Figure 11 PERSPECTIVE VIEW OF THE FIRST INSULATOR OF THE FIRST SIGNAL TRANSMISSION ASSEMBLY ACCORDING TO THE PREFERRED EMBODIMENT OF THE INVENTION

[0030] Figure 12 PERSPECTIVE VIEW OF THE SECOND SIGNAL TRANSMISSION ASSEMBLY ACCORDING TO THE PREFERRED EMBODIMENT OF THE INVENTION Figure 1 ;

[0031] Figure 13 PERSPECTIVE VIEW OF THE SECOND SIGNAL TRANSMISSION ASSEMBLY ACCORDING TO THE PREFERRED EMBODIMENT OF THE INVENTION Figure 2 ;

[0032] Figure 14 PERSPECTIVE VIEW OF THE SECOND SIGNAL TRANSMISSION ASSEMBLY ACCORDING TO THE PREFERRED EMBODIMENT OF THE INVENTION Figure 1 ;

[0033] Figure 15 PERSPECTIVE VIEW OF THE SECOND SIGNAL TRANSMISSION ASSEMBLY ACCORDING TO THE PREFERRED EMBODIMENT OF THE INVENTION Figure 2 ;

[0034] Figure 16 PERSPECTIVE VIEW OF THE CONNECTOR ACCORDING TO THE PREFERRED EMBODIMENT OF THE INVENTION

[0035] Figure 17 PERSPECTIVE VIEW OF THE CONNECTOR ACCORDING TO THE PREFERRED EMBODIMENT OF THE INVENTION

[0036] Figure 18 PERSPECTIVE VIEW OF THE GROUND OF THE CONNECTOR ACCORDING TO THE PREFERRED EMBODIMENT OF THE INVENTION

[0037] MAIN REFERENCE NUMBERS EXPLANATION

[0038]

[0039] DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0041] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0042] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise explicitly specified and limited, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0044] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For purposes of simplicity of the present disclosure, the following description will refer to specific examples of the present application. It is understood, however, that these are only examples and are not intended to limit the present application in any way. Furthermore, in an effort to simplify the present disclosure, certain terms that are common through the different examples have not been specifically defined herein. It will be apparent to one of ordinary skill in the art, however, that the terms are used herein to refer to a specific structure or more general structure. For example, it will be understood that a term used in a certain example is intended to also be applied to other examples having a similar or identical structure. Moreover, it will be understood that the use of certain terms in the description is merely for the purpose of providing a clear and consistent understanding of the present application. Furthermore, the present application provides various examples of specific processes and materials. However, one of ordinary skill in the art will readily recognize that other processes and / or materials can be used.

[0045] In particular, as shown in Figures 1-2 the present application provides a signal transmission module 10 capable of being installed in a connector, the signal transmission module 10 comprising: a first signal transmission assembly 100 and a second signal transmission assembly 200; the shielding members in the first signal transmission assembly 100 and the second signal transmission assembly 200 are in communication with each other, realizing a full shielding structure.

[0046] In particular, as shown in Figures 3-6 the first signal transmission assembly 100 comprises a base 110, a first shielding plate 120, at least one first signal differential pair 130, a first insulator 140, a first cable 150, a first grounding sheet 160, a first tail insulator 170, and a shielding connecting member 180.

[0047] As shown in Figures 7-8 the base 110 and the first shielding plate 120 are fixedly connected, comprising a first receiving groove 111, a first positioning column 112, a second receiving groove 113, and a second positioning column 114; wherein the first receiving groove 111 and the second receiving groove 113 are respectively located on the opposite surfaces of the base 110; the first positioning column 112 is arranged on the surface of the base 110 provided with the first receiving groove 111, that is, the protruding direction of the first positioning column 112 is the same as the opening direction of the first receiving groove 111; the second positioning column 114 is arranged on the surface of the base 110 provided with the second receiving groove 113, that is, the protruding direction of the second positioning column 114 is the same as the opening direction of the second receiving groove 113; the first receiving groove 111 can provide a receiving space for the first signal differential pair 130, the first positioning column 112 can be used for position fixation with the first insulator 140, the second receiving groove 113 can provide a receiving space for the corresponding components in the second signal transmission assembly 200, and the second positioning column 114 can be used for position fixation between the first signal transmission assembly 100 and the second signal transmission assembly 200.

[0048] As shown in Figures 9-10As shown, the first shielding plate 120 comprises a first terminal shielding area 121, a first mounting shielding area 122 and a first wiring shielding area 123. The first terminal shielding area 121 is provided with at least one first ground terminal 1211 arranged in a door shape and surrounding the first signal differential pair 130; that is, the first ground terminal 1211 is arranged corresponding to the signal connection end of the first signal differential pair 130 and staggered with the first signal differential pair 130, for reducing the signal crosstalk between two adjacent first signal differential pairs 130. In the embodiment, the first ground terminal 1211 can be an independent component or integrally arranged with the first shielding plate 120. The first mounting shielding area 122 is provided with at least one first through hole 1212 corresponding to the position of the first signal differential pair 130 and arranged at the joint area of the first terminal shielding area 121 and the first wiring shielding area 123, which can be used for adjusting impedance and reducing the signal crosstalk between the first signal differential pairs 130; preferably, the shape of the first through hole 1212 comprises at least one of a square, a circle and an ellipse. The first mounting shielding area 122 is further provided with at least one first mounting hole 1221, which can realize the position fixation between the first shielding plate 120 and the first insulator 140. The first wiring shielding area 123 is provided with at least one first elastic connecting piece 1231 protruding from the surface of the first shielding plate 120 mounted with the base 110, which can realize the mutual conduction between the first signal transmission assembly 100 and the shielding member in the second signal transmission assembly 200.

[0049] The first signal differential pair 130 is in a strip shape and can be accommodated in the first insulator 140 for signal transmission. Figure 11 As shown, the first insulator 140 is provided with a first positioning hole 141 and a first mounting column 142; the first positioning hole 141 is arranged corresponding to the first positioning column 112 and can be matched with the first positioning column 112 to realize the position fixation between the first insulator 140 and the base 110; the first mounting column 142 is arranged corresponding to the first mounting hole 1221 and can be matched with the first mounting hole 1221 to realize the position fixation between the first insulator 140 and the first shielding plate 120.

[0050] The first cable 150 includes a first signal connection line and a first ground line, the first signal connection line is electrically connected with the first signal differential pair 130 to realize signal transmission, and the first ground line is electrically connected with the first ground sheet 160 to realize grounding function. The first ground sheet 160 is in overall U shape, is arranged at the connection position of the first cable 150 and the first signal differential pair 130, and is arranged corresponding to the first wire shielding area 123 of the first shielding plate 120. The first ground sheet 160 can not only increase the stability of the first cable 150 to fix the first cable 150, but also can realize the grounding function of the first shielding plate 120 by the buckle connection with the first shielding plate 120. The first ground sheet 160 further includes a tail elastic finger 161, the tail elastic finger 161 can be conductive with an external metal shell to realize the grounding function of the external metal shell and improve the safety of the whole connector. The first tail insulator 170 is arranged at the end of the first insulator 140 close to the first ground sheet 160, can cover at least the connection position of the first cable 150 and the first signal differential pair 130, and further fix the first ground sheet 160 and the first shielding plate 120 to improve reliability.

[0051] The shielding connector 180 is buckle-connected with the first shielding plate 120 and is arranged between the base and the first shielding plate 120, at least one second elastic connecting sheet 181 is arranged on the shielding connector 180, the second elastic connecting sheet 181 protrudes from the surface of the first shielding plate 120 to which the base 110 is mounted, and is used for realizing the mutual conduction between the shielding members in the first signal transmission assembly 100 and the second signal transmission assembly 200. In the embodiment, the shielding connector 180 is independently arranged, on one hand, the shielding connector 180 and the first shielding plate 120 are arranged in stack to enhance the stability of the first shielding plate 120, and on the other hand, the shielding connector 180 can be used for adjusting impedance to improve the shielding effect between the first signal transmission assembly 100 and the second signal transmission assembly 200 and reduce the problem of signal crosstalk between the first signal transmission assembly 100 and the second signal transmission assembly 200.

[0052] In the assembling process of the first signal transmission assembly 100, first, the shielding connector 180 is arranged on the surface of the first shielding plate 120 provided with the first elastic connecting piece 1231, and the first shielding plate 120 provided with the shielding connector 180 is encapsulated in the base 110, so that the second elastic connecting piece 181 of the shielding connector 180 and the first elastic connecting piece 1231 simultaneously face the opening side of the second receiving groove 113 of the base 110. Then, the first signal differential pair 130 is encapsulated in the first insulator 140, and the first insulator 140 encapsulating the first signal differential pair 130 is arranged on the base 110 arranged with the first shielding plate 120; at this time, the first ground terminal 1211 is arranged in a door shape and surrounds the first signal differential pair 130; the first signal differential pair 130 is received in the first receiving groove 111; the first positioning column 112 and the first positioning hole 141 are matched with each other to fix the position between the first insulator 140 and the base 110; the first mounting column 142 and the first mounting hole 1221 are matched with each other to fix the position between the first insulator 140 and the first shielding plate 120. Then, the first cable 150 is connected with the first signal differential pair 130, and the first ground piece 160 is buckled on the first shielding plate 120, so as to conduct the ground wire and the first shielding plate 120, thereby realizing the grounding function of the first shielding plate 120. Finally, the first tail insulator 170 is encapsulated at the connection between the first cable 150 and the first signal differential pair 130, and is connected with the first insulator 140 close to the end of the first ground piece 160, further fixing the first ground piece 160 and the first shielding plate 120, and improving the reliability.

[0053] It can be understood that when the first signal transmission assembly 100 is assembled, the first ground terminal 1211 is arranged in a door shape and surrounds the first signal differential pair 130, which is used to reduce the signal crosstalk between two adjacent first signal differential pairs 130; the first ground piece 160 is connected with the first shielding plate 120 and the first cable 150 respectively, so as to realize the grounding function of the first shielding plate 120; further, the first elastic connecting piece 1231 and the second elastic connecting piece 181 respectively protrude from the surface of the first shielding plate 120 arranged with the base 110, which is used to realize the mutual conduction between the shielding members in the first signal transmission assembly 100 and the second signal transmission assembly 200; finally, the protruding tail elastic finger 161 can be conducted with an external metal shell, thereby realizing the grounding function of the external metal shell and improving the safety of the entire connector.

[0054] In an embodiment of the present application, a splicing structure is arranged between the first insulator 140 and the first tail insulator 170, which comprises a splicing groove formed on the first insulator 140 and a splicing block formed on the first tail insulator 170; the splicing groove and the splicing block are connected to each other to form the splicing structure. The splicing structure can prevent the first tail insulator 170 from falling off the first insulator 140, and enhance the stability of the first signal transmission assembly 100. It can be understood that the splicing structure can also comprise a splicing block formed on the first insulator 140 and a splicing groove formed on the first tail insulator 170.

[0055] Specifically, as shown in Figures 12-13 The second signal transmission assembly 200 comprises a second shielding plate 210, at least one second signal differential pair 220, a second insulator 230, a second cable 240, a second grounding sheet 250 and a second tail insulator 260.

[0056] As shown in Figures 14-15 The second shielding plate 210 comprises a second terminal shielding area 211, a second mounting shielding area 212 and a second wiring shielding area 213. The second terminal shielding area 211 is provided with at least one second grounding terminal 2111, which is arranged in a door shape and surrounds the second signal differential pair 220; that is, the second grounding terminal 2111 is arranged corresponding to the signal connection end of the second signal differential pair 220, and is staggered with the second signal differential pair 220, so as to reduce the signal crosstalk between two adjacent second signal differential pairs 220. In the present embodiment, the second grounding terminal 2111 can be an independent component or can be integrally arranged with the second shielding plate 210. The second mounting shielding area 212 is provided with at least one second through hole 2121 at the position where the second mounting shielding area 212 and the second wiring shielding area 213 meet, which is arranged corresponding to the position of the second signal differential pair 220, and can be used to adjust the impedance and reduce the signal crosstalk between the second signal differential pairs 220; preferably, the shape of the second through hole 2121 comprises at least one of a square, a circle and an ellipse. The second mounting shielding area 212 is further provided with at least one second mounting hole 2122, which can fix the position between the second shielding plate 210 and the second insulator 230.

[0057] The second signal differential pair 220 is in a long strip shape, can be accommodated in the second insulator 230, and is used for transmitting signals. The second insulator 230 is provided with a second positioning hole 231 and a second mounting column 232; the second positioning hole 231 is arranged corresponding to the second positioning column 114 and can be matched with the second positioning column 114 to realize the position fixation between the second insulator 230 and the base 110; and the second mounting column 232 is arranged corresponding to the second mounting hole 2122 and can be matched with the second mounting hole 2122 to realize the position fixation between the second insulator 230 and the second shielding plate 210.

[0058] The second cable 240 includes a second signal connecting line and a second grounding line; the second signal connecting line is electrically connected with the second signal differential pair 220 to realize signal transmission; and the second grounding line is electrically connected with the second grounding sheet 250 to realize the grounding function. The second grounding sheet 250 is in a U shape as a whole, is arranged at the connection position of the second cable 240 and the second signal differential pair 220, and is arranged corresponding to the second wire shielding area 213 of the second shielding plate 210; the second grounding sheet 250 can not only increase the stability of the second cable 240 to fix the second cable 240, but also can be buckled with the second shielding plate 210 to conduct the second grounding line and the second shielding plate 210, thereby realizing the grounding function of the second shielding plate 210. It can be understood that the second grounding sheet 250 can also include a tail elastic finger, which can be conducted with an external metal shell, thereby realizing the grounding function of the external metal shell and improving the safety of the whole connector. The second tail insulator 260 is arranged at the end of the second insulator 230 close to the second grounding sheet 250, can cover at least the connection position of the second cable 240 and the second signal differential pair 220, and can further fix the second grounding sheet 250 and the second shielding plate 210 to improve the reliability.

[0059] In the assembling process of the second signal transmission component 200, the second signal differential pair 220 is first encapsulated in the second insulator 230. Then the second shielding plate 210 is installed on the second insulator 230 on which the second signal differential pair 220 is installed; at this time, the second grounding terminal 2111 is arranged in a door shape and surrounds the second signal differential pair 220; the second mounting column 232 and the second mounting hole 2122 are matched with each other to realize the positional fixation between the second insulator 230 and the second shielding plate 210. Then the second cable 240 is connected with the second signal differential pair 220, and the second grounding sheet 250 is buckled on the second shielding plate 210 to turn on the grounding wire and the second shielding plate 210, thereby realizing the grounding function of the second shielding plate 210. Finally, the second tail insulator 260 is encapsulated at the connection between the second cable 240 and the second signal differential pair 220, and is connected with the end of the second insulator 230 close to the second grounding sheet 250, thereby further fixing the second grounding sheet 250 and the second shielding plate 210 and improving the reliability.

[0060] In an embodiment of the present application, a splicing structure is arranged between the second insulator 230 and the second tail insulator 260, and the splicing structure comprises a splicing groove formed on the second insulator 230 and a splicing block formed on the second tail insulator 260; the splicing groove and the splicing block are connected with each other to form the splicing structure. The splicing structure can prevent the second tail insulator 260 from falling off the second insulator 230 and enhance the stability of the second signal transmission component 200. It can be understood that the splicing structure can also comprise a splicing block formed on the second insulator 230 and a splicing groove formed on the second tail insulator 260.

[0061] In the present application, the length of the second insulator 230 is less than the length of the first insulator 140. Preferably, the sum of the length of the second insulator 230 and the length of the base 110 is the same as the length of the first insulator 140; such arrangement can ensure that the signal transmission module 10 has stronger integrity and structural stability, and can also make the second signal differential pair 220 of the second signal transmission assembly 200 and the second ground terminal 2111 just capable of being accommodated in the second accommodating groove 113. It can be understood that in the first signal transmission assembly 100, the first shielding plate 120, the first signal differential pair 130 and the first insulator 140 are matched with each other; in the second signal transmission assembly 200, the second shielding plate 210, the second signal differential pair 220 and the second insulator 230 are matched with each other. That is, the length of the second shielding plate 210 is less than the length of the first shielding plate 120; the length of the second signal differential pair 220 is less than the length of the first signal differential pair 130.

[0062] In the installation process of the signal transmission module 10, after the first signal transmission assembly 100 and the second signal transmission assembly 200 are matched with each other after being respectively installed, the second signal differential pair 220 and the second ground terminal 2111 are accommodated in the second accommodating groove 113; at this time, the end of the first elastic connecting piece 1231 abuts against the surface of the second ground piece 250 facing the first signal transmission assembly 100; the end of the second elastic connecting piece 181 abuts against the surface of the second ground terminal 2111 facing the first signal transmission assembly 100; thereby the first shielding plate 120 and the second shielding plate 210 are conducted, the conduction of all shielding structures in the first signal transmission assembly 100 and the second signal transmission assembly 200 is realized, and the grounding function is realized through the first cable 150 and the second cable 240.

[0063] In an embodiment of the present application, the connection mode of the first signal transmission assembly 100 and the second signal transmission assembly 200 includes snap connection, magnetic connection, adhesion and simultaneous accommodation in a fixed space to realize clamping, and is not limited thereto.

[0064] As Figures 16-17As shown, the application also provides a connector 1, which can realize shielding full conduction, that is, can solve the problem of signal return current path shortening caused by shielding overlap, and can also solve the requirements of high speed, miniaturization and multi-channel, and improve the transmission performance of the connector. The connector 1 comprises a base shell 20 and a shell 30; the base shell 20 and the shell 30 jointly form a receiving space, and a plurality of signal transmission modules 10 are received in the receiving space; wherein the tail elastic fingers 161 in the signal transmission module 10 are in contact with the shell 30. Preferably, the shell 30 is a conductive shell, including a metal shell. The tail elastic fingers 161 can be in conduction with the metal shell, thereby realizing the grounding function of the metal shell and improving the safety of the entire connector. It can be understood that the connector 1 in the application can also include some other components of conventional structure, which will not be described herein.

[0065] As shown, Figure 18 In an embodiment of the application, the connector 1 further comprises at least one grounding member 40 for connecting the ground wire of the connector 1 with the ground of the PCB; the grounding member 40 is arranged at the bottom of the shell 30, and the grounding member 40 is elastically connected with the shell 30. Preferably, at least one side of the grounding member 40 is provided with an elastic convex 41, and it can be understood that due to the arrangement of the elastic convex 41, there is a certain adjustability between the grounding member 40 and the shell 30, which is more conducive to the conduction between the connector 1 and the PCB.

[0066] In summary, in the signal transmission module 10 and the connector 1 of the application, the first ground terminal 1211 is arranged in a door shape and surrounds the first signal differential pair 130, which can reduce the signal crosstalk between adjacent two pairs of the first signal differential pair 130; the second ground terminal 2111 is arranged in a door shape and surrounds the second signal differential pair 220, which can reduce the signal crosstalk between adjacent two pairs of the second signal differential pair 220. The first ground sheet 160 connects the first shielding plate 120 and the first cable 150 respectively, which can realize the grounding function of the first shielding plate 120; the second ground sheet 250 connects the second shielding plate 210 and the second cable 240 respectively, which can realize the grounding function of the second shielding plate 210.

[0067] Further, the first elastic connecting piece 1231 and the second elastic connecting piece 181 respectively protrude from a surface of the base 110 to which the first shielding plate 120 is mounted, so as to realize mutual conduction between the shielding members in the first signal transmission assembly 100 and the second signal transmission assembly 200. Finally, the protruding tail elastic finger 161 can be in conduction with the shell 30, so as to realize the grounding function of the external metal shell and improve the safety of the entire connector 1; and the grounding member 40 can be arranged to realize conduction between the grounding wire of the connector 1 and the PCB, so as to realize conduction between all shielding members and the shell in the connector 1 and the grounding wire, that is, the signal backflow path can be shortened by shielding lapping, and the requirements of high speed, miniaturization and multi-channel can be met, and the transmission performance of the connector can be improved.

[0068] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0069] The signal transmission module 10 and the connector 1 provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples in this paper; the above embodiment description is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, the specific implementation manner and application range of the present application can be changed according to the idea of the present application, and the above description should not be understood as a limitation of the present application.

Claims

1. A signal transmission module, capable of being installed in a connector, characterized in that: The signal transmission module comprises a first signal transmission component and a second signal transmission component arranged adjacent to the first signal transmission component; The first signal transmission component comprises: a base comprising a first receiving groove and a second receiving groove arranged on opposite surfaces of the base; a first shielding plate partially encapsulated in the base, one end of the first shielding plate being provided with a first grounding terminal extending from one side of the base, and further provided with at least one first elastic connecting piece; and at least one first signal differential pair received in the first receiving groove and staggered with the first grounding terminal; wherein the first shielding plate comprises a first terminal shielding area, a first mounting shielding area and a first wiring shielding area, the first terminal shielding area being provided with at least one first grounding terminal arranged in a door shape and surrounding the first signal differential pair; The second signal transmission component comprises: a second shielding plate provided with a second grounding terminal at one end and received in the second receiving groove; and at least one second signal differential pair arranged in the second receiving groove and staggered with the second grounding terminal; wherein the first shielding plate is arranged between the first signal differential pair and the second signal differential pair and is in contact with the second shielding plate through the first elastic connecting piece; The first signal transmission component further comprises a shielding connecting piece fixedly connected with the first shielding plate and arranged between the base and the first shielding plate; wherein the shielding connecting piece is provided with at least one second elastic connecting piece in contact with the second shielding plate; the first shielding plate is provided with at least one first through hole corresponding to the first signal differential pair, and the second shielding plate is provided with at least one second through hole corresponding to the second signal differential pair.

2. The signal transmission module of claim 1, wherein, The first signal transmission component further comprises: a first insulator for encapsulating the first signal differential pair; a first cable comprising a first signal connecting line and a first grounding line, the first signal connecting line being electrically connected with the first signal differential pair, and the first grounding line being electrically connected with the first grounding terminal; a first grounding piece arranged at the connection between the first cable and the first signal differential pair and fixedly connected with the first shielding plate; and a first tail insulator arranged at the end of the first insulator close to the first grounding piece and capable of covering at least the connection between the first cable and the first signal differential pair; The second signal transmission component further comprises: a second insulator for encapsulating the second signal differential pair; a second cable comprising a second signal connecting line and a second grounding line, the second signal connecting line being electrically connected with the second signal differential pair, and the second grounding line being electrically connected with the second grounding terminal; a second grounding piece arranged at the connection between the second cable and the second signal differential pair and fixedly connected with the second shielding plate; and A second tail insulator is arranged at an end of the second insulator close to the second grounding sheet and covers at least the connection between the second cable and the second signal differential pair.

3. The signal transmission module of claim 2, wherein, Tail elastic fingers are arranged on the first grounding sheet and / or the second grounding sheet, which can be in conductive connection with an external metal shell to realize grounding function.

4. The signal transmission module of claim 2, wherein, The base further comprises a first positioning column and a second positioning column; A first positioning hole is arranged on the first insulator, which is arranged corresponding to the first positioning column and can be in mutual cooperation with the first positioning column to fix the position between the first insulator and the base; and A second positioning hole is arranged on the second insulator, which is arranged corresponding to the second positioning column and can be in mutual cooperation with the second positioning column to fix the position between the second insulator and the base.

5. The signal transmission module of claim 2, wherein, At least one first mounting hole is arranged on the first shielding plate, and a first mounting column corresponding to the first mounting hole is arranged on the first insulator, which can be in mutual cooperation with the first mounting hole to fix the position between the first insulator and the first shielding plate. At least one second mounting hole is arranged on the second shielding plate, and a second mounting column corresponding to the second mounting hole is arranged on the second insulator, which can be in mutual cooperation with the second mounting hole to fix the position between the second insulator and the second shielding plate.

6. The signal transmission module of claim 2, wherein, The sum of the length of the second insulator and the base is the same as the length of the first insulator.

7. A connector characterized by comprising: The connector further comprises a base shell and a shell; the base shell and the shell jointly form a receiving space, and a plurality of signal transmission modules as claimed in any one of claims 1 to 6 are received in the receiving space; wherein The tail elastic fingers in the signal transmission module are in contact connection with the shell.

8. The connector of claim 7, wherein, The connector further comprises at least one grounding member, which is arranged at the bottom of the shell and is in elastic connection between the grounding member and the shell.

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