A connector and connector assembly

Abstract

The application relates to the technical field of electric connectors, in particular to a connector and a connector assembly. The connector assembly comprises a connector, and the connector comprises a connecting module. The connecting module comprises an insulator and a differential pair. The differential pair comprises a contact piece, and the contact piece has an elastic section. The insulator is provided with a contact piece mounting hole. The contact piece is mounted in the contact piece mounting hole. One end of the contact piece is used for electrically connecting with a cable, and the other end is used for electrically connecting with a signal contact on a printed board. The elastic section is used for elastically deforming when the contact piece is electrically connected with the printed board, so that the contact piece elastically contacts with the printed board. The contact piece is not easily affected by errors to cause poor contact. When the connector is disassembled from the printed board, the contact piece is not easily abraded, and the contact is reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical connectors, in particular to a connector and a connector assembly. BACKGROUND

[0002] A high-speed backplane connector is used for interconnection between a printed board and a high-speed cable, the high-speed cable has two signal lines for transmitting differential signals, accordingly, the connector has a connection module for transmitting differential signals, the connection module includes a differential pair, a grounding contact and a peripheral shielding assembly, the differential pair is formed by a pair of two signal terminals, the signal terminals constitute the contact of the differential pair, one end of the signal terminal is connected with the signal line of the cable correspondingly, and the other end is connected with the printed board to realize signal conduction, the grounding contact is a grounding terminal, one end of the grounding terminal is connected with the cable shielding conductively, and the other end is connected with the grounding conductor of the printed board conductively, and the shielding assembly is connected with the grounding terminal conductively to realize shielding isolation of the signal terminal. Wherein, for the conductive connection between the contact and the printed board, the fish-eye structure is adopted in the prior art, the signal terminal and the grounding terminal are both fish-eye terminals, the printed board is provided with a conductive connection hole, and one end of the fish-eye terminal provided with a fish-eye hole is inserted into the conductive connection hole on the printed board and forms an interference fit, so as to realize the conductive connection.

[0003] This way of realizing the conductive connection between the connector and the printed board by adopting the fish-eye structure, in the actual production process, since the fish-eye terminal needs to be inserted into the conductive connection hole on the printed board for strong installation to ensure reliable contact, in order to ensure that a moderate interference fit is formed in the horizontal direction, not only the size of the fish-eye part needs to be strictly controlled, but also the aperture size of the conductive connection hole on the printed board needs to be strictly controlled, the processing difficulty is large, and the contact failure is prone to occur due to the size error, and since the contact is formed by relying on the interference amount, after the connector and the printed board are disassembled and assembled for many times, the contact reliability is prone to be affected due to wear. SUMMARY

[0004] The present application aims to provide a connector to solve the problem that the existing connector is prone to contact failure when connected with a printed board, and aims to provide a connector assembly to solve the problem that the existing connector is prone to contact failure when connected with a printed board.

[0005] The technical scheme of the connector of the present application is as follows:

[0006] A connector, comprising a connection module, the connection module comprising an insulator and a differential pair, the differential pair comprising a contact, the contact having an elastic section, the insulator being provided with a contact mounting hole, the contact being mounted in the contact mounting hole, one end of the contact being used for conductive connection with a cable, the other end of the contact being used for conductive connection with a signal contact on a printed board, and the elastic section being used for elastic deformation when the contact is conductively connected with the printed board to enable the contact to elastically contact the printed board.

[0007] Beneficial effects: by setting the elastic section on the contact of the differential pair, the contact can be elastically deformed under the pressure of the printed board when the connector is connected with the printed board, and the elastic conductive connection can be formed in the connection direction, avoiding the influence of the size error in the horizontal direction perpendicular to the connection direction, and the contact is not easy to be affected by the error to cause poor contact, and the contact is not easy to be worn when the connector is disassembled with the printed board, which is beneficial to reliable contact.

[0008] Further, the contact includes a hair button, and the hair button constitutes the elastic section of the contact.

[0009] Beneficial effects: by setting two hair buttons as a differential pair to transmit differential signals, the elastic characteristics of the hair button itself can be utilized to form an elastic conductive connection, and the contact is reliable.

[0010] Further, the connection module further includes a cable, an end of the cable is provided with a terminal, the contact mounting hole is a hair button mounting hole, the hair button has a wiring end located in the hair button mounting hole, and the terminal extends into the hair button mounting hole to conductively connect with the wiring end of the hair button.

[0011] Beneficial effects: when the hair button is compressed, the terminal extending into the hair button mounting hole can reliably contact the hair button.

[0012] Further, the connection module further includes a shielding assembly arranged outside the differential pair, and the shielding assembly includes a cable connecting portion and a printed board connecting portion, the cable connecting portion is used for conductive connection with the cable shielding, and the printed board connecting portion is an elastic portion used for elastically pressing contact with a grounding contact on the printed board.

[0013] Beneficial effects: the elastic portion elastically presses the grounding contact on the printed board to realize shielding conduction, and the signal conduction and the grounding conduction are both elastic conductive contact, which is beneficial to ensure good contact.

[0014] Further, the shielding assembly includes a shielding plate, the connector has a connection end used for connection with the printed board, the shielding plate is arranged at the connection end of the connector, and a grounding spring plate is protrudingly arranged on the shielding plate, the grounding spring plate constitutes the elastic portion, and the grounding spring plate is used for conductive contact with the grounding contact on the printed board.

[0015] Beneficial effects: by arranging the shielding plate at the connection end, the grounding spring plate arranged on the shielding plate is conductive with the grounding contact on the printed board, which is beneficial to improve the shielding effect between the differential pair and the printed board.

[0016] Further, the shielding assembly further comprises an adapter plate, the adapter plate is arranged on the side of the shielding plate away from the grounding spring, the shielding plate is provided with a fixing protrusion, the adapter plate is provided with a fixing hole, the fixing protrusion is inserted into the fixing hole to fix the shielding plate and the adapter plate in electrically conductive contact.

[0017] Beneficial effects: By arranging the adapter plate on one side of the shielding plate, and inserting the fixing protrusion on the shielding plate into the fixing hole on the adapter plate, the gap at the connection is small, and after the grounding spring is processed by blanking on the shielding plate to form a notch on the plate surface, the adapter plate can cover the notch to ensure the shielding effect.

[0018] Further, the shielding assembly further comprises a first shielding sheet, the first shielding sheet is arranged at the periphery of the contact and on the side of the adapter plate away from the shielding plate, the cable connecting part is arranged on the first shielding sheet, the end of the first shielding sheet close to the adapter plate is provided with an embedding part, the adapter plate is provided with an embedding hole, and the embedding part is embedded into the embedding hole of the adapter plate to fix the first shielding sheet and the adapter plate in electrically conductive contact.

[0019] Beneficial effects: By arranging the first shielding sheet at the periphery of the contact, and fixing the first shielding sheet and the shielding plate on the two sides of the adapter plate respectively, the adapter plate is used to conduct the first shielding sheet and the shielding plate, which is conducive to ensuring the shielding effect.

[0020] Further, the housing has an inner cavity, the connection module is provided with two or more, and each connection module is arranged side by side in the inner cavity of the housing.

[0021] Beneficial effects: By arranging the housing and the module shell of the connection module, the differential pair and the insulator of each connection module can be respectively installed in the mounting cavity of the module shell, modular assembly is realized, and the connection module is conveniently installed into the housing.

[0022] Further, the locking structure comprises a screw connection hole arranged on the housing, the screw connection hole is used for locking and connecting the housing and the printed board through a screw, and the housing is further provided with a guide structure used for guiding when the connector is connected with the printed board.

[0023] Beneficial effects: By screw locking, disassembly and assembly are facilitated, and the guiding effect of the guide structure is conducive to reliable connection.

[0024] The technical scheme of the connector assembly of the application is as follows:

[0025] A connector assembly comprises a printed board and a connector, the printed board is provided with signal contacts on the board surface, the connector comprises a connecting module, the connecting module comprises an insulator and a differential pair, the differential pair comprises a contact piece, the contact piece has an elastic section, the insulator is provided with a contact piece mounting hole, the contact piece is mounted in the contact piece mounting hole, one end is used for electrically connecting with a cable, the other end is used for electrically connecting with the signal contact on the printed board, and the elastic section is used for elastically deforming when the contact piece is electrically connected with the printed board to elastically contact the contact piece with the printed board.

[0026] Beneficial effects: by setting the elastic section on the contact piece of the differential pair, when the connector is connected with the printed board, the contact piece can elastically deform under the pressure of the printed board, and can form an elastic electrical connection in the connection direction, avoiding the influence of the size error in the horizontal direction perpendicular to the connection direction, and not easily affected by the error to cause poor contact, and the contact piece is not easy to wear when the connector is disassembled with the printed board, which is conducive to reliable contact.

[0027] Further, the contact piece comprises a hair button, and the hair button constitutes the elastic section of the contact piece.

[0028] Beneficial effects: the two hair buttons arranged in pairs are used as a differential pair to transmit differential signals, so that the elastic characteristics of the hair buttons are utilized to form an elastic electrical connection, and the contact is reliable.

[0029] Further, the connecting module further comprises a cable, the end of the cable is provided with a terminal, the contact piece mounting hole is a hair button mounting hole, the hair button has a wiring end located in the hair button mounting hole, and the terminal extends into the hair button mounting hole to electrically connect with the wiring end of the hair button.

[0030] Beneficial effects: when the hair button is compressed, the terminal extending into the hair button mounting hole can reliably contact the hair button.

[0031] Further, the connecting module further comprises a shielding assembly arranged outside the differential pair, the shielding assembly comprises a cable connecting portion and a printed board connecting portion, the cable connecting portion is used for electrically connecting with the cable shielding, and the printed board connecting portion is an elastic portion, and the elastic portion is used for elastically pressing and contacting a grounding contact on the printed board.

[0032] Beneficial effects: the elastic portion elastically presses and contacts the grounding contact on the printed board to realize shielding conduction, and the signal conduction and the grounding conduction both form elastic electrical contact, which is conducive to ensuring good contact.

[0033] Further, the shielding assembly comprises a shielding plate, the connector has a connection end used for connecting with the printed board, the shielding plate is arranged at the connection end of the connector, the shielding plate is provided with a grounding spring plate protruding therefrom, the grounding spring plate constitutes the elastic portion, and the grounding spring plate is used for electrically contacting the grounding contact on the printed board.

[0034] Beneficial effects: By setting a shielding plate at the docking end, the ground spring on the shielding plate is connected with the ground contact on the printed board, which helps to improve the shielding effect between the differential pair and the printed board.

[0035] Further, the shielding assembly further comprises an adapter plate, the adapter plate is arranged on the side of the shielding plate away from the ground spring, the shielding plate is provided with a fixing protrusion, the adapter plate is provided with a fixing hole, and the fixing protrusion is inserted into the fixing hole to fix and electrically connect the shielding plate and the adapter plate.

[0036] Beneficial effects: By arranging the adapter plate on one side of the shielding plate and inserting the fixing protrusion on the shielding plate into the fixing hole on the adapter plate, the gap at the connection is small. After the shielding plate is processed by blanking to form a gap on the surface of the ground spring, the adapter plate can cover the gap to ensure the shielding effect.

[0037] Further, the shielding assembly further comprises a first shielding sheet, the first shielding sheet is arranged at the periphery of the contact and on the side of the adapter plate away from the shielding plate, the cable connecting part is arranged on the first shielding sheet, the end of the first shielding sheet close to the adapter plate is provided with an embedding part, the adapter plate is provided with an embedding hole, and the embedding part is embedded into the embedding hole of the adapter plate to fix and electrically connect the first shielding sheet and the adapter plate.

[0038] Beneficial effects: By arranging the first shielding sheet at the periphery of the contact and fixing the first shielding sheet and the shielding plate on the two sides of the adapter plate respectively, the adapter plate is used to connect the first shielding sheet and the shielding plate, which helps to ensure the shielding effect.

[0039] Further, the housing has an inner cavity, and the connecting module comprises two or more module housings, each module housing is provided with two or more mounting cavities, and each mounting cavity is mounted with an insulator and a differential pair.

[0040] Beneficial effects: By arranging the housing and the module housing of the connecting module, the differential pair and the insulator of each connecting module can be respectively mounted in the mounting cavities of the module housing, which realizes modular assembly and facilitates the installation of the connecting module into the housing.

[0041] Further, the locking structure comprises a screw connection hole arranged on the housing, the screw connection hole is used to lock and connect the housing and the printed board by a screw, and the housing is further provided with a guide structure used for guiding when the connector is docked with the printed board.

[0042] Beneficial effects: By screw locking, it is convenient to disassemble and assemble, and the guide structure is used for guiding, which helps to connect reliably. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1Structure schematic diagram of connector assembly of the present application;

[0044] Figure 2 Structure schematic diagram of the connector assembly of the present application; Figure 1 Structure schematic diagram of the connector assembly of the present application;

[0045] Figure 3 Structure schematic diagram of the connector assembly of the present application; Figure 1 Structure schematic diagram of the connector assembly of the present application;

[0046] Figure 4 Structure schematic diagram of the connector assembly of the present application; Figure 3 Structure schematic diagram of the connector assembly of the present application;

[0047] Figure 5 Structure schematic diagram of the connector assembly of the present application;

[0048] Figure 6 Structure schematic diagram of the connector assembly of the present application;

[0049] Figure 7 Structure schematic diagram of the connector assembly of the present application;

[0050] Figure 8 Structure schematic diagram of the connector assembly of the present application;

[0051] Figure 9 Structure schematic diagram of the connector assembly of the present application;

[0052] Figure 10 Structure schematic diagram of the connector assembly of the present application; Figure 4 Structure schematic diagram of the connector assembly of the present application;

[0053] Figure 11 Structure schematic diagram of the connector assembly of the present application; Figure 3 Structure schematic diagram of the connector assembly of the present application;

[0054] Figure 12 Structure schematic diagram of the connector assembly of the present application; Figure 1 Structure schematic diagram of the connector assembly of the present application;

[0055] Figure 13 Structure schematic diagram of the connector assembly of the present application; Figure 1 Structure schematic diagram of the connector assembly of the present application;

[0056] Figure 14 Structure schematic diagram of the connector assembly of the present application; Figure 4 Structure schematic diagram of the connector assembly of the present application;

[0057] Figure 15 Structure schematic diagram of the connector assembly of the present application;

[0058] Figure 16 Structure schematic diagram of the connector assembly of the present application;

[0059] Figure 17 Structure schematic diagram of the connector assembly of the present application;

[0060] Figure 18 Structure diagram of the adapter plate.

[0061] In the figure: 1, housing; 11, lug; 12, insert nut; 13, guide post; 2, module housing; 3, cable; 31, terminal; 4, printed board; 41, screw hole; 42, guide hole; 43, ground contact; 44, signal contact; 5, screw; 6, shielding board; 61, avoidance via; 62, ground spring; 63, fixing protrusion; 7, fixing cap; 8, adapter plate; 81, avoidance hole; 82, embedding hole; 83, fixing hole; 9, insulator; 91, screw mounting hole; 92, air slot; 93, avoidance slot; 10, screw; 101, first shielding sheet; 1011, first protrusion; 1012, contact spring arm; 102, second shielding sheet; 1021, second protrusion; 1022, fixing claw; 103, shielding ring; 104, support body. DETAILED DESCRIPTION

[0062] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application, i.e., the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0063] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0064] It should be noted that the relationship terms such as "first" and "second" and the like that may appear in the specific embodiments of the present application are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms such as "include", "contain" or any other variants that may appear are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the elements defined by the possible appearing statements "include a" and the like do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0065] In the description of the present application, unless explicitly defined and limited otherwise, the terms "mounting", "connected", "connection" can be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or integral connection; can be mechanical connection, can be electrical connection; can be direct connection, or indirect connection through intermediate medium, or can be internal communication of 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.

[0066] In the description of the present application, unless explicitly defined and limited otherwise, the term "provided with" can be understood in a broad sense, for example, the object of "provided with" can be part of the body, or arranged separately from the body and connected to the body, which can be detachable connection or non-detachable connection. 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.

[0067] The present application is further described in detail below in combination with embodiments.

[0068] Embodiment 1 of the connector assembly of the present application:

[0069] As shown in Figure 1 , Figure 2 , the connector assembly comprises a connector and a printed board 4, the connector comprises a shell 1 and a plurality of connection modules, the shell 1 has an inner cavity extending through up and down, the connection modules are arranged side by side in the inner cavity of the shell 1 along the front and back direction, a plurality of module mounting positions are arranged in the inner cavity of the shell 1 along the front and back direction, the module mounting positions correspond to the connection modules one by one for mounting the connection modules, the connection module comprises a cable 3, a module shell 2 and a pin and socket assembly, the pin and socket assembly comprises an insulator 9, a pin 10 and a fixing cap 7, the same pin and socket assembly has two pins 10 and two fixing caps 7, the pin 10 and the fixing cap 7 correspond to each other to form a contact piece, the two pins 10 and the two fixing caps 7 of the same pin and socket assembly constitute a differential pair, one differential pair comprises two contact pieces, the pin and socket assemblies of the same connection module are four, the module shell 2 is provided with mounting cavities, the mounting cavities correspond to the pin and socket assemblies one by one, the pin and socket assemblies are mounted in the mounting cavities, the mounting cavities are arranged in the left and right direction to allow the pin and socket assemblies of the same connection module to be arranged side by side on the module shell 2 along the left and right direction, the cable 3 corresponds to the pin and socket assembly one by one, the cable 3 extends into the mounting cavity and is in conductive connection with the pin 10.

[0070] As shown in Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 ,Figure 10 , Figure 11 As shown, the end of the cable 3 is provided with a terminal 31, which is soldered to the signal line of the cable 3 and electrically connected to the upper end of the button 10. The upper end of the button constitutes the terminal of the button.

[0071] The insulator 9 has vertically extending button mounting holes 91. The buttons 10 are installed in the button mounting holes 91, with the upper end of the buttons 10 located inside the button mounting holes 91. Each insulator 9 has two button mounting holes 91 for two buttons 10 to be installed in pairs on the insulator 9. The two buttons 10 installed in pairs can form a differential pair to transmit differential signals. Correspondingly, the end of the cable 3 has two terminals 31. The two terminals 31 respectively connect the signal line to the corresponding button 10, and the terminals 31 extend into the button mounting holes 91 to connect with the buttons 10.

[0072] A fixing cap 7 is provided below the button 10. The button forms the elastic segment of the contact element, while the fixing cap is a rigid body. The fixing cap 7 is a stepped column, including a large-diameter segment and a small-diameter segment distributed vertically. The outer diameter of the large-diameter segment is larger than that of the small-diameter segment. The large-diameter segment is used to press against the lower end of the button 10 to compress it. The button mounting hole 91 has a large-hole segment and a small-hole segment distributed vertically. The diameter of the large-hole segment is larger than that of the small-hole segment. The button 10 is located in the large-hole segment. The transition between the large-hole segment and the small-hole segment forms an upward-facing stop surface. The large-diameter segment of the fixing cap 7 is supported on the stop surface. The small-diameter segment of the fixing cap 7 passes through the small-hole segment and extends downward from the small-hole segment of the button mounting hole 91. The lower end face of the small-hole segment of the fixing cap 7 is used for conductive contact with the printed circuit board 4 to achieve conductive connection between the lower end of the button 10 and the printed circuit board 4.

[0073] The hole wall surface of the large hole section of the hair button mounting hole 91 is provided with an air groove 92 extending upward and downward, the air groove 92 has an inner groove opening on the hole wall surface of the large hole section of the hair button mounting hole 91, the inner groove opening of the air groove 92 faces the central axis of the hair button mounting hole 91, the air groove 92 extends upward to the upper end surface of the insulator 9 and extends downward to the stop surface, the side wall surface of the air groove 92 is circularly transitioned with the hole wall surface of the hair button mounting hole 91, the groove bottom surface of the air groove 92 is an arc surface, and the groove bottom surface is circularly transitioned with the side wall surface. The two hair button mounting holes 91 on the same insulator 9 are arranged side by side, and there are four air grooves 92 uniformly distributed in the circumferential direction of the hair button mounting hole 91, and the four air grooves 92 arranged at the same hair button mounting hole 91 are respectively located in the front, rear, left and right four directions of the hair button mounting hole 91. The length direction of the air groove 92 is the upward and downward direction, the width direction of the air groove is perpendicular to the length direction, the width of the inner groove opening of the air groove 92 is smaller than the radial dimension of the hair button 10, so that when the hair button 10 is compressed and top-pressed with the hole wall surface of the hair button mounting hole 91, the hair button 10 will not fill the space in the air groove 92, the space in the air groove 92 is not occupied to form an air gap, so that the hair button 10 and the insulator 9 are kept apart by an air gap around the hair button 10, the electromagnetic wave can be conducted through the air gap around the hair button 10, and the dielectric constant of air is smaller than that of the insulator 9, so that the signal loss can be reduced.

[0074] For the two hair button mounting holes 91 on the same insulator 9, the left and right two hair button mounting holes 91 are communicated with each other, and the large hole section and the small hole section are also communicated with each other. The communication space between the left and right two large hole sections forms a communication cavity, and the upper cavity opening of the communication cavity is provided with an upward step surface. The part of the communication cavity close to the left hair button mounting hole 91 is used to form the air groove 92 in the right direction at the left hair button mounting hole 91, and the part of the communication cavity close to the right hair button mounting hole 91 is used to form the air groove 92 in the left direction at the right hair button mounting hole 91. That is, the air groove 92 in the right direction at the left hair button mounting hole 91 and the air groove 92 in the left direction at the right hair button mounting hole 91 are left and right through, which is beneficial to increase the air gap. Moreover, the small hole sections of the two hair button mounting holes 91 on the same insulator 9 are left and right through, the communication space between the left and right two small hole sections is up and down through with the communication space between the left and right two large hole sections, so that the air gap can be increased. Since the width of the end portion of the terminal 31 used for abutting with the hair button 10 in the left and right directions is wide, the upper end groove wall of the air groove 92 in the left direction at the left hair button mounting hole 91 and the upper end groove wall of the air groove 92 in the right direction at the right hair button mounting hole 91 are respectively provided with an avoiding groove 93 to avoid the abutting of the terminal 31 extending into the hair button mounting hole with the hair button 10.

[0075] The connection module also includes a first shielding plate 101 and a second shielding plate 102. Each mounting cavity is equipped with a first shielding plate 101. One side of the mounting cavity in the front-back direction is an open structure. The first shielding plate 101 is U-shaped and has a U-shaped opening facing the same direction as the opening on one side of the mounting cavity. The second shielding plate 102 is flat and covers the U-shaped opening of each first shielding plate 101. The first shielding plate and the second shielding plate form a shielding cavity. The end of the cable extends into the shielding cavity. The terminal 31 is located in the shielding cavity. The upper end of the insulator 9 is located in the shielding cavity. The upper end of the button 10 is located in the shielding cavity. Thus, shielding and isolation are formed around the soldered connection between the signal line and the terminal of the cable and around the pressing contact between the terminal and the button.

[0076] A shielding ring 103 is provided at one end of the cable that extends into the shielding cavity. The shielding ring 103 is clamped around the outer periphery of the cable's shielding layer, and the cable's shielding layer constitutes cable shielding. Contact spring arms 1012 are provided on the left and right sides of the upper end of the first shielding plate 101. The contact spring arms 1012 are bent toward the cavity space of the shielding cavity so as to form a top pressure contact with the shielding ring 103.

[0077] The first shielding plate 101 has a protrusion at the edge of the U-shaped opening, and the second shielding plate 102 has a through hole. The protrusion and the through hole are matched and the through hole allows the protrusion to be inserted with interference fit.

[0078] A support body 104 is provided inside the shielding cavity. The support body 104 spans the left and right side walls of the first shielding sheet. The support body 104 is provided with through holes for the terminal 31 to pass through. The support body 104 is used to support the terminal 31 so that the terminal is suspended inside the shielding cavity.

[0079] The second shielding plate 102 has fixing claws 1022 at its left and right ends respectively. The module housing 2 has fixing slots. The fixing claws 1022 are inserted into the fixing slots to fix the second shielding plate 102 on one side of the module housing 2 in the front-back direction. The second shielding plate covers one side of the first shielding plate. The upper end of the second shielding plate 102 has a spring arm, which is used to press against the shielding ring 103 to ensure reliable shielding conduction.

[0080] The lower end of the first shielding plate 101 is provided with a first protrusion 1011, and the lower end of the second shielding plate 102 is provided with a second protrusion 1021. Both the first protrusion 1011 and the second protrusion 1021 protrude downward from the module housing 2 to extend out of the mounting cavity.

[0081] like Figure 2 , Figure 3 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 ,Figure 16 、 Figure 17 、 Figure 18 As shown in the figures, the lower cavity opening of the inner cavity of the shell 1 is provided with an adapter plate 8 and a shielding plate 6. The adapter plate 8 is arranged at the lower cavity opening of the inner cavity of the shell 1. The lower end of the connector is a mating end. The lower end surface of the shell 1 is provided with a groove communicating with the inner cavity of the shell 1. The groove is adapted to the adapter plate 8. The shielding plate 6 is adapted in size to the adapter plate 8. The shielding plate 6 and the adapter plate 8 are installed in the groove. The adapter plate 8 is below the module shell of each connection module. The shielding plate 6 is below the adapter plate 8. The shielding plate 6 is fixed on the adapter plate 8. The adapter plate 8 covers each connection module. The upper plate surface of the adapter plate 8 is connected with the lower end surface of the module shell 2. The insulator 9 is a stepped structure including a thicker upper part and a thinner lower part. The upper part of the insulator 9 is in the installation cavity of the module shell 2 and above the upper plate surface of the adapter plate 8. The lower part of the insulator 9 passes downward through the adapter plate 8 and the shielding plate 6.

[0082] The adapter plate 8 is provided with an avoiding perforation 81, an embedding hole 82 and a fixing hole 83. The avoiding perforation 81 is adapted in shape to the lower part of the insulator 9 for the lower part of the insulator 9 to pass downward. The fixing hole 83 is used for fixing the shielding plate 6. The adapter plate 8 can conduct electricity. The adapter plate 8 is made of plastic coated with conductive coating. The first protrusion 1011 at the lower end of the first shielding sheet 101 and the second protrusion 1021 at the lower end of the second shielding sheet 102 are respectively embedded in the corresponding embedding hole 82. The first protrusion 1011 constitutes an embedded part on the first shielding sheet. The second protrusion 1021 constitutes an embedded part on the second shielding sheet. In this way, the first shielding sheet and the adapter plate are fixed and in conductive contact. The second shielding sheet and the adapter plate are fixed and in conductive contact.

[0083] The shielding plate 6 covers each of the pin headers 10, and the shielding plate 6 is provided with an avoiding through hole 61, a grounding spring 62, and a fixing protrusion 63. The avoiding through hole 61 is shaped to match the lower part of the insulator 9 so that the lower part of the insulator 9 can pass through the avoiding through hole 61. The fixing protrusion 63 is integrally formed on the shielding plate 6. The fixing protrusion 63 is in an L shape, including a horizontal part and a vertical part. One end of the horizontal part is integrally connected to the main body of the shielding plate 6, and the other end is connected to the vertical part. The vertical part protrudes upward. The vertical part of the fixing protrusion 63 is inserted into the fixing hole 83 to fix the shielding plate 6 to the adapter plate 8. The horizontal part forms a cantilever, and the fixing protrusion 63 has a certain elasticity, so that the shielding plate 6 can be in elastic contact with the adapter plate 8. The grounding spring 62 is integrally formed on the shielding plate 6. The grounding spring 62 is in a cantilever structure and is formed by blanking. The grounding spring 62 bends downward based on the main body of the shielding plate 6, and forms an inclined elastic cantilever structure. The grounding spring 62 constitutes an elastic part. The grounding spring 62 protrudes downward from the lower surface of the shielding plate 6. The grounding spring 62 has a downward grounding contact surface, and is used to be in elastic contact with the printed board 4. The grounding spring 62 and the fixing protrusion 63 are arranged on the side of each avoiding through hole 61 to meet the shielding and fixing requirements.

[0084] Since the grounding spring 62 on the shielding plate 6 is formed by blanking, there is a gap at the position of the grounding spring 62. The gap affects the shielding effect. Therefore, the adapter plate is arranged on the upper side of the shielding plate 6 to cover the gap, so as to ensure the shielding effect.

[0085] The printed board 4 is provided with a screw through hole 41, a guide hole 42, a grounding contact 43, and a signal contact 44. The signal contacts 44 are arranged in pairs. Each pair of signal contacts 44 is arranged on the upper surface of the printed board 4. The signal contacts 44 are used to be in contact with the fixing cap 7 of the pin header assembly to realize signal conduction. The shielding plate shields the connection part of the fixing cap and the signal contact. The grounding contact 43 is used to be in contact with the grounding spring 62 of the shielding plate 6 to realize shielding conduction through the shielding plate, the adapter plate, the shielding sheet, and the shielding layer of the cable. The signal contact and the grounding contact are both copper protrusions on the surface of the printed board.

[0086] The first shielding sheet 101, the second shielding sheet 102, the adapter plate 8, and the shielding plate 6 jointly constitute a shielding assembly. The contact spring arm 1012 on the first shielding sheet 101 constitutes a cable connection part of the shielding assembly. The grounding spring 62 arranged on the shielding plate 6 constitutes a printed board connection part of the shielding assembly.

[0087] The housing 1 is provided with two protrusions 11 on the front and back sides, respectively, and the protrusions 11 are provided with insert nuts 12, the nut holes of the insert nuts 12 form screw connection holes, the screw connection holes correspond to the screw through holes 41 on the printed board 4 to lock and connect the housing 1 and the printed board 4 through the screws 5, and the lower end surface of the housing 1 is further provided with a downwardly extending guide column 13, the guide column 13 forms a guide structure, and the guide column 13 is used for guiding insertion into the guide hole 42 to play a guiding role when the connector is connected with the printed board 4.

[0088] When the connector is connected with the printed board 4, the part of the small hole section of the downwardly extending button head mounting hole 91 of the fixed cap 7 is in top pressing contact with the signal contact 44 on the printed board 4, the signal contact 44 top presses the fixed cap 7 to make the fixed cap 7 move upward, and then compresses the button head 10, the button head 10 is compressed and deformed to expand radially, and the upper end of the button head 10 is in top pressing contact with the terminal 31, so that the signal conduction is realized; at the same time, the grounding spring sheet 62 of the shielding plate 6 is in top pressing contact with the grounding contact 43 on the printed board 4, so that the shielding conduction is realized.

[0089] In this way, the two button heads arranged in pairs are used as a differential pair to transmit differential signals, the elastic characteristics of the button heads are used to form top and bottom pressing contact with the signal contacts on the printed board, the grounding spring sheet is used to form top and bottom pressing contact with the grounding contacts on the printed board, so that the signal connection and the shielding connection are both formed into elastic conductive connection in the up and down directions, and the up and down contact can be ensured, the machining error can be controlled, the influence of the horizontal direction size error can be avoided, the contact failure caused by the error is not easy to occur, at the same time, the locking structure is matched, the connection between the connector and the printed board is reliable, the contact part is not easy to wear, and the contact reliability is beneficial.

[0090] Embodiment 2 of the connector assembly of the application:

[0091] The difference between this embodiment and embodiment 1 is that in embodiment 1, the first shielding sheet, the second shielding sheet and the adapter plate are in conductive contact, the shielding plate and the adapter plate are in conductive contact, and the first shielding sheet realizes conductive connection with the shielding plate through the conductive adapter plate. In this embodiment, the adapter plate is not provided, and the embedded parts on the first shielding sheet and the second shielding sheet are inserted into the matching holes in the shielding plate in an interference fit, so that the first shielding sheet and the second shielding sheet are directly in conductive contact with the shielding plate.

[0092] Embodiment 3 of the connector assembly of the application:

[0093] The difference between the embodiment and the embodiment 1 is that, in the embodiment 1, the lower side of the pogo pin is provided with a fixing cap, and the lower end of the pogo pin is conductively connected with the signal contact on the printed board through the fixing cap. In the embodiment, the lower end surface of the pogo pin is used to directly conductively contact with the signal contact on the printed board, and the pogo pin is interference fitted in the pogo pin mounting hole to realize fixation.

[0094] Embodiment 4 of the connector assembly of the application:

[0095] The difference between the embodiment and the embodiment 1 is that, in the embodiment 1, the first shielding sheet, the second shielding sheet, the adapter plate and the shielding plate jointly form a shielding assembly, and the grounding spring sheet is arranged on the shielding plate. In the embodiment, the first shielding sheet and the second shielding sheet form a shielding assembly, the lower end of the first shielding sheet and the second shielding sheet is respectively provided with a grounding spring sheet, the grounding spring sheet is obliquely extended downward, and is obliquely toward one side of the left and right directions of the connection module, the lower end of the grounding spring sheet is provided with a bending part, the bending part has a downward grounding contact surface to form an elastic pressing contact with the grounding contact on the printed board.

[0096] Embodiment 5 of the connector assembly of the application:

[0097] The difference between the embodiment and the embodiment 1 is that, in the embodiment 1, the pogo pin forms the elastic section of the contact piece. In the embodiment, the contact piece is an L-shaped sheet, which includes a vertical part and a horizontal part, the vertical part is fixed in the insulator, the horizontal part is suspended on one side of the insulator, and the end of the horizontal part away from the vertical part is provided with a protrusion, which is used to elastically press contact with the signal contact on the printed board. In other embodiments, the elastic section can also be formed by a spiral spring.

[0098] Embodiment of the connector of the application:

[0099] The structure of the connector in the embodiment is the same as the connector structure described in any one of the embodiments 1-5 of the above connector assembly, which will not be described here.

[0100] Finally, it should be noted that the above description is only for the preferred embodiments of the application, and is not used to limit the application, although the application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified without creative labor, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A connector comprising a connection module, the connection module including an insulator (9) and a differential pair, the differential pair including contacts, characterized in that, The contact includes a button. The insulator (9) has a button mounting hole. The contact is installed in the button mounting hole. One end is used to make a conductive connection with the cable (3), and the other end is used to make a conductive connection with the signal contact (44) on the printed circuit board (4). The button is used to make elastic deformation when the contact is made conductively connected to the printed circuit board (4) so ​​that the contact is in elastic contact with the printed circuit board (4). An air groove is provided on the hole wall of the button mounting hole. When the button is compressed and presses against the hole wall of the button mounting hole, the air groove keeps an air gap between the button and the insulator around the button. There are two button mounting holes on the insulator. A connecting cavity is provided between the two button mounting holes to make them communicate with each other. The part of the connecting cavity near the button mounting hole is used to form an air groove at the corresponding button mounting hole.

2. The connector according to claim 1, characterized in that, The connection module also includes a cable (3), the end of which is provided with a terminal (31), and the button (10) has a terminal located in the button mounting hole (91), the terminal (31) extending into the button mounting hole (91) to electrically connect with the terminal of the button (10).

3. The connector according to claim 1 or 2, characterized in that, The connection module also includes a shielding component disposed on the periphery of the differential pair. The shielding component includes a cable connection part and a printed circuit board connection part. The cable connection part is used to shield and conduct electricity with the cable (3). The printed circuit board connection part is an elastic part, which is used to elastically press against the grounding contact (43) on the printed circuit board (4).

4. The connector according to claim 3, characterized in that, The shielding assembly includes a shielding plate (6), and the connector has a mating end for mating with the printed circuit board (4). The shielding plate (6) is disposed on the mating end of the connector. A grounding spring (62) is protruding on the shielding plate (6). The grounding spring (62) forms an elastic part and is used to make conductive contact with the grounding contact (43) on the printed circuit board (4).

5. The connector according to claim 4, characterized in that, The shielding assembly also includes an adapter plate (8), which is disposed on the side of the shielding plate (6) facing away from the grounding spring (62). The shielding plate (6) is provided with a fixing protrusion (63), and the adapter plate (8) is provided with a fixing hole (83). The fixing protrusion (63) is inserted into the fixing hole (83) to fix the shielding plate (6) and the adapter plate (8) and make conductive contact.

6. The connector according to claim 5, characterized in that, The shielding assembly also includes a first shielding plate (101), which is located on the periphery of the contact and on the side of the adapter plate (8) facing away from the shielding plate (6). The cable connection part is disposed on the first shielding plate (101). The end of the first shielding plate (101) near the adapter plate (8) is provided with an insert part. The adapter plate (8) is provided with an embedding hole (82). The insert part is embedded in the embedding hole (82) of the adapter plate (8) so that the first shielding plate (101) is fixed and makes conductive contact with the adapter plate (8).

7. The connector according to claim 1 or 2, characterized in that, It also includes a housing (1), which has an inner cavity. There are two or more connecting modules, and each connecting module is arranged side by side in the inner cavity of the housing (1). The connecting module also includes a module housing (2), which has two or more mounting cavities. Each mounting cavity is equipped with an insulator (9) and a differential pair.

8. The connector according to claim 7, characterized in that, It also includes a locking structure, which includes a screw connection hole provided on the housing (1), the screw connection hole being used to lock the housing (1) and the printed circuit board (4) together by screws (5), and the housing (1) is also provided with a guide structure for guiding the connector when it docks with the printed circuit board (4).

9. A connector assembly comprising a printed circuit board (4) and a connector, characterized in that, The printed circuit board (4) has signal contacts (44) on its surface, and the connector is the connector described in any one of claims 1-8.

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