CN113422232A - Terminal mounting structure, cable connector and connector assembly - Google Patents

Abstract

The invention relates to a terminal mounting structure, a cable connector and a connector assembly, wherein the terminal mounting structure comprises: an insulator base (51); terminal assemblies mounted in the insulator block in rows, each terminal assembly including a pair of signal terminals (61) and ground terminals (62), the pair of signal terminals forming a differential signal pair (63), the differential signal pair (63) being disposed between the ground terminals (62); one end of the terminal assembly, which extends out of the insulator seat, is an elastic contact area (601), and the other end of the terminal assembly is a wiring area (603) connected with the cable; the insulator base (51) is provided with at least two rows of terminal assemblies at intervals in the front-rear direction. By means of the technical scheme, the terminals are arranged in rows and are respectively assembled on the front row and the rear row of the insulator seat, high-speed transmission performance is improved, and meanwhile the size of the connector can be effectively reduced.

Description

Terminal mounting structure, cable connector and connector assembly

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a terminal mounting structure, a cable connector and a connector assembly.

Background

With the continuous development of data transmission technology, high-speed connector assemblies with high speed and high density are increasingly required, and with the continuous deepening of market competition, low cost and high reliability are also the most important points. At present, high-speed cable connectors in the market have low integration degree, internal terminal distribution forms are not compact enough, so that the terminal installation quantity is limited, the transmission speed is low, the transmission performance cannot meet the requirement of high-speed performance, and the connector is overlarge in size if the requirement of the high-speed performance is met.

Disclosure of Invention

In order to solve the problems of the prior art, the invention provides a terminal mounting structure, wherein terminals are arranged in rows and are respectively assembled on the front row and the rear row of an insulator seat, so that the size of a connector can be effectively reduced while the high-speed transmission performance is improved.

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the present invention, there is provided a terminal mounting structure comprising:

an insulator seat;

terminal assemblies mounted in the insulator block in rows, each terminal assembly including a pair of signal terminals and ground terminals, the pair of signal terminals forming a differential signal pair, the differential signal pair being disposed between the ground terminals; one end of the terminal assembly, which extends out of the insulator seat, is an elastic contact area, and the other end of the terminal assembly is a wiring area connected with the cable. The elastic contact area is a plug-in end and is used for being in contact conduction with the adaptive connector, the adaptive connector is a PCB assembly, and the elastic contact area is specifically in elastic fit with a copper foil contact on the surface of a PCB in the PCB assembly.

Furthermore, at least two rows of terminal assemblies are arranged on the insulator seat at intervals in the front-back direction, so that the size of the connector in the width direction is reduced on the premise that a sufficient number of terminal assemblies are guaranteed to transmit high-speed signals.

Further, the terminal assembly located in the front row and the terminal assembly located in the rear row are arranged in a staggered manner in the height direction of the insulator base.

Further, the front row of terminal assemblies are disposed at a greater height than the rear row of terminal assemblies. Preferably, the terminal assemblies in the front row differ from the terminal assemblies in the rear row by 1/2 to 1 times the cable thickness in the insulator seat height direction.

Furthermore, the terminal assembly located in the front row and the terminal assembly located in the rear row are arranged in a staggered manner in the width direction of the insulator seat.

Furthermore, the displacement amount of the terminal assembly positioned in the front row and the terminal assembly positioned in the rear row in the width direction of the insulator seat is less than one time of the width of the terminal assembly.

Further, the terminal assemblies in the front row differ from the terminal assemblies in the rear row by 1/2 to 1 times the cable width in the insulator seat width direction.

Further, the terminal block length on the rear row terminal assembly is set to L1, and the terminal block length on the front row terminal assembly is set to L2, then the difference L between the terminal block lengths of the front/rear two row terminal assemblies is L1-L2; the difference of the front/back two rows of terminal assemblies in the height direction is H, and L is H, so that the front and back rows of terminals can share one set of die to carry out mass production, the production efficiency is improved, and the production cost is reduced.

Furthermore, each cable is welded with one terminal assembly, each cable comprises two ground wires and two signal wires, the ground wires are respectively connected with the two ground terminals in a one-to-one correspondence mode, and the signal wires are respectively connected with the two signal terminals in the differential signal pairs in a one-to-one correspondence mode.

Furthermore, the insulator seat is provided with a process empty groove which is arranged below the wiring area so as to facilitate the welding of the cable and the terminal assembly.

Furthermore, the terminal assembly between the wiring area and the elastic contact area is an assembly maintaining area, and the assembly maintaining area is in interference fit with the insulator seat.

Furthermore, the insulator seat is provided with a mounting hole which is arranged in a penetrating manner along the vertical direction, and the mounting hole is fixedly matched with the assembly holding area so as to realize the mounting and positioning of the terminal assembly.

Further, the cables connected to the terminal assembly located in the front row and the cables connected to the terminal assembly located in the rear row are collectively discharged from the rear end of the insulator base, specifically, arranged in a row in the width direction, to be discharged.

Furthermore, the rear end of the insulator seat is provided with a row of outgoing line guide grooves along the width direction, and each outgoing line guide groove is used for accommodating one cable, so that all cables can be orderly arranged and outgoing lines can be realized.

The invention also provides a cable connector comprising the terminal mounting structure.

The invention further provides a connector assembly, which comprises a cable connector and an adaptive connector which is adaptively plugged with the cable connector, wherein the cable connector comprises any terminal mounting structure, and the adaptive connector is a PCB assembly in the invention.

The invention has the beneficial effects that:

1. the terminal assemblies are arrayed in rows, the front row and the rear row of the insulator seat are respectively arranged in the insulator seat, two rows of terminal assemblies are formed in the plugging direction, the difference between the two rows of terminal assemblies in the height direction of the insulator seat is 1/2-1 time of cable thickness, and the difference between the two rows of terminal assemblies in the width direction of the insulator seat is 1/2-1 time of cable width, so that the minimum overall dimension of the connector is guaranteed under the conditions that the front cable and the rear cable are not overlapped and interfered, and the cables and the metal terminals are not interfered.

2. The front row of terminals and the rear row of terminals are completely the same before assembly and bending, the bending points are slightly adjusted during bending, and the length of the terminal wiring area positioned on the rear row, which is longer than the wiring area positioned on the front row, is the same as the difference value of the terminals on the front row and the rear row in the height direction, so that a set of die can be saved, and an automatic assembly line can be simplified.

3. The cables connected with the front row of terminal assemblies and the cables connected with the rear row of terminal assemblies are uniformly led out from the tail end of the insulator seat, the tail end parts of the cables are uniformly led out from the insulator seat side by side, and the cables and the metal terminals are installed in a staggered and arranged mode to achieve high density and small size of the connector.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of the overall construction of the connector assembly of the present invention.

Fig. 2 is an exploded view of the PCB assembly.

Fig. 3 is a schematic diagram of the cable connector before being inserted into the PCB assembly.

Fig. 4 is a schematic view of a cable connector.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is an exploded view of the cable connector.

Fig. 7 is a schematic view of the structure before the terminal region of the terminal is bent.

Fig. 8 is a schematic view of the structure of the insulator seat.

Fig. 9 is an enlarged view of a portion B in fig. 8.

Fig. 10 is a schematic view of the structure of the terminal after it is mounted on the insulator seat.

Fig. 11 is a schematic view of the insulator base after the terminal is mounted.

Fig. 12 is an enlarged view of a portion C in fig. 11.

Fig. 13 is a schematic view of the mating of the mounting retention area of the terminal with the mounting hole.

Fig. 14 is an enlarged view of a portion D in fig. 13.

Fig. 15 is a schematic view of the misalignment distribution of the terminal assemblies of the front row and the terminal assemblies of the rear row in the width direction of the insulator seat.

Fig. 16 is a schematic view of the misalignment distribution of the terminal assemblies of the front row and the terminal assemblies of the rear row in the height direction of the insulator seat.

Fig. 17 is a schematic view of the terminal assembly after soldering with the corresponding cable.

Fig. 18 is a perspective view of the shielding module.

Fig. 19 is an exploded view of the shielding module.

Fig. 20 is a snap-fit schematic of the shielding module.

Fig. 21 is a schematic view of the mating of the shield module with the terminal.

Detailed Description

The following detailed description is to be read in connection with the drawings and the preferred embodiments.

An embodiment of a connector assembly, as shown in fig. 1 to 21, the connector assembly includes a cable connector 1 and two PCB assemblies 2, the cable connector 1 includes a plurality of cables 3 and connectors 4 connected to two ends of the cables 3, the connectors 4 include a connector housing 5 and terminals 6 mounted in the connector housing 5; PCB subassembly 2 includes PCB board 7 and locates frame 8 on the PCB board, encloses into a confession between the PCB board surface at frame and place rather than and corresponds the male jack structure of connector, and connector 4 inserts respectively in the frame 8 that corresponds, can make the interior terminal of connector and PCB board electric contact switch on to realize the interconnection between two PCB boards.

Regard as the fore-and-aft direction with the plug direction of connector, frame 8 is the metal frame of welding on the PCB board, the frame is rectangle frame rack structure, as shown in fig. 2, the lower extreme and the front end of frame are opened, the front end of frame is as supplying connector male socket, both ends and rear end set up a plurality of towards the convex welding pin 81 of PCB board direction about frame 8, it is corresponding, set up on the PCB board 7 with welding pin looks welded weld part 71, the weld part is welding hole or pad, thereby realize the fixed mounting of frame and the electric conduction between frame and the PCB board, ground connection or shielded wire in the PCB board is connected to welding hole or pad, can make metal frame shielding ground connection and play the signal interference safeguard function to the connector. In addition, the outer frame can be provided with heat dissipation holes. In another embodiment, the outer frame may also be a non-metal outer frame, and the outer frame does not have a shielding and grounding function and only plays a role in inserting and fixing the connector.

The connector housing 5 comprises an insulator base 51 and an insulating cover plate 52 which are buckled with each other, as shown in fig. 6, the left side and the right side of the insulating cover plate 52 are symmetrically provided with buckle grooves 521, the two sides of the insulator base are correspondingly provided with buckles 511, and the quick assembly of the insulating cover plate can be realized through the buckle cooperation of the buckles 511; the insulating cover 52 covers all the terminals and the soldered ends of the cables to the terminals and serves as a seal for the connector. The terminals 6 are arranged in rows in the insulator block, the terminals in each row being arranged along the width of the insulator block. The connector shell is in a flat cuboid structure, the shape of the connector shell is matched with the outer frame, so that the inner wall of the outer frame can play a role in guiding plugging and unplugging of the connector shell in the process of plugging/unplugging the outer frame of the connector. The two sides of the insulator seat 51 are oppositely provided with latches 512, and the two sides of the outer frame are provided with locking grooves 82 which are in one-to-one corresponding buckling fit with the latches to realize the plugging and fixing of the connector. One end of the lock catch 512 is a fixed end connected with the insulator seat, the other end of the lock catch 512 is an elastic arm which extends forwards and is arranged in an overhanging manner, a locking part 5121 matched with the lock groove in the plugging and unplugging direction is convexly arranged at the front end of the elastic arm towards the outside, and the lock groove 82 is communicated with and arranged on two sides of the outer frame, so that the lock catch can be manually pressed when the connector is unlocked, and the lock catch is separated from the lock groove. When the connector is inserted in place, the locking part pops out of the locking groove and is in stop fit with the locking groove, the cantilever returns to an unstressed state, locking is achieved, and the metal outer frame plays a role in fixing and limiting the connector. When the connector is taken out and unloaded, the locking parts at the two ends of the connector are pressed, so that the locking parts are withdrawn from the locking grooves, and the connector can be unlocked and pulled out.

The terminal 6 is a sheet-type contact member, which has an elastic contact 6011 elastically attached to the copper foil contact 72 on the surface of the PCB to realize the elastic contact conduction between the connector and the corresponding PCB, so that the height of the connector can be effectively reduced, the size of the connector is reduced, and the contact stability is improved. In order to reduce the width of the connector, the terminals are arranged in at least two rows at intervals in the front-back direction of the insulator seat. In order to meet the requirement of high-speed signal transmission, the terminal 6 includes signal terminals 61 and ground terminals 62, two adjacent signal terminals form a differential signal pair 63 for transmitting high-speed differential signals, the differential signal pair is disposed between the adjacent ground terminals, therefore, in the front/rear row of terminals, four terminals are in one group and form a terminal assembly, the terminal assembly array is in one row, correspondingly, the number of cables is the same as that of the terminal assemblies, the cables 3 are double-ground wire differential cables, and each cable is welded with one terminal assembly. Referring to fig. 17, the cable core in each cable includes two ground wires 32 and two signal wires 31, the ground wires 32 are welded to the ground terminal 62, the signal wires 31 are welded to the signal terminals 61, and the terminals in each row are distributed in the form of GSSGGSSG, so that stable transmission of high-speed signals is realized.

All terminal assemblies of the front/rear rows are produced by the same die, the state after the die processing is as shown in fig. 7, all terminals in the terminal assemblies are of an integrally formed structure, the terminals comprise an elastic contact area 601, an assembly holding area 602 and a wiring area 603 which are sequentially connected, the wiring area 603 is welded with a cable 3, the assembly holding area 602 is positioned in a mounting hole 513, the mounting hole 513 is arranged in the insulator seat 51 in a penetrating manner along the vertical direction, and the elastic contact area extends out of the bottom end opening of the mounting hole so as to be in contact with a copper foil contact 72 on the surface of the PCB. As shown in fig. 14, the assembly holding area is extended in the up-down direction, and at least one side of the assembly holding area in the width direction is provided with an interference bump 6021, so that the assembly holding area and the hole wall of the mounting hole are in interference fit to realize the positioning of the terminal; further, the assembly holding area is provided with a limit projection 6022 at least on one side thereof, and the limit projection is in stop fit with the insulator seat limit face 5131 at the side of the lower end of the mounting hole in the upward direction, and plays a limit role in the mounting of the terminal. When the terminal is mounted, the terminal is inserted into the corresponding mounting hole of the insulator seat from bottom to top, the limit convex part 6022 is regarded as being inserted in place when being abutted against the limit surface 5131 of the insulator seat, and then the terminal connection area 603 of the terminal is bent by a bending jig so that the assembly holding area 602 is perpendicular to the terminal connection area 603, thereby enabling the terminal to be in the state shown in fig. 10. As shown in fig. 9, 11 and 12, the wiring area is horizontally arranged along the front-back direction after being bent, the wiring area is clamped in the insulator base, an assembling groove 514 for accommodating the wiring area is formed in the insulator base 51, convex hulls 515 are arranged on the inner walls of two sides of the assembling groove, the wiring area is clamped in the assembling groove, two sides of the wiring area are in interference fit with the convex hulls, so that terminal rebounding caused by internal stress of materials after the terminal is bent is avoided, the wiring area is prevented from being tilted upwards, the terminal after being bent is vertically limited in the insulator base, reliable terminal holding force can be provided, and stable contact conduction of the connector and a PCB is ensured.

As shown in fig. 10, the elastic contact area 601 is an overhanging elastic sheet, which is U-shaped, V-shaped, L-shaped, or the like, that is, has a bent portion, and an elastic contact 6011 is formed at a lower end of the bent portion of the elastic sheet. Preferably, as shown in fig. 16, the lower end surface of the insulator base is provided with an avoiding groove 516, and when the elastic contact region is deformed upwards by the pressure of the PCB, the avoiding groove can accommodate the elastic contact region, so that the height of the elastic contact region protruding from the lower end surface of the insulator base can be effectively reduced, thereby reducing the height of the connector and facilitating the flat design of the connector.

As shown in fig. 17, the terminal areas of each row of terminals are in the same plane, and the ends of the cables horizontally overlap the upper surface of the terminal areas, i.e., the ground wires in the cables are placed on the upper surfaces of the terminal areas of the corresponding ground terminals, and the signal wires are placed on the upper surfaces of the terminal areas of the signal terminals, and then soldering is performed. As shown in fig. 16, in order to facilitate welding, a process recess 517 is formed below the connection region of each row of terminals on the insulator base, and the process recess is used to realize welding and fixing of the cable and the connection region by using laser welding, resistance welding, hot-press welding or other processes; specifically, the ground wire and the signal wire are pressed on the upper surface of the wiring area of the corresponding terminal, and then are heated through a lower process empty groove, so that each cable core of the cable and the corresponding terminal are hot-pressed and fused into a whole; alternatively, the bonding is performed directly on the upper surface of the terminal area by any of the above bonding processes.

With reference to fig. 6, 15, and 16, the terminal in the front row is set as a metal terminal i 6001, the terminal in the rear row is set as a metal terminal ii 6002, each of the metal terminals i and ii is a set of four terminals to form a terminal assembly, and each terminal assembly is correspondingly welded with one cable.

Under the prerequisite of two row at least terminals, because the metal terminal I of front row can certainly cross the metal terminal II of back row on the projection plane with the cable when welding, if two rows of terminals are in same setting height, then the cable of being connected with metal terminal I can shelter from the welding space who occupies back row metal terminal II. And the height of the metal terminal I is set to be higher than that of the metal terminal II, so that an avoidance space is provided for the cable connected to the metal terminal I in the vertical space, and the cable connected with the front row of terminals can cross over the rear row of terminals from the upper part of the rear row of terminals. Through the design, the arrangement height of the front row of terminals is higher than that of the rear row of terminals, and preferably, the difference between the thicknesses of the cables of the metal terminals I and the metal terminals II in the height direction of the insulator seat is 1/2-1 times, so that the high-speed size minimization of the connector can be ensured, and the welding of the rear row of terminals can be facilitated. In addition, because the metal terminals I at the front row are higher than the metal terminals II at the rear row in the height direction of the insulator seat, the terminals at the lower rear row can be welded firstly and the terminals at the front row can be welded secondly during welding, so that the welding efficiency is improved and the welding procedure is simplified.

Furthermore, the front row of terminals can be set to have a certain width dislocation amount compared with the rear row of terminals, and the purpose is to make the cables connected with the metal terminals I abdicate for the welding positions of the rear row of terminal assemblies, and by setting a little abdication, the welding parts of the rear row of terminal assemblies are exposed to a little more on the vertical projection plane, so that the stability and convenience of welding and fixing are facilitated (namely, the periphery of the welding points is interfered by other cables as little as possible). Preferably, the metal terminal i and the metal terminal ii differ by 1/2 to 1 times the cable width in the insulator seat width direction. It should be noted that the effect of reducing the width dimension of the connector can be achieved as long as the displacement amount of the front and rear two rows of terminal assemblies in the width direction is less than one time the width of the terminal assemblies. It is conceivable that if two rows of terminal assemblies are provided and the number of the two rows of terminal assemblies is the same, the amount of width misalignment between the two rows of terminal assemblies is only required to be less than one time the width of the terminals, and if three rows of terminal assemblies are provided, this amount of misalignment can be set again, in short, as long as the total width of the terminal assemblies after misalignment is made smaller than the total width of only one row of terminal assemblies of the same number. By means of the staggered arrangement in the height and width directions, the connector can be guaranteed to achieve the minimum overall dimension under the condition that the cables connected with the front/rear terminals are not overlapped and interfered and the cables are not interfered with the metal terminals.

The structure and size of the metal terminal I and the metal terminal II before being assembled and bent are completely the same, and as shown in FIG. 7, the bending point is slightly adjusted during bending, so that the length of the wiring area on the rear row terminal assembly compared with the wiring area on the front row terminal assembly is the same as the difference in the height direction of the front row terminal assembly and the rear row terminal assembly. Specifically, referring to fig. 16, when the land length of the rear row metal terminal ii is L1, the land length of the front row metal terminal i is L2, and the difference between the land lengths of the front/rear row terminals is L, L is L1 to L2; the height difference of the front/rear row of terminals in the height direction of the insulator seat is set to be H, when L is H, one set of die can be saved, and an automatic assembly line is simplified.

As shown in fig. 15, the high-speed cable connected with the front row of terminals is set as a cable i 301, the high-speed cable connected with the rear row of terminals is set as a cable ii 302, the cables i and ii are uniformly led out from the tail end of the insulator seat, all the cable tail end parts are uniformly led out from the insulator seat side by side, when the cables are led out side by side, all the cables are arranged in a row along the width direction, and then the cables are combined with the metal terminals to be installed in a staggered and separated manner, so that high density, small size and industrial integrity of the connector are realized. In order to facilitate all cables to form a row of wires along the width direction, a row of wire guiding grooves 518 are arranged at the rear end of the insulator seat along the width direction. Because two rows of terminals in the front and back misplace in the left and right directions, under the condition of being led out side by side, cable I needs to be bent towards one side, in order to realize the location of cable I, the welding end of cable I still extends along the front and back direction, a cable positioning groove 519 clamped with the cable is arranged on the insulator seat, and the cable positioning groove is located at the rear end of the front row of terminals, specifically as shown in fig. 8.

In order to enable the connector to transmit signals with higher speed and improve the signal transmission environment, the invention also designs a shielding module 9 assembled in the connector, as shown in fig. 18 and 19, the shielding module comprises an injection molding body 91 and a shielding sheet 92 arranged on the injection molding body, the shielding sheet and the injection molding body are connected into a whole through an insert injection molding process, the injection molding body 91 is a cuboid structural part extending along the width direction of the insulator seat, and the upper end of the injection molding body is convexly provided with a plurality of isolation parts 911 distributed at intervals. The shield plate 92 includes a body 921 and a plurality of elastic terminals 922 connected to the body, each of the elastic terminals being a bent plate-like contact member for elastically contacting a lower surface of a land of the ground terminal. The main part extends the setting along the length direction of the injection molding body, and the elastic terminal distributes in a row in the one end of main part, and the main part is fixed in the injection molding body, and the one end of elastic terminal is the stiff end of connecting the main part, and the other end is for stretching out in the expansion end of the injection molding body, and the expansion end has the shielding contact with ground terminal's wiring district lower surface looks elasticity laminating. Two elastic terminals are arranged between adjacent isolating parts, the isolating parts are used for isolating adjacent differential signal pairs, and the two elastic terminals between the adjacent isolating parts are respectively and elastically attached to the lower surfaces of the wiring areas 603 of the two grounding terminals 62 in the same terminal component.

As shown in fig. 20, the insulator base is provided with two mounting grooves 520, the mounting grooves 520 are used for mounting the shielding module, and the two mounting grooves are respectively located below the wiring areas of the front/rear row of terminals. After the cables and the terminals are welded, the shielding module is buckled from the mounting groove formed in the bottom of the insulator seat, and after the shielding module is mounted, the lower surfaces of all the grounding terminals in each row of terminals are contacted with the corresponding elastic terminals, so that the intercommunication and interconnection of all the grounding terminals in each row are realized, the shielding effect of the cable connector is improved, and the transmission performance is improved.

The injection molding body is the plastic body, and the plastic body is electrically conductive plastic or ordinary plastic, and when being electrically conductive plastic, isolation portion has shielding ground connection's effect equally, and isolation portion will be same arrange adjacent differential signal pair in and keep apart, has further reduced the crosstalk between adjacent differential signal pair, has improved shielding effect, makes the high-speed transmission performance of connector better. When the injection molding body is ordinary plastic, then the isolated part does not have electric conductive property, and it does not play the shielding isolation effect between the terminal subassembly hardly, but the elastic terminal of being convenient for fixes a position, and the isolated part of elastic terminal side is equivalent to the fender wall this moment, can be used for keeping off the skew, skew etc. that elastic terminal probably produced in the use, plays firm keeping and limiting displacement to elastic terminal. In another embodiment of the shielding module, the shielding module may include an injection molded body and a plurality of shielding sheets, the shielding sheets are disposed in a plurality of numbers, the injection molded body is a conductive plastic body, each shielding sheet includes a main body portion having a fixing function and an elastic terminal connected with the main body portion, that is, the elastic terminals on the shielding sheets are mutually independent in mechanical structure, but since all the elastic terminals are connected to the conductive plastic body, electrical conduction of all the elastic terminals can be realized, and shielding conduction of a row of grounding terminals can be realized after the shielding sheets are mounted in the same manner.

In this embodiment, the shielding module is strongly fitted to the mounting groove, for example, a strongly fitting protrusion 912 is provided on the injection molded body. In order to facilitate the guiding assembly of the shielding module, the injection molded body is provided with a positioning table 913, the lower end surface of the insulator seat is provided with a corresponding positioning groove 521, and meanwhile, the positioning groove and the positioning table are in blocking fit in the buckling direction, so that the buckling limiting effect of the shielding module can be achieved. Because the wiring area of the front row of terminals is higher than the wiring area of the rear row of terminals in the thickness direction of the insulator seat, the height of the shielding module buckled below the front row of terminals is higher than that of the shielding module matched with the rear row of terminals. It should be noted that the mounting groove includes the above-mentioned process empty groove, that is, the mounting groove is used to solder the terminal and the cable and then the shielding module is fastened.

The connector assembly described in this embodiment can realize high-speed interconnection between two PCBs, the two PCBs may be in the same plane as shown in fig. 1, or may be arranged vertically to each other to realize orthogonal connection, or may be arranged in parallel to each other to realize interconnection between parallel boards, and the cable connector provides a flexible solution for arbitrarily setting angles and distances between the PCBs.

In other embodiments, only one row of terminals or three or more rows of terminals may be provided in the connector; only one set of terminals, i.e., two ground terminals and one differential signal pair between the two ground terminals, may be provided in each row of terminals.

The embodiment of the terminal mounting structure is the same as that of the above connector assembly, and is not described herein again.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art can make any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the present invention without departing from the scope of the present invention, and still fall within the scope of the present invention.

Claims (17)

1. Terminal mounting structure, its characterized in that includes:

an insulator base (51);

terminal assemblies mounted in the insulator block in rows, each terminal assembly including a pair of signal terminals (61) and ground terminals (62), the pair of signal terminals forming a differential signal pair (63), the differential signal pair (63) being disposed between the ground terminals (62); one end of the terminal assembly, which extends out of the insulator seat, is an elastic contact area (601), and the other end of the terminal assembly is a wiring area (603) connected with the cable.

2. The terminal mounting structure according to claim 1, wherein: the insulator base (51) is provided with at least two rows of terminal assemblies at intervals in the front-rear direction.

3. The terminal mounting structure according to claim 2, wherein: the terminal assembly located in the front row and the terminal assembly located in the rear row are arranged in a staggered manner in the height direction of the insulator base.

4. The terminal mounting structure according to claim 3, wherein: the front row of terminal assemblies are disposed at a greater height than the rear row of terminal assemblies.

5. The terminal mounting structure according to claim 4, wherein: the terminal assemblies in the front row differ from the terminal assemblies in the rear row by 1/2 to 1 times the cable thickness in the insulator seat height direction.

6. The terminal mounting structure according to claim 2, wherein: the terminal assembly located in the front row and the terminal assembly located in the rear row are arranged in a staggered mode in the width direction of the insulator seat.

7. The terminal mounting structure according to claim 6, wherein: the displacement amount of the terminal assembly positioned in the front row and the terminal assembly positioned in the rear row in the width direction of the insulator seat is less than one time of the width of the terminal assembly.

8. The terminal mounting structure according to claim 7, wherein: the terminal assemblies in the front row differ from the terminal assemblies in the rear row by 1/2 to 1 times the cable width in the insulator block width direction.

9. The terminal mounting structure according to claim 4, wherein: the length of the wiring region on the rear row terminal assembly is set to L1, the length of the wiring region on the front row terminal assembly is set to L2, and the difference L between the lengths of the wiring regions of the front/rear two row terminal assemblies is L1-L2; the difference in the height direction between the front and rear row terminal assemblies is H, and L is H.

10. The terminal mounting structure according to claim 1, wherein: each cable (3) is welded with one terminal component, each cable comprises two ground wires (32) and two signal wires (31), wherein the ground wires (32) are respectively connected with the two ground terminals (62) in a one-to-one correspondence mode, and the signal wires (31) are respectively connected with the two signal terminals (61) in the differential signal pair in a one-to-one correspondence mode.

11. The terminal mounting structure according to claim 1, wherein: the insulator seat (51) is provided with a process empty groove (517), and the process empty groove (517) is arranged below the wiring area (603) so as to facilitate the welding of the cable and the terminal component.

12. The terminal mounting structure according to claim 1, wherein: the terminal assembly between the terminal area and the elastic contact area is an assembly holding area (602), and the assembly holding area (602) is in interference fit with the insulator seat (51).

13. The terminal mounting structure according to claim 11, wherein: and a mounting hole (513) is formed in the insulator seat (51), the mounting hole (513) is arranged in a penetrating manner along the vertical direction, and the mounting hole is fixedly matched with the assembly holding area so as to realize the mounting and positioning of the terminal assembly.

14. The terminal mounting structure according to claim 2, wherein: the cables connected to the terminal assemblies located in the front row and the cables connected to the terminal assemblies located in the rear row are collectively routed out of the rear end of the insulator base.

15. The terminal mounting structure according to claim 14, wherein: the rear end of the insulator seat is provided with a row of wire guiding grooves (518) along the width direction.

16. A cable connector, characterized by: including the terminal mounting structure according to any one of claims 1 to 15.

17. Connector assembly, including cable connector and the adaptation connector of pegging graft with cable connector adaptation, its characterized in that: the cable connector includes the terminal mounting structure of any one of claims 1 to 15.

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