Terminal module and socket connector with same

Abstract

The utility model discloses a terminal module and a socket connector with the same. The terminal module comprises a plurality of grounding terminals, a plurality of signal terminals and a shielding plate. The plurality of grounding terminals are respectively provided with a first holding part, and each first holding part comprises a first upper holding part, a first lower holding part and a first bending part connected between the first upper holding part and the first lower holding part. The plurality of signal terminals are respectively provided with a second holding part, and each second holding part comprises a second upper holding part, a second lower holding part and a second bending part connected between the second upper holding part and the second lower holding part. The shielding plate is arranged on the outer sides of the grounding terminals and the signal terminals and comprises a first shielding plate, a second shielding plate and a third bending part connected between the first shielding plate and the second shielding plate, and the third bending part, the first bending part and the second bending part are concentric arcs. The socket connector provided by the utility model has a good signal transmission function in the use process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric connector, especially, relate to a terminal module and the socket connector with the terminal module. BACKGROUND

[0002] In order to avoid the signal terminal between signal crosstalk, and the mutual crosstalk between each terminal module, need to set ground shielding mechanism. In the terminal group of the existing high-speed connector, the shielding effect of the ground shielding mechanism formed by each ground terminal and the conductive shielding plate is not good, and it is difficult to meet the future high-speed transmission requirement of faster transmission speed requirement. INVENTION CONTENTS

[0003] In view of the above technical problems, the utility model provides a terminal module and the socket connector with the terminal module, which optimizes the ground shielding mechanism, so that the shielding effect of the ground shielding mechanism is good, and the future high-speed transmission requirement of faster transmission speed requirement is met.

[0004] To solve the above technical problems, the utility model provides the following technical scheme:

[0005] A terminal module, comprising a plurality of ground terminals, a plurality of signal terminals and a shielding plate, wherein each of the plurality of ground terminals has a first holding part, a first butt joint part and a first welding part; the first holding part comprises a first upper holding part, a first lower holding part and a first bending part connected between the first upper holding part and the first lower holding part; the plurality of ground terminals and the plurality of signal terminals are arranged in sequence in a transverse direction and are spaced apart from each other; each of the plurality of signal terminals has a second holding part, a second butt joint part and a second welding part; the second holding part comprises a second upper holding part, a second lower holding part and a second bending part connected between the second upper holding part and the second lower holding part; the shielding plate is arranged on the outer side of the plurality of ground terminals and the plurality of signal terminals, and comprises a first shielding plate arranged above the first upper holding part and the second upper holding part, a second shielding plate arranged behind the first lower holding part and the second lower holding part, and a third bending part connected between the first shielding plate and the second shielding plate, wherein the third bending part is a concentric circular arc with the first bending part and the second bending part.

[0006] In one embodiment, the two sides of the first bending part each protrude outwardly by a first wing.

[0007] In one embodiment, the two sides of the second bending part each protrude outwardly by a second wing.

[0008] In one embodiment, the two ends of the second wing extend to the second upper holding part and the second lower holding part respectively.

[0009] In one of the embodiments, the terminal module further comprises a first body portion and a second body portion; the first body portion is in a transversely extending plate structure, the second body portion is in an up-and-down extending plate structure, the second body portion is located at the back and lower side of the first body portion, the second body portion is perpendicular to the first body portion but not intersecting; the first upper holding portion and the second upper holding portion are held in the first body portion, the first lower holding portion and the second lower holding portion are held in the second body portion; the first bending portion and the second bending portion are exposed between the first body portion and the second body portion; the first mating portion and the second mating portion are respectively extended forward from the front ends of the first upper holding portion and the second upper holding portion and protrude out of the front surface of the first body portion, the first welding portion and the second welding portion are respectively extended downward from the lower ends of the first lower holding portion and the second lower holding portion and protrude out of the lower surface of the second body portion.

[0010] In one of the embodiments, the plurality of signal terminals comprises a plurality of first signal terminals, the plurality of first signal terminals are arranged transversely and spaced apart two by two between two adjacent ground terminals; the plurality of signal terminals further comprises a second signal terminal, the second signal terminal is arranged outside one of the two outermost ground terminals.

[0011] In one of the embodiments, the first upper holding portion is connected with an elastic portion protruding out of the outer surface of the first upper holding portion, the first lower holding portion is connected with an elastic portion protruding out of the outer surface of the first lower holding portion, and each elastic portion abuts against the first shielding plate and the second shielding plate respectively.

[0012] To solve the above technical problems, the utility model provides a socket connector, install on the circuit board, including a first insulator, a second insulator and a plurality of as described above terminal module, the first insulator and the second insulator are combined with each other, and the plurality of terminal modules are arranged in the first insulator and the second insulator.

[0013] In one of the embodiments, the first insulator comprises a first side plate and a second side plate, the first side plate and the second side plate are arranged transversely and spaced apart; a plurality of mating tongue plates extending longitudinally and arranged spaced apart up and down are connected between the first side plate and the second side plate, and an array of terminal grooves is formed on the upper surface and the lower surface of each mating tongue plate; the plurality of terminal modules are arranged in pairs on the upper surface and the lower surface of a corresponding mating tongue plate, and the first mating portion and the second mating portion are accommodated in the corresponding terminal grooves.

[0014] In one embodiment, the second insulating seat comprises a third side plate and a fourth side plate, the third side plate and the fourth side plate are transversely arranged and spaced apart, the third side plate and the fourth side plate are respectively arranged outside the first side plate and the second side plate; a plurality of second partitions arranged in front and back are connected between the third side plate and the fourth side plate, a second containing space is formed between two adjacent second partitions of the plurality of second partitions, and the first lower holding part, the second lower holding part and the second shielding plate of the plurality of terminal modules are respectively contained in a second containing space.

[0015] The socket connector has the advantages that the third bending part, the first bending part and the second bending part are arranged as concentric arcs, which is beneficial to the layout and assembly of the terminal modules, and is beneficial to impedance adjustment, so that the socket connector has good signal transmission function in use, and meets the requirement of high-speed transmission with faster transmission speed in the future. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the application and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0017] Figure 1 It is a perspective view of one embodiment of the socket connector.

[0018] Figure 2 It is a perspective view of one embodiment of the socket connector. Figure 1 It is a perspective view of one embodiment of the socket connector.

[0019] Figure 3 It is a perspective view of one embodiment of the socket connector. Figure 1 It is a perspective view of one embodiment of the socket connector.

[0020] Figure 4 It is a perspective view of one embodiment of the socket connector. Figure 1 It is a perspective view of one embodiment of the socket connector.

[0021] Figure 5 It is a perspective view of one embodiment of the socket connector. Figure 4 It is a perspective view of one embodiment of the socket connector.

[0022] Figure 6 It is a perspective view of one embodiment of the socket connector.

[0023] Figure 7 It is a perspective view of one embodiment of the socket connector.

[0024] Figure 8 It is a perspective view of one embodiment of the socket connector.

[0025] Figure 9 It is a perspective view of one embodiment of the socket connector. Figure 8 It is a perspective view of one embodiment of the socket connector.

[0026] Figure 10 For Figure 9 Partial enlarged view of the middle X.

[0027] Figure 11 For Figure 8 Another angle perspective exploded view of the terminal module.

[0028] The description reference signs are as follows:

[0029] Socket connector 100; first insulating seat-1; first side plate-11; second side plate-12; second mounting gap-121; butt tongue plate-13; terminal slot-131; first guide surface-132; butt part-133; top plate-14; bottom plate-15; first mounting gap-151; plug-in space-10; first partition plate-16; first containing space-17; guide strip-18; second guide surface-181; second insulating seat-2; third side plate-21; fourth side plate-22; second partition plate-23; second containing space-231; notch-232; fixed convex strip-233; slotted-25; terminal module-3; first body part-31; first slotted-311; fixed part-312; through hole-313; second body part-32; second slotted-321; grounding terminal-33; first holding part-331; first upper holding part-3311; first lower holding part-3312; first bending part-3313; first wing-3314; first butt part-332; first welding part-333; opening-334; elastic part-335; holding hole-336; signal terminal-34; first signal terminal-34a; second signal terminal-34b; second holding part-341; second upper holding part-3411; second lower holding part-3412; second bending part-3413; second wing-3414; second butt part-342; second welding part-343; shielding plate-35; first shielding plate-351; second shielding plate-352; third bending part-353; mounting hole-354; convex-355; holding piece-356. DETAILED DESCRIPTION

[0030] The embodiments of the present application will be described below through specific concrete examples, the drawings provided in the following examples only schematically illustrate the basic concept of the present application, and the following examples and the features in the examples can be combined with each other without conflict.

[0031] Please refer to Figures 1 to 4The utility model socket connector 100 installs on the circuit board (not shown in drawing), including a first insulator 1, a second insulator 2 and a plurality of terminal module 3. The first insulator 1 and the second insulator 2 are combined with each other, and the plurality of terminal module 3 is sequentially assembled in the first insulator 1 and the second insulator 2 in the interval arrangement from front to back and from bottom to top.

[0032] Please refer to Figures 1 to 7 The first insulator 1 includes a first side plate 11 and a second side plate 12, and the first side plate 11 and the second side plate 12 are arranged in transverse and interval. A plurality of butt joint tongue plates 13 extending longitudinally and arranged in interval from top to bottom are connected between the first side plate 11 and the second side plate 12, and a row of terminal grooves 131 are formed on the upper surface and the lower surface of each butt joint tongue plate 13. A top plate 14 is connected to the top of the first side plate 11 and the second side plate 12, and a bottom plate 15 is connected to the bottom of the first side plate 11 and the second side plate 12, and the first side plate 11, the second side plate 12, the top plate 14, the bottom plate 15 and the butt joint tongue plate 13 jointly enclose a plug-in space 10 matched with a plug-in connector (not shown in drawing).

[0033] The front surface of each butt joint tongue plate 13 is flush with the front surface of the first side plate 11 and the second side plate 12, and an inclined first guide surface 132 is arranged at the connection between the front surface and the upper surface and the lower surface of each butt joint tongue plate 13. A plurality of butt joint parts 133 are arranged on the front surface of the first insulator 1. Specifically, the front surface of the left and right sides of the uppermost butt joint tongue plate 13 and the lowermost butt joint tongue plate 13 connected with the first side plate 11 and the second side plate 12 protrudes forward by a butt joint part 133. Through the arrangement of the butt joint part 133, the plug-in connector matched with the socket connector 100 is guided and positioned during plug-in.

[0034] A plurality of first partition plates 16 extending longitudinally and arranged from top to bottom are connected between the first side plate 11 and the second side plate 12. The length of each first partition plate 16 increases sequentially from bottom to top according to the arrangement order, and the front end of each first partition plate 16 is flush. Each first partition plate 16 is arranged on the upper and lower sides of the rear part of a butt joint tongue plate 13 in interval, and a first containing space 17 is formed by the upper surface and the lower surface of a butt joint tongue plate 13 and two first partition plates 16.

[0035] The lower surface of the top plate 14 is connected with the uppermost first partition plate 16, and the rear end surface of the bottom plate 15 is connected with the front surface of the lowermost first partition plate 16. The upper surface of the bottom plate 15 forms a stepped shape with the first partition plate 16. A first mounting slot 151 penetrating the front surface and the lower surface of the bottom plate 15 is formed on the lower surface of the bottom plate 15.

[0036] The first side plate 11 and the second side plate 12 are in the shape of a straight-angled trapezoid with the width of the upper part being larger than that of the lower part, each having a vertical front surface, a horizontal upper and lower surface, and an inclined rear surface. The rear surfaces of the first side plate 11 and the second side plate 12 are arranged in a stepped manner corresponding to the length of each first partition plate 16, and each step has a horizontal surface and a vertical surface.

[0037] The outer side surface of the first side plate 11 and the second side plate 12 is provided with a second mounting slot 121 extending through the bottom surface and the rear surface thereof. The inner wall of the second mounting slot 121 is provided with an inclined guide strip 18 extending upward and downward.

[0038] Please refer to Figures 1 to 4 , the second insulating seat 2 includes a third side plate 21 in the shape of a rectangle and a fourth side plate 22 in the shape of a rectangle, and the third side plate 21 and the fourth side plate 22 are arranged in a transverse manner and are spaced apart. A plurality of second partition plates 23 arranged in a front-rear direction are connected between the third side plate 21 and the fourth side plate 22. The height of the second partition plates 23 gradually increases from front to back, and a second accommodation space 231 is formed between two adjacent second partition plates 23. The upper surface of the last arranged second partition plate 23 is flush with the upper surfaces of the third side plate 21 and the fourth side plate 22, the rear surface of the last arranged second partition plate 23 is flush with the rear surfaces of the third side plate 21 and the fourth side plate 22, and the bottom surface of each second partition plate 23 is flush with the bottom surfaces of the third side plate 21 and the fourth side plate 22. A gap 232 is formed at the connection between the top end of each second partition plate 23 and the third side plate 21 and the fourth side plate 22. The front surface of the second partition plate 23 is provided with a fixing protrusion 233. The front part of the inner side surface of the third side plate 21 and the fourth side plate 22 is provided with a slot 25 extending upward and downward, and the upper end of the slot 25 penetrates the upper surface of the third side plate 21 and the fourth side plate 22.

[0039] Please refer to Figures 2 to 11 , each terminal module 3 includes a first body part 31, a second body part 32, a plurality of ground terminals 33, a plurality of signal terminals 34, and a shielding plate 35. The first body part 31 is in the shape of a horizontally extending plate, and the second body part 32 is in the shape of a vertically extending plate. The first body part 31 is arranged horizontally, and the second body part 32 is located below and behind the first body part 31. The second body part 32 is perpendicular to the first body part 31 but does not intersect with the first body part 31.

[0040] The lengths of the first body portions 31 of the terminal modules 3 are different, and increase in sequence from bottom to top according to the arrangement order of the terminal modules 3. The heights of the second body portions 32 of the terminal modules 3 are different, and increase in sequence from front to back according to the arrangement order of the terminal modules 3. The second body portion 32 of a terminal module 3 arranged at the back is spaced from the second body portion 32 of a preceding terminal module 3, and the first body portion 31 of the terminal module 3 arranged at the back is spaced from the first body portion 31 of the preceding terminal module 3. Specifically, the first body portions 31 of the terminal modules 3 are respectively accommodated in a first accommodating space 17, and the second body portions 32 of the terminal modules 3 are respectively accommodated in a second accommodating space 231. The front end faces of the first body portions 31 of the terminal modules 3 are flush, and the bottom faces of the second body portions 32 of the terminal modules 3 are flush.

[0041] The ground terminals 33 and the signal terminals 34 of the terminal modules 3 are arranged in sequence and spaced from each other in the transverse direction. In this embodiment, the width of each ground terminal 33 is greater than the width of a signal terminal 34, and the ground terminals 33 are arranged in sequence and spaced from each other in the transverse direction. The signal terminals 34 include first signal terminals 34a, which are arranged in sequence and spaced from each other in the transverse direction between two adjacent ground terminals 33.

[0042] Each ground terminal 33 has a first holding portion 331, a first connecting portion 332, and a first welding portion 333. The first holding portion 331 is formed by bending a long strip-shaped metal plate, and includes a first upper holding portion 3311 held in the first body portion 31, a first lower holding portion 3312 held in the second body portion 32, and a first bending portion 3313 connected between the first upper holding portion 3311 and the first lower holding portion 3312, which is exposed between the first body portion 31 and the second body portion 32. The first bending portion 3313 has two first wings 3314 protruding outward from the two sides thereof. The two ends of the first wings 3314 extend to the first upper holding portion 3311 and the first lower holding portion 3312, respectively.

[0043] The first upper holding part 3311 is connected with elastic parts 335 protruding out of the outer surface of the first upper holding part 3311, and the first lower holding part 3312 is connected with elastic parts 335 protruding out of the outer surface of the first lower holding part 3312. Specifically, the first upper holding part 3311 is provided with a plurality of vertically arranged holes 334, and each hole wall of each hole 334 is connected with an elastic part 335 protruding out of the outer surface of the first upper holding part 3311. The first lower holding part 3312 is also provided with a plurality of vertically arranged holes 334, and each hole wall of each hole 334 is also connected with an elastic part 335 protruding out of the outer surface of the first lower holding part 3312.

[0044] The first butt joint part 332 extends forward from the front end of the first holding part 331 and protrudes out of the front surface of the first body part 31, and the first welding part 333 extends downward from the lower end of the first holding part 331 and protrudes out of the lower surface of the second body part 32. Specifically, the first butt joint part 332 extends forward from the front end of the first upper holding part 3311 and then extends backward from the end, and the first welding part 333 extends downward from the lower end of the first lower holding part 3312.

[0045] Each signal terminal 34 is provided with a second holding part 341, a second butt joint part 342, and a second welding part 343. The second holding part 341 is bent from a long strip-shaped metal plate, and the second holding part 341 includes a second upper holding part 3411 held in the first body part 31, a second lower holding part 3412 held in the second body part 32, and a second bending part 3413 connected between the second upper holding part 3411 and the second lower holding part 3412. The second bending part 3413 is exposed between the first body part 31 and the second body part 32. The two sides of the second bending part 3413 each protrude outwards a second wing 3414, and the two ends of the second wing 3414 extend to the second upper holding part 3411 and the second lower holding part 3412, respectively.

[0046] The second butt joint part 342 extends forward from the front end of the second holding part 341 and protrudes out of the front surface of the first body part 31, and the second welding part 343 extends downward from the lower end of the second holding part 341 and protrudes out of the lower surface of the second body part 32. Specifically, the second butt joint part 342 extends forward from the front end of the second upper holding part 3411 and then extends backward from the end, and the second welding part 343 extends downward from the lower end of the second lower holding part 3412.

[0047] In the embodiment, the upper surface of the first body part 31 is provided with a plurality of first grooves 311 arranged in a transverse direction, and the rear surface of the second body part 32 is provided with a plurality of second grooves 321 arranged in a transverse direction. The first upper holding parts 3311 and the second upper holding parts 3411 arranged in a transverse direction are fixedly arranged in the first body part 31 and accommodated in the first grooves 311, and the first lower holding parts 3312 and the second lower holding parts 3412 arranged in a transverse direction are fixedly arranged in the second body part 32 and accommodated in the second grooves 321. The elastic parts 335 correspond to the bottom walls of the first grooves 311 and the second grooves 321, respectively, and the upper surface of the first body part 31 is provided with a plurality of fixing parts 312 protruding upward. The first body part 31 and the second body part 32 are both provided with a through hole 313 corresponding to the elastic parts 335, and the through hole 313 corresponds to the bottom walls of the first grooves 311 and the second grooves 321, respectively.

[0048] The shielding plate 35 is in an L shape and arranged outside the plurality of ground terminals 33 and the plurality of signal terminals 34. The shielding plate 35 includes a first shielding plate 351 arranged above the first upper holding parts 3311 and the second upper holding parts 3411, a second shielding plate 352 arranged behind the first lower holding parts 3312 and the second lower holding parts 3412, and a third bending part 353 connected between the first shielding plate 351 and the second shielding plate 352. Specifically, the first shielding plate 351 is arranged on the upper surface of the first body part 31, and the second shielding plate 352 is arranged on the rear surface of the second body part 32. The first shielding plate 351 is provided with a plurality of mounting holes 354, and the fixing parts 312 are respectively arranged in the mounting holes 354, thereby providing positioning and fixing for the first shielding plate 351.

[0049] The third bending part 353, the first bending part 3313, and the second bending part 3413 are arranged as concentric arcs, which is beneficial to the layout and assembly of the terminal module 3 and the adjustment of impedance. The first wing 3314 and the second wing 3414 are arranged, which is beneficial to the further adjustment of impedance.

[0050] The first shielding plate 351 and the second shielding plate 352 are respectively provided with a convex 355 protruding downward and forward corresponding to each ground terminal 33, and the convex 355 respectively extends into the first groove 311 and the second groove 321. Each elastic part 335 abuts against the first shielding plate 351 and the second shielding plate 352 of the shielding plate 35. Specifically, each elastic part 335 abuts against the inner surface of the corresponding convex 355. The arrangement of the elastic parts 335 is beneficial to shielding external electromagnetic signals and interference between the signal terminals 34.

[0051] The front end of the first shielding plate 351 corresponds to each grounding terminal 33 and is respectively bent downward to extend a retaining piece 356, the retaining hole 336 is opened at the retaining piece 356 of each grounding terminal 33, and each retaining piece 356 respectively extends into a retaining hole 336 and is electrically connected with the grounding terminal 33. Through the setting of the retaining piece 356, the shielding plate 35 is more stably electrically connected with the grounding terminal 33, and the stability of the socket connector 100 during the transmission of the electrical signal is ensured.

[0052] Please refer to Figures 1 to 11 The assembly process of the socket connector 100 of the utility model is as follows:

[0053] Firstly, a plurality of grounding terminals 33 and a plurality of signal terminals 34 are arranged in sequence, and then the first body part 31 and the second body part 32 are integrally formed on the first upper retaining part 3311, the second upper retaining part 3411 and the first lower retaining part 3312, the second lower retaining part 3412, and then the shielding plate 35 is installed on the first body part 31 and the second body part 32, and the shielding plate 35 is fixed on the first body part 31 and the second body part 32 through the mounting cooperation of a plurality of mounting holes 354 and the fixing part 312.

[0054] Secondly, a plurality of terminal modules 3 are installed as a group on the upper surface and the lower surface of a corresponding butt tongue plate 13, and the first butt part 332 and the second butt part 342 are respectively accommodated in the terminal groove 131 of the corresponding butt tongue plate 13. Specifically, the terminal module 3 arranged at the lowermost position is inserted into the first accommodating space 17 arranged at the lowermost position of the first insulating seat 1 from back to front, until the front surface of the first body part 31 is flush with the front surface of the first partition plate 16. The lower surface of the first body part 31 of the terminal module 3 abuts against the upper surface of the first partition plate 16 arranged at the lowermost position, the first butt part 332 and the second butt part 342 thereof are respectively accommodated in the terminal groove 131 of the lower surface of the corresponding butt tongue plate 13, the upper surface of the first shielding plate 351 thereof abuts against the lower surface of the butt tongue plate 13 arranged at the lowermost position, and the second body part 32 is arranged at the rear of the first partition plate 16. The first welding part 333 and the second welding part 343 of the terminal module 3 all protrude out of the lower surface of the bottom plate 15.

[0055] The terminal module 3 adjacent to the lowermost terminal module 3 is inserted into the first housing space 17 arranged below from back to front until the front surface of the first body part 31 is flush with the front surface of the first partition plate 16. The lower surface of the first body part 31 of the terminal module 3 abuts against the upper surface of the butt tongue plate 13 arranged at the lowermost position. The first butt part 332 and the second butt part 342 of the terminal module 3 are respectively accommodated in the terminal slot 131 corresponding to the upper surface of the butt tongue plate 13. The upper surface of the first shielding plate 351 of the terminal module 3 abuts against the lower surface of the first partition plate 16 arranged below. The second body part 32 of the terminal module 3 is arranged behind the second body part 32 of the terminal module 3 arranged at the lowermost position and the lower surfaces are flush with each other. The first welding part 333 and the second welding part 343 of the terminal module 3 protrude out of the lower surface of the bottom plate 15.

[0056] As described above, the terminal modules 3 are sequentially inserted into the first insulating seat 1 from back to front.

[0057] Finally, the second insulating seat 2 is assembled on the first insulating seat 1 from bottom to top by the guiding cooperation of the guide strips 18 and the grooves 25. The third side plate 21 and the fourth side plate 22 are respectively arranged outside the first side plate 11 and the second side plate 12. Specifically, the third side plate 21 and the fourth side plate 22 are respectively accommodated in the second mounting groove 121 of the first side plate 11 and the second side plate 12. The rear surface of the third side plate 21 and the fourth side plate 22 is flush with the rear surface of the top plate 14 of the first insulating seat 1. The front surface of the second partition plate 23 arranged at the frontmost position abuts against the rear surface of the bottom plate 15. The notches 232 on the left and right sides of the second partition plate 23 correspond to the stepped rear surfaces of the first side plate 11 and the second side plate 12. The second body part 32, the first lower holding part 3312, the second lower holding part 3412 and the second shielding plate 352 of the terminal module 3 are respectively accommodated in the second housing space 231 between the two second partition plates 23. The fixing convex strip 233 abuts against the rear surface of the second shielding plate 352. The first welding part 333 and the second welding part 343 protrude out of the lower surfaces of the bottom plate 15 and the second partition plate 23.

[0058] In the present embodiment, the signal terminals 34 further include a second signal terminal 34b arranged outside one of the two outermost ground terminals 33. Specifically, the second signal terminal 34b of the terminal module 3 arranged above in the same group of terminal modules 3 is arranged outside the leftmost ground terminal 33. The second signal terminal 34b of the terminal module 3 arranged below in the same group of terminal modules 3 is arranged outside the rightmost ground terminal 33.

[0059] As described above, the socket connector 100 of the utility model sets the third bending part 353, the first bending part 3313 and the second bending part 3413 as concentric circular arcs, which is not only beneficial to the layout and assembly of each terminal module 3, but also beneficial to the impedance adjustment, so that the socket connector 100 has good signal transmission function in the use process, and meets the future high-speed transmission requirement of faster transmission speed requirement.

[0060] The above embodiments only express the preferred embodiments of the utility model, which are described in detail, but cannot be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A terminal module, characterized by: The terminal module comprises a plurality of grounding terminals, a plurality of signal terminals and a shielding plate. Each of the grounding terminals has a first holding part, a first connecting part and a first welding part; the first holding part comprises a first upper holding part, a first lower holding part and a first bending part connected between the first upper holding part and the first lower holding part. The plurality of grounding terminals and the plurality of signal terminals are arranged in sequence and spaced apart from each other in the transverse direction; each of the plurality of signal terminals has a second holding part, a second connecting part and a second welding part; the second holding part comprises a second upper holding part, a second lower holding part and a second bending part connected between the second upper holding part and the second lower holding part. The shielding plate is arranged outside the plurality of grounding terminals and the plurality of signal terminals and comprises a first shielding plate arranged above the first upper holding part and the second upper holding part, a second shielding plate arranged behind the first lower holding part and the second lower holding part and a third bending part connected between the first shielding plate and the second shielding plate, wherein the third bending part is concentric with the first bending part and the second bending part.

2. The terminal module of claim 1, wherein: The two sides of the first bending part each protrude outwardly by a first wing.

3. The terminal module of claim 1, wherein: The two sides of the second bending part each protrude outwardly by a second wing.

4. The terminal module of claim 3, wherein: The two ends of the second wing extend to the second upper holding part and the second lower holding part respectively.

5. The terminal module of claim 1, wherein: The terminal module further comprises a first body part and a second body part; the first body part has a plate structure extending in the transverse direction, the second body part has a plate structure extending in the vertical direction, the second body part is arranged below and behind the first body part, the second body part is perpendicular to the first body part but does not intersect with the first body part; the first upper holding part and the second upper holding part are held in the first body part, the first lower holding part and the second lower holding part are held in the second body part; the first bending part and the second bending part are exposed between the first body part and the second body part; the first connecting part and the second connecting part are respectively formed by extending forward from the front ends of the first upper holding part and the second upper holding part and protrude out of the front surface of the first body part; the first welding part and the second welding part are respectively formed by extending downward from the lower ends of the first lower holding part and the second lower holding part and protrude out of the lower surface of the second body part.

6. The terminal module of claim 1, wherein: The plurality of signal terminals comprise a plurality of first signal terminals arranged in the transverse direction and spaced apart from each other between two adjacent grounding terminals; the plurality of signal terminals further comprise a second signal terminal arranged outside one of the two outermost grounding terminals.

7. The terminal module of claim 1, wherein: The first upper holding part is connected with an elastic part protruding out of the outer surface of the first upper holding part, the first lower holding part is connected with an elastic part protruding out of the outer surface of the first lower holding part, and each elastic part abuts against the first shielding plate and the second shielding plate respectively.

8. A receptacle connector mounted on a circuit board, characterized by: The terminal module comprises a first insulating seat, a second insulating seat and a plurality of terminal modules as claimed in any one of claims 1 to 7; the first insulating seat and the second insulating seat are combined with each other, and the plurality of terminal modules are arranged in the first insulating seat and the second insulating seat.

9. The receptacle connector of claim 8, wherein: The first insulation seat comprises a first side plate and a second side plate, the first side plate and the second side plate are transversely arranged and spaced apart; a plurality of butt joint tongue plates extending longitudinally and arranged vertically are connected between the first side plate and the second side plate, the upper surface and the lower surface of each butt joint tongue plate are provided with a row of terminal grooves; the terminal modules are arranged in pairs as a group on the upper surface and the lower surface of a corresponding butt joint tongue plate, and the first butt joint part and the second butt joint part are respectively accommodated in the terminal grooves.

10. The receptacle connector of claim 9, wherein: The second insulation seat comprises a third side plate and a fourth side plate, the third side plate and the fourth side plate are transversely arranged and spaced apart, and the third side plate and the fourth side plate are respectively arranged on the outer side of the first side plate and the second side plate; a plurality of second partitions arranged front to back are connected between the third side plate and the fourth side plate, a second accommodation space is formed between two adjacent second partitions in the plurality of second partitions, and the first lower holding part, the second lower holding part and the second shielding plate of the terminal module are respectively accommodated in a second accommodation space.

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