TWM504383U - Receptacle connector and plug connector matching with each other - Google Patents

Description

Socket connector and plug connector for docking therewith

The present invention relates to an electrical connector assembly in which the plug connector can be inserted into the receptacle connector in both forward and reverse directions.

U.S. Patent Application Publication No. 20130095702A1 discloses a two-way plug connector having a plug connector having opposing upper and lower surfaces, the plurality of conductive terminals being disposed on the upper and lower surfaces. The conductive terminals exposed to the upper and lower surfaces are symmetrically spaced from each other, and the shape of the connector is substantially 180 degrees symmetric so that it can be inserted into the corresponding receptacle connector in the forward and reverse directions.

However, the socket connector or the inside of the electronic device needs to be provided with a switching circuit to detect whether the plug connector is inserted in the forward direction or reversely inserted, thereby starting the corresponding subsequent program. The more the terminals of the connector, the more complicated the switching circuit, and thus, the trend is not met.

At the same time, the plug connector is an exposed plug, and there is still the possibility of plugging damage in actual use.

Therefore, it is indeed necessary to provide an electrical connector combination having an improved structure to overcome the above drawbacks.

The purpose of this creation is to provide an electrical connector assembly in which the plug connector can be inserted into the receptacle connector in both forward and reverse directions.

The purpose of the present invention is achieved by the following technical solutions: a socket connector comprising a terminal block and a metal casing surrounding the terminal block, the terminal block comprising a butt tongue and two rows of terminals, the butt tongue having two opposite surfaces, The two rows of terminals are respectively arranged on opposite surfaces of the mating tongue, and the metal casing surrounds the butt tongue to form a docking cavity, the docking cavity is symmetrically disposed 180 degrees with respect to the butting tongue, and the butt tongue is between the two opposite surfaces thereof A shielding plate is provided, and the shielding plate and the abutting tongue plate respectively include a front edge and two side edges.

The purpose of the present invention can also be achieved by the following technical solutions: a plug connector comprising an insulative housing, two rows of terminals and a metal housing, the insulative housing having two opposite side walls, the two rows of terminals being respectively disposed on the two side walls of the insulative housing The metal casing covers the outer surface of the insulative housing; the plug connector can be inserted into the receptacle connector in both forward and reverse directions.

Compared with the prior art, the present invention has the following effects: the plug and socket connector of the present invention are convenient for plugging, have certain strength and have a good shielding effect.

200‧‧‧ plug connector

400‧‧‧Socket connector

21‧‧‧Internal circuit board

401‧‧‧ boards

211‧‧‧Electrical gasket

402‧‧‧ docking chamber

22‧‧‧Insulated body

403‧‧‧Longside

221‧‧‧Central trough

404‧‧‧ Short side

222‧‧‧ side wall

41‧‧‧Terminal module combination

23‧‧‧Metal casing

411‧‧‧Upper terminal module

24‧‧‧terminal

412‧‧‧Bottom terminal module

241‧‧‧Contacts

413‧‧ ‧ tongue plate

242‧‧‧ feet

413’‧‧‧Connecting tongue

25‧‧‧ Positioning parts

4132‧‧‧Fixed Department

251‧‧‧through hole

421, 422‧‧‧ terminals

26‧‧‧Insulated shell

44‧‧‧Shielding board

27‧‧‧ Cable

441‧‧‧ gap

271‧‧‧core

442, 446‧‧‧ thin section

300‧‧‧Socket connector

443‧‧‧ front edge

301‧‧‧ docking chamber

447‧‧‧ side edge

31‧‧‧Terminal module combination

448‧‧‧holding gap

311‧‧‧Upper terminal module

45‧‧‧Metal casing

321‧‧‧Upper terminal

451‧‧‧Back cover

3211‧‧‧Contacts

452‧‧‧Fold

3212‧‧‧ pins

454‧‧‧Buckle film

331‧‧‧Upper insulator

209‧‧‧Holding parts

312‧‧‧Bottom terminal module

54‧‧‧shading board

322‧‧‧lower terminal

513’‧‧‧Connecting tongue

3221‧‧‧Contacts

541‧‧‧ Thin section

3222‧‧‧ pins

542‧‧‧ gap

332‧‧‧lower insulator

52‧‧‧ Signal Terminal

313‧‧ ‧ tongue plate

600‧‧‧ socket connector

313'‧‧‧Contact tongue

61‧‧‧Upper terminal module

333‧‧‧Insulator

62‧‧‧Bottom terminal module

3315‧‧‧Positioning holes

611, 621‧‧ ‧ Body Department

3325‧‧‧fixed seam

612, 622‧‧ ‧ tongue plate

3326‧‧‧Positioning column

613‧‧‧ terminals

3327‧‧‧Depression

65‧‧‧Metal casing

34‧‧‧shading board

110‧‧‧ plug connector

340‧‧‧ front area

112‧‧‧Insulated body

342‧‧‧ front side

114‧‧‧Metal casing

343‧‧‧Fixed tablets

116‧‧‧ docking chamber

344‧‧‧Elastic film

118‧‧‧terminal

3441‧‧‧Arc

120‧‧‧Beveled structure

345‧‧‧ positioning port

150‧‧‧Socket connector

346‧‧‧Extension

152‧‧‧Terminal Block

348‧‧‧ Rear area

154‧‧‧Metal casing

35‧‧‧Metal casing

156‧‧‧Upper terminal module

351‧‧‧Back cover

160‧‧‧Upper terminal

352‧‧‧Flexible arm

164‧‧‧lower terminal

353‧‧‧ pins

168‧‧‧Connecting tongue

354‧‧‧Buckle film

170‧‧‧Contacts

172‧‧‧ oblique structure

The first drawing is a perspective view of the electrical connector assembly of the first embodiment of the present invention, including a plug connector and a socket connector;

The second figure is an exploded perspective view of the first plug connector;

The third figure is a front view of the first plug connector;

The fourth figure is a perspective view of the socket connector of the first figure;

Figure 5 is a front view of the socket connector of the fourth figure;

Figure 6 and Figure 7 are perspective exploded views of the two angles of the socket connector of the fourth figure;

Figure 8 is a partially exploded perspective view of the socket connector of the fourth figure, wherein the tongue member has been mounted to the lower terminal module;

The ninth figure is a partial exploded perspective view of the socket connector of the fourth figure, wherein the terminal module combination has been installed together;

Figure 10 is a perspective view of the fourth panel socket connector shielding plate;

Figure 11 is a cross-sectional cutaway view of the socket connector of the fourth figure mounted on the circuit board, mainly showing the contact relationship between the elastic piece and the metal casing;

The twelfth figure is a vertical cut sectional view of the socket connector mounted on the circuit board, which mainly shows the positional relationship between the terminal and the shielding plate;

The thirteenth picture is similar to the sixth picture;

Figure 14 is a perspective view of the terminal module combination of the twelfth figure;

The fifteenth figure is a perspective view of the shielding plate of the thirteenth figure;

Figure 16 is a perspective view showing the socket connector of the second embodiment of the present invention mounted on a circuit board;

Figure 17 is a front view of the sixteenth figure;

Figure 18 is a cross-sectional view taken along line I-I of Figure 17;

The nineteenth figure is an exploded perspective view of the socket connector of the sixteenth embodiment;

Figure 20 is a perspective view of the shielding plate in the socket connector of the sixteenth embodiment;

The twenty-first figure is a top view of the terminal module combination in the socket connector of the sixteenth embodiment;

The twenty-second figure is a bottom view of the terminal module combination in the socket connector of the sixteenth figure;

Figure 23 is a perspective view of the plug connector mated with the socket connector of the sixteenth embodiment;

The twenty-fourth drawing is a perspective view of the shielding plate of the third embodiment of the present creation;

The twenty-fifth drawing is a perspective view of the terminal module combination of the third embodiment of the present creation;

The twenty-fifth figure is a perspective view of the terminal module combination removing the insulator in the twenty-fifth figure, mainly showing the positional relationship between the terminal and the shielding plate;

Figure 27 is an exploded perspective view of a two-piece socket connector having a shielding plate of the twenty-fourth figure;

Figure 28 is a perspective view of the electrical connector assembly of the fourth embodiment of the present invention, including a plug connector and a socket connector that are mated to each other;

Figure 29 is a perspective view of the plug connector and the socket connector of the twenty-eighth diagram;

Figure 30 is a perspective view of the plug connector and the socket connector at another angle according to the twenty-ninth aspect;

The thirty-first figure is a partial exploded view of the socket connector of the thirtieth diagram;

The thirty-second figure is a partial exploded view of another angle of the thirty-first figure;

The thirty-third figure is an exploded perspective view of the socket connector of the thirtieth diagram;

Figure 34 is a perspective exploded view of another angle of the socket connector of the thirty-third figure;

35 is a partial exploded view of the plug connector of the thirtieth diagram; and

Figure 36 is a partially exploded perspective view of the plug connector at another angle of the thirty-fifth diagram.

The first to twelfth figures show the electrical connector assembly of the first embodiment of the present invention, the present electrical connector assembly including a plug connector 200 connecting the cables 27 and a receptacle connector 300 mounted on the circuit board. The plug connector and the receptacle connector (mainly the mating face portion) have a 180 degree symmetrical shape such that the plug connector 200 can be inserted into the receptacle connector 300 in both forward and reverse directions. This creation defines the direction in which the two connectors 200 and 300 are mated and matched as the front-rear direction. It should be noted that the electrical connector of the present invention can be placed in any form or in an installed state, as it can be horizontally set and vertical. Various forms, such as straight setting or tilt setting, are described here as an example in which the socket connector 300 is horizontally disposed.

As shown in the second and third figures, the plug connector 200 includes an internal circuit board (or a daughter card) 21 having conductive pads 211 on opposite surfaces, an insulating body 22 on the front side of the internal circuit board 21, and an attached insulation. a metal outer casing 23 on the outer side of the body 22. The insulative housing 22 has a central slot 221 formed by two opposite side walls 222. The two side walls 222 are respectively provided with terminals 24. Each of the terminals 24 includes a contact portion 241 extending forwardly into the central slot 221 and a rearward extending connection to the conductive pad 211. Pin 242. The cables 27 extend rearward from the internal circuit board 21, and each of the cables 27 has a plurality of core wires 271 which are respectively connected to the rear conductive pads 211 of the internal circuit board 21. A pair of plastic positioning members 25 are located at the rear end of the inner circuit board 21, and are provided with through holes 251 through which the core wires 271 pass. An insulating case 26 is injection molded on the metal case 23, the internal circuit board 21, and the cable 27 to form a complete plug connector 200.

Referring to the fourth to eleventh drawings, the socket connector 300 includes a terminal block (or a terminal module combination) 31 and a metal casing 35 that surrounds the terminal block 31 to form a mating cavity 301. The terminal module assembly 31 mainly includes an upper terminal. The module 311, the lower terminal module 312, and the tongue plate member 313 sandwiched between the upper and lower terminal modules 311, 312, the three components 311, 313, 312 are stacked in the vertical direction to form the terminal block 31. . The upper terminal module 311 includes an upper terminal 321 and an upper insulator 331 molded with the upper terminal 321 . The lower terminal module 312 includes a lower terminal 322 and a lower insulator 332 molded with the lower terminal 322. The tongue member 313 includes A flat shielding plate 34 and an insulator 333 molded with the shielding plate 34 have a pin connected to the grounding line. Therefore, the shielding plate 34 is also a grounding plate. The upper terminal 321 includes a contact portion 3211 extending from the front side of the upper insulator 331 and a pin 3212 extending rearwardly from the upper insulator 331. The contact portion 3211 is located on the first surface (ie, the upper surface) of the tongue plate member 313, and the pin 3212 is mounted. On the board. The lower terminal 322 includes a contact portion 3221 extending from a front side of the lower insulator 332 and a pin 3222 extending rearwardly from the lower insulator 332. The contact portion 3221 is located on the second surface (ie, the lower surface) of the tongue member 313, and the pin 3222 is mounted. On the board.

The shielding plate 34 includes a front region 340 embedded in the insulator 333 of the tongue member 313 and a rear region 348 extending from the insulator 333. The rear portion 348 is provided with a positioning opening 345 and an extending piece 346 extending horizontally rearward. The positioning opening 345 is located substantially in the middle of the lateral direction, and the extending piece 346 is located behind the positioning opening 345 in the docking direction. A pair of fixing pieces 343 are bent downwardly from the rear edge of the shielding plate 34, and the fixing pieces 343 are located on both sides of the extending piece 346. The two side edges of the shielding plate 34 extend a pair of elastic pieces 344 adjacent to the rear end, and the elastic piece 344 extends rearward and has an outward curved portion 3441. As shown in the eighth figure, the tongue member 313 is assembled from the top to the bottom of the lower terminal module 312, wherein the fixing piece 343 is inserted and fixed to the fixing seam 3325 of the lower terminal module 312 (indicated in the sixth figure), the positioning port 345 Then, it is guided by the positioning post 3326 of the lower terminal module 332 and inserted and fixed, and the extending piece 346 is received in the shallow recessed portion provided on the upper surface of the lower terminal module 332. The elastic piece 344 is housed in the recessed portion 3327 on the side of the lower insulator 332 of the lower terminal module 312. Relative to the butt tongue, the front region 340 of the shielding plate 34 is located on the butt tongue, the rear region 348 extends out of the butt tongue, and the rear region 348 is provided with a positioning opening 345 and an extending piece 346 extending horizontally rearward.

As shown in the eighth and ninth figures. The upper terminal module 311 is mounted from the top to the bottom of the tongue plate member 313 and the lower terminal module 312. The second position of the positioning post 3326 is inserted and fixed through the positioning opening 345 of the shielding plate 34 as shown in the twelfth figure. The positioning hole 3315 of the upper terminal module 311. Thus, the terminal block/terminal module assembly 31 is formed.

The metal casing 35 surrounds the terminal block 31 to form a mating cavity 301, and the portion of the tongue plate member 313 that extends forward into the mating cavity 301 forms a butt tongue that abuts the plug connector 200, and the space between the butt tongue and the metal casing 35 Forming the abutting cavity 301, the docking cavity 301 is symmetrically disposed 180 degrees with respect to the abutting tongue plate, and the abutting tongue plate is provided with the shielding plate 34 between the two opposite surfaces thereof, and the elastic piece 344 is electrically and mechanically contacted with the metal casing 35. As shown in the eleventh figure. Referring to the eighth and twelfth drawings, the front side edge 342 and the side edge of the shielding plate 34 extend outward to the edge of the abutting tongue, that is, the front edge and the side edge exposed to the corresponding butt tongue form a complete butt tongue. The edge of the board is used to discharge static electricity, and it can also overcome the scratch on the butt tongue when the docking is incorrect. Importantly, in the present electrical connector assembly, the plug connector 200 can be inserted into the receptacle connector 300 in both forward and reverse directions. It can be understood that in order to achieve the forward and reverse insertion, the mechanical structure of the docking cavity 301 of the receptacle connector 300 and the mechanical structure of the plug connector 200 must be symmetrical about the central axis. Correspondingly, the arrangement of the terminals must also be arranged diagonally about the central axis, ie in the horizontal and vertical directions. The metal casing 35 is provided with a resilient arm 352 extending into the mating cavity 301 and a rear cover 351 covering the rear end surface of the terminal block 31. Both sides of the metal casing 35 are respectively provided with pins 353 at the front ends thereof, and the metal casing 35 is on the side wall thereof. A fastening piece 354 that is inwardly fastened to the terminal block 31 is provided at the rear end.

The thirteenth through fifteenth figures are similar to the receptacle connector 300 of the previous embodiment, and mainly show two main points. First, the shielding plate 34 is embedded in the tongue plate member 313 and surrounds the plane of the entire butting tongue plate 313'. Thus, when the plug connector 200 or other unpaired plug connector is improperly inserted, such as the left and right sides, the tilting plate 34 is inclined. When inserted, the metal shielding plate 34 can effectively prevent the butt tongue 313' made of plastic material from being damaged by impact. The second point is that the shielding plate 34 is clamped between the insulators of the upper and lower terminal modules, so that the abutting tongue plate has a certain elasticity, so that when the plug connector is inserted obliquely in the up and down direction, it can be avoided. The impact of the butt tongue 313' in the up and down direction is broken.

16 to 22 show a socket connector 400 of a second embodiment, the socket connector 400 is mounted on a circuit board 401, which includes a metal casing 45 and a terminal module assembly 41, and a terminal module combination 41 includes upper and lower terminal modules 411, 412 and a tongue member 413 having a shielding plate 44 sandwiched therebetween, and the three are stacked and assembled in a vertical direction to form a terminal block 41 (ie, the terminal die described above) The combination of the tongue plate member 413 forms abutting tongue 413'. The upper and lower terminal modules 411 and 412 are embedded with terminals 421 and 422, and the contact portions of the terminals 421 and 422 are arranged on the butting tongue 413'. The metal casing 45 is fixed to the terminal block 41 from the front to the rear, the rear cover 451 of the metal casing 45 covers the rear end surface of the terminal block 41, and the rear cover 451 is provided with a bent piece 452 which is bent forward to the side wall of the metal casing 45. The bent piece 452 is provided with a fastening piece 454 that is inwardly fastened to the terminal block 41. The tongue member 413 includes a butt tongue 413' on the front side and a fixing portion 4132 on the rear side, and the rear portion of the fixing portion 4132 and the shielding plate 44 is sandwiched between the upper and lower insulators.

The metal casing 45 of the socket connector 400 forms a docking cavity 402 around the butting tongue 413'. As shown in FIG. 17, the front surface of the docking chamber 402 is viewed by the two parallel long sides 403 and two as seen from the front of the docking chamber. The curved short sides 404 are connected, and the docking cavity of the socket connector 200 of the first embodiment has a rectangular shape. The two embodiments have in common that the socket connector comprises a terminal block (formed by a combination of terminal modules) and a metal casing surrounding the terminal block, the terminal block comprising a butt tongue and a terminal on opposite surfaces of the butt tongue, metal The outer casing surrounds the butt tongue to form a docking cavity; the plug connector comprises an insulating body, two rows of terminals and a metal outer casing, the insulating body has two opposite side walls, the two rows of terminals are respectively disposed on two side walls of the insulating body, and the metal casing is covered The outer surface of the insulative housing; the mating cavity of the socket connector is symmetrically disposed at 180 degrees, and the plug connector can be inserted into the socket connector in both forward and reverse directions; the mating plate is provided with a shielding plate, and the shielding plate is located at the socket connector Between the two rows of terminals; the front edge and the two side edges of the shielding plate are respectively exposed to the corresponding front edge and side edge of the butt tongue.

The shield plate 44 can also enhance the action of the butt tongue 413' in addition to the shielding effect. The shielding plate 44 is further provided with two notches 441 and a thin portion 442 extending through the front edge (the thin portion 442 may even be a notch shape), and the front edge 443 slightly protrudes forwardly from the front edge of the corresponding abutting tongue 413'. The two side edges protrude from the corresponding side edges of the butt tongue, which can effectively prevent the plug connector from damaging the butt tongue 413' when docked. As shown in the twenty-first and twenty-second figures, the notch 441 is just aligned with the corresponding ground terminal in the up-and-down direction, and thus the power terminal overlaps the shielding plate 44. At the same time, the inner side of the notch 441 is retracted to the front edge of the butt tongue 413' to aid in molding. On the other hand, in the initial state in which the plug connector is inserted as shown in Fig. 23, the other terminals of the plug connector can contact the front edge of the shield plate 44. The thinned front edge 442 can allow an inward elastic movement of the front end of the corresponding terminal to form a guiding front end, which provides a better fixing action and facilitates insertion, avoiding the risk of short circuit. The shield plate 44 is provided at its rear end with a thin section 446 which is just aligned with the high speed signal terminal to improve the electrical performance of the high speed signal terminal. The side edges 447 of the shielding plate protrude from the corresponding side edges of the abutting tongue 413 ′, and each side edge 447 is further provided with a fastening notch 448 protruding from the side edge of the abutting tongue 413 ′, the fastening notch 448 is used for The metal clip 209 of the plug connector of FIG. 23 is fixed. When the plug connector is inserted into the mating cavity 402 of the receptacle connector, the latch 209 of the plug connector is fastened in the latching notch 448.

The twenty-fourth to twenty-sixth drawings show a third embodiment, and the socket connector of the third embodiment is similar to the socket connector 400 of the second embodiment, the main difference being the shielding plate 54, the shielding plate 54 is convex The front edge and the side edge of the mating tongue 513' serve to prevent mis-insertion, effective grounding and locking. The shield plate 54 is also provided with two thin regions 541 and four notches 542 between the thin regions which are just aligned with the signal terminals 52 for improving the electrical performance of the signal terminals. The two rows of terminals include a grounding terminal 53, and the contact portion of the grounding terminal 53 is bent downward to contact the shielding plate 54.

The twenty-seventh figure shows that the shielding plate 54 can also be used in another socket connector 600. The terminal block of the socket connector 600 is two-piece. The terminal block includes the upper terminal module 61, the lower terminal module 62 and the shielding. The shielding plate 54 is sandwiched between the upper and lower terminal modules 61 and 62. Each of the terminal modules 61 and 62 includes a body portion 611 and 621, and a tongue plate 612 extending from the body portions 611 and 621. 622 and the terminal 613 injection molded in the main body portions 611 and 621 and the tongue plates 612 and 622 (the terminals of the lower terminal module 62 are not shown due to the angle). The contact portions of the terminals 613 are respectively arranged on the upper and lower surfaces of the upper and lower tongue plates 612, 622, and the shielding plate 54 is sandwiched between the tongue plates 612, 622 and the body portions 611, 621. The metal casing 65 is wrapped around the outer side of the upper and lower terminal modules 61, 62 to form a docking cavity, and the docking tongue is located in the docking cavity.

The twenty-eighth to thirty-sixth figures show the electrical connector assembly of the fifth embodiment, which includes the plug connector 110 and the receptacle connector 150. The plug connector 110 includes an insulative housing 112, a metal housing 114 surrounding the insulative housing 112 to form the mating cavity 116, and two rows of terminals 118 arranged in parallel on opposite sides of the mating cavity 116. Different from the plug connector 200 of the first embodiment, the plug connector 110 has a beveled structure 120 at a lower corner of the insulative housing 112. The corresponding receptacle connector 150 also has a metal outer casing 154 and is surrounded by the metal outer casing 154. The terminal block 152 and the terminal block 152 include an upper terminal module 156 and a lower terminal module 158 which are stacked on each other. The upper terminal 160 and the insulator are injection molded to form the upper terminal module 156, and the plurality of lower terminals 164 are injection molded with the insulator to form the lower terminal module 158. The upper terminal module 156 is further provided with abutting tongue 168 extending forward from the insulator, and the contact portions 170 of the upper and lower terminals are respectively arranged on both sides of the abutting tongue 168. The metal housing 154 defines a central slot into which the tongue 168 of the plug connector is inserted when the connectors are mated, and the metal housing 154 also forms a beveled structure 172 that mates with the beveled edge 120. It will be appreciated that the two beveled configurations determine that the plug connector 110 can only be inserted into the plug connector in the correct direction. Of course, the assembly method of the terminal module assembly of the present embodiment is also applicable to the first and second embodiments.

In summary, this creation is in line with the new patent requirements, and the patent application is filed according to law. However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and any equivalent modification or change made by a person familiar with the skill of the present invention in accordance with the spirit of the present invention should be It is covered by the following patent application.

200‧‧‧ plug connector

300‧‧‧Socket connector

Claims (23)

A socket connector comprising:
The terminal block comprises a butt tongue and two rows of terminals, the butt tongue has two opposite surfaces, the two rows of terminals are respectively arranged on opposite surfaces of the butt tongue; and the metal shell surrounds the terminal block and surrounds the butt tongue Forming a docking chamber;
Wherein, the docking cavity is symmetrically disposed 180 degrees with respect to the abutting tongue plate, and the butting tongue plate is provided with a shielding plate between the opposite surfaces thereof, and the shielding plate and the abutting tongue plate both have a front edge and two side edges. The socket connector of claim 1, wherein the front edge and the side edges of the shielding plate respectively protrude from the corresponding front edge and the side edge of the abutting tongue. The socket connector of claim 1, wherein the side edges of the shielding plate respectively protrude from corresponding side edges of the abutting tongue, and the two side edges are respectively provided with fastening notches. The socket connector of claim 1, wherein the two rows of terminals respectively comprise a contact portion arranged on the tongue plate and a circuit board pin extending from the terminal block, the shielding plate having the two rows of terminals A pin between the board pins. The socket connector of claim 1, wherein the contour of the mating cavity of the socket connector is formed by connecting two parallel long sides and two curved short sides. The socket connector of any one of claims 1 to 5, wherein the terminal block comprises an upper terminal module and a lower terminal module, and the upper terminal module comprises an upper insulator and an upper terminal, The terminal includes a contact portion arranged on the surface of the abutting tongue and a pin extending from the upper insulator; the lower terminal module includes a lower insulator and a lower terminal, and the lower terminal includes a contact portion arranged on a lower surface of the butt tongue and extending the lower insulator The pin plate. The socket connector according to any one of claims 1 to 5, wherein the terminal block comprises an upper terminal module, a lower terminal module and a shielding plate, and the upper and lower terminal modules respectively extend A tongue plate and the two tongue plates are stacked on each other and the shielding plate is sandwiched between the two to form the above-mentioned butt tongue. The socket connector of any one of claims 1 to 5, wherein the terminal block comprises an upper terminal module and a lower terminal module, and the upper terminal module extends with a tongue plate, the terminal The upper terminal embedded in the upper terminal module and the lower terminal embedded in the lower terminal module, the upper terminal includes a contact portion disposed on a surface of the tongue plate, and the lower terminal includes a contact portion protruding from the lower terminal module; the upper and lower terminal molds When the groups are stacked together, the contact portions of the lower terminals are arranged on the other surface of the tongue to form the above-mentioned butt tongue. The socket connector of any one of the preceding claims, wherein the metal casing is provided with a back cover covering the terminal block, and the back cover is provided to be bent forward to the side wall of the metal casing The bent piece has a fastening piece that is buckled inwardly on the terminal block. The socket connector of any one of the preceding claims, wherein the metal casing is provided with a back cover covering the terminal block, and the back cover is provided with a downwardly extending pin. The socket connector of any one of claims 1 to 5, wherein the metal casing is provided with a back cover covering the terminal block, and the back cover is attached to a rear side of the side wall of the metal casing. The socket connector according to any one of claims 1 to 5, wherein the metal casing is provided with a back cover covering the terminal block, the metal casing has two side walls, and the back cover is two-piece The structure, the two-piece structure is respectively connected to the two side walls of the metal casing. The socket connector of any one of clauses 1 to 5, wherein the shielding plate is provided with a notch penetrating a front edge thereof and a thin portion at a front edge, the two rows of terminals including a grounding The terminal and the high-speed signal terminal are aligned with the corresponding ground terminal in the vertical direction. The socket connector according to any one of claims 1 to 5, wherein the shielding plate is provided with a thin section at the rear, and the two rows of terminals comprise a high-speed signal terminal, the thin section Align the high speed signal terminals. The socket connector of any one of the preceding claims, wherein the shielding plate is provided with two thin regions extending in the front-rear direction and a notch between the thin regions. The socket connector of any one of the preceding claims, wherein the two sides of the shielding plate extend a pair of elastic pieces adjacent to the rear end, and the elastic piece extends rearward to abut In the metal casing. The socket connector of any one of clauses 1 to 5, wherein the terminal block comprises an upper terminal module, a lower terminal module, and a tongue plate between the upper and lower terminal modules The upper terminal module includes an upper insulator and an upper terminal, and the upper terminal includes a contact portion extending from the upper insulator and arranged on the upper surface of the tongue member and a pin extending from the upper insulator; The lower terminal module includes a lower insulator and a lower terminal, and the lower terminal includes a contact portion extending from the lower insulator and arranged on a lower surface of the tongue member and a pin extending from the lower insulator. The socket connector of claim 17, wherein the shielding plate has a front portion and a rear portion, the front portion is embedded in the tongue member and the rear portion is sandwiched between the upper and lower insulators. between. The socket connector of claim 18, wherein the shielding plate is provided with a positioning port in a rear region thereof, the upper insulator is provided with a positioning hole, and the lower insulator is provided with a positioning post, and the positioning column passes through the positioning port. It is fixed in the positioning hole. The socket connector of claim 19, wherein the rear portion of the shielding plate is provided with a fixing piece bent in a direction of the lower terminal module, and the fixing piece is inserted and fixed in a fixing slit provided by the lower insulator; The shielding plate is provided with a horizontally extending extending piece between the fixing pieces, and the extending piece is positioned in a shallow recessed portion provided by the lower insulator. The socket connector according to any one of claims 1 to 5, wherein the two rows of terminals include a grounding terminal, and the contact portion of the grounding terminal is bent downward to contact the shielding plate. A plug connector for mating with a receptacle connector according to any one of claims 1 to 5, wherein the plug connector comprises an insulative housing, two rows of terminals, and a metal housing, the insulative housings having opposite sides Two side walls, two rows of terminals are respectively disposed on two side walls of the insulating body, the metal shell covers the outer surface of the insulating body; the plug connector can be inserted into the socket connector in both forward and reverse directions, and two of the shielding plates of the socket connector The side edges are respectively provided with a fastening notch; the insulating body of the plug connector is provided with a fastening member, and when the plug connector is inserted into the docking cavity of the socket connector, the fastening component of the plug connector is buckled at the fastening notch Inside. The plug connector of claim 22, wherein the plug connector comprises an inner circuit board and a cable positioning member, the cable positioning member is provided with a through hole, and the cable is connected to the internal circuit through the through hole board.