TWI685156B - Plug connector and electronic device having receptacle connector - Google Patents

Abstract

A plug connector includes an insulative housing, a front metal shell, a cable and an insulative shell. The insulative housing has a receiving cavity and two rows of contacts respectively disposed at two sides of the receiving cavity. The front metal shell closely surrounds an outer surface of the insulative housing. The cable electrically connects with the contacts. The insulative shell at least in part surrounds an outer surface of the front metal shell and cable. The insulative shell has a front face and a rear face opposite to the front face. The plug connector has a pair of screws respectively mounted at two sides thereof in a transverse direction.

Description

Plug connector and electronic equipment with socket connector

The invention relates to a plug connector and an electronic device with a socket connector, in particular to a USB Type C connector that can be inserted forward and reverse.

On August 11, 2014, the USB Association announced a new electrical connector. The plug connector can be inserted into the corresponding socket connector in both directions. The socket connector can transmit USB2.0 and USB3.1 signals. This connector is named USB Type C connector. According to the news in the industry report, the electrical connector has great potential for development in the future, and various connector manufacturers are actively developing with the system manufacturers. With the wide application of Type C, the specific structure and application scope defined in its specification can no longer meet the actual scope.

Therefore, I hope to design a new solution to improve the above problems.

The purpose of the present invention is to provide a plug connector and an electronic device with a socket connector, which can ensure good docking and fixing.

In order to solve the above technical problems, the present invention provides a plug connector, which includes an insulating body, a metal front shell, a cable and an insulating shell, the insulating body is provided with a receiving cavity penetrating forward and installed on the vertical sides of the receiving cavity Two rows of terminals, the metal front shell is tightly wrapped on the outer surface of the insulating body, the cable is electrically connected to the above terminals, and the insulating shell is at least wrapped outside the metal front shell and part of the cable , The insulating housing has a front end face and a rear end face; the plug connector is provided with a pair of bolts on both lateral sides thereof.

In order to solve the above technical problems, the present invention also provides an electronic device installed with a socket connector, the socket connector includes a plug interface and a docking tongue plate extending into the plug interface, two opposite surfaces of the docking tongue plate are provided with terminals And a shielding plate located between the two opposite surfaces, the lateral sides of the shielding plate have locking side edges, and the plug interface is provided for inserting the corresponding plug connector in both positive and negative directions; The electronic device is provided with a pair of screw holes on two lateral sides of the socket of the socket connector, and the screw holes are aligned with the mating tongue plate in the lateral direction.

In order to solve the above technical problem, the present invention also provides a plug connector, which includes a USB Type C plug connector at the front end and a cable at the rear end. The plug connector is provided with bolts beside the plug connector. The position is set to be on the horizontal center line or vertical center line of the plug interface.

Compared with the prior art, the present invention has the following effects: The bolt structure of the present invention can effectively ensure the butt holding force.

200, 200a‧‧‧plug connector

208‧‧‧Metal front shell

210‧‧‧plug connector

212、902‧‧‧Insulation body

213‧‧‧Through hole

214, 903‧‧‧ containment cavity

215‧‧‧Installation slot

216‧‧‧Terminal slot

220、414‧‧‧Terminal

222‧‧‧Contact

224‧‧‧Connection

230‧‧‧Internal circuit board

236‧‧‧Elastic board

238‧‧‧Elastic arm

239‧‧‧Insulating film

240, 310, 704‧‧‧ bolt

241,318‧‧‧Thread

242‧‧‧handle

250‧‧‧Lock fastener

252‧‧‧Lock head

254‧‧‧pin

260‧‧‧Locating parts

262‧‧‧Central slot

264‧‧‧terminal hole

266‧‧‧pin hole

270‧‧‧Cable organizer

272‧‧‧ Finisher

280‧‧‧Cable

282‧‧‧core

286‧‧‧Metal shell

288‧‧‧Metal back shell

290‧‧‧Insulated front shell

292‧‧‧Insulated back shell

296、702‧‧‧Insulation shell

2961, 804, 907‧‧‧ front face

2962‧‧‧ Rear face

297‧‧‧Through hole

298‧‧‧Bump

299‧‧‧inclined structure

300‧‧‧boots

302‧‧‧ containment space

304‧‧‧Through hole

306‧‧‧back wall

308‧‧‧Opening

312‧‧‧Front narrow

3121‧‧‧conical surface

314‧‧‧ Rear wide part

316‧‧‧Step

3181‧‧‧Expansion

320‧‧‧handle

322‧‧‧Middle

324‧‧‧ Limit slot

326, 328‧‧‧ blocking surface

400‧‧‧Box-shaped electronic equipment

402, 906‧‧‧ screw hole

410, 800, 900 ‧‧‧ socket connector

420, 810‧‧‧ circuit board

412‧‧‧ Docking chamber

415、904‧‧‧butt tongue plate

416‧‧‧Shielding board

418‧‧‧locking side edge

802‧‧‧plug interface

806‧‧‧Nut

905‧‧‧Metal shell

The first figure is a perspective view of the electrical connector combination of the first embodiment of the present invention, in which the plug connector and the socket connector of the electronic device are separated from each other; the second figure is the cross-sectional view of the first figure along the broken line II-II; the third Figure 3 is a perspective view of the plug connector in Figure 1; Figure 4 is a front view of Figure 3; Figure 5 is a partially exploded perspective view of Figure 3; Figure 6 is a perspective view of the structure of Figure 5 further exploded; Seventh figure is a further exploded perspective view of the sixth figure; the eighth figure is a further exploded perspective view of part of the structure of the seventh figure; the ninth figure is the sectional view of the third figure along the broken line IV-IV; the tenth figure is the second embodiment of the present invention The perspective view of the plug connector of the example; the eleventh figure is a partially exploded perspective view of the tenth figure; the twelfth figure is the perspective view of the eleventh figure from another angle; the thirteenth figure is the cutout of the shoe in the twelfth figure A perspective view of part of the structure; Figures 14 to 17 show the four cross-sectional status diagrams of the shoe and the bolt at the front and back positions; Figure 18 is the cross-sectional view of Figure 17 along the dotted line XV Ⅲ-XV Ⅲ; Figure 19 is a cross-sectional view of Figure 17 along the dotted line XI XX IX; Figure 20 is a perspective view of another embodiment of the present invention; Figure 21 is a perspective view of another embodiment of the present invention; and Figure 22 is an exploded perspective view of another embodiment of the present invention.

The first to ninth figures show the first embodiment. The plug connector 200 is used to interface with the receptacle connector 410 provided in the box-shaped electronic device 400 to realize the transmission of electrical signals. The plug connector of the present invention The socket connector is a USB Type C connector. The plug connector 200 can be inserted into the socket connector 410 in both forward and reverse directions. The plug connector 200 is provided with a pair of bolts on both lateral sides of the plug connector 200. The screw holes on the side fit.

The plug connector 200 includes a plug connector 210 at the front end, mainly referring to the eighth figure, the plug connector 210 includes a bladder-shaped insulating body 212 and a metal front shell 208 covering the outer surface of the insulating body, the insulating body 212 A receiving cavity 214 that penetrates forward, upper and lower rows of terminal grooves 216 on both sides of the receiving cavity 214 in the vertical direction, mounting grooves 215 on both sides of the receiving cavity 214 and penetrating the insulating body 212 laterally, and vertical The through holes 213 in the vertical direction penetrate the upper and lower side walls of the insulating body. The upper and lower terminals 220 are respectively disposed in the corresponding terminal grooves 216; each terminal 220 includes a contact portion 222 at the front end and a connection portion 224 at the rear end. The contact portion 222 extends into the receiving cavity 214 to be used with the socket connector 410 Is connected to the terminal, and the connecting part 224 is used to be mounted on the internal circuit board 230 (the seventh figure is clearly visible). A pair of metal elastic plates 236 are disposed on two opposite outer wall surfaces of the insulating body 212, and elastic arms 238 provided thereon extend through the through holes 213 provided in the insulating body and extend into the receiving cavity 214. A pair of insulating films 239 are attached to the outer wall surface of the insulating body and the elastic plate 236 to insulate and isolate the contact between the elastic plate and the terminal contact portion and the metal front case to avoid short circuit. A metal locking member 250 has a U-shaped structure and is installed in a U-shaped mounting groove 215 provided in the insulating body. The metal locking member 250 has a pair of locking heads located laterally on both sides of the receiving cavity 214 and protruding into the receiving cavity 252. A pair of insulating positioning members 260 is disposed behind the insulating body 212, which is formed with a central groove 262 for accommodating the front end of the internal circuit board 230, a plurality of terminal holes 264 for accommodating the connecting portion 224, and a pin 254 for accommodating the locking member The pin hole 266, the connecting portion 224 and the pin 254 are mechanically and electrically connected to the front end of the internal circuit board 230.

Referring to the fifth to seventh figures, the plug connector 200 further includes an internal circuit board 230, a cable 280, a metal shell component and an insulating shell component that ensure good contact between the plug connector, the internal circuit board and the cable, and the bolt 240 Wait. The specific structure of each component is introduced one by one below. The internal circuit board 230 is installed behind the insulating positioning member 260, and the connecting portions 224 and the pins 254 of the upper and lower rows of terminals and the locking member pass through the positioning member and are welded to the conductive sheet provided at the front end of the internal circuit board 230. One cable 280 through one A cable organizer 270 and a conductive sheet soldered to the rear end of the internal circuit board 230, wherein the cable organizer 270 is a two-piece type, and each organizer 272 (labeled in FIG. 9) includes a Holes (not labeled), the cable 280 located behind the cable organizer 270 includes a plurality of wire cores 282 that pass through the corresponding through holes and mechanically and electrically contact the conductive sheet provided at the rear end of the internal circuit board. Of course, the internal circuit board can also be omitted, and the cable and the terminal pin can be directly soldered. A metal middle shell 286 is installed at the rear end of the metal front shell 208 to cover the internal circuit board 230. A metal back shell 288 is installed at the rear end of the metal middle shell 286 and the front end surrounding the cable 280. An insulating front shell 290 covers the metal middle shell 286, an insulating back shell 292 covers the metal back shell 288, and a last insulating shell 296 covers the outer sides of the aforementioned insulating front shell 290, metal back shell and insulating back shell 292, only The metal front shell 208 is exposed to form the plug connector 210. The insulating housing 296 is provided with a pair of through holes 297, the through holes 297 penetrate the front and rear ends of the insulating housing 296, and a pair of bolts 240 are installed in the through holes 297. As shown in the second and third figures, the threaded portion 241 at the front end of the bolt passes through the through hole 297 and protrudes forward from the front end surface 2961 of the insulating housing 296, the rear end is provided with a handle portion 242, and the handle portion 242 is rearward The rear end surface 2962 of the insulating housing protrudes. The plug connector 210 protrudes forward from the front end of the insulating housing 296 to be connected to the corresponding socket connector 410.

Referring to the first to second figures, the socket connector 410 is mounted on the circuit board 420, and the two are arranged together in a box-shaped electronic device 400. The socket connector 410 includes a plug for receiving the plug connector 200 The docking cavity 412 of the joint 210, the docking tongue plate (not labeled) extending into the docking cavity, the upper and lower rows of terminals provided on the two opposite surfaces of the docking tongue plate, and the metal shielding plate 416 embedded in the docking tongue plate. The shielding plate 416 is provided with locking side edges 418 on both sides of the shielding plate 416 for locking with the locking head 252 of the plug connector. The device 400 is also provided with a pair of screw holes 402 for inserting and fixing bolts 240 on the plug connector.

It can be understood that, in this embodiment, the plug connector 200 is stably fixed to the socket connector 410 through the cooperation of a pair of bolts 240 and a pair of screw holes 402, to avoid that improper external force may cause the plug connector 200 to self-receive the socket connector 410 Up off. As shown in the fourth figure, the pair of bolts 240 are symmetrically arranged on both sides of the plug connector 210 in the lateral direction, that is, the plug connector 210 and the pair of bolts 240 have a common centerline, so that the plug connector 200 can still be guaranteed The positive and negative inserts. It should be noted that the size of the bolt 240 is slightly smaller than or equal to the plug connector 210, the size of the handle portion 242 is larger than the plug connector 210, that is, the vertical dimension of the threaded portion is the same as the insulating body, The size of the handle in the vertical direction is larger than the size of the insulating body, which is convenient for the user. Since the bolt 240 is located on both sides of the plug connector 210, the threaded portion and the locking head 252 are substantially aligned with each other in the lateral direction, that is, the locking head The 252 and the bolt 240 have a common center line, so that the effective fixing between the locking head 252 and the locking side edge 418 can be ensured. Correspondingly, the screw holes 402 of the receptacle connector 410 are symmetrically located on both sides of the mating cavity 412 in the lateral direction.

The tenth to nineteenth figures show the second embodiment of the present invention, which mainly shows the plug connector 200a. The structure of the plug connector 200a is substantially the same as that of the first embodiment. The plug connector is connected to the metal shell and the insulating shell. The element structure is the same, so the same reference numerals are used as in the first embodiment, and will not be described in detail here. The structure of the insulating casing 296 is substantially the same, only the partial structure and shape are different. The specific structure of the different parts is mainly described below.

Referring to the tenth to twelfth figures, the insulating shell 296 covers the insulating front shell, the metal back shell and the insulating back shell. The metal front shell is exposed at the front end to form the plug connector 210. The insulating shell 296 is provided with a bump 298 on one outer wall surface. Different from the first embodiment, the insulating housing 296 of this embodiment is not installed with bolts on both sides, but is further covered with a shoe portion 300 on the outside of the insulating housing 296, and a pair of bolts 310 are installed on the shoe portion, The shoe 300 can slide along the insulating housing 296 in the front-rear direction, and its cooperation with the bolt 310 can realize that the plug connector 300 can be the same as the socket connector with a screw hole (the specific structure is the same as the first embodiment, and this is not the place (Details will be described in detail). Butt joints can also be docked with socket connectors without screw holes, which will be described in detail below.

Continuing to refer to the tenth to twelfth figures, the shoe 300 is provided with a storage space 302 for accommodating the insulating shell 296 and a pair of through holes 304 located on both sides of the storage space. The receiving spaces 302 communicate with each other, so that the distance between the two through holes 304 can be reduced. The shoe 300 is integrally provided with a rear wall 306 behind the storage space 302. After the boot is sleeved on the insulating case 296, the rear wall 306 is located at the rear end of the insulating case 296 and the rear case; when the boot 300 moves forward to the front end of the insulating case, the boot 300 can be prevented from moving forward excessively. The rear wall 306 is provided with an opening 308 from which the cable 280 extends rearward. A pair of bolts 310 are housed and fixed in the through hole 304, and are movable in the front-rear direction.

Referring to FIG. 13, each through hole 304 has a front narrow portion 312 and a rear wide portion 314 with a stepped portion 316 formed therebetween, and the front narrow portion 312 is provided with a tapered surface 3121 structure at the rear portion thereof. Correspondingly, the bolt 310 includes a screw portion 318 at the front end, a handle portion 320 at the rear end, and an intermediate portion 322 connecting the two in the front-rear direction. The screw portion 318 and the intermediate portion 322 are mainly accommodated in the corresponding through holes 304, and the handle portion 320 It is always behind the rear wall 306. In this way, when the bolt 310 locks the shoe part 300 forward, the handle part 320 presses forward tightly against the rear wall 306, and the middle part 322 presses forward tightly against the step part 316. On the other hand, when the bolt 310 is in the rear position, the expansion portion 3181 provided at the rear of the screw portion 318 presses backward against the tapered surface 3121 structure of the front narrow portion 312.

The shoe 300 of this embodiment can slide along the insulating housing 296 within a certain range in the front-rear direction. In order to achieve this function, a limiting groove 324 is provided on the inner side of the shoe 300, and the protrusion 298 of the insulating housing is accommodated in the limiting groove 324. The operation and limitation of the shoe 300 in the front-rear direction through the cooperation of the protrusion 298 and the limit groove 324, the front end blocking surface 326 can effectively limit the backward movement of the shoe, and the rear end blocking surface 328 is inclined, which is inclined with the projection 298 The structure 299 (see Figure 19) cooperates to facilitate the assembly of the boot into the housing. The convex block 298 may also be provided with an interference structure like a rib, and the groove is provided with a slit near the front and rear positions, so that the rib and the slit cooperate to fix the shoe 300 at the front and rear positions. It can be understood that, in this embodiment, the rear wall 306 cooperates with the rear end of the insulating housing to prevent the shoe from excessively shifting forward, and the rear wall 306 is equivalent to a blocking surface.

The fourteenth to seventeenth figures show four states in which the shoe 300, the insulating case 296 and the bolt slide back and forth. The fourteenth figure shows that the shoe 300 is located at the front end of the insulating housing 296, and the bolt 300 is located at the front end of the shoe. The above positional relationship is defined as the first pre-position. At this time, the threaded portion 318 of the bolt projects forward from the insulating housing The front end surface of the 296 is located on both lateral sides of the plug connector 210, and it can be inserted into a screw hole (not shown) of the socket connector. In the fifteenth figure, the bolt 310 slides backward to the rear end of the shoe 300, but the shoe does not slide and remains at the front end of the insulating housing 296, defining the above positional relationship as the first rear position, where the threaded portion of the bolt 310 It is located inside the boot, that is, the threaded portion 318 does not protrude from the front end surface of the boot portion and the front end surface of the insulating case. In the sixteenth figure, the shoe part 300 slides backward to the rear end of the insulating case 296, the screw part 318 does not slide but is exposed at the front end of the shoe part due to the back sliding of the shoe part, and the above-mentioned positional relationship is positioned as the second front position. In the seventeenth figure, the bolt 310 slides backward and is hidden in the boot, defining the positional relationship as the second rear portion.

It can be understood that if the plug connector is to be inserted into the socket connector without a screw hole, two movements will be required to complete the backward movement of the bolt 310 and the shoe, to avoid interference of the bolt and the socket connector, first, the rear of the shoe Move to the rear position of the boot, as shown in Figure 16, and then slide the bolt 310 to the rear position of the bolt. As shown in Figure 17, at this time, the shoe 300 can achieve a certain holding force with the insulating shell 296 by means of ribs and other similar interference structures thereon, and the thread can be tapped by the expansion portion 318 and the taper The surface 3121 realizes the holding force with the shoe. In addition, the traditional plug connector has an immovable shoe or housing, and the front threaded portion of the bolt protrudes forward from the front end surface of the insulating housing, as shown in Figure 14, so it cannot be connected to a socket without a threaded hole To achieve docking.

Another feature of this embodiment is that the through hole 304 is as close as possible to the receiving space 302 in the lateral direction, and penetrates the receiving space 302 in the lateral direction to reduce the distance between the two bolts. The pitch of this structure can be as small as 14 mm. The through hole in the first embodiment is formed directly on the insulating case, and the through hole is hermetically sealed in the lateral direction

The twentieth figure shows another embodiment of the plug connector similar to the first embodiment, the insulating housing 702 is provided with a bolt 704, and the nut is located approximately on the vertical center line of the plug connector. It can be understood that, the device installed with the socket connector is provided with a pair of screw holes that cooperate with the bolt 704. The screw holes are respectively located on the vertical center line and on the upper and lower sides of the plug connector, so as to ensure that the plug connector can be inserted into the corresponding socket connector in both directions. It can be understood from the above that the bolt is installed on the side of the plug connector, and the position of the bolt can be set to be on the horizontal center line of the interface, or it can be set on the vertical center line, which is convenient for plugging in both directions. .

The twenty-first figure shows a socket connector 800 according to another embodiment. The socket connector 800 is mounted on a circuit board 810 and includes a plug interface 802 extending forward from the front end face 804 and a pair of nuts 806 extending from the front end face 804 The nut 806 has screw holes in it, and the nut 806 is located on both sides of the socket 802 and is used to receive the bolt of the plug connector. Please note that the length of the nut 806 in the front-rear direction is similar to the depth of the plug connector, and the peripheral dimension of the nut in the up-down direction is similar to the height of the plug connector. In this way, the entire device structure is relatively smart.

The twenty-second figure shows another embodiment of the socket connector. The insulating body 902 of the socket connector 900 has two sockets spaced up and down from each other in the vertical direction. The socket defines a receiving cavity 903. A docking tongue plate 904 extends forward into the receiving cavity 903, and the lower insertion interface receives a complete and independent connector. A metal shell 905 is inserted into the docking cavity 903 from front to back to surround the docking tongue plate 904. A pair of screw holes 906 are provided on both sides of the butt tongue plate 904. Unlike the previous embodiment, the socket and the nut are located behind the front end surface 907 of the insulating body.

In summary, the present invention has indeed met the requirements of the invention patent, and the patent application has been filed in accordance with the law. However, the above is only a preferred embodiment of the present invention, and it cannot be used to limit the scope of the present invention. The equivalent modifications or changes made by those with ordinary knowledge in the technical field in accordance with the spirit of the present invention are still covered by the appended patent application. For example, the dispensing area in the second embodiment is a rough surface and The improved features such as rough surface formation are also applicable to the first embodiment.

200‧‧‧plug connector

240‧‧‧bolt

296‧‧‧Insulation shell

400‧‧‧Electronic equipment

402‧‧‧Screw hole

410‧‧‧Socket connector

412‧‧‧ Docking chamber

Claims (9)

A plug connector can be inserted into a socket connector in two directions, the plug connector includes an insulating body, a metal front shell, a cable and an insulating shell, the insulating body is provided with a receiving cavity that penetrates forward and Two rows of terminals installed on the vertical sides of the receiving cavity, the metal front shell is tightly covered on the outer surface of the insulating body, the cable is electrically connected to the above terminals, and the insulating shell is at least covered with metal The outer part of the front shell and the cable, the insulating shell has a front end surface and a rear end surface, and the metal front shell protrudes forward from the front end surface of the insulating shell to form a plug connector; wherein the plug connector has two A pair of bolts are installed on the side, the plug connector and the pair of bolts have a common center line in the lateral direction; the insulating housing is provided with a pair of through holes, the through holes penetrate the front end surface and the rear of the insulating housing The end surface, the bolts are respectively installed in the through holes; the bolts include a threaded portion at the front end and a handle portion at the rear end, the threaded portion passes through the front end surface of the insulating housing and always protrudes from the The front end face of the insulating case, and the size of the bolt is larger than the size of the through hole at the front end face; the handle part protrudes rearward from the rear end face of the insulating case and the handle part is larger than the rear end face The size of the through hole. The plug connector as described in item 1 of the patent application scope, wherein the plug connector includes a locking member, and the locking member includes a pair of locking heads located on two lateral sides of the receiving cavity and protruding into the receiving cavity, The locking head and the bolt are aligned with each other in the lateral direction. The plug connector as described in item 2 of the patent application scope, wherein the socket connector includes a plug interface and a butt tongue plate extending into the plug interface, two opposite surfaces of the butt tongue plate are provided with terminals and located on two The shielding plate between the opposite surfaces, the lateral sides of the shielding plate have locking side edges, and the socket connector is provided with a pair of screw holes on the outer sides of the lateral sides for interlocking with the bolts. The butt tongue plates are aligned in the lateral direction. The plug connector as described in item 3 of the patent application range, wherein the vertical dimension of the threaded portion is the same as the insulating body, and the vertical dimension of the handle portion is larger than the size of the insulating body. The plug connector as described in item 1 of the patent application scope, wherein the rear end of the insulating body is provided with an internal circuit board and a cable organizer, the cable passes through the cable organizer and is soldered behind the internal circuit board End, the two rows of terminals are soldered to the front end of the internal circuit board. A plug connector can be inserted into a socket connector in two directions, the plug connector includes an insulating body, a metal front shell, a cable and an insulating shell, the insulating body is provided with a receiving cavity that penetrates forward and Two rows of terminals installed on the vertical sides of the receiving cavity, the metal front shell is tightly covered on the outer surface of the insulating body, the cable is electrically connected to the above terminals, and the insulating shell is at least covered with metal The outer part of the front shell and the cable, the insulating shell has a front end surface and a rear end surface, and the metal front shell protrudes forward to protrude from the front end surface of the insulating shell to form a plug connector; the plug connector is on both lateral sides A pair of bolts are installed; wherein the plug connector includes a shoe portion sleeved on the insulating housing, the shoe portion moves forward and backward along the insulating housing, and the shoe portion is provided with through holes penetrating back and forth on both lateral sides thereof , The bolt is installed in the through hole and moves forward and backward along the shoe portion. The plug connector according to item 6 of the patent application range, wherein the through hole has a front narrow portion and a rear wide portion and a step portion formed therebetween, the front narrow portion is provided with a tapered shape at the rear portion thereof Surface structure; an intermediate portion is connected between the threaded portion and the handle portion; the rear portion of the threaded portion is provided with an expansion portion that cooperates with the tapered surface structure to function as a front and rear limit. The plug connector as described in item 7 of the patent application scope, wherein the inner side surface of the shoe is provided with a limiting groove, and the insulating housing is provided with a convex block accommodated in the limiting groove, the convex block and the limiting position The cooperation of the groove realizes the limit in the front and back directions. A plug connector includes an insulating body, a metal front shell, a cable and an insulating shell. The insulating body is provided with a receiving cavity penetrating forward and two rows of terminals installed on the vertical sides of the receiving cavity. The shell is tightly wrapped on the outer surface of the insulating body, so The cable is electrically connected to the above-mentioned terminal, the insulating shell covers at least a part of the outer side of the metal front shell and the cable, the insulating shell has a front end surface and a rear end surface, and the metal front shell protrudes forward from the insulating shell Forming a plug connector; wherein, the plug connector is installed with a bolt on the side of the plug connector, and the position of the bolt is set on the vertical center line of the plug interface; the bolt includes the front end Threaded portion and a handle portion at the rear end, the threaded portion penetrates the front end surface of the insulating housing and always protrudes from the front end surface of the insulating housing, and the size of the bolt is larger than the through hole at the front end surface The size of the handle part protrudes rearwardly of the rear end face of the insulating housing and the size of the handle part is larger than the size of the through hole at the rear end face.

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