TW202230907A - Plug connector - Google Patents

Abstract

A plug connector includes a contact module composed of a pair of plug contact units. Each unit includes a row of contacts arranged in a longitudinal direction and an insulator for fixing the contacts. Each contact includes a contacting portion extending forwardly and a tail extending backwardly. A row of contacts include a plurality of differential-pair contacts and grounding contacts alternately arranged with each other wherein the rear ends of the grounding contacts are unified together with a transverse bar. The wires include inner conductors connected to the tail of the differential-pair contacts and braiding layers mechanically and electrically connected to the transverse bar. The plug connector further includes a pair of grounding bars attached to the corresponding plug contact units. The grounding bar forms front tabs connected to the tails of the grounding contacts and rear tabs connected to the braiding layers of the wires. The grounding bar of the present invention has multiple grounding tabs, which can effectively improve electric performance.

Description

plug connector

The present invention relates to a plug connector.

The plug connector is generally connected to the cable, and the receptacle connector is generally soldered to the circuit board. At present, the plug connection generally uses daughter cards, that is, gold fingers are provided on different edges of a circuit board, and the gold fingers are connected by lines. connected. However, plug connectors using daughter cards will be larger in size. Nowadays, more and more systems use cables to replace circuit boards for signal transmission in high-speed systems, but inevitably increase the requirements for high-frequency performance.

Therefore, there is a need to provide an improved electrical connector assembly.

The purpose of the present invention is to provide a plug connector with improved electrical performance.

To achieve the above object, the present invention can adopt the following technical solutions:

A plug connector includes a terminal module and a cable, the terminal module includes a pair of subunits, each of the subunits includes a row of terminals arranged in a longitudinal direction and an insulator for fixing the terminals, the The terminal includes a differential pair terminal and a ground terminal, each terminal includes a contact portion extending forward and a tail portion extending backward, the tail portion of the ground terminal is integrally connected to a horizontal bar, and the cable includes soldering on the differential pair. a conductive core at the tail of the terminal, and a shielding layer mechanically and electrically connected to the horizontal strip; the plug connector further includes a pair of grounding pieces, each grounding piece is fixed to a corresponding subunit, and the grounding piece includes a plurality of ground pieces A front spacer and a plurality of rear spacers, the rear spacer is connected to the shielding layer of the corresponding cable, and the front spacer is connected to the tail of the corresponding ground terminal.

Compared with the prior art, the present invention has the following effects: the grounding member has a plurality of grounding points, which can effectively improve the electrical performance.

In order to facilitate a better understanding of the purpose, structure, features and effects of the present invention, the present invention will now be further described with reference to the accompanying drawings and specific embodiments.

Referring to FIGS. 1 to 13, the first embodiment of the present invention discloses an electrical connector assembly 10, the electrical connector assembly 10 includes a receptacle connector 100 and a plug connector 200 that are docked with each other, the receptacle connector It is installed on a circuit board (not shown), so it can also be called a board end connector, and the rear end of the plug connector 200 is connected with a cable 250, so it can also be called a wire end connector, which is inserted into the The receptacle connector 100 completes the electrical connection. In this embodiment, the two connectors are connected in a vertical direction, that is, the connection direction is the vertical direction, and the cable extension direction of the plug connector is perpendicular to the connection direction of the connector.

Referring to FIGS. 3 to 11, the plug connector 200 includes a terminal module 210 and a pair of shells 280 and 282. The pair of shells forms a receiving space 283. The terminal module 20 is received in the receiving space 283, and the shell 280 is provided with Some of the pair of clasping slits 285 accommodate the clasping blocks 286 provided on the other shell 282 . The housing 280 is provided with an opening 281 that allows the cable 250 to extend therethrough. The locking member 290 includes a pair of fixing portions 292 , an operating portion 294 extending from the fixing portions 292 , and a locking arm 292 . The locking arm 295 is located between the pair of fixing portions 292 . The inner plate 2921 of the fixing portion 292 is fixed in the fixing slot 2821 provided on the outer side of the outer casing 282 . The locking arm 292 is an outward elastically deformable structure, and a pair of locking protrusions 296 are provided at the end, and the locking protrusions 296 protrude toward the terminal module 210 . The terminal module 210 is connected to a row of cables 250 , and each cable includes a conductive core 252 and a shielding layer 254 . The terminal module 210 includes a pair of subunits 220 stacked on each other, and a shielding plate 230 is sandwiched between the two subunits 220 .

Each subunit 220 includes a set of terminals 222 and an insulator 224 fixed to the terminals by injection molding. The terminals 222 are arranged in a row, including a plurality of ground terminals 227 and differential pair terminals 229 , each adjacent two differential pair terminals constitute a differential terminal pair, and the ground terminals and differential terminal pairs are arranged alternately with each other. The differential pair terminals 229 have solder tails 228 connected to the conductive cores 252, and all the ground terminals 227 are integrally connected to a bar 238 to form an integrated structure, that is, the tails 228' of the ground terminals are integrally connected to the bar 238. The horizontal bar 238 is aligned with and abuts against the shielding layer 254 , and a gap 226 is provided at the rear of the horizontal bar for receiving or placing the cable 250 .

The contact portion 2221 of the terminal 222 is exposed in the slit 237 provided by the insulator 224, so that it can be butted with the terminal 134 of the socket connector 100. Where it is necessary to avoid confusion, the terminal 222 of the plug connector can be named For the plug terminals 222 , the terminals 134 of the receptacle connector are named receptacle terminals 134 . A channel (not numbered) is formed between the plurality of spacer ribs 239 of the insulator 224 for receiving the tail 228 and the conductive core 252 of the cable. In the channel, the tail and the conductive core are welded to each other. A pair of locking fingers 223 are located on both sides of the butt tongue plate 2241 and are spaced apart from the butt tongue plate 2241. The locking fingers are formed by extending forward from the insulator, and the rear end of the insulator is formed as a support portion 2242 for placing Horizontal bars, cable front ends, etc. The rear end of the insulator is provided with a notch 225 for accommodating the cable 230 . The insulator 224 is provided with a column 231 and a hole 233, which are used for fixing with the hole 233 and the column 231 of another insulator.

A pair of grounding members 240 are respectively fixed on the corresponding insulators 224 , and the holes 244 provided on each grounding member 240 are fixed with each other with the cylinders 231 provided on the insulators. Each grounding member 240 is further formed with a plurality of rear spacers 242 . The rear spacers 242 can be formed by punching and bending, leaving residual holes 241 , and the solder can pass through the residual holes 241 to separate the rear spacers 242 , The shielding layer 254 and the horizontal strips 238 are welded to each other. Structurally, the shielding layer 254 is sandwiched between the ground member 240 and the rail 238 .

The differential pair terminals 229 are initially integrally connected to the horizontal bar 238, and after injection molding, the tail portion 228 is cut off from the horizontal bar. The grounding member 240 is further provided with a front spacer 247 which is mechanically and electrically connected to the tail portion 228' of the ground terminal, and the front spacer and the rear spacer are aligned with each other in the front-rear direction. The spacer rib 239 in the insulator between the differential pair terminal 227 and the ground terminal 229 is removed to fully expose the ground terminal tail 228'. In this embodiment, the spacer ribs on the tail portion 228' of the ground terminal are removed, so that the tail portion 228' is exposed. The tail portion 228 ′ of the ground terminal 227 is mechanically and electrically connected, so as to improve the electrical grounding performance. Regardless, the spacer ribs 239 of the insulator 224 space the differential terminal pair apart, ensuring soldering.

Referring to FIGS. 12 to 13, the socket connector 100 includes a body 110 made of insulating material, a terminal module 130 located in the body, and a metal shell 120 covering the body. The terminal module 130 includes a For subunit 131, two subunits are stacked laterally on each other. Each sub-unit 131 includes a terminal 134 and an insulator 132 formed by injection molding. The cylinder 136 and the hole 138 provided on the insulator 132 are fixed to each other with the hole and the cylinder of the insulator of another sub-unit. A pair of grounding sheets 140 commonly cover the two subunits 131 . Each grounding piece 140 is provided with a plurality of elastic fingers 142 , and the elastic fingers 142 pass through the slits provided in the insulator and abut against the ground terminals in the terminals 134 . The insulating body 110 is formed with a mating cavity 114 extending along the longitudinal direction for receiving the mating tongue 2241 of the terminal module 210 of the plug connector 200 . A plurality of grooves 115 are formed in the body 110 for receiving the terminals 134 one by one.

The two end walls 112 of the main body 110 are provided with a pair of locking grooves 119 for receiving the locking fingers 223 of the sub-unit 220 of the plug connector. The mating ribs 118 are formed on the end walls 112 and are provided with mating openings on the metal shell 120 124 are fixed in cooperation with each other. The metal shell 120 is formed with a locking space 122 for receiving the locking member 290 of the plug connector. The locking space 122 is provided with a pair of locking holes 126 on one side of the locking space 122 for connecting with the locking protrusions of the locking member 290 . 296 snapped together. The metal casing 120 is provided with a notch 127 for allowing the lock arm 295 of the corresponding lock member to pass through, and the lock hole 126 is located below the notch 127 . The fixing portion 292 includes an inner plate 2921 and an outer plate 2922 . The inner plate 2921 is fixed in the fixing slot 2821 , and the outer plate 2922 is accommodated in the locking space 122 . On the outside, the locking protrusion 292 enters the locking hole 126 .

Figure 14 shows the second embodiment, which is mostly the same as the first embodiment, and the same elements are given the same reference numerals and will not be described in detail. In the fourteenth figure, a transverse rib 2811 is connected above the opening 281, and in the third figure, there is no transverse strip, and the opening 281 penetrates upward.

Figures 15 to 20 show the electrical connector assembly 20 of the third embodiment. The receptacle connector 300 is horizontally mounted on the circuit board, and the plug 400 is mated to the receptacle connector 400 in a horizontal direction. The extension direction of the cable and the mating direction of the connector are parallel to each other. The basic structures of the plug connector and the socket connector are the same as those of the first embodiment, and adaptability changes are mainly made for different extension directions.

The body 310 is provided with a docking cavity 314 penetrating forward, the docking cavity is a longitudinally extending structure, and terminal slots 312 are provided on both sides of the docking cavity. The two end arms of the body are provided with locking grooves 319 that are engaged with the locking fingers of the plug connector.

The metal shell 320 covers the body 310 , and the metal shell 320 includes a lock space 322 for accommodating the lock piece 420 of the plug connector. Locking hole 326. The opening 324 provided on the metal shell is fixed with the protrusion 318 provided on the end wall of the main body.

The rear end of the main body is provided with a receiving cavity 316 which communicates with the docking cavity 314, and two grooves 311, 313 and a hole 317 are arranged at the rear of the main body, which are fixed to the bumps 356, 359 and 346 of the terminal module. The terminal module 330 includes two sub-units 340 and 350 and a grounding unit 360 sandwiched between the two sub-units. The upper sub-unit 340 includes a plurality of terminals 344 and an insulator 342 integrally formed on the terminals. The bumps 346 and 349 are formed on the on insulator 342. The lower subunit 350 includes a plurality of terminals 354 and an insulator 352 integrally formed on the terminals, and the bumps 356 are formed on the insulator 352 . The rear end of the insulator 352 is provided with a recessed area 358 . The grounding unit 360 includes a shielding plate 366 made of metal and an insulator 362 that is injection-molded on the grounding plate. The three units are assembled from top to bottom, and the rear end of the ground unit is accommodated in the recessed area 358 .

The plug connector 400 includes a pair of housings 410, 412 and a terminal module 430 located within the housings. The terminal module 430 includes a pair of subunits 440 and a shielding plate 480 sandwiched between the subunits. The structure of the subunits is substantially the same as that of the first embodiment, and will not be described in detail. The grounding member 470 is fixed to the subunit, and includes a spacer 470, the spacer separates the cables, and at the same time, the spacer is welded with the horizontal bar integrally connected to the ground terminal. The grounding member is fixed to the column provided on the insulator of the subunit through the openings 474 at both ends of the grounding member. The cable 490 at the rear includes a conductive core 492 at the center and a shielding layer 494 surrounding the conductive core.

To sum up, the present invention complies with the requirements of an invention patent, and a patent application can be filed in accordance with the law. However, the above descriptions are only preferred embodiments of the present invention, and the scope of the present invention is not limited to the foregoing embodiments. Equivalent modifications or changes made by those skilled in the art of the present invention in accordance with the spirit of the present invention are all applicable. Should be covered within the scope of the following patent applications.

10: Electrical connector combination 210: Terminal module         250: Cable 100: socket connector 220: Subunits 252: Conductive core 110: Ontology 222: Terminals 254: Masking Layer 112: end wall 2221: Contact part 280: Shell 114: Butt cavity 223: Locking Finger 281: Opening 115: Channel 224: Insulator 282: Shell 118: Matching Ribs 2241: Butt tongue plate 283: Containment Space 119: lock slot 2242: Support Department 120: metal shell 225:Gap 285: Button Seam 122: Lock space 226:Gap 286: Buckle Block 124: With the mouth 227: Ground terminal 2811: Transverse ribs 126: lock hole 228, 228': welding tail 2821: Fixed seam 127: Gap 229: Differential pair terminal 290: Locks 130: terminal module 230: shielding plate 292: Fixed part 131: Subunit 231: Cylinder 2921: inner plate 132: Insulator 233: Holes 2922: Outer panel 134: socket terminal 238: horizontal bar 294: Operation Department 136: Cylinder 239: Spacer ribs 295: Locking Arm 140: grounding piece 240: Grounding piece 296: Locking Convex 142: Elastic Finger 244: Hole 241: residual hole 242: rear spacer 247: Front Septum 200: Plug Connector 20: Electrical connector combination 326: Lock hole 300: socket connector 330: terminal module 366: Shield plate 310: Ontology 340: Subunit 400: Plug 311: Channel 342: Insulator 410: Shell 312: Terminal slot 344: Terminals 412: Shell 313: Channel 346:Bumps 420: Locks 314: Butt cavity 350: Subunit 430: Terminal module 316: Containment chamber 354: Terminals 440: Subunit 317: Hole 352: Insulator 470: Grounding 318:Bumps 356:Bumps 474: Opening 319: lock slot 358: Depressed area 480: shielding plate 320: metal shell 359:Bumps 490: Cable 322: Lock space 360: Ground unit 492: Conductive core 324: Opening 362: Insulator 494: Masking Layer

The first figure is a perspective view of the electrical connector assembly according to the first embodiment of the present invention, wherein the socket connector and the plug connector are separated from each other; The second figure is a schematic cross-sectional view of the two connectors after the butt joint of the first figure; The third figure is an exploded perspective view of the plug connector in the first figure; The fourth figure is an exploded perspective view of the third figure from another angle; Figure 5 is a perspective view of the further disassembly of the terminal module and the grounding member in Figure 4; The sixth figure is a perspective view of the further dismantling of the fifth figure; Figure 7 is a perspective view of the terminal module in Figure 5; The eighth picture is a partial enlarged view of the seventh picture; The ninth figure is a perspective view of the further dismantling of the terminal module in the fifth figure; Figure 10 is a three-dimensional view of the terminals and bars in Figure 9; The eleventh figure is a top view of the seventh figure; Figure 12 is an exploded perspective view of the socket connector in Figure 1; Figure 13 is an exploded perspective view of the terminal module and the grounding plate in Figure 12; Figure 14 is an exploded perspective view of the plug connector according to the second embodiment of the present invention; FIG. 15 is a perspective view of a plug connector according to a third embodiment of the present invention, wherein the receptacle connector and the plug connector are separated from each other; Figure 16 is a schematic cross-sectional view of the two connectors in Figure 15 after they are connected; Figure 17 is an exploded perspective view of the socket connector in Figure 15; Figure 18 is an exploded perspective view of the second unit in Figure 17; Figure 19 is an exploded perspective view of the further dismantling of Figure 17; and Figure 20 is an exploded perspective view of the plug connector in Figure 15.

210: Terminal module

220: Subunit

231: Cylinder

240: Grounding

241: residual hole

242: rear spacer

244: Hole

247: Front Septum

Claims (10)

A plug connector includes a terminal module and a cable, the terminal module includes a pair of subunits, each of the subunits includes a row of terminals arranged in a longitudinal direction and an insulator for fixing the terminals, the The terminal includes a differential pair terminal and a ground terminal. Each of the terminals includes a contact portion extending forward and a tail portion extending backward. The tail portion of the ground terminal is integrally connected to a horizontal bar. The conductive core at the tail of the differential pair terminal, and the shielding layer mechanically and electrically connected to the horizontal bar; wherein the plug connector further comprises a pair of grounding pieces, each of the grounding pieces is fixed on the corresponding sub-unit, so that the The grounding piece includes a plurality of front spacers and a plurality of rear spacers, the rear spacers are connected to the shielding layers corresponding to the cables, and the front spacers are connected to the tails corresponding to the ground terminals. The plug connector of claim 1, wherein the front spacer and the rear spacer are both perpendicular to the longitudinal direction. The plug connector of claim 1, wherein the front spacer and the rear spacer are formed by punching and bending from the grounding member, and a residual hole is formed. The plug connector of claim 1, wherein the rear spacers space the shielding layers of adjacent said cables from each other, and the front spacers space apart the conductive cores of adjacent said cables. The plug connector of claim 1, wherein the insulator of each subunit is provided with a spacer rib, and the spacer rib separates the tails of two adjacent differential pairs of terminals, and the connection terminals are connected to the differential pair. No spacer ribs are provided between the tails of the terminals. The plug connector of claim 1, wherein the shielding layer is sandwiched between the horizontal bar and the corresponding ground member. The plug connector of claim 1, wherein the plug connector includes a housing surrounding the terminal module and a shielding plate sandwiched between the two subunits. The plug connector of claim 1, wherein the front spacer and the corresponding rear spacer are aligned with each other in the front-to-rear direction. The plug connector of claim 1, wherein the tails of the differential pair terminals are first integrally connected to the horizontal bars, and after the insulator is injection-molded on the terminals, the tails of the differential pair terminals are separated from the The horizontal bar is cut off. The plug connector of claim 1, wherein the terminal module is provided with a mating tongue plate and locking fingers located on both sides of the mating tongue plate along the longitudinal direction, and the contact portions of the terminals are arranged in the The docking tongue plate, the locking finger and the docking tongue plate are spaced apart from each other.

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