CN2587088Y - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, which comprises socket connectors (100, 300) and plug connectors (200, 400), wherein, the socket connectors comprise insulation bodies (110, 310), a plurality of isolating devices (130, 350) contained in the insulation bodies, and a plurality of built-in printed circuit boards (120, 320), wherein, the isolating devices comprise insulation boards (131, 3113), a plurality of signal terminals (132, 330), and shielding boards (133, 340); the built-in printed circuit boards comprise assembling terminals (124, 324) and butting terminals (123, 323), which are contained in the insulation boards so as to electrically connect the signal terminals and the shielding boards; the plug connectors are used for electrically connecting the built-in circuit boards and comprise insulation bodies (210, 410) and a plurality of isolating devices contained in the insulation bodies.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to a high-density electric connector with a built-in printed circuit board.

【Background technique】

To assemble several printed circuit boards together, a bottom board is usually used to connect other printed circuit boards called sub-boards. The bottom board is usually equipped with a number of first connectors, and the conductive lines of the bottom board are electrically connected to the signal terminals of the connectors. to transmit signals, and the daughter board is provided with a second connector docked with the first connector. In this way, signal transmission can be performed between mutual daughter boards.

The signal processing system has strict requirements on the design of electrical connectors, especially the electrical connectors connecting the backplane and sub-board. In order to meet the increasing demand for integration and high speed, electrical connectors are required to have high-density terminals. However, the high-density terminals of the electrical connector also increases the difficulty of assembling the electrical connector with the base board or daughter board and the difficulty of mating the connectors on the base board with the connectors on the daughter board.

US Patent No. 5,975,921 discloses a high-density electrical connector that solves the problem of assembling the high-density electrical connector and a printed circuit board.

US Patent No. 6,220,896 discloses a high-density electrical connector with striplines to reduce series interference between signal terminals.

US Patent No. 6,227,882 discloses a high-density electrical connector that balances the bonding force between terminals and mating electrical connectors.

US Patent No. 6,299,484 discloses a high-density electrical connector, which is provided with a shielding housing that holds the electrical connector and connects with some terminals.

US Pat. No. 6,179,663 and US Pat. No. 6,206,729 both disclose a high-density connection system, which adopts multiple grounding methods to reduce or eliminate erroneous signals affecting high-speed transmission between terminals.

However, none of the above-mentioned patents addresses the difficulty of assembling high-density electrical connectors. Therefore, it is necessary to invent an electrical connector to improve the above disadvantages.

【Content of invention】

The purpose of the utility model is to provide a high-density electrical connector, which can reduce the insertion force of the butt plug connector.

To achieve the above object, the utility model adopts the following technical solution: the electrical connector assembly includes a socket connector and a plug connector docked with the socket connector. The socket connector includes a first insulating body, a plurality of first isolating devices accommodated in the first insulating body, and a plurality of built-in printed circuit boards provided with butt ends and assembly ends. Each first isolation device includes a first insulating board, a plurality of first signal terminals assembled on one side of the insulating board, and a first shielding board assembled on the first insulating board. The first shielding plate is provided with a plurality of first elastic pieces and first hanging pieces. The first elastic pieces and the first hanging pieces are respectively arranged on two sides of the first insulating plate and arranged in a staggered manner with the first signal terminals. The built-in printed circuit board is clamped between two adjacent first insulating plates, and is electrically connected with the first signal terminal, the first elastic piece of the first shielding plate, and the first vertical piece of the adjacent first shielding plate. The plug connector includes a second insulating body and a plurality of second isolation devices accommodated in the second insulating body. Each second isolation device includes a second insulating board, a plurality of second signal terminals assembled to one side of the second insulating board for electrically connecting the built-in printed circuit board, and a second shielding board assembled to the second insulating board. The second shielding board is provided with a plurality of second elastic pieces and second hanging pieces connected with the built-in printed circuit board, and the above-mentioned second signal terminals, second elastic pieces and second hanging pieces are arranged in a staggered manner.

Compared with the prior art, the utility model staggers the interfering ends of the elastic pieces, the vertical pieces and the signal terminals. When the socket connector and the plug connector are assembled, the butt end of the built-in printed circuit board and the plug connector are subsequently connected. The insertion force into the receptacle connector is significantly reduced.

【Description of drawings】

Fig. 1 is a three-dimensional exploded view of the assembly of the high-density electrical connector assembly and the printed circuit board of the present invention.

Fig. 2 is a three-dimensional exploded view of another viewing angle of the assembly of the high-density electrical connector assembly and the printed circuit board of the present invention.

Fig. 3 is a three-dimensional exploded view of the assembly of the high-density electrical connector assembly and the printed circuit board of the present invention from a third perspective.

Fig. 4 is a three-dimensional assembly diagram of the assembly of the high-density electrical connector assembly and the printed circuit board of the present invention.

FIG. 5 is an exploded perspective view of the isolating device and the built-in printed circuit board of the socket connector of FIG. 1 .

FIG. 6 is an exploded perspective view from another perspective of the isolating device and the built-in printed circuit board of the socket connector of FIG. 1 .

FIG. 7 is a perspective exploded view of the isolating device and the built-in printed circuit board of the socket connector of FIG. 1 from a third perspective.

FIG. 8 is a cross-sectional view of the isolating device of the socket connector of FIG. 1 assembled on the printed circuit board.

9 is another cross-sectional view of the isolating device of the receptacle connector assembled on the printed circuit board.

Figure 10 is a three-dimensional assembly diagram of the plug connector.

Fig. 11 is a side view of the plug connector.

Fig. 12 is a sectional view along A-A of Fig. 11 .

Fig. 13 is a sectional view along B-B of Fig. 11 .

14 is a perspective view of the plug connector and the socket connector of the second embodiment of the high-density electrical connector assembly of the present invention.

15 is a three-dimensional assembly view of the plug connector and the socket connector of the high-density electrical connector assembly.

FIG. 16 is a perspective view of the receptacle connector shown in FIG. 14 .

FIG. 17 is another perspective view of the receptacle connector shown in FIG. 14 .

FIG. 18 is an exploded perspective view of the socket connector shown in FIG. 14 .

FIG. 19 is an exploded perspective view of the receptacle connector shown in FIG. 14 from another perspective.

20 is a cross-sectional view of the receptacle connector with the printed circuit board and the cover removed.

FIG. 21 is an exploded perspective view of the plug connector shown in FIG. 14 .

Figure 22 is an assembled view of the plug connector.

Fig. 23 is a side view of the plug connector shown in Fig. 22 .

Fig. 24 is a sectional view along line C-C of Fig. 23 .

【Detailed ways】

1 to 4, the utility model high-density electrical connector assembly includes a socket connector 100 and a plug connector 200 (FIG. 10), wherein the socket connector 100 is assembled on the printed circuit board 2, which includes The insulating body 110 , several built-in printed circuit boards 120 and several isolation devices 130 . The printed circuit board 2 includes a number of contact pads 20 and a number of through holes 21 .

The insulating body 110 includes a main body 111 and a holder 112 . The main body 111 includes a docking port 113 at the front end, a slot 114 communicating with the docking port 113 , and an assembly port 115 at the rear end and communicating with the slot 114 . The main body 111 also includes a pair of locking grooves 116 disposed at the top end thereof and a pair of locking grooves 117 respectively communicating with the locking grooves 116 . The holding body 112 includes a cover 118 and a pair of holding arms 119 extending forward from the top of the cover 118 . In addition, the cover plate 118 further includes a pair of guiding grooves 1181 disposed on the inner wall thereof and a lock portion 1182 protruding from the inner wall thereof. The holding arm 119 has a hook portion 1191 at its end.

Referring to FIGS. 5 to 5 , as shown in FIG. 7 , the built-in printed circuit board 120 includes a first printed surface 121 , a second printed surface 122 opposite to the first printed surface 121 , an abutting end 123 and an assembly end 124 . Wherein the first printing surface 121 is provided with a number of signal gold fingers 125, a transmission circuit 126 connected to the signal gold fingers 125, and a number of grounding parts 127 arranged around the signal gold fingers 125 and the transmission circuit 126 at the docking end 123 and the assembly end 124. . The second printing surface 122 is provided with a plurality of grounding gold fingers 128 at its butt end 123 and assembly end 124 .

The isolation device 130 includes an insulating board 131 , a plurality of signal terminals 132 and a shielding board 133 . Two adjacent insulating boards 131 define a slot for accommodating the corresponding built-in printed circuit board 120 , and the insulating board 131 includes a holding board 134 and shoulders 135 disposed on two sides of the holding board 134 . The holding portion 134 includes a first sidewall 1340 and a second sidewall 1341 opposite to the first sidewall 1340 . Wherein the first side wall 1340 includes a plurality of first protrusions 1343 arranged at its lower end, a groove 1344 spaced apart from the first protrusions 1343, and a groove 1344 extending downward from the top and positioned between two adjacent first protrusions 1343 and the groove. First slit 1345 in the middle of 1344. The second sidewall 1341 includes a plurality of second protrusions 1347 disposed at a lower end thereof, a plurality of channels 1348 extending downward from the top 1341 and penetrating the bottom surface, and a plurality of second openings 1349 disposed between two adjacent channels 1348 . The first and second protrusions 1343 and 1347 are both provided with vertical holes 1346 . The shoulders 135 of the two insulation boards 131 have protruding ribs 1350 on their outer sides, and the other insulation boards 131 have a step 1351 in the middle of one side.

The signal terminal 132 is assembled in the channel 1348 of the insulating board 131, which includes a holding end 1321 matched with the insulating board 131, an interference end 1320 extending upward from the holding end 1321 to electrically connect the assembly end 124 of the built-in printed circuit board 120, and The holding end 1321 extends downward from the bottom surface of the insulating board 131 to electrically connect the tail portion 1322 of the printed circuit board 2 . The tail portion 1322 forms an angle with respect to the holding end 1321 and the interfering end 1320 .

The shielding plate 133 includes a plate-shaped body 1330 in contact with the first side wall 1340 of the insulating plate 131, a number of elastic pieces 1331 extending downward from the top of the plate-shaped body 1330 and spaced from the plate-shaped body 1330 by a certain distance, and formed by the plate-shaped body. The bottom edge of 1330 extends downwards with several plug ends 1332 . The plate-shaped body 1330 is provided with a plurality of vertical pieces 1333 extending downward, and the vertical pieces 1333 are received in the first opening 1345 of the insulating plate 131 to electrically connect the grounding portion 127 of the assembly terminal 124 of the built-in printed circuit board 120. The body 1330 is provided with several flanges 1334 below the tabs 1333 .

During the assembly process of the isolation device 130, the second protrusion 1347 of one insulation board 131 is accommodated in the groove 1344 of the other insulation board 131, and the insertion end 1332 of the shielding board 133 is inserted into the first, second protrusion 1343, In the vertical hole 1346 of 1348. In addition, the two insulating plates 131 with the protruding ribs 1350 on the shoulders 135 are disposed on the outermost periphery of the isolation device 130 .

8 and 9, the elastic piece 1331, the vertical piece 1333 and the interfering end 1320 of the signal terminal 132 are arranged in a staggered manner, and the distance between the bottom of the isolating device 130 and the interfering end 1335 of the elastic piece 1331 is greater than that between the bottom of the isolating device 130 and the vertical. The distance between the contact end 1336 of the piece 1333 is smaller than the distance between the bottom of the isolator 130 and the interference end 1320 of the signal terminal 132 , so the circuit passing through the elastic piece 1331 will not contact the signal terminal 132 and the vertical piece 1333 .

During the process of assembling the built-in printed circuit board 120 into the isolating device 130 , the assembly end 124 of the built-in printed circuit board 120 is inserted between the two isolating devices 130 and made to abut against the flange 1334 . Since the elastic pieces 1331, the vertical pieces 1333 and the interfering ends 1320 of the signal terminals 132 are arranged in a staggered manner, the insertion force of the built-in printed circuit board 120 is distributed along the built-in printed circuit board 120 and is significantly reduced, so the installation of the built-in circuit board 120 can be simplified. assembler.

Then the built-in printed circuit board 120 and the isolation device 130 are assembled in the main body 111 of the insulating body 110, the built-in printed circuit board 130 is accommodated in the channel 114 of the main body 111, and the butt end 123 of the built-in printed circuit board 120 is accommodated in the main body In the docking port 113 of the part 111 , the isolation device 130 is accommodated in the assembly port 115 of the main part 111 . Then the holding body 112 is assembled on the insulating body 110, wherein the convex rib 1350 of the isolation device 130 matches the guiding groove 1181 of the holding body 112, and the hook portion 1191 of the holding body 112 is accommodated in the buckling groove 117, at this time , the lock portion 1182 of the holding body 112 is matched with the step 1351 of the isolation device 130 .

Referring to FIGS. 10 and 11 , the plug connector 200 includes an insulating body 210 and a plurality of isolation devices 220 accommodated in the insulating body 210 .

The insulating body 210 includes two first sidewalls 211 and a second sidewall 212 connected to the first sidewalls 211 . Referring to FIGS. 12 and 13 , the isolating device 220 is similar to the isolating device 130 of the receptacle connector 100 , and is assembled between the first side wall 211 and the second side wall 212 . The isolation device 220 also includes an insulating plate 221 , a plurality of signal terminals 222 and a shielding plate 223 . The signal terminal 222 has an interference end 2220 and an abutting end 123 electrically connected to the built-in printed circuit board 120 . The shielding plate 223 includes a plurality of elastic pieces 2230 for electrically connecting the ground portion 127 of the built-in printed circuit board 120 and a plurality of vertical pieces 2231 for electrically connecting the grounding fingers 128 of the built-in printed circuit board 120 .

The elastic piece 2230, the vertical piece 2231, and the interference end 2220 of the signal terminal 222 are arranged in a staggered manner. Therefore, when the receptacle connector 100 and the plug connector 200 are assembled, the butt end of the built-in printed circuit board 120 and the plug connector 200 are inserted into the receptacle connector. The insertion force within 100 was significantly reduced.

Referring to FIG. 14 and FIG. 15 , the high-density electrical connector assembly according to the second embodiment of the present invention includes a receptacle connector 300 and a plug connector 400 mated with it.

Referring to FIGS. 16 to 19 , the receptacle connector 300 includes an insulating body 310 , a plurality of built-in printed circuit boards 320 and an isolation device 350 .

The insulating body 310 includes a main body 311 and a holding body 312 . The main body 311 includes a bottom wall 3110 , a pair of side walls 3111 extending upward from two sides of the bottom wall 3110 , and a rear wall 3112 extending from the back of the bottom wall 3110 and connected to the side walls 3111 . Both the side wall 3111 and the rear wall 3112 are provided with a locking groove 3114 .

The holder 312 includes a cover 3120 , a pair of sidewalls 3121 extending downward from two sides of the cover 3120 , and a rear wall 3122 extending downward from a rear end of the cover 3120 and connected to the sidewalls 3121 . The cover body 3120 also has a plurality of protruding ribs 3125 at its front end. Both the side wall 3121 and the rear wall 3122 are provided with a holding arm 3123 and a hook 3124 at the end of the holding arm 3123, wherein the holding arm 3123 is accommodated in the locking groove 3114 of the main body 311, and the hook 3124 is connected to the bottom surface of the main body 311 cooperate to hold the main body 311 and the holding body 312 together.

The built-in printed circuit board 320 includes a first printed surface 321 , a second printed surface 322 opposite to the first printed surface 321 , a docking end 323 and an assembly end 324 . The first printing surface 321 includes a number of signal gold fingers 3210 arranged at the docking end 323 and the assembly end 324, a number of transmission circuits 3211 communicated with the signal gold fingers 3210, and a number of grounds arranged around the signal gold fingers 3210 and the transmission circuit 3211. Section 3212. The second printing surface 322 is provided with a plurality of grounding golden fingers 3221 on the docking end 323 and the assembly end 324 .

The isolation device 350 includes an insulating plate 3113 extending upward along the bottom wall 3110 , a plurality of signal terminals 330 accommodated in the insulating plate 3113 , and a shielding plate 340 assembled on the insulating plate 3113 . The configuration of the insulating plate 3113 is similar to that of the insulating plate 131 of the first embodiment, so it will not be described in detail here.

The configurations of the signal terminals 330 and the shielding plate 340 and their assembly with the insulating plate 3113 are similar to those of the first embodiment. The signal terminal 330 includes a holding end 331 with the insulating plate, an interference end 332 extending from the holding end 331 to electrically connect the built-in printed circuit board 320, and an insulating plate 3113 extending from the holding end 331 to electrically connect the printed circuit board (not shown). Figure) tail 333. The shielding plate 340 includes a number of elastic pieces 341 electrically connected to the grounding portion 3212 of the built-in printed circuit board 320 , a number of tabs 342 electrically connected to the grounding gold fingers 3221 of the built-in printed circuit board 320 , and a number of pieces supporting the built-in printed circuit board 320 . flange 343 .

Please refer to FIG. 20, the elastic piece 341, the vertical piece 342 of the shielding plate 340 and the interfering end 332 of the signal terminal 330 are arranged in a staggered manner, therefore, the insertion force required to assemble the built-in printed circuit board 320 to the isolation device 350 is reduced , thus making the assembly process of the receptacle connector 300 simple.

Please refer to FIG. 21 and FIG. 22 , the plug connector 400 includes an insulating body 410 and a plurality of isolating devices 440 . The insulating body 410 includes a bottom wall 411 and sidewalls 412 extending upward from two sides of the bottom wall 411 . Each sidewall 412 defines a plurality of grooves 4120 for receiving the ribs 3125 of the receptacle connector 300 .

The isolation device 440 includes an insulating plate 413 extending upward from the bottom wall 411 of the insulating body 410 , a plurality of signal terminals 420 and a shielding plate 430 . The configuration of the insulating plate 413 is similar to that of the insulating plates 131 and 220 of the first embodiment and the insulating plate 3113 of this embodiment, and will not be described in detail here.

The configurations of the signal terminals 420 and the shielding plate 430 and their assembly methods with the shielding plate 430 are the same as those of the above-mentioned signal terminals and the shielding plate. The signal terminal 420 also includes a holding end 421 fixed to the insulating plate 413, an interference end 422 electrically connected to the golden finger 3221 of the built-in printed circuit board 320, and extending out of the insulating body 410 to electrically connect to the printed circuit board (not shown in the figure). shown) tail 423. The shielding plate 430 also includes a plurality of elastic pieces 431 electrically connected to the ground portion 3212 of the built-in printed circuit board 320 and a plurality of vertical pieces 432 electrically connected to the grounding fingers 3221 of the built-in printed circuit board 320 .

Please refer to Fig. 23 and Fig. 24, the elastic piece 431, the vertical piece 432 and the interfering end 422 of the signal terminal 420 are arranged in a staggered manner, therefore, when the receptacle connector 300 and the plug connector 400 are assembled, the built-in printed circuit The insertion force required to insert the mating end 323 of the board 320 into the spacer 440 of the plug connector 400 is reduced, thereby reducing the mating force between the socket connector 300 and the socket connector 400 .

Although the structures of the above-mentioned insulating plates, signal terminals and shielding plates are similar, they can be designed in different configurations according to different needs.

Claims (10)

1. An electrical connector comprising an insulating body, some built-in printed circuit boards and some isolating devices, characterized in that: the isolating devices are assembled on the insulating body and between adjacent built-in printed circuit boards, each isolating device It includes an insulating board, a number of signal terminals assembled on the insulating board to electrically contact the built-in printed circuit board, and a shielding board, wherein the shielding board includes elastic pieces electrically connected to the built-in printed circuit board, and the elastic pieces are interlaced with the signal terminals arrangement. 2. The electrical connector according to claim 1, wherein the signal terminal includes a holding end electrically connected to the built-in printed circuit board, and the distance between the holding end and the insulating plate is greater than the distance between the insulating plate and the elastic sheet . 3. The electrical connector according to claim 2, wherein each shielding plate includes a tab electrically connected to the built-in printed circuit board, and the distance between the tab and the insulating plate is smaller than the elastic piece of the shielding plate and insulation board spacing. 4. The electrical connector according to claim 3, wherein the insulating plate includes a first side wall and a second side wall opposite to the first side wall, and the vertical piece of the shielding plate is along the first side of the insulating plate. The side wall extends, and the signal terminal and the elastic piece of the shielding plate extend along the second side wall of the insulating plate. 5. The electrical connector according to claim 4, wherein the built-in printed circuit board comprises a first printed surface and a second printed surface opposite to the first printed surface, wherein the first printed surface is separated from the shielding plate The vertical piece is electrically connected, and the second printing surface is in electrical contact with the elastic piece and the signal terminal of the shielding plate. 6 . The electrical connector as claimed in claim 1 , wherein the shielding plate is provided with a tab electrically connected to the built-in printed circuit board, and any circuit connected to the elastic piece is not in contact with the tab and the signal terminal. 7. The electrical connector according to claim 1, wherein the insulating plate comprises a first side wall provided with a plurality of first protrusions and a second side wall provided with a plurality of second protrusions, and the shielding plate has A plurality of plug-in terminals are accommodated in the first protrusion of one insulation board and the second protrusion of the adjacent insulation board. 8. An electrical connector assembly, which includes a receptacle connector and a plug connector, wherein the receptacle connector includes a first insulating body, a number of first isolating devices arranged in the insulating body, and several built-in The printed circuit board, the plug connector includes a second insulating body and a number of second isolating devices, and the second isolating device is accommodated in the second insulating body to match with the butt end of the built-in printed circuit board, which is characterized in that: the first The isolation device includes a first insulating board, a number of first signal terminals assembled on the insulating board, and a first shielding board assembled on the insulating board, and the built-in printed circuit board includes a butt joint end and a joint end, and the joint end accommodates Between adjacent first isolating devices, it is electrically connected to the first signal terminal and the first shielding plate. The second isolating device includes a second insulating plate, which is assembled on the second insulator and is electrically connected to the built-in printed circuit board. A number of second signal terminals and a second shielding board assembled on the second insulating board for electrical connection with the built-in printed circuit board. 9. The electrical connector assembly according to claim 8, wherein the first insulating body comprises a main body and a holding body fixed on the main body, and the first isolating device is assembled with the first built-in printed circuit board Between the main body and the holder. 10. The electrical connector assembly according to claim 9, wherein the main body has a plurality of locking grooves, and the holding body is provided with a plurality of holding arms accommodated in the locking grooves, and each holding arm is provided with There is a clamping portion fixed to the main body.

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