TWM452482U - Electrical connector - Google Patents

Description

Electrical connector

This creation is about an electrical connector.

Serial Attached SCSI (SAS) is a communication protocol that primarily regulates the access of data to computer storage devices such as hard drives or tape drives. SAS is a point-to-point serial protocol that replaces the parallel SCSI bus technology introduced in the mid-1980s. The SAS device uses differential signals for communication. The differential signal can reduce the adverse effects of capacitive, inductive and noise encountered by parallel SCSI in high-speed data transmission, thus achieving stable and high-speed serial communication. ).

SAS inherits the standard SCSI command set and the Fibre Channel protocol frame formats and full-duplex communication. Each SAS device includes at least one transceiver mechanism, the transceiver mechanism including a transmitter and a receiver. Two pairs of wires can be used to connect the transmitters in the connection ports of the two devices to the corresponding receivers. In full-duplex communication mode, each transceiver mechanism can transmit and receive data through two pairs of wires simultaneously.

The connection between the two devices can be connected to the connector using a connecting wire, wherein the two pairs of wires are respectively connected to the two pairs of terminals on the connector. The first-generation SAS has a physical link rate of 3.0 Gbps (Gbit/s) and is currently used. The mainstream is the second-generation SAS, which has twice the physical connection rate of the first-generation SAS and reaches 6.0Gbps. In the near future, third-generation SAS will be introduced, and the physical connection rate of the third-generation SAS will further double the physical connection rate of the second-generation SAS to 12Gbps. Since the third-generation SAS connector and the second-generation SAS connector have the same arrangement of terminal pins, when the physical connection rate is increased to 12 Gbps, the existing connector generates electromagnetic interference (EMI emision) and its two pairs of terminals. There are problems such as cross talk.

In view of the foregoing, a new electrical connector has been proposed.

The electrical connector of an embodiment of the present invention comprises an insulative housing and a first set of terminals. The first set of terminals includes a first pair of differential signal terminals, a second pair of differential signal terminals, a first ground terminal, a second ground terminal, and a third ground terminal. The first pair of differential signal terminals can be fixed to the insulative body. The first pair of differential signal terminals may include a first signal terminal and a second signal terminal. The first signal terminal and the second signal terminal may respectively include a pin. The second pair of differential signal terminals can be fixed to the insulative body. The second pair of differential signal terminals may include a third signal terminal and a fourth signal terminal. The third signal terminal and the fourth signal terminal respectively comprise a pin, wherein the first signal terminal, the second signal terminal, the third signal terminal and the fourth signal terminal are sequentially arranged in a first direction, wherein the first pair The pins of the differential signal terminals are staggered in a second direction transverse to the first direction. The pins of the second pair of differential signal terminals are staggered transverse to the second direction. The first ground terminal can be adjacent to the first signal terminal. The first ground terminal can include at least A pin, wherein at least one of the first ground terminals is adjacent to a pin of the first signal terminal. The second ground terminal is disposed between the second signal terminal and the third signal terminal. The second ground terminal includes a first pin and a second pin. The first pin is adjacent to the pin of the third signal terminal, and the second pin is adjacent to the pin of the second signal terminal. The third ground terminal is adjacent to the fourth signal terminal. The third grounding terminal includes at least one pin, wherein at least one of the third grounding terminals is adjacent to the pin of the fourth signal terminal.

The pin of the first ground terminal is close to the pin of the first signal terminal, the pin of the second ground terminal is close to the pin of the second signal terminal, and the other pin of the second ground terminal is close to the third signal terminal. The pins of one pin and the third ground terminal are close to the pins of the fourth signal terminal, thereby reducing electromagnetic radiation.

The embodiments of the present creation are detailed below in conjunction with the drawings.

1 is a perspective view of an embodiment of the present invention, illustrating an electrical connector 2 mounted on a circuit board 1. FIG. 2 is another perspective view of an embodiment of the present invention, illustrating an electrical connector 2 mounted on a circuit board 1. FIG. 3 is a perspective view of an embodiment of the present invention, illustrating a circuit board 1 and an electrical connector 2. 4 is a perspective view of one embodiment of the present invention, illustrating a bottom surface of the circuit board 1 and the electrical connector 2. FIG. 5 is an exploded perspective view of the electrical connector 2 according to an embodiment of the present invention. FIG. 6 is another exploded perspective view of the electrical connector 2 of the present embodiment. Referring to Figures 1 to 6, the electrical connector 2 can be placed on a circuit board 1. The electrical connector 2 can include an insulative housing 21 and a first set of terminals 20. The first set of terminals 20 includes a first pair of differential signal terminals 22, a second pair of differential signal terminals 23, a first ground terminal 24, a second ground terminal 25, and a third ground terminal 26, wherein the first pair of differential signal terminals 22 are disposed at the first ground terminal 24 and the second ground Between the terminals 25, the second pair of differential signal terminals 23 are disposed between the second ground terminal 25 and the third ground terminal 26.

Although the embodiment of Figures 1 through 6 discloses two other sets of terminals (27 and 28), the present creation is not limited to embodiments having three sets of terminals (20, 27 and 28). The present invention can be applied to an electrical connector having at least a first set of terminals 20 including the first pair of differential signal terminals 22, the second pair of differential signal terminals 23, and the first ground terminal 24 The second ground terminal 25 and the third ground terminal 26 are provided.

The first pair of differential signal terminals 22 may be fixed to the insulative housing 21. The first pair of differential signal terminals 22 can be used to carry differential signals. The first pair of differential signal terminals 22 can include a first signal terminal 22a and a second signal terminal 22b. The first signal terminal 22a and the second signal terminal 22b may respectively include a pin 221 . In an embodiment, the first signal terminal 22a and the second signal terminal 22b may be crimp terminals, that is, the pins 221 of the first signal terminal 22a and the second signal terminal 22b include an eye of a needle. When the electrical connector 2 is placed on the circuit board 1, the pins 221 of the first signal terminal 22a and the second signal terminal 22b are inserted into the corresponding opening holes 11 (Fig. 3), and the pinholes thereof are fixed by interfering with the opening holes 11. In another embodiment, the pins 221 of the first signal terminal 22a and the second signal terminal 22b are soldered in the corresponding openings 11 on the circuit board 1. In another embodiment, the pins 221 of the first signal terminal 22a and the second signal terminal 22b are bent, and surface mounting technology (surface can be utilized) Mount technology) is soldered to the board 1.

The second pair of differential signal terminals 23 may be fixed to the insulative housing 21. The second pair of differential signal terminals 23 can be used to transmit differential signals. The second pair of differential signal terminals 23 may include a third signal terminal 23a and a fourth signal terminal 23b. The third signal terminal 23a and the fourth signal terminal 23b may respectively include a pin 231. In an embodiment, the third signal terminal 23a and the fourth signal terminal 23b may be crimp terminals, that is, the pins 231 of the third signal terminal 23a and the fourth signal terminal 23b include an eye of a needle. When the electrical connector 2 is placed on the circuit board 1, the pins 231 of the third signal terminal 23a and the fourth signal terminal 23b are inserted into the corresponding opening holes 11 (Fig. 3), and the pinholes thereof are fixed by interfering with the opening holes 11. In another embodiment, the pins 231 of the third signal terminal 23a and the fourth signal terminal 23b are soldered in the corresponding opening 11 of the circuit board 1. In another embodiment, the pins 231 of the third signal terminal 23a and the fourth signal terminal 23b are bent and soldered to the circuit board 1 by surface mount technology.

Referring to FIGS. 5 to 7, the first signal terminal 22a, the second signal terminal 22b, the third signal terminal 23a, and the fourth signal terminal 23b may be sequentially arranged in a first direction 3, wherein the direction is transverse to the first direction. In the second direction 4 of 3, the two pins 221 of the first pair of differential signal terminals 22 are staggered, and the two pins 231 of the second pair of differential signal terminals 23 are staggered, as shown in FIG.

Referring to FIGS. 5 to 7, the first ground terminal 24 is adjacent to the first signal terminal 22a. The first ground terminal 24 can include at least one pin (241a or 241b). In one embodiment, one of the first ground terminal 24 pins 241a is disposed adjacent to the pin 221 of the first signal terminal 22a.

The second ground terminal 25 is disposed between the second signal terminal 22b and the third signal terminal 23a. The second grounding terminal 25 includes a first pin 251a, a second pin 251b and a plate-shaped body 252. The first pin 251a and the second pin 251b can both extend from the plate-shaped body 252. In an embodiment, among the second signal terminal 22b and the third signal terminal 23a, the first pin 251a is closer to the pin 231 of the third signal terminal 23a, and the second pin 251b is closer to the second signal terminal. Pin 221 of 22b.

The plate-shaped body 252 of the second ground terminal 25 may partition the first pair of differential signal terminals 22 and the second pair of differential signal terminals 23 to reduce crosstalk between the first pair of differential signal terminals 22 and the second pair of differential signal terminals 23 Cross-talking. In an embodiment, as shown in FIG. 7, the dimension L of the plate-shaped body 252 of the second ground terminal 25 in the second direction 4 is smaller than the first pair of differential signal terminals 22 and the second pair of differential signal terminals 23 The dimension 1 in the direction 4 is large, so that crosstalk interference between the first pair of differential signal terminals 22 and the second pair of differential signal terminals 23 can be preferably avoided.

Referring to FIGS. 5 to 7, the third ground terminal 26 is adjacent to the fourth signal terminal 23b. The third ground terminal 26 can include at least one pin (261a or 261b). In one embodiment, one of the pins 261b of the third ground terminal 26 is disposed adjacent to the pin 231 of the fourth signal terminal 23b.

It is to be noted that the pin 241a of the first ground terminal 24 is closer to the pin 221 of the first signal terminal 22a, and the first pin 251a of the second ground terminal 25 is closer to the pin 231 of the third signal terminal 23a. The second pin 251b of the second ground terminal 25 is closer to the pin 221 of the second signal terminal 22b, and the pin 261b of the third ground terminal 26 is closer to the fourth signal terminal 23b. The pin 231, the pin 221 of the first signal terminal 22a can have a strong coupling effect with the pin 241a of the first ground terminal 24, and the pin 221 of the second signal terminal 22b can be connected to the second ground terminal 25 The pin 251b has a strong coupling effect, the pin 231 of the third signal terminal 23a can have a strong coupling effect with the first pin 251a of the second ground terminal 25, and the pin 231 of the fourth signal terminal 23b can be connected to the third The pin 261b of the ground terminal 26 has a strong coupling effect, thereby reducing electromagnetic interference generated by the first pair of differential signal terminals 22 and the second pair of differential signal terminals 23.

As shown in FIG. 7, in one embodiment, the two pins 221 of the first pair of differential signal terminals 22 are between the pins 241a of the first ground terminal 24 and the second pins 251b of the second ground terminal 25. The two pins 231 of the second pair of differential signal terminals 23 are interposed between the first pin 251a of the second ground terminal 25 and the pin 261a of the third ground terminal 26. In one embodiment, the pins 241a of the first ground terminal 24, the two pins 221 of the first pair of differential signal terminals 22, and the second pins 251b of the second ground terminal 25 are arranged in a row along the diagonal direction 5. The first pin 251a of the second ground terminal 25, the two pins 231 of the second pair of differential signal terminals 23, and the pins 261b of the third ground terminal 26 are arranged in a row in a pair of angular directions 5. With such a design, there is a better signal transmission effect.

Referring to FIG. 6, in an embodiment, the first ground terminal 24 may include a plate-shaped body 242 and has two pins (241a and 241b), wherein the two pins (241a and 241b) extend from the plate-shaped body 242. . By simultaneously grounding the two pins 241a and 241b, the equivalent inductance of the first ground terminal 24 can be reduced, thereby further reducing the electromagnetic interference generated by the first pair of differential signal terminals 22. In a real In the embodiment, the size of the plate-shaped body 242 in the second direction 4 is larger than the size of the first pair of differential signal terminals 22 and the second pair of differential signal terminals 23 in the second direction 4. In another embodiment, the first ground terminal 24 does not have a plate-like body.

In an embodiment, the third ground terminal 26 can include a plate-like body 262 and has two pins (261a and 261b), wherein the two legs (261a and 261b) extend from the plate-like body 262. By simultaneously grounding the two pins 261a and 261b, the equivalent inductance of the third ground terminal 26 can be reduced, thereby further reducing the electromagnetic interference generated by the second pair of differential signal terminals 23. In one embodiment, the size of the plate-like body 262 in the second direction 4 is larger than the size of the first pair of differential signal terminals 22 and the second pair of differential signal terminals 23 in the second direction 4. In another embodiment, the third ground terminal 26 does not have a plate-like body.

Referring to FIG. 6, the insulative housing 21 is formed with a first set of terminal slots 210. The first group of terminal slots 210 may include a plurality of signal terminal slots 211, wherein the plurality of signal terminal slots 211 correspond to the first signal terminal 22a, the second signal terminal 22b, the third signal terminal 23a, and the fourth signal terminal 23b. The first signal terminal 22a, the second signal terminal 22b, the third signal terminal 23a, and the fourth signal terminal 23b each include a fixing portion (222 or 232), wherein the first signal terminal 22a, the second signal terminal 22b, and the third When the signal terminal 23a or the fourth signal terminal 23b is incorporated in the corresponding signal terminal slot 211, the fixing portion (222 or 232) interferes with the groove wall of the signal terminal slot 211 and is fixed in the signal terminal slot 211 to make the first signal terminal. 22a, the second signal terminal 22b, the third signal terminal 23a or the fourth signal terminal 23b may be fixed to the insulative housing 21.

In an embodiment, the plate-shaped body 252 of the second ground terminal 25 is in the second The dimension L in the direction 4 is larger than the dimension of the fixed portion (222 or 232) in the second direction 4. In one embodiment, the plate-like body 242 of the first ground terminal 24 has a larger dimension in the second direction 4 than the fixed portion (222 or 232) in the second direction 4. In one embodiment, the plate-like body 262 of the third ground terminal 26 has a larger dimension in the second direction 4 than the fixed portion (222 or 232) in the second direction 4.

Referring to Figure 8, the plate-like bodies (242, 252, and 262) may be larger than the fixed portions (222 and 232). If the dimension of the plate-like body (242, 252 or 262) in the second direction 4 is referred to as the width, and the dimension transverse to the width is referred to as the height, the plate-shaped body 242 and the plate-shaped body 252 are excluded except for the larger width. The height I of the plate-like body 262 is not less than the height of the fixing portions (222 and 232), so that the generation of electromagnetic interference can be reduced.

Referring to FIG. 6 , in the embodiment, the first group of terminal slots 210 further includes a plurality of ground terminal slots 212 , wherein the plurality of ground terminal slots 212 correspond to the first ground terminal 24 , the second ground terminal 25 , and the third ground terminal. 26. When the first ground terminal 24, the second ground terminal 25 or the third ground terminal 26 is assembled into the corresponding ground terminal slot 212, the first ground terminal 24, the second ground terminal 25 or the third ground terminal 26 is a plate-shaped body ( 242, 252 or 262) may interfere with the groove wall of the ground terminal slot 212.

Referring to FIG. 6, the insulative housing 21 is formed with a slot 213 into which the slot 213 can be plugged. The first signal terminal 22a, the second signal terminal 22b, the third signal terminal 23a, and the fourth signal terminal 23b each include a contact portion (223 or 233), wherein the first signal terminal 22a, the second signal terminal 22b, and the third The signal terminal 23a and the fourth signal terminal 23b are combined into the corresponding signal end After the sub-grooves 211, the contacts (223 and 233) protrude into the slots 213 (Fig. 1) and are electrically connected to the mating connectors that are inserted. In addition, the first ground terminal 24, the second ground terminal 25, and the third ground terminal 26 respectively include contact portions (243, 253, and 263), and the first ground terminal 24, the second ground terminal 25, and the third ground terminal 26 are fixed. After the insulating body 21, the contact portions (243, 253, and 263) protrude into the slot 213.

Referring to Figure 6, in an embodiment, the electrical connector 2 can include a second set of terminals 27. The second set of terminals 27 can be fixed to the insulative housing 21 and used for signal transmission.

The insulative housing 21 includes a first sidewall 214 and a second sidewall 215. The first sidewall 214 and the second sidewall 215 extend in the first direction 3, respectively located on opposite sides of the slot 213, and define a slot. 213. The first set of terminal slots 210 may be formed on the first sidewall 214. Furthermore, the insulative housing 21 can be formed with a second set of terminal slots 216, the second set of terminal slots 216 corresponding to the second set of terminals 27, and the second set of terminals 27 correspondingly assembled into the second set of terminal slots 216, the second set of terminals The terminal fixing portion 272 of 27 interferes with the groove wall of the second group of terminal slots 216 correspondingly, and the second group of terminals 27 is fixed to the second group of terminal slots 216. In an embodiment, the second set of terminal slots 216 can be formed in the second sidewall 215.

Referring to FIGS. 2 and 6, each terminal of the second set of terminals 27 includes a contact portion 273. When the second group of terminals 27 are correspondingly assembled into the second group of terminal slots 216, the contact portion 273 protrudes into the slot 213 to electrically connect the mating connector.

Referring to FIG. 3 and FIG. 6, each terminal of the second group of terminals 27 includes a pin 271 for electrically connecting the circuit board 1. In an embodiment, the electricity The circuit board 1 includes a plurality of openings 12, and the plurality of openings 12 correspond to the terminal pins 271 of the second group of terminals 27. The pins 271 of the second group of terminals 27 include a pinhole, and the pinholes interfere with the opening 12. In one embodiment, the circuit board 1 includes a plurality of openings 12, the plurality of openings 12 corresponding to the pins 271 of the second set of terminals 27, and the pins 271 of the second set of terminals are fixed to the corresponding openings 12 by soldering. In one embodiment, the pins of the second set of terminals 27 are bent such that they can be soldered to the circuit board 1 using surface mount techniques.

In an embodiment, the pins 271 of the second set of terminals 27 can be arranged in a row. In one embodiment, the pins 271 of the second set of terminals 27 and the pins 271 of the second set of terminals 27 of the other portion are staggered in the second direction 4.

Referring to Figure 6, the electrical connector 2 can include a third set of terminals 28. The third set of terminals 2828 can be secured to the insulative body 21 and used for power transfer.

The second sidewall 215 of the insulative housing 21 can be formed with a third set of terminal slots 217. The third set of terminal slots 217 corresponds to the third set of terminals 28. Each of the terminals of the third set of terminals 28 may include a fixing portion 282. The fixing portions 282 of the third group of terminals 28 may correspondingly interfere with the third group of terminal slots 217 to fix the assembled third group of terminals 28.

Each terminal 28 of the third group of terminals 28 includes a contact portion 283. When the third group of terminals 28 are assembled into the third group of terminal slots 217, the contact portion 283 protrudes into the slot 213 to electrically connect the mating connector.

Referring to FIG. 3 and FIG. 6, each terminal of the third group of terminals 28 includes a pin 281 for electrically connecting the circuit board 1. In one embodiment, the circuit board 1 includes a plurality of openings 13 corresponding to the pins 281 of the third group of terminals 28, and each of the pins 281 of the third group of terminals 28 includes a pinhole, a pinhole and an opening. 13 interference coordination. In one embodiment, the circuit board 1 includes a plurality of openings 13 corresponding to the pins 281 of the third set of terminals 28, and the pins 281 of the third set of terminals 28 are soldered to the corresponding openings 13. In one embodiment, the pins of the third set of terminals 28 are bent such that they can be soldered to the circuit board 1 using surface mount technology.

In one embodiment, the pins 281 of the third set of terminals 28 can be arranged in a row. In one embodiment, the pins 281 of the portion of the third set of terminals 28 and the pins 281 of the third set of terminals 28 of the other portion are staggered in the second direction 4.

As shown in FIG. 6, in an embodiment, the first sidewall 214 includes a section 2141. The other portions of the first side wall 214 have a thin thickness except for the section 2141 in which the first set of terminal grooves 210 are formed. In an embodiment, the segment 2141 includes an outer protrusion 2142, wherein the first set of terminal slots 210 are formed in the outer protrusion 2142.

The second sidewall 215 of the insulative housing 21 can be formed with a recess 2151. The recess 2151 may be formed beside the slot 213. The recess 2151 can be formed with respect to the section 2141. In an embodiment, the recess 2151 can be used to prevent the docking connector from being inserted incorrectly. In an embodiment, the recess 2151 is spaced apart from the second set of terminal slots 216 and the third set of terminal slots 217.

Referring to Fig. 3, the insulative housing 21 has an elongated shape and includes both end portions. The slot 213 is formed on the upper surface of the insulative housing 21. A guiding block 218 may be formed on each end portion of the insulative housing 21, and the guiding block 218 is adjacent to both ends of the slot 213. The guiding block 218 is used to guide the docking connector when the docking connector is docked.

Referring to FIG. 4, the insulative housing 21 includes two positioning posts 219, two positioning The post 219 extends downward from the bottom of the insulative housing 21, and the corresponding positioning hole 14 is formed on the circuit board 1. When the electrical connector 2 is mounted on the circuit board 1, the positioning post 219 is inserted into the corresponding positioning hole 14.

In an embodiment of the present invention, the electrical connector includes a first ground terminal, a first pair of differential signal terminals, a second ground terminal, a second pair of differential signal terminals, and a third ground terminal, wherein the first The differential signal terminal is disposed between the first ground terminal and the second ground terminal, and the second pair of differential signal terminals is disposed between the second ground terminal and the third ground terminal. The first pair of differential signal terminals includes a first signal terminal and a second signal terminal, wherein the first signal terminal is adjacent to the first ground terminal, and the second signal terminal is adjacent to the second ground terminal. The second pair of differential signal terminals includes a third signal terminal and a fourth signal terminal, wherein the third signal terminal is adjacent to the second ground terminal, and the fourth signal terminal is adjacent to the third ground terminal. The first ground terminal has a pin, and the pin of the first ground terminal is adjacent to the pin of the first signal terminal. The second ground terminal has two pins, wherein one of the second ground terminals is adjacent to the pin of the second signal terminal, and the other pin of the second ground terminal is adjacent to the pin of the third signal terminal. The third ground terminal has a pin, and the pin of the third terminal is close to the pin of the fourth signal terminal. Since each of the pairs of differential signal terminals is adjacent to the pins of its adjacent ground terminals, the electromagnetic interference generated by each pair of differential signal terminals can be reduced. Furthermore, the second ground terminal includes a plate-shaped body that reduces crosstalk interference between the first pair of differential signal terminals and the second pair of differential signal terminals. In addition, the first ground terminal and the third ground terminal respectively have two pins, so that the equivalent inductance of the first ground terminal and the third ground terminal can be reduced, The electromagnetic interference generated by each pair of differential signal terminals is further reduced.

The technical content and technical features of the present invention have been disclosed as above, but those skilled in the art may still make various substitutions and modifications without departing from the spirit of the present invention based on the teachings and disclosures of the present invention. Therefore, the scope of the present invention is not limited to the embodiments disclosed, but includes various alternatives and modifications that do not depart from the present invention and are covered by the following claims.

1‧‧‧ boards

2‧‧‧Electrical connector

5‧‧‧diagonal direction

11‧‧‧Opening

12‧‧‧ Opening

13‧‧‧Opening

14‧‧‧Positioning holes

20‧‧‧First set of terminals

21‧‧‧Insulated body

22‧‧‧First pair of differential signal terminals

22a‧‧‧First signal terminal

22b‧‧‧second signal terminal

23‧‧‧Second pair of differential signal terminals

23a‧‧‧third signal terminal

23b‧‧‧fourth signal terminal

24‧‧‧First grounding terminal

25‧‧‧Second ground terminal

26‧‧‧ Third ground terminal

27‧‧‧Second group terminal

28‧‧‧Third set of terminals

210‧‧‧First set of terminal slots

211‧‧‧Signal terminal slot

212‧‧‧Ground terminal slot

213‧‧‧ slots

214‧‧‧First side wall

215‧‧‧ second side wall

216‧‧‧Second set of terminal slots

217‧‧‧The third set of terminal slots

218‧‧‧guide block

219‧‧‧ positioning column

221‧‧‧ feet

222‧‧‧ Fixed Department

223‧‧‧Contacts

231‧‧‧ pins

232‧‧‧Fixed Department

233‧‧‧Contacts

241a‧‧‧ pins

241b‧‧‧ pins

242‧‧‧ plate body

243‧‧‧Contacts

251a‧‧‧first pin

251b‧‧‧second pin

252‧‧‧ plate body

253‧‧‧Contacts

261a‧‧‧ pin

261b‧‧‧ pin

262‧‧‧ plate body

263‧‧‧Contacts

271‧‧‧ feet

272‧‧‧ fixed department

273‧‧‧Contacts

281‧‧‧ pins

282‧‧‧ Fixed Department

283‧‧‧Contacts

Section 2141‧‧‧

2142‧‧‧Outer convex

2151‧‧‧Depression

1 is a perspective view of an embodiment of the present invention, which illustrates an electrical connector mounted on a circuit board; FIG. 2 is another perspective view of an embodiment of the present invention, which is illustrated as being mounted on a circuit board. FIG. 3 is a perspective view of a circuit board and an electrical connector; FIG. 4 is a perspective view of one embodiment of the present invention, illustrating a circuit board and an electrical connector FIG. 5 is an exploded perspective view of an electrical connector according to an embodiment of the present invention; FIG. 6 is another exploded perspective view of the electrical connector of the present embodiment; FIG. 7 shows a ground terminal and a signal terminal according to an embodiment of the present invention. The arrangement of the pins; and Figure 8 is a side view of the embodiment of Figure 7.

20‧‧‧First set of terminals

21‧‧‧Insulated body

22‧‧‧First pair of differential signal terminals

22a‧‧‧First signal terminal

22b‧‧‧second signal terminal

23‧‧‧Second pair of differential signal terminals

23a‧‧‧third signal terminal

23b‧‧‧fourth signal terminal

24‧‧‧First grounding terminal

25‧‧‧Second ground terminal

26‧‧‧ Third ground terminal

27‧‧‧Second group terminal

28‧‧‧Third set of terminals

221‧‧‧ feet

231‧‧‧ pins

241a‧‧‧ pins

241b‧‧‧ pins

251b‧‧‧second pin

261b‧‧‧ pin

Claims (12)

An electrical connector includes: an insulative housing; and a first set of terminals, including: a first pair of differential signal terminals fixed to the insulative housing, the first pair of differential signal terminals including a first signal terminal and a first a second signal terminal, the first signal terminal and the second signal terminal respectively comprise a pin; a second pair of differential signal terminals fixed to the insulative housing, the second pair of differential signal terminals comprising a third signal terminal and a a fourth signal terminal, the third signal terminal and the fourth signal terminal respectively comprise a pin, wherein the first signal terminal, the second signal terminal, the third signal terminal and the fourth signal terminal are sequentially Arranging in a first direction, wherein the pins of the first pair of differential signal terminals and the pins of the second pair of differential signal terminals are respectively staggered in a second direction transverse to the first direction; a grounding terminal is disposed adjacent to the first signal terminal, the first grounding terminal includes at least one pin, wherein the at least one pin of the first grounding terminal is adjacent to the pin of the first signal terminal; a second grounding terminal is disposed between the second signal terminal and the third signal terminal, the second grounding terminal includes a first pin and a second pin, wherein the first pin is adjacent to the third signal a pin of the terminal, the second pin being adjacent to the pin of the second signal terminal; and A third grounding terminal is disposed adjacent to the fourth signal terminal, and the third grounding terminal includes at least one pin, wherein the at least one pin of the third grounding terminal is adjacent to the pin of the fourth signal terminal. The electrical connector of claim 1, wherein the second ground terminal comprises a plate-shaped body, the first pin and the second pin of the second ground terminal extend from the plate-shaped body, the plate shape The size of the body in the second direction is larger than the size of the first pair of differential signal terminals and the second pair of differential signal terminals in the second direction. The electrical connector of claim 2, wherein the first ground terminal comprises a plate-shaped body and two pins, and the third ground terminal comprises a plate-shaped body and two pins. The electrical connector of any one of claims 1 to 3, wherein the insulative housing comprises a first set of terminal slots, wherein the first set of terminals are correspondingly secured to the first set of terminal slots. The electrical connector of claim 4, wherein the insulative housing further comprises a first side wall and a second side wall, wherein the first side wall and the second side wall extend in the first direction and define a slot, wherein The first set of terminal slots are formed on the first sidewall. The electrical connector of claim 5, wherein the first side wall comprises a section, the section comprising an outer protrusion, wherein the first set of terminal slots are formed in the section. The electrical connector of claim 5, further comprising a second set of terminals, wherein the second side wall comprises a second set of terminal slots, wherein the second set of terminals are correspondingly fixed to the second set of terminal slots. The electrical connector of claim 7, further comprising a third set of terminals, wherein the second side wall comprises a third set of terminal slots, wherein the third set of terminals are correspondingly fixed to the third set of terminal slots. The electrical connector of claim 8, wherein the second sidewall comprises a recess, wherein the recess separates the second set of terminal slots from the third set of terminal slots. The electrical connector of claim 1, wherein the at least one pin of the first ground terminal, the pins of the first pair of differential signal terminals, and the second pin of the second ground terminal are along The diagonal direction is arranged in a row. The electrical connector of claim 1, wherein the first pin of the second ground terminal, the pins of the second pair of differential signal terminals, and the at least one pin of the third ground terminal are along The diagonal direction is arranged in a row. The electrical connector of claim 1, wherein the first pin of the second ground terminal and the second pin are spaced apart from each other in the second direction by more than the plurality of first pair of differential signal terminals The pins and the pins of the second pair of differential signal terminals are spaced apart in the second direction.