TW201709625A - Electrical connector and electrical connection device which can be used in high-frequency transmission without encountering inductive crosstalk and near end crosstalk - Google Patents

Abstract

An electrical connector includes an insulation body, a terminal set and a plurality of grounding members. The terminal set includes a plurality of terminals. Each terminal includes a fixing part, a contact part and an extension part. The terminal set includes a first terminal group. The first terminal group includes two signal terminal pairs each having two adjacent signal terminals, and three grounding terminals disposed between the two signal terminal pairs and at two external sides of the signal terminal pairs, respectively, such that each of the signal terminal pairs is disposed between two grounding terminals. The grounding members are separated from each other and buckled to the extension parts of the grounding terminals of the first terminal group. Each grounding member is integrally provided with a transverse connection part and three buckling parts respectively extended from the transverse connection part. The buckling parts are respectively buckled to the extension parts of the grounding terminals, and the transverse connection part is suspended to stride over the two signal terminal pairs.

Description

Electrical connector and electrical connection device

The invention relates to an electrical connector and an electrical connection device.

In general electronic information products, electrical connectors are commonly used to connect transmission lines to deliver signals. Due to the increasing amount of data transmission, electrical connectors need to increase the transmission speed to meet the needs of a large number of data transmission. However, high frequency transmission electrical connectors are prone to problems of inductive cross-talk and near end cross talk (NEXT).

An electrical connector is disclosed in the Japanese Patent No. I475754 (corresponding to US Pat. The impedance can be locked with the insulating body.

Taiwan Patent No. M332989 (corresponding to US Pat. No. 7,485,009, CN 200720040634.5) discloses an electrical connector including a conductive terminal, and the connecting portion of the conductive terminal is provided with two adjusting holes which are closed in a long groove shape, and the cross-sectional area of the conductive terminal can be appropriately reduced. To adjust the effective conductive area of the conductive terminals.

Taiwan Patent No. I484705 (corresponding to WO 2014/049426 A2, CN 200720040634.5) discloses an electrical connector including a first pair of differential signal terminals and a second pair of differential signal terminals, first and second signal terminals and a second pair of differential signal terminals of the first pair of differential signal terminals The third and fourth signal terminals are sequentially arranged in the first direction. The pins of the first and second pairs of differential signal terminals are respectively staggered in a second direction transverse to the first direction.

Chinese patent No. CN 201210225277.5 (corresponding to US 8764460) discloses an electrical connector comprising a first row of contact pins and a plurality of grounding bars, the first row of contact pins comprising a first grounding pin, a second grounding pin and a third grounding pin, each of the grounding bars being electrically connected A ground pin, a second ground pin and a third ground pin are disposed in parallel with each other. However, this patent specification does not specify how the grounding rod is connected to the grounding pin.

Since the high frequency transmission terminal is more likely to generate heat, if the electrical connector The heat dissipation effect is not good, which easily affects the transmission function of the electrical connector and even causes failure. Taiwan Patent No. M329915 (corresponding to US 7578696, CN 200720038820.5) discloses an electrical connector comprising a substantially L-shaped insulating body and a cover body matched and assembled to the insulating body, the cover body also being substantially L-shaped, the A plurality of first windows are opened on one panel, and a plurality of second windows are opened on the second panel to allow air to circulate.

Electrical connectors are used in a wide range of applications, and because of the wide variety of The requirements of electronic devices are not the same, and the structural design of the electrical connectors is also different to suit different electronic devices. So how to change the structure of the electrical connector and reduce the inductive coupling crosstalk interference and near-end crosstalk interference, there is still improvement Space.

Accordingly, it is an object of the present invention to provide an electrical connector suitable for high frequency transmission.

Accordingly, another object of the present invention is to provide an electrical connection device suitable for high frequency transmission.

Thus, in some embodiments, the electrical connector of the present invention comprises: an insulative housing, a first terminal set, and a plurality of metal grounding members. The insulative housing includes a first socket unit having a base portion, a plug portion extending from the base portion, and a plurality of terminal slots extending through the base portion and extending to the plug portion. The first terminal group is disposed on the first socket unit and includes a plurality of terminals respectively received in the terminal slots, each terminal having a fixing portion held at the base portion, and a fixing portion extending to the plugging portion a contact portion of the portion, and an extension portion extending from the fixing portion to the outside of the base portion, the first terminal group includes a first terminal group, the first terminal group having two pairs of two adjacent signal terminals respectively The pair of signal terminals and the three ground terminals respectively located between the pair of signal terminals and the two outer sides are disposed so that each pair of signal terminals is located between the two ground terminals. The metal grounding members are fastened to each other at an extending portion of the grounding terminal of the first terminal group, and each of the grounding members integrally includes a horizontal connecting portion and three fastening portions respectively extending from the horizontal connecting portion. The fastening portions are respectively fastened to the extension portions of the ground terminals, and the transverse portions are suspended across the pair of signal terminal pairs.

In some implementations, the plug portion extends forward from the base portion, and an extension portion of each terminal of the first terminal group is rearwardly disposed by the fixing portion thereof It is bent downward and exposed to the rear side of the base.

In some embodiments, each of the fastening portions has two clips The arms of the two clamping arms are elastic and relatively convex at the free end, that is, the spacing between the two clamping arms is small at the free end, and the extension of each of the grounding terminals is provided with a plurality of corresponding grounding members respectively. Each of the card-receiving units includes a first carding portion and a second carding portion, wherein the first carding portion is for the free end of the two clamping arms of the corresponding fastening portion, the second card The mounting portion is disposed between the fixed ends of the two clamp arms of the corresponding fastening portion.

In some implementations, the terminal of the first terminal group is solid The fixed portion and the extending portion are plate-shaped and the terminals are arranged side by side in the form of a plate surface opposite to the plate surface, and the signal terminals of each pair of signal terminal pairs respectively have a tail portion extending from the extending portion thereof and the tail portions of the two signal terminals are along The front and rear directions are staggered, and each of the ground terminals has two tail portions respectively extending from the extending portions thereof and spaced apart from each other in the front and rear positions.

In some implementations, the extension of each ground terminal is transverse The width of the board surface extending in the extending direction thereof is greater than the board surface width of the extension portion of each signal terminal transverse to the extending direction thereof, and the distance between the two tail portions of each ground terminal in the front-rear direction is greater than two pairs of each pair of signal terminals The distance of the tail in the front and rear direction.

In some implementations, the first card of each card unit The portion is a button hole opened in the extending portion, and the second card portion is a recess recessed by the side edge of the extending portion.

In some implementations, the first terminal group further includes a Second terminal group, the number of terminals of the second terminal group, and signal terminals and ground The terminal is disposed in the same manner as the first terminal group, and each terminal of the second terminal group further has a tail portion extending from the extending portion thereof, wherein the plurality of metal grounding members are fastened to each other at the second terminal group An extending portion of the grounding terminal, and an extending portion of each of the grounding terminals of the second terminal group is provided with a plurality of locking units respectively corresponding to the grounding members, each of the locking units including a first locking portion and a first a second clamping portion, wherein the first clamping portion is engaged with the free ends of the two clamping arms of the corresponding fastening portion, and the second locking portion is disposed between the fixed ends of the two clamping arms of the corresponding fastening portion .

In some implementations, each of the second terminal groups is grounded The first latching portion and the second latching portion of each of the latching units of the terminal are recesses respectively formed by recessing opposite side edges of the extending portion.

In some implementations, the terminal of the second terminal group is solid The fixed portion and the extending portion are plate-shaped and the terminals are arranged side by side in the form of a plate surface opposite to the plate surface, and the extending portion of each terminal of the second terminal group is provided with at least one elongated shape extending along the extending direction of the extending portion Through hole.

In some implementations, the first terminal group further includes a a third terminal group, each terminal of the third terminal group further has a tail portion extending from the extending portion thereof; the fixing portion and the extending portion of the terminal of the third terminal group are plate-shaped and the terminals are opposite to the board The surface forms are arranged side by side, and the extension of each terminal of the third terminal group is provided with at least one elongated through hole extending in the extending direction of the extending portion.

In some implementations, each terminal of the first terminal set The fixing portion is provided with an opening.

In some implementations, the insulative body further includes a second a socket unit, the second socket unit is located under the first socket unit and has the same configuration as the first socket unit; the electrical connector further includes a second terminal group disposed on the second socket unit, the second terminal group The terminal structure and the overall configuration are the same as the first terminal group, but the extension portion of the terminal of the second terminal group has no elongated through hole, and the extension portion and the tail portion of the terminal of the first terminal group are respectively located at the terminal of the second terminal group. The rear of the extension and the tail.

In some implementations, the first terminal set is provided The grounding members of the terminal group and the second terminal group are respectively three, and the grounding members of the first terminal group and the second terminal group of the second terminal group are respectively two.

In some implementations, the insulative body further includes a plurality of bits a first venting hole between the first socket unit and the second socket unit and extending in the front-rear direction; the electrical connector further includes a rear cover, the rear cover has a rear wall, and the rear wall has a plurality of a second venting hole, the second venting holes cooperate with the first venting holes to allow air to circulate back and forth.

Thus, in some embodiments, the electrical connection device of the present invention includes an electrical connector and a circuit board. The electrical connector includes an insulative housing and a first terminal set. The insulative housing includes a first socket unit having a base portion, a plug portion extending forwardly from the base portion, and a plurality of terminals extending through the base portion in a front-rear direction and extending to the plug portion groove. The first terminal group is disposed on the first socket unit and includes a plurality of terminals respectively received in the terminal slots, each terminal having a fixing portion held at the base portion, and a fixing portion extending to the plugging portion a contact portion of the portion, and an extension portion extending from the fixing portion backward and downward to the outside of the base portion. The first terminal group includes a first terminal group, and the first terminal group has two a signal terminal pair composed of two adjacent signal terminals and three ground terminals respectively located between the pair of signal terminal pairs and the two outer sides, so that each pair of signal terminal pairs is respectively located between the two ground terminals, the first The fixing portion and the extending portion of the terminal of the terminal group are in a plate shape, and the terminals are arranged side by side in the form of a plate surface opposite to the plate surface, and the signal terminals of each pair of signal terminal pairs respectively have a tail portion extending from the extending portion thereof and two signals The tail portions of the terminals are staggered in the front-rear direction, and each of the ground terminals also has two tail portions respectively extending from the extending portions thereof and spaced apart from each other in the front-rear position. The circuit board has a plurality of contacts respectively connected to the tail portions of the terminals, and a plurality of ground holes disposed between the two contacts of the two tail portions corresponding to the ground terminals connected in the middle.

In some embodiments, the ground holes are distributed along the front and rear directions.

In some embodiments, the ground vias are metallized vias and are electrically connected to a ground line of the circuit board.

In some implementations, the ground holes are three.

In some embodiments, the contacts are perforated, and the tails of the terminals are pin-shaped and inserted into corresponding contacts for soldering.

In some embodiments, the width of the plate portion extending in a direction transverse to the extending direction of each of the ground terminals is greater than the width of the plate surface in which the extension of each signal terminal is transverse to the extending direction thereof, and two of each ground terminal The distance of the tail portion in the front-rear direction is greater than the distance between the two tail portions of each pair of signal terminal pairs in the front-rear direction.

In some implementations, the first terminal group further includes a second terminal group and a third terminal group, and the number of terminals and the second terminal group The terminal terminal and the ground terminal are disposed in the same manner as the first terminal group, and each terminal of the second terminal group further has a tail portion extending from an extension portion thereof, and each terminal of the third terminal group further has a tail portion thereof The extension of the extension extends.

In some implementations, the second terminal group and the third end The fixing portion and the extending portion of the terminal of the subgroup are in a plate shape, and the terminals are arranged side by side in the form of a plate surface, and the extension portion of each of the second terminal group and the third terminal group is provided with at least one An elongated through hole extending along the extending direction of the extension.

In some implementations, each terminal of the first terminal set The fixing portion is provided with an opening.

In some implementations, the insulative body further includes a second a socket unit, the second socket unit is located under the first socket unit and has the same configuration as the first socket unit; the electrical connector further includes a second terminal group disposed on the second socket unit, the second terminal group The terminal structure and the overall configuration are the same as the first terminal group, but the extension portion of the terminal of the second terminal group has no elongated through hole, and the extension portion and the tail portion of the terminal of the first terminal group are respectively located at the terminal of the second terminal group. The rear of the extension and the tail.

In some implementations, the electrical connector further includes a plurality of gold The grounding member is provided, and the grounding members of the first terminal group and the second terminal group of the first terminal group are respectively three, and the grounding members of the first terminal group and the second terminal group of the second terminal group are respectively respectively In each case, each of the grounding members integrally includes a horizontal connecting portion and three fastening portions respectively extending from the horizontal connecting portion, and the fastening portions are respectively fastened to the extending portions of the grounding terminals of the corresponding terminal groups and the horizontal portions The connector is suspended across two pairs of signal terminal pairs of the corresponding terminal group.

The invention has at least the following effects: the grounding member can be easily fastened and coupled to the grounding terminal by the integral structure of the grounding member. By reducing the structure of the signal crosstalk, the signal crosstalk generated by the signal terminal pair itself and the coupling between the two signal terminal pairs can be effectively reduced to facilitate high-speed signal transmission and signal integrity. In addition, the first venting hole of the insulating body cooperates with the second venting hole of the back cover to allow air to flow back and forth, thereby increasing heat dissipation performance.

A‧‧‧First terminal group

A1‧‧‧First terminal group

A10‧‧‧Signal terminal pair

A11‧‧‧ signal terminal

A12‧‧‧ Grounding terminal

A2‧‧‧second terminal group

A20‧‧‧Signal terminal pair

A21‧‧‧ signal terminal

A22‧‧‧ Grounding terminal

A3‧‧‧ third terminal group

B‧‧‧Second terminal group

B1‧‧‧First terminal group

B10‧‧‧Signal terminal pair

B11‧‧‧ signal terminal

B12‧‧‧ Grounding terminal

B2‧‧‧Second terminal group

B20‧‧‧Signal terminal pair

B21‧‧‧ signal terminal

B22‧‧‧ Grounding terminal

B3‧‧‧ third terminal group

C‧‧‧ spacing

D‧‧‧ front and rear direction

L1‧‧‧ distance

L2‧‧‧ distance

W1‧‧‧ board width

W2‧‧‧ board width

100‧‧‧Electrical connector

1‧‧‧Insulating body

11‧‧‧First outlet unit

111‧‧‧ base

112‧‧‧Interface

112a‧‧‧ slots

112b‧‧‧ first wall

112c‧‧‧ second wall

113‧‧‧Terminal slot

12‧‧‧Second outlet unit

13‧‧‧First ventilation hole

14‧‧‧Assembled wall

141‧‧‧Care Department

2‧‧‧ terminals

21‧‧‧ Fixed Department

211‧‧‧ openings

22‧‧‧Contacts

23‧‧‧Extension

231‧‧‧Card unit

231a‧‧‧First Carding Department

231b‧‧‧Second Card Division

232‧‧‧Long hole

24‧‧‧ tail

2'‧‧‧ terminals

21’‧‧‧ Fixed Department

22’‧‧‧Contacts

23’‧‧‧Extension

24’‧‧‧End

3‧‧‧ Grounding parts

31‧‧‧crossing

32‧‧‧Deduction Department

321‧‧‧ clip arm

4‧‧‧ Positioning board

41‧‧‧ Positioning perforation

42‧‧‧Snap structure

5‧‧‧Back cover

51‧‧‧ side wall

52‧‧‧ top wall

53‧‧‧ Back wall

531‧‧‧second vent

6‧‧‧Circuit board

61‧‧‧Contacts

61G‧‧‧Contact

61S‧‧‧Contact

62‧‧‧ Grounding Hole

The other features and advantages of the present invention will be apparent from the detailed description of the embodiments of the invention. FIG. 1 is a perspective view illustrating one embodiment of the electrical connection device of the present invention; FIG. FIG. 3 is an exploded perspective view showing the assembled relationship of the insulating body, the back cover, the positioning plate and the terminal of an electrical connector of the embodiment; FIG. 4 is an exploded perspective view showing the same; The assembled relationship between the insulative housing of the embodiment and the first terminal group and the second terminal group; FIG. 5 is a perspective view illustrating the combined relationship between the first terminal group and the plurality of grounding members of the first terminal group of the embodiment; Is a perspective exploded view illustrating the terminal structure and arrangement relationship of the first terminal group of the embodiment; FIG. 7 is a front view showing the structure of a grounding member of the embodiment; FIG. 8 is a perspective view illustrating the embodiment The combination of the second terminal group of the first terminal group and the plurality of grounding members; FIG. 9 is an exploded perspective view showing the end of the second terminal group of the embodiment Another embodiment of the substructure and the grounding member; FIG. 10 is an exploded perspective view showing the terminal structure and arrangement relationship of the second terminal group of the embodiment, and the combination of the first and second terminal groups and the grounding member FIG. 11 is a plan view showing the distribution relationship of a plurality of contacts and a plurality of grounding holes of the circuit board of the embodiment; FIG. 12 is a partial enlarged view of FIG. 11 illustrating the grounding hole of the circuit board of the embodiment. FIG. 13 is a perspective view showing the assembly relationship of the terminal tail portion of the first terminal group of the embodiment and the contact point of the circuit board; FIG. 14 is a partial plan view of FIG. 13 illustrating the first terminal group of the embodiment; The positional relationship between the tail portion of the grounding terminal and the grounding hole; and FIG. 15 is a rear view showing the corresponding relationship between the first venting hole of the insulating body of the embodiment and the second venting hole of the back cover.

Referring to FIGS. 1 through 4, an embodiment of the electrical connection device of the present invention includes an electrical connector 100 and a circuit board 6. The electrical connector 100 includes an insulative housing 1, a first terminal set A, a second terminal set B, a plurality of metal grounding members 3, a positioning plate 4, and a rear cover 5.

The insulative housing 1 includes a first socket unit 11 , a second socket unit 12 , a plurality of first ventilation holes 13 , and two assembly walls 14 . The first socket unit 11 has a base portion 111, a plug portion 112 extending forwardly from the base portion 111, and a plurality of terminal slots 113 extending through the base portion 111 in a front-rear direction D and extending to the plug portion 112. The plug portion 112 has a The slot 112a defines a first wall 112b and a second wall 112c on opposite sides of the slot 112a. A part of the terminal groove 113 extends to the first wall 112b, and another part of the terminal groove 113 extends to the second wall 112c to communicate with the slot 112a. The second socket unit 12 is located below the first socket unit 11 and has the same configuration as the first socket unit 11. The first ventilation hole 13 is located between the first socket unit 11 and the second socket unit 12 and penetrates in the front-rear direction D, respectively. The two assembly walls 14 are spaced apart from each other and are respectively connected to the rear sides of the first socket unit 11 and the second socket unit 12.

The first terminal group A is disposed in the first socket unit 11 and includes a plurality of Terminal 2. The terminals 2 are respectively received in the terminal slots 113 of the first socket unit 11. Each of the terminals 2 has a fixing portion 21 fixed to the base portion 111, a contact portion 22 extending from the fixing portion 21 to the insertion portion 112, and an extension portion extending from the fixing portion 21 to the outside of the base portion 111. twenty three. In the present embodiment, the extending portion 23 of each of the terminals 2 is bent rearward from the fixing portion 21 and exposed to the rear side of the base portion 111. The first terminal group A includes a first terminal group A1, a second terminal group A2, and a third terminal group A3. The contact portion 22 of the second terminal group A2 and the contact portion 22 of the third terminal group A3 are disposed on the second wall 112c and exposed to the slot 112a, and the second terminal group A2 and the third terminal group A3 The contact portion 22 of the first terminal group A1 is disposed on the first wall 112b and is exposed to the slot 112a with respect to the pitch C. In this embodiment, the first terminal group A1 and the second terminal group A2 are used to transmit high frequency signals, and the third terminal group A3 is used to transmit low frequency signals.

Referring to FIG. 5 to FIG. 7, the first terminal group A1 has two pairs of points. The pair of signal terminals A10 and three of the adjacent signal terminals A11 are respectively located between the pair of signal terminals A10 and the ground terminals A12 of the two outer sides, so that each pair of signal terminals A10 is located at the two ground terminals A12. between. The fixing portion 21 and the extending portion 23 of the terminal 2 of the first terminal group A1 have a plate shape, and the terminals 2 are arranged side by side with respect to the plate surface, and each of the pair of signal terminals A11 has a signal terminal A11. The tail portion 24 extending from the extension portion 23 and the tail portions 24 of the two signal terminals A11 are staggered in the front-rear direction D. The signal integrity can be improved by staggering the tail portion 24 of the two signal terminals A11 in the front-rear direction D. Each of the ground terminals A12 also has two tail portions 24 which are respectively extended by their extensions 23 and are spaced apart from each other in the front-rear position. The board surface width W1 of the extension portion 23 of each of the ground terminals A12 transverse to the extending direction thereof is larger than the board surface width W2 of the extension portion 23 of each signal terminal A11 transverse to the extending direction thereof, and two of each of the ground terminals A12 The distance L1 of the tail portion 24 in the front-rear direction D is greater than the distance L2 of the two tail portions 24 of each pair of signal terminal pairs A10 in the front-rear direction D, thereby reducing signal crosstalk caused by the coupling between the signal terminal pair A10.

Three grounding members 3 are fastened to each other at the first terminal Each of the grounding members 3 of the group A1 has a connecting portion 31 and three fastening portions 32 extending from the horizontal portion The extension portion 23 of the ground terminal A12 and the transverse portion 31 vacate across the pair of signal terminal pairs A10. By providing the grounding member 3, a small inductive loops can be formed, so that adjacent signal terminal pairs A10 can be reduced in high frequency transmission. Inductively coupled crosstalk interference to meet near-end crosstalk interference when transmitting at 12Gb/s over 6GHz. In one embodiment, each of the fastening portions 32 has two clamping arms 321 which are elastic and relatively convex at the free end, that is, the spacing between the two clamping arms 321 is at the free end. It is small and can be clamped on the ground terminal A12. In addition, the extending portion 23 of each of the grounding terminals A12 is provided with a plurality of latching units 231 respectively corresponding to the grounding members 3, and each of the latching units 231 includes a first latching portion 231a and a second latching portion. 231b, the first locking portion 231a is engaged with the free ends of the two clamping arms 321 of the corresponding fastening portions 32, and the second locking portions 231b are provided with the fixed ends of the two clamping arms 321 of the corresponding fastening portions 32. By interposing, the grounding member 3 can be more stably positioned on the grounding terminal A12. In the embodiment, the first latching portion 231a of each of the latching units 231 of the grounding terminal A12 of the first terminal group A1 is a buttonhole formed in the extending portion 23, and the second latching portion 231b is a recess recessed by the side edge of the extending portion 23.

Referring to FIG. 8 and FIG. 9, the number of terminals 2 of the second terminal group A2 is as follows. The configuration of the signal terminal A21 and the ground terminal A22 is the same as that of the first terminal group A1, that is, the second terminal group A2 also has two pairs of signal terminals A20 and three respectively composed of two adjacent signal terminals A21. The ground terminal A22 is located between the pair of signal terminals A20 and the two outer sides, so that each pair of signal terminals A20 is located between the two ground terminals A22. And each terminal 2 of the second terminal group A2 also has a tail portion 24 extending from its extension portion 23. Three grounding members 3 are provided in the second terminal group A2, and the grounding member 3 provided in the second terminal group A2 and the grounding member 3 provided in the first terminal group A1 are different from each other, and are in the second terminal group A2. Grounding member 3 is constructed and arranged The grounding members 3 of the first terminal group A1 are substantially the same, but the two clamping arms 321 of the fastening portions 32 are long. The extending portion 23 of each of the ground terminals A22 of the second terminal group A2 is also provided with a plurality of latching units 231 respectively corresponding to the grounding members 3. In the present embodiment, each of the second terminal groups A2 is grounded. The first latching portion 231a and the second latching portion 231b of each of the latching units 231 of the terminal A22 are recesses respectively formed by the opposite side edges of the extending portion 23, and the first latching portion 231a is provided. The free ends of the two clamping arms 321 of the corresponding fastening portions 32 are engaged, and the second locking portions 231b are engaged between the fixed ends of the two clamping arms 321 of the corresponding fastening portions 32, so that the grounding member 3 can also be It is more stably positioned on the ground terminal A22.

Further, the fixing portion 21 of the terminal 2 of the second terminal group A2 And the extension portion 23 has a plate shape and the terminals 2 are arranged side by side in the form of a plate surface opposite to the plate surface, and the extension portion 23 of each terminal 2 is provided with at least one elongated through hole extending along the extending direction of the extension portion 23. 233. In this embodiment, each terminal 2 is provided with two elongated through holes 233, and each elongated through hole 233 is located between the two clamping units 231. By the elongated through holes 233, signal crosstalk between adjacent signal terminal pairs A20 at high frequency transmission can be reduced.

Referring again to FIG. 4, each terminal 2 of the third terminal group A3 is further There is a tail portion 24 extending from its extension portion 23, and the extension portion 23 of each terminal 2 is provided with at least one elongated through hole 232 extending in the extending direction of the extension portion 23. That is, the configuration of the terminal 2 of the third terminal group A3 is the same as that of the terminal 2 of the second terminal group A2, so that it can be easily manufactured. In addition, the fixing portion 21 of each terminal 2 of the first terminal group A is provided with an opening 211, which can optimize the impedance in the region of the fixing portion 21 and enhance the completion of the signal. Integrity.

Referring to FIG. 4 and FIG. 10, the second terminal group B is disposed in the second plug The base unit 12 also includes a plurality of terminals 2'. The terminal 2' of the second terminal group B has the same configuration and overall configuration as the first terminal group A, and the terminals 2' are respectively received in the terminal slots 113 of the second socket unit 12. Each of the terminals 2 ′ has a fixing portion 21 ′ fixed to the base portion 111 , a contact portion 22 ′ extending from the fixing portion 21 ′ to the insertion portion 112 , and a fixing portion 21 ′ extending outside the base portion 111 . The extension portion 23' and the tail portion 24' extending downward from the extension portion 23'. Similarly, the second terminal group B includes a first terminal group B1, a second terminal group B2, and a third terminal group B3. The first terminal group B1 has two pairs of signal terminals B10 composed of two adjacent signal terminals B11 and three ground terminals B12 respectively located between and between the two pairs of signal terminals B10, and the second terminal group The configuration of B2 is the same as that of the first terminal group B1, and has two pairs of signal terminals B20 composed of two adjacent signal terminals B21 and three ground terminals respectively located between and between the two pairs of signal terminals B20. B22. However, the second terminal group B2 of the second terminal group B and the extension portion 23' of the terminal 2' of the third terminal group B3 have no elongated through holes, and the extension portion 23 and the tail portion 24 of the terminal 2 of the first terminal group A are respectively Located at the rear of the extension 23' and the tail portion 24' of the terminal 2' of the second terminal group B. Further, the grounding members 3 of the first terminal group B1 and the second terminal group B2 provided in the second terminal group B are two.

Referring to FIG. 11 to FIG. 14, the circuit board 6 has a plurality of separate connections. The contacts 61 of the tails 24, 24' of the terminals 2, 2' and the plurality of grounding holes 62. The contacts 61 correspond to the first terminal group A and the second terminal group B. There are two sets of contacts 61 arranged in front and rear. For convenience of description, the contacts in the figure corresponding to the ground terminals A12 and B12 in the middle of the first terminal group A1, B1 are denoted as 61G, and the corresponding signal terminal pairs A10 The contact point of B10 is marked as 61S. The grounding holes 62 are respectively disposed between the two contacts 61G of each set of contacts 61. The two contacts 61G provided with the grounding holes 62 are correspondingly connected to the ground in the middle of the first terminal group A1, B1. The two tail portions 24, 24' of the terminals A12, B12. That is, the ground holes 62 are located between the tail portions 24, 24' of the ground terminals A12, B12 intermediate the first terminal groups A1, B1. In the present embodiment, the grounding holes 62 between each of the two contacts 61G are distributed along the front-rear direction D, and preferably three, and the grounding holes 62 are distributed in the left and right pairs respectively connected to the signal terminal pair A10. , B10's contact between 61S. The ground holes 62 are metallized perforations and are electrically connected to a ground line (not shown) of the circuit board 6. The contacts 61 are perforations, and the tail portions 24, 24' of the terminals 2, 2' are pin-shaped and inserted into the corresponding contacts 61 for soldering. An electric wall is formed by the grounding holes 62 to isolate adjacent signal terminal pairs A10 and B10, thereby reducing signal crosstalk to facilitate high-speed transmission of signals and signal integrity.

Referring to FIG. 2 to FIG. 4 and FIG. 15 , the positioning plate 4 has multiple Correspondingly, the positioning through-holes 41 for the tail portions 24, 24' of the terminals 2, 2' are inserted, and a plurality of latching structures 42 respectively located at the two sides. The two assembly walls 14 of the insulative housing 1 are respectively provided with engaging portions 141 for engaging the fastening structures 42 such that the positioning plate 4 is fixed between the two assembly walls 14. The rear cover 5 is fixed in combination with the two assembly walls 14 and the base portion 111 and has two side walls 51, a top wall 52 and a rear wall 53. The two side walls 51 respectively correspond to two assembly walls The top wall 52 is connected to the two side walls 51 and covers the terminals 2, 2'. The rear wall 53 connects the two side walls 51 and the top wall 52 and is located behind the terminals 2, 2' and has A plurality of second ventilation holes 531, the second ventilation holes 531 cooperate with the first ventilation holes 13 to allow air to flow back and forth, thereby increasing heat dissipation performance. After the terminals 2, 2' are assembled to the insulative housing 1, the positioning plate 4 is assembled and fixed with the terminals 2, 2' and the insulative housing 1. After the rear cover 5 and the insulative housing 1 are combined, the assembly of the electrical connector 100 is completed. The electrical connector 100 is mounted to the circuit board 6.

In summary, the grounding member 3 can be easily fastened and coupled to the ground terminals A12, A22, B12, and B22 by the integral structure of the grounding member 3. By reducing the structure of the signal crosstalk, the signal crosstalk generated by the signal terminal pair A10, A20, B10, B20 itself and the coupling between the two signal terminal pairs A10, A20, B10, B20 can be effectively reduced to facilitate high-speed transmission of the signal. And the integrity of the signal. In addition, the first venting holes 13 of the insulative housing 1 cooperate with the second venting holes 531 of the rear cover 5 to allow air to flow back and forth, thereby increasing heat dissipation performance.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

A1‧‧‧First terminal group

A10‧‧‧Signal terminal pair

A11‧‧‧ signal terminal

A12‧‧‧ Grounding terminal

D‧‧‧ front and rear direction

L1‧‧‧ distance

L2‧‧‧ distance

W1‧‧‧ board width

W2‧‧‧ board width

2‧‧‧ terminals

21‧‧‧ Fixed Department

211‧‧‧ openings

22‧‧‧Contacts

23‧‧‧Extension

231‧‧‧Card unit

231a‧‧‧First Carding Department

231b‧‧‧Second Card Division

24‧‧‧ tail

3‧‧‧ Grounding parts

31‧‧‧crossing

32‧‧‧Deduction Department

Claims (29)

An electrical connector comprising: an insulative housing comprising a first socket unit, the first socket unit having a base portion, a plug portion extending from the base portion, and a plurality of respectively extending through the base portion and extending to the plug portion a terminal slot; a first terminal set, disposed in the first socket unit and including a plurality of terminals respectively received in the terminal slots, each terminal having a fixing portion held at the base, and a fixing portion a first terminal group includes a first terminal group, and the first terminal group has two pairs of two phases respectively extending to the contact portion of the plug portion and an extension portion extending from the fixing portion to the outside of the base portion a signal terminal pair composed of adjacent signal terminals and three ground terminals respectively located between the pair of signal terminals and between the two outer sides, so that each pair of signal terminal pairs are respectively located between the two ground terminals; and a plurality of metal grounding members are mutually Each of the grounding members integrally includes a horizontal connecting portion and three fastening portions respectively extending from the horizontal connecting portion, and the fastening portions are respectively fastened. At the ground Sub-portion and the lateral extension portion suspended across the two pairs of signal terminal pair. The electrical connector of claim 1, wherein the plug portion extends forwardly from the base portion, and the extension portion of each terminal of the first terminal group is extended by the fixing portion thereof and extends downward to be exposed thereto. The back side of the base. The electrical connector of claim 1 or 2, wherein each of the fastening portions has two clamping arms, the two clamping arms are elastic and relatively convex at the free end, that is, the spacing between the two clamping arms is free Smaller at the end, each ground terminal The extending portion is provided with a plurality of latching units respectively corresponding to the grounding members, and each of the latching units includes a first latching portion and a second latching portion, wherein the first latching portion is provided for the corresponding latching portion The free ends of the two clamp arms are engaged, and the second latching portions are engaged between the fixed ends of the two clamp arms of the corresponding fastening portions. The electrical connector of claim 3, wherein the fixing portion and the extending portion of the terminal of the first terminal group are in a plate shape, and the terminals are arranged side by side in the form of a plate surface opposite to the plate surface, and the signal of each pair of signal terminal pairs The terminals also respectively have a tail portion extending from the extending portion thereof and the tail portions of the two signal terminals are staggered in a front-rear direction, and each of the ground terminals further has two tail portions respectively extending from the extending portions thereof and spaced apart from each other in the front-rear position. The electrical connector of claim 4, wherein the extension of each of the ground terminals is greater than a width of the board surface extending in a direction in which the extension of each of the signal terminals is greater than a plane width of the extension of each of the signal terminals, and each The distance between the two tail portions of a ground terminal in the front-rear direction is greater than the distance between the two tail portions of each pair of signal terminal pairs in the front-rear direction. The electrical connector of claim 5, wherein the first latching portion of each latching unit is a buttonhole formed in the extending portion, and the second latching portion is recessed by a side edge of the extending portion Set the notch. The electrical connector of claim 5, wherein the first terminal group further comprises a second terminal group, the number of terminals of the second terminal group and the configuration of the signal terminal and the ground terminal are the same as the first terminal group, Each terminal of the second terminal group further has a tail portion extending from an extension portion thereof, wherein the plurality of metal grounding members are fastened to each other at an extending portion of the ground terminal of the second terminal group, and the second terminal group Extension of each ground terminal A plurality of latching units respectively corresponding to the grounding members are disposed, each of the latching units includes a first latching portion and a second latching portion, the first latching portion for the two clips of the corresponding latching portion The free end of the arm is latched, and the second latching portion is engaged between the fixed ends of the two clip arms of the corresponding fastening portion. The electrical connector of claim 7, wherein the first latching portion and the second latching portion of each of the latching units of each of the ground terminals of the second terminal group are respectively opposite sides of the extending portion The recesses are formed by opposing recesses. The electrical connector of claim 8, wherein the fixing portion and the extending portion of the terminal of the second terminal group are in a plate shape, and the terminals are arranged side by side in the form of a plate surface opposite to the plate surface, and each of the second terminal groups The extension of a terminal is provided with at least one elongated through hole extending in the extending direction of the extension. The electrical connector of claim 9, wherein the first terminal group further comprises a third terminal group, each terminal of the third terminal group further having a tail portion extending from an extension portion thereof; the third terminal group The fixing portion and the extending portion of the terminal are in a plate shape, and the terminals are arranged side by side in the form of a plate surface opposite to the plate surface, and the extending portion of each terminal of the third terminal group is provided with at least one extending along the extending direction of the extending portion Long through hole. The electrical connector of claim 10, wherein the fixing portion of each terminal of the first terminal group is provided with an opening. The electrical connector of claim 11, wherein the insulative housing further comprises a second socket unit, the second socket unit being located under the first socket unit and configured the same as the first socket unit; the electrical connector further comprising a second terminal group disposed in the second socket unit, the terminal structure and the overall configuration of the second terminal group being the same as the first terminal group, but the second terminal group The extending portion of the terminal has no elongated through hole, and the extending portion and the tail portion of the terminal of the first terminal group are respectively located behind the extending portion and the tail portion of the terminal of the second terminal group. The electrical connector of claim 12, wherein the first terminal group and the second terminal group of the first terminal group have three grounding members, respectively, and the first terminal group of the second terminal group and The grounding members of the second terminal group are respectively two. The electrical connector of claim 13, wherein the insulative housing further comprises a plurality of first venting holes between the first socket unit and the second socket unit and respectively penetrating in the front-rear direction; the electrical connector A rear cover is further included, the rear cover having a rear wall having a plurality of second venting holes, the second venting holes cooperating with the first venting holes to allow air to circulate back and forth. An electrical connection device comprising: an electrical connector, comprising an insulative housing, comprising a first socket unit, the first socket unit having a base portion, a plug portion extending forward from the base portion, and a plurality of respectively a first terminal group is disposed in the first socket unit and includes a plurality of terminals respectively received in the terminal slots, each terminal having a terminal slot extending through the base portion and extending to the terminal portion; Holding the fixing portion of the base portion, a contact portion extending from the fixing portion to the insertion portion, and an extending portion extending from the fixing portion backward and downward to the outside of the base portion, the first terminal group includes Have a number a terminal group having two pairs of signal terminals respectively composed of two adjacent signal terminals and three ground terminals respectively located between the pair of signal terminals and between the two outer sides, so that each pair of signal terminals Between the two grounding terminals, the fixing portion and the extending portion of the terminal of the first terminal group are in a plate shape, and the terminals are arranged side by side in the form of a plate surface opposite to the plate surface, and the signal terminals of each pair of signal terminal pairs respectively have a tail portion extending from the extending portion thereof and the tail portions of the two signal terminals are staggered in the front-rear direction, each of the ground terminals further having two tail portions respectively extending from the extending portions thereof and spaced apart from each other in the front-rear position; and a circuit board having a plurality of contacts respectively connecting the tail portions of the terminals, and a plurality of ground holes disposed between the two contacts of the two tail portions corresponding to the ground terminals connected in the middle. The electrical connection device of claim 15, wherein the grounding holes are distributed along the front-rear direction. The electrical connection device of claim 16, wherein the ground vias are metallized vias and are electrically connected to a ground line of the circuit board. The electrical connection device of claim 17, wherein the grounding holes are three. The electrical connection device of claim 17, wherein the contacts are perforated, and the tails of the terminals are pin-shaped and inserted into corresponding contacts for soldering. The electrical connection device of claim 15, wherein the extension of each of the ground terminals is greater than a width of the plate surface extending in a direction in which the extension of each of the signal terminals is greater than a width of the plate extending in a direction in which the extension of each signal terminal is continuous, and each a ground terminal The distance between the two tail portions in the front-rear direction is greater than the distance between the two tail portions of each pair of signal terminal pairs in the front-rear direction. The electrical connection device of claim 20, wherein the first terminal group further comprises a second terminal group and a third terminal group, the number of terminals of the second terminal group, and the arrangement of the signal terminal and the ground terminal A terminal group is the same, and each terminal of the second terminal group further has a tail portion extending from an extension portion thereof, and each terminal of the third terminal group further has a tail portion extending from an extension portion thereof. The electrical connection device of claim 21, wherein the fixing portion and the extending portion of the terminal of the second terminal group and the third terminal group are in a plate shape, and the terminals are arranged side by side in the form of a plate surface opposite to the plate surface, The extension of each of the second terminal group and the third terminal group is provided with at least one elongated through hole extending in the extending direction of the extending portion. The electrical connection device of claim 22, wherein the fixing portion of each terminal of the first terminal group is provided with an opening. The electrical connection device of claim 23, wherein the insulative housing further comprises a second socket unit, the second socket unit being located below the first socket unit and configured the same as the first socket unit; the electrical connector further comprising a second terminal group disposed in the second socket unit, the terminal structure and the overall configuration of the second terminal group are the same as the first terminal group, but the extension portion of the terminal of the second terminal group has no elongated through hole, the first The extension portion and the tail portion of the terminal of the one terminal group are respectively located behind the extension portion and the tail portion of the terminal of the second terminal group. The electrical connection device of claim 24, wherein the electrical connector further comprises a plurality of metal grounding members, three grounding members disposed in the first terminal group and the second terminal group of the first terminal group, respectively, and grounding of the first terminal group and the second terminal group of the second terminal group Each of the grounding members includes a horizontal connecting portion and three fastening portions respectively extending from the horizontal connecting portion, and the fastening portions are respectively fastened to the extension portions of the grounding terminals of the corresponding terminal group and The traverse portion hangs across two pairs of signal terminal pairs of the corresponding terminal group. The electrical connection device of claim 25, wherein each of the fastening portions has two clamping arms, the two clamping arms are elastic and relatively convex at the free end, that is, the spacing between the two clamping arms is at the free end The positioning portion of each of the grounding terminals is provided with a plurality of latching units respectively corresponding to the grounding members, and each of the latching units includes a first latching portion and a second latching portion, the first latching portion The free ends of the two clamp arms of the corresponding fastening portions are engaged, and the second clamping portions are engaged between the fixed ends of the two clamp arms of the corresponding fastening portions. The electrical connection device of claim 26, wherein the first latching portion of each of the latching units of each of the first terminal groups of the first and second terminal groups is a first opening portion of the latching unit a second hole portion, wherein the second card portion is a recess recessed by a side edge of the extending portion, and the first card of each of the latching units of each ground terminal of the second terminal group of the first and second terminal groups The positioning portion and the second locking portion are recesses respectively formed by recessing opposite side edges of the extending portion. The electrical connection device of claim 20, wherein the electrical connector further comprises a plurality of metal grounding members fastened to each other at an extension of the ground terminal of the first terminal group, each of the grounding members integrally including Cross section and three And a fastening portion extending from the horizontal portion, wherein the fastening portions are respectively fastened to the extension portions of the ground terminals, and the transverse portions are suspended across the pair of signal terminal pairs. The electrical connection device of claim 28, wherein each of the fastening portions has two clamping arms, the two clamping arms are elastic and relatively convex at the free end, that is, the spacing between the two clamping arms is at the free end The positioning portion of each of the grounding terminals is provided with a plurality of latching units respectively corresponding to the grounding members, and each of the latching units includes a first latching portion and a second latching portion, the first latching portion The free ends of the two clamp arms of the corresponding fastening portions are engaged, and the second clamping portions are engaged between the fixed ends of the two clamp arms of the corresponding fastening portions.