TWI669866B - Electrical connector and electrical connection device - Google Patents

Abstract

An electrical connector includes an insulative housing, a terminal set and a plurality of grounding members. The terminal group includes a plurality of terminals. Each terminal has a fixing portion, a contact portion and an extension portion. The terminal group includes a first terminal group, the first terminal group has 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 the two outer sides, so that each The pairs of signal terminals are respectively located between the two ground terminals. The 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 by the horizontal connecting portions, and the fastening portions are respectively fastened At the extension of the ground terminal and the traverse is suspended across the two pairs of signal terminals.

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 unit 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 in the terminal slot, and a fixing portion extending to the insertion portion a contact portion of the connecting portion, and an extension portion extending from the fixing portion to the outside of the base portion and exposed to the insulating body, the first terminal group includes a first terminal group, and the first terminal group has two pairs respectively A pair of signal terminals consisting 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 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 is extended from the base The extension portion of each terminal of the first terminal group is bent and extended downward from the fixing portion thereof to be exposed on the rear side of the base portion.

In some embodiments, 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 smaller at the free end, each The extending portion of the grounding terminal 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, and the first latching portion is provided with a corresponding latching portion The free ends of the two clamping arms of the connecting portion are engaged, and the second locking portions are engaged between the fixed ends of the two clamping arms of the corresponding fastening portions.

In some embodiments, 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 board surface opposite to the board surface, and the signal terminals of each pair of signal terminal pairs respectively have one The tail portion extending from the extension portion 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.

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 embodiments, the first latching portion of each of the latching units is a latching hole formed in the extending portion, and the second latching portion is a recess recessed by the side edge of the extending portion.

In some implementations, the first terminal group further includes a a second terminal group, the number of terminals of the second terminal group and the arrangement of the signal terminal and the ground terminal are the same as the first terminal group, and each terminal of the second terminal group further has a tail portion extending from an extension portion thereof, wherein a plurality of metal grounding members are fastened to each other at an extending portion of the grounding terminal of the second terminal group, and an extension portion of each of the grounding terminals of the second terminal group is provided with a plurality of cards respectively corresponding to the grounding members Each of the latching units includes a first latching portion and a second latching portion, wherein the first latching portion is configured to be engaged by the free ends of the two clip arms of the corresponding fastening portion, the second latching portion The portion is clamped between the fixed ends of the two clamp arms of the corresponding fastening portion.

In some implementations, 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 formed by recessing opposite side edges of the extending portion Notch.

In some embodiments, 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 board surface opposite to the board surface, and the extension portion of each terminal of the second terminal group At least one elongated through hole extending in the extending direction of the extending portion is provided.

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

In some embodiments, the fixing portion of each terminal of the first terminal group is provided with an opening.

In some embodiments, the insulative housing further includes 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 first socket unit a second terminal group of the two 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, and the terminal of the first terminal group The extension portion and the tail portion are respectively located behind the extension portion and the tail portion of the terminal of the second terminal group.

In some implementations, the grounding members of the first terminal group and the second terminal group of the first terminal group are respectively three, and are disposed in the first terminal group and the second terminal group of the second terminal group. There are two grounding parts.

In some implementations, the insulative housing further includes a plurality of first venting holes between the first socket unit and the second socket unit and extending through the front and rear directions respectively; the electrical connector further includes a back cover The rear cover has a rear wall having a plurality of second ventilation holes, and the second ventilation holes cooperate with the first ventilation holes to allow air to flow 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 unit 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 in the terminal slot, and a fixing portion extending to the insertion portion a contact portion of the joint portion, and a curved portion extending backward and downward from the fixing portion to the outside of the base portion and exposed And an extension of the insulative body. The first terminal group includes a first terminal group, the first terminal group has two pairs of signal terminals respectively composed of two adjacent signal terminals, and three grounds respectively located between the pair of signal terminals and between the two outer sides. The terminal is disposed between each pair of signal terminal pairs, 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 board surface opposite to the board surface, each pair of signals The signal terminals of the pair of terminals further 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, and each of the ground terminals further has two extending from the extending portion thereof and spaced apart from each other in the front-rear position. Tail. 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 of the second terminal group and the configuration of the signal terminal and the ground terminal are the same 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 extending from an extension portion thereof.

In some embodiments, 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 board surface opposite to the board surface, the second terminal group and The extension of each terminal of the third terminal group is provided with at least one elongated through hole extending along the extending direction of the extending portion.

In some embodiments, the fixing portion of each terminal of the first terminal group is provided with an opening.

In some embodiments, the insulative housing further includes 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 first socket unit a second terminal group of the two 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, and the terminal of the first terminal group The extension portion and the tail portion are respectively located behind the extension portion and the tail portion of the terminal of the second terminal group.

In some embodiments, the electrical connector further includes a plurality of metal grounding members, and the grounding members of the first terminal group and the second terminal group of the first terminal group are respectively disposed at the second terminal. Each of the first terminal group and the second terminal group has two grounding members, and 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 They are respectively fastened to the extensions of the ground terminals of the corresponding terminal group and the transverse portions are suspended across the pair 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 Second end of the first terminal set FIG. 9 is an exploded perspective view showing the terminal structure of the second terminal group and another embodiment of the grounding member of the embodiment; 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 relationship between the first and second terminal groups and the grounding member; FIG. 11 is a plan view showing a plurality of contacts of the circuit board of the embodiment and FIG. 12 is a partially enlarged view of the circuit board of the embodiment; FIG. 13 is a perspective view showing the terminal tail and the circuit of the first terminal group of the embodiment. FIG. 14 is a partial plan view of FIG. 13 illustrating the positional relationship between the tail portion of the ground terminal of the first terminal group and the ground hole of the embodiment; and FIG. 15 is a rear view illustrating 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 and a front portion extending from the base portion 111 The insertion portion 112 and the plurality of terminal grooves 113 extending through the base portion 111 in a front-rear direction D and extending to the insertion portion 112. The plug portion 112 has a slot 112a and a first wall 112b and a second wall 112c defining 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 terminals 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 held by the terminal groove 113 of 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 from the fixing portion 21 to the base portion 111. Externally and exposed to the extension 23 of the insulative housing 1. 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 In the 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 signal terminals A10 and three ground terminals respectively formed by two adjacent signal terminals A11 and between the two pairs of signal terminals A10 and two outside. A12, each pair of signal terminal pairs A10 is located between the two ground terminals A12. 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.

The three grounding members 3 are fastened to each other at an extending portion 23 of the grounding terminal A12 of the first terminal group A1. Each of the grounding members 3 integrally includes a horizontal connecting portion 31 and three extending from the horizontal connecting portion 31, respectively. The fastening portions 32 are respectively fastened to the extending portions 23 of the ground terminals A12 and the transverse portions 31 are suspended across the pair of signal terminal pairs A10. By setting The grounding member 3 can form smaller inductive loops, which can reduce the inductive coupling crosstalk between adjacent signal terminals and A10 during high frequency transmission to meet the frequency of 12 Gb/s over 6 GHz. Requirements for near-end crosstalk interference during rate transmission. 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 and the configuration of the signal terminal A21 and the ground terminal A22 are the same as those of the first terminal group A1, that is, the second terminal group A2 also has two pairs respectively. A pair of signal terminals A20 and three adjacent signal terminals A21 are located between the pair of signal terminals A20 and the ground terminals A22 of 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. In the second terminal group A2, three grounding members 3 are provided, which are The grounding member 3 of the two terminal group A2 and the grounding member 3 provided in the first terminal group A1 are different from each other, and the grounding member 3 of the second terminal group A2 has a structure similar to that of the grounding member 3 provided in the first terminal group A1. The same, but the two clamp arms 321 of the fastening portion 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.

In addition, the fixing portion 21 and the extending portion 23 of the terminal 2 of the second terminal group A2 are plate-shaped and the terminals 2 are arranged side by side in the form of a plate surface with respect to the plate surface, and the extending portion 23 of each terminal 2 is provided with at least An elongated through hole 233 extending in the extending direction of the extending portion 23. 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 to FIG. 4, each terminal 2 of the third terminal group A3 further has a tail portion 24 extending from the extending portion 23 thereof, and the extending portion 23 of each terminal 2 is provided with at least one extending direction along the extending portion 23. Extended elongated through hole 232. 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. this 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 improve the integrity of the signal.

Referring to Figures 4 and 10, a second terminal group B is disposed in the second socket unit 12 and 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' held by the terminal groove 113 of 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 from the fixing portion 21' to The base portion 111 is external and exposed to the extending portion 23' of the insulative housing 1, and a tail portion 24' extending downward from the extending 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 Figures 11 through 14, the circuit board 6 has a plurality of contacts 61 that connect the tail portions 24, 24' of the terminals 2, 2', respectively, and a plurality of grounding holes 62. The contacts 61 correspond to the first terminal group A and the second terminal group B and have two sets of contacts 61 arranged in front and rear. For convenience of description, the corresponding first terminal groups A1 and B1 in the figure are located in the middle. The contacts of the ground terminals A12 and B12 are denoted as 61G, and the contacts of the corresponding signal terminals A10 and B10 are denoted 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 a plurality of positioning through holes 41 respectively corresponding to the tail portions 24 , 24 ′ of the terminals 2 , 2 ′, and a plurality of buckle structures respectively located on the two sides. 42. The two assembly walls 14 of the insulative housing 1 are respectively provided with engaging portions that engage the snap structures 42 141, so 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 the two assembly walls 14 . 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 The terminals 2, 2' are rearward and have 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.

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 in the terminal slot, and a fixing a first terminal group includes a first terminal group, the first terminal group having a contact portion extending to the insertion portion, and an extension portion extending from the fixing portion to the base portion and exposed to the insulating body Two pairs of signal terminals consisting 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 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. Equal button Fastening portions extending portion of these ground terminals and the lateral 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, ie The spacing between the two clamping arms is small at the free end, and the extending portion of each of the grounding terminals 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 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 provided between the fixed ends of the two clamping arms of the corresponding fastening portion Card set. 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 a ground end of the second terminal group An extension portion of each of the second terminal groups, and an extension portion of each of the ground terminals of the second terminal group is provided with a plurality of latching units respectively corresponding to the grounding members, each of the latching units including a first latching portion and a second portion The latching portion is configured to be engaged with the free ends of the two clip arms of the corresponding fastening portions, and the second latching portions are engaged between the fixed ends of the two clip arms of the corresponding fastening portions. 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 on the second socket unit, the terminal of the second terminal group The structure and the overall configuration are the same as the first terminal group, but the extension of the terminal of the second terminal group has no elongated through hole, and the extension and the tail of the terminal of the first terminal group are respectively located at the extension of the terminal of the second terminal group. The rear of the section and the tail. 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; a fixing portion fixed to the terminal slot, a contact portion extending from the fixing portion to the insertion portion, and a bending portion backward and downward by the fixing portion Extending to the outside of the base and exposing to the extending portion of the insulative housing, the first terminal group includes a first terminal group having two pairs of signal terminals and three pairs respectively composed of two adjacent signal terminals The grounding terminals are respectively located between the pair of signal terminals and between the two outer terminals, so that each pair of signal terminal pairs is located between the two grounding terminals, and the fixing portion and the extending portion of the terminals of the first terminal group are plate-shaped and the same The terminals are arranged side by side in the form of a board surface opposite to the board 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 and rear direction, and each of the ground terminals also has two a tail portion extending from the extension portion and spaced apart from each other at a 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 provided at the corresponding connections Located between the two junctions of the two tails of the ground terminal 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 the width of the board in the direction in which the extension is greater than each of the signal terminals The extension portion has a plate surface width transverse to the extending direction thereof, and the distance between the two tail portions of each of the ground terminals 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, wherein the grounding members of the first terminal group and the second terminal group of the first terminal group are respectively three The grounding members of the first terminal group and the second terminal group of the second terminal group are respectively two, 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 of the corresponding terminal group, and the horizontal portions are suspended across the pair 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 the first terminal group at intervals An extension portion of the grounding terminal, each of the grounding members integrally includes a horizontal connecting portion and three fastening portions respectively extending from the horizontal connecting portion, wherein the fastening portions are respectively fastened to the extension portions of the grounding terminals and the horizontal portion The connector is suspended across the pair of signal terminals. 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.