Connector

1. A connector, comprising:

a housing provided with a base and a mating portion protruding from the base, the base comprising a receiving cavity, the mating portion being provided with a mating surface and a slot, the slot extending through the mating surface and communicating with the receiving cavity;

at least one terminal module accommodated in the receiving cavity, the at least one terminal module comprising a plurality of signal terminals and an insulating block covering the signal terminals, each signal terminal being provided with a contact portion extending into the slot; and

at least one ground plate, the at least one ground plate and the at least one terminal module being arranged side by side;

wherein the insulating block is provided with a perforation hole, the ground plate is provided with a through hole communicating with the perforation hole; and

wherein the connector comprises a shielding member inserted in the perforation hole and the through hole.

2. The connector according to claim 1 , wherein the shielding member is made of a conductive plastic.

3. The connector according to claim 1 , wherein the shielding member does not contact the at least one ground plate and does not contact the signal terminals of the terminal module.

4. The connector according to claim 1 , wherein the shielding member contacts the at least one ground plate and does not contact the signal terminals of the terminal module.

5. The connector according to claim 4 , wherein the shielding member located in the terminal module is provided with a holding structure fixed to the at least one ground plate.

6. The connector according to claim 5 , wherein the holding structure of the shielding member comprises a protrusion which is fixed in the through hole.

7. The connector according to claim 1 , wherein the signal terminals are insert-molded in the insulating block, and the at least one ground plate is installed on a side surface of the insulating block.

8. The connector according to claim 1 , wherein a plurality of the terminal modules are provided, the insulating block of each terminal module comprises a first insulating block and a second insulating block, the signal terminals of each terminal module comprise a plurality of first signal terminals insert-molded in the first insulating block and a plurality of second signal terminals insert-molded in the second insulating block.

9. The connector according to claim 8 , wherein the perforation hole comprises a first perforation hole formed on the first insulating block and a second perforation hole formed on the second insulating block;

wherein the shielding member is inserted in the first perforation hole and the second perforation hole.

10. The connector according to claim 9 , wherein a plurality of the shielding members, a plurality of the first perforation holes and a plurality of the second perforation holes are provided, the first perforation holes are respectively in communication with the second perforation holes, and the shielding members are respectively inserted in the first perforation holes and the second perforation holes which are in communication with the first perforation holes.

11. The connector according to claim 9 , wherein a plurality of the ground plates are provided, two of the ground plates are respectively arranged on outer sides of the first insulating block and the second insulating block, and the shielding members are inserted in the first perforation holes, the second perforation holes and the through holes.

12. The connector according to claim 11 , wherein the shielding member does not contact the two ground plates and does not contact the first signal terminals and the second signal terminals.

13. The connector according to claim 11 , wherein the shielding member contacts the two ground plates and does not contact the first signal terminals and the second signal terminals.

14. The connector according to claim 8 , wherein the first signal terminals and the second signal terminals form a plurality of differential pairs.

15. The connector according to claim 8 , wherein the slot comprises a first slot and a second slot located below the first slot, the terminal module comprises four first signal terminals insert-molded in the first insulating block and four second signal terminals insert-molded in the second insulating block, both of the four first signal terminals and the four second signal terminals are divided into two groups and extend into the first slot and the second slot, respectively.

16. The connector according to claim 15 , further comprising a shielding plate located between the first slot and the second slot, and the shielding plate is in contact with each ground plate.

17. The connector according to claim 15 , wherein each first signal terminal of each terminal module comprises a first intermediate portion, a first contact portion extending from one end of the first intermediate portion and a first tail portion extending from the other end of the first intermediate portion, the first intermediate portion is located inside the first insulating block, the first contact portion protrudes from a front side of the first insulating block along a direction parallel to a mating direction of the connector, the first tail portion protrudes from a bottom side of the first insulating block along a mounting direction perpendicular to the mating direction of the connector; and

wherein each second signal terminal of each terminal module comprises a second intermediate portion, a second contact portion extending from one end of the second intermediate portion, and a second tail portion extending from the other end of the second intermediate portion, the second intermediate portion is located inside the second insulating block, the second contact portion protrudes from a front side of the second insulating block along the direction parallel to the mating direction of the connector, the second tail portion protrudes from a bottom side of the second insulating block along the mounting direction perpendicular to the mating direction of the connector.

18. The connector according to claim 1 , wherein each ground plate is integrally stamped from a metal plate, the ground plate comprises a third intermediate portion, a third contact portion extending from one end of the third intermediate portion, and a third tail portion extending from the other end of the third intermediate portion, the third contact portion extends along a direction parallel to a mating direction of the connector, and the third tail portion extends along a mounting direction perpendicular to the mating direction of the connector.

19. The connector according to claim 18 , wherein the through hole is provided on the third intermediate portion of the ground plate.

20. The connector according to claim 1 , wherein the shielding member has an L-shaped column shape and extends through the perforation hole and the through hole.