Electrical connector assembly and electrical connector

1. An electrical connector assembly, comprising:

an electrical connector, having a metallic plate and a plurality of terminals, the metallic plate separating the terminals into two different areas, the metallic plate having a first lateral surface, wherein the electrical connector further comprises an insulating body and the metallic plate is placed in the insulating body, the metallic plate further comprises a pair of side latches located on two opposite sides of the insulating body, and the first lateral surface faces away from the side latches; and

a circuit board, assembled to the electrical connector, the circuit board having a plurality of pads, a second lateral surface, and a top surface and a bottom surface opposite to each other, the pads being disposed on the top surface or the bottom surface, the second lateral surface being boarded between the top surface and the bottom surface, wherein the circuit board further comprises at least one grounding circuit exposed from the second lateral surface and facing toward the first lateral surface, so that the metallic plate is electrically connected to the grounding circuit by the first lateral surface when the circuit board is assembled to the electrical connector.

2. The electrical connector assembly according to claim 1 , wherein the metallic plate comprises at least one first protrusion located on the first lateral surface, extending toward the second lateral surface and structurally connecting to the second lateral surface, and the metallic plate is electrically connected to the grounding circuit by the first protrusion.

3. The electrical connector assembly according to claim 2 , wherein the first lateral surface and the second lateral surface are parallel to each other and maintain a gap.

4. The electrical connector assembly according to claim 2 , wherein an orthographic projection range of a high speed signal transmission terminal pair among the terminals on a plane where the metallic plate is located partially overlaps with the first protrusion.

5. The electrical connector assembly according to claim 2 , wherein the electrical connector assembly is a Type-C electrical connector, the metallic plate comprises a pair of first protrusions, and the pair of first protrusions partially cover TX+/TX− terminals and RX+/RX− terminals, respectively.

6. The electrical connector assembly according to claim 2 , wherein the metallic plate comprises a recess and a pair of first protrusions located in the recess and opposite to each other, the circuit board comprises a second protrusion and a pair of grounding circuits located on the second protrusion and facing away from each other, and the second protrusion is assembled in the recess so that the pair of first protrusions are abutted to the pair of grounding circuits respectively.

7. The electrical connector assembly according to claim 1 , wherein the first lateral surface and the second lateral surface have mutually complementary contours.

8. The electrical connector assembly according to claim 1 , wherein each of the first lateral surface and the second lateral surface has a stepped contour.

9. The electrical connector assembly according to claim 1 , wherein the first lateral surface and the second lateral surface are in an interference fit.

10. The electrical connector assembly according to claim 1 , wherein the metallic plate further comprises a pair of grounding legs respectively disposed on a pair of grounding pads among the pads, and the first lateral surface is located between the pair of grounding legs.

11. The electrical connector assembly according to claim 1 , wherein a direction in which the metallic plate is electrically connected to the grounding circuit is consistent with a plug/unplug direction of the electrical connector assembly.

12. The electrical connector assembly according to claim 1 , wherein a direction in which the metallic plate is electrically connected to the grounding circuit is orthogonal to a plug/unplug direction of the electrical connector assembly.

13. An electrical connector assembly, comprising:

an electrical connector, comprising:

a plurality of terminals, comprising a first set of terminals and a second set of terminals;

an insulative housing, comprising an insulative main housing and an insulating body, wherein an insertion space is formed inside the insulative main housing, the first set of terminals are disposed on a top inner side of the insulative main housing, the second set of terminals are disposed on a bottom inner side of the insulative main housing, the first set of terminals and the second set of terminals are separated by the insertion space, and contact portions of the first set of terminals and contact portions of the second set of terminals are toward the insertion space;

a metallic plate retained in the insulating body and located between the first set of terminals and the second set of terminals, wherein the metallic plate has a first lateral surface and the metallic plate further comprises a pair of side latches located on two opposite sides of the insulative main housing and heads of the side latches are toward the insertion space; and

a metallic shell enclosing the insulative main housing; and

a circuit board, assembled to the electrical connector, the circuit board having a plurality of pads, a second lateral surface, and a top surface and a bottom surface opposite to each other, the pads being disposed on the top surface or the bottom surface, the second lateral surface being between the top surface and the bottom surface, wherein the circuit board further comprises at least one grounding circuit exposed from the second lateral surface and facing toward the first lateral surface, so that the metallic plate is electrically connected to the grounding circuit by the first lateral surface when the circuit board is assembled to the electrical connector.

14. The electrical connector assembly according to claim 13 , wherein the metallic plate comprises at least one first protrusion located on the first lateral surface, extending toward the second lateral surface and structurally connecting to the second lateral surface, and the metallic plate is electrically connected to the grounding circuit by the first protrusion.

15. The electrical connector assembly according to claim 14 , wherein the first lateral surface and the second lateral surface are parallel to each other and maintain a gap.

16. The electrical connector assembly according to claim 14 , wherein an orthographic projection range of a high speed signal transmission terminal pair among the terminals on a plane where the metallic plate is located partially overlaps with the first protrusion.

17. An electrical connector assembled with a circuit board, the circuit board having a plurality of pads, a second lateral surface, and a top surface and a bottom surface opposite to each other, the pads being disposed on the top surface or the bottom surface, the second lateral surface being between the top surface and the bottom surface and at least one grounding circuit exposed from the second lateral surface, the electrical connector comprising:

an insulating body;

a metallic plate; and

a plurality of terminals, the terminals separated by the metallic plate into two different areas, wherein the metallic plate comprises a pair of side latches located on two opposite sides of the insulating body, the metallic plate are placed in the insulating body, the metallic plate further comprises a first lateral surface, and the first lateral surface faces away from the side latches, wherein the second lateral surface faces toward the first lateral surface, so that the metallic plate is electrically connected to the grounding circuit by the first lateral surface when the circuit board is assembled to the electrical connector.

18. The electrical connector according to claim 17 , wherein the metallic plate comprises at least one first protrusion located on the first lateral surface, extending toward the second lateral surface and structurally connecting to the second lateral surface, and the metallic plate is electrically connected to the grounding circuit by the first protrusion.

19. An electrical connector assembled with a circuit board, the circuit board having a plurality of pads, a second lateral surface, and a top surface and a bottom surface opposite to each other, the pads being disposed on the top surface or the bottom surface, the second lateral surface being between the top surface and the bottom surface and at least one grounding circuit exposed from the second lateral surface, the electrical connector comprising:

a plurality of terminals, comprising a first set of terminals and a second set of terminals;

an insulative housing, comprising an insulative main housing and an insulating body, wherein an insertion space is formed inside the insulative main housing, the first set of terminals are disposed on a top inner side of the insulative main housing, the second set of terminals are disposed on a bottom inner side of the insulative main housing, the first set of terminals and the second set of terminals are separated by the insertion space, and contact portions of the first set of terminals and contact portions of the second set of terminals are toward the insertion space;

a metallic plate retained in the insulating body and located between the first set of terminals and the second set of terminals, wherein the metallic plate has a first lateral surface and the metallic plate further comprises a pair of side latches located on two opposite sides of the insulative main housing and heads of side latches are toward the insertion space; and

a metallic shell enclosing the insulative main housing, wherein the second lateral surface faces toward the first lateral surface, so that the metallic plate is electrically connected to the grounding circuit by the first lateral surface when the circuit board is assembled to the electrical connector.

20. The electrical connector according to claim 18 , wherein the metallic plate comprises at least one first protrusion located on the first lateral surface, extending toward the second lateral surface and structurally connecting to the second lateral surface, and the metallic plate is electrically connected to the grounding circuit by the first protrusion.