Electrical connector assembly with enhanced blind mating features

1. An electrical connector assembly, comprising:

a first connector unit, comprising a first connector, having an insulative housing with a plurality of contacts mounted thereon;

a printed circuit board, on which the first connector is seated, defining a pair of mounting sections at opposite ends thereof and located adjacent to the first connector;

an insulative cover, attached to a first surface of the printed circuit board which is opposite to the first connector, the insulative cover forming a pair of guiding posts retained in said mounting sections and a pair of stand-off sections located at opposite ends thereof for supporting the first connector during the mating process;

a metallic cover, attached to the insulative cover; and

a second connector, defining a pair of guiding apertures at opposite ends thereof for receiving said guiding posts.

2. The electrical connector assembly as described in claim 1 , wherein the second connector is located in a space defined between the pair of stand-off sections.

3. The electrical connector assembly as described in claim 1 , wherein the guiding posts are located at inner sides of the stand-off sections and protrude beyond a second surface of the printed circuit board which is opposite to the first surface.

4. The electrical connector assembly as described in claim 3 , wherein the metallic cover encloses the insulative cover with a pair of locking portions extending downwardly, each stand-off section defines a receiving slot at an outer side for receiving said locking portion.

5. The electrical connector assembly as described in claim 4 , wherein the metallic cover and the insulative cover engage with the printed circuit board by a soldering manner with solder pad formed on the metallic cover respectively soldering on the first surface and second surface of the printed circuit board.

6. The electrical connector assembly as described in claim 3 , wherein a plurality of cables are respectively connected to the first surface and second surface of the printed circuit board.

7. The electrical connector assembly as described in claim 3 , wherein the mounting section is an h-shaped opening, with the guiding posts received in a narrow side while the stand-off sections received in a wide side.

8. The electrical connector assembly as described in claim 3 , wherein the stand-off sections extend downwardly further than the guiding posts.

9. The electrical connector assembly as described in claim 1 , wherein the second connector defines a mating cavity surrounded by at least one metallic shield, said guiding apertures are defined at opposite ends of the mating cavity.

10. A connector, comprising:

an insulative housing having a pair of elongated side walls and a pair of end walls connecting with said side walls thereby defining a mating cavity therebetween, a mating tongue extending upwardly in said mating cavity with a plurality of second contact grooves defined thereon, a plurality of first contact grooves defined on the side walls and correspondingly facing the opposite second contact grooves;

a plurality of contacts divided into several contact groups which comprising at least a pair of contacts, each contact having a first contact portion received in the first contact groove and a second contact portion received in the second contact groove;

at least one metallic shell surrounding a periphery of the insulative housing, the metallic shell comprising a body portion having a plurality of solder legs extending out of the insulative housing and a plurality of grounding arms projecting into the mating cavity and received in the first contact grooves between the first contact portions of neighboring contact groups;

wherein a pair of guiding portions are formed at opposite ends of the insulative housing with guiding apertures defined thereon.

11. The connector as described in claim 10 , wherein a plurality of blocks are formed on an exterior face of the side walls, the metallic shell defines corresponding locking openings for receiving said blocks.

12. The connector as described in claim 11 , wherein the metallic shell is assembled on the insulative housing along an up-to-down direction and each of said blocks is configured as an L-shape.

13. The connector as described in claim 10 , wherein the solder legs and the grounding arms extend reversely from opposite edges of the body portion of the metallic shell.

14. An electrical connector assembly comprising:

a main printed circuit board;

a first connector mounted to the main printed circuit board;

a secondary printed circuit board position with regard to the main printed circuit board in a parallel relation;

a second connector mounted to the secondary printed circuit board and facing toward the main printed circuit board; and

a shell associated with the secondary printed circuit board and forming a guiding mechanism for blind mating with the first connector; wherein said shell is primarily located upon a surface of the secondary printed circuit board opposite to a surface on which the second connector is located.

15. The electrical connector assembly as claimed in claim 14 , wherein said shell includes at least an insulative piece or a metallic piece.

16. The electrical connector assembly as claim 14 , wherein said shell defines a pair of posts for guidable receipt in a pair of guiding recesses of the first connector.

17. The electrical connector assembly as claimed in claim 14 , further including a plurality of wires electrically and mechanically connected to the secondary printed circuit board.

18. The electrical connector assembly as claimed in claim 14 , wherein said shell defines a pair of posts for guidable receipt in a pair of guiding recesses of the first connector, and said pair of posts extend through the secondary printed circuit board.

19. The electrical connector assembly as claimed in claim 17 , wherein said wires are located upon two opposite surfaces of the secondary printed circuit board.