Electrical connector and electrical device assembled with the same therein

1. An electrical connector for receiving a complementary plug connector therein, comprising:

an insulative housing comprising a base and a mating tongue extending forwardly from the base in a front-to-back direction, the mating tongue comprising two opposite mating faces in a vertical direction perpendicular to said front-to-back direction, and two side faces connecting therebetween in a transverse direction perpendicular to both said front-to-back direction and said transverse direction;

a plurality of terminals retained in the insulative housing, each of the terminals comprising a contacting section exposed on the mating face and a tail extending out of the base; and

a metallic shell forming a receiving space surrounding the insulative housing, the shell comprising a holding portion retained to the base and a mating portion extending along said front-to-rear direction; wherein

the mating portion of the shell comprises two short-walls facing to the two side faces of the mating tongue in the transverse direction, and at least one of the mating faces of the mating tongue is exposed to exterior in said vertical direction without any long-wall of said shell linked between said two short-walls in the transverse direction for shielding in the vertical direction so as to minimize a dimension of said mating portion in the vertical direction.

2. The electrical connector as claimed in claim 1 , wherein the shell is not formed by a way of stamping but in a die-casting molding process, and each of the short-walls comprises an inwardly arcuate interior surface so as to restrict movement of the complementary plug in the vertical direction during mating.

3. The electrical connector as claimed in claim 2 , wherein a connecting surface between the two vertical ends of the two short-walls, in the vertical direction, complies with an exterior surface of said complementary plug connector during mating.

4. The electrical connector as claimed in claim 2 , wherein each of the short-walls forms a planar exterior surface in the vertical direction so as to have opposite vertical ends of each of the short-walls, in the vertical direction, form a larger thickness thereof than other portions of each of the short-walls.

5. The electrical connector as claimed in claim 2 , wherein said shell further includes only one long-wall.

6. The electrical connector as claimed in claim 5 , wherein a thickness of the long-wall of the shell is smaller than that of the short-wall of the shell.

7. The electrical connector as claimed in claim 5 , wherein the holding portion of the shell comprises two short-walls and two long-walls, and a front face of the long-wall is coplanar with a front face of the base in the vertical direction.

8. The electrical connector as claimed in claim 5 , wherein the holding portion of the shell comprises an upper long-wall and a lower long-wall, and an exterior surface of the upper long-wall of the shell is coplanar with an exterior surface of the long-wall of the mating portion.

9. The electrical connector as claimed in claim 5 , wherein the holding portion comprises a rear wall extending downwardly from a rear edge of the upper long-wall of the holding portion.

10. The electrical connector as claimed in claim 2 , further comprises a grounding member and a shielding plate located between the two opposite mating feces of the mating tongue, the grounding member surrounds a root of the mating tongue neighboring to the base, the grounding member comprises two extending taps mounted on the long-wall of the holding portion of the shell, the ground member contacts with the shielding plate, and the shielding plate comprises two stopping taps adjacent to the grounding member.

11. An electrical device comprising:

a case comprising a mating space forwardly communicating with an exterior along a front-to-back direction;

a printed circuit board located in the case and behind the mating space in said front-to-back direction; and

an electrical connector mounted on the printed circuit board including:

an insulative housing comprising a base and a mating tongue extending forwardly from the base, the mating tongue comprising two opposite mating faces in a vertical direction perpendicular to said front-to-back direction, and two side faces connecting therebetween in a transverse direction perpendicular to both said front-to-back direction and said vertical direction;

a plurality of terminals retained in the insulative housing, each of the terminals comprising a contacting section exposed on the mating face; and

a shell forming a receiving space surrounding the insulative housing and comprising a holding portion retained to the base behind a front face of said base so as to expose substantially the whole mating tongue; wherein

the mating tongue is inserted into and directly received and exposed in the mating space, and the holding portion forms a pair of mounting taps mounted to the case.

12. The electrical device as claimed in claim 11 , wherein the printed circuit board cooperates with the case to sandwich the pair of mounting taps in the vertical direction.

13. The electrical device as claimed in claim 12 , wherein the tail of the terminals are removeably pressed upon the printed circuit board in the vertical direction.

14. An electrical connector for receiving a complementary plug connector, comprising:

a terminal module including an insulative housing and a plurality of terminals retained therein, said housing including a base portion with a mating tongue extending forwardly from the base portion in a front-to-back direction, the mating tongue defining two opposite mating faces in a vertical direction perpendicular to said front-to-back direction, and two opposite side faces linked between the two opposite mating faces in the vertical direction and spaced from each other in a transverse direction perpendicular to both said front-to-back direction and said vertical direction;

a metallic shell formed by molding and having different thicknesses at different positions; wherein

said shell includes a pair of short walls located outside of the corresponding side faces, respectively, in the transverse direction, and at most a long wall linked between the pair of short walls and facing one corresponding mating face of said mating tongue in the vertical direction so as to expose the other mating face in the vertical direction for minimizing, along the vertical direction, a vertical dimension of a mating portion which is formed between said pair of short walls and encloses the mating tongue.

15. The electrical connector as claimed in claim 14 , wherein said pair of short walls forms a pair of inward arcuate interior faces so as to restrict the complementary plug connector in the vertical direction in the vertical direction.

16. The electrical connector as claimed in claim 15 , wherein each of said short walls has a larger thickness in said transverse direction at opposite vertical ends than other portions thereof.

17. The electrical connector as claimed in claim 14 , wherein said at most one long wall has a thickness smaller than that of each of said short walls.

18. The electrical connector as claimed in claim 14 , wherein each of the terminals includes a tail for mounting to a printed circuit board which is adapted located on a side directly facing to said the mating face in the vertical direction.

19. The electrical connector as claimed in claim 14 , wherein said shell has no long wall between said pair of short walls.