ELECTRICAL CONNECTOR WITH A SIMPLE STRUCTURE

1 . An electrical connector, comprising:

a housing having a base portion and a tongue portion extending forwardly from the base portion;

a plurality of contacts retained in the housing and consisting of two pairs of differential signal contacts and a pair of grounding contacts between the two pairs of differential signal contacts, each contact having a contact portion, all contact portions being arranged in a row on one side of the tongue portion; and

a metal shell covering the housing to form a receiving space with the tongue portion for receiving an electrical plug.

2 . The electrical connector as claimed in claim 1 , wherein one pair of the differential signal contacts unidirectionally transmit video signal, and another pair of differential signal contacts bidirectionally transmit hybrid data signal.

3 . The electrical connector as claimed in claim 1 , wherein the tongue has an upper surface and a lower surface, the upper surface is formed with a protruding portion at a rear side thereof for stably holding a corresponding plug.

4 . The electrical connector as claimed in claim 3 , wherein the lower surface defines a plurality of passageways extending through the base portion from front to back to receive the contact portions.

5 . The electrical connector as claimed in claim 1 , wherein the housing has an accessorial board unitarily configured to be seated upon a circuit board and formed on a bottom portion of the base portion and spaced apart from the tongue portion along a vertical direction, and the accessorial board is located below the tongue portion and parallel with the tongue portion.

6 . The electrical connector as claimed in claim 5 , wherein the metal shell has a bottom wall located between the tongue portion and the accessorial board along the vertical direction, and the accessorial board has a pair of projections located at a lower side of the bottom wall to support the metal shell and prevent the metal shell from being distorted.

7 . The electrical connector as claimed in claim 1 , wherein the metal shell has a pair of opposed top wall and bottom wall, and a pair of opposed side walls bending from two sides of the top wall and connecting the bottom wall, the bottom wall is form with a pair of first walls extending toward to each other from lower ends of the side walls, a pair of second walls extending inwardly and upwardly from inner ends of the first walls, and a third wall connecting the upper ends of the second walls together.

8 . The electrical connector as claimed in claim 7 , wherein the first wall, third wall and the top wall are parallel to each other, and the third is located at an upper side of the first and second wall.

9 . The electrical connector as claimed in claim 7 , wherein the top wall has a spring arm extending into the receiving space and a pair of locking holes extending therethrough from up to down at two sides of the spring arm to lock with a corresponding plug.

10 . The electrical connector as claimed in claim 1 , wherein each contact has a retaining portion retained in the housing, a tail portion extending out of the housing to connect with a circuit board and a connecting portion connecting the retaining portion and the tail portion, and the connecting portion has a bending portion bending from a rear end of the retaining portion and a vertical portion connecting with the tail portion, the bending portion defines a width which is smaller than that of the vertical portion.

11 . An electrical connector assembly, comprising:

an electrical receptacle having a first housing, a plurality of first contacts retained therein and a first metal shell covering the first housing and forming a receiving space with the first housing, the first housing having a first base portion and a first tongue portion extending forwardly from the base portion, the first contacts consisting of two pairs of differential signal contacts and a pair of grounding contacts between the two pairs of differential signal contacts, the first metal shell having a first top wall with a spring arm extending into the receiving space; and

an electrical plug mating with the electrical receptacle and having a second housing, a plurality of second contacts corresponding to the first contacts and electrically connecting with the first contacts and a second metal shell covering the second housing, the second housing having a second base portion and a second tongue portion extending forwardly from the second base portion, the second metal shell having a second top wall with an opening extending therethrough in an up to down direction to lock with the spring arm;

wherein the first top wall defines at least a locking hole extending therethrough in the up to down direction, and the electrical plug further comprises at least a locking contact retained in the second housing to lock with the locking hole when the electrical plug is inserted into the receiving space.

12 . The electrical connector assembly as claimed in claim 11 , wherein the first contacts are arranged in a row, and each first contact has a contact portion extending to one side of the first tongue.

13 . The electrical connector assembly as claimed in claim 11 , wherein one pair of the differential signal contacts unidirectionally transmit video signal, and another pair of differential signal contacts bidirectionally transmit hybrid data signal.

14 . The electrical connector assembly as claimed in claim 11 , wherein the spring arm is located at a middle position of the first top wall in a transverse direction.

15 . The electrical connector assembly as claimed in claim 14 , wherein the first top wall defines a pair of said locking holes, and the electrical plug has a pair of locking contacts to engage with the locking holes.

16 . The electrical connector assembly as claimed in claim 15 , wherein the second tongue portion defines a pair of slots extending therethrough along the up to down direction and a plurality of passageways between the slots to receive the second contacts, and the locking contacts each has a securing portion positioned in the base portion, an arm portion extending forwardly from the securing portion and received in the slot, and a locking portion extending upwardly from a front end of the arm portion to lock with the locking holes, and the arm portion can drive the locking portion moving in the up to down direction.

17 . An electrical connector assembly comprising:

a first connector including:

a first insulative housing having a base with a mating tongue forwardly extending therefrom along a mating direction, said mating tongue defining opposite first and second faces thereon in a vertical direction perpendicular to said mating direction;

a first metallic shell assembled to the first housing and cooperating with the first housing to form a first mating port; and

a plurality of first contacts disposed in the housing, each of said contact defining a straight contact section exposed upon the first face; wherein

the mating tongue defines a first wedged structure in the vertical direction and a second wedge structure in a transverse direction perpendicular to both said mating direction and said vertical direction so as to ease mating with a second connector.

18 . The electrical connector assembly as claimed in claim 17 , wherein the first wedged structure is offset from the second wedged structure in the mating direction.

19 . The electrical connector assembly as claimed in claim 18 , wherein the first shell defines a spring arm having an apex essentially located in front of the first wedged structure while behind the second wedged structure in said mating direction.