Electrical connector having two terminal module units of same structure

1. An electrical connector comprising:

a terminal module including a first unit, a second unit, and a shielding plate between the first and second units, each of the first unit and the second unit having an insulative body and a row of contacts, the insulative body including a rear base and a front tongue; and

a shielding shell enclosing the terminal module; wherein

the first unit and the second unit have same structure;

wherein the terminal module includes an over-molding insulator molded to the first unit, the second unit, and the shielding plate.

2. The electrical connector as claimed in claim 1 , wherein each of the first unit and the second unit includes a respective outermost contact, and the outermost contact of the first unit engages the insulative body of the second unit and the outermost contact of the second unit engages the insulative body of the first unit.

3. The electrical connector as claimed in claim 1 , wherein each of the rear base of the first unit and the rear base of the second unit includes a hook and a hole, and the hook of the first unit engages the hole of the second unit and the hook of the second unit engages the hole of the first unit.

4. A method of making an electrical connector comprising steps of:

providing a pair of units each with a plurality of contacts integrally formed within an insulative body via an insert-molding process wherein said pair of units are same with each other;

providing a metallic shielding plate; and

assembling the pair of units in a back-to-back manner with the shielding plate therebetween in a vertical direction; wherein

in a transverse direction perpendicular to the vertical direction, each of the pair of units has a first securing device on one lateral side and a second securing device on the other lateral side symmetrically arranged with each other with regard to a front-to-back centerline extending along a front-to-back direction perpendicular to both the vertical direction and the transverse direction, so as to have the first securing device of one of the pair of units engages the second securing device of the other of the pair of units, and the second securing device of said one of the pair of units engages the first securing device of the other of the pair of units; wherein

said first securing device is different from said second securing device.

5. An electrical connector comprising:

a contact module including a first unit and a second unit back to back assembled with each other with a metallic shielding plate sandwiched therebetween in a vertical direction, each of the first unit and the second unit includes a plurality of contacts integrally retained in an insulative body, wherein

the first unit and the second unit are same with each other, and each of the first unit and the second unit is asymmetrically arranged with regard to a front-to-back centerline thereof extending along a front-to-back direction perpendicular to the vertical direction so as to have said first unit and said second unit reversely symmetrically arranged with each other in said vertical direction when viewed along the front-to-back direction;

wherein each of the first unit and a second unit has a pair of retaining posts respectively on two lateral sides in a transverse direction perpendicular to both the vertical direction and the front-to-back direction in a an offset manner along the front-to-back direction.

6. The electrical connector as claimed in claim 5 , wherein each of the first unit and the second unit has a hook and a hole symmetrically located at opposite lateral sides thereof in a transverse direction perpendicular to both the vertical direction and the front-to-back direction.

7. The method as claimed in claim 4 , wherein in each of said pair of units, one of two opposite outermost contacts of said contacts has a bent portion while the other of said two opposite outermost contacts of said contacts has no bent portion.

8. The electrical connector as claimed in claim 5 , wherein the metallic shielding plate is symmetrically arranged with regard to the front-to-back centerline.

9. The electrical connector as claimed in claim 8 , wherein said shielding plate includes a plurality of through holes symmetrically arranged with regard to the front-to-back centerline.

10. The electrical connector as claimed in claim 5 , wherein in each of the first unit and the second unit, both the contacts and the insulative body are asymmetrical with regard to the front-to-back centerline.

11. The electrical connector as claimed in claim 5 , further including a metallic shielding shell enclosing the contact module, wherein said shielding shell is not symmetrical with regard to the front-to-back centerline, either normally or reversely.

12. The electrical connector as claimed in claim 5 , wherein in each of said first unit and said second unit, one of two opposite outermost contacts of said contacts has a bent portion while the other of said two opposite outermost contacts of said contacts has no bent portion.

13. The method as claimed in claim 4 , wherein each of said pair of units is not symmetrical with regard to the front-to-back centerline while said pair of units are reversely symmetrical with each other relative to the front-to-back centerline in the vertical direction when view along the front-to-back direction.

14. The method as claimed in claim 13 , wherein the shielding plate is symmetrical with regard to the front-to-back centerline.

15. The method as claimed in claim 14 , wherein said first securing device is a hook and said second securing device is a hole receiving said hook.