Electrical connector

1. An electrical connector, comprising:

a housing made of rigid electrically insulating material having an outer portion and an inner portion designed to receive an electrical terminal, wherein the housing extends from a rear section to a front section;

a single piece shielding made of electrically conductive material surrounding the inner portion, extending from a rear section to a front section, and including a rear extension; and

a sealing system comprising an outer seal disposed on the rear extension of the shielding between said shielding and the outer portion of the housing, and an inner seal disposed between the inner portion and said shielding, wherein apertures of the inner portion cooperate with a locking lance of said shielding in order to ensure a stable connection between the inner portion and the shielding and wherein at least one latching element of said outer portion cooperates with a complementary latching element of the inner portion in order to ensure a fixed position between the inner and outer portions, whereby the outer seal provides a sealing continuity between the rear extension of the shielding and the outer portion and the inner seal provides a sealing continuity between the inner portion and the shielding.

2. The electrical connector according to claim 1 , wherein the rear section of the inner portion defines at least two cylindrically shaped passageways adapted to be each passed through an electrical device wall.

3. The electrical connector according to claim 1 , wherein, at the front section of the housing, the inner portion defines at least two cylindrically shaped openings into which a front end of another electrical connector can be coupled.

4. The electrical connector according to claim 1 , wherein the rear extension extends radially relative to a centre of the shielding in an assembly plane transverse to a mating axis.

5. The electrical connector according to claim 1 , wherein, at the rear section of the housing, the outer portion defines another locking system in order to provide a screw connection between the electrical connector and a complementary electrical device.

6. The electrical connector according to claim 1 , wherein an inner surface of the outer portion defines a plurality of inner projections designed to assist an assembling process between the shielding and the housing.

7. A connector assembly comprising a connector according to claim 1 , and a device having a wall onto which this connector is mounted and wherein the rear extension is enclosed between the outer seal, the inner seal and the wall.

8. A method for assembling an electrical connector, comprising the steps of:

providing a housing made of rigid electrically insulating material having an outer portion and an inner portion designed to receive an electrical terminal, wherein the housing extends from a rear section to a front section;

providing a single piece shielding made of electrically conductive material surrounding the inner portion, extending from a rear section to a front section, and including a rear extension;

providing a sealing system comprising an outer seal disposed on the rear extension of the shielding between said shielding and the outer portion of the housing, and an inner seal disposed between the inner portion and said shielding;

mounting the shielding on the inner portion, wherein apertures of the inner portion cooperate with a locking lance of said shielding in order to ensure a stable connection between them;

inserting the outer seal on the rear extension of the shielding;

mounting the outer portion on the shielding, whereby the outer seal provides a sealing continuity between the rear extension of the shielding and the outer portion, and wherein at least one latching element of said outer portion cooperates with a complementary latching element of the inner portion in order to ensure a fixed position between them; and

mounting the inner seal on the rear section of the inner portion, whereby said inner seal provides a sealing continuity between the inner portion and the shielding.