Interposer/electrical connector

1. An electrical coupling, the coupling comprising:

an interposer arranged to electrically connect an electrical connector to an electrical circuit,

the electrical connector comprising a plurality of electrical contacts and the electrical circuit comprising a plurality of electrical conductors,

the interposer comprising a body arranged to surround each electrical contact at a portion of the body proximate to the electrical conductors, said body comprising a plurality of ducts each arranged around an electrical contact and configured to extend from the body along at least part of the length of each contact towards the electrical connector; and

wherein the coupling further comprises a seal layer provided with a plurality of apertures each aperture aligning with a respective contact and wherein the seal layer is located at a portion of the body proximate to the electrical conductors.

2. The electrical coupling of claim 1 , wherein the body and ducts are integral with each other.

3. The electrical coupling of claim 1 , wherein each electrical contact comprises a biasing arrangement at a portion of the contact proximate to the electrical conductors, arranged to bias a distal end of the contact against a respective electrical conductor.

4. The electrical coupling of claim 3 , wherein the biasing arrangement is a spring arranged to bias a distal portion of the contact towards a respective conductor.

5. The electrical coupling of claim 1 , wherein each contact is an electrical conductor extending through the interposer and comprising a proximal end arranged for electrical contact with the electrical connector and a distal end arranged for electrical contact with an associated electrical conductor.

6. The electrical coupling of claim 1 , wherein the electrical contacts and the ducts have a complementary shape.

7. The electrical coupling of claim 1 , wherein inner surfaces of the ducts are in contact with outer surfaces of the contacts.

8. The electrical coupling of claim 1 , wherein a length of each contact is longer than a distance measured between a portion of the electrical connector associated with a proximal portion of a respective contact and a surface of an electrical conductor associated with a distal portion of the respective contact.

9. The electrical coupling of claim 1 , wherein the contacts are circular in cross-section and the ducts are arranged to surround each contact.

10. The electrical coupling of claim 1 , wherein the interposer includes an electrically insulating material.

11. The electrical coupling of claim 1 , wherein the interposer further comprises a peripheral wall surrounding and spaced from the ducts, said wall extending in a direction parallel with the ducts.

12. The electrical coupling of claim 11 , wherein the peripheral wall is a ring surrounding the ducts and extending in a direction parallel with the ducts and further comprising a radial space between the ducts and the wall, said space arranged to receive a portion of the electrical connector.

13. The electrical coupling of claim 11 , further comprising a peripheral ring arranged to surround a portion of the coupling adjacent to the peripheral wall, wherein the peripheral wall is integral with the body of the interposer.

14. The electrical coupling of claim 1 , further comprising an end cap arranged to connect an end of the coupling and to define a cavity into which electrical conductors may extend, wherein the end cap further comprises the seal layer arranged to abut with a side of an electrical conductor layer opposite to a side against which the contacts abut.

15. An electrical coupling, the coupling comprising:

a body configured to be integrated with a surface wherein the body comprises a plurality of ducts arranged to align with corresponding connections of an electrical connector at a first end and to align with a plurality of electrical conductors at a second end;

wherein the conductors are integrated with the surface, the ducts extending through the body, wherein each duct comprises an electrical contact, each electrical contact comprising a biasing arrangement at a portion of the contact proximate to the electrical conductors, to bias a distal end of the contact against a respective electrical conductor; and

wherein the coupling further comprises a seal layer provided with a plurality of apertures each aperture aligning with a respective contact and wherein the seal layer is located at a portion of the body proximate to the electrical conductors.

16. The electrical coupling of claim 15 , wherein the biasing arrangement is a spring arranged to bias a distal portion of the contact towards a respective conductor.

17. The electrical coupling of claim 15 , wherein a face of the body proximate to the electrical conductors comprises a convex profile corresponding to a predetermined curvature.

18. The electrical coupling of claim 17 , wherein the face of the body proximate to the electrical conductors further comprises a peripheral flange extending from the body for attachment to a structure.

19. The electrical coupling of claim 18 , wherein the flange and/or body are formed from a composite material.