Coaxial wet connector with spring operated piston

• US 4,174,875 A
• Filed: 05/30/1978
• Issued: 11/20/1979
• Est. Priority Date: 05/30/1978
• Status: Expired due to Term

• Current Assignee: the united states of america as represented by the secretary of the navy
• Original Assignee: the united states of america as represented by the secretary of the navy
• Inventors: Wilson, Jeffrey V., Bayha, Jack, Schaefer, James H., Glowacz, Anthony A.
• Primary Examiner(s): Abrams, Neil
• Application Number:
  US05/910,249
• Time in Patent Office: 539 Days
• Field of Search: 339/94 C, 339/117 R, 339/117 P, 339/177 E, 339/177 R, 339/91 P
• US Class Current: 439/349
• CPC Class Codes: H01R 13/523 for use under water
• CPC Class Codes: Y10S 439/944 Coaxial connector having circuit-interrupting provision effected by mating or having "dead" contact activated after mating

Abstract

A coaxial wet connector for connecting coaxail conductors of electromechaal ocean cables underwater either by a diver or submersible manipulator. The connector comprises a male section having a male inner conductor extending outwards from a concentric male outer conductor and a female section containing a spring biased shuttle piston for receiving the male inner conductor upon mating. An O-ring wiping seal wipes the male inner conductor clean of water as the male inner conductor drives the shuttle piston rearward within a female housing until electrical interconnection between the male and female sections is completed. A pressure compensating bladder removes water trapped adjacent an interconnection surface during mating and returns the water to the interconnection surface during decoupling thereby preventing a hydraulic lock between the male and female sections. A plurality of latch members pivotably connected to the male section and operable to engage a ridge on the feamle section is provided for transferring the mechanical forces from the female outer conductor to the female housing to the male housing and back to the male outer conductor.

Claims

1. An electrical coaxial wet connector, including a male and a female section for mating which produces a nearly perfect impedance match while maintaining a coaxial mode of signal propagation, comprising:

a. a female housing having a central opening therein and a longitudinal axis;

b. a female inner conductor disposed within said female housing along the longitudinal axis thereof;

c. a female outer conductor disposed within said female housing concentric with said inner conductor, said female outer conductor projecting outwards from said female inner conductor such that an interconnection space is formed within said female outer conductor, said female outer conductor having a termination end;

d. female dielectric means disposed between said inner and outer female conductors for providing electrical insulation therebetween;

e. a male housing having a central opening therein and a longitudinal axis, said male housing interfitting with said female housing with said female housing being partially surrounded by said male housing after mating;

f. a male inner conductor disposed within said male housing along the longitudinal axis thereof;

g. a male outer conductor disposed within said male housing concentric with said inner conductor, said male inner conductor projecting outwards from said male outer conductor, said male outer conductor adapted to receive said female outer conductor in electrical connection therewith;

h. male dielectric means disposed between said inner and outer male conductors for providing electrical insulation and a water-tight seal therebetween;

i. male facing means disposed concentric with said male outer conductor between said male outer conductor and said male housing, said male facing means forming a water-tight seal therebetween;

j. female facing lip means disposed concentric with said female outer conductor between said female outer conductor and said female housing, said female facing means forming a water-tight seal therebetween;

k. shuttle piston means disposed within said interconnection space for receiving said male inner conductor and electrically interconnecting said male and female inner conductors, said shuttle piston means being slidable within said interconnection space, said piston means having a front side for receiving said male inner conductor and a back side for engaging said female inner conductor;

l. seal means disposed within said interconnection space adjacent said female outer conductor termination end for providing a water-tight seal between said shuttle piston means and said female outer conductor before mating and between said male inner conductor and said female outer conductor after mating, thereby preventing water from entering said interconnection space rearward of said seal means;

m. spring bias means for maintaining said shuttle piston means in abutting relationship with said seal means before mating and for automatically returning said shuttle piston means to said abutting relationship during unmating.

2. The apparatus of claim 1 wherein said female facing lip means is configured to receive said male facing means in abutting relationship thereto with a water-tight seal being formed therebetween during mating.

3. The apparatus of claim 1 wherein said shuttle piston means includes:

a. a center conductor having electrical contacts on either end, said electrical contacts configured to receive said male inner conductor and said female inner conductor; and

b. electrical insulating means circumferentially disposed about said center conductor.

4. The apparatus of claim 3 wherein said electrical insulating means contains at least one opening therethrough for the passage of dielectric fluid.

5. The apparatus of claim 3 wherein said electrical insulating means is fabricated from a rigid material and abuts said female outer conductor.

6. The apparatus of claim 1 wherein said female inner conductor includes a rigid dielectric projection member rigidly attached thereto, said projection member is disposed such that before mating said shuttle piston back side is electrically decoupled from said female inner conductor.

7. The apparatus of claim 1 wherein said spring bias means is coupled between said shuttle piston means and said rigid dielectric projection member.

8. The apparatus of claim 1 wherein said spring is coupled between said shuttle piston means and said female outer conductor.

9. The apparatus of claim 1 wherein said male dielectric means includes a rigid core dielectric means circumferentially disposed about said male inner conductor between said termination end and said male outer conductor, said core dielectric means configured to engage said seal means providing a watertight seal between said male inner conductor and said female outer conductor after mating.

10. The apparatus of claim 1 further including pressure compensation means fluidically communicating with said interconnection space adjacent the front side of said shuttle piston means for removing fluid trapped within said interconnection space during mating and for returning said fluid to said interconnection space during decoupling whereby hydraulic locks are prevented from forming during mating and decoupling.

11. The apparatus of claim 10 wherein said pressure compensation means includes at least one pressure compensating bladder having a portion thereof exposed to the ambient environment and means for fluidically coupling said pressure compensating bladder with said interconnection space adjacent the front side of said shuttle piston means.

12. The apparatus of claim 1 wherein said interconnection space rearward of said seal means is filled with a dielectric fluid.

13. The apparatus of claim 1 wherein said front side and said back side of said shuttle piston means includes electrical contact means rotatable therewith whereby relative rotation of said male and female sections may occur without degradation of the electrical connection therebetween.

14. The apparatus of claim 13 wherein said contact means includes annular multilam louvered contact members.

15. The apparatus of claim 1 further including means adjacent said male housing for transmitting a mechanical load from said male housing to said female housing.

16. The apparatus of claim 15 wherein said load transmitting means includes latch means adjacent said male housing for interlocking with said female housing after mating.

17. The apparatus of claim 16 wherein said latch means includes:

a. a plurality of latch members operable to move from an unlatched position to a latching position;

b. bias means adjacent each said latch member for maintaining said latch member in latching position;

c. means for moving said latch member from said latching position to said unlatched position when actuated.

18. The apparatus of claim 17 wherein said latch member moving means includes a collar slidably disposed adjacent said male housing and operable to engage said latch members such that said latch members are moved from said unlatched position to said latched position or vice versa in response to the movement of said collar.

19. The apparatus of claim 18 wherein said collar further includes a detent operable to engage a lip integral with said male housing.

20. The apparatus of claim 18 wherein said collar further includes bias means for maintaining said slidable collar in a forward position such that said latch members are disposed in said latching position.

21. The apparatus of claim 20 wherein said collar bias means includes a spring connected between said slidable collar and said male housing.

22. The apparatus of claim 17 wherein said latch member bias means includes a spring.

23. The apparatus of claim 18 further including means disposed between said collar and said male housing for facilitating the sliding of said collar with respect to said male housing.

24. The apparatus of claim 23 wherein said sliding facilitating means includes a plurality of ball bearings.

25. The apparatus of claim 17 further including a latch lip integral with said female housing and disposed for engagement with said latch members when in said latching position.

26. The apparatus of claim 1 wherein said male housing includes a flared section for facilitating mating of said male and female sections.

27. The apparatus of claim 1 wherein said seal means further includes a bulkhead for retaining said shuttle piston means within said interconnection space.

28. The apparatus of claim 27 wherein said seal means further includes an O-ring seal disposed within a groove in said bulkhead.

29. An electrical coaxial wet connector, including a male and a female section for mating which produces a nearly perfect impedance match while maintaining a coaxial mode of signal propagation, comprising:

a. a female section having a central opening therein and a longitudinal axis;

b. a female inner conductor disposed within said female section along the longitudinal axis thereof;

c. a female outer conductor concentric with said inner conductor, said female outer conductor projecting outwards from said female inner conductor such that an interconnection space is formed within said female outer conductor, said female outer conductor having a termination end;

d. female dielectric means disposed between said inner and outer female conductors for providing electrical insulation therebetween;

e. a male section having a central opening therein and a longitudinal axis, said male section interfitting with said female section with said female outer conductor being partially surrounded by said male outer conductor after mating;

f. a male inner conductor disposed within said male section along the longitudinal axis thereof;

g. a male outer conductor disposed within said male section concentric with said inner conductor, said male outer conductor projecting outwards from said male inner conductor, said male outer conductor adapted to receive said female outer conductor in electrical connection therewith;

h. male dielectric means disposed between said inner and outer male conductors for providing electrical insulation and a water-tight seal therebetween;

i. shuttle piston means disposed within said interconnection space for receiving said male inner conductor and electrically interconnecting said male and female inner conductors, said shuttle piston means being slidable within said interconnection space, said piston means having a front side for receiving said male inner conductor and a back side for engaging said female inner conductor;

j. seal means disposed within said interconnection space adjacent said female outer conductor termination end for providing a water-tight seal between said shuttle piston means and said female outer conductor before mating and between said male inner conductor and said female outer conductor after mating, thereby preventing water from entering said interconnection space rearward of said seal means; and

k. spring bias means for maintaining said shuttle piston means in abutting relationship with said seal means before mating and for automatically returning said shuttle piston means to said abutting relationship during unmating.

30. The apparatus of claim 29 wherein said shuttle piston means includes:

a. a center conductor having electrical contacts on either end, said electrical contacts configured to receive said male inner conductor and said female inner conductor; and

b. electrical insulating means circumferentially disposed about said center conductor.

31. The apparatus of claim 30 wherein said electrical insulating means contains at least one opening therethrough for the passage of dielectric fluid.

32. The apparatus of claim 30 wherein said electrical insulating means is fabricated from a rigid material and abuts said female outer conductor.

33. The apparatus of claim 29 wherein said female inner conductor includes a rigid dielectric projection member rigidly attached thereto, said projection member is disposed such that before mating said shuttle piston back side is electrically decoupled from said female inner conductor.

34. The apparatus of claim 29 wherein said bias means includes a spring coupled between said shuttle piston means and said female outer conductor.

35. The apparatus of claim 29 wherein said male dielectric means includes a rigid core dielectric means circumferentially disposed about said male inner conductor between said termination end and said male outer conductor, said core dielectric means configured to engage said seal means providing a water-tight seal between said male inner conductor and said female outer conductor after mating.

36. The apparatus of claim 29 wherein said interconnection space rearward of said seal means is filled with a dielectric fluid.

37. The apparatus of claim 29 wherein said front side and said back side of said shuttle piston means includes electrical contact means rotatable therewith whereby relative rotation of said male and female sections may occur without degradation of the electrical connection therebetween.

38. The apparatus of claim 37 wherein said contact means includes annular Multilam louvered contact members.

39. The apparatus of claim 29 further including means adjacent said male section for transmitting a mechanical load from said male outer conductor to said female outer conductor.

40. The apparatus of claim 39 wherein said load transmitting means includes latch means adjacent said male section for interlocking with said female section after mating.

41. The apparatus of claim 40 wherein said latch means includes:

a. a plurality of latch members operable to move from an unlatched position to a latching position;

b. bias means adjacent each said latch member for maintaining said latch member in latching position;

c. means for moving said latch member from said latching position to said unlatched position when actuated.

42. The apparatus of claim 41 wherein said latch member moving means includes a collar slidably disposed adjacent said male section and operable to engage said latch members such that said latch members are moved from said unlatched position to said latched position or vice versa in response to the movement of said collar.

43. The apparatus of claim 42 wherein said collar further includes a detent operable to engage a lip integral with said male outer conductor.

44. The apparatus of claim 42 wherein said collar further includes bias means for maintaining said slidable collar in a forward position such that said latch members are disposed in said latching position.

45. The apparatus of claim 44 wherein said collar bias means includes a spring connected between said slidable collar and said male outer conductor.

46. The apparatus of claim 41 wherein said latch member bias means includes a spring.

47. The apparatus of claim 41 further including means disposed between said collar and said male section for facilitating the sliding of said collar with respect to said male section.

48. The apparatus of claim 47 wherein said sliding facilitating means includes a plurality of ball bearings.

49. The apparatus of claim 41 further including a latch lip integral with said female outer conductor and disposed for engagement with said latch members when in said latching position.

50. The apparatus of claim 29 wherein said male housing includes a flared section for facilitating mating of said male and female sections.

51. The apparatus of claim 29 wherein said seal means further includes a bulkhead for retaining said shuttle piston means within said interconnection space.

52. The apparatus of claim 51 wherein said seal means further includes an O-ring seal disposed within a groove in said bulkhead.

53. The apparatus of claim 29 wherein said male and female outer conductors are exposed to the ambient environment.

54. The apparatus of claim 33 wherein said spring bias means includes a spring coupled between said shuttle piston means and said rigid dielectric projection member.

55. An electrical coaxial wet connector, including a male and a female section for mating which produces a nearly perfect impedance match while maintaining a coaxial mode of signal propagation, comprising:

a. a female housing having a central opening therein and a longitudinal axis;

b. a female inner conductor disposed within said female housing along the longitudinal axis thereof;

c. a female outer conductor disposed within said female housing concentric with said inner conductor, said female outer conductor projecting outwards from said female inner conductor such that an interconnection space is formed within said female outer conductor, said female outer conductor having a termination end;

d. female dielectric means disposed between said inner and outer female conductors for providing electrical insulation therebetween;

e. a male housing having a central opening therein and a longitudinal axis, said male housing interfitting with said female housing with said female housing being partially surrounded by said male housing after mating;

f. a male inner conductor disposed within said male housing along the longitudinal axis thereof;

g. a male outer conductor disposed within said male housing concentric with said inner conductor, said male inner conductor projecting outwards from said male outer conductor, said male outer conductor adapted to receive said female outer conductor in electrical connection therewith;

h. male dielectric means disposed between said inner and outer male conductors for providing electrical insulation and a water-tight seal therebetween;

i. male facing means disposed concentric with said male outer conductor between said male outer conductor and said male housing, said male facing means forming a water-tight seal therebetween;

j. female facing lip means disposed concentric with said female outer conductor between said female outer conductor and said female housing, said female facing means forming a water-tight seal therebetween;

k. shuttle piston means disposed within said interconnection space for receiving said male inner conductor and electrically interconnecting said male and female inner conductors, said shuttle piston means being slidable within said interconnection space, said piston means having a front side for receiving said male inner conductor and a back side for engaging said female inner conductor;

l. seal means disposed within said interconnection space adjacent said female outer conductor termination end for providing a water-tight seal between said shuttle piston means and said female outer conductor before mating and between said male inner conductor and said female outer conductor after mating, thereby preventing water from entering said interconnection space rearward of said seal means;

m. bias means for biasing said shuttle piston means in abutting relationship with said seal means before mating; and

n. pressure compensation means fluidically communication with said interconnection space adjacent the front side of said shuttle piston means for removing fluid trapped within said interconnection space during mating and for returning said fluid to said interconnection space during decoupling whereby hydraulic locks are prevented from forming during mating and decoupling.

56. The apparatus of claim 55 wherein said pressure compensation means includes at least one pressure compensating bladder having a portion thereof exposed to the ambient environment and means for fluidically coupling said pressure compensating bladder with said interconnection space adjacent the front side of said shuttle piston means.