Socket-type electrical connector

• US 5,667,413 A
• Filed: 11/13/1995
• Issued: 09/16/1997
• Est. Priority Date: 11/13/1995
• Status: Expired due to Term

• Current Assignee: AEES Incorporated (PKC Group OYJ)
• Original Assignee: Alcoa Fujikura Ltd. (Howmet Aerospace, Inc.)
• Inventors: Trafton, Michael L.
• Primary Examiner(s): SWANN, JUDY J
• Application Number:
  US08/556,494
• Time in Patent Office: 673 Days
• Field of Search: 439/842, 439/843, 439/851-857, 439/861, 439/862, 439/825, 439/826, 439/271
• US Class Current: 439/843
• CPC Class Codes: H01R 13/187 with spring member in the socket
• CPC Class Codes: H01R 13/5219 Sealing means between coupling parts, e.g. interfacial seal

Abstract

A female electrical connector includes a housing defining a generally cylindrical bore therewithin. The connector includes a contact cage disposed, and retained, within the housing. The contact cage includes a number of contact blades disposed so as to provide a radial resilience. In some embodiments, an environmental seal is retained within the housing. The connector provides a high current capacity, low insertion force connector which may be readily fit over post-type electrical terminals.

Claims

1. A female electrical connector comprising:

a housing having an open end, said housing defining an interior surface, a first portion of which encloses a generally cylindrical interior volume;

a contact cage disposed within, and in electrical communication with, said housing and including a contact portion, a base portion, and a support portion which is joined to said contact portion and said base portion, said contact portion comprising a cylindrical member, disposed within, and coaxially aligned with, said cylindrical interior volume, and including a plurality of resilient contact blades, each blade having a first end thereof which is joined to the support portion of said contact cage;

a retainer configured to fit into said housing and to urge the base portion of said contact cage into engagement with the interior surface of said housing so as to retain said contact cage therein; and

an elastomeric o-ring seal supported in said housing, in coaxial alignment with said cylindrical interior volume, by said retainer.

2. A connector as in claim 1, wherein each of said contact blades includes a contact point defined thereupon, said contact points of said blades being disposed so as to extend radially into said cylindrical interior volume.

3. A connector as in claim 2, wherein the contact points on adjacent blades are longitudinally displaced relative to one another.

4. A connector as in claim 1, wherein said housing is configured as a cylindrical canister having a closed end opposite said open end.

5. A connector as in claim 1, wherein said base portion comprises a frusto-conical member.

6. A connector as in claim 5, wherein a second portion of the interior surface of said housing defines a frusto-conical interior volume and wherein said retainer urges the base portion of said contact cage into contact with the second portion of said interior surface.

7. A connector as in claim 5, wherein said base portion includes a plurality of resilient members joined to said support portion, in a spaced apart relationship so as to define said frusto-conical member.

8. A connector as in claim 1, further including a terminal body in electrical communication with said contact cage.

9. A connector as in claim 1, wherein said contact cage is comprised of a unitary body of a copper based alloy material.

10. A connector as in claim 1, wherein said housing is comprised of a non-ferrous alloy.

11. A female electrical connector comprising:

an electrically conductive housing configured as a generally cylindrical canister having an open end and a closed end, said housing including an interior surface having a first portion configured as a right cylinder and enclosing a right cylindrical interior volume, and a second portion configured as a frusto-conical surface and enclosing a frusto-conical interior volume;

a contact cage disposed within, and in electrical communication with, said housing, said contact cage including a right cylindrical contact portion, a frusto-conical base portion, and a right cylindrical support portion therebetween;

said contact portion including a plurality of resilient contact blades, each blade comprising a generally elongated member having a first end which is joined to the support portion of said contact cage;

said base portion comprising a plurality of resilient members joined to the support portion in a spaced apart relationship so as to define a frusto-conical surface corresponding generally to the second portion of said interior surface;

and, a retainer configured to fit into the frusto-conical volume of said interior surface and to urge the base portion of said contact cage into engagement with the second portion of said interior surface, said retainer including a central passageway therethrough, axially aligned with, and corresponding to, said right cylindrical interior volume.

12. A connector as in claim 11, further including an elastomeric o-ring seal supported in said housing by said retainer in axial alignment with said right cylindrical interior volume.

13. A connector as in claim 12, further including a washer which cooperates with said retainer to retain said o-ring seal in said housing.

14. A connector as in claim 13, wherein said housing includes at least one crimped-in portion which retains said washer therein.

15. A connector as in claim 11, wherein each blade of said contact cage includes a contact point defined thereupon, said contact points being disposed so as to extend radially into said cylindrical interior volume.

16. A connector as in claim 15, wherein the contact points on adjacent blades are longitudinally displaced relative to one another.