Sealed stamped and formed pin

• US 4,998,896 A
• Filed: 09/25/1989
• Issued: 03/12/1991
• Est. Priority Date: 09/25/1989
• Status: Expired due to Term

• Current Assignee: AMP Incorporated (Johnson Controls International plc)
• Original Assignee: AMP Incorporated (Johnson Controls International plc)
• Inventors: Lundergan, Robert G.
• Primary Examiner(s): PIRLOT, DAVID
• Application Number:
  US07/411,961
• Time in Patent Office: 533 Days
• Field of Search: 439/271-283, 439/586, 439/587, 439/593, 439/595, 439/597, 439/599, 439/600, 439/695, 439/701, 439/692-694, 439/851-858
• US Class Current: 439/595
• CPC Class Codes: H01R 13/05 Resilient pins or blades carrying separate resilient parts H01R13/15
• CPC Class Codes: H01R 13/424 Securing in base or case composed of a plurality of insulating parts having at least one resilient insulating part
• CPC Class Codes: H01R 13/4365 comprising a temporary and a final locking position
• CPC Class Codes: H01R 13/443 Dummy plugs
• CPC Class Codes: H01R 13/5208 having at least two cable receiving openings

Abstract

A sealed electrical connector assembly (2) used to interconnect wires (4) with a printed circuit board comprises a receptacle connector (6) matable with a pin header (8). The receptacle connector (6) includes a secondary lock (60) located on the mating face of an insulative housing (30). Integral latches 50 are received within correspondingly shaped pocket (62) in the secondary lock. A conductor seal cap includes a plurality of projections which can be selectively removed. Remaining projections seal individual seal cavities. A stamped and formed pin is used in the pin header. An integral plug is used to seal the leak path on the interior of the stamped and formed cylindrical pins.

Claims

1. A pin for use as an electrical terminal, the pin being stamped and formed from a metal blank into a tubular shape said blank being provided with a depression on an interior surface of a predetermined width;

a plug being partially sheared from and remaining joined to the blank by an integral tail, the contour of the plug having substantially the same shape as the inner surface of the tubular pin, the tail being bent with the plug being formed up so that the blank is formed and crimped around the plug with an edge thereof being received in said depression and with the interior of the pin being closed off by the plug.

2. The pin of claim 1 wherein the pin has a tapered nose.

3. The pin of claim 1 wherein the outer contour of the plug comprises a circular portion joined to the integral tail, the circumference of the circular portion being initially greater than the width of the inner surface of the blank on opposite sides of the plug, the blank being crimped around the plug into a closed tubular shape deforming the plug so that a metal to metal seal is formed between the plug and the tubular pin on the inner surface thereof.

4. The pin of claim 1 wherein the width of the tail is less than the inner dimension of the inner surface of the tubular pin.

5. The pin of claim 4 wherein edges of the tail are joined to the outer contour of the plug by concave radiused surfaces.

6. The pin of claim 1 wherein the metal blank has a first section and a wider second section, first and and second tubular sections being formed when the blank is formed into a tubular shape, the outer diameter of the second tubular section being larger than the outer diameter of the first tubular section.

7. The pin of claim 6 wherein the plug is located in the second tubular section.

8. The pin of claim 7 wherein the pin includes a third section, the third section comprising a channel, open on one side, extending between the second section and an end of the pin.

9. A sealed electrical connector assembly comprising:

two electrical connectors;

electrical conductors in each connector, the electrical conductors in one of the connectors comprising first members, said members being stamped and cylindrically formed from a blank and having a depression on an interior surface;

interfacial sealing means at the mating interface between the two connectors; and

individual conductor sealing means in each connector, the individual conductor sealing means for the first members comprising a plug stamped from said blank and crimped within each first member and with an edge of said plug being received in said depression.

10. The sealed electrical connector assembly of claim 9 wherein the first stamped and cylindrically formed members comprise cylindrical pins.

11. The sealed electrical connector assembly of claim 10 wherein an interference fit is formed between the cylindrical pins and the insulative housing of one of the connectors to form a seal around the exterior of the pins.

12. The sealed electrical connector assembly of claim 10 wherein the electrical connector containing the pins comprises a pin header.

13. The sealed electrical connector assembly of claim 12 wherein the other electrical connector comprises a receptacle connector and the conductors therein comprise terminals attached to wires.

14. The sealed electrical connector assembly of claim 13 wherein the conductor sealing means in the other connector comprises an elastomeric seal surrounding the wires.

15. The sealed electrical connector assembly of claim 14 wherein the elastomeric seal is secured in the other connector by a cap.

16. The sealed electrical connector assembly of claim 15 wherein the elastomeric seal comprises a single member having a plurality of holes, each hole receiving one wire, the cap having projections received within any hole in the elastomeric seal through which a wire is omitted.