Connector for a plated or soldered hole

• US 5,259,767 A
• Filed: 07/10/1992
• Issued: 11/09/1993
• Est. Priority Date: 07/10/1992
• Status: Expired due to Term

• Current Assignee: Teledyne Technologies Incorporated
• Original Assignee: Teledyne Kinetics
• Inventors: Chitamitara, Apichart N., Kurbikoff, Peter A.
• Primary Examiner(s): Abrams, Neil
• Application Number:
  US07/911,774
• Time in Patent Office: 487 Days
• Field of Search: 439/59, 439/60, 439/62, 439/630, 439/636, 439/637, 439/876, 439/387
• US Class Current: 439/59
• CPC Class Codes: H01R 12/57 surface mounting terminals
• CPC Class Codes: H05K 3/325 by abutting or pinching, i.e. without alloying process; mechanical auxiliary parts therefor adaptations of leads inserted in holes for press-fit connections H05K3/308
• CPC Class Codes: H05K 3/42 Plated through-holes or plated via connections

Abstract

A connector for electrically connecting a plated or soldered through hole of a printed circuit board to another electrical device includes a plurality of conductors each having a deflection arm for maintaining a contact force on the circuit board and a dimple formed as a continuous surface from the deflection arm. Each dimple is sized and shaped to enter a through hole and to electrically contact the plating or solder material formed in the hole. Contact can be at a point within the hole or along the circumference of the hole. In addition, each dimple is sized and shaped to enter a range of through hole sizes. In a preferred embodiment each dimple is formed in a generally pyramidal shape with creased edges and a smooth apex. The dimple may also be formed in a generally conical shape.

Claims

1. A connector for electrically connecting a plated or soldered through hole of a circuit board to another electrical device, comprising:

a substrate;

a deflectable conductor attached to the substrate and cantilevered therefrom to maintain a positive contact force between said conductor and said circuit board; and

a dimple shaped with a plurality of edges and formed on the conductor shaped to extend into the through hole and to contact the plated or soldered material formed in and along the circumferential of the through hole to make an electrical contact, the conductor being engageable with the substrate to deflect the conductor and establish said positive contact force pressure and lock the dimple of the conductor to the through hole of the circuit board.

2. The connector as claimed in claim 1 and wherein the dimple is shaped to contact the plating or soldered material at at least one point within the through hole or along a circumferential of the through hole.

3. The connector as claimed in claim 1 and wherein the dimple has a generally pyramidal shape.

4. The connector as claimed in claim 3 and wherein the dimple has a generally conical shape.

5. The connector as claimed in claim 4 and wherein the dimple has a generally smooth and radiused apex portion.

6. The connector as claimed in claim 1 and wherein the dimple has a generally pyramidal shape with an octagonal shaped base portion.

7. The connector as claimed in claim 1 and wherein the connector includes an upper and a lower deflection arm shaped to contact the circuit board on opposite sides.

8. The pressure connector for connecting a plated or soldered through hole of a circuit board with an electrical element comprising:

a substrate;

a cantilevered conductor mounted on the substrate and formed with a deflection arm, the substrate being engageable with the circuit board for maintaining a positive contact force between the deflection arm and the circuit board; and

a dimple shaped with a plurality of edges and formed on the deflection arm extending a distance past a surface of the deflection arm as a continuous surface shaped to enter the through hole and contact the plated or soldered material at at least one point along an edge or circumference of the through hole.

9. The connector as claimed in claim 8 and wherein the dimple has a generally pyramidal shape and is sized and shaped to enter and contact a range of diameters of through holes.

10. The connector as claimed in claim 8 and wherein the simple has a generally conical shape and is sized and shaped to enter and contact a range of diameters of through holes.

11. The connector as claimed in claim 8 and wherein the dimple has a pyramidal shape and a polygonal shaped base portion and four edges.

12. The connector as claimed in claim 8 and wherein the dimple has a generally square base formed at the intersection with the deflection arm.

13. The connector as claimed in claim 8 and wherein the dimple has a generally octagonal shaped base formed at the intersection with the deflection arm.

14. The connector as claimed in claim 8 and wherein the dimple has a radiused and smooth apex portion.

15. The connector as claimed in claim 8 and wherein said connector further comprises a plurality of cantilevered conductors, said conductors extend from the substrate to contact opposite surfaces of the circuit board and maintain a normal clamping force of the connector to the circuit board.

16. A connector for connecting a soldered or plated through hole of a circuit board with an electrical device comprising:

a substrate including a plurality of cantilevered conductors each conductor being established as a deflection arm attached to the substrate; and

a dimple shaped with a plurality of edges and formed on each deflection arm, the dimple having a height and a base and continuously extending from the deflection arm with the dimple shaped to enter the through hole for electrical contact between the dimple and the plated or soldered material along an edge or circumference of the through hold upon engagement of the substrate with the circuit board.

17. The connector as claimed in claim 16 and wherein the dimple is generally pyramidal in shape for contacting the plated or soldered material.

18. The connector as claimed in claim 17 and wherein the dimple has a height of about 0.012".

19. The connector as claimed in claim 18 and wherein the pyramid has a generally square shaped base portion and four creased edges.

20. The connector as claimed in claim 19 and wherein each side of the base portion has a width of about 0.038".

21. The connector as claimed in claim 16 and wherein the dimple is generally conical in shape.