Electrical contact

• US 4,143,936 A
• Filed: 12/01/1977
• Issued: 03/13/1979
• Est. Priority Date: 12/01/1977
• Status: Expired due to Term

• Current Assignee: Amphenol Corporation
• Original Assignee: Bunker Ramo Corporation
• Inventors: Kaczmarek, Leonard, DeRoss, Robert
• Primary Examiner(s): McGlynn, Joseph H.
• Application Number:
  US05/856,428
• Time in Patent Office: 467 Days
• Field of Search: 339/95 R, 339/97 C, 339/276, 174/84C
• US Class Current: 439/881
• CPC Class Codes: H01R 4/183 for cylindrical elongated bodies, e.g. cables having circular cross-section H01R4/01 takes precedence

Abstract

An electrical contact adapted to be crimped onto an electrical conductor is disclosed. The contact comprises a body portion having an active contact element disposed at one end for connection to a complementary contact and a terminal element at the other end adapted to be fixedly connected to a conductor. The terminal contact element comprises a pair of spaced crimping arms disposed in a common plane and having opposite inside facing edges with beveled surfaces. The beveled surfaces provide a camming action during the crimping operation which permits the arms to pass one another and to completely encircle the conductor, while the arts remain in substantially the same plane, whereby the crimped arms provide a positive mechanical and electrical termination between the contact and the conductor. The bight of the terminal element disposed between the spaced arms defines an edge generally perpendicular to the inside edges of the arms such that the slot defined by the inside edges of the arms and the bight is generally rectangular whereby the connector may be crimped about electrical conductors of different cross sectional configurations and dimensions.

Claims

1. An electrical contact adapted to be crimped to an electrical conductor, said contact comprising

a body portion having an active contact element disposed at one end for engagement with a compatible contact and a terminal element at the other end adapted to be fixedly connected to a conductor,

said terminal element comprising a pair of spaced crimping arms disposed in a common plane, said arms including inside facing edges having beveled surfaces offset relative to one another such that upon crimping of said arms the beveled surfaces provide a camming action permitting said arms to pass one another to encapsulate the conductor while said arms remain in substantially the same plane, whereby the crimped arms provide a positive mechanical and electrical interconnection between the contact and the conductor.

2. The electrical contact set forth in claim 1, wherein said active contact element is generally flat and elongated to provide a spade-type contact for interconnection with said compatible contact.

3. The electrical contact set forth in claim 1, wherein said body portion includes means for securing said contact to an associated connector housing.

4. An electrical contact comprising:

an elongated body portion, an active contact element disposed at one end of said body portion for connection to a complementary contact and a terminal element at the other end of said body portion adapted to be fixedly connected to an electrical conductor,

said terminal element comprising a pair of spaced crimping arms disposed in a plane such that upon crimping said arms will be generally perpendicular to the axis of the conductor about which said arms are crimped, said arms including means for overlapping one another during crimping thereby to completely encapsulate the conductor, whereby the crimped arms provide a positive mechanical and electrical connection, said crimping arms including generally straight inside edges which terminate at a common bight edge generally perpendicular to the inside edges, the inside edges of said bight edge defining a generally rectangular slot whereby said contact may be crimped to electrical conductors of different cross sectional configurations and dimensions.

5. The electrical contact set forth in claim 4, wherein said bight edge is positioned between the base and distal portions of said arms to assure that said arms fold about the conductor adjacent to said bight edge.

6. The electrical contact set forth in claim 4, wherein the inside edges of each crimping arm include beveled surfaces to provide a camming action permitting the arms to pass one another and to encircle the conductor while remaining in substantially the same plane.

7. The electrical contact set forth in claim 6, wherein each said crimping arm has a planar dimension at its base which is less than its planar dimension along the mid portion thereof, to thereby initiate the crimping of said arms about the conductor at said bases with the conductor being held adjacent to said bight edge during and after crimping.

8. An electrical contact comprising:

a body portion having an active contact element for engagement with a complementary contact and a terminal element adapted for termination to an electrical conductor,

said terminal element comprising a pair of spaced crimping arms disposed in a common plane, each arm having an inside edge comprising a beveled surface to provide a camming action permitting said arms to pass one another during the crimping operation while said arms remain in substantially the same plane, each arm also having a dimension across the base thereof sufficient to prevent collapse of said arm at said base during the crimping operation but less than the dimension across the mid portion of said arm.

9. In an electrical contact having a terminal element adapted to be crimped to an electrical conductor, the improvement comprising:

said terminal element having two spaced crimping arms disposed in a common plane and defining a slot for receiving the conductor perpendicular to said plane, said arms each having a beveled inside edge which is offset relative to the edge of the other arm in a direction perpendicular to said plan to provide a camming action during the crimping operation to permit the arms to pass one another and to fold over and encapsulate the conductor while said arms remain in generally the same plane.

10. An electrical contact adapted to be crimped to an electrical conductor, said contact comprising

a body portion having an active contact element disposed at one end for engagement with a compatible contact and a terminal element at the other end adapted to be fixedly connected to a conductor,

said terminal element comprising a pair of spaced crimped arms disposed in a common plane, said arms including inside facing edges having beveled surfaces such that upon crimping of said arms the beveled surfaces provide a camming action permitting said arms to pass one another to encapsulate the conductor while said arms remain in substantially the same plane, whereby the crimped arms provide a positive mechanical and electrical interconnection between the contact and the conductor, each crimping arm having a planar dimension at a mid-portion thereof greater than the planar dimension at the base thereof.

11. The electrical contact set forth in claim 10, wherein said terminal element includes a bight portion disposed between said spaced crimping arms defining an edge generally perpendicular to the inside edges of said arms such that the slot defined by the inside edges of said crimping arms and said bight is generally rectangular.

12. The electrical contact set forth in claim 10, wherein said bight edge is positioned intermediate the base and the distal end of said arms to assure that said arms fold about the associated conductor substantially adjacent to said bight edge.

13. An electrical contact adapted to be crimped to an electrical conductor, said contact comprising

a body portion having an active contact element disposed at one end for engagement with a compatible contact and a terminal element at the other end adapted to be fixedly connected to a conductor,

said terminal element comprising a pair of spaced crimping arms disposed in a common plane, said arms including a bight portion disposed therebetween and inside facing edges having beveled surfaces such that upon crimping of said arms the beveled surfaces provide a camming action permitting said arms to pass one another to encapsulate the conductor while said arms remain in substantially the same plane, whereby the crimped arms provide a positive mechanical and electrical interconnection between the contact and the conductor, said crimping arms including outer peripheral edges of generally circular configuration whereby the planar dimension of each arm adjacent to its base is less than the planar dimension of each arm at a mid point thereof, to thereby initiate crimping of said arms about the conductor at said bases with the conductor being held adjacent to said bight edge during and after crimping.

14. The electrical contact set forth in claim 13, wherein the point of intersection between the circular peripheral edges and said body portion defines a neck region, and the inside edges of said arms terminate at a common bight edge positioned between said neck region and the distal end of said terminal element to assure that said arms fold about the associated conductor substantially adjacent to said bight edge.

15. An electrical contact comprising:

a body portion having an active contact element for engagement with a complementary contact and a terminal element adapted for termination to an electrical conductor,

said terminal element comprising a pair of spaced crimping arms disposed generally in a common plane such that upon crimping said arms will be generally perpendicular to the axis of a conductor about which the arms are crimped, each of said crimping arms having a planar dimension at its base less than the planar dimension of each arm at a mid point thereof to thereby initiate crimping of said arms about the conductor at said bases.

16. The electrical contact set forth in claim 15 including a common bight edge between said arms, said common bight being disposed intermediate the bases of said arms and distal ends of said arms, whereby said crimping of said arms about the connector at said bases is effective to hold the conductor adjacent to said common bight during and after crimping.