EP1028487A1 - Contact électrique avec connexion à visser - Google Patents

Contact électrique avec connexion à visser Download PDF

Info

Publication number
EP1028487A1
EP1028487A1 EP00102708A EP00102708A EP1028487A1 EP 1028487 A1 EP1028487 A1 EP 1028487A1 EP 00102708 A EP00102708 A EP 00102708A EP 00102708 A EP00102708 A EP 00102708A EP 1028487 A1 EP1028487 A1 EP 1028487A1
Authority
EP
European Patent Office
Prior art keywords
electrical contact
end portion
helix
electrical
wire nut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00102708A
Other languages
German (de)
English (en)
Inventor
Christopher G. Chadbourne
Gregory P. Norton
Urs F. Nager, Jr.
Richard J. Birch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anderson Interconnect Inc
Original Assignee
Anderson Interconnect Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anderson Interconnect Inc filed Critical Anderson Interconnect Inc
Publication of EP1028487A1 publication Critical patent/EP1028487A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/22—End caps, i.e. of insulating or conductive material for covering or maintaining connections between wires entering the cap from the same end

Definitions

  • the present invention relates to electrical contacts in general and, more particularly, to an electrical contact having a wire nut at one end thereof.
  • connection of one or more electrical conductors to electrical contacts is achieved through a variety of techniques including soldering, crimping, screw clamping and by "Chinese finger” mechanical grippers. Such techniques are time consuming and in the case of soldering or crimping are essentially non-reversible.
  • the electrical contact contains a wire nut end portion for mechanically and electrically engaging an electrical conductor.
  • the wire nut end portion is electrically connected to an electrical contact engaging end portion.
  • the wire nut end portion can transition directly into the electrical contact engaging end portion or there can be an intermediate portion between the two portions.
  • the wire nut end portion can be integrally formed in the contact or can be in the form of a helix inserted into a barrel on the electrical contact.
  • the invention is depicted in a number of embodiments.
  • the invention can be described as an electrical contact with a "wire nut" for electrical engagement with one or more electrical conductors.
  • Wire nuts are well known in the industry and utilize a helix coiled wire or equivalent to mechanically grip the conductor(s) together.
  • the helix coiled wire or equivalent can be uninsulated or more typically insulated with a surrounding insulative shell.
  • the present invention employs an uninsulated helix coiled wire and its equivalents to provide electrical connection with the other portion(s) of the electrical contact.
  • an electrical contact of the present invention indicated generally by the reference numeral 10.
  • the electrical contact 10 has three portions identified as an electrical contact engaging end portion 12, an intermediate portion 14 and a wire nut end portion 16.
  • FIG. 1 is a genderless contact in which a flat contact element 18 provides electrical contact with another such genderless contact when the contacts are positioned in a suitable housing such as those shown in one or more the above-identified U.S. Patents.
  • the electrical contact shown in Figure 1 is formed from a single piece of metal with a helix produced by a plurality of inwardly extending helix defining elements 20 that are stamped from the outside before rolling the piece to produce barrel 22.
  • Figure 2 is similar to Figure 1 except that helix 24 is formed by drilling a solid barrel 26 and then tapping the drilled barrel 26.
  • Figure 3 illustrates the use of a separable helix coiled wire 28 that is positioned within hollow barrel 30 for mechanical and electrical engagement therewith.
  • the helix coiled wire can be mechanically and electrically secured to the barrel 30 by brazing or by other means as shown in Figures 4, 5 and 6.
  • the electrical contact engaging end portion 12 has an arcuate contact element 32 for electrical contact with another such genderless contact when the contacts are positioned in a suitable housing such as those shown in one or more of the above-identified U.S. Patents.
  • Figure 4 depicts the use of a skive 34 to mechanically and electrically secure helix coiled wire 28 with respect to barrel 30.
  • Figures 5 and 6 illustrate the use of dimples 36 to mechanically and electrically secure the helix coiled wire with respect to barrel 30. These two Figures show the electrical contact engaging end portion 12 as a lug contact 38.
  • Figure 7 is similar to the electrical contact shown in Figure 1 except that the electrical contact engaging end portion 12 is a pin contact 40.
  • Figure 8 is a similar electrical contact with the electrical contact engaging end portion corresponding to the pin contact 40.
  • the helix 24 is formed by stamping the inside of the metal piece before rolling the piece to produce barrel 22 with the helix defining elements 42 located on the inside surface 44 of the barrel 22.
  • Figure 9 is similar to Figure 1, but with the electrical contact engaging end portion comprising a socket contact 46.
  • Figure 10 also is similar to Figure 1 but with the electrical contact engaging end portion comprising a lug contact 48.
  • Figure 11 is similar to Figure 2 with a drilled and tapped helix 24. However, the electrical contacting end portion is a lug contact 50.
  • Figures 12 through 19 illustrate other embodiments in which the intermediate portion 14 of the electrical contact 10 has been eliminated.
  • the electrical engaging end portion transitions directly into the wire nut end portion 16.
  • Figure 12 corresponds to Figure 2 without the intermediate portion 14.
  • Figure 13 corresponds to Figure 9 again without the intermediate portion 14.
  • Figure 14 is a view in section of Figure 13 showing the inwardly extending stamped helix defining elements 20.
  • Figure 15 corresponds to Figure 8 without the intermediate portion 14.
  • Figure 16 illustrates the socket contact 52 version of the pin contact illustrated in Figure 15.
  • Figure 17 depicts for purposes of illustration a generic pin/socket contact embodiment in which the helix 24 has one or more discontinuities 54. These discontinuities minimize the loosening of contact with a conductor once sufficient torque has been applied to a helix/conductor interface.
  • Figures 18 and 19 depict the separate helix coiled wire 28 in conjunction with a pin contact 56 ( Figure 18) and a socket contact 58 ( Figure 19). In each case, the electrical contact engaging end portion 12 transitions directly into the wire nut end portion 16.
  • the socket contact version of Figure 19 includes by way of illustration an electrically insulative shield 60 surrounding at least part of the wire nut portion. It will be appreciated that the shield 60 can surround the entire outer surface of barrel 22 and that this shield can be employed with any of the embodiments shown in Figures 1-18 above and Figure 20 discussed below.
  • Figure 20 combines the wire nut end portion of Figure 1 with the electrical contact engaging end portion of Figure 4 and with the addition of an integral formed spring portion 62.
  • the integrally formed spring portion 62 of electrical contact 64 can be employed in conjunction with a crimp contact end portion 66 and integrally formed with stop 68 as shown in Figure 21.
  • Electrical contact 64 can be inserted into a POWERPOLE housing 70 (e.g. see U.S. Patent No. 3,259,870) as shown in Figure 22 or an SB housing 72 (e.g. see U.S. Patent No. 3,909,099) as shown in Figure 23.
  • POWERPOLE housing 70 e.g. see U.S. Patent No. 3,259,870
  • SB housing 72 e.g. see U.S. Patent No. 3,909,099
  • Figure 26 depicts a wire splice formed from a longitudinally extending electrically conductive tube 74 and two helix coiled wires 76 and 78 that are mechanically and electrically secured within tube 74 by brazing, welding or deformation of tube e.g. by dimples (see Figures 5 and 6).
  • an electrically insulative shield 80 surrounds tube 74.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Multi-Conductor Connections (AREA)
EP00102708A 1999-02-12 2000-02-09 Contact électrique avec connexion à visser Withdrawn EP1028487A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US248761 1994-05-25
US24876199A 1999-02-12 1999-02-12

Publications (1)

Publication Number Publication Date
EP1028487A1 true EP1028487A1 (fr) 2000-08-16

Family

ID=22940566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00102708A Withdrawn EP1028487A1 (fr) 1999-02-12 2000-02-09 Contact électrique avec connexion à visser

Country Status (5)

Country Link
EP (1) EP1028487A1 (fr)
JP (1) JP2000277191A (fr)
KR (1) KR20000076646A (fr)
AU (1) AU1529800A (fr)
BR (1) BR0000373A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9017112B1 (en) 2014-02-11 2015-04-28 Keith Knowles Electrical wire nut with detachable break-off connectors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011584A1 (fr) * 1991-12-05 1993-06-10 Raychem S.A. Connecteur electrique
WO1993017467A1 (fr) * 1992-02-20 1993-09-02 Raychem S.A. Connecteur electrique
US5531618A (en) * 1989-05-30 1996-07-02 Market; Roger A. Apparatus and method of connecting and terminating electrical conductors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5531618A (en) * 1989-05-30 1996-07-02 Market; Roger A. Apparatus and method of connecting and terminating electrical conductors
WO1993011584A1 (fr) * 1991-12-05 1993-06-10 Raychem S.A. Connecteur electrique
WO1993017467A1 (fr) * 1992-02-20 1993-09-02 Raychem S.A. Connecteur electrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9017112B1 (en) 2014-02-11 2015-04-28 Keith Knowles Electrical wire nut with detachable break-off connectors

Also Published As

Publication number Publication date
KR20000076646A (ko) 2000-12-26
BR0000373A (pt) 2001-10-09
AU1529800A (en) 2000-08-17
JP2000277191A (ja) 2000-10-06

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