EP2045879A1 - Elektrisches Endgerät - Google Patents

Elektrisches Endgerät Download PDF

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Publication number
EP2045879A1
EP2045879A1 EP08001352A EP08001352A EP2045879A1 EP 2045879 A1 EP2045879 A1 EP 2045879A1 EP 08001352 A EP08001352 A EP 08001352A EP 08001352 A EP08001352 A EP 08001352A EP 2045879 A1 EP2045879 A1 EP 2045879A1
Authority
EP
European Patent Office
Prior art keywords
terminal
electrical terminal
accordance
arm
spring
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Withdrawn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
EP08001352A
Other languages
English (en)
French (fr)
Inventor
Eduard Cvasa
Gregor Frimmersdorf
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies 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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP2045879A1 publication Critical patent/EP2045879A1/de
Withdrawn legal-status Critical Current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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/188—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping having an uneven wire-receiving surface to improve the contact

Definitions

  • the present invention relates to an electrical terminal having a crimp portion for a crimp connection to an electrical conductor.
  • an electrical terminal with a crimp portion.
  • the shape of the crimp portion for connection to an aluminium electrical conductor is the same shape as for connection to a copper wire.
  • a two stage crimp process is used, with different compression or force rates, in order to assure base crimp resistance stability.
  • aluminium shows a low tensile strength, and that aluminium is also subject to creepage.
  • An electrical terminal in accordance with the present invention comprises a terminal portion; a crimp portion integral with the terminal portion; and a spring element integral with the terminal portion and/or the crimp portion and having a spring arm within the crimp portion.
  • the present invention provides an integral spring element in the crimp portion of the terminal to assure a substantially permanent and constant pressure on an electrical conductor when crimped in the crimp portion.
  • the terminal portion and the crimp portion have a longitudinal axis and the spring arm extends substantially parallel to the longitudinal axis to increase the effectiveness of the spring arm.
  • the spring element may take any suitable form.
  • the spring element is substantially U-shaped, is stamped from the terminal material, and/or is bent such that the central member of the U-shape defines the spring arm.
  • the spring element is substantially L-shaped, is stamped from the terminal material, and/or is bent such that one of the arms of the L-shape defines the spring arm.
  • the terminal preferably has a pair of spring elements, with the spring arms of each spring element positioned on opposed sides of the crimp portion.
  • the spring arm of the or each spring element preferably has a curved, convex or sinusoidal shape. Additionally, the spring arm may have a serrated surface.
  • the shape of the spring arm assists in providing a substantially constant force on the crimped conductor irrespective of any spring back proprieties or thermal relaxation of the crimp portion.
  • the spring element assists in maintaining a substantially constant crimp force irrespective on any creepage proprieties of the aluminium conductor.
  • a serrated surface on the spring arm assists in cracking any oxide layer on the aluminium conductor for an improved electrical connection between the terminal and the conductor.
  • the first embodiment of electrical terminal 10 includes a terminal portion 12, a crimp portion 14, and a pair of spring elements 16.
  • the terminal 10 is stamped and bent from sheet metallic material to integrally form the terminal portion 12, crimp portion 14 and spring elements 16.
  • the terminal portion 12 is shown as a blade terminal, but it will be appreciated that the terminal portion may take any other suitable form.
  • the crimp portion 14 may take any suitable form.
  • the terminal portion 12 and the crimp portion 14 have (or define) a longitudinal axis A.
  • the crimp portion 14 preferably is an open crimp barrel, and preferably includes one or more cut-outs 26.
  • the barrel has a body 28 of semicircular cross-section and a pair of crimp wings 30 extending from the body 28.
  • each spring element 16 is substantially U-shaped.
  • the outer arms 18 of each U-shaped spring element 16 lie alongside the longitudinally spaced edges 20 of the crimp portion 14.
  • the central arm 22 of each U-shaped spring element 16 extends between the outer arms 18 and defines the spring arm of each spring element.
  • the spring arm 22 of each spring element 16 extends substantially parallel to the longitudinal axis A and lies within the crimp portion 14.
  • the spring arms 22 lie on opposed sides of the crimp portion 14, and preferably lie adjacent to the crimp wings.
  • the spring arm 22 of each spring element 16 is preferably curved (or convex) in shape, and preferably includes serrations 24 in its surface.
  • Each outer arm 18 is a folded sheet portion which is obtained during manufacture of the electrical terminal 10 when bending the corresponding central arm 22.
  • the second embodiment of electrical terminal 100 includes a terminal portion 112, a crimp portion 114, and a pair of spring elements 116.
  • the terminal 100 is stamped and bent from sheet metallic material to integrally form the terminal portion 112, crimp portion 114 and spring elements 116.
  • the terminal portion 112 is shown as a blade terminal, but it will be appreciated that the terminal portion may take any other suitable form.
  • the crimp portion 114 may take any suitable form.
  • the terminal portion 112 and the crimp portion 114 have (or define) a longitudinal axis A.
  • the crimp portion 114 preferably is an open crimp barrel, and preferably includes one or more cut-outs 126.
  • the barrel has a body 128 of semicircular cross-section and a pair of crimp wings 130 extending from the body 128.
  • each spring element 116 is substantially L-shaped.
  • One arm 118 of each L-shaped spring element 116 lies alongside one of the longitudinally spaced edges 120 of the crimp portion 114.
  • the other arm 122 of each L-shaped spring element 116 extends through the crimp portion 114 and defines the spring arm of each spring element.
  • the spring arm 122 of each spring element 116 extends substantially parallel to the longitudinal axis A and lies within the crimp portion 114.
  • the spring arms 122 lie on opposed sides of the crimp portion 114, and preferably lie adjacent to the crimp wings.
  • the spring arm 122 of each spring element 116 is preferably curved (or convex) in shape, and preferably includes serrations 124 in its surface.
  • each L-shaped spring element 116 is positioned adjacent the inner longitudinal edges 120 of the crimp portion 114.
  • the one arm 118 of one or both L-shaped spring element 116 may be positioned alongside the outer longitudinal edge of the crimp portion 114.
  • Each one arm 118 is a folded sheet portion which is obtained during manufacture of the electrical terminal 100 when bending the corresponding other arm 122.
  • each of the described embodiments includes two spring elements 16, 116, one of the spring elements may be omitted in accordance with the present invention.
  • each spring element 16, 116 On crimping the crimp portion 14, 114 to an electrical conductor (not shown) the spring arm 22, 122 of each spring element 16, 116 is pressed against the electrical conductor.
  • This arrangement provides the advantages of assuring a substantially permanent and constant pressure on the electrical conductor when crimped in the crimp portion 16, 116, and compensating for any spring-back of the crimp portion, thermal relaxation, and creepage (if crimped to an aluminium conductor).

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP08001352A 2007-10-05 2008-01-24 Elektrisches Endgerät Withdrawn EP2045879A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0719487A GB0719487D0 (en) 2007-10-05 2007-10-05 Electrical terminal

Publications (1)

Publication Number Publication Date
EP2045879A1 true EP2045879A1 (de) 2009-04-08

Family

ID=38739192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08001352A Withdrawn EP2045879A1 (de) 2007-10-05 2008-01-24 Elektrisches Endgerät

Country Status (2)

Country Link
EP (1) EP2045879A1 (de)
GB (1) GB0719487D0 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015224219A1 (de) * 2015-12-03 2017-06-08 Te Connectivity Germany Gmbh Crimpkontakt mit verbesserter Kontaktierung und Crimpverbindung
JP2021096945A (ja) * 2019-12-17 2021-06-24 株式会社オートネットワーク技術研究所 圧着端子、及び端子付き電線

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783447A (en) * 1956-03-15 1957-02-26 Aircraft Marine Prod Inc Electrical connector
US4229063A (en) * 1975-06-24 1980-10-21 Yazaki Corporation Pressure terminal for use with aluminum wire
FR2858118A1 (fr) 2003-07-25 2005-01-28 Framatome Connectors Int Contact electrique a sertir

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783447A (en) * 1956-03-15 1957-02-26 Aircraft Marine Prod Inc Electrical connector
US4229063A (en) * 1975-06-24 1980-10-21 Yazaki Corporation Pressure terminal for use with aluminum wire
FR2858118A1 (fr) 2003-07-25 2005-01-28 Framatome Connectors Int Contact electrique a sertir

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015224219A1 (de) * 2015-12-03 2017-06-08 Te Connectivity Germany Gmbh Crimpkontakt mit verbesserter Kontaktierung und Crimpverbindung
EP3179560A1 (de) * 2015-12-03 2017-06-14 TE Connectivity Germany GmbH Crimpkontakt mit verbesserter kontaktierung und crimpverbindung
CN106981729A (zh) * 2015-12-03 2017-07-25 泰连德国有限公司 具有改善的接触和压接连接的压接触头
US9853366B2 (en) 2015-12-03 2017-12-26 Te Connectivity Germany Gmbh Crimp contact with improved contacting and crimp connection
JP2021096945A (ja) * 2019-12-17 2021-06-24 株式会社オートネットワーク技術研究所 圧着端子、及び端子付き電線
WO2021124949A1 (ja) * 2019-12-17 2021-06-24 株式会社オートネットワーク技術研究所 圧着端子、及び端子付き電線
CN114788093A (zh) * 2019-12-17 2022-07-22 株式会社自动网络技术研究所 压接端子及带端子电线
CN114788093B (zh) * 2019-12-17 2024-04-19 株式会社自动网络技术研究所 压接端子及带端子电线

Also Published As

Publication number Publication date
GB0719487D0 (en) 2007-11-14

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