EP0694991A1 - Contact électrique à double matériau - Google Patents

Contact électrique à double matériau Download PDF

Info

Publication number
EP0694991A1
EP0694991A1 EP95111774A EP95111774A EP0694991A1 EP 0694991 A1 EP0694991 A1 EP 0694991A1 EP 95111774 A EP95111774 A EP 95111774A EP 95111774 A EP95111774 A EP 95111774A EP 0694991 A1 EP0694991 A1 EP 0694991A1
Authority
EP
European Patent Office
Prior art keywords
contact
terminal
section
attachment portion
connection
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Withdrawn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
EP95111774A
Other languages
German (de)
English (en)
Inventor
Bernhard Egenolf
Jochen Horn
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.)
Whitaker LLC
Original Assignee
Whitaker LLC
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 Whitaker LLC filed Critical Whitaker LLC
Publication of EP0694991A1 publication Critical patent/EP0694991A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2464—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • 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
    • H01R4/185—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 combined with a U-shaped insulation-receiving portion

Definitions

  • This invention relates to an electrical terminal comprising a spring beam contact portion and a wire connection portion that are separate parts assembled together, each part having a different material or material that is differently processed.
  • the outer back-up spring typically also provides the function of locking the terminal within a connector housing by providing resilient locking lances.
  • the inner contact body must be suited to good electrical contact with a wire to be crimped to, most metals for this function being relatively ductile and having insufficient spring properties, in particular when subject to heat and mechanical solicitation over time.
  • the outer back-up spring ensures that a certain contact force is provided over the life of the contact, whereby this spring material (e.g.
  • the inner contact body material cannot be chosen optimally for crimping, but rather is a compromise between spring and crimping properties, as the inner contact body must also have sufficient spring force for contacting a mating terminal the back-up Spring only providing spring assistance.
  • an electrical terminal having a resilient contact section for resiliently contacting a complementary mating terminal, and a wire connection portion for electrical connection to a conducting wire, characterized in that the contact portion is made out of a first resilient material, and the connection section is made of a second material adapted for connection to a conducting wire.
  • connection and contact sections may be mechanically and electrically held together by welding or by interference fit as described in certain embodiments of this invention.
  • the contact and connection sections can, in a first embodiment, be made from different metals having the required spring and crimping properties respectively, or in a second embodiment the metal could be the same but having a different temper such that the spring properties of the contact and connection sections are different.
  • an electrical terminal 2 comprising a resilient contact section 4 and a wire connection section 6.
  • the wire connection section 6 comprise- a crimping barrel 8 for crimping to bared conducting strands of a conducting wire, and strain relief crimp arms 10 for wrapping around the outer insulation of the conducting wire for retention thereto.
  • the wire connection section 6 further comprises a base portion 12 extending from the crimping barrel 8 towards the contact section 4 into an attachment portion 14 for mechanical and electrical connection to the contact section 4.
  • the contact section 4 comprises a complementary attachment portion 16 for mechanical and electrical interconnection to the crimp barrel attachment portion 14, the attachment portion 16 extending through a U-bend 18 to side walls 28 of a contact body section 20.
  • the contact body section 20 has resilient locking lances 22 stamped therefrom, and a resilient contact section 24 extending axially therefrom.
  • the contact portion 24 comprises a pair of resilient opposed cantilever beams 26 for resiliently receiving a mating tab contact therebetween.
  • the contact section attachment portion 16 extends from side walls 28 of the contact body 20, and are folded into the contact body and formed into opposing arcuate profiles as best seen in Fig. 3 .
  • the connection section attachment portion 14 is formed into a cylinder with a seam 30 resulting from the folding together of the sheet metal into the cylindrical shape.
  • the attachment portion 14 cooperates with the resiliency of the attachment portion 16, whilst nevertheless being relatively stiff such that the attachment portion 14 can be inserted between arcuate walls 29 of the attachment portion 16 in a resilient interference fit.
  • the strength of the interference fit can be increased by extending the walls 29 of the attachment portion 16 within the contact body such that they are supported against an inner face 32 of the contact body side walls 28, as shown by the extension 31.
  • the contact section and connection sections can thus be assembled together in a simple manner by merely inserting the connection section attachment portion 14 into the contact section attachment portion 16.
  • connection section 6 thus allows the connection section 6 to be made of a different material from the contact section 4 whilst nevertheless avoiding positioning of an outer back-up spring around the contact section 4 for increasing the contact pressure of the contact spring arms 26.
  • the contact section 4 can be chosen from a spring material that is resistant to thermal and mechanical solicitation of the contact.
  • the resiliency of the contact section material is also beneficial for the locking lances 22 as it will thus have higher strength than if made from the connection section material.
  • the connection section 6 material is chosen to have a relatively high ductility such that the crimping barrel 8 can be easily plastically deformed around conducting strands of the conducting wire, this plastic deformation allowing not only good electrical connection with the strands, but also reducing wear of the crimping tool.
  • the material of the contact and connection sections can either be different materials with possibly different thicknesses, or they could be of the same metal but having been processed differently: for example the contact section material could have a different temper giving it a higher resiliency than the connection section
  • FIG. 4 another embodiment of this invention is shown whereby the attachment portion 14' of the connection section 6' is inserted directly contiguous the inner surface 32' of the contact body 20' of the contact section 4'.
  • the attachment section 14' has a box-shaped cross-sectional profile complementary to the box-shaped inner periphery 32' of the contact body 20'.
  • the contact and connection sections 4', 6' are welded together with laser welds 40 therebetween, for a very rigid mechanical interconnection, but also electrical interconnection between the contact and connection sections.
  • the crimping barrel material can be chosen more optimally than in the case of conventional contacts, whereby the contact section material can be chosen to have optimal spring qualities such that an outer back-up spring is not required thus producing a terminal with very high contact force whilst nevertheless very good crimping properties. Additionally, the latter causes reduced wear of the crimping tools.
  • This invention is also more compact than conventional terminals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP95111774A 1994-07-27 1995-07-26 Contact électrique à double matériau Withdrawn EP0694991A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9415160 1994-07-27
GB9415160A GB9415160D0 (en) 1994-07-27 1994-07-27 Dual material electrical contact

Publications (1)

Publication Number Publication Date
EP0694991A1 true EP0694991A1 (fr) 1996-01-31

Family

ID=10758966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111774A Withdrawn EP0694991A1 (fr) 1994-07-27 1995-07-26 Contact électrique à double matériau

Country Status (4)

Country Link
EP (1) EP0694991A1 (fr)
JP (1) JPH0864286A (fr)
KR (1) KR960006150A (fr)
GB (1) GB9415160D0 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10163228A1 (de) * 2001-12-21 2003-07-17 Volkswagen Ag Elektrischer Steckkontakt
EP1548891A1 (fr) * 2003-12-22 2005-06-29 Delphi Technologies, Inc. Borne de raccordement électrique
EP1744406A1 (fr) * 2005-07-12 2007-01-17 Robert Bosch Gmbh Contact à douille pour connecter électriquement à un contact supplémentaire et un connecteur ayant un tel contact

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4977768B2 (ja) * 2010-03-12 2012-07-18 矢崎総業株式会社 複数種の端子金具の製造方法
JP4856256B2 (ja) * 2010-03-18 2012-01-18 矢崎総業株式会社 端子金具の製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2030794A (en) * 1978-09-27 1980-04-10 Gen Motors Corp Two-piece socket terminal
EP0127195A1 (fr) * 1981-06-25 1984-12-05 AMP INCORPORATED (a New Jersey corporation) Cosse pour languette électrique
EP0552741A2 (fr) * 1992-01-22 1993-07-28 The Whitaker Corporation Contact électrique, ainsi que matériel et procédé pour sa fabrication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2030794A (en) * 1978-09-27 1980-04-10 Gen Motors Corp Two-piece socket terminal
EP0127195A1 (fr) * 1981-06-25 1984-12-05 AMP INCORPORATED (a New Jersey corporation) Cosse pour languette électrique
EP0552741A2 (fr) * 1992-01-22 1993-07-28 The Whitaker Corporation Contact électrique, ainsi que matériel et procédé pour sa fabrication

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10163228A1 (de) * 2001-12-21 2003-07-17 Volkswagen Ag Elektrischer Steckkontakt
EP1548891A1 (fr) * 2003-12-22 2005-06-29 Delphi Technologies, Inc. Borne de raccordement électrique
US7261604B2 (en) 2003-12-22 2007-08-28 Delphi Technologies, Inc. Electrical terminal element
EP1744406A1 (fr) * 2005-07-12 2007-01-17 Robert Bosch Gmbh Contact à douille pour connecter électriquement à un contact supplémentaire et un connecteur ayant un tel contact

Also Published As

Publication number Publication date
JPH0864286A (ja) 1996-03-08
GB9415160D0 (en) 1994-09-14
KR960006150A (ko) 1996-02-23

Similar Documents

Publication Publication Date Title
US5147230A (en) Two piece electrical female terminal
US7121892B2 (en) Electrical connector contact
EP0727842B1 (fr) Borne de puce manobloc
JP5329100B2 (ja) 電線付きコネクタ端子が挿入されたコネクタ
US4932906A (en) Electrical contact terminal
CA2009086C (fr) Contact electrique
EP0635904B1 (fr) Borne électrique pour utilisation avec contacts à ressort de court circuitage
JP3287908B2 (ja) ソケット型電気端子
EP0687033A2 (fr) Borne de prise de courants forts
EP0952631A2 (fr) Elément de contact mâle
AU708118B2 (en) Connection structure and method for electric wire and terminal
EP2147480B1 (fr) Connecteur électrique mâle
US11489277B2 (en) Electrical connector and method of making an electrical connector
EP0694991A1 (fr) Contact électrique à double matériau
EP0762551B1 (fr) Borne électrique ayant une languette de verrouillage
EP1089387A2 (fr) Borne électrique femelle modulaire
EP0568927A1 (fr) Douille terminale électrique
US3818424A (en) Electrical contact socket having improved contact spring
EP0373675A1 (fr) Borne de contact électrique
EP0755096B1 (fr) Borne métallique femelle et procédé de fabrication
WO2024024769A1 (fr) Raccord métallique de borne
JP2001229988A (ja) 圧接端子
JP2000508828A (ja) 電気プラグコネクタの連結部分
CN110752451A (zh) 端子金属配件和端子附接电线
JP3518180B2 (ja) 雄側端子金具及びその製造方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19960801