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WO2011077190A1 - Contact électrique - Google Patents

Contact électrique Download PDF

Info

Publication number
WO2011077190A1
WO2011077190A1 PCT/IB2009/056052 IB2009056052W WO2011077190A1 WO 2011077190 A1 WO2011077190 A1 WO 2011077190A1 IB 2009056052 W IB2009056052 W IB 2009056052W WO 2011077190 A1 WO2011077190 A1 WO 2011077190A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
spring element
power
contact terminal
power contact
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.)
Ceased
Application number
PCT/IB2009/056052
Other languages
English (en)
Inventor
Peter Nuetzel
Sylvia Weiss
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 Connection Systems Holding France SAS
Original Assignee
FCI Automotive Holding SAS
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 FCI Automotive Holding SAS filed Critical FCI Automotive Holding SAS
Priority to EP09807721.7A priority Critical patent/EP2517310B1/fr
Priority to CN200980163321.0A priority patent/CN102714369B/zh
Priority to PCT/IB2009/056052 priority patent/WO2011077190A1/fr
Publication of WO2011077190A1 publication Critical patent/WO2011077190A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/18—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with the spring member surrounding the socket
    • 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
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the invention relates to power contacts designed to transmit high electrical powers by conducting electrical currents in the range of tens and up to hundreds of Amperes as they are needed e.g. in the field of electrical or hybrid vehicles.
  • Power contacts as used e.g. in automotive applications commonly comprise a contact terminal made from a piece of sheet metal (in this application, the sheet metal may be of copper alloy, aluminum, or any other appropriate conductive material), which is stamped and bent into a desired shape.
  • the contact terminal On one end the contact terminal is usually provided with holding or crimping means for the attachment of a cable or a wire.
  • the opposite end of the contact terminal is the actual contact portion and is usually provided with a pin reception member in the case of a female contact or a contact pin in the case of a male contact.
  • the contact portion may also be at least partially covered by an additional and separate spring element to support the contact portion and improve the electrical and mechanical contact.
  • the above described parts are examples of the commonly used contacts e.g. in signal transmission or general electrical applications. They are not suitable to be used for high power applications.
  • cables of large cross section are required which are not very flexible. Therefore bending or twisting of those cables transmits large torques on the order to the power connector, bending and destroying the latching elements as they are described in the prior art documents.
  • the multiple use of similar latching elements as described in the prior art documents to achieve a higher resistance against torques should be avoided in the case of high power applications.
  • the power contact would need to comprise additional holes for latching the additional latching elements. These additional holes would be a disadvantage for the conduction of large electrical currents.
  • One of the subjects of the invention is to provide a new power contact comprising a contact terminal and a spring element. It is a further object of the invention to provide a power contact to be used to conduct currents in the range of hundreds of Amperes and which allows the use of voltages in the Kilovolt range. Further it is an object of the invention to achieve all the above advantages with an inexpensive product, which preferably can be made from only two pieces of sheet metal mountable without any additional separate holding elements or welding operations to function properly.
  • a new power contact comprising a contact terminal and an essentially cylindrical spring element.
  • the contact terminal comprises a connection portion and a contact portion, where the connection portion serves for power connection, i.e. it is for example equipped with holding or preferably crimping means for the attachment of a power cable.
  • the contact portion is adapted for the reception of a preferably round contact pin.
  • the electrical contact between a pin surface and the contact portion is preferably established by means of a circular assembly of contact spring arms (see below for explanation).
  • the essentially cylindrical spring element is mountable on the contact terminal in an essentially coaxial fashion and preferably surrounds most part of the contact portion.
  • the spring element comprises at least one locking tongue which in the pre- ferred embodiment is an essentially rectangular part bent inwards into a plane approximately perpendicular to the cylinder's longitudinal axis.
  • the contact terminal comprises at least one stop edge which together with the the spring element's locking tongue blocks the relative rotation of the contact terminal and the spring element with respect to each other at least in one direction around their common axis.
  • the special shape of the locking tongue is of minor importance; its main purpose is to fit to the stop edge so that the relative rotation is blocked.
  • the contact terminal's stop edge is part of a stopping clearance which can be a rectangular clearance cut out for example of one end of the contact portion, in which the locking tongue fits to block the relative rotation of the two members in both directions.
  • the stronger locking mechanism according to the invention hinders the relative rotation of the two members of the power contact against torsion forces.
  • cylindrical is not in the strict mathematical sense, but refers to the more or less round shape which results from bending a stamped piece of sheet metal.
  • the two halves of a piece of sheet metal are bent forming an essentially cylindrical tube with two open ends.
  • the electrical contact between the power contact and the correctly inserted contact pin is established by means of a preferably circular arrangement of contact spring arms.
  • These contact spring arms are preferably oriented essentially parallel to the power contact's longitudinal axis and preferably comprise an inwardly extending bulge to provide a well-defined contact point improving the electrical and mechanical connection with the contact pin's surface.
  • This arrangement preferably extends for example from a cylindrical support portion.
  • the spring element further comprises a stopping latch which in assembled condition is situated between two of the contact spring arms further hampering the relative rotation of the contact terminal and the spring element with respect to each other around their common longitudinal axis.
  • the support portion further comprises a locking corner between neighboring contact spring arms which together with the stopping latch of the spring element blocks the relative linear motion of the two members at least in one direction parallel to the longitudinal axis of the power contact.
  • the contact terminal further comprises an essentially half-cylindrical or half-conical intermediate portion between the connection portion and the contact portion and the spring element preferably comprises further at least one stopping lug which for example can be cut out of the spring element following its curvature. In mounted condition this stopping lug is adapted to be bent around one of the edges of the intermediate portion of the contact terminal.
  • the power contact is preferably adapted to be mounted in a connector housing. Therefore the spring element comprises a locking means to fix the position of the assembled power contact when it is inserted in the connector housing. Therefore, in the preferred embodiment the spring element comprises at least one latching wing adapted to snap behind a ledge of the housing when the power contact is mounted, blocking a movement of the power contact with respect to the housing preferably in the direction opposed to the insertion direction.
  • the latching wing can for example be cut out of the spring element applying essentially a u-shaped cut, the two ends of the u facing in the insertion direction. Thus, the latching wing is bent outwards, and its free end faces the direction opposing the insertion direction.
  • the spring element preferably comprises at least one second stop member adapted to interact with a stop shoulder inside of the housing limiting the linear movement of the power contact in the insertion direction; the stop member is also cut from the spring element and bent outwards but such that at least one of its edges opposes the insertion direction. Thereby these two stop members form an arrestor fixing the position of the power contact when it is mounted inside the housing.
  • the end of the spring element which is adapted to receive the contact pin comprises a plurality of tongues extending essentially parallel to the power contact's longitudinal axis and arranged essentially circular around this axis. These tongues comprise at least one portion which is bent inwards.
  • the relative rotation of the contact terminal and the spring element essentially around their common longitudinal axis is hindered for a torque up to 6 Nm, and a strength of up to 860 N at 1 meter, and the power contact allows to conduct a current of 250 A, with a voltage of up to 600V.
  • the spring element's locking tongue is produced in a simple and inexpensive way:
  • the features of the spring element are stamped into a piece of sheet metal and then bent forming the spring element tube.
  • a tongue of metal inevitably is left connecting the spring element to a guiding portion which is a part of the sheet metal used for guiding the spring elements through the assembly line (for more details on the production process of contact terminals it is referred exem- plarily to EP 1 128 476 Bl).
  • the tongue is kept part of the spring element. Bent essentially into a plane perpendicular to the spring element's axis it is used for the mechanism to block the relative rotation of the two members of the assembled power contact.
  • Fig. 1A is a schematic illustration of the spring element 10 in accordance with the invention still connected to the spring element guiding portion 30;
  • Fig. IB is a schematic illustration of the spring element of Fig. 1 now disconnected from the spring element guiding portion 30;
  • Fig. 2A is a top view of the contact terminal 20 where the contact terminal 20 is still connected to the contact terminal guiding portion 32;
  • Fig. 2B is a perspective view of the contact terminal of Fig. 2A;
  • Fig. 3 shows the assembled power contact 50
  • Fig. 4 shows the assembled power connector 50 upon insertion into a connector housing
  • Fig. 5 shows a blank of the spring element 10 after stamping
  • Fig. 6 shows a blank of the contact terminal 20 after stamping.
  • a preferred embodiment of the inventive spring element 10 is shown.
  • the spring element is made from a piece of sheet metal.
  • the spring element 10 is still connected to the spring element guiding portion 30.
  • the guiding portion 30 comprises a transport hole 31 to facilitate the transport through the assembly line.
  • the spring element 10 is adapted to be cut off the spring element guiding portion in such a way that a preferably rectangular locking tongue 11 is left connected to the spring element.
  • Fig. IB shows this locking tongue 11 after it is cut off the guiding portion 30 and bent inwards essentially into a plane perpendicular to the spring element's axis.
  • the end of the spring element which is connected to the guiding por- tion 30 comprises further two stopping lugs 15 which are cut out of the spring element cylinder following the curvature of the cylinder.
  • the two lugs are bent inwards in a hook like manner and are adapted to be bent around the edges of the half cylindrical intermediate portion 22 of the contact terminal 20 (see Fig. 2A or 2B).
  • the end of the spring element 10 further comprises two latches 16 which are cut out of the spring element 10 similar to the two lugs 15 and which are likewise bent inwards following the curvature of the cylinder.
  • the spring element 10 comprises preferably on each side latching wings 13 which are preferably cut in a u- shaped fashion, the two ends of the u facing towards the end of the spring element which is not connected to the guiding portion 30.
  • the latching wings 13 are bent outwards and adapted to snap behind ledges of a housing in which the power contact is mounted, thereby blocking a linear movement of the power contact 50 opposed to its insertion direction into the housing.
  • two pairs of stopping members 14 are adapted to block the linear movement of the assembled power contact 50 in the insertion direction (see Fig.4). Together with the latching wings 13 this constitutes an arrester fixing the position of the power contact 50 inside the housing in the assembled case.
  • the spring element comprises a plurality of tongues 18 situated at the end of the spring element which in the figure is facing away from the guiding portion 30. These tongues are oriented first parallel to the spring element's axis and then bent inwards.
  • Figure 2 A shows a top view of the contact terminal 20. It comprises a contact portion 23 which is adapted to receive a preferably round contact pin, a preferably half cylindrical or half conical intermediate portion 22 and a connection portion 21 which in the preferred embodiment is adapted to be connected to a power cable by crimping means.
  • the contact portion 23 comprises contact spring arms 27 which extend essentially in a direction parallel to the power contact's longitudinal axis preferably away from the essentially cylindrical support portion 24.
  • the contact spring arms comprise bulges 28 oriented inwards to establish electrical and mechanical connection with the surface of a contact pin in the case of assembly. Every two pairs of contact spring arms 27 form a locking corner 29.
  • the side of the support portion 24 which faces away from the spring arms 27 comprises two stop edges 26, which in the preferred embodiment form a clearance 25.
  • Figs. 2A and 2B further show the contact terminal guiding portion 32 and the corresponding guiding hole 33.
  • Fig. 2B shows a perspective view of the contact terminal 20.
  • Fig. 3 a possible embodiment of the assembled inventive power contact 50 is shown.
  • the essentially cylindrical spring element 10 is mounted on the essentially cylindrical contact terminal 20 here covering most part of the contact portion 23. This view shows the blocking mechanisms which hinder a relative movement of the spring element 10 with respect to the contact terminal 20.
  • the spring element 10 is mounted on the contact portion sliding the stopping latch 12 between two contact spring arms 27 until the stopping edge 12 reaches a locking corner 29 and further movement is blocked.
  • the locking tongue 11 is bent inwards fitting between the two stop edges 26 and two stopping lugs 15 are bent around the edges of the essentially half cylindrical intermediate portion 22 of the preferred embodiment.
  • Figure 4 shows the assembled power contact 50.
  • connection portion 21 is crimped receiving a schematic connection cable 34.
  • the power contact 50 can be mounted in a housing 40 which is only schematically shown in the figure to facilitate understanding.
  • An arrow on the top of the figure points in the direction of inserting a possible contact pin inside the housing 40 when the power contact 50 is mounted.
  • Figure 5 shows the spring element 10 after being stamped out of the sheet metal before being bent into its final, essentially cylindrical shape. The features are described above.
  • Figure 6 similarly shows the contact terminal 20 after being stamped out of the sheet metal before being bent into its final, essentially cylindrical shape. The features are described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

La présente invention concerne un contact électrique comprenant une borne de contact (20) et un élément de ressort sensiblement cylindrique (10), la borne de contact (20) comprenant une partie connexion (21) pour une connexion électrique et une partie contact conçue pour accueillir une broche de contact. L'élément de ressort (10) peut être monté de façon sensiblement coaxiale avec la partie contact. La borne de contact (20) comprend en outre au moins un bord de butée (26) et l'élément de ressort (10) comprend au moins une languette de verrouillage (11) qui est courbée sensiblement dans un plan perpendiculaire à l'axe longitudinal de l'élément de ressort formant un bord de verrouillage correspondant qui, conjointement avec au moins l'un des bords de butée (26) de ladite borne de contact, bloque une rotation relative de la borne de contact (20) et de l'élément de ressort (10) l'un par rapport à l'autre.
PCT/IB2009/056052 2009-12-23 2009-12-23 Contact électrique Ceased WO2011077190A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09807721.7A EP2517310B1 (fr) 2009-12-23 2009-12-23 Contact électrique
CN200980163321.0A CN102714369B (zh) 2009-12-23 2009-12-23 功率触头
PCT/IB2009/056052 WO2011077190A1 (fr) 2009-12-23 2009-12-23 Contact électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2009/056052 WO2011077190A1 (fr) 2009-12-23 2009-12-23 Contact électrique

Publications (1)

Publication Number Publication Date
WO2011077190A1 true WO2011077190A1 (fr) 2011-06-30

Family

ID=42712699

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/056052 Ceased WO2011077190A1 (fr) 2009-12-23 2009-12-23 Contact électrique

Country Status (3)

Country Link
EP (1) EP2517310B1 (fr)
CN (1) CN102714369B (fr)
WO (1) WO2011077190A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012069499A1 (fr) 2010-11-23 2012-05-31 Fci Automotive Holding Borne électrique
WO2014111135A1 (fr) * 2013-01-15 2014-07-24 Delphi International Operations Luxembourg S.À.R.L. Ensemble de connexion électrique de forte puissance
EP2876707A4 (fr) * 2012-07-23 2016-08-10 Sk Innovation Co Ltd Dispositif de connexion de borne d'électrode de module de batterie et borne
WO2017191064A1 (fr) * 2016-05-03 2017-11-09 Amphenol-Tuchel Electronics Gmbh Douille de contact radial
DE102017220015A1 (de) * 2017-11-10 2019-05-16 Robert Bosch Gmbh Kontaktelement

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013217068A1 (de) * 2013-08-27 2015-03-19 Tyco Electronics Amp Gmbh Elektronenstrahlunterstützte Herstellung von elektrischen Bauelementen
US9905953B1 (en) 2016-09-30 2018-02-27 Slobodan Pavlovic High power spring-actuated electrical connector
WO2019164536A1 (fr) 2018-02-26 2019-08-29 Inventive Consulting Llc Connecteur électrique actionné par ressort pour des applications haute puissance
DE112019002878T5 (de) 2018-06-07 2021-05-06 Royal Precision Products, Llc Elektrische verbinderanordnung mit interner federkomponente
JP6489342B1 (ja) * 2018-07-26 2019-03-27 Smk株式会社 コネクタ
DE112020000459T5 (de) 2019-01-21 2021-11-25 Royal Precision Products, Llc Stromverteilungsanordnung mit schraubenlosem sammelschienensystem
US11721942B2 (en) 2019-09-09 2023-08-08 Eaton Intelligent Power Limited Connector system for a component in a power management system in a motor vehicle
WO2021050499A1 (fr) 2019-09-09 2021-03-18 Royal Precision Products Llc Système d'enregistrement de connecteur avec indcations lisibles et enregistrables
CN116210128A (zh) 2020-07-29 2023-06-02 伊顿智能动力有限公司 包括联锁系统的连接器系统
CN116995481A (zh) * 2023-08-02 2023-11-03 安费诺科技(深圳)有限公司 一种防脱卡环以及具有该防脱卡环的端子组件

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8915087U1 (de) 1988-12-23 1990-02-01 Amp Inc., Harrisburg, Pa. Elektrischer Anschluß mit verbesserten Sekundärarretierung-Elementen
EP0658952A1 (fr) * 1993-12-15 1995-06-21 Connecteurs Cinch Organe femelle de contact électrique et élément de boîtier de connecteur électrique destiné à recevoir un tel organe
DE19813067A1 (de) * 1997-04-16 1998-10-22 Cinch Connecteurs Sa Buchsenartiges elektrisches Kontaktorgan und Gehäuseelement eines elektrischen Verbinders
US6042432A (en) * 1997-08-11 2000-03-28 Yazaki Corporation Terminal for charging with large current
DE10009215C1 (de) * 2000-02-26 2001-05-10 Harting Kgaa Steckverbinder sowie Verfahren zur Herstellung eines Steckverbinders
WO2002084811A1 (fr) * 2001-04-11 2002-10-24 Siemens Aktiengesellschaft Fiche de connexion
WO2003032450A1 (fr) * 2001-10-05 2003-04-17 Amphenol Corporation Connecteur electrique a resilience radiale amelioree et son procede de realisation
EP1411592A1 (fr) * 2002-10-19 2004-04-21 Robert Bosch Gmbh Connecteur électrique avec la configuration d'un contact à douille avec une formation speciale des lamelles
US20080268717A1 (en) * 2007-04-26 2008-10-30 Cheng Uei Precision Industry Co., Ltd. Power connectors

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8915087U1 (de) 1988-12-23 1990-02-01 Amp Inc., Harrisburg, Pa. Elektrischer Anschluß mit verbesserten Sekundärarretierung-Elementen
EP0658952A1 (fr) * 1993-12-15 1995-06-21 Connecteurs Cinch Organe femelle de contact électrique et élément de boîtier de connecteur électrique destiné à recevoir un tel organe
DE19813067A1 (de) * 1997-04-16 1998-10-22 Cinch Connecteurs Sa Buchsenartiges elektrisches Kontaktorgan und Gehäuseelement eines elektrischen Verbinders
US6042432A (en) * 1997-08-11 2000-03-28 Yazaki Corporation Terminal for charging with large current
DE10009215C1 (de) * 2000-02-26 2001-05-10 Harting Kgaa Steckverbinder sowie Verfahren zur Herstellung eines Steckverbinders
EP1128476B1 (fr) 2000-02-26 2009-04-01 Harting Electronics GmbH & Co. KG Connecteur et procédé de fabrication d'un connecteur
WO2002084811A1 (fr) * 2001-04-11 2002-10-24 Siemens Aktiengesellschaft Fiche de connexion
EP1378028B1 (fr) 2001-04-11 2008-10-08 Coninvers GmbH Fiche de connexion
WO2003032450A1 (fr) * 2001-10-05 2003-04-17 Amphenol Corporation Connecteur electrique a resilience radiale amelioree et son procede de realisation
EP1411592A1 (fr) * 2002-10-19 2004-04-21 Robert Bosch Gmbh Connecteur électrique avec la configuration d'un contact à douille avec une formation speciale des lamelles
DE10248809A1 (de) 2002-10-19 2004-04-29 Robert Bosch Gmbh Elektrischer Steckverbinder in der Ausgestaltung eines Buchsenkontakts mit spezieller Lamellengestaltung
US20080268717A1 (en) * 2007-04-26 2008-10-30 Cheng Uei Precision Industry Co., Ltd. Power connectors

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012069499A1 (fr) 2010-11-23 2012-05-31 Fci Automotive Holding Borne électrique
EP2876707A4 (fr) * 2012-07-23 2016-08-10 Sk Innovation Co Ltd Dispositif de connexion de borne d'électrode de module de batterie et borne
WO2014111135A1 (fr) * 2013-01-15 2014-07-24 Delphi International Operations Luxembourg S.À.R.L. Ensemble de connexion électrique de forte puissance
WO2017191064A1 (fr) * 2016-05-03 2017-11-09 Amphenol-Tuchel Electronics Gmbh Douille de contact radial
US10594105B2 (en) 2016-05-03 2020-03-17 Amphenol-Tuchel Electronics Gmbh Radial jack
DE102017220015A1 (de) * 2017-11-10 2019-05-16 Robert Bosch Gmbh Kontaktelement

Also Published As

Publication number Publication date
CN102714369B (zh) 2015-09-16
EP2517310A1 (fr) 2012-10-31
EP2517310B1 (fr) 2017-09-06
CN102714369A (zh) 2012-10-03

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