EP0516533B1 - Verfahren zur Herstellung eines Tulpenkontaktes und Gemäss diesem Verfahren hergestellter Tulpenkontakt - Google Patents

Verfahren zur Herstellung eines Tulpenkontaktes und Gemäss diesem Verfahren hergestellter Tulpenkontakt Download PDF

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Publication number
EP0516533B1
EP0516533B1 EP92401444A EP92401444A EP0516533B1 EP 0516533 B1 EP0516533 B1 EP 0516533B1 EP 92401444 A EP92401444 A EP 92401444A EP 92401444 A EP92401444 A EP 92401444A EP 0516533 B1 EP0516533 B1 EP 0516533B1
Authority
EP
European Patent Office
Prior art keywords
block
blank
slots
diameter
good
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.)
Expired - Lifetime
Application number
EP92401444A
Other languages
English (en)
French (fr)
Other versions
EP0516533A1 (de
Inventor
Henri Organi
Roger Sauvat
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.)
Alstom Holdings SA
Original Assignee
GEC Alsthom SA
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 GEC Alsthom SA filed Critical GEC Alsthom SA
Publication of EP0516533A1 publication Critical patent/EP0516533A1/de
Application granted granted Critical
Publication of EP0516533B1 publication Critical patent/EP0516533B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/022—Moulds for compacting material in powder, granular of pasta form
    • B30B15/024—Moulds for compacting material in powder, granular of pasta form using elastic mould parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H01H1/385—Contact arrangements for high voltage gas blast circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts

Definitions

  • the present invention relates to a method of manufacturing a contact socket, usable for equipping electrical devices such as circuit breakers and disconnectors.
  • contact tulips is carried out in the following known manner: one starts from a metal tube which is a good conductor of electricity and has good elasticity properties, for example copper with chromium.
  • the tube is fitted at one end with a cupro-tungsten crown which will be used to form the contact fingers. This crown is produced by electronic bombardment or by brazing.
  • Parallel longitudinal slots are made in the crown and on part of the tube so as to constitute contact fingers.
  • the most economical current method for making these slots is to make milling passes; by this method, slits with a width of less than 1.2 mm cannot be produced; or the use of contact tulips in gas blast circuit breakers requires that the width of the slots is of the order of 0.2 mm to allow good compression of the blowing gas.
  • An object of the invention is to define a process which makes it possible to carry out the operation of shrinking the end of the tube without altering the qualities of the metal.
  • the method is carried out by means of a press comprising a fixed sheath provided with a cylindrical recess to receive the elastomer block and a bore for the establishment of a piece for centering the blank, and a movable upper block to which said cylindrical core is fixed, the upper block being associated with means for receiving a pressure which is communicated, by means of a support washer, to the block of elastomeric material.
  • a shim is disposed between the sheath and the movable block to limit the stroke of the movable block.
  • the elastomeric material of the core can advantageously be that sold under the brand ELADIP and the reference E 420 and which has a Shore A hardness of 81.
  • the reference 1 designates a blank intended for the making of a contact tulip.
  • the blank consists of a tube having one end provided with grooves 2 intended for fixing it in the electrical appliance.
  • the other portion of the tube is thinned and provided with a crown 3, and with longitudinal parallel slots, as has been explained above.
  • the sheath also comprises at its lower part, a bore allowing the fixing of a part 6 for centering the blank; this centering piece is fixed to the sheath by screws 7.
  • the press is completed by a metal upper block 8, preferably made of steel, comprising an axial bore 9 partially threaded into which is screwed a core 10 engaging, with a given clearance, inside the blank 1.
  • a means not shown allows to exert, on the upper face of the block 8 a pressure which is communicated, thanks to a support washer 11, to the elastomer block. This deforms and causes a shrinkage of the blank at the slots which tighten as desired.
  • the material chosen to produce the deformable block is advantageously an elastomer marketed under the brand ELADIP and whose shore A hardness is 81.
  • the force exerted on the upper block is 50 tonnes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Contacts (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Manufacture Of Switches (AREA)

Claims (4)

  1. Verfahren zur Herstellung eines tulpenförmigen Kontakts ausgehend von einem rohrförmigen Rohling aus einem gut leitfähigen und elastischen Material, wobei der Rohling einen verdünnten Bereich mit parallelen Längsschlitzen besitzt, der in einem Kranz aus einem Material guter elektrischer Leitfähigkeit und guter Widerstandsfähigkeit gegenüber Lichtbogenwirkungen endet, dadurch gekennzeichnet, daß das Verfahren folgende Schritte aufweist:
    - der Rohling (1) wird um einen zylindrischen Kern (10) herum angeordnet, dessen Durchmesser im wesentlichen dem Durchmesser des Rohlings gleicht und dessen Länge der des Rohlings gleicht, wobei das Ende des Kerns am Kranz anliegt,
    - um den Rohling herum legt man in Höhe der Schlitze einen Block (5) ringförmigen Querschnitts mit einem Innendurchmesser, der geringfügig größer als der Außendurchmesser des Rohlings ist, und mit einer Höhe, die im wesentlichen der der Schlitze gleicht, wobei der Block aus einem Elastomermaterial besteht,
    - man übt auf die Endflächen des Blocks einen Druck aus, durch den der Innendurchmesser des Blocks soweit verringert wird, bis die gewünschte Schlitzbreite erreicht ist.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß es eine Presse verwendet, die eine feste Hülse (4) mit einem zylindrischen Hohlraum zur Aufnahme des Elastomerblocks (5) und mit einer Vertiefung zum Anbringen eines Zentrierbauteils (6) für den Rohling (1), sowie einen beweglichen oberen Block (8) aufweist, an dem der zylindrische Kern (9) befestigt ist, wobei der obere Block mit Mitteln zur Ausübung eines Drucks versehen ist, der über eine Stützscheibe (11) auf den Elastomerblock (5) übertragen wird.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß ein Abstandshalter (12) zwischen der Hülse (4) und dem beweglichen Block (8) liegt, um die Bewegung des beweglichen Blocks zu begrenzen.
  4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Elastomermaterial des Blocks (5) unter der Marke ELADIP und dem Bezugszeichen E420 gehandelt wird und eine Härte nach Shore A von 81 besitzt.
EP92401444A 1991-05-30 1992-05-26 Verfahren zur Herstellung eines Tulpenkontaktes und Gemäss diesem Verfahren hergestellter Tulpenkontakt Expired - Lifetime EP0516533B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9106522A FR2677166B1 (fr) 1991-05-30 1991-05-30 Procede de fabrication d'une tulipe de contacts et tulipe de contacts realisee selon le procede.
FR9106522 1991-05-30

Publications (2)

Publication Number Publication Date
EP0516533A1 EP0516533A1 (de) 1992-12-02
EP0516533B1 true EP0516533B1 (de) 1995-08-09

Family

ID=9413285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92401444A Expired - Lifetime EP0516533B1 (de) 1991-05-30 1992-05-26 Verfahren zur Herstellung eines Tulpenkontaktes und Gemäss diesem Verfahren hergestellter Tulpenkontakt

Country Status (10)

Country Link
US (1) US5201207A (de)
EP (1) EP0516533B1 (de)
JP (1) JPH07111851B2 (de)
CN (1) CN1030673C (de)
AT (1) ATE126387T1 (de)
CA (1) CA2069801C (de)
DE (1) DE69203965T2 (de)
DK (1) DK0516533T3 (de)
ES (1) ES2075646T3 (de)
FR (1) FR2677166B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7716349B1 (en) 1992-12-09 2010-05-11 Discovery Communications, Inc. Electronic book library/bookstore system
US7835989B1 (en) 1992-12-09 2010-11-16 Discovery Communications, Inc. Electronic book alternative delivery systems
US7849393B1 (en) 1992-12-09 2010-12-07 Discovery Communications, Inc. Electronic book connection to world watch live
US7861166B1 (en) 1993-12-02 2010-12-28 Discovery Patent Holding, Llc Resizing document pages to fit available hardware screens
US7865405B2 (en) 1992-12-09 2011-01-04 Discovery Patent Holdings, Llc Electronic book having electronic commerce features
US7865567B1 (en) 1993-12-02 2011-01-04 Discovery Patent Holdings, Llc Virtual on-demand electronic book
US8073695B1 (en) 1992-12-09 2011-12-06 Adrea, LLC Electronic book with voice emulation features
US8095949B1 (en) 1993-12-02 2012-01-10 Adrea, LLC Electronic book with restricted access features
US9053640B1 (en) 1993-12-02 2015-06-09 Adrea, LLC Interactive electronic book

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4309678A1 (de) * 1993-03-25 1994-09-29 Stade Umformtechnik Gmbh Vorrichtung und Verfahren zur Verformung von Edelstahlmembranen für Vakuum-Wärmeisolations-Elemente
DE19516830A1 (de) * 1995-05-08 1996-11-14 Veritas Gummiwerke Ag Preßwerkzeuge und Verfahren zum Verbinden von rohrförmigen Elementen
US8062012B2 (en) * 2007-06-05 2011-11-22 Metaldyne, Llc Elastomeric seal sizer
CN104162614B (zh) * 2014-07-07 2016-03-02 河南科技大学 一种开关触指零件成形方法及其配套成形模具
CN107633976B (zh) * 2016-07-19 2019-12-06 闫淼江 高压隔离开关及其断口组件、制造阴触头的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2375574A (en) * 1942-12-30 1945-05-08 Cons Aireraft Corp Apparatus for fabricating connecting rods
FR1133961A (fr) * 1954-06-22 1957-04-04 Production Tool Alloy Company Perfectionnements apportés aux procédés pour l'obtention d'articles façonnés àpartir de poudres
US3440705A (en) * 1966-08-31 1969-04-29 Storm Products Co Method of making a printing wheel for printing a code on insulated wire
US3564884A (en) * 1968-08-20 1971-02-23 Battelle Development Corp Deformable die apparatus for tube drawing
FR2302581A1 (fr) * 1975-02-26 1976-09-24 Merlin Gerin Disjoncteur electrique a autosoufflage a chambre de coupure perfectionnee
SE408383B (sv) * 1976-04-08 1979-06-11 Asea Ab Press for formning av platar och dylikt med hjelp av en formdyna, som under formningsskedet er innesluten i en kavitet, som bildas av en ovre och en undre verktygsdel av vilka minst en er rorligt anordnad i ett ...
SU1166861A1 (ru) * 1983-11-23 1985-07-15 Предприятие П/Я Р-6877 Штамп дл формовки трубчатых заготовок
US4723430A (en) * 1986-02-18 1988-02-09 Adolph Coors Company Apparatus and method for forming a surface configuration on a can body

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7716349B1 (en) 1992-12-09 2010-05-11 Discovery Communications, Inc. Electronic book library/bookstore system
US7835989B1 (en) 1992-12-09 2010-11-16 Discovery Communications, Inc. Electronic book alternative delivery systems
US7849393B1 (en) 1992-12-09 2010-12-07 Discovery Communications, Inc. Electronic book connection to world watch live
US7865405B2 (en) 1992-12-09 2011-01-04 Discovery Patent Holdings, Llc Electronic book having electronic commerce features
US8073695B1 (en) 1992-12-09 2011-12-06 Adrea, LLC Electronic book with voice emulation features
US7861166B1 (en) 1993-12-02 2010-12-28 Discovery Patent Holding, Llc Resizing document pages to fit available hardware screens
US7865567B1 (en) 1993-12-02 2011-01-04 Discovery Patent Holdings, Llc Virtual on-demand electronic book
US8095949B1 (en) 1993-12-02 2012-01-10 Adrea, LLC Electronic book with restricted access features
US9053640B1 (en) 1993-12-02 2015-06-09 Adrea, LLC Interactive electronic book
US8548813B2 (en) 1999-06-25 2013-10-01 Adrea, LLC Electronic book with voice emulation features
US9099097B2 (en) 1999-06-25 2015-08-04 Adrea, LLC Electronic book with voice emulation features

Also Published As

Publication number Publication date
JPH07111851B2 (ja) 1995-11-29
ATE126387T1 (de) 1995-08-15
DK0516533T3 (da) 1995-09-25
JPH05198229A (ja) 1993-08-06
EP0516533A1 (de) 1992-12-02
US5201207A (en) 1993-04-13
FR2677166B1 (fr) 1993-08-06
DE69203965T2 (de) 1995-12-21
CA2069801C (fr) 1995-01-03
FR2677166A1 (fr) 1992-12-04
CN1030673C (zh) 1996-01-10
CN1069362A (zh) 1993-02-24
DE69203965D1 (de) 1995-09-14
ES2075646T3 (es) 1995-10-01

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