EP0093424A2 - Procédé de fabrication d'élément de contact - Google Patents

Procédé de fabrication d'élément de contact Download PDF

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Publication number
EP0093424A2
EP0093424A2 EP83104208A EP83104208A EP0093424A2 EP 0093424 A2 EP0093424 A2 EP 0093424A2 EP 83104208 A EP83104208 A EP 83104208A EP 83104208 A EP83104208 A EP 83104208A EP 0093424 A2 EP0093424 A2 EP 0093424A2
Authority
EP
European Patent Office
Prior art keywords
contact
openings
contacts
core
sides
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.)
Granted
Application number
EP83104208A
Other languages
German (de)
English (en)
Other versions
EP0093424A3 (en
EP0093424B1 (fr
Inventor
Herbert Bauer
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.)
Inovan GmbH and Co KG Metalle und Bauelemente
Original Assignee
Inovan Stroebe KG
Inovan GmbH and Co KG Metalle und Bauelemente
Inovan Stroebe GmbH and Co KG
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 Inovan Stroebe KG, Inovan GmbH and Co KG Metalle und Bauelemente, Inovan Stroebe GmbH and Co KG filed Critical Inovan Stroebe KG
Priority to AT83104208T priority Critical patent/ATE46790T1/de
Publication of EP0093424A2 publication Critical patent/EP0093424A2/fr
Publication of EP0093424A3 publication Critical patent/EP0093424A3/de
Application granted granted Critical
Publication of EP0093424B1 publication Critical patent/EP0093424B1/fr
Expired 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
    • H01H11/041—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion
    • H01H11/042—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion by mechanical deformation

Definitions

  • the invention relates to a contact element consisting of a contact plate with point-inserted contacts with one-sided or two-sided contact surface, the contacts preferably consisting of a contact core which is coated on one or both sides with contact material, and a method for producing such contact elements.
  • the contacts are riveted into the contact plate, the contacts being flush with the contact plate and also being able to protrude beyond the plane of the contact plate.
  • the riveting process not only results in a firm mechanical fit of the contact rivet in the contact plate, but also a low contact resistance between the contact plate and Contact.
  • the riveting process is also suitable for producing such contact elements in automated operation.
  • the riveting of the contacts and the necessary deformation of the contact material have a disadvantage in particular if no solid contact material is used, but only contact rivets whose contact surface is only coated with contact material. Due to the deformation during riveting, this contact layer can tear or at least deform so that the necessary thickness of the contact layer no longer remains on the contact surface. This risk exists particularly in the case of contact rivets with contact surfaces on both sides (changeover contacts).
  • the production of the contact rivets in particular the bimetal or the trimetal rivets, is relatively expensive.
  • the object of the invention is to provide such a contact element, which can also be produced in automated operation, the contacts of which can consist of solid contact material as well as of bimetal * of the trimetal with one or both-sided contact surfaces, in which the contacts are mechanically secure the contact plate are kept with low contact resistance and its production ultimately also causes the lowest possible costs.
  • this object is achieved in that the contact core is cold welded to the contact plate, which is achieved in that the contact plate is provided with openings corresponding to the cross-sectional dimensions of the contact core, the openings being designed such that rod-shaped strips protruding into the openings remain and that the contact core is pressed into the openings while pushing the strips away.
  • the desired cold welding takes place when the contact core is pressed in, which not only ensures a tight fit of the contact in the contact plate, but also an extremely low contact resistance between the material of the contact plate and that of the contact core.
  • this tight fit can be further improved in that the contact is compressed after being pressed in, if appropriate at the same time as a desired surface deformation of the contact.
  • contact plates produced according to this method can in turn also be equipped with contacts which are flush with the contact plate or protrude above its level, again with contact surfaces on one or both sides.
  • the making of the contacts is extremely simple; they are simply punched out of a corresponding material as contact pins or plates.
  • the openings in the contact plate can also be easily produced in the stamping process, the openings being simultaneously chamfered on one or both sides in order to allow the contact material to be pressed into this chamfer.
  • the contact core is also slightly chamfered at its introducer, on the one hand to facilitate the insertion of the contact core into the openings and, on the other hand, to avoid the strips protruding into the openings being sheared off instead of being pushed away.
  • a contact strip (contact plate) 1 is provided with an opening 2 into which strips 3 protrude.
  • the opening 2 is slightly chamfered on both sides 4.
  • Contacts 5 in this case bimetallic contacts with a round contact core, are now pressed into these openings 2, the strips 3 projecting into the opening 2 being pressed away.
  • the manufacture of the openings 2 and the pressing of the contacts 5 can be carried out immediately one after the other, so that an additional cleaning of the cold Areas to be welded to one another between the material of the contact plate 1 and that of the contact 5 are not required. This is not necessary in particular if the contacts 5 are also punched out of a contact material strip immediately beforehand.
  • Fig. 4 shows two contacts with one-sided contact surface 6, inserted in openings 2 according to Figs. 1 and 2.
  • the contact shown on the left is beyond the level of the contact plate; the contact shown on the right is flush with the level of the contact plate 1.
  • By upsetting the contacts 5 it is achieved that the chamfered part of the opening 2 is filled or it is achieved in that the contact 5 always assumes the correct position in the contact plate 1.
  • FIG. 5 again shows, like FIG. 4, two contacts 5 inserted into the openings 2, but which have contact surfaces 6 on both sides.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Switches (AREA)
EP83104208A 1982-04-30 1983-04-29 Procédé de fabrication d'élément de contact Expired EP0093424B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83104208T ATE46790T1 (de) 1982-04-30 1983-04-29 Verfahren zur herstellung eines kontaktelementes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3216135 1982-04-30
DE19823216135 DE3216135A1 (de) 1982-04-30 1982-04-30 Kontaktelement und verfahren zu seiner herstellung

Publications (3)

Publication Number Publication Date
EP0093424A2 true EP0093424A2 (fr) 1983-11-09
EP0093424A3 EP0093424A3 (en) 1986-12-03
EP0093424B1 EP0093424B1 (fr) 1989-09-27

Family

ID=6162350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104208A Expired EP0093424B1 (fr) 1982-04-30 1983-04-29 Procédé de fabrication d'élément de contact

Country Status (3)

Country Link
EP (1) EP0093424B1 (fr)
AT (1) ATE46790T1 (fr)
DE (2) DE3216135A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1320113A2 (fr) * 2001-12-13 2003-06-18 Matsushita Electric Works (Europe) Aktiengesellschaft Elément de contact

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB760231A (en) * 1953-08-26 1956-10-31 Peppers Of Woking Ltd Improvements relating to electrical connectors
FR1448780A (fr) * 1964-11-27 1966-03-18 Bernier & Cie Ets Procédé de pose de contacts et contacts ainsi obtenus
US3341943A (en) * 1962-10-31 1967-09-19 Talon Inc Method of making electrical contact elements
CH574669A5 (en) * 1973-11-28 1976-04-15 Kaludjerovic Ilija Electrical contact element with support section - has shaft extension fitting into fixing hole with changeable cross section
US4025143A (en) * 1975-06-10 1977-05-24 Rozmus John J Electrical contacts
DE2920028A1 (de) * 1978-05-19 1979-11-29 Tetsuo Takano Elektrischer kontakt fuer einen schalter sowie verfahren zur herstellung eines solchen kontaktes
EP0037154A1 (fr) * 1980-03-27 1981-10-07 E.I. Du Pont De Nemours And Company Procédé pour l'insertion d'un point d'or dans des bornes électriques

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB760231A (en) * 1953-08-26 1956-10-31 Peppers Of Woking Ltd Improvements relating to electrical connectors
US3341943A (en) * 1962-10-31 1967-09-19 Talon Inc Method of making electrical contact elements
FR1448780A (fr) * 1964-11-27 1966-03-18 Bernier & Cie Ets Procédé de pose de contacts et contacts ainsi obtenus
CH574669A5 (en) * 1973-11-28 1976-04-15 Kaludjerovic Ilija Electrical contact element with support section - has shaft extension fitting into fixing hole with changeable cross section
US4025143A (en) * 1975-06-10 1977-05-24 Rozmus John J Electrical contacts
DE2920028A1 (de) * 1978-05-19 1979-11-29 Tetsuo Takano Elektrischer kontakt fuer einen schalter sowie verfahren zur herstellung eines solchen kontaktes
EP0037154A1 (fr) * 1980-03-27 1981-10-07 E.I. Du Pont De Nemours And Company Procédé pour l'insertion d'un point d'or dans des bornes électriques

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1320113A2 (fr) * 2001-12-13 2003-06-18 Matsushita Electric Works (Europe) Aktiengesellschaft Elément de contact
EP1320113A3 (fr) * 2001-12-13 2003-08-20 Matsushita Electric Works (Europe) Aktiengesellschaft Elément de contact

Also Published As

Publication number Publication date
ATE46790T1 (de) 1989-10-15
EP0093424A3 (en) 1986-12-03
EP0093424B1 (fr) 1989-09-27
DE3380650D1 (en) 1989-11-02
DE3216135A1 (de) 1983-11-03

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