EP0435408B1 - Contact à pression élastique - Google Patents

Contact à pression élastique Download PDF

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Publication number
EP0435408B1
EP0435408B1 EP90250246A EP90250246A EP0435408B1 EP 0435408 B1 EP0435408 B1 EP 0435408B1 EP 90250246 A EP90250246 A EP 90250246A EP 90250246 A EP90250246 A EP 90250246A EP 0435408 B1 EP0435408 B1 EP 0435408B1
Authority
EP
European Patent Office
Prior art keywords
contact
hollow cylinder
head
tongues
guide sleeve
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
EP90250246A
Other languages
German (de)
English (en)
Other versions
EP0435408A3 (en
EP0435408A2 (fr
Inventor
Klaus Kaestner
Georg Treinies
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.)
FABEG GmbH
Original Assignee
FABEG GmbH
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 FABEG GmbH filed Critical FABEG GmbH
Publication of EP0435408A2 publication Critical patent/EP0435408A2/fr
Publication of EP0435408A3 publication Critical patent/EP0435408A3/de
Application granted granted Critical
Publication of EP0435408B1 publication Critical patent/EP0435408B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs

Definitions

  • the invention relates to a resilient pressure contact for the front system and for current transmission to a fixed contact with a movable metallic contact head, as further defined in the preamble of claim 1.
  • the contact head moves axially against a spring force within its guide sleeve when it rests on a fixed contact within its guide sleeve.
  • the current transfer between the contact connection and the movable contact head takes place through copper strands within the guide sleeve. A not inconsiderable manual manufacturing effort is required for the production. If the number of contacts is high, the inner copper strands often break.
  • Such pressure contacts generally have no switching function. They are brought to the system without power or separated.
  • the object of the invention is to improve the service life of the resilient pressure contacts in the direction of increasing the number of possible contact strokes, to increase the reliability by avoiding or reducing strand breaks, to reduce the overall manual production effort and at the same time to increase the current carrying capacity.
  • a switch has already become known in which a contacting plug is inserted into a resilient mating contact (US Pat. No. 3,205,332).
  • the switch In counter contact, the switch has a movable erosion contact head, which is hollow-cylindrical on the end facing away from the contact pieces and is designed to accommodate a compression spring.
  • a high-resistance current transfer between the plug parts is first established via the above erosion contact head by pressure contact.
  • the erosion contact head which is equipped with resilient guide surfaces, is moved within a slotted guide sleeve which, in the end position as a tulip contact piece, comprises the actual plug contact of the plug in a low-resistance manner.
  • Such an erosion contact head of a plug is not usable for resilient pressure contacts in the area of railway applications.
  • a metal contact head 2 made of solid material and with contact pieces 1 is mounted in a guide sleeve 3 so that it cannot rotate, but is displaceable.
  • a compression spring 4 holds the contact head in the position shown.
  • a force P presses in the direction of the arrow and the contact head 2 is pressed - here to the right - by pressing the compression spring 4.
  • the electrical connection is made via a screw bolt 5, the current transfer from the fixed connecting plate 7 to the movable contact head 2 via various copper strands or bands 6 is effected. The latter are introduced with a twist and soldered at the ends.
  • Fig. 2 now shows a new contact head 2a.
  • the fit dimensions are the same and therefore interchangeable.
  • the copper strands 6 have now been omitted.
  • the new contact head 2a On its side facing away from the contact pieces 1, the new contact head 2a is partially designed as a hollow cylinder 8 and is provided with slots 9 which are radial to the longitudinal axis.
  • the remaining wall sectors form contact tongues 10 which, according to FIG. 3, abut on the inside of the guide sleeve 3 and thus serve to transfer current from the connecting bolt 5 via the guide sleeve 3 to the contact head.
  • the profile of the Kostaktzonne 10 is formed by an undercut with a contact-making area 12 of the largest outside diameter on the very outside on the side facing away from the contact pieces 1 and inwardly adjoining areas with reduced outside diameters, the smallest outside diameter located at the end of the radial slots 9 being the tongue fixed points 13 for the Tongue movement determined.
  • the compression spring 4 of the resilient pressure contact engages centrally in the hollow cylinder 8 of the coupling head 2a, is supported on the base 14 and is fixed there. Snap rings can be inserted in one or more circumferential inner ring grooves 15 to increase the contact pressure. The necessary high electrical conductivity as well as resistance to abrasion are ensured by a suitable choice of materials.
  • the new pressure contacts remain unchanged from the previous design. The new contact head is full with the previous ones - i.e. mechanically and electrically - compatible.

Landscapes

  • Contacts (AREA)
  • Resistance Heating (AREA)
  • Surface Heating Bodies (AREA)
  • Springs (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Claims (4)

  1. Contact à pression faisant ressort, pour l'installation, au côté frontal, à un contact fixe et pour la transmission de courant sur ce contact fixe, comprenant une tête de contact métallique mobile, qui, lors d'installation au contact fixe, devient repoussée axialement, à l'encontre de la force d'un ressort de pression, à l'intérieur d'un manchon de guidage, la tête de contact, fermée du côté du contact, constituée partiellement comme un cylindre creux, étant aménagée pour un accueil du ressort de pression, en particulier pour des emplois de glissière,
       caractérisé en ce,
       que la tête de contact (2a), pour une intensité de courant maximale admissible élevée, est pourvue d'une pluralité de fentes longitudinales (9) dans la paroi, qui partent de l'extrémité du cylindre creux (8) éloignée des pièces de contact (1), et, grâce à cela, forment des secteurs de paroi, qui sont constitués comme des languettes de contact (10) conduisant bien le courant, faisant ressort, et présentent des régions d'extrémité (12) donnant un contact, configurées bombées, qui adhèrent en frottant sur le côté intérieur du manchon de guidage (3) transmettant le courant.
  2. Contact à pression selon la revendication 1,
       caractérisé en ce,
       que le profil des languettes de contact (10) de la tête de contact (2a) devient formé par découpe arrière du diamètre extérieur du cylindre creux (8), des régions avec des diamètres réduits, encore plus intérieures, se raccordant à une région donnant un contact extérieur de plus grand diamètre (12) sur le côté extérieur éloigné des pièces de contact (1), et un diamètre extérieur moindre, se trouvant à l'extrémité des fentes radiales, formant le point fixe de languette (13).
  3. Contact à pression selon la revendication 1 ou la revendication 2,
       caractérisé en ce,
       que la force de ressort des languettes de contact (10) est renforcée par une ou plusieurs bagues d'expansion dans l'intérieur du cylindre creux (8).
  4. Contact à pression selon la revendication 3,
       caractérisé en ce,
       que les bagues d'expansion sont logées, à hauteur de la région (12) donnant un contact, dans des gorges annulaires (15) intérieures, de révolution, du cylindre creux (8) .
EP90250246A 1989-11-17 1990-09-26 Contact à pression élastique Expired - Lifetime EP0435408B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3938706A DE3938706C1 (fr) 1989-11-17 1989-11-17
DE3938706 1989-11-17

Publications (3)

Publication Number Publication Date
EP0435408A2 EP0435408A2 (fr) 1991-07-03
EP0435408A3 EP0435408A3 (en) 1992-01-02
EP0435408B1 true EP0435408B1 (fr) 1996-04-10

Family

ID=6393977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90250246A Expired - Lifetime EP0435408B1 (fr) 1989-11-17 1990-09-26 Contact à pression élastique

Country Status (5)

Country Link
EP (1) EP0435408B1 (fr)
AT (1) ATE136682T1 (fr)
DE (2) DE3938706C1 (fr)
ES (1) ES2086366T3 (fr)
GR (1) GR3020253T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1289072A2 (fr) 2001-09-04 2003-03-05 era-contact GmbH Contact électrique à pression
DE10261733A1 (de) * 2002-12-30 2004-07-22 Ims Connector Systems Gmbh Steckverbinder mit gerollter Hülse
DE102004027902A1 (de) * 2004-06-09 2005-12-29 Ims Connector Systems Gmbh Druckkontakt, insbesondere Batterieanschlusskontakt
DE102004040118A1 (de) * 2004-08-18 2006-03-09 Ims Connector Systems Gmbh Kontakt mit einem Kontaktstift, einer Führung und einer Kontakteinrichtung zwischen diesen sowie Kontaktstift

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0573690A1 (fr) * 1992-06-11 1993-12-15 GEC Alsthom T&D AG Contact à pression
FR2709025B1 (fr) * 1993-08-10 1995-10-20 Legrand Sa Contact électrique élastique.
JP3156957B2 (ja) * 1995-08-29 2001-04-16 矢崎総業株式会社 コネクタ
FR2768897B1 (fr) * 1997-09-23 1999-11-19 Matra Marconi Space France Dispositif d'interconnexion de modules electroniques dans un assemblage a trois dimensions
JP2001143803A (ja) * 1999-11-16 2001-05-25 Yazaki Corp 突き当て式接触端子とそれを用いたコネクタ
DE10158716B4 (de) * 2001-11-29 2005-08-18 Dellner Kupplungen Gmbh Kontakt zum Übertragen von elektrischem Strom
DE10332298B4 (de) 2003-07-16 2018-09-27 Schaltbau Gmbh Wasserdichter Druckkontakt-Steckverbinder, Kontaktelement für einen wasserdichten Druckkontakt-Steckverbinder und Verfahren zur Herstellung eines Kontaktelements
DE102004033864A1 (de) 2004-07-13 2006-02-16 Era-Contact Gmbh Elektrischer Druckkontakt

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE563635C (de) * 1929-06-18 1932-11-07 Siemens Schuckertwerke Akt Ges Schalteinrichtung fuer ein Arbeiten mit besonders grosser Schalthaeufigkeit
GB655491A (en) * 1948-06-18 1951-07-25 Reyrolle A & Co Ltd Improvements relating to contact arrangements of electric circuit breakers
US2728062A (en) * 1952-12-04 1955-12-20 American Phenolic Corp Spring loaded butt contact with external contacting sleeve
US3205332A (en) * 1963-08-15 1965-09-07 Kinetics Corp Switch having two pairs of contacts, one pair being formed of material having higherresisttvity characteristic than the other pair

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1289072A2 (fr) 2001-09-04 2003-03-05 era-contact GmbH Contact électrique à pression
US6773312B2 (en) 2001-09-04 2004-08-10 Era-Contact Gmbh Electrical pressure contact
DE10261733A1 (de) * 2002-12-30 2004-07-22 Ims Connector Systems Gmbh Steckverbinder mit gerollter Hülse
DE10261733B4 (de) * 2002-12-30 2005-07-21 Ims Connector Systems Gmbh Steckverbinder mit gerollter Hülse
DE102004027902A1 (de) * 2004-06-09 2005-12-29 Ims Connector Systems Gmbh Druckkontakt, insbesondere Batterieanschlusskontakt
DE102004027902B4 (de) * 2004-06-09 2006-06-08 Ims Connector Systems Gmbh Druckkontakt, insbesondere Batterieanschlusskontakt
DE102004040118A1 (de) * 2004-08-18 2006-03-09 Ims Connector Systems Gmbh Kontakt mit einem Kontaktstift, einer Führung und einer Kontakteinrichtung zwischen diesen sowie Kontaktstift

Also Published As

Publication number Publication date
DE3938706C1 (fr) 1990-10-04
ES2086366T3 (es) 1996-07-01
EP0435408A3 (en) 1992-01-02
ATE136682T1 (de) 1996-04-15
DE59010279D1 (de) 1996-05-15
GR3020253T3 (en) 1996-09-30
EP0435408A2 (fr) 1991-07-03

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