CH104663A - Contact spring. - Google Patents

Contact spring.

Info

Publication number
CH104663A
CH104663A CH104663DA CH104663A CH 104663 A CH104663 A CH 104663A CH 104663D A CH104663D A CH 104663DA CH 104663 A CH104663 A CH 104663A
Authority
CH
Switzerland
Prior art keywords
contact
springs
contact spring
spring
individual springs
Prior art date
Application number
Other languages
German (de)
Inventor
Raettig Bruno
Original Assignee
Raettig Bruno
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
Priority claimed from GB910423A external-priority patent/GB211366A/en
Application filed by Raettig Bruno filed Critical Raettig Bruno
Publication of CH104663A publication Critical patent/CH104663A/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/42Knife-and-clip contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/10Sockets for co-operation with pins or blades
    • H01R13/11Resilient sockets
    • H01R13/115U-shaped sockets having inwardly bent legs, e.g. spade type
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/30Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36Conductive members located under tip of screw

Landscapes

  • Tumbler Switches (AREA)
  • Springs (AREA)

Description

  

  Kontaktfeder.    Die Erfindung betrifft eine     Kontaktfeder,     wie sie für     elektrische    Apparate, besonders  elektrische Schaltapparate, Verwendung  findet.  



  Bei .den     bisherigen    Kontaktfedern, nament  lich für grössere Stromstärken, tritt der Übel  stand auf, dass die Kontaktflächen der Kon  taktfedern nur mit einem     geringen    Teil ihrer       Gesamtfl#iiche    die     Gegenkontaktflächen,    z. B.  die     Kontaktfläic.hen    der     .Schaltmesser,    berüh  ren, und dadurch leicht eine schädliche Er  wärmung auftritt.

   Auch wird diese     schlechte     Berührung durch den beim Ausschalten er  zeugten     Funken,    welcher das Material  schmelzen kann, noch verstärkt, da unter Um  ständen die entstehenden     Schmelzperlchen    die  Kontaktfedern     auseinanderdrücken    und eine       ,nute    Berührung     .mit    den     Gegenkontaktflächen     verhindern. Um diesem Übelstand abzuhelfen,  sind     die    Kontaktfedern gelegentlich mit so  genannten     Funkenziehern    ausgestattet wor  den.

   Diese Vorrichtungen     machen    aber die  Kontaktfedern     kompliziert    und tragen :auch  nicht zur Stromübertragung     bei.-          Die        vorliegende    Erfindung beseitigt die  erwähnten Übelstände dadurch, dass .die Kon  taktfeder mehrere     inein:

  andergeschobene    Ein-         zelfedern,aufweist,    .die voneinander unabhän  gig bewegliche metallene Kontaktflächen be  sitzen, welch letztere mit dem Gegenkontakt  nacheinander in und ausser Eingriff     kommen.       Die der Erfindung gemäss.     gebaute    Kon  taktfederbietet den grossen Vorteil, dass selbst  bei hohen Stromstärken     verhältnismässig          dünne    Federbleche Verwendung finden kön  nen, deren Verarbeitung und Formgebung  viel .genauer ausgeführt wenden kann als die  jenige bei starken Federblechen.

   Ein weiterer       Vorteil    besteht     darin,        :dass    jede der Einzel  federn über Kontaktfeder für sich federn und       mit,dem    .Gegenkontakt in     Berührung    kommen  kann.

   Durch diese Anordnung wird eine viel  bessere     Kontaktgebung    gewährleistet, da       ,durch    das Versagen eines     KontaktfläcIien-          p,aares    nur ein geringer Teil der     Gesa-mtkon-          taktoberfläche    ausgeschaltet wird, während  bei einer     einteiligen    Feder durch einen Fremd  körper die ganze     Kontaktfläche    unwirksam  wird. Die     äussere    Kontaktfeder dient bei die  ser Anordnung .als     Funkenzieher.     



  Auf der Zeichnung sind vier Ausfüh  rungsformen     rdes        Erfindungsgegenstandes    bei  spielsweise dargestellt.           Fi.g.    1     bis    zeigen je     eine        Vorder-    und  Seitenansicht der vier Ausführungsformen.  



  Bei der Ausführungsform nach     Fig.    1 be  steht die Kontaktfeder aus zwei gebogenen  Einzelfedern a und b, die ineinander gescho  ben sind. Die .aussenliegende Kontaktfeder hat  kurze, nach einwärts     gebogene    Sehenkel,     die     innenliegende Kontaktfeder b längere, nach  einwärts gebogene Schenkel.

   Diese     Snlienl@el     dienen als     Kontaktflticheii.    Die Kontakt  federn     a    und b     werden    in bekannter Weise  in ein geschlitztes     Anschlussstüek    c einge  lötet oder     festgeschraubt.    In diesem Kontakt  stück c werden die Zuleitungsdrähte     durch     eine     Klemmsühraube   <I>d</I> in der Bohrung     f    fest  geklemmt. Der     Ans@chluss,    der Zuleitungs  drähte kann auch auf     andere    bekannte Weise  erfolgen.  



  Bei der Ausführungsform     nach        Fig.    2  sind drei Einzelfedern<I>a, b,</I>     g        ineinanderge-          schoben.    Ausserdem ist eine Unterteilung in       Gruppen    in der Breite der Kontaktfeder vor  gesehen, derart,     da.ss    die     Kontaktfeder    ge  schlitzt ist, oder dass mehrere Gruppen von       ineinandergeschobenen        Einzelfedern    neben  einander in dem Schlitz des     Anschltissstüclzes     c     befestigt    sind.  



       Fig.    3 zeigt eine Kontaktfeder mit drei  Gruppen von drei     ineinundergeschobenen        Ein-          ze.lfedern        a1,        b',   <B><I>9</I></B>     ',    welche nur in der Form    der     Kontaktllä;clien    von der     Ausführungsform     nach     Fig.    1 und 2     ail,-uvuiclien.     



       Fig.    d zeigt eine     Kontaktfeder    mit vier  Gruppen von     vif#r        ineinandergeschobenen    Ein  zelfedern     a2,        b2,        c#        I',        la=,    ähnlich der     Fig.    1  bis 3, jedoch ist hier die     Anördnung    so vor  gesehen, dass     diu        Einzelfedern    aus verhält  nismässig dünnen     Blechen        lierge:tellt    sind  und je nach der Lage mehrfach     abgekröpft     sind.

   Durch diese     Anordnung    wird eine be  sonders sanfte und doch gute     Federuno,    und  ein guter     Kontakt    bezweckt. Die Form der       Einzelfedern    kann     aueli    noch eine andere sein.



  Contact spring. The invention relates to a contact spring of the type used for electrical apparatus, especially electrical switching apparatus.



  In the case of the previous contact springs, namely for larger currents, the problem arises that the contact surfaces of the contact springs only meet the mating contact surfaces with a small part of their total area, e.g. B. the Kontaktfläic.hen the .Schaltmesser, touch Ren, and thus easily a harmful heating occurs.

   This bad contact is also intensified by the spark generated when switching off, which can melt the material, as the resulting melt beads may push the contact springs apart and prevent a slight contact with the mating contact surfaces. In order to remedy this inconvenience, the contact springs are occasionally equipped with so-called spark pullers.

   However, these devices make the contact springs complicated and also do not contribute to the transmission of electricity. The present invention eliminates the drawbacks mentioned by the fact that the contact spring contains several in one:

  single springs pushed on the other, .the independently movable metal contact surfaces, which the latter come into and out of engagement with the mating contact one after the other. According to the invention. Built contact spring offers the great advantage that even with high currents, relatively thin spring steel sheets can be used, the processing and shaping of which can be carried out much more precisely than the one with strong spring steel sheets.

   Another advantage is that: each of the individual springs springs individually via contact springs and can come into contact with the counter contact.

   This arrangement ensures a much better contact, because the failure of a contact surface only switches off a small part of the total contact surface, while with a one-piece spring the entire contact surface becomes ineffective due to a foreign body. In this arrangement, the outer contact spring serves as a spark puller.



  In the drawing, there are four embodiments of the subject matter of the invention, for example. Fi.g. 1 through 1 each show a front and side view of the four embodiments.



  In the embodiment of Fig. 1 be the contact spring consists of two curved individual springs a and b, which are ben scho into each other. The external contact spring has short, inwardly curved legs, the inner contact spring b has longer, inwardly curved legs.

   These lines serve as contact flticheii. The contact springs a and b are soldered or screwed into a slotted connector c in a known manner. In this contact piece c, the lead wires are firmly clamped in the bore f by means of a clamping screw hood <I> d </I>. The connection, the supply wires can also be made in other known ways.



  In the embodiment according to FIG. 2, three individual springs <I> a, b, </I> g are pushed into one another. In addition, a subdivision into groups across the width of the contact spring is provided such that the contact spring is slotted or that several groups of individual springs pushed into one another are fastened next to one another in the slot of the connection piece c.



       3 shows a contact spring with three groups of three nested single springs a1, b ', <B><I>9</I> </B>', which are only available in the form of contact balls from the Embodiment according to FIGS. 1 and 2 ail, -uvuiclien.



       Fig. D shows a contact spring with four groups of vif # r nested single springs a2, b2, c # I ', la =, similar to FIGS. 1 to 3, but here the arrangement is seen in front of that that the individual springs from behaving properly thin metal sheets are lierge: tellt and are bent several times depending on the position.

   This arrangement is intended to be particularly gentle and yet good spring uno and good contact. The shape of the individual springs can also be different.

 

Claims (1)

P:ITEN T_1NSPRUCII: Kontaktfedur, dadurch gekennzeichnet, dass sie mehrere ineintt.ndergescliobene Einzel federn :aufweist, die voneinander unabhängig bewegliche metallene Kontaktflächen be sitzen, .die mit dem Gegenkontakt nacheinan der in und ausser Eingriff kommen. P: ITEN T_1NSPRUCII: Contact spring, characterized in that it has several interconnected individual springs that have metal contact surfaces that can move independently of one another and that come into and out of engagement with the mating contact one after the other. <B>UNTERANSPRUCH:</B> lionta.htfe@der nach Patentansprit@h, da durch gekennzeichnet, dass mehrere Gruppen von ineinandergesehobenen Einzelfedern ne- heneinauder angeordnet sind. <B> SUBSTANTIAL CLAIM: </B> lionta.htfe@der according to Patentansprit @ h, as characterized in that several groups of nested individual springs are arranged side by side.
CH104663D 1923-04-03 1923-04-04 Contact spring. CH104663A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB910423A GB211366A (en) 1923-04-03 1923-04-03 Improvements in electric contacts
US633513A US1477527A (en) 1923-04-03 1923-04-20 Contact spring

Publications (1)

Publication Number Publication Date
CH104663A true CH104663A (en) 1924-05-01

Family

ID=26242695

Family Applications (1)

Application Number Title Priority Date Filing Date
CH104663D CH104663A (en) 1923-04-03 1923-04-04 Contact spring.

Country Status (2)

Country Link
US (1) US1477527A (en)
CH (1) CH104663A (en)

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Also Published As

Publication number Publication date
US1477527A (en) 1923-12-11

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