DE523821C - Switch for high breaking capacity, especially overcurrent switches - Google Patents

Switch for high breaking capacity, especially overcurrent switches

Info

Publication number
DE523821C
DE523821C DEV24368D DEV0024368D DE523821C DE 523821 C DE523821 C DE 523821C DE V24368 D DEV24368 D DE V24368D DE V0024368 D DEV0024368 D DE V0024368D DE 523821 C DE523821 C DE 523821C
Authority
DE
Germany
Prior art keywords
switch
switches
breaking capacity
high breaking
overcurrent
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
Application number
DEV24368D
Other languages
German (de)
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.)
Voigt and Haeffner AG
Original Assignee
Voigt and Haeffner AG
Publication date
Priority to DEV24368D priority Critical patent/DE523821C/en
Application granted granted Critical
Publication of DE523821C publication Critical patent/DE523821C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/32Insulating body insertable between contacts

Landscapes

  • Breakers (AREA)

Description

Um die Abschaltleistung von elektrischen Schaltern zu erhöhen, ist es bekannt, zwischen zwei feststehenden Isolierplatten eine dritte Isolierplatte zn bewegen, die durch ein in ihr eingelegtes Kontaktstück eine Stromverbindung zwischen den in den feststehenden Platten befindlichen Kontakten herbeiführt. Bei der Schaltbewegiung solcher Schalter zeigt es sich, daß ein Ziehen des Lichtbogens in die Spalten zwischen der beweglichen und den feststehenden Platten eintreten kann. Um dieses zu vermeiden, wird erfindungsgemäß in die bewegliche Platte kein Kontaktstück eingelegt, sondern diese Platte besitzt eine Durchbohrung, die so groß ist, daß in der Einschaltstelkmg ein Schließen der federnd in den beiden feststehenden Platten gelagerten Kontakte ermöglicht wird. Durch schnelle Bewegung der mittleren Platte wird die Kontaktstelle durchschnitten und so ein Ziehen des Lichtbogens überhaupt vermieden. Da hierbei irgendwelche Verbrennungsrückstände, Sohmelzperkn usw., nicht eintreten, so ist stets ein sicheres Schalten gewährleistet. Die Verschiebung der mittleren Platte beim Einschalten kann, falls eine Momentschaltung erforderlich ist, beispielsweise bei Übenstromschaltern in bekannter Weise unter Aufladen eines Kraftspeichers z. B. durch Spannen einer Feder erfolgen, die im Augenblick der Auslösung durch magnetische oder thermische Kräfte freigegeben wird. In den Abbildungen ist eine der möglichen Ausführungsformen, und zwar für einen Überstromschalter dangestellt, a, b, c sind die drei Isolierplatten, von denen diePlattena undIn order to increase the breaking capacity of electrical switches, it is known to move a third insulating plate zn between two stationary insulating plates which, through a contact piece inserted in it, creates a current connection between the contacts located in the stationary plates. During the switching movement of such switches, it is found that the arc can be drawn into the gaps between the movable and the fixed plates. To avoid this, according to the invention, no contact piece is inserted into the movable plate, but this plate has a through-hole which is so large that the contacts resiliently mounted in the two fixed plates can be closed in the switch-on position. Rapid movement of the middle plate cuts the contact point, thus avoiding drawing the arc at all. Since there are no combustion residues, soil clogs, etc., safe switching is always guaranteed. The displacement of the middle plate when switching on can, if a momentary circuit is required, for example in overcurrent switches in a known manner while charging an energy storage device z. B. be done by tensioning a spring, which is released at the moment of triggering by magnetic or thermal forces. In the figures, one of the possible embodiments is shown, namely for an overcurrent switch, a, b, c are the three insulating plates, of which the plates a and

c feststehend sind. Sie besitzen Öffnungen d und e, in die die federnden Kontakte f und g hineinragen. Die Scheibe g· ist beweglich und besitzt eine öffnung h, die in der Einschalt- 40 stellung die Berührung der Kontakte f und germöglicht. An der Scheibe b greifen Federn i und k an, die beim Einschalten gespannt werden, ι ist ein Anschlag an der Scheibe b, der sich in der Einschaltstellung hinter die 45 Klinke?» legt, η ist der Überstrommagnet. Abb. ι und 2 zeigen den Überstromschalter eingeschaltet, Abb. 3 und 4 den Schalter in der Ausschaltstellung. Tritt ein überstrom auf, so wird durch die Bewegung des Ankers 5° des Überstromrnaigneten η die Klinke m zur Seite bewegt. Der Anschlag 1 und damit die Isolierscheibe b werden frei, und letztere wird durch die Kraft der Federn i und k in die Aiusschaltßtellung geworfen. Ein Unterbre- 55 chiungsfeuer kann kaum auftreten, weil die Platte b die öffnungen der Platten α und b verschließt. c are fixed. They have openings d and e into which the resilient contacts f and g protrude. The disk g is movable and has an opening h which, in the switched-on position, enables the contacts f and g to touch. B to the disk access springs i and k, which are clamped at power ι is a stop b on the disc that is in the on position behind the 45 catch? " lays, η is the overcurrent magnet. Fig. Ι and 2 show the overcurrent switch switched on, Fig. 3 and 4 the switch in the off position. If an overcurrent occurs, the pawl m is moved to the side by the movement of the armature 5 ° of the overcurrent rnaigneten η. The stop 1 and thus the insulating washer b are released, and the latter is thrown into the Aius switch position by the force of the springs i and k. An interruption fire can hardly occur because the plate b closes the openings in the plates α and b .

Claims (1)

Patentanspruch:Claim: Schalter für hohe Abschaltleistung, insbesondere Überstromschalter, bei denen zur Stromunterbrechung· drei eng aneinanderliegende Isolierplatten verwendet werden, von denen die mittlere Platte beweglich eingerichtet ist, dadurch gekennzeichnet, daß in der Einschaltstellung die federnden Kontakte, die durch Öffnungen der feststehenden Platten hindurchtreten, innerhalb einer Durchbohrung der beweglichen mittleren Platte liegen.Switches for high breaking capacity, especially overcurrent switches, where for power interruption · three closely spaced insulating plates are used , of which the middle plate is movably arranged, characterized in that, that in the switched-on position, the resilient contacts through openings of the fixed plates pass through, within a through hole of the movable ones middle plate. Von dem Patentsucher ist als der Erfinder angegeben worden:The patent seeker stated as the inventor: Friedrich Schoof in Eppstein, Taunus.Friedrich Schoof in Eppstein, Taunus. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEV24368D Switch for high breaking capacity, especially overcurrent switches Expired DE523821C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV24368D DE523821C (en) Switch for high breaking capacity, especially overcurrent switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV24368D DE523821C (en) Switch for high breaking capacity, especially overcurrent switches

Publications (1)

Publication Number Publication Date
DE523821C true DE523821C (en) 1931-04-28

Family

ID=7581146

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV24368D Expired DE523821C (en) Switch for high breaking capacity, especially overcurrent switches

Country Status (1)

Country Link
DE (1) DE523821C (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1095919B (en) * 1952-07-31 1960-12-29 Siemens Ag Electrical package switch with closed switching chamber
DE1102238B (en) * 1953-07-03 1961-03-16 Italo Rizzieri Plug device for electrical circuits
DE1161619B (en) * 1960-08-31 1964-01-23 Siemens Ag Electrical AC synchronous switch or current limiter switch
DE1202197B (en) * 1960-01-27 1965-09-30 Maerklin & Cie Gmbh Geb Two-coil plunger actuator for toys with electrical position feedback
FR2634942A1 (en) * 1988-07-27 1990-02-02 Sprecher & Schuh Ag ELECTRIC ARC EXTINGUISHING DEVICE FOR LOW VOLTAGE SWITCH LIMITING SHORT CIRCUIT CURRENT
DE19903938C1 (en) * 1999-02-01 2000-11-30 Moeller Gmbh Self-recovery current limiter has insulated separating bar in compression chamber held under influence of super pressure
DE102007049166A1 (en) * 2007-10-13 2009-04-16 GM Global Technology Operations, Inc., Detroit Mechanically operable electrical switch for light in motor vehicle, has contact separating piece, where force/distance characteristic linearly increases in area from physical separation of contact pieces during separating piece manipulation
EP2784795A1 (en) * 2013-03-27 2014-10-01 Abb Ag Electric switch

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1095919B (en) * 1952-07-31 1960-12-29 Siemens Ag Electrical package switch with closed switching chamber
DE1102238B (en) * 1953-07-03 1961-03-16 Italo Rizzieri Plug device for electrical circuits
DE1202197B (en) * 1960-01-27 1965-09-30 Maerklin & Cie Gmbh Geb Two-coil plunger actuator for toys with electrical position feedback
DE1161619B (en) * 1960-08-31 1964-01-23 Siemens Ag Electrical AC synchronous switch or current limiter switch
FR2634942A1 (en) * 1988-07-27 1990-02-02 Sprecher & Schuh Ag ELECTRIC ARC EXTINGUISHING DEVICE FOR LOW VOLTAGE SWITCH LIMITING SHORT CIRCUIT CURRENT
DE19903938C1 (en) * 1999-02-01 2000-11-30 Moeller Gmbh Self-recovery current limiter has insulated separating bar in compression chamber held under influence of super pressure
DE102007049166A1 (en) * 2007-10-13 2009-04-16 GM Global Technology Operations, Inc., Detroit Mechanically operable electrical switch for light in motor vehicle, has contact separating piece, where force/distance characteristic linearly increases in area from physical separation of contact pieces during separating piece manipulation
EP2784795A1 (en) * 2013-03-27 2014-10-01 Abb Ag Electric switch

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