AT281170B - Circuit breaker - Google Patents

Circuit breaker

Info

Publication number
AT281170B
AT281170B AT1253668A AT1253668A AT281170B AT 281170 B AT281170 B AT 281170B AT 1253668 A AT1253668 A AT 1253668A AT 1253668 A AT1253668 A AT 1253668A AT 281170 B AT281170 B AT 281170B
Authority
AT
Austria
Prior art keywords
coil
circuit breaker
iron core
release lever
release
Prior art date
Application number
AT1253668A
Other languages
German (de)
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Application granted granted Critical
Publication of AT281170B publication Critical patent/AT281170B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/48—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having both electrothermal and electromagnetic automatic release
    • H01H73/50—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having both electrothermal and electromagnetic automatic release reset by lever
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H2071/0292—Housing or frames containing grooves or slots for guiding movable parts

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Leitungsschutzschalter 
 EMI1.1 
 

 <Desc/Clms Page number 2> 

    1Schaltergehäuses-l-angeordneten   Schaltschloss zusammenwirkt. 



   Die vom Verbraucherstrom durchflossene   Auslösespule-5-zieht   vermittels ihres Eisenkerns 
 EMI2.1 
 g-bei-   9-angewinkelten Lappen-12-an.   Dieser befindet sich im Mittelteil des Auslösehebels   - -9--,   der seinerseits als einarmiger Hebel gegen die Kraft einer   Feder --11-- um   sein unteres   Ende --10-- drehbar   gelagert ist und mit seinem oberen Ende ebenfalls auf den Klinkenhebel   --6-- zur   Auslösung des Schaltschlosses einzuwirken vermag. 



   Der von der   Auslösespule-5-umgebene Eisenkern-8-ist   als einfacher Stanzteil aus einem Blechband gebildet und weist einen zentralen U-förmigen Kernbügel auf, an dessen beiden Schenkelenden   Pollappen --15-- abgewinkelt   sind, die die Spulenstirnseite übergreifen. Anderseits steht der U-förmige Kernbügel mit seinem U-Steg über die eine Stirnseite der   Spule --5-- vor.   



   Der durch die erfinderischen Massnahmen dem bekannten Stand der Technik gegenüber erreichte Fortschritt besteht in der Erstellung eines Leitungsschutzschalters mit relativ geringem Ausschaltverzug, der durch die geringe Anzugszeit des   Auslösehebels-9-und   die guten magnetischen Verhältnisse durch die zweifachen Angriffspunkte zwischen   Eisenkern --8-- und   Anker erzielt ist. Infolge des Hebelverhältnisses des   Auslösehebels-9-,   das durch die in seinem mittleren Bereich vorgesehene Ankerabwinkelung erreicht wird, ist der Betätigungsweg des   Auslösehebels --9-- in   seinem Angriffspunkt an dem gleicharmigen Klinkenhebel-6-, und damit auch im Verklinkungspunkt des   Klinkenhebels --6-- mit   dem Schaltschloss nur noch halb so gross wie die Ankerbewegung. 



   PATENTANSPRÜCHE : 
1. Leitungsschutzschalter mit elektromagnetischer, thermischer oder manueller Auslösung, mit einem schwenkbar gelagerten, von einer Auslösespule in seinem mittleren Bereich gegen den Druck einer Feder beeinflussten Auslösehebel, der mit seinem freien Ende auf einen das Schaltschloss 
 EMI2.2 
 in seinem mittleren, von der Auslösespule (5) beeinflussten Bereich mit einer die Polenden des Eisenkerns (8) der elektromagnetischen Auslösespule in erregtem Zustand überbrückenden Abwinkelung (12) versehen ist. 
 EMI2.3 




   <Desc / Clms Page number 1>
 



  Circuit breaker
 EMI1.1
 

 <Desc / Clms Page number 2>

    1Switchgehäuses-l-arranged switch lock interacts.



   The tripping coil-5-through which the consumer current flows pulls by means of its iron core
 EMI2.1
 g-at-9-angled flap-12-at. This is located in the middle part of the release lever - -9--, which in turn is mounted as a one-armed lever against the force of a spring --11-- around its lower end --10-- and with its upper end also on the ratchet lever - -6-- is able to act to trigger the key switch.



   The iron core 8 surrounded by the trip coil 5 is formed as a simple stamped part from a sheet metal strip and has a central U-shaped core bow, on the two leg ends of which pole flaps --15-- are angled, which overlap the coil face. On the other hand, the U-shaped core bow with its U-web protrudes over one end of the coil --5--.



   The progress achieved by the inventive measures compared to the known state of the art consists in the creation of a line circuit breaker with a relatively low switch-off delay, which is due to the short pull-in time of the release lever -9- and the good magnetic conditions due to the double points of attack between the iron core --8-- and anchor is achieved. As a result of the lever ratio of the release lever -9-, which is achieved by the anchor deflection provided in its central area, the actuation path of the release lever is -9- at its point of application on the equal-armed ratchet lever -6, and thus also in the latching point of the ratchet lever - -6-- with the key switch only half as large as the armature movement.



   PATENT CLAIMS:
1. Miniature circuit breaker with electromagnetic, thermal or manual release, with a pivoted release lever, which is influenced by a release coil in its middle area against the pressure of a spring and which, with its free end, points to the switching mechanism
 EMI2.2
 in its central area, influenced by the trip coil (5), is provided with an angled portion (12) bridging the pole ends of the iron core (8) of the electromagnetic trip coil in the energized state.
 EMI2.3

Claims (1)

Auslösespule (5) angeordnete Auslösehebel (9) mit einem abgewinkelten Lappen (12) die eine Stirnseite der Spule übergreift und mit dem die Stirnseite überragenden Eisenkern (8) zusammenwirkt, wogegen der Eisenkern mit einem zum Auslösehebel gerichteten Fortsatz (15) die andere Stirnseite der Spule übergreift. EMI2.4 aus einem Blechband mit einem zentralen U-förmigen Kernbügel und diesem beidseitig angeformten, die Spulenstirnseite übergreifenden Pollappen (15) gebildet ist. Release coil (5) arranged release lever (9) with an angled tab (12) which overlaps one end of the coil and interacts with the iron core (8) protruding above the end, whereas the iron core with an extension (15) directed towards the release lever, the other end of the Coil overlaps. EMI2.4 is formed from a sheet metal strip with a central U-shaped core bracket and pole flaps (15) which are formed on both sides and overlap the coil end face.
AT1253668A 1966-04-23 1967-04-14 Circuit breaker AT281170B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0086791 1966-04-23

Publications (1)

Publication Number Publication Date
AT281170B true AT281170B (en) 1970-05-11

Family

ID=6983521

Family Applications (1)

Application Number Title Priority Date Filing Date
AT1253668A AT281170B (en) 1966-04-23 1967-04-14 Circuit breaker

Country Status (1)

Country Link
AT (1) AT281170B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445419A1 (en) * 1994-12-20 1996-06-27 Abb Patent Gmbh Electrical load protection switch with electromagnetic release

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445419A1 (en) * 1994-12-20 1996-06-27 Abb Patent Gmbh Electrical load protection switch with electromagnetic release

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee