EP0577586B1 - Selbstschalter - Google Patents

Selbstschalter Download PDF

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Publication number
EP0577586B1
EP0577586B1 EP93890124A EP93890124A EP0577586B1 EP 0577586 B1 EP0577586 B1 EP 0577586B1 EP 93890124 A EP93890124 A EP 93890124A EP 93890124 A EP93890124 A EP 93890124A EP 0577586 B1 EP0577586 B1 EP 0577586B1
Authority
EP
European Patent Office
Prior art keywords
catch
support bar
housing
automatic circuit
pivot
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
EP93890124A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0577586A1 (de
Inventor
Adolf Tetik
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.)
Felten and Guilleaume Austria AG
Original Assignee
Felten and Guilleaume Austria AG
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 Felten and Guilleaume Austria AG filed Critical Felten and Guilleaume Austria AG
Publication of EP0577586A1 publication Critical patent/EP0577586A1/de
Application granted granted Critical
Publication of EP0577586B1 publication Critical patent/EP0577586B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • 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
    • H01H71/04—Means for indicating condition of the switching device

Definitions

  • the invention relates to a circuit breaker with a fixed contact piece associated switching bridge, which is under the action of a spring pulling it into its open position, with a pawl support pivotably mounted relative to the switching bridge and a pawl pivotable relative to the switching bridge, the pawl support being held by a torsion spring in it is locked with the pawl active position, and with a bracket that couples the pawl with an operating button.
  • EP-O 143 982 B1 shows and describes a self-switch in which the switching bridge is mounted so as to be pivotable about a pivot axis fixed to the housing.
  • the switching bridge has a jack support that has three arms.
  • a bimetallic release acts on one arm of the latch support and the plunger of an impact anchor release acts on the second arm.
  • the third arm of the jack support interacts with a jack which is pivotally mounted on the switching bridge.
  • a bracket is articulated on the pawl, which is connected at its other end to an actuating button which is rotatably mounted in the housing.
  • the switch bridge is pulled into its open position by a tension spring.
  • the actuating button is also acted upon by a spring which tends to bring the actuating button into the position which corresponds to the open state of the automatic switch (off position).
  • a disadvantage of this known embodiment is that both the pawl support and the pawl are pivotally mounted directly on the switching bridge, so that there is a construction which adversely affects the triggering behavior of the circuit breaker.
  • a circuit breaker according to the preamble of claim 1 is e.g. known from EP-A-0 295 158.
  • the invention has for its object to provide a circuit breaker that compared to the known embodiments, as far as its triggering behavior is improved.
  • the switching bridge is relieved of load, since it is no longer directly the carrier of the jack support on the one hand and the jack on the other hand.
  • circuit breaker is shown as an application example of the circuit breaker according to the invention and two exemplary embodiments of the invention.
  • a housing which consists of a lower shell 44 and an upper shell (not shown in the drawing).
  • the self-switch shown in FIGS. 1 to 5, which is integrated in a circuit breaker in FIG. 1, has an actuating button 1 which is pivotally mounted in the housing and which is coupled via a bracket 2 to a pawl 3 of the switch lock of the self-switch.
  • the circuit breaker is equipped with a bimetallic release 27 and a magnetic release 17.
  • the bimetallic release 27 acts on a latch support 6 of the circuit breaker 6 via a drawbar 13 which is displaceably guided in the intermediate shell 44 and the magnetic release 17 via its armature 17 '.
  • An arc quenching chamber 18 with deion plates is accommodated in the circuit breaker.
  • the actuating button 1 which is pivotably mounted in the housing, is loaded by a spring 1 'into the pivot position shown in FIGS. 1 and 3 and corresponding to the OFF position.
  • the actuation button 1 is coupled via the bracket 2 with the pawl 3 of the switch lock of the circuit breaker.
  • the pawl 3 is pivotally mounted on a support bracket 4 via a pin 7 or a tubular rivet serving as a bearing.
  • the pawl 3 is U-shaped, wherein in both legs of the pawl 3 openings for receiving the pin 7 (or Tubular rivets) are provided.
  • a projection 9 is provided, which, as will be described later, can engage behind a shoulder 10 on the pawl support 6 in order to latch the pawl 3 with the pawl support 6.
  • the pawl support 6 is pivotally mounted on the support bracket 4, both the support bracket 4 and the pawl support 6 being placed over a pivot axis 11 fixed to the housing and pivotable about the latter.
  • the carrier tab 4 is pivotally connected to the switching bridge 5, for example via a tubular rivet 12.
  • the axis (tubular rivet 12), about which the carrier plate 4 can be pivoted relative to the switching bridge 5, is located between the housing-fixed pivot axis 11 for the jack support 6, the switching bridge 5 and the carrier plate 4 and the free end of the switching bridge 5, which is in the ON position -Position on the housing-fixed contact of the LS part.
  • the carrier tab 4 is U-shaped and is pivotally mounted in the region of its legs via the tubular rivet 12 on the switching bridge 5. In openings in the legs of the carrier tab 4, the pin 7 (or the tubular rivet) also engages, so that the pawl 3 on the carrier tab 4 pivotally mounted pin 7 and the tubular rivet 12 are each inserted into two bearing openings in the carrier tab 4, and there is a symmetrical load.
  • a torsion spring 16 is inserted over a projection 14 surrounding the bearing opening for the axis 11 in the pawl support 6.
  • One end 16 'of the torsion spring 16 is hooked into a hook 4' on the carrier bracket 4 and the other end 16 '' of the torsion spring 16 into a hook 6 'on the pawl support 6.
  • the torsion spring 16 loads the pawl support 6 such that its end adjacent the pawl 3 and having the shoulder 10 is moved towards the pawl 3.
  • a bearing opening designed as an elongated hole 20 (FIGS. 4 and 5) is provided, through which the pivot axis 11, which is fixed to the housing, engages, via which the mounting bracket 4 and the pawl support 6 also pass through their bearing openings are stuck.
  • the end 22 of the pawl support 6 opposite the pawl 3 (in FIG. 2 below) is assigned the armature 17 'of the magnetic release 17 and, via the drawbar 13, which engages an angle 21 of the pawl support 6, the bimetallic release 27. If the pawl support 6 is pivoted counter to the action of the torsion spring 16, that is to say counterclockwise in FIG. 2, under the action of the armature 17 'of the magnetic release 17 or of the tension bracket 13 displaced by the bimetallic release 27, the projection 9 of the pawl 3 comes from the shoulder 10 free on the pawl support 6 and the pawl 3 pivots (in Fig. 2) clockwise, so that the arrangement of pawl 3 and bracket 2 kinks.
  • the carrier tab 4 is pivotable relative to the switching bridge 5
  • the carrier tab 4 and the pawl support 6 can be pivoted about a common axis (formed by the pivot axis 11 fixed to the housing).
  • the switching bridge 5 can pivot further about the point of contact between its end and the contact fixed to the housing, since the pivot axis 11 fixed to the housing is received in the elongated hole 20 of the switching bridge 5, and the switching bridge 5 can therefore move relative to the pivot axis 11.
  • the pivot axis 11 is no longer in contact with the end of the elongated hole 20 adjacent to the pawl support 6 in the switching bridge 5, but is at a distance from this end.
  • the mutual assignment of the relevant parts for triggering, namely the pawl 3 and the pawl support 6 is not changed, since these two parts are not mounted directly on the switching bridge 5, but on the carrier plate 4, which are in the above-mentioned movement of the Switch bridge 5 does not move at the end of the closing process relative to the latch 3 and the latch support 6.
  • a contact position indicator 8 is additionally provided.
  • This contact position indicator 8 is pivotally mounted in the housing about an axis 23 and has a bent part 24 which is assigned to an opening in the housing wall and is visible from the outside through this opening.
  • the contact position indicator 8 also has a lever arm 8 ', in which a curved, slot-shaped recess 28 is provided.
  • the pin 7, which connects the pawl 3 to the carrier tab 4, can protrude through a slot in the lower shell 44 from the housing in which the circuit breaker is accommodated and into an adjacent housing part, in which e.g. a fault current part of a combined circuit breaker is housed.
  • the storage of the pawl 3 on the carrier tab 4 can also be a be hollow axis (for example a tubular rivet), which forms the pivotable connection between the carrier tab 4 and the pawl 3.
  • the hollow axis engages in the embodiment with the contact position indicator 8 in the curved, slot-shaped recess 28 in the lever 26 of the contact position indicator 8, so that the latter is carried along when opening and closing the automatic switch and the positions of the switching bridge 5, ie the ON position and the OFF position.
  • the pin 7 can - if it is provided - be inserted through the hollow axis which connects the pawl 3 to the carrier tab 4.
  • the automatic switch according to the invention can also be equipped with snap-on switching, in which case a spring accumulator is provided in the actuating button 1, so that the bracket 2 only pivots the switching bridge 5 into its ON position, regardless of the pivoting movement of the actuating button 1, if sufficient spring force is stored and on Retention mechanism is overcome.
  • This retention mechanism can be a simple, resilient tongue which is fastened in the housing and which engages on the part of the actuation button 1 with which the bracket 2 is coupled. The retention mechanism only releases this part when the spring accumulator in the actuating button 1 is sufficiently charged for a jump engagement.
  • a self-switch according to the invention thus has a movable switching bridge (5) on which a carrier lug (4) which is pivotable relative to the latter is arranged.
  • the carrier bracket (4) pivotably carries a latch support (6) and a latch (3) which can be locked together.
  • the pawl (3) is coupled via a bracket (2) with an actuating button (1).
  • the bearing (7) of the pawl (3) on the carrier bracket (4) can be used to actuate a contact position indicator (8) and a further switching bridge.
  • the triggering behavior of the circuit breaker is improved by the carrier tab (4), since the pawl support (6) and the pawl (3) are not directly on the switching bridge (5) are mounted so that the switching bridge (5) is relieved.

Landscapes

  • Breakers (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Control Of Eletrric Generators (AREA)
  • Confectionery (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Valve Device For Special Equipments (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electronic Switches (AREA)
  • Push-Button Switches (AREA)
  • Vending Machines For Individual Products (AREA)
  • Massaging Devices (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Fluid-Driven Valves (AREA)
  • Tumbler Switches (AREA)
EP93890124A 1992-06-29 1993-06-21 Selbstschalter Expired - Lifetime EP0577586B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1319/92 1992-06-29
AT0131992A AT404648B (de) 1992-06-29 1992-06-29 Selbstschalter

Publications (2)

Publication Number Publication Date
EP0577586A1 EP0577586A1 (de) 1994-01-05
EP0577586B1 true EP0577586B1 (de) 1997-07-30

Family

ID=3511315

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93890124A Expired - Lifetime EP0577586B1 (de) 1992-06-29 1993-06-21 Selbstschalter

Country Status (14)

Country Link
EP (1) EP0577586B1 (es)
CN (1) CN1031966C (es)
AT (2) AT404648B (es)
AU (1) AU672203B2 (es)
CZ (1) CZ283475B6 (es)
DE (1) DE59306994D1 (es)
DK (1) DK0577586T3 (es)
ES (1) ES2107000T3 (es)
GR (2) GR940300029T1 (es)
HU (1) HU217733B (es)
MY (1) MY114513A (es)
PL (1) PL170273B1 (es)
SK (1) SK282149B6 (es)
TN (1) TNSN93069A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10205311A1 (de) * 2002-02-08 2003-08-28 Siemens Ag Schaltgerät

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19919420A1 (de) * 1999-04-28 2000-11-02 Siemens Ag Schutzschalteinrichtung, beispielsweise Leitungsschutzschalter
DE19919417A1 (de) * 1999-04-28 2000-11-02 Siemens Ag Schutzschalteinrichtung
EP1146534B1 (de) * 2000-04-11 2002-01-02 Felten & Guilleaume KG Schaltmechanik für einen Schutzschalter
CZ300092B6 (cs) * 2001-09-20 2009-01-28 Moeller Gebäudeautomation KG Spínací mechanika pro ochranný spínac
EP1615252B1 (de) * 2004-07-05 2008-09-03 ABB Schweiz AG Bewegliche Kontakteinheit für eine Kontaktanordnung eines Schutzschalters
CN103681136B (zh) * 2013-12-19 2016-10-05 厦门宏发开关设备有限公司 一种开关断路器结构
DE102014106015A1 (de) 2014-04-29 2015-10-29 Eaton Industries Austria Gmbh Schaltgerät
CN104299859B (zh) * 2014-09-29 2016-08-31 江苏普华力拓电器股份有限公司 一种带指示器的断路器
CN114783837A (zh) * 2022-03-28 2022-07-22 伊顿电气有限公司 微型断路器的操作系统和具有其的微型断路器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3339399A1 (de) * 1983-10-29 1985-05-09 Sursum Elektrizitätsgesellschaft Leyhausen GmbH & Co, 8500 Nürnberg Selbstschalter mit lichtbogenblasfeld
FR2616583B1 (fr) * 1987-06-09 1995-01-06 Merlin Gerin Mecanisme de commande d'un disjoncteur electrique miniature
EP0412953B1 (de) * 1989-08-08 1994-08-31 Felten & Guilleaume Fabrik elektrischer Apparate Aktiengesellschaft Leitungsschutzschalter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10205311A1 (de) * 2002-02-08 2003-08-28 Siemens Ag Schaltgerät
DE10205311B4 (de) * 2002-02-08 2006-06-29 Siemens Ag Schaltgerät

Also Published As

Publication number Publication date
GR940300029T1 (en) 1994-05-31
EP0577586A1 (de) 1994-01-05
AT404648B (de) 1999-01-25
ATA131992A (de) 1998-05-15
AU672203B2 (en) 1996-09-26
HU217733B (hu) 2000-04-28
DK0577586T3 (da) 1997-10-06
TNSN93069A1 (fr) 1994-03-17
AU4157993A (en) 1994-01-06
PL170273B1 (pl) 1996-11-29
CN1081785A (zh) 1994-02-09
GR3024584T3 (en) 1997-12-31
CZ283475B6 (cs) 1998-04-15
ES2107000T3 (es) 1997-11-16
HUT67507A (en) 1995-04-28
CZ125793A3 (en) 1994-07-13
SK67493A3 (en) 1994-01-12
SK282149B6 (sk) 2001-11-06
PL299448A1 (en) 1994-01-10
MY114513A (en) 2002-11-30
ATE156304T1 (de) 1997-08-15
CN1031966C (zh) 1996-06-05
HU9301861D0 (en) 1993-09-28
DE59306994D1 (de) 1997-09-04

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