EP0568881A1 - Disjoncteur de puissance avec verrou de maintient - Google Patents

Disjoncteur de puissance avec verrou de maintient Download PDF

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Publication number
EP0568881A1
EP0568881A1 EP93106663A EP93106663A EP0568881A1 EP 0568881 A1 EP0568881 A1 EP 0568881A1 EP 93106663 A EP93106663 A EP 93106663A EP 93106663 A EP93106663 A EP 93106663A EP 0568881 A1 EP0568881 A1 EP 0568881A1
Authority
EP
European Patent Office
Prior art keywords
switch
spring
circuit breaker
switching shaft
shaft
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.)
Withdrawn
Application number
EP93106663A
Other languages
German (de)
English (en)
Inventor
Gerhard Dipl.-Ing. Wilhelm
Christian Dipl.-Ing. Gogeissl
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0568881A1 publication Critical patent/EP0568881A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
    • 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

Definitions

  • the innovation relates to a circuit breaker with a switch lock with an opening spring, which acts on a switching shaft, and movable contact parts which can be acted upon by it.
  • Such a circuit breaker is known from DE-GM 87 01 048.
  • the switch load on the switch should be minimized according to the innovation with a simple construction.
  • This is achieved in a simple manner in that the selector shaft acts in the direction of the switch on separate, translationally guided and spring-loaded contact bridges in the closing direction in such a way that by changing the lever arm in the off position, the force of the corresponding deactivation spring is as large as possible and in the on position with a small lever arm, the torque acting on the selector shaft is as small as possible.
  • the switch-off compression spring has an anti-kink guide.
  • the kink protection guide consists of two similarly designed, nested guide parts inserted into the switch-off compression spring.
  • the active lever connection is made via involute flanks. Is one of the number between the control shaft and actuating plunger for the contact bridges the pole of the switch corresponding number of intermediate levers are provided, which are connected to the switching shaft via the involute flanks, so there is the advantage that the bridge contact load of the individual poles can be measured separately in a simple manner. It is also advantageous if recesses are provided in the selector shaft through which the pressure on the intermediate lever can be measured directly.
  • the circuit breaker of the circuit breaker shown in the drawing consists of the rocker arm 1, a U-bracket 2, a pawl 3 and a pawl lever 4 and a connecting lever 5 for connection to the shaft 6.
  • the shaft 6 corresponds to the switching shaft in the prior art described above . While in the prior art the movable contact pieces are rotatably mounted directly in the control shaft, in the subject of the innovation the rotary movement of the shaft 6 is transmitted via single lever 9 to three translationally movable double contact bridges 11 which can be actuated via plunger 10.
  • An opening spring 8 guided on guide parts 7 against buckling is supported on the one hand on the housing of the circuit breaker and on the other hand on the shaft 6.
  • Contact load springs 12 act on the contact bridges in the closing direction. If the key switch is now switched to the off position, i.e. 2, the switch-off spring relaxes and acts directly against the contact load spring 12 acting on the contact bridges.
  • the active lever arm s changes, as can be seen from the comparison of FIGS. 1 and 2, s on and s off, so that the force of the relaxed opening spring is as large as possible in the off position in order to be able to fully press the contact load springs.
  • the small lever arm s Ein in the on position minimizes the torque acting on the shaft 6 due to the tensioned opening springs and thus the load on the switch.
  • the fact that the opening spring is guided over two identical, mutually coupled guide parts 7 prevents the spring from bulging.
  • a defined straight line of action of the opening spring is achieved regardless of the angular position of the shaft 6.
  • this biasing the opening spring allows easy assembly of the spring.
  • 1 with a and b are the contact surfaces of the active connection, i.e. on shaft 6 and on levers 9. They are designed as involute flanks. This results in a pure rolling movement and thus a minimization of friction losses and abrasion.
  • recesses 13 are provided in the shaft 6, through which a plunger 14 in the fully assembled switch and removed cover part for measuring the bridge contact load FK or the contact through-stroke H individually for each Pole of the switch is insertable.

Landscapes

  • Breakers (AREA)
EP93106663A 1992-05-07 1993-04-23 Disjoncteur de puissance avec verrou de maintient Withdrawn EP0568881A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9206137U 1992-05-07
DE9206137U DE9206137U1 (de) 1992-05-07 1992-05-07 Leistungsschalter mit einem Schaltschloß

Publications (1)

Publication Number Publication Date
EP0568881A1 true EP0568881A1 (fr) 1993-11-10

Family

ID=6879218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93106663A Withdrawn EP0568881A1 (fr) 1992-05-07 1993-04-23 Disjoncteur de puissance avec verrou de maintient

Country Status (2)

Country Link
EP (1) EP0568881A1 (fr)
DE (1) DE9206137U1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998034257A1 (fr) * 1997-02-03 1998-08-06 Siemens Aktiengesellschaft Mecanisme de verrouillage d'un commutateur
WO1998034258A2 (fr) * 1997-02-03 1998-08-06 Siemens Aktiengesellschaft Commutateur a fermeture rapide
EP1562210A2 (fr) * 2004-02-06 2005-08-10 Siemens Aktiengesellschaft Appareil d'installation électrique avec couples optimales et procédé de déclenchement correspondant en présence d'un courant de défaut.
WO2015043632A1 (fr) * 2013-09-25 2015-04-02 Siemens Aktiengesellschaft Appareil de coupure équipé d'un système d'enclenchement brusque
CN104599914A (zh) * 2015-01-30 2015-05-06 浙江天正电气股份有限公司 一种微型断路器
CN106952792A (zh) * 2017-05-18 2017-07-14 常熟开关制造有限公司(原常熟开关厂） 低压断路器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703975C1 (de) * 1997-02-03 1998-05-28 Siemens Ag Schaltgerät
DE19703959C1 (de) * 1997-02-03 1998-04-23 Siemens Ag Schaltgerät mit Tripped-Stellung des Schaltschlosses
DE19703973C1 (de) * 1997-02-03 1998-05-20 Siemens Ag Schaltgerät mit Unterspannungs-Hilfsauslöser

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432787A (en) * 1966-04-05 1969-03-11 Square D Co Manually operated switch
DE8701048U1 (fr) * 1987-01-22 1987-03-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
EP0315093A2 (fr) * 1987-11-05 1989-05-10 Asea Brown Boveri Aktiengesellschaft Contacteur d'installation électrique
DE3903414A1 (de) * 1988-02-24 1989-08-31 Lindner Gmbh Aus haupt- und hilfsschalter bestehende schalterkombination
FR2628260A1 (fr) * 1988-03-04 1989-09-08 Telemecanique Electrique Appareil de protection a contacts commandables par un electroaimant
EP0362846A2 (fr) * 1988-10-06 1990-04-11 Mitsubishi Denki Kabushiki Kaisha Disjoncteur de commande à distance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE629839A (fr) *
DE3149375A1 (de) * 1981-12-12 1983-06-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Kontaktanordnung fuer einen selbstschalter
DE4022078A1 (de) * 1990-07-10 1992-01-16 Siemens Ag Leistungsschalter mit unabhaengiger verklinkungseinrichtung des bewegbaren schaltkontaktes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432787A (en) * 1966-04-05 1969-03-11 Square D Co Manually operated switch
DE8701048U1 (fr) * 1987-01-22 1987-03-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
EP0315093A2 (fr) * 1987-11-05 1989-05-10 Asea Brown Boveri Aktiengesellschaft Contacteur d'installation électrique
DE3903414A1 (de) * 1988-02-24 1989-08-31 Lindner Gmbh Aus haupt- und hilfsschalter bestehende schalterkombination
FR2628260A1 (fr) * 1988-03-04 1989-09-08 Telemecanique Electrique Appareil de protection a contacts commandables par un electroaimant
EP0362846A2 (fr) * 1988-10-06 1990-04-11 Mitsubishi Denki Kabushiki Kaisha Disjoncteur de commande à distance

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998034257A1 (fr) * 1997-02-03 1998-08-06 Siemens Aktiengesellschaft Mecanisme de verrouillage d'un commutateur
WO1998034258A2 (fr) * 1997-02-03 1998-08-06 Siemens Aktiengesellschaft Commutateur a fermeture rapide
WO1998034258A3 (fr) * 1997-02-03 1998-11-05 Siemens Ag Commutateur a fermeture rapide
EP1562210A2 (fr) * 2004-02-06 2005-08-10 Siemens Aktiengesellschaft Appareil d'installation électrique avec couples optimales et procédé de déclenchement correspondant en présence d'un courant de défaut.
EP1562210A3 (fr) * 2004-02-06 2008-03-12 Siemens Aktiengesellschaft Appareil d'installation électrique avec couples optimales et procédé de déclenchement correspondant en présence d'un courant de défaut.
WO2015043632A1 (fr) * 2013-09-25 2015-04-02 Siemens Aktiengesellschaft Appareil de coupure équipé d'un système d'enclenchement brusque
US9734960B2 (en) 2013-09-25 2017-08-15 Siemens Aktiengesellschaft Switching device having an apparatus for switching on suddenly
CN104599914A (zh) * 2015-01-30 2015-05-06 浙江天正电气股份有限公司 一种微型断路器
CN104599914B (zh) * 2015-01-30 2017-02-22 浙江天正电气股份有限公司 一种微型断路器
CN106952792A (zh) * 2017-05-18 2017-07-14 常熟开关制造有限公司(原常熟开关厂） 低压断路器

Also Published As

Publication number Publication date
DE9206137U1 (de) 1993-09-09

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