WO2004073008A1 - Elektromagnetischer leistungsschalter - Google Patents

Elektromagnetischer leistungsschalter Download PDF

Info

Publication number
WO2004073008A1
WO2004073008A1 PCT/EP2004/000894 EP2004000894W WO2004073008A1 WO 2004073008 A1 WO2004073008 A1 WO 2004073008A1 EP 2004000894 W EP2004000894 W EP 2004000894W WO 2004073008 A1 WO2004073008 A1 WO 2004073008A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact bridge
contact
drive
welded
axis
Prior art date
Application number
PCT/EP2004/000894
Other languages
German (de)
English (en)
French (fr)
Inventor
Norbert Schaar
Gerhard Wilhelm
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP04706646A priority Critical patent/EP1593139B1/de
Publication of WO2004073008A1 publication Critical patent/WO2004073008A1/de
Priority to HK06106931A priority patent/HK1086944A1/xx

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
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • 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
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel

Definitions

  • the present invention relates to an electromechanical circuit breaker with a rotary drive which can be rotated about an axis of rotation, a drive element, a contact bridge support, at least one contact bridge and mating contacts,
  • the rotary drive can be rotated between an on and an off position and acts on the contact bridge support via the drive element
  • the at least one contact bridge when the rotary drive is turned into the on position, the at least one contact bridge can be lowered onto the mating contacts by means of the contact bridge carrier, - In the case of a non-welded contact bridge when the rotary actuator is turned into the off position, the at least one contact bridge by means of the contact bridge carrier from the counter contacts can be lifted off,
  • the drive element is pressed against the rotary drive when the contact bridge is not welded to the mating contacts.
  • Circuit breakers of this type are generally known. In particular, they must meet the requirements of IEC 947 Part 1. This means that the rotary drive of such a circuit breaker must not be able to be set to the off position up to a torque specified in IEC 947 Part 1 if the contact bridge is welded to the mating contacts.
  • the object of the present invention is to design a circuit breaker in such a way that the rotary drive, when the contact bridge is welded to the mating contacts, cannot be brought into the off position even with the use of additional parts, or only with significantly increased effort.
  • the object is achieved in that the drive element is held by the contact bridge support in a position in which it blocks rotation of the rotary drive into the off position when the contact bridge is welded to the mating contacts.
  • the rotary drive and the drive element generally also come into contact at a second radial distance that is smaller than the first radial distance.
  • the rotary drive would only interact with the drive element in the case of a contact bridge welded to the mating contacts in the absence of the profiles in the second radial distance.
  • the drive element is generally arranged such that it can be rotated about a drive axis which runs parallel to a plane normal to the axis of rotation. Because then the circuit breaker is particularly simple in construction. If in this case the drive element is immovably mounted with respect to the drive axis, the profiles come into contact with one another at a site of action when the contact bridge is welded to the counter-contacts and a vector perpendicular to the axis of rotation to the site of action runs essentially parallel to a plane normal to the drive axis blocking the rotary drive is particularly effective.
  • the drive element acts on the contact bridge support via a deflection mechanism, in particular a knee joint mechanism
  • the effective chain from the rotary drive to the contact bridge support can be designed more flexibly.
  • FIG 2 is a perspective view of the section of
  • an electromagnetic circuit breaker has a rotary drive 1.
  • the rotary drive 1 is rotatable about an axis of rotation 2. It has two end positions. One end position is called the off position below. It is shown in FIGS. 3 and 4. The other end position is called the on position below. It is shown in FIGS. 1, 2, 5 and 6.
  • a drive element 3 is rotatably mounted below the rotary drive 1 about a drive axis 4.
  • the drive axis 4 runs parallel to (or in) a plane that is normal (perpendicular) to the axis of rotation 2.
  • the drive element 3 is axially immovable with respect to the drive axis 4.
  • the rotary drive 1 acts on the contact bridge support 5 via the drive element 3.
  • the drive element 3 does not act directly on the contact bridge support 5, but via a deflection mechanism 6.
  • the deflection mechanism 6, which according to the exemplary embodiment is designed as a knee joint mechanism 6, could but also eliminated.
  • the contact bridge support 5 is preloaded by means of a spring element 7. As a result, a force is also exerted on the drive element 3, so that the drive element 3 is pressed against the rotary drive 1.
  • the electromagnetic circuit breaker also has at least one switchable electrical contact 8. It can be seen from FIGS. 3, 5 and 7 that there are even three such contacts 8. If necessary, however, more or fewer than three such contacts 8 could also be present. Each contact 8 has a movable contact bridge 9 and fixed counter contacts 10.
  • the contact bridges 9 and the mating contacts 10 are not welded to one another. In this case, the drive element 3 remains pressed against the rotary drive 1 even during the (manual) return of the rotary drive 1 from the on position to the off position. In the case of contact bridges 9 which are not welded to the mating contacts 10, this results in when the rotary drive 1 is rotated from the on to the off position, the contact bridges 9 are also lifted off the counter contacts 10 by means of the contact bridge carrier 5.
  • the rotary drive 1 and the drive element 3 have profiles 11, 12. As can be seen from FIG. 3 and even more clearly from FIG. 4, the profiles 11, 12 are matched to one another in such a way that they do not come into contact with one another if the contact bridges 9 are not welded to the counter-contacts 10. If, on the other hand, at least one of the contact bridges 9 is welded to its corresponding mating contacts 10, the contact bridge carrier 5 cannot move downward. As a result, the drive element 3 is held by the contact bridge carrier 5 in a position in which the profiles 11, 12 come into contact with one another. This state is shown in FIGS. 7 and 8.
  • the profiles 11, 12 come into contact with one another at a site of action which has a first radial distance L 1 from the axis of rotation 2.
  • a vector V is perpendicular to the axis of rotation 2 and points to the site of action. This vector V runs parallel to (or in) a plane that runs normal (perpendicular) to the drive axis 4. Due to the axially immovable mounting of the drive element 3 on the drive shaft 4, it is thus achieved that rotation of the rotary drive 1 into the off position is blocked by the contact of the profiles. The operator thus receives tactile feedback about the fault condition “welded contact bridge 9 *.
  • the rotary drive 1 and the drive element 3 also come into contact with one another at a second radial distance L2.
  • the second radial distance L2 is smaller than the first radial distance L1.
  • this second contact did not occur between the rotary drive 1 and the drive element 3, ie a small remaining distance L3 would remain at point 13.
  • the rotary drive 1 would only interact with the drive element 3 at the second radial distance L2 if the profiles 11, 12 were missing.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Breakers (AREA)
PCT/EP2004/000894 2003-02-14 2004-01-30 Elektromagnetischer leistungsschalter WO2004073008A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04706646A EP1593139B1 (de) 2003-02-14 2004-01-30 Elektromagnetischer leistungsschalter
HK06106931A HK1086944A1 (en) 2003-02-14 2006-06-17 Electromagnetic power switch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003106319 DE10306319B3 (de) 2003-02-14 2003-02-14 Elektromechanischer Leistungsschalter
DE10306319.6 2003-02-14

Publications (1)

Publication Number Publication Date
WO2004073008A1 true WO2004073008A1 (de) 2004-08-26

Family

ID=32863818

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/000894 WO2004073008A1 (de) 2003-02-14 2004-01-30 Elektromagnetischer leistungsschalter

Country Status (5)

Country Link
EP (1) EP1593139B1 (zh)
CN (1) CN100386838C (zh)
DE (1) DE10306319B3 (zh)
HK (1) HK1086944A1 (zh)
WO (1) WO2004073008A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2003667A1 (en) 2007-06-14 2008-12-17 Eaton Electric B.V. Electrical switch with positive status indication
EP2755222A1 (de) * 2013-01-14 2014-07-16 Siemens Aktiengesellschaft Schaltschloss für Niederspannungsschutzgeräte
CN105244235A (zh) * 2015-10-23 2016-01-13 常熟开关制造有限公司(原常熟开关厂） 一种设备用断路器
WO2021001075A1 (de) * 2019-07-03 2021-01-07 Ellenberger & Poensgen Gmbh Schutzschalter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101894695B (zh) * 2009-05-22 2012-10-17 苏州万龙电气集团股份有限公司 锥齿轮式双摇杆浮杆开关装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4322214A1 (de) * 1993-07-03 1995-01-12 Kloeckner Moeller Gmbh Abschließbarer Drehantrieb für Leistungsschalter
DE10152425A1 (de) * 2000-10-30 2002-05-08 Fuji Electric Co Ltd Leitungsschutzschalter
DE20214579U1 (de) * 2002-09-20 2003-03-06 ABB Patent GmbH, 68526 Ladenburg Elektrisches Schaltgerät

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9401386A (nl) * 1994-08-26 1996-04-01 Holec Syst & Componenten Draaischakelaar met vergrendelbare schakelstandblokkering.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4322214A1 (de) * 1993-07-03 1995-01-12 Kloeckner Moeller Gmbh Abschließbarer Drehantrieb für Leistungsschalter
DE10152425A1 (de) * 2000-10-30 2002-05-08 Fuji Electric Co Ltd Leitungsschutzschalter
DE20214579U1 (de) * 2002-09-20 2003-03-06 ABB Patent GmbH, 68526 Ladenburg Elektrisches Schaltgerät

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2003667A1 (en) 2007-06-14 2008-12-17 Eaton Electric B.V. Electrical switch with positive status indication
EP2755222A1 (de) * 2013-01-14 2014-07-16 Siemens Aktiengesellschaft Schaltschloss für Niederspannungsschutzgeräte
WO2014108248A1 (de) * 2013-01-14 2014-07-17 Siemens Aktiengesellschaft Schaltschloss für niederspannungsschutzgeräte
CN105244235A (zh) * 2015-10-23 2016-01-13 常熟开关制造有限公司(原常熟开关厂） 一种设备用断路器
CN105244235B (zh) * 2015-10-23 2017-02-22 常熟开关制造有限公司(原常熟开关厂） 一种设备用断路器
WO2021001075A1 (de) * 2019-07-03 2021-01-07 Ellenberger & Poensgen Gmbh Schutzschalter
US11984282B2 (en) 2019-07-03 2024-05-14 Ellenberger & Poensgen Gmbh Circuit breaker

Also Published As

Publication number Publication date
HK1086944A1 (en) 2006-09-29
EP1593139B1 (de) 2011-12-21
CN100386838C (zh) 2008-05-07
EP1593139A1 (de) 2005-11-09
CN1748280A (zh) 2006-03-15
DE10306319B3 (de) 2004-11-04

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